Sperm motility. Medical search

Movement characteristics of SPERMATOZOA in a fresh specimen. It is measured as the percentage of sperms that are moving, and as the percentage of sperms with productive flagellar motion such as rapid, linear, and forward progression.

A count of SPERM in the ejaculum, expressed as number per milliliter.

Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.

The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma.

The structural and functional changes by which SPERMATOZOA become capable of oocyte FERTILIZATION. It normally requires exposing the sperm to the female genital tract for a period of time to bring about increased SPERM MOTILITY and the ACROSOME REACTION before fertilization in the FALLOPIAN TUBES can take place.

The anterior portion of the spermatozoon (SPERMATOZOA) that contains mainly the nucleus with highly compact CHROMATIN material.

The process by which semen is kept viable outside of the organism from which it was derived (i.e., kept from decay by means of a chemical agent, cooling, or a fluid substitute that mimics the natural state within the organism).

The inability of the male to effect FERTILIZATION of an OVUM after a specified period of unprotected intercourse. Male sterility is permanent infertility.

A condition in which the percentage of progressively motile sperm is abnormally low. In men, it is defined as

The posterior filiform portion of the spermatozoon (SPERMATOZOA) that provides sperm motility.

The quality of SEMEN, an indicator of male fertility, can be determined by semen volume, pH, sperm concentration (SPERM COUNT), total sperm number, sperm viability, sperm vigor (SPERM MOTILITY), normal sperm morphology, ACROSOME integrity, and the concentration of WHITE BLOOD CELLS.

The convoluted cordlike structure attached to the posterior of the TESTIS. Epididymis consists of the head (caput), the body (corpus), and the tail (cauda). A network of ducts leaving the testis joins into a common epididymal tubule proper which provides the transport, storage, and maturation of SPERMATOZOA.

The maturing process of SPERMATOZOA after leaving the testicular SEMINIFEROUS TUBULES. Maturation in SPERM MOTILITY and FERTILITY takes place in the EPIDIDYMIS as the sperm migrate from caput epididymis to cauda epididymis.

The cap-like structure covering the anterior portion of SPERM HEAD. Acrosome, derived from LYSOSOMES, is a membrane-bound organelle that contains the required hydrolytic and proteolytic enzymes necessary for sperm penetration of the egg in FERTILIZATION.

The emission of SEMEN to the exterior, resulting from the contraction of muscles surrounding the male internal urogenital ducts.

Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION.

Passive or active movement of SPERMATOZOA from the testicular SEMINIFEROUS TUBULES through the male reproductive tract as well as within the female reproductive tract.

The motor activity of the GASTROINTESTINAL TRACT.

The fusion of a spermatozoon (SPERMATOZOA) with an OVUM thus resulting in the formation of a ZYGOTE.

The capacity to conceive or to induce conception. It may refer to either the male or female.

Preservation of cells, tissues, organs, or embryos by freezing. In histological preparations, cryopreservation or cryofixation is used to maintain the existing form, structure, and chemical composition of all the constituent elements of the specimens.

The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.

The middle piece of the spermatozoon is a highly organized segment consisting of MITOCHONDRIA, the outer dense fibers and the core microtubular structure.

Changes that occur to liberate the enzymes of the ACROSOME of a sperm (SPERMATOZOA). Acrosome reaction allows the sperm to penetrate the ZONA PELLUCIDA and enter the OVUM during FERTILIZATION.

The secretory proteins of the seminal vesicles are proteins and enzymes that are important in the rapid clotting of the ejaculate. The major clotting protein is seminal vesicle-specific antigen. Many of these seminal vesicle proteins are under androgen regulation, and are substrates for the prostatic enzymes, such as the PROSTATE-SPECIFIC ANTIGEN, a protease and an esterase.

An assisted fertilization technique consisting of the microinjection of a single viable sperm into an extracted ovum. It is used principally to overcome low sperm count, low sperm motility, inability of sperm to penetrate the egg, or other conditions related to male infertility (INFERTILITY, MALE).

A tough transparent membrane surrounding the OVUM. It is penetrated by the sperm during FERTILIZATION.

Centers for acquiring and storing semen.

A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen.

Artificial introduction of SEMEN or SPERMATOZOA into the VAGINA to facilitate FERTILIZATION.

Proteins found in SEMEN. Major seminal plasma proteins are secretory proteins from the male sex accessory glands, such as the SEMINAL VESICLES and the PROSTATE. They include the seminal vesicle-specific antigen, an ejaculate clotting protein; and the PROSTATE-SPECIFIC ANTIGEN, a protease and an esterase.

Substances that provide protection against the harmful effects of freezing temperatures.

A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)

The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA.

Chemical substances or agents with contraceptive activity in males. Use for male contraceptive agents in general or for which there is no specific heading.

Chemical substances with sperm immobilizing activity used as topically administered vaginal contraceptives.

The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.

The male reproductive organs. They are divided into the external organs (PENIS; SCROTUM;and URETHRA) and the internal organs (TESTIS; EPIDIDYMIS; VAS DEFERENS; SEMINAL VESICLES; EJACULATORY DUCTS; PROSTATE; and BULBOURETHRAL GLANDS).

A genus of long-legged, swift-moving felines (FELIDAE) from Africa (and formerly Asia) about the size of a small leopard.

Any of various ruminant mammals of the order Bovidae. They include numerous species in Africa and the American pronghorn.

Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.

Human artificial insemination in which the husband's semen is used.

A slightly alkaline secretion of the endocervical glands. The consistency and amount are dependent on the physiological hormone changes in the menstrual cycle. It contains the glycoprotein mucin, amino acids, sugar, enzymes, and electrolytes, with a water content up to 90%. The mucus is a useful protection against the ascent of bacteria and sperm into the uterus. (From Dictionary of Obstetrics and Gynecology, 1988)

A saclike, glandular diverticulum on each ductus deferens in male vertebrates. It is united with the excretory duct and serves for temporary storage of semen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

A mature haploid female germ cell extruded from the OVARY at OVULATION.

An assisted reproductive technique that includes the direct handling and manipulation of oocytes and sperm to achieve fertilization in vitro.

A chlorinated PROPANEDIOL with antifertility activity in males used as a chemosterilant in rodents.

Sexual stimulation or gratification of the self.

Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.

A pair of highly specialized muscular canals extending from the UTERUS to its corresponding OVARY. They provide the means for OVUM collection, and the site for the final maturation of gametes and FERTILIZATION. The fallopian tube consists of an interstitium, an isthmus, an ampulla, an infundibulum, and fimbriae. Its wall consists of three histologic layers: serous, muscular, and an internal mucosal layer lined with both ciliated and secretory cells.

A condition characterized by the dilated tortuous veins of the SPERMATIC CORD with a marked left-sided predominance. Adverse effect on male fertility occurs when varicocele leads to an increased scrotal (and testicular) temperature and reduced testicular volume.

Surgical removal of the ductus deferens, or a portion of it. It is done in association with prostatectomy, or to induce infertility. (Dorland, 28th ed)

The total process by which organisms produce offspring. (Stedman, 25th ed)

A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL.

Fleshy and reddish outgrowth of skin tissue found on top of the head, attached to the sides of the head, and hanging from the mandible of birds such as turkeys and chickens.

A polyvinyl polymer of variable molecular weight; used as suspending and dispersing agent and vehicle for pharmaceuticals; also used as blood volume expander.

A METHYLXANTHINE derivative that inhibits phosphodiesterase and affects blood rheology. It improves blood flow by increasing erythrocyte and leukocyte flexibility. It also inhibits platelet aggregation. Pentoxifylline modulates immunologic activity by stimulating cytokine production.

A group of simple proteins that yield basic amino acids on hydrolysis and that occur combined with nucleic acid in the sperm of fish. Protamines contain very few kinds of amino acids. Protamine sulfate combines with heparin to form a stable inactive complex; it is used to neutralize the anticoagulant action of heparin in the treatment of heparin overdose. (From Merck Index, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p692)

Liquids transforming into solids by the removal of heat.

Chemical substances that are destructive to spermatozoa used as topically administered vaginal contraceptives.

A structurally-diverse family of intracellular-signaling adaptor proteins that selectively tether specific protein kinase A subtypes to distinct subcellular sites. They play a role in focusing the PROTEIN KINASE A activity toward relevant substrates. Over fifty members of this family exist, most of which bind specifically to regulatory subunits of CYCLIC AMP-DEPENDENT PROTEIN KINASE TYPE II such as CAMP PROTEIN KINASE RIIALPHA or CAMP PROTEIN KINASE RIIBETA.

A species of the true toads, Bufonidae, found in South America.

Cytoplasm stored in an egg that contains nutritional reserves for the developing embryo. It is rich in polysaccharides, lipids, and proteins.

Disorders affecting the motor function of the UPPER ESOPHAGEAL SPHINCTER; LOWER ESOPHAGEAL SPHINCTER; the ESOPHAGUS body, or a combination of these parts. The failure of the sphincters to maintain a tonic pressure may result in gastric reflux of food and acid into the esophagus (GASTROESOPHAGEAL REFLUX). Other disorders include hypermotility (spastic disorders) and markedly increased amplitude in contraction (nutcracker esophagus).

The ratio of the number of conceptions (CONCEPTION) including LIVE BIRTH; STILLBIRTH; and fetal losses, to the mean number of females of reproductive age in a population during a set time period.

The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.

The species Physeter catodon (also called Physeter macrocephalus), in the family Physeteridae. The common name is derived from the milky wax substance in its head (spermaceti). The species also produces an intestinal secretion AMBERGRIS, which was previously used in perfumes. The sperm whale is the largest toothed MAMMAL in the world.

Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).

A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.

The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.

An adenine nucleotide containing one phosphate group which is esterified to both the 3'- and 5'-positions of the sugar moiety. It is a second messenger and a key intracellular regulator, functioning as a mediator of activity for a number of hormones, including epinephrine, glucagon, and ACTH.

A technique that uses LASERS to trap, image, and manipulate small objects (biomolecules, supramolecular assembles, DENDRIMERS) in three dimensional space. (From Glossary of Biotechnology and Nanobiotechnology Terms, 4th ed.)

Elements of limited time intervals, contributing to particular results or situations.

The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells.

A plant genus of the family Caricaceae, order Violales, subclass Dilleniidae, class Magnoliopsida. It is the source of edible fruit and PAPAIN.

An enzyme bound to the inner mitochondrial membrane that catalyzes the oxidation of CHOLINE to BETAINE.

A family of anadromous fish comprising SALMON; TROUT; whitefish; and graylings. They are the most important food and game fishes. Their habitat is the northern Atlantic and Pacific, both marine and inland, and the Great Lakes. (Nelson: Fishes of the World, 1976, p97)

Solutions that have a lesser osmotic pressure than a reference solution such as blood, plasma, or interstitial fluid.

Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.

An organophosphorus insecticide that inhibits ACETYLCHOLINESTERASE.

The application of LUBRICANTS to diminish FRICTION between two surfaces.

Chemical agents that increase the permeability of biological or artificial lipid membranes to specific ions. Most ionophores are relatively small organic molecules that act as mobile carriers within membranes or coalesce to form ion permeable channels across membranes. Many are antibiotics, and many act as uncoupling agents by short-circuiting the proton gradient across mitochondrial membranes.

A genus of the family Muridae having three species. The present domesticated strains were developed from individuals brought from Syria. They are widely used in biomedical research.

The relationship between the dose of an administered drug and the response of the organism to the drug.

Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).

A drug formerly used in the treatment of angina pectoris but superseded by less hazardous drugs. Prenylamine depletes myocardial catecholamine stores and has some calcium channel blocking activity. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1406)

The measurement of an organ in volume, mass, or heaviness.

Sexual activities of animals.

Refraining from SEXUAL INTERCOURSE.

