Testosterone Propionate
Testosterone
Propionates
Androgens
Dihydrotestosterone
Estradiol
Seminal Vesicles
Genitalia, Male
Luteinizing Hormone
Methyltestosterone
Sex Differentiation
Follicle Stimulating Hormone
Testis
Virilism
Cyproterone
Drug Implants
Gonadal Steroid Hormones
Cyproterone Acetate
Aminobiphenyl Compounds
Pituitary Hormone-Releasing Hormones
Prostate
Pituitary Gland
3-Oxo-5-alpha-Steroid 4-Dehydrogenase
Hypophysectomy
Anovulation
Receptors, Androgen
Rats, Inbred Strains
Gonadotropin-Releasing Hormone
Progesterone
Sheep
Hypogonadism
Sex Characteristics
Epididymis
Estrogens
Estrus
Androstadienes
Rats, Sprague-Dawley
Ovary
Prenatal Exposure Delayed Effects
Sex Hormone-Binding Globulin
Pregnancy
Fatty Acids, Volatile
Body Weight
Hypothalamus
Epitestosterone
Rats, Wistar
Clobetasol
Dose-Response Relationship, Drug
Acetates
Rumen
Androstenedione
Butyrates
Fermentation
Testosterone Congeners
Malonates
Dehydroepiandrosterone
Hormone Replacement Therapy
Dehydroepiandrosterone Sulfate
Radioimmunoassay
Effect of testosterone and season on proenkephalin messenger RNA expression in the preoptic area of the hypothalamus in the ram. (1/71)
Enkephalin appears to exert an inhibitory action on LH secretion, but whether testosterone regulates enkephalin gene expression is unknown. This study tested the hypothesis that testosterone and/or season modulate preproenkephalin mRNA expression in specific areas of the hypothalamus. Romney Marsh rams were castrated (wethers) either during the breeding season or nonbreeding season and received intramuscular injections of either oil or testosterone propionate (five/group). Blood samples were taken for the assay of plasma LH and testosterone. Preproenkephalin mRNA expression was quantified in hypothalamic sections by in situ hybridization. Mean plasma LH concentrations were reduced and the interpulse interval for LH pulses was greater in testosterone propionate-treated wethers compared with oil-treated wethers, with no change in LH pulse amplitude. Testosterone propionate treatment reduced proenkephalin expression in the diagonal band of Broca, the caudal preoptic area, and the bed nucleus of the stria terminalis. Seasonal differences in proenkephalin expression were observed in the bed nucleus of the stria terminalis, lateral septum, periventricular nucleus, and paraventricular nucleus. No differences were observed between treatments in seven other regions examined. We conclude that testosterone and season regulate proenkephalin mRNA levels in the preoptic area/hypothalamus in the ram in a region-specific manner. (+info)Expression and regulation of lipocalin-type prostaglandin d synthase in rat testis and epididymis. (2/71)
Lipocalin-type prostaglandin D synthase (L-PGDS), a bifunctional protein, is expressed in the male reproductive organs of many species. However, the expression and regulation of L-PGDS in rat are still uncertain. The present study investigated the regionalization and regulation of L-PGDS expression in rat testis and epididymis by in situ hybridization and immunohistochemistry under the conditions of sexual maturation, castration, and ethylene dimethane sulfonate (EDS) treatments. In sexually mature rats, L-PGDS mRNA was weakly expressed only in the testicular peritubular cells, whereas L-PGDS immunostaining was highly detected in the Leydig cells by Day 70 postpartum. During sexual maturation, L-PGDS mRNA expression was highly detected in the caput, corpus, and cauda of the epididymis 70 days after birth. Compared with normal L-PGDS expression in adult epididymis, both L-PGDS mRNA expression and protein immunostaining were significantly reduced in the caput, corpus, and cauda epididymis after castration. Testosterone propionate treatment induced a significant increase of L-PGDS expression in the epididymis of castrated rats. Compared with adult rat epididymis, L-PGDS mRNA and protein expression was down-regulated after EDS treatment. Testosterone propionate treatment could induce an increase of L-PGDS mRNA and protein expression in the epididymis of EDS-treated rats. In conclusion, both castration and EDS treatments caused a significant decrease of L-PGDS expression in the epididymis, whereas testosterone propionate treatment could induce an increase of L-PGDS expression in the epididymis of both castrated and EDS-treated rats, indicating that L-PGDS expression in the rat epididymis can be up-regulated by testosterone. (+info)Equol is a novel anti-androgen that inhibits prostate growth and hormone feedback. (3/71)