A cutaneous pouch of skin containing the testicles and spermatic cords.

A species of PERCIFORMES commonly used in saline aquaculture.

The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.

Splitting the DNA into shorter pieces by endonucleolytic DNA CLEAVAGE at multiple sites. It includes the internucleosomal DNA fragmentation, which along with chromatin condensation, are considered to be the hallmarks of APOPTOSIS.

A family of multisubunit cytoskeletal motor proteins that use the energy of ATP hydrolysis to power a variety of cellular functions. Dyneins fall into two major classes based upon structural and functional criteria.

Chemical agents or odors that stimulate sexual desires. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.

The convoluted tubules in the TESTIS where sperm are produced (SPERMATOGENESIS) and conveyed to the RETE TESTIS. Spermatogenic tubules are composed of developing germ cells and the supporting SERTOLI CELLS.

Agents, either mechanical or chemical, which destroy spermatozoa in the male genitalia and block spermatogenesis.

The concentration of osmotically active particles in solution expressed in terms of osmoles of solute per liter of solution. Osmolality is expressed in terms of osmoles of solute per kilogram of solvent.

Liquid components of living organisms.

A trihydroxy sugar alcohol that is an intermediate in carbohydrate and lipid metabolism. It is used as a solvent, emollient, pharmaceutical agent, and sweetening agent.

A group of enzymes that are dependent on CYCLIC AMP and catalyze the phosphorylation of SERINE or THREONINE residues on proteins. Included under this category are two cyclic-AMP-dependent protein kinase subtypes, each of which is defined by its subunit composition.

Process of using a rotating machine to generate centrifugal force to separate substances of different densities, remove moisture, or simulate gravitational effects. It employs a large motor-driven apparatus with a long arm, at the end of which human and animal subjects, biological specimens, or equipment can be revolved and rotated at various speeds to study gravitational effects. (From Websters, 10th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

An NAD-dependent glyceraldehyde-3-phosphate dehydrogenase found in the cytosol of eucaryotes. It catalyses the dehydrogenation and phosphorylation of GLYCERALDEHYDE 3-PHOSPHATE to 3-phospho-D-glyceroyl phosphate, which is an important step in the GLYCOLYSIS pathway.

Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.

Lectin purified from peanuts (ARACHIS HYPOGAEA). It binds to poorly differentiated cells and terminally differentiated cells and is used in cell separation techniques.

N-(1-Oxobutyl)-cyclic 3',5'-(hydrogen phosphate)-2'-butanoate guanosine. A derivative of cyclic GMP. It has a higher resistance to extracellular and intracellular phosphodiesterase than cyclic GMP.

Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light. Immunofluorescence microscopy utilizes antibodies that are labeled with fluorescent dye.

A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity.

MYCOBACTERIUM infections of the male reproductive tract (GENITALIA, MALE).

An animal or plant species in danger of extinction. Causes can include human activity, changing climate, or change in predator/prey ratios.

A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS.

Proteins found in the microtubules.

Male germ cells derived from the haploid secondary SPERMATOCYTES. Without further division, spermatids undergo structural changes and give rise to SPERMATOZOA.

Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.

An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.

Maintenance of motility in mouse sperm permeabilized with streptolysin O. (1/2575)

One approach to studying the mechanisms governing sperm motility is to permeabilize sperm and examine the regulation of motility by manipulating the intracellular milieu of the cell. The most common method of sperm permeabilization, detergent treatment, has the disadvantage that the membranes and many proteins are extracted from the cell. To avoid this problem, we have developed a method that uses streptolysin O to create stable pores within the plasma membrane while leaving internal membranes intact. Sperm were permeabilized, preincubated, and then treated with 0.6 U/ml of streptolysin O. Permeabilization was assessed by fluorescent dye technologies and endogenous protein phosphorylation using exogenously added [gamma-32P]ATP. Streptolysin O-induced permeabilization rendered the sperm immotile, and the effect was Ca2+-dependent. When the cells were treated simultaneously with a medium containing ATP, streptolysin O-treated sperm maintained flagellar movement. These results demonstrate that the streptolysin O permeabilization model system is a useful experimental method for studying the mechanisms that regulate sperm motility since it allows the flagellar apparatus to be exposed to various exogenously added molecules. (+info)

A sialoglycoprotein, gp20, of the human capacitated sperm surface is a homologue of the leukocyte CD52 antigen: analysis of the effect of anti-CD52 monoclonal antibody (CAMPATH-1) on capacitated spermatozoa. (2/2575)

In this study we performed N-terminal sequence analysis of gp20, a 20 kDa sialoglycoprotein on the human sperm surface previously identified by radiolabelling of the sialic acid residues of sperm surface. We found 100% identity with the N-terminus of CD52, an antigen expressed on almost all human leukocytes. We also show that, like CD52, gp20 behaves as a glycosylphosphatidylinositol (GPI)-anchored protein and that anti-gp20 antiserum reacts with an antigen on leukocytes of the same molecular weight as CD52. Using CAMPATH-1, the monoclonal antibody against CD52, in fluorescent staining of capacitated spermatozoa, Western blot analysis and the zona-free hamster egg penetration test, we found that the effect of this antibody was different from that of our anti-gp20. Western blot analysis revealed a well-defined 20 kDa band with anti-gp20, whereas a 14-20 kDa band was detected with CAMPATH-1. Anti-gp20 stained the equatorial region of the sperm head, whereas CAMPATH-1 stained the tail in immunofluorescence analysis of capacitated spermatozoa. A dose-dependent inhibitory effect was seen with CAMPATH-1, similar to that previously detected with anti-gp20, in a zona-free hamster egg penetration test. However, with CAMPATH-1 agglutination of motile spermatozoa was detected, and this was not present with anti-gp20. This suggests that the epitopes recognized by the two antibodies are different. (+info)

Binding of annexin V to plasma membranes of human spermatozoa: a rapid assay for detection of membrane changes after cryostorage. (3/2575)

When the cell membrane is disturbed, phospholipid phosphatidylserine (PS) is translocated from the inner to the outer leaflet of the plasma membrane. This is one of the earliest signs of apoptosis and can be monitored by the calcium-dependent binding of annexin V. Therefore, annexin V-binding, in conjunction with flow cytometry, was used to evaluate the integrity of the sperm plasma membrane after different cryostorage protocols: i.e. 10% (v/v) glycerol; sperm maintenance medium (MM); freezing medium TEST yolk buffer (TYB); or cryostorage without protection (cryoshock). Using a combination of two fluorescent dyes, annexin V and propidium iodide (PI), led to three groups of spermatozoa being identified: (i) viable spermatozoa (annexin V-negative and PI-negative); (ii) dead spermatozoa (annexin V-positive and PI-positive); and (iii) cells with impaired but integer plasma membrane (annexin V-positive and PI-negative). The percentage of vital annexin V-negative spermatozoa increased significantly (P < 0.05) from spermatozoa treated by cryoshock (15.0+/-1.2%) to spermatozoa cryopreserved by TYB (26.6+/-2.2%) via cryopreservation by 10% (v/v) glycerol (19.9+/-1.6%) and by MM (22.2 1.8%) and was associated with the percentage of motile spermatozoa (17.6+/-3.4% by glycerol; 19.6+/-3.7% by MM and 22.6+/-3.9% by TYB; P = 0.0001). Of the spermatozoa, 12-22% were annexin V-positive even though they did not bind to PI, indicating viability before as well as after cryostorage. The percentage of vital annexin V-positive spermatozoa was significantly correlated with different sperm motility parameters (velocity straight linear, r = 0.601, P = 0.018; percentage of linearly motile spermatozoa: r = 0.549, P = 0.034). We, therefore, concluded that annexin V-binding is more sensitive in detecting a deterioration of membrane functions than PI staining, and that a considerable percentage of spermatozoa might have dysfunctional plasma membranes besides dead or moribund cells. Of the cryopreservation protocols tested, TYB yielded the most viable spermatozoa. Therefore, we advocate the use of the annexin V-binding assay for the evaluation of the quality and integrity of spermatozoa. (+info)

Effects of taurine on the motility and intracellular free Ca2+ concentration of fowl spermatozoa in vitro. (4/2575)

The effects of taurine on the motility and intracellular free Ca2+ concentration of fowl spermatozoa were investigated in vitro. The addition of taurine, within the range of 0-5 mmol l(-1), did not appreciably affect the motility of intact fowl spermatozoa. Motility remained almost negligible at 40 degrees C, while vigorous movement was observed at 25 degrees C. Even with the addition of Ca2+ before the addition of taurine, neither stimulation nor inhibition of motility was observed compared with the control (no addition of taurine). Similar results were obtained by the addition of taurine and calyculin A, a specific inhibitor of protein phosphatases. There were no changes in intracellular free Ca2+ concentrations, measured by a fluorescent Ca2+ indicator, fura-2, in taurine-treated spermatozoa. These results suggest that taurine is not involved in the regulation of fowl sperm motility and metabolism by intracellular Ca2+ mobilization in vitro. (+info)

Occurrence of prostasome-like membrane vesicles in equine seminal plasma. (5/2575)

Equine seminal plasma was shown to contain membrane vesicles that are similar to the well characterized prostasomes in human seminal plasma. Determination of nucleoside and nucleotide concentrations of these particles have shown that ATP, ADP and adenosine are the main components of the nucleotidic pool. 5' nucleotidase, endopeptidase and dipeptidyl peptidase i.v. activities have been found on the surface of the particles. The interaction between these prostasome-like vesicles and spermatozoa was demonstrated by electron micrograph scans which revealed the steps of a fusion-like process leading to mixing of the membranes. In addition, endopeptidase activity, a marker enzyme of these seminal vesicles that is normally absent from equine spermatozoa, was shown to be acquired by these cells after interaction with the vesicles. The addition of these vesicles to equine spermatozoa resulted in the modification of adenylate catabolism. Therefore, a role in stabilizing the energy charge of the spermatozoa thus allowing longer viability is proposed for these organelles. (+info)

Sperm abnormalities and histopathological changes in the testes in Crj:CD(SD)IGS rats. (6/2575)

In this study, morphological examination and computer-assisted sperm analysis (CASA) of epididymal spermatozoa in non-treated Crj:CD(SD)IGS rats were performed, and the relationship between the data obtained and the retention of step 19 spermatids in Stage IX to XI seminiferous tubules was examined. Retention of step 19 spermatids in Stage IX to XI seminiferous tubules was observed in all 50 untreated males, and the incidence ranged from 3.3% to 100%. Eighteen animals showed a high incidence of retention (74.7 +/- 14.2%, HIR for short), and the others showed a low incidence (24.9 +/- 11.0%, LIR for short). Although the incidence of retention in Stage X and XI seminiferous tubules was very low in LIR males, it was high in HIR males (1.8 +/- 3.0% vs 58.6 +/- 23.2%). Morphological abnormalities of sperms in the caudal region of the epididymis, mainly amorphous head and no head, were more frequently observed in HIR males than in LIR males (36.2 +/- 28.5% vs 1.8 +/- 1.2%). Sperm analysis also revealed some differences between HIR and LIR males: sperm motility in HIR males was severely lower than that in LIR males, and sperm velocity, beat/cross frequency and amplitude of lateral head displacement in HIR males were lower than the corresponding values in LIR males. In summation, retention of step 19 spermatids frequently occurred in the non-treated Crj:CD(SD)IGS males, and a relationship between the retention of these spermatids and sperm abnormalities, such as morphologically abnormal sperms, low motility and other items revealed by sperm analysis (CASA), was suggested. (+info)

Inhibition of human sperm motility by specific herbs used in alternative medicine. (7/2575)

PURPOSE: Our purpose was to analyze sperm motility parameters in the presence of herbs. METHODS: Washed sperm were incubated in either saw-palmetto (Serenoa repens, Permixon Sabal serrulatum), echinacea purpura, ginkgo biloba, St. John's wort (Hypericum perforatum), or control medium. Parameters were measured on a Hamilton-Thorn analyzer after 1, 4, 24, and 48 hr at 37 degrees C. RESULTS: Sperm motility was inhibited at the high concentration (0.6 mg/mL) of St. John's wort. Curvilinear velocities and beat cross frequencies also decreased, but not hyperactivation. High-concentration saw-palmetto, echinacea, or gikgo inhibited motility at 24 and 48 hr. CONCLUSIONS: A potent inhibition of sperm motility was seen in St. John's wort unrelated to changes in pH. Furthermore, sperm viability was compromised in St. John's wort, suggesting a spermicidal effect. Metabolic changes were observed in saw-palmetto-treated sperm. High-concentration echinacea purpura interfered with sperm enzymes. Ginkgo did not have an antioxidant effect on sperm motility. (+info)

Hyperactivated motility of human spermatozoa: a review of physiological function and application in assisted reproduction. (8/2575)

Hyperactivated motility is a specific movement pattern which has been recognized in mammalian spermatozoa for over 25 years. During this time, it has been established that hyperactivation is part of the complex process of sperm capacitation, which is necessary before fertilization can occur. The recent introduction of computed sperm motility analysis has allowed detailed studies of sperm movement characteristics to be undertaken, and evidence is accumulating that hyperactivated motility may correlate with fertility. In this review, the physiological consequences of hyperactivated motility, methods of measurement and their application in assisted reproduction are discussed. (+info)

Sperm DNA damage is common in infertile men. About 31% of men with sperm motility defects have high levels of sperm DNA ... Wikimedia Commons has media related to Sperm motility. Sperm motility, Colorado State University Semen analysis - how to ... Sperm motility can also be thought of as the quality, which is a factor in successful conception; sperm that do not "swim" ... Sperm motility in mammals also facilitates the passage of the sperm through the cumulus oophorus (a layer of cells) and the ...

https://en.wikipedia.org/wiki/Sperm_motility

Lindemann C (4 April 2008). "Mechanisms of sperm motility". Oakland University. Archived from the original on 16 May 2008. ... ISBN 978-1-904455-48-6. Malo AF, Gomendio M, Garde J, Lang-Lenton B, Soler AJ, Roldan ER (June 2006). "Sperm design and sperm ... These provide swarming motility on surfaces or in viscous fluids. Bundling is an event that can happen in multi-flagellated ... flagella) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of ...

https://en.wikipedia.org/wiki/Flagellum

Umpierre, S. A; Hill, J. A; Anderson, D. J (1985). "Effect of Coke on Sperm Motility". New England Journal of Medicine. 313 (21 ... Cecil Jacobson, relentlessly generous sperm donor, and prolific patriarch of sperm banking, for devising a simple, single- ... Mikkelson, Barbara (16 March 2007). "Killer Sperm: Coca-Cola Spermicide". Snopes. Retrieved 3 October 2008. Nakagaki, T.; ... a sperm bank that accepts donations only from Nobellians and Olympians. Chemistry - Jacques Benveniste, prolific proselytizer ...

https://en.wikipedia.org/wiki/List_of_Ig_Nobel_Prize_winners

Cosson, M.P. (1990) Sperm chemotaxis. In: Controls of Sperm Motility: Biological and Clinical Aspects (Gagnon, C., ed.) pp. 103 ... Sperm chemotaxis is a form of sperm guidance, in which sperm cells (spermatozoa) follow a concentration gradient of a ... Since the discovery of sperm attraction to the female gametes in ferns over a century ago, sperm guidance in the form of sperm ... Morisawa, M. (1994). Cell signaling mechanisms for sperm motility. Zool. Sci. 11, 647-662. Macnab, R.M. and Koshland, D.E. ( ...

https://en.wikipedia.org/wiki/Sperm_chemotaxis

Preventing sperm motility will inhibit the sperm from travelling towards the egg moving down the fallopian tubes to the uterus ... Laboratory testing of substances to see if they inhibited sperm motility began in the 1800s. Modern spermicides nonoxynol-9 and ... Umpierre, Sharee A.; Hill, Joseph A.; Anderson, Deborah J. (21 November 1985). "Effect of 'Coke' on sperm motility". The New ... The deep proper insertion of spermicide should effectively block the cervix so that sperm cannot make it past the cervix to the ...

https://en.wikipedia.org/wiki/Spermicide

Her research topic was sperm motility. Nass is married to Shlomo Nass, an accountant specializing in liquidations and ...

https://en.wikipedia.org/wiki/Lea_Nass

Movement of sperm is called sperm motility. The middle of the mammalian spermatozoon contains mitochondria that power the ... Certain organisms such as bacteria and animal sperm have flagellum which have developed a way to move in liquid environments. A ... Mortimer, Sharon T. (1997). "A critical review of the physiological importance and analysis of sperm movement in mammals". ... sperm and microanimals. Ciliates use small flagella called cilia to move through the water. One ciliate will generally have ...

https://en.wikipedia.org/wiki/Aquatic_locomotion

Curtis-Prior, PB; Gadd, AL (1990). "Beta-adrenoceptor antagonists and human sperm motility". The Journal of Pharmacy and ...

https://en.wikipedia.org/wiki/Tolamolol

Morphologic changes and influences on sperm motility]. Archiv Fur Gynakologie (in German). 219 (1-4): 581-582. doi:10.1007/ ... At a dosage of 200 mg/day, CPA has been found to produce azoospermia (sperm count of less than 1 million/mL) in men within 8 to ... Meriggiola MC, Costantino A, Bremner WJ, Morselli-Labate AM (2002). "Higher testosterone dose impairs sperm suppression induced ...

https://en.wikipedia.org/wiki/Pharmacology_of_cyproterone_acetate

... is a type of sperm motility. Hyperactivated sperm motility is characterised by a high amplitude, asymmetrical ... Mammalian sperm cells become more active when they approach an egg cell in a process called sperm activation. Sperm activation ... Suarez, SS (21 March 2003). "Hyperactivated motility in sperm". Reproduction in Domestic Animals. 38 (2): 119-24. doi:10.1046/j ... beating pattern of the sperm tail (flagellum). This type of motility may aid in sperm penetration of the zona pellucida, which ...

https://en.wikipedia.org/wiki/Hyperactivation

This hyperosmotic environment facilitates sperm activation and motility. The fertilization is therefore regarded as being ... It is believed that this protected form of fertilization reduces sperm competition among males. Within the Syngnathidae ( ... "Dimorphic sperm and the unlikely route to fertilisation in the yellow seahorse". Journal of Experimental Biology. 210 (3): 432- ... size to body size suggests that pipefishes may also have evolved mechanisms for more efficient fertilization with reduced sperm ...

https://en.wikipedia.org/wiki/Seahorse

Pittsburgh, PA: University of Pittsburgh Press Anderson, M. J.; Dixson, A. F. (2002). "Sperm competition: motility and the ...

https://en.wikipedia.org/wiki/Polygamy

Nicotine is negatively associated with total sperm motility. Nicotine causes dysfunction of NO synthesis. This may result in ... Cadmium that have been found in the e-cigarette vapor is linked to low sperm density. E-cigarettes resembling cigarettes ...

https://en.wikipedia.org/wiki/Safety_of_electronic_cigarettes

"Role of Sperm Surface Molecules in Motility Regulation". Mammalian Endocrinology and Male Reproductive Biology. CRC Press. pp. ... "Role of Sperm Surface Molecules in Motility Regulation". Mammalian Endocrinology and Male Reproductive Biology. CRC Press. pp. ... as a research fellow for his doctoral studies and submitted his thesis Biochemical regulation of sperm motility, which earned ... Aakash Gautam Mukhopadhyay, Chinmoy Sankar Dey (2016). "Reactivation of flagellar motility in demembranated Leishmania reveals ...

https://en.wikipedia.org/wiki/Chinmoy_Sankar_Dey

"Motility of human sperm without outer dynein arms". J. Submicrosc. Cytol. 15 (1): 67-71. PMID 6221120. Vaughan KT, Mikami A, ... 1997). "Multiple mouse chromosomal loci for dynein-based motility". Genomics. 36 (1): 29-38. doi:10.1006/geno.1996.0422. PMID ...

https://en.wikipedia.org/wiki/DNAH5

"Prenatal testosterone excess reduces sperm count and motility". Endocrinology. 149 (12): 6444-8. doi:10.1210/en.2008-0785. PMID ... so if by chance there is sperm in the ovaries later on through the testing it can then be pinned to the chemical without the ... but of greatest concern are effects on the development of the male reproductive system and production of normal sperm in young ... decreased sperm count, reproductive problems, early puberty, obesity, and neurological problems. Early developmental stages ...

https://en.wikipedia.org/wiki/Endocrine_disruptor

... these men also experienced a decreased sperm motility. However, one of the patients in the group successfully impregnated his ... Of the eighteen men in the test group only one experienced an increase in sperm count, while others saw no improvement; ... Oligospermia is when extremely low concentrations of fertile sperm are found in semen or ejaculate, while azoospermia is when ... that using long-term gonadotropin therapy on infertile men can improve sperm production quantitatively and increase sperm ...

https://en.wikipedia.org/wiki/Spermatogenesis_arrest

Pittsburgh, Pennsylvania: University of Pittsburgh Press Anderson, M. J.; Dixson, A. F. (2002). "Sperm competition: motility ... male sperm precedence in polyandrous wool-carder bees and the evolution of male resource defence in Hymenoptera". Animal ...

https://en.wikipedia.org/wiki/Polygyny

... appear to improve sperm motility and protect against attacks from the female immune defense during the passage to ... Stegmayr B, Ronquist G (1982). "Stimulation of sperm progressive motility by organelles in human seminal plasma". Scandinavian ... Stegmayr B, Ronquist G (1982). "Promotive effect on human sperm progressive motility by prostasomes". Urological Research. 10 ( ... "Distribution of cyclic AMP in human seminal plasma and its relation to sperm progressive motility". Scandinavian Journal of ...

https://en.wikipedia.org/wiki/Prostasomes

In males, relaxin enhances motility of sperm in semen. In the cardiovascular system, relaxin is secreated by the heart and ...

https://en.wikipedia.org/wiki/Relaxin

His sperm were abnormally formed and had reduced motility. c = colt, f = filly, g = gelding Morris, Simon; Tesio Power 2000 - ...

https://en.wikipedia.org/wiki/Starspangledbanner

However, Mastotermitidae termites have multiflagellate sperm with limited motility. The genitals in females are also simplified ... ISBN 978-0-521-48526-5. Morrow, E.H. (2004). "How the sperm lost its tail: the evolution of aflagellate sperm". Biological ... For example, the intromittent organ is not present in male alates, and the sperm is either immotile or aflagellate. ... As the queen and king are monogamous, sperm competition does not occur. Termites going through incomplete metamorphosis on the ...

https://en.wikipedia.org/wiki/Termite

It has been shown to improve sperm motility in vitro. Whitaker, RM; Wills, LP; Stallons, LJ; Schnellmann, RG (2013). "CGMP- ... Novel pharmacological actions of trequinsin hydrochloride improve human sperm cell motility and function. Br J Pharmacol. 2019 ...

https://en.wikipedia.org/wiki/Trequinsin

Thangaraj, K. (2003). "Sperm mitochondrial mutations as a cause of low sperm motility". J. Androl. 24 (3): 388⎯392. doi:10.1002 ... while more recent analysis of the same sequence led to a conclusion that sperm mtDNA has mutations that cause low sperm ... mature sperms are incapable of DSB repair. Additionally, DSB can also be repaired by homologous recombination (HR), which is ...