Equol (7-hydroxy-3[4'hydroxyphenyl]-chroman) is the major metabolite of the phytoestrogen daidzein, one of the main isoflavones found abundantly in soybeans and soy foods. Equol may be an important biologically active molecule based on recent studies demonstrating that equol can modulate reproductive function. In this study, we examined the effects of equol on prostate growth and LH secretion and determined some of the mechanisms by which it might act. Administration of equol to intact male rats for 4-7 days reduced ventral prostate and epididymal weight and increased circulating LH levels. Using binding assays, we determined that equol specifically binds 5alpha-dihydrotestosterone (DHT), but not testosterone, dehydroepiandrosterone, or estrogen with high affinity. Equol does not bind the prostatic androgen receptor, and has a modest affinity for recombinant estrogen receptor (ER) beta, and no affinity for ERalpha. In castrated male rats treated with DHT, concomitant treatment with equol blocked DHT's trophic effects on the ventral prostate gland growth and inhibitory feedback effects on plasma LH levels without changes in circulating DHT. Therefore, equol can bind circulating DHT and sequester it from the androgen receptor, thus altering growth and physiological hormone responses that are regulated by androgens. These data suggest a novel model to explain equol's biological properties. The significance of equol's ability to specifically bind and sequester DHT from the androgen receptor have important ramifications in health and disease and may indicate a broad and important usage for equol in the treatment of androgen-mediated pathologies. (+info)Androgens increase spine synapse density in the CA1 hippocampal subfield of ovariectomized female rats. (4/71)
The effects of androgen on the density of spine synapses on pyramidal neurons in the CA1 area of the hippocampus were studied in ovariectomized (OVX) adult female rats. Treatment of OVX rats with testosterone propionate (TP; 500 microg/d, s.c., 2 d) significantly increased spine synapse density (from 0.661 +/- 0.016 spine synapse/microm3 in OVX rats to 1.081 +/- 0.018 spine synapse/microm3 after TP treatment). A smaller, but still statistically significant, increase in synapse density (0.955 +/- 0.029 spine synapse/microm3) was observed in OVX animals after treatment with the nonaromatizable androgen dihydrotestosterone (DHT; 500 microg/d, s.c., 2 d). Administration of 1 mg of letrozole, a powerful nonsteroidal aromatase inhibitor, 1 hr before the steroid injections almost completely blocked the synaptic response to testosterone, resulting in a mean synapse density (0.723 +/- 0.003 spine synapse/microm3) only slightly higher than in OVX control rats. By contrast, the response to DHT was unaffected by letrozole pretreatment. These data suggest that androgen secretion during the female reproductive cycle may contribute to cyclical changes in hippocampal synaptic density. They also indicate that androgen treatment may be as effective as estrogen replacement in reversing the decline in hippocampal CA1 spine synapses that follows loss of ovarian function. Induction of hippocampal synapse formation by androgen is not mediated entirely via intracerebral estrogen biosynthesis, however, because aromatase-independent mechanisms also significantly affect CA1 spine synapse density. (+info)Interactive effects of vinclozolin and testosterone propionate on pregnancy and sexual differentiation of the male and female SD rat. (5/71)
In mammals, androgens are essential in directing mammalian sexual differentiation of the male phenotype. Administration of testosterone during this period alters female development in a male-like direction, whereas exposure to an androgen receptor antagonist like vinclozolin (V) demasculinizes and feminizes the male offspring. In the current study, we administered V (gavage at 200 mg/kg/day) and/or testosterone propionate (TP, sc, at 1 mg/rat/day), alone and in combination to Sprague-Dawley (SD) rats on days 14 through 19 of pregnancy, to determine if V would antagonize the effects of TP in the female and, conversely, if TP would antagonize the effects of V in the male offspring. These doses of TP and V were selected because they significantly alter sexual differentiation in the majority of female and male rat offspring, respectively, without producing severe toxicity in the dam or offspring. The study design is a 2 x 2 factorial (7 dams per group) including vehicle control, V, TP, and V + TP groups. As expected, individually, both V and TP reduced maternal weight gain and the V + TP group was affected in a cumulative fashion. Litter