https://en.wikipedia.org/wiki/NUMT

... which is reduced sperm morphology and motility. Low sperm counts are often associated with decreased sperm motility and ... motility, morphology, and seminal volume. Males from India had a 30.3% decline in sperm count, 22.9% decline in sperm motility ... increase in sperm with abnormal morphology Asthenozoospermia - reduced sperm motility Necrozoospermia - all sperm in the ... which is associated with sperm DNA damage and reduced sperm motility. A hormone-antioxidant combination may improve sperm count ...

https://en.wikipedia.org/wiki/Male_infertility

The tails of normal sperm will swell when exposed to this solution, whereas damaged sperm with low motility will not swell ... The effects of dietary selenium on sperm motility in healthy men. J. Androl. 22: 764-771, 2001 , Mahadevan U, Terdiman J, Aron ... In early research in this area, Turek tried to understand more about how sperm "viability" relates to "motility." Subsequently ... In men with no sperm count (azoospermia), it soon became clear that sperm could be found in the testes and used with ICSI, but ...

https://en.wikipedia.org/wiki/Paul_J._Turek

Sperm DNA fragmentation level is higher in men with sperm motility defects (asthenozoospermia) than in men with oligozoospermia ... Furthermore, the supplementation with DHA in humans has been reported to increase sperm motility. But also, DHA supplementation ... Asthenozoospermia (or asthenospermia) is the medical term for reduced sperm motility. Complete asthenozoospermia, that is, 100 ... found a correlation between the composition of the sperm lipid membrane and the odds of having asthenozoospermia. The sperm ...

https://en.wikipedia.org/wiki/Asthenozoospermia

The encoded protein is localized to the sperm flagellum and may be involved in the regulation of sperm motility. Alternative ... In the conclusion, they state that AKAP4 plays a pivotal role in the fibrous sheath and effect on the motility of sperm, in the ... "Localization of AKAP4 and tubulin proteins in sperm with reduced motility". Asian Journal of Andrology. 9 (5): 641-9. doi: ... "Targeted disruption of the Akap4 gene causes defects in sperm flagellum and motility". Developmental Biology. 248 (2): 331-42. ...

https://en.wikipedia.org/wiki/AKAP4

It is the key player in the motility machinery of nematodes that propels the crawling movement/motility of nematode sperm. It ... "A Ser/Thr kinase required for membrane-associated assembly of the major sperm protein motility apparatus in the amoeboid sperm ... which corresponds to the crawling locomotion of nematode sperm. Nematode sperm motility is based on a push-pull mechanism which ... "Dissection of the Ascaris sperm motility machinery identifies key proteins involved in major sperm protein-based amoeboid ...

https://en.wikipedia.org/wiki/Major_sperm_protein

Her early work looked at mechanisms of sperm motility following intercourse. She also published findings about sexual ... Fordney-Settlage DS (1981). A review of cervical mucus and sperm interactions in humans. Int J Fertil. 1981;26(3):161-9. Lief ... Fordney Settlage DS, Motoshima M, Tredway, DR (1973). Sperm transport from the external cervical os to the Fallopian tubes in ... Effect of intrauterine devices on sperm transport in the human being: preliminary report. Am J Obstet Gynecol. 1975 Dec 1;123(7 ...

https://en.wikipedia.org/wiki/Diane_Fordney

2. Sperm cell DNA fragmentation In an average male, less than 4% of his sperm cells will contain fragmented DNA. However, ... There is a negative correlation between the percentage of DNA fragmentation and the motility, morphology, and concentration of ... There is also a negative association between the percentage of sperm that contain fragmented DNA and the fertilization rate and ... "Detection of Deoxyribonucleic Acid Fragmentation in Human Sperm: Correlation with Fertilization in Vitro." Biology of ...

https://en.wikipedia.org/wiki/Fragmentation_(cell_biology)

These persist until the end of sperm differentiation when individual sperm are released into the seminiferous tubule lumen. The ... and restrict the motility of germ cells. In the mouse, germ cell nest breakdown occurs just after birth, and in humans, this ... Developing sperm carrying a Y chromosome can be supplied with essential proteins encoded by genes on the X chromosome. de ... These spermatids then undergo differentiation into mature sperm. In these developing male germ cells, they undergo incomplete ...

https://en.wikipedia.org/wiki/Germ_cell_nest

Abnormalities in sperm array were found in very few individuals during their larval stage, meaning that disruptions in ... as well as possibly underestimating actual degrees of sterility caused by inaccurate measures of motility.[citation needed] ...

https://en.wikipedia.org/wiki/Drosophila_hybrid_sterility

Sperm bundles of around 100 each appear to confer increased sperm motility, which may provide the potential for sperm ... Johnston, S.D.; Smith, B.; Pyne, M.; Stenzel, D.; Holt, W.V. (2007). "One-Sided Ejaculation of Echidna Sperm Bundles ( ... Weak identity between chromosomes results in meiotic pairing that yields only two possible genotypes of sperm, X1X2X3X4X5 or ... "Adaptations of the short-beaked echidna Tachyglossus aculateus for sperm production, particularly in an arid environment" (PDF ...

https://en.wikipedia.org/wiki/Short-beaked_echidna

"Sperm-associated antigen 1 is expressed early in pancreatic tumorigenesis and promotes motility of cancer cells". Oncogene. 26 ... Sperm-associated antigen 1 is a protein that in humans is encoded by the SPAG1 gene. The correlation of anti-sperm antibodies ... "Entrez Gene: SPAG1 sperm associated antigen 1". Diekman AB, Herr JC (January 1997). "Sperm antigens and their use in the ... Liu N, Qiao Y, Cai C, Lin W, Zhang J, Miao S, Zong S, Koide SS, Wang L (May 2006). "A sperm component, HSD-3.8 (SPAG1), ...

https://en.wikipedia.org/wiki/Sperm-associated_antigen_1

... as the efficiency of the sperm does not differ significantly in terms of sperm number, size, motility, and longevity between ... 2015). "Sperm competition and the evolution of precopulatory weapons: Increasing male density promotes sperm competition and ... This is attributed to extensive levels of sperm competition. The males of this species tend to have an arm girth that is ... This would indicate that there would be increased investment in testes mass and sperm production, which is supported by the ...

https://en.wikipedia.org/wiki/Quacking_frog

... a goal made difficult because of Evan's low sperm count and motility, culminating in Season 8 in an in vitro fertilisation that ...

https://en.wikipedia.org/wiki/List_of_Royal_Pains_characters

The damage that heat can pose on sperm production are associated with a reduction in sperm motility, an increase in sperm DNA ... In the developed world, the temporal trend for the reduction in sperm parameters (sperm count, motility, morphology, volume, ... has shown to decrease male fertility resulting in a decrease in sperm parameters such as sperm density, total sperm count, and ... and far fewer motile sperm than men of lower weight. Sperm with high amounts of damaged DNA are significantly more common in ...

https://en.wikipedia.org/wiki/Obesity_and_fertility

... including a larger number of motile sperm and higher sperm motility. Research has also demonstrated that evolutionary ... Sperm competition has caused the human penis to evolve in length and size for sperm retention and displacement. To achieve this ... Sperm are produced in the testes and stored in the attached epididymis. During ejaculation, sperm are propelled up the vas ... Sperm competition is where the sperm of two males simultaneously resides within the reproductive tract of a female and they ...

https://en.wikipedia.org/wiki/Human_penis

Men with sperm motility defects often have high levels of sperm DNA fragmentation. The degree of DNA fragmentation in sperm ... The sperm chromatin dispersion test (SCD) and TUNEL assay are both effective in detecting sperm DNA damage. Using bright-field ... "Which isolated sperm abnormality is most related to sperm DNA damage in men presenting for infertility evaluation". J. Assist. ... "Measurement of sperm DNA fragmentation using bright-field microscopy: comparison between sperm chromatin dispersion test and ...

https://en.wikipedia.org/wiki/DNA_fragmentation

In men with secondary hypogonadotropic hypogonadism, this improves testosterone levels and sperm motility. Men with secondary ... and thus to produce both testosterone and sperm in the testes, this drug may prove itself superior to other treatments." ... "Oral enclomiphene citrate stimulates the endogenous production of testosterone and sperm counts in men with low testosterone: ...

https://en.wikipedia.org/wiki/Enclomifene

In salmon, a decrease of potassium in fresh water will initiate the motility of the sperm. A decrease in osmolality after ... If sperm is released too early, it can become too dilute or die before it ever reaches the eggs. If sperm is released too late ... Sperm chemotaxis is the use of chemical signals to give sperm the ability to navigate an egg and is a huge contributor to ... The success of a male fertilizing an egg relies on the ability of a male's sperm to outcompete other sperm that is looking to ...

https://en.wikipedia.org/wiki/External_fertilization

... and it is required for sperm motility and male fertility. C12orf50 has been predicted to undergo various phosphorylation, c- ...

https://en.wikipedia.org/wiki/C12orf50

The DNAI1 gene is involved in the development of proper respiratory function, motility of spermatozoa, and asymmetrical ... 2003). "Phosphoproteome analysis of capacitated human sperm - Evidence of tyrosine phosphorylation of a kinase-anchoring ...

https://en.wikipedia.org/wiki/DNAI1

Yakirevich E, Naot Y (April 2000). "Cloning of a glucose phosphate isomerase/neuroleukin-like sperm antigen involved in sperm ... Kho DH, Nangia-Makker P, Balan V, Hogan V, Tait L, Wang Y, Raz A (February 2013). "Autocrine motility factor promotes HER2 ... The encoded protein is also referred to as autocrine motility factor (AMF) based on an additional function as a tumor-secreted ... Liotta LA, Mandler R, Murano G, Katz DA, Gordon RK, Chiang PK, Schiffmann E (May 1986). "Tumor cell autocrine motility factor ...

https://en.wikipedia.org/wiki/Glucose-6-phosphate_isomerase

Due to the increased metabolic activity of the sperm compared to the egg, due to its motility, there is greater production of ... Izumo is the sperm cell signal, that will trigger the egg receptor Juno. This receptor is activated by the sperm binding and a ... diffuses from the sperm into the egg cytosol upon sperm-oocyte fusion. The results of this interaction could activate a signal ... After contact with sperm, an influx of sodium ions increases the potential up to +20mV. The slow block is through a biochemical ...

https://en.wikipedia.org/wiki/Oocyte_activation

... gene is "specifically required during spermatogenesis for flagellum morphogenesis and sperm motility and may be ...

https://en.wikipedia.org/wiki/CFAP157

This device allows for the separation of semen samples in relation to sperm morphology, motility, progressive motility, speed, ... Assisted reproductive technology Infertility Fertility monitor Artificial insemination Sperm donation Sperm bank Sperm theft ... by private sperm donors or sperm donors donating through an agency. A sperm agency will generally supply the male collection ... Where a donor is being used, timing is particularly important because donor sperm which is supplied by a sperm bank or a ...

https://en.wikipedia.org/wiki/Conception_device

When sperm is emitted, it is transmitted from the vas deferens into the male urethra via the ejaculatory ducts, which lie ... those in prostatic fluid have better motility, longer survival, and better protection of genetic material. Disorders of the ... The prostatic fluid is expelled in the first part of ejaculate, together with most of the sperm, because of the action of ... The alkalinity of semen helps neutralize the acidity of the vaginal tract, prolonging the lifespan of sperm. ...

https://en.wikipedia.org/wiki/Prostate

... reduced sperm counts and motility during the 2000s. A 2012 paper published by French researchers and Yeshiva University's ... In a 2017 Hebrew University meta-analysis, decreases in sperm concentration of up to 52.4 percent and 59.3 percent in sperm ... One of the earliest studies, published in 1974, noted a reduction in sperm quality (lower sperm concentration and semen volume ... had worse sperm quality than the other three popular diets. The men eating a "Western" diet had sperm counts of 109 million to ...