size on postnatal day (PND) 2 was reduced only by V + TP, whereas pup body weight was reduced in all three treated groups, the effect of V + TP again being cumulative. In female offspring, TP-induced alterations (i.e., increased anogenital distance [AGD] and fewer nipples, vaginal agenesis, hydrometrocolpos, induced prostate and bulbourethral glands, and levator ani muscle tissues) were all reversed by coadministration of V. In male offspring, V-induced alterations were only modestly antagonized by TP. At the dosage levels used herein, V + TP-treated male offspring had less well-developed nipples as infants and adults and a lower incidence of ectopic testis than did the V group. However, V-induced changes in reproductive organ weights, AGD, atrophic testes, vaginal pouch, and agenesis of the sex accessory tissues were not antagonized by concurrent TP treatment in male offspring. We observed that the combination of V and TP, two chemicals with opposing endocrine action, antagonized one another during sexual differentiation, especially in the female offspring and induced cumulative effects on maternal and neonatal toxicity. We suspect that antagonism of V by TP would be enhanced in the male if lower dose levels of V were used, but then the antagonism of TP by V in the female would likely be attenuated. (+info)Enhanced rat Hershberger assay appears reliable for detection of not only (anti-)androgenic chemicals but also thyroid hormone modulators. (6/71)
Development of an internationally recognized standard for the Hershberger assay as a screening tool to detect potential (anti-)androgenic chemicals is in progress. In the present preliminary study, we evaluated the reliability of the enhanced Hershberger assay to detect thyroid hormone modulating activity, while concentrating attention on possible confounding influence on evaluation of (anti-)androgenic activity. Castrated or testosterone propionate (TP; 0.2 or 0.25 mg/kg/day)-injected castrated male Crj:CD(SD) IGS rats (seven weeks of age) were dosed for 10 days by oral gavage with vehicle (corn oil) or the following chemicals: propylthiouracil (PTU; 2.5 mg/kg/day), a potent inhibitor of thyroid hormone synthesis, phenobarbital (PB; 125 mg/kg/day) and 2,2-bis(4-chlorophenyl)-1,1-dichloroethylene (p,p'-DDE; 100 mg/kg/day), two hepatic enzyme inducers that enhance the clearance of thyroid hormones. PTU markedly increased thyroid weights, and decreased serum T3 and T4, and increased serum TSH, also causing marked microscopic alteration of the thyroid gland. In comparison, PB and p,p'-DDE only significantly affect serum T4 and revealed some histopathological findings. The alterations appeared to be more robust in the presence of TP. Furthermore, data for p,p'-DDE demonstrated its anti-androgenic effects, whereas PTU and PB had little or no effects on the weights of androgen-related accessory glands/tissues: the ventral prostate, dorso-lateral prostate, seminal vesicles with coagulating glands, glans penis, Cowper's glands, and levator ani plus bulbocavernosus (LABC) muscles. Weight of the LABC muscles was decreased by PB treatment in TP-treated castrated rats. These findings in the present study suggests that the enhanced Hershberger assay, with evaluation of thyroid histopathology and weights, and hormone levels, appears to be reliable for screening for not only (anti-)androgenic chemicals but also thyroid hormone modulators. In order to evaluate whether the sensitivity and specificity of such a thyroid assay is great enough for routine screening purposes, future experiments including dose-response studies using lower dose levels have to be performed. (+info)Effect of baicalein on experimental prostatic hyperplasia in rats and mice. (7/71)
We determined the effect of baicalein on prostatic hyperplasia in experimental animal models. Prostatic hyperplasia was induced by testosterone propionate in mice and castrated rats and by transplantation of homologous strain fetal mice urogenital sinus in mice. With the histopathological examination, the efficacy of baicalein on prostate hyperplasia in experimental animals was evaluated by the activity of serum acid phosphatase (ACP) and the following norm of the prostate gland: the volume, wet weight, wet weight index, dry weight index, DNA contents and prostatic epithelial height and cavity diameter. Results showed that baicalein at doses of 260 and 130 mg/kg administrated intragastrically (i.g.) significantly inhibited prostatic hyperplasia in castrated rats induced by testosterone propionate compared with the negative control group (p<0.01). Baicalein at doses of 520 and 260 mg/kg (i.g.) also significantly inhibited prostatic hyperplasia in mice induced by transplantation of homologous strain fetal mouse urogenital sinus and by testosterone propionate (p<0.01). These results suggested that baicalein has an inhibitory effect on prostatic hyperplasia in experimental animals. (+info)Expression of hypothalamic arginine vasotocin gene in response to water deprivation and sex steroid administration in female Japanese quail. (8/71)