https://en.wikipedia.org/wiki/Male_infertility_crisis

There are deficits in sperm motility, an increased incidence of sperm defects (specifically, sperm heads separated from the ... The sperm count of the patient was normal (25 million/mL; normal, >20 million/mL), but his sperm viability was low (18%; normal ... Males can produce viable sperm, but there are severe deficits in both spermatogenesis and sperm function, the latter rendering ... Sperm counts are significantly reduced, at 55% of those of normal mice, and further diminish with age, at 13% of those of ...

https://en.wikipedia.org/wiki/Estrogen_insensitivity_syndrome

... which reduced sperm motility. In attempt to explain the cellular basis of defective sperm function association in a 1987 paper ... This project seeks to increase the collection of vital, stable sperm during the crucial early stages of the IVF process. 1986- ... Aitken, R. John; Jones, Keith T.; Robertson, Sarah A. (2012). "Reactive Oxygen Species and Sperm Function-In Sickness and In ... The hyperactive production of ROS causes peroxidative damage to the sperm plasma membrane, which is known as oxidative stress, ...

https://en.wikipedia.org/wiki/John_Aitken_(biologist)

Solem, J. C. (1994). "The motility of microrobots". In Langton, C. (ed.). Artificial Life III: Proceedings of the Workshop on ... "Sperm-Hybrid Micromotor for Targeted Drug Delivery". ACS Nano. 12 (1): 327-337. doi:10.1021/acsnano.7b06398. PMID 29202221. ... "Chemotactic Guidance of Synthetic Organic/Inorganic Payloads Functionalized Sperm Micromotors". Advanced Biosystems. 2. doi: ...

https://en.wikipedia.org/wiki/Microbotics

Nevertheless, genes involved in chemotaxis and motility that are thought to be useful only outside the host are retained in the ... An additional advantage to symbiosis is that the male's sperm can be used in multiple fertilizations, as he always remains ... and provides sperm to the female in return. After fusing, males increase in volume and become much larger relative to free- ...

https://en.wikipedia.org/wiki/Anglerfish

General health Semen analysis for: Sperm count Morphology Motility Acrosome activity may also be tested Screening for ... In addition, sperm banks may try to ensure that the sperm used in a particular recipient woman comes from a donor whose blood ... For this reason, sperm from rhesus negative sperm donors is often in great demand, particularly those with the O negative blood ... In sperm banks, screening of potential sperm donors typically includes screening for genetic diseases, chromosomal ...

https://en.wikipedia.org/wiki/Screening_of_potential_sperm_bank_donors

... possess an apical hook which is used to attach to other spermatozoa to form mobile trains that enhance motility through the ... it has been found that increased sperm competition can lead to evolved larger sperm numbers, sperm cell sizes, and sperm ... This type of sperm specialization became known popularly as "kamikaze sperm" or "killer sperm", but most follow-up studies to ... Other evidence suggests no link between sperm competition and sperm hook morphology. Selection to produce more sperm can also ...

https://en.wikipedia.org/wiki/Sperm_competition

Beckman, M. (2003) "Sperm like it hot". Science online (Science doi: 10.1126/article.35558). Pearson, H. (2003) "Sperm like it ... Eisenbach's group also revealed a major function of the motility type termed hyperactivation (a vigorous motility type, ... This opened the research field of mammalian sperm navigation (also termed sperm guidance). He demonstrated that the active ... Eisenbach, M. (1999) "Sperm chemotaxis". Rev. Reprod. 4, 56-66. Cohen-Dayag, A., Ralt, D., Tur-Kaspa, I., Manor, M., Makler, A ...

https://en.wikipedia.org/wiki/Michael_Eisenbach

What Is Sperm Motility?. The term "sperm motility" refers to movement of the sperm, according to Amin Herati, M.D., director of ... Sperm Motility?. According to the WHOs reference values, sperm motility is considered low when total motility is less than 42 ... Treatments for Low Sperm Motility. There are treatments for low sperm motility, according to Dr. Roskin. "Intrauterine ... Expert-Backed Tips for Boosting Sperm Motility. There are lifestyle changes you can make that can help boost sperm motility:. ...

https://www.forbes.com/health/family/sperm-motility/

Pomegranate may improve sperm motility in sub-fertile men - Pomegranate and Sperm Motility - Infertility at BellaOnline ... and to increase sperm counts, sperm motility and multiple measures of sperm quality in animal studies (1,2). And finally, ... and sperm motility increased by a total of 62%. Treatment did not influence sperm morphology. "Our findings may help sub- ... Epub 2011 Mar 21.Effect of Punica granatum (pomegranate) on sperm production in male rats treated with lead acetate. Leiva KP1 ...

http://www.bellaonline.com/articles/art303523.asp

Personer med emneord «Sperm motility» Navn. Telefon. E-post. Emneord. Jahnsen, Tore Professor +47 22851061 [email protected] ...

https://www.med.uio.no/?vrtx=tags&tag=Sperm%20motility&resource-type=person&sorting=resource%3Asurname%3Aasc&sorting=resource%3AfirstName%3Aasc

At IVF1, sperm motility is accurately evaluated by computer assisted semen analysis ... Sperm motility is an important test in the evaluation of male fertility. ... Overall motility-Percent of sperm showing any movement. *Rapid motility-Percent of sperm traveling at a speed of 25 um/sec or ... Semen analysis and sperm motility. The determination of the number of sperm that are moving rapidly in a forward progressive ...

https://www.ivf1.com/sperm-motility/

Increase sperm motility with this key blend of vitamins, antioxidants, and herbs. Includes L-carnitine, vitamin B12, and ... Can I Take MotilityBoost if I Have a Normal Sperm Motility? All men - regardless of their count or motility - can derive ... MotilityBoost helps to support sperm motility, while CountBoost helps to support sperm count! ... Motility Boost Gives An Extra Boost to Your Sperm Health. *NATURAL FERTILITY AID with Vitamins, Herbs, and Antioxidants ...

https://www.fairhavenhealth.com/motilityboost/comment-page-5/?comments_filter=comment_type%3Dreview%26rating%3D3

LOW SPERM COUNT , LOW SPERM MOTILITY , OLIGOSPERMIA TREATMENT View article disclaimer and terms Tags: low spem count ... LOW SPERM COUSE , LOW SPERM COUNT SYMPTOMS , LOW MOTILITY AND OLIGOSPERMA HOMEOPATHY TREATMENT ... All of these subtle but critical factors impact the quality of your eggs and sperm, affecting your ability to conceive and the ...

http://www.worldwidehealth.com/health-article-LOW-SPERM-COUNT-LOW-SPERM-MOTILITY-OLIGOSPERMIA-TREATMENT.html

He was tablets to increase sperm count and motility Viagra Pill also an tablets to increase sperm count and motility Free ... However, Liu tablets to increase sperm count and motility Top Ten Sex Pills Boyi tablets to increase sperm count and motility ... tablets to increase sperm count and motility Best Sex Pills but he still tablets to increase sperm count and motility Best Man ... tablets to increase sperm count and motility That Really Work the tablets to increase sperm count and motility Free Sample ...

https://www.health.go.ug/male_sexual-health/do-penis-enlargement-work/

Sperm concentration, motility, and morphology. The most common causes of male infertility are low sperm production, abnormal ... sperm function, or problems that affect sperm transport. Infertile men have oligospermia (low sperm concentrations compared ... and radiation can adversely affect sperm production and/or sperm function. ... with reference ranges) or azoospermia (the absence of motile sperm in semen)Illness, infection, injury, chronic medical ...

https://www.hillandponton.com/disease/abnormal-sperm-morphology-motility-and-sperm-count/

Low sperm motility is assessed as part of a semen analysis test. A semen analysis test is a procedure that assesses sperm count ... Even if you might suspect low sperm count or low sperm motility, your doctor will want to evaluate your partner to rule out ... When evaluating sperm motility, sperm are either considered non-motile, non-progressively motile, or progressively motile. A ... If efficient sperm comprises less than 32 percent (in a given sperm sample), your doctor may diagnose you with low sperm ...

https://www.acy.org/how-to-determine-if-you-have-low-sperm-motility/

Effect of Methanol extract of Kigelia africana on Sperm Motility and Fertility in Rats * K. A. OGBECHE Department of ... The research revealed that male rats treated with the methanol extract of the fruit showed greater sperm motility 95.14 ± 1.35 ...

https://www.ajol.info/index.php/njhbs/article/view/11467

Sperm motility is important for fertilization. Sperm flagellar motility is regulated by several mechanisms through a motility ... A)Trajectories of sperm motility are shown with and without eggs. (B)Percentages of sperm motility. (C) Swimming speed. Other ... A)Trajectories of sperm motility are shown with and without eggs. (B)Percentages of sperm motility. (C) Swimming speed. Other ... sperm motility was initiated in ASW when sperm came to about 150-300 μ m from the egg surface. At first, sperm swam in circular ...

https://journals.biologists.com/jeb/article/209/22/4574/16304/Eggs-regulate-sperm-flagellar-motility-initiation

... its time we break down exactly what low motility means and if theres any way to combat it. ... There are several aspects of sperm that contribute to male fertility including sperm motility, sperm count, and sperm ... Lets focus on sperm motility, which refers to sperm movement, and can mean sperm moves normally, minimally, or not at all. ... Its ideal if at least 40% of sperm are moving.. What causes low motility?. Many cases of low motility are unexplained, but ...

https://natalist.com/blogs/learn/what-does-low-sperm-motility-mean

Movement characteristics of human sperm during motility.. Authors: Osathanondh, V. Chinsomboon, S. Nattharit, P. Sudsam-Ang, A ... Osathanondh V, Chinsomboon S, Nattharit P, Sudsam-Ang A. Movement characteristics of human sperm during motility. Journal of ...

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Often times men who chew tobacco or smoke have low sperm counts and poor sperm motility both of which can reduce the chance of ... Poor sperm motility. Marijuana use affects fertility in women because small amounts of THC are secreted into the reproductive ... Sperm that come into contact with this THC can become over stimulated. ... than six alcoholic beverages per day are more likely to suffer from hormonal imbalances which affect both the making of sperm ...

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Oligozoospermic patients recovered sperm concentration significantly, but sperm motility was not restored to normal levels in ... pruriens increased sperm concentration and motility in all the infertile study groups. ... Oligozoospermic patients recovered sperm concentration significantly, but sperm motility was not restored to normal levels in ... Conclusion(s): Treatment with M. pruriens increased sperm concentration and motility in all the infertile study groups. ...

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Samples were thawed for 30 seconds in a water bath at T1 36 °C, T2 38 °C or T3 40 °C. Sperm motility and kinematics, morphology ... T2 and T3 showed better results for sperm motility and kinematic parameters, SMI (%) (T1 41.9 ± 2.3; T2 45.7 ± 1.9; T3 47.4 ± ... Influence of thawing temperature on sperm motility, structure, and metabolism of frozen bovine semen / Influência da ... Influence of thawing temperature on sperm motility, structure, and metabolism of frozen bo ...