Arginine vasotocin (AVT) is a neurohypophyseal hormone involved in reproductive function and control of osmoregulation in birds. In view of the dual function of AVT, the present experiment was designed to observe the effect of water deprivation (WD) and sex steroid [estradiol benzoate (EB) and testosterone propionate (TP)] treatment independently, as well as simultaneously, on the profile/activity of the hypothalamic AVT system. WD resulted in a significant increase in plasma osmolality, sodium ion concentration and AVT concentration, but administration of sex steroids had no significant influence on these parameters. By contrast, the amount of hypothalamic AVT transcript (northern analysis) and the size of immunoreactive vasotocin (ir-AVT) neurons and hybridization signals (in the form of silver grains), representing AVT mRNA in corresponding neurons of paraventricular nuclei (PVN), increased significantly in all the treated groups compared with controls. Our findings indicate that although sex steroid administration has no effect on plasma osmolality and AVT concentration, unlike water deprivation, it may stimulate the profile/activity of AVT neurons of PVN, supporting the possibility of sex steroid receptors on these neurons. It is concluded that in quail, osmotic stress not only upregulates the expression of the AVT gene in existing neurons but also recruits many more neurons to increase the rate of AVT synthesis and secretion, while sex steroids appear to have a stimulatory effect only on the existing number of neurons and only at the level of transcription/translation and hence may influence/modulate hypothalamic AVT gene expression in response to osmotic stress. This study also suggests an interrelationship between reproduction and AVT system/function in birds. (+info)Testosterone Propionate is a synthetic form of testosterone, an androgenic hormone naturally produced in the human body. The propionate ester is attached to the testosterone molecule to regulate its release into the bloodstream after injection. This results in a slower release and longer duration of action compared to unesterified testosterone.
Testosterone Propionate is primarily used in medical treatments for conditions associated with low testosterone levels, such as hypogonadism or delayed puberty in males. It helps to stimulate the development of male sexual characteristics, maintain bone density, and support red blood cell production.
It's important to note that Testosterone Propionate is available only through a prescription and its use should be under the supervision of a healthcare professional due to potential side effects and interactions with other medications or health conditions.
Testosterone is a steroid hormone that belongs to androsten class of hormones. It is primarily secreted by the Leydig cells in the testes of males and, to a lesser extent, by the ovaries and adrenal glands in females. Testosterone is the main male sex hormone and anabolic steroid. It plays a key role in the development of masculine characteristics, such as body hair and muscle mass, and contributes to bone density, fat distribution, red cell production, and sex drive. In females, testosterone contributes to sexual desire and bone health. Testosterone is synthesized from cholesterol and its production is regulated by luteinizing hormone (LH) and follicle-stimulating hormone (FSH).
Propionates, in a medical context, most commonly refer to a group of medications that are used as topical creams or gels to treat fungal infections of the skin. Propionic acid and its salts, such as propionate, are the active ingredients in these medications. They work by inhibiting the growth of fungi, which causes the infection. Common examples of propionate-containing medications include creams used to treat athlete's foot, ringworm, and jock itch.
It is important to note that there are many different types of medications and compounds that contain the word "propionate" in their name, as it refers to a specific chemical structure. However, in a medical context, it most commonly refers to antifungal creams or gels.
Castration is a surgical procedure to remove the testicles in males or ovaries in females. In males, it is also known as orchiectomy. This procedure results in the inability to produce sex hormones and gametes (sperm in men and eggs in women), and can be done for various reasons such as medical treatment for certain types of cancer, to reduce sexual urges in individuals with criminal tendencies, or as a form of birth control in animals.
Orchiectomy is a surgical procedure where one or both of the testicles are removed. It is also known as castration. This procedure can be performed for various reasons, including the treatment of testicular cancer, prostate cancer, or other conditions that may affect the testicles. It can also be done to reduce levels of male hormones in the body, such as in the case of transgender women undergoing gender affirming surgery. The specific medical definition may vary slightly depending on the context and the extent of the procedure.
Androgens are a class of hormones that are primarily responsible for the development and maintenance of male sexual characteristics and reproductive function. Testosterone is the most well-known androgen, but other androgens include dehydroepiandrosterone (DHEA), androstenedione, and dihydrotestosterone (DHT).
Androgens are produced primarily by the testes in men and the ovaries in women, although small amounts are also produced by the adrenal glands in both sexes. They play a critical role in the development of male secondary sexual characteristics during puberty, such as the growth of facial hair, deepening of the voice, and increased muscle mass.
In addition to their role in sexual development and function, androgens also have important effects on bone density, mood, and cognitive function. Abnormal levels of androgens can contribute to a variety of medical conditions, including infertility, erectile dysfunction, acne, hirsutism (excessive hair growth), and prostate cancer.
Dihydrotestosterone (DHT) is a sex hormone and androgen that plays a critical role in the development and maintenance of male characteristics, such as facial hair, deep voice, and muscle mass. It is synthesized from testosterone through the action of the enzyme 5-alpha reductase. DHT is essential for the normal development of the male genitalia during fetal development and for the maturation of the sexual organs at puberty.
In addition to its role in sexual development, DHT also contributes to the growth of hair follicles, the health of the prostate gland, and the maintenance of bone density. However, an excess of DHT has been linked to certain medical conditions, such as benign prostatic hyperplasia (BPH) and androgenetic alopecia (male pattern baldness).
DHT exerts its effects by binding to androgen receptors in various tissues throughout the body. Once bound, DHT triggers a series of cellular responses that regulate gene expression and influence the growth and differentiation of cells. In some cases, these responses can lead to unwanted side effects, such as hair loss or prostate enlargement.
Medications that block the action of 5-alpha reductase, such as finasteride and dutasteride, are sometimes used to treat conditions associated with excess DHT production. These drugs work by reducing the amount of DHT available to bind to androgen receptors, thereby alleviating symptoms and slowing disease progression.
In summary, dihydrotestosterone is a potent sex hormone that plays a critical role in male sexual development and function. While it is essential for normal growth and development, an excess of DHT has been linked to certain medical conditions, such as BPH and androgenetic alopecia. Medications that block the action of 5-alpha reductase are sometimes used to treat these conditions by reducing the amount of DHT available to bind to androgen receptors.
Estradiol is a type of estrogen, which is a female sex hormone. It is the most potent and dominant form of estrogen in humans. Estradiol plays a crucial role in the development and maintenance of secondary sexual characteristics in women, such as breast development and regulation of the menstrual cycle. It also helps maintain bone density, protect the lining of the uterus, and is involved in cognition and mood regulation.
Estradiol is produced primarily by the ovaries, but it can also be synthesized in smaller amounts by the adrenal glands and fat cells. In men, estradiol is produced from testosterone through a process called aromatization. Abnormal levels of estradiol can contribute to various health issues, such as hormonal imbalances, infertility, osteoporosis, and certain types of cancer.
The seminal vesicles are a pair of glands located in the male reproductive system, posterior to the urinary bladder and superior to the prostate gland. They are approximately 5 cm long and have a convoluted structure with many finger-like projections called infoldings. The primary function of seminal vesicles is to produce and secrete a significant portion of the seminal fluid, which makes up the bulk of semen along with spermatozoa from the testes and fluids from the prostate gland and bulbourethral glands.
The secretion of the seminal vesicles is rich in fructose, which serves as an energy source for sperm, as well as various proteins, enzymes, vitamins, and minerals that contribute to maintaining the optimal environment for sperm survival, nourishment, and transport. During sexual arousal and ejaculation, the smooth muscles in the walls of the seminal vesicles contract, forcing the stored secretion into the urethra, where it mixes with other fluids before being expelled from the body as semen.