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You can increase sperm motility by exercising regularly. (thenaturehill.com)
Testosterone cypionate india pharmacy, does proviron increase sperm motility These trusted information partners have more on this topic. (hillpcs.org)
Shukra Shakti Tablets to increase sperm motility and sperm count. (all-herbal-supplements.com)
Apart from the ways listed above, the use of herbal alternatives for boosting the sexual desire, increase sperm motility and increasing blood flow to the genital organs is a great way to get rid of male infertility. (all-herbal-supplements.com)

However, motility isn't the only factor taken into account when analyzing healthy sperm: Sperm count, morphology (shape) and concentration are considered as well. (forbes.com)
Sperm concentration, motility, and morphology. (hillandponton.com)
Treatment with M. pruriens increased sperm concentration and motility in all the infertile study groups. (nih.gov)
Oligozoospermic patients recovered sperm concentration significantly, but sperm motility was not restored to normal levels in asthenozoospermic men. (nih.gov)
Infertility in men can result from deficiencies in sperm formation, concentration, or transportation. (medscape.com)
Infertile men may have deficiencies in sperm formation, concentration (eg, oligospermia [too few sperm], azoospermia [no sperm in the ejaculate]), or transportation. (medscape.com)
Sperm concentration and motility were measured using computer-assisted sperm analysis. (cdc.gov)
PGF2α and the PG mixture at 25 μM concentration significantly stimulated sperm velocity by 28% and 38%, whereas 8-isoPGF2α and 5iPF2 VI reduced the velocity by 21% and 30%, respectively, compared to vehicle control. (uab.edu)
Semen was diluted in extender to a final concentration of 300 million sperm/ml in 1.5 ml tubes, and cooled to 4° C over a 2 to 3 h period. (usda.gov)
Like whether or not the authors controlled for exercise, age, smoking, and other factors that affect sperm concentration. (theveganrd.com)
They also proposed that the higher soy content of vegetarian diets might have an effect on sperm concentration. (theveganrd.com)
In fact, one case report found that isoflavone supplements improved sperm concentration in a man seeking treatment for infertility. (theveganrd.com)
Decreased sperm concentration and motility in a subpopulation of vegetarian males at a designated blue zone geographic region. (theveganrd.com)
Seminal plasma cobalamin significantly correlates with sperm concentration in men undergoing IVF or ICSI procedures. (theveganrd.com)
Both sperm concentration and motility were lower, and the amount of immotile sperm was higher, among men who reported increased use of these devices at night. (medscape.com)
Sperm Concentration, Motility Reduced, but Did Study End Too Soon? (medscape.com)
According to an analysis of several studies, Coenzyme Q10 (CoQ10) significantly increases sperm concentration and motility . (azfertility.com)

Sperm morphology and motility were examined. (cdc.gov)
It improves sperm count and enhances sperm morphology and motility. (ayurshakha.com)
Genetic makeup also plays an important role in sperm morphology and motility, so researchers also examine these things by keeping this point in mind. (procana.com)

The term "sperm motility" refers to movement of the sperm, according to Amin Herati, M.D., director of male infertility and men's health and an assistant professor of urology at Johns Hopkins Medicine in Baltimore. (forbes.com)
The most common causes of male infertility are low sperm production, abnormal sperm function, or problems that affect sperm transport. (hillandponton.com)
Infertile men have oligospermia (low sperm concentrations compared with reference ranges) or azoospermia (the absence of motile sperm in semen)Illness, infection, injury, chronic medical conditions, hormonal disorders, genetic disorders, and lifestyle choices (e.g., heavy alcohol use, smoking, or illicit drug use) also may contribute to male infertility. (hillandponton.com)
Our focus of this article is on low sperm motility as a factor in male factor infertility. (acy.org)
While there may be multiple underlying causes or complicating factors, male infertility is often caused by poor sperm morphology, decreased sperm count, suboptimal sperm motility, or some combination of the three concerns. (cytomatrix.ca)
Normal Sperm motility refers to the ability of the sperm to move efficiently and low sperm motility is a factor that leads to infertility in men. (thenaturehill.com)
With men's sperm counts falling, with miscarriage, infertility, and ovarian cancer rates going up, the beleaguered populations of the world must stand and say, "Never Again! (vaccineinjurynews.com)
A man's own lifestyle, habits and even the environment he is exposed to may lead to a low or abnormal rate of sperm production which invariably is linked to male infertility. (all-herbal-supplements.com)
The loss of another gene, CATSPER2 , in the same region of chromosome 15 is responsible for the sperm abnormalities and infertility in affected males. (medlineplus.gov)
Indications for performing a postcoital test include semen hyperviscosity, increased or decreased semen volume with good sperm density, or unexplained infertility. (medscape.com)
Testicular biopsy is indicated in azoospermic men with a normal-sized testis and normal findings on hormonal studies to evaluate for ductal obstruction, to further evaluate idiopathic infertility, and to retrieve sperm. (medscape.com)
Some research suggests that up to 90 percent of male infertility issues result from abnormal sperm counts. (alternative-medicine-doctors.com)
I am diagnosed with male infertility(oligospermia),with low sperm count (10) and low motility. (yogawiz.com)
Sterility, also called infertility , refers to an inability to produce or release sperm. (healthline.com)
A man's infertility can be due to problems producing or releasing sperm. (healthline.com)
Cadmium concentrations in blood and seminal plasma: correlations with sperm number and motility in three male populations (infertility patients, artificial insemination donors, and unselected volunteers). (cdc.gov)
Therefore, when treating infertility, it is necessary that the male partner receive a sperm analysis. (acupunctureoakville.com)
The findings may lead to new approaches for male contraception and treatments for infertility that result from problems with sperm mobility. (medlineplus.gov)
Sperm function and motility can play a role in infertility. (azfertility.com)
The study aimed to determine the prevalence of chlamydial infection and its association with sperm quality parameters among a symptomatic men that present for infertility treatment in a Nigeria facility. (bvsalud.org)

Since sperm regenerates every 68-72 days, there are ways to improve sperm parameters over time. (natalist.com)
Perhaps more important than what you can do to improve sperm health is what you should be avoiding. (natalist.com)
A powdered blend of evidence-based nutrients to improve sperm motility, morphology and count, supporting optimal male fertility. (cytomatrix.ca)
However, this may also explain why a number of reviews and metaanalyses have definitively demonstrated the ability for antioxidants and mitochondrial nutrients to not only improve sperm parameters, but also increase live birth rates and pregnancy rates in subfertile couples. (cytomatrix.ca)
These solutions are simple, easy-to-implement lifestyle changes that aim to improve sperm motility, thus increasing your chances of obtaining a viable pregnancy. (laivfclinic.com)
That's right, you can improve sperm motility just by changing, or adding to, your diet. (laivfclinic.com)
Depending on your unique situation, different supplementation with vitamins and antioxidants may be able to address your needs and improve sperm motility. (laivfclinic.com)
Can you please suggest me yoga poses to improve sperm count and motility? (yogawiz.com)
8. Improve sperm count, motility, morphology. (acupunctureoakville.com)
But for you to get it right, you want to get your self a answer that offers a herbal treatment that helps to improve sperm fitness as nicely as your testosterone levels. (lakevillelocals.com)
Semenoll complement is a herbal dietary combination that makes use of gorgeous energetic elements that are of herbal beginning to improve sperm fitness in men. (lakevillelocals.com)

A metaanalysis of 20 studies found that zinc concentrations in seminal plasma were significantly lower in infertile males and that supplementation is capable of increasing semen volume, while also improving sperm motility and morphology. (cytomatrix.ca)
Research has shown that there are significantly lower D-AA levels in infertile men, and similar research supports that D-AA supplements are capable of increasing levels of testosterone, thus improving motility. (laivfclinic.com)
that have decreased movement (motility), causing affected males to be infertile. (medlineplus.gov)
In reality, one find out about player had such antibodies connected to over 40% of his sperm, which will have rendered him infertile on the time. (werdumcombatteam.com)
The Centers for Disease Control and Prevention (CDC) advise that a slightly abnormal sperm analysis does not mean that a person is permanently infertile. (alternative-medicine-doctors.com)
ABSTRACT Anti-zona-pellucida autoantibodies (AZP-Ab) and anti-sperm isoantibodies (ASA) were assessed in the cervical secretions from 73 infertile Jordanian women and 41 fertile control women using latex agglutination. (who.int)
Here we show that homozygous male mice with a targeted gene deletion of isoform 4 of the plasma membrane calcium/calmodulin-dependent calcium ATPase (PMCA), which is highly enriched in the sperm tail, are infertile due to severely impaired sperm motility. (uni.lu)

Pomegranate fruit has been demonstrated to stimulate production of sperm - spermatogenesis - and to increase sperm counts, sperm motility and multiple measures of sperm quality in animal studies (1,2). (bellaonline.com)
The lab technician then counts the number of sperms that appear to be motile. (acy.org)
When it comes to selenium , not only is it beneficial for sperm parameters when combined with other antioxidants like zinc and CoQ10, but solo supplementation of 100mcg or more per day over 3 months shows benefit for sperm counts and motility. (cytomatrix.ca)
The complex case is, especially, when sperms collide or cover each other in the situation of large sperm counts appears in one microscope field of view. (ijmlc.org)
Often times men who chew tobacco or smoke have low sperm counts and poor sperm motility both of which can reduce the chance of conceiving. (orchidrecoverycenter.com)
A find out about simply revealed within the magazine Fertility and Sterility discovered that males have been experiencing decrease sperm motility and decrease sperm counts over two months after having had Covid-19 coronavirus infections. (werdumcombatteam.com)
Less men will at some point achieve motile sperm counts and also the time to achieve motile sperm matters is longer. (micro-vas-reversals.com)

The direction of the sperm's movement matters too: Some sperm swim in small circles, while others swim in a straight line or large circles-this is referred to as "progressive motility. (forbes.com)
Sperm with progressive motility are most likely to result in fertilization. (forbes.com)
There were inverse associations between percent apoptosis and sperm motility ( P 5 .0025), progressive motility ( P 5 .0051), and morphology with a normal or good pattern of fertilization by Kruger strict criteria ( P 5 .0045), and a positive relationship between percent apoptosis and sperm tail defects ( P 5 .0053). (cdc.gov)
Preliminary studies found that progressive motility of ram sperm declined ~75% when stored at 4° C for 24 h, and continued to decline over time when using extenders supplemented with 5% egg yolk. (usda.gov)
The current study evaluated the effects of different combinations of extenders, ethylene glycol (EG), egg yolk and penicillamine, hypotaurine and epinephrine on ram sperm progressive motility during storage. (usda.gov)
Initially, sperm progressive motility averaged 41 ± 6.2% across treatments. (usda.gov)
Over time and across treatment combinations, mean progressive motility was maintained to a greater extent (P (usda.gov)
Across extenders, progressive motility of sperm was similar (P = 0.50) for 5 and 20% egg yolk (22.2 ± 1.4 vs. 24.4 ± 1.4). (usda.gov)
Results indicate that milk extender supplemented with 1% EG, PHE and either 5 or 20% egg yolk is capable of maintaining progressive motility of ram semen at ~60% of its initial value when stored at 4° C for up to 72 h. (usda.gov)
26.3% with non-progressive motility had Chlamydia, compared with 2.8% men who were not infected. (bvsalud.org)

Abnormal sperm shape/size iv. (in.net)
Hereditary haemochromatosis gene (HFE) H63D mutation shows an association with abnormal sperm motility. (cdc.gov)

A 2021 systematic review of 24 trials found that Coenzyme Q10 doses of 100-400mg/day led to consistent improvements in sperm motility, morphology and count, seminal antioxidant activity and pregnancy rates. (cytomatrix.ca)

A smart phone carrying out a voice call over WiFi, has been shown to negatively affect sperm motility and viability in semen in the laboratory. (ivf.net)
Does CBD Affect Sperm Motility? (procana.com)

Designed to be taken with FertilAid for Men - gives an extra boost for men looking to support healthy sperm motility. (fairhavenhealth.com)
Enjoy healthy sperm motility and strength to improve fertility. (altervega.com)

One study determined that supplementation with this important trace element improves sperm count, sperm motility, and sperm quality in men. (azfertility.com)
Other ingredients in Semenax include fenugreek, which improves sperm count and motility. (effinghamfamilypromise.org)

Formulated to provide the nutrients most well-known to positively impact sperm motility. (fairhavenhealth.com)
Many cases of low motility are unexplained, but damage to the testicles, drug use, and certain conditions can impact sperm quality. (natalist.com)
This study shows how a healthy BMI can significantly impact sperm motility. (natalist.com)
Some types of dairy foods may negatively impact sperm parameters, too(9). (theveganrd.com)
According to this study, if you have been using cannabis in the past but left it late, it can still negatively impact sperm functions. (procana.com)

To delineate the Cox-independent prostaglandin pathways and evaluate their role in sperm motility in C. elegans, we developed a novel biochemical method for the rapid production of F-series PGs using arachidonic acid as the substrate and worm lysate as source of enzyme(s). (uab.edu)

In an average semen analysis, there will be some sperm with no movement, some that are moving slowly and/or some that do not move in a forward direction. (ivf1.com)
With computerized semen analysis, the computer identifies and tracks every sperm seen in under the microscopic field. (ivf1.com)
Low sperm motility is assessed as part of a semen analysis test. (acy.org)
A semen analysis test is a procedure that assesses sperm count, motility, morphology, amongst others. (acy.org)
You can determine your sperm count by doing a semen analysis. (thenaturehill.com)

Treatment with M. pruriens significantly inhibited lipid peroxidation, elevated spermatogenesis, and improved sperm motility. (nih.gov)
These tablets when used regularly are responsible for significantly increasing the sperm count as well as improving the quality of semen produced in a male. (all-herbal-supplements.com)
Maciej, 27 years old, I have been using Semaxin for a long time, the quality of my sperm has improved significantly, the amount of sperm has increased, which was extremely significant for us, because my wife and I tried for a baby and finally succeeded! (activemodepotency.com)

Low motility can reduce the sperm's capacity to move through the female reproductive system to fertilize the egg. (alternative-medicine-doctors.com)
Having a pH that is too high (alkaline) or too low (acidic) may affect the health of the sperm and their ability to move through the female reproductive tract. (alternative-medicine-doctors.com)
The fluid in a woman's reproductive tract has all of the nutrients that sperm need for their survival during that time. (medicalnewstoday.com)
Once inside the female reproductive tract, the sperm cells must swim through the cervix and into the uterus to reach the fallopian tubes and female egg. (medicalnewstoday.com)
However, if a couple were having intercourse in the water, pregnancy would be just as likely because the sperm would enter directly into the female reproductive tract. (medicalnewstoday.com)
A conference abstract (not a published paper) presented at the American Society for Reproductive Medicine 2022 meeting , looks at the effect of electromagnetic radiation (EMR) emitted by cell phones on sperm. (onlgk.xyz)
Inside the female reproductive tract, sperm use their tail-like appendages to swim for the egg. (medlineplus.gov)

An obvious sign of low sperm motility is failure to conceive a child. (acy.org)
though, while low motility makes it more difficult to conceive, it does not mean it's impossible. (laivfclinic.com)
Aside from improving your overall health, implementing a healthy lifestyle with regular exercise can reduce stress levels, up your testosterone and help get the sperm moving when you're trying to conceive. (laivfclinic.com)
Also known as the Huhner test, PCT evaluates the interaction between sperm and cervical mucus which is essential to conceive a child. (portea.com)

To achieve fertilization, sperm have to be able to "swim" through the cervix, uterus and fallopian tubes. (forbes.com)
Other studies have demonstrated how pomegranate may improve the fertilization capacity of sperm (4) hopefully more studies will follow to rigorously examine the potential of pomegranate for improving male fertility. (bellaonline.com)
Effects of Pomegranate Seed Oil on the Fertilization Potency of Rat's Sperm. (bellaonline.com)
In order to reach the egg for fertilization, sperm have to survive a long and arduous journey through cervical mucus and the cervix, and then up into the fallopian tubes. (fairhavenhealth.com)
However, it is still unclear how sperm meet the eggs of the same species in the presence of many eggs of different species and how eggs guard against the fertilization attempts by sperm of different species. (biologists.com)
Sperm morphology: The most effective sperm shape for fertilization includes a long tail and oval shaped head. (natalist.com)
Considering that sperm flagellar motility is indispensable for transporting the paternal haploid genome for fertilization, fertilization taking place in seawater may decline in the not too distant future. (news-oceanacidification-icc.org)
Hyperactivated sperm motility driven by CatSper2 is required for fertilization. (medlineplus.gov)
Ejaculation is a synchronized cascade of events that has the ultimate goal of activating sperm and enabling them to reach an egg for fertilization. (nih.gov)
It promotes the fertility of sperm and aids in healthy fertilization. (ayurshakha.com)
It is concluded that the addition of synthetic amino acids in the semen of sheep before cryopreservation improves sperm quality and fertilization potential and can thus be added in cryopreservation protocols. (bvsalud.org)

Effects of pomegranate juice consumption on sperm quality, spermatogenic cell density, antioxidant activity and testosterone level in male rats. (bellaonline.com)
The research revealed that male rats treated with the methanol extract of the fruit showed greater sperm motility 95.14 ± 1.35, when compared to that of male rats treated with testosterone and the untreated control rats which had 89.34 ± 1.45 and 82.81 ± 2.51 respectively. (ajol.info)
Fertility Matrix - Sperm Motility Support by Cyto-Matrix is designed to improve all of these sperm parameters, increase testosterone and, ultimately, improve male fertility. (cytomatrix.ca)
Zinc's function in various aspects of male health, including testosterone production, has long been studied and its impact on fertility and sperm health is no different. (cytomatrix.ca)
A deficiency in testosterone is a common culprit of sperm motility, and this deficiency is often associated with being overweight. (laivfclinic.com)
Poor sleep quality reduces testosterone levels, since the hormone replenishes while you sleep, and negatively impacts sperm motility as a result. (laivfclinic.com)
Hormonal imbalances: Imbalances in the hormonal activity can cause low production of testosterone in the body hence interfering with sperm production. (all-herbal-supplements.com)
Advantages you can expect are a strong and long-lasting erection during the whole sex, stronger libido and increased desire for intercourse, increased amount of testosterone produced, stimulation of spermatogenesis, better sperm activity and sperm quality! (activemodepotency.com)

The contaminants were found in higher amounts that can disrupt sperm motility and viability. (medindia.net)
This appears to be a well conducted laboratory study investigating the effects of 4G, 5G and wifi signals on sperm motility and viability in ejaculated human sperm. (onlgk.xyz)
The data shows that sperm-exposure to wifi reduces sperm motility and viability. (onlgk.xyz)

There were no statistically significant differences in sperm count and percent motility between serologically positive and negative men. (bvsalud.org)

D-aspartic acid (D-AA) is a common dietary supplement for men with low sperm motility as it's a type of amino acid that exists naturally in the testicles, semen and sperm cells. (laivfclinic.com)
Undescended testis: When the testicles are unable to descend from the abdomen to the scrotum, the resulting imbalance in temperature may affect the rate of sperm production. (all-herbal-supplements.com)
Typically, millions of sperm cells are produced in the testicles every day. (medicalnewstoday.com)

In this study, we focused on sperm flagellar motility in broadcast spawning reef invertebrates (a coral and a sea cucumber). (news-oceanacidification-icc.org)
Below pH 7.7, the pH predicted to occur within the next 100 years, sperm flagellar motility was seriously impaired in these organisms. (news-oceanacidification-icc.org)
Urgent surveys are necessary for a better understanding of the physiological consequences of ocean acidification on sperm flagellar motility in a wide range of marine invertebrates. (news-oceanacidification-icc.org)
It is measured as the percentage of sperms that are moving, and as the percentage of sperms with productive flagellar motion such as rapid, linear, and forward progression. (bvsalud.org)

IMSEAR at SEARO: Movement characteristics of human sperm during motility. (who.int)
Osathanondh V, Chinsomboon S, Nattharit P, Sudsam-Ang A. Movement characteristics of human sperm during motility. (who.int)
Use of laptop computers connected to internet through Wi-Fi decreases human sperm motility and increases sperm DNA fragmentation. (onlgk.xyz)
The new study was initiated by the researchers to investigate whether a high consumption of sugar affects the RNA fragments in human sperm. (ayushdarpan.org)

As a necessary nutrient for mitochondrial function and ATP energy production, there are dozens of studies on its own or in combination with other nutrients that demonstrate beneficial effects on sperm parameters. (cytomatrix.ca)
While duration of treatments tended to correlate positively with sperm parameters, some studies even found beneficial effects on sperm parameters for up to 12 months after supplementation discontinuation. (cytomatrix.ca)
Led by PhD student Behzad Hajizadeh Maleki, who is currently working at Justus Liebig University Giessen, Germany, researchers say the magnitude of the adverse effects on sperm is related to disease severity, and they acknowledge that the impact does appear to decline over time. (medscape.com)

If efficient sperm comprises less than 32 percent (in a given sperm sample), your doctor may diagnose you with low sperm motility (asthenozoospermia). (acy.org)
one claim states that carnitine improves sperm motility and morphology, along with asthenozoospermia (low motility) and oligoasthenoteratozoospermia (low count, low motility, and poor morphology). (natalist.com)
If it is less than 1 million, this is severe poor sperm motility, this is also known as asthenozoospermia. (thenaturehill.com)

Over a fraction of a second, the path the sperm has traveled is analyzed and many different parameters can then be computed with a high degree of accuracy. (ivf1.com)
There's also data on how CoQ10 improves sperm parameters, including motility. (natalist.com)
A common theme surrounding disrupted sperm parameters is mitochondrial damage as a result of reactive oxygen species from environmental exposures. (cytomatrix.ca)
But the most effective way is to simultaneously track all sperm and calculate the motility parameters of Computer Aided Sperm Analysis (CASA). (ijmlc.org)
Based on those parameters, the sperm motility was categorized and the percentage of motile sperm was calculated. (ijmlc.org)
If the generated path precision is high, then the CASA parameters calculation results will better describe the actual sperm motility conditions. (ijmlc.org)
For one thing, high blood cholesterol levels are linked to poorer sperm and semen parameters, a finding that argues very much in favor of plant-based diets(8). (theveganrd.com)

It can be concluded that the main problem in sperm motility measurement is having a good multisperm tracking to obtain precise sperm paths with an efficient computation on semen with high sperm concentrations. (ijmlc.org)
This week, it's all about how vegan and vegetarian men have low sperm concentrations . (theveganrd.com)
Should you be concerned about the fact that the vegetarians and vegans in this study had sperm concentrations that were lower than those of the meat-eaters? (theveganrd.com)
Finally, while sperm concentrations were lower among the vegetarian groups, they weren't low enough to matter. (theveganrd.com)
This would be a logical explanation if the men weren't supplementing, since vitamin B12 levels are correlated with sperm concentrations(3). (theveganrd.com)
But, while that may sound like a bad thing for male fertility, clinical research shows pretty clearly that consuming soy isoflavones has no effect on sperm concentrations in healthy men(4-6). (theveganrd.com)
And higher intakes of antioxidants-abundant in plant foods, of course-are linked to better sperm concentrations(10). (theveganrd.com)
It also found that regular cannabis smoking was associated with twenty-eight percent lower sperm concentrations and a twenty-nine percent lower total sperm count. (procana.com)
Those men who used cannabis more than once a week with other recreational substances had fifty-two percent lower sperm concentrations and fifty-five percent lower total sperm count. (procana.com)
According to this study, people who had smoked cannabis in the past had higher sperm concentrations than those who had never smoked cannabis. (procana.com)

Too much exposure to mobile phones has been associated with reduced sperm motility. (thenaturehill.com)

Other notable benefits of consuming safed musli include increasing sperm count, improving sperm motility, curing erectile dysfunction and maintaining blood sugar level. (allthearticles.com)

Abstract -Sperm motility is the main criterion in evaluating the quality of semen. (ijmlc.org)

In a find out about of Belgian males, 60% of the find out about members had decrease sperm motilities on moderate … [+] all over the primary month after having Covid-19. (werdumcombatteam.com)
A sperm analysis is one of the first tests that males undergo to look for the reasons for difficulty with conceiving. (alternative-medicine-doctors.com)
In males, the problem with sperm motility could be a genetic. (in.net)
Nearly 80% of these males achieved sperm motility within 3 months of vasectomy reversal. (micro-vas-reversals.com)

For instance, many men who have been diagnosed with low sperm motility may also have low sperm count or poor sperm morphology (the shape of the sperm). (thenaturehill.com)

Semen was evaluated initially and daily for 3 d, using computer assisted sperm analysis. (usda.gov)

Let's focus on sperm motility, which refers to sperm movement, and can mean sperm moves normally, minimally, or not at all. (natalist.com)
Sperm count refers to the number of sperm that are present in 1 ml of semen. (alternative-medicine-doctors.com)
Morphology refers to the size and the shape of the individual sperm. (alternative-medicine-doctors.com)

MotilityBoost offers many of the most well-known ingredients for supporting male fertility and sperm motility, including L-Carnitine, L-Arginine, CoQ10, Vitamin B12, and Quercetin. (fairhavenhealth.com)

Epub 2011 Mar 21.Effect of Punica granatum (pomegranate) on sperm production in male rats treated with lead acetate. (bellaonline.com)
The determination of the number of sperm that are moving rapidly in a forward progressive manner is of paramount importance in the evaluation of male fertility. (ivf1.com)
FertilAid for Men provides a male-targeted daily multivitamin plus fertility-specific ingredients you need for sperm health. (fairhavenhealth.com)
Then, he squatted on the ground and patted his back Come on, climb up, work in the tablets to increase sperm count and motility Best Sex Pills male breast enhancement surgery images human flesh elevator. (health.go.ug)
swag male enhancement wholesale Peng Yu said Why don t we go do penis enlargement work Best Sex Enhancer to Provide The Best tablets to increase sperm count and motility Ye do penis enlargement work That Really Work s house As Ministry of Health do penis enlargement work a rational lawyer, Peng Yu is indeed more sensitive viagra and coke than others. (health.go.ug)
There are several aspects of sperm that contribute to male fertility including sperm motility, sperm count, and sperm morphology, to name a few. (natalist.com)
Second, an Israeli study shows that male vaccine recipients experience significant losses to the "total motile count" of their ejaculated sperm. (vaccineinjurynews.com)
The vaccinated male recipients showed an average sperm count reduction of 22% three months after taking a two-dose series of the covid-19 injection. (vaccineinjurynews.com)
Low sperm production: Poor or inadequate production of sperm in the testes is one of the main reasons that reduces fertility in a male. (all-herbal-supplements.com)
The analysis staff checked the semen samples for 2 primary measures of male fertility: sperm motility and sperm depend. (werdumcombatteam.com)
As this is just one aspect of male fertility, it is important that people see their doctor and get comprehensive sperm analysis to check for other factors affecting their sperm. (alternative-medicine-doctors.com)
Although sperm count, motility, and morphology are three of the main factors that medical professionals will check when assessing male fertility, they are not the only factors. (alternative-medicine-doctors.com)
First, it is important to note that sperm in the male body before ejaculation do not swim. (onlgk.xyz)
A sperm ion channel required for sperm motility and male fertility. (nature.com)
The most common tumors found in the testis include the Sertoli cell tumor, which can cause feminization, attraction of male dogs, loss of libido, alopecia, and decreased sperm number and quality. (dvm360.com)
Plasma membrane Ca2+ ATPase 4 is required for sperm motility and male fertility. (uni.lu)
They are now planning to continue the work and investigate whether there is a link between male fertility and the RNA fragments in sperm. (ayushdarpan.org)
5. Male subjects with female partners of child bearing potential must agree to use condoms and use highly effective method of contraception with female partner for the duration of the study and until 3 months after dosing with the study drug and must refrain from donating sperm for this same period. (who.int)

Normal sperm motility is when your sperm motile count is between the range of 15 million to over 200 million sperm per milliliter (mL). (thenaturehill.com)

This is the percentage of the sperm in a single ejaculate that is moving. (thenaturehill.com)
This is the number of sperm that is swimming in one single ejaculate. (thenaturehill.com)
If this is the case, the first ejaculate of the man will show a poor quality of sperm but the next ejaculate that is collected soon will show better sperm quality than the first. (thenaturehill.com)
In a just recently released record [2] 95% of guys with a vasovasostomy had motile sperm in the ejaculate within 1 year after vasectomy reversal. (micro-vas-reversals.com)

Sperm count: Ideally, ejaculation should contain at least 15 million sperm per milliliter. (natalist.com)
World Health Organization (WHO) guidelines suggest that a normal sperm count is at least 15 million per ml or no fewer than 39 million sperm per sample. (alternative-medicine-doctors.com)

Checking 106 of the find out about members for anti-sperm antibodies of their semen printed IgA variations of such antibodies in 61% of them. (werdumcombatteam.com)

In the present study, changes in motility indices of bester sturgeon spermatozoa were investigated after one year of cryopreservation with two different extenders. (ac.ir)

This means the sperm is not up to the challenge of finding and fertilizing the egg and therefore need some assistance in this process. (proceptin.com)
If it is lower than 5 million, it means the sperm motility is low. (thenaturehill.com)

Sperm cryopreservation has been considered as one of the gamete management strategies for artificial reproduction in sturgeons. (ac.ir)
Bester is a promising fish in sturgeon aquaculture but sperm cryopreservation of this fish had not been studied before. (ac.ir)
Thus, the objective was to evaluate the protective action of the association of the amino acids L-proline (Pro) and L-glutamine (Glu) against the cryoinjury caused to sheep sperm after cryopreservation. (bvsalud.org)

TOCP caused dose dependent decreases in sperm motility, sperm density, and testicular NSE and AChE. (cdc.gov)

Some amino acids can protect mammalian sperm cells against oxidation during thermal stress caused by freezing/thawing. (bvsalud.org)

In this paper, we discuss why sperm motility is an important parameter for assessing sperm quality and compare several multisperm tracking methods along with an analysis of their advantages and disadvantages. (ijmlc.org)
Drugs like cocaine can surely affect sperm quality. (thenaturehill.com)
Normal sperm motility can be affected by the influence of electromagnetic radiation which emits from phones, according to the research done by Igor Gorpinchenko and others on the influence of direct mobile phone radiation on sperm quality. (thenaturehill.com)
In ejaculated semen, the percent sperm apoptosis was associated with several measures of semen quality. (cdc.gov)
This affects all the reported findings - so maybe it is the case that using a phone for voice calls on Wi-Fi can affect sperm quality, or maybe it isn't the case. (onlgk.xyz)
And unfortunately, we can't be reassured, from what's been made available, that using 4G or 5G networks instead of Wi-Fi is safer for sperm quality, or that using a phone case (what sort of case? (onlgk.xyz)
Preliminary results from a small study show an association between increased self-reported exposure to light-emitting media devices in the evening and after bedtime and decline in sperm quality. (medscape.com)
The cervical mucus is then carefully examined under a microscope to assess the quality of the cervical mucus along with the sperm quantity and its motility. (portea.com)
It is a sexual desire for men native that it is a fertility supplement that may be affected in sexual performance, and overall sperm quality. (cnrs.fr)
Both unilateral and bilateral cryptorchidism are associated with a decrease in sperm production and semen quality, regardless of the timing of orchidopexy. (medscape.com)
The study, which has been published in PLOS Biology, gives new insight into the function of sperm, and may in the long term contribute to new diagnostic methods to measure sperm quality. (ayushdarpan.org)
Sperm quality can be harmed by several environmental and lifestyle factors, of which obesity and related diseases, such as type 2 diabetes, are well-known risk factors for poor sperm quality. (ayushdarpan.org)
The sperm quality and other indicators of the participants' health were investigated at the start of the study, after the first week (during which they ate a healthy diet), and after the second week (when the participants had additionally consumed large amounts of sugar). (ayushdarpan.org)
Motility is one of several factors that influence sperm quality, and the fraction of people with low sperm motility in the study corresponded to that in the general population. (ayushdarpan.org)
They will also determine whether the RNA code can be used for new diagnostic methods to measure sperm quality during in vitro fertilisation. (ayushdarpan.org)
The product has a beneficial effect on the quality of sperm and the number of sperm produced, whose good level affects fertility. (activemodepotency.com)
The extract from this herbal root has been used for lots of years to enhance the sexual fitness of guys by way of enhancing sperm quality, semen production, and sexual stamina. (lakevillelocals.com)

What is Normal Sperm Count? (natalist.com)

Anatomy23

Organisms16

Diseases6

Chemicals and Drugs30

Analytical, Diagnostic and Therapeutic Techniques and Equipment18

Psychiatry and Psychology3

Phenomena and Processes29

Technology, Industry, Agriculture3

Information Science3

Health Care3

Maintenance of motility in mouse sperm permeabilized with streptolysin O. (1/2575)

A sialoglycoprotein, gp20, of the human capacitated sperm surface is a homologue of the leukocyte CD52 antigen: analysis of the effect of anti-CD52 monoclonal antibody (CAMPATH-1) on capacitated spermatozoa. (2/2575)

Binding of annexin V to plasma membranes of human spermatozoa: a rapid assay for detection of membrane changes after cryostorage. (3/2575)

Effects of taurine on the motility and intracellular free Ca2+ concentration of fowl spermatozoa in vitro. (4/2575)

Occurrence of prostasome-like membrane vesicles in equine seminal plasma. (5/2575)

Sperm abnormalities and histopathological changes in the testes in Crj:CD(SD)IGS rats. (6/2575)

Inhibition of human sperm motility by specific herbs used in alternative medicine. (7/2575)

Hyperactivated motility of human spermatozoa: a review of physiological function and application in assisted reproduction. (8/2575)

Sperm Motility

Sperm Count

Spermatozoa

Semen

Sperm Capacitation

Sperm Head

Semen Preservation

Infertility, Male

Asthenozoospermia

Sperm Tail

Semen Analysis

Epididymis

Sperm Maturation

Acrosome

Ejaculation

Sperm-Ovum Interactions

Sperm Transport

Gastrointestinal Motility

Fertilization

Fertility

Cryopreservation

Testis

Sperm Midpiece

Acrosome Reaction

Seminal Vesicle Secretory Proteins

Sperm Injections, Intracytoplasmic

Zona Pellucida

Sperm Banks

Oligospermia

Insemination, Artificial

Seminal Plasma Proteins

Cryoprotective Agents

Flagella

Spermatogenesis

Contraceptive Agents, Male

Sperm Immobilizing Agents

Cell Movement

Genitalia, Male

Acinonyx

Antelopes

Sea Urchins

Insemination, Artificial, Homologous

Cervix Mucus

Seminal Vesicles

Ovum

Fertilization in Vitro

alpha-Chlorohydrin

Masturbation

Cattle

Fallopian Tubes

Varicocele

Vasectomy

Reproduction

Testosterone

Comb and Wattles

Povidone

Pentoxifylline

Protamines

Freezing

Spermatocidal Agents

A Kinase Anchor Proteins

Bufo arenarum

Egg Yolk

Esophageal Motility Disorders

Fishes, Poisonous

Pregnancy Rate

Pregnancy

Sperm Whale

Oocytes

Calcium

Movement

Cyclic AMP

Optical Tweezers

Time Factors

Cell Membrane

Carica

Choline Dehydrogenase

Salmonidae

Hypotonic Solutions

Molecular Sequence Data