"Male genitalia" refers to the reproductive and sexual organs that are typically present in male individuals. These structures include:
1. Testes: A pair of oval-shaped glands located in the scrotum that produce sperm and testosterone.
2. Epididymis: A long, coiled tube that lies on the surface of each testicle where sperm matures and is stored.
3. Vas deferens: A pair of muscular tubes that transport sperm from the epididymis to the urethra.
4. Seminal vesicles: Glands that produce a fluid that mixes with sperm to create semen.
5. Prostate gland: A small gland that surrounds the urethra and produces a fluid that also mixes with sperm to create semen.
6. Bulbourethral glands (Cowper's glands): Two pea-sized glands that produce a lubricating fluid that is released into the urethra during sexual arousal.
7. Urethra: A tube that runs through the penis and carries urine from the bladder out of the body, as well as semen during ejaculation.
8. Penis: The external organ that serves as both a reproductive and excretory organ, expelling both semen and urine.
Luteinizing Hormone (LH) is a glycoprotein hormone, which is primarily produced and released by the anterior pituitary gland. In women, a surge of LH triggers ovulation, the release of an egg from the ovaries during the menstrual cycle. During pregnancy, LH stimulates the corpus luteum to produce progesterone. In men, LH stimulates the testes to produce testosterone. It plays a crucial role in sexual development, reproduction, and maintaining the reproductive system.
Methyltestosterone is a synthetic form of the hormone testosterone, which is primarily used in the treatment of low testosterone levels (hypogonadism) in men. It has a methyl group attached to it, which allows it to be taken orally and still have significant effects on the body.
Testosterone is an androgen hormone that plays important roles in the development and maintenance of male sex characteristics, such as deepening of the voice, growth of facial and body hair, and increased muscle mass. It also helps maintain bone density, red blood cell production, and sex drive.
Methyltestosterone is available in various forms, including tablets and capsules, and its use should be under the supervision of a healthcare professional due to potential side effects and risks associated with its use, such as liver toxicity, increased risk of cardiovascular events, and changes in cholesterol levels.
It's important to note that methyltestosterone is not approved for use in women, as it can cause virilization (development of male sex characteristics) and other side effects.
"Sex differentiation" is a term used in the field of medicine, specifically in reproductive endocrinology and genetics. It refers to the biological development of sexual characteristics that distinguish males from females. This process is regulated by hormones and genetic factors.
There are two main stages of sex differentiation: genetic sex determination and gonadal sex differentiation. Genetic sex determination occurs at fertilization, where the combination of X and Y chromosomes determines the sex of the individual (typically, XX = female and XY = male). Gonadal sex differentiation then takes place during fetal development, where the genetic sex signals the development of either ovaries or testes.
Once the gonads are formed, they produce hormones that drive further sexual differentiation, leading to the development of internal reproductive structures (such as the uterus and fallopian tubes in females, and the vas deferens and seminal vesicles in males) and external genitalia.
It's important to note that while sex differentiation is typically categorized as male or female, there are individuals who may have variations in their sexual development, leading to intersex conditions. These variations can occur at any stage of the sex differentiation process and can result in a range of physical characteristics that do not fit neatly into male or female categories.
Follicle-Stimulating Hormone (FSH) is a glycoprotein hormone secreted and released by the anterior pituitary gland. In females, it promotes the growth and development of ovarian follicles in the ovary, which ultimately leads to the maturation and release of an egg (ovulation). In males, FSH stimulates the testes to produce sperm. It works in conjunction with luteinizing hormone (LH) to regulate reproductive processes. The secretion of FSH is controlled by the hypothalamic-pituitary-gonadal axis and its release is influenced by the levels of gonadotropin-releasing hormone (GnRH), estrogen, inhibin, and androgens.
Organ size refers to the volume or physical measurement of an organ in the body of an individual. It can be described in terms of length, width, and height or by using specialized techniques such as imaging studies (like CT scans or MRIs) to determine the volume. The size of an organ can vary depending on factors such as age, sex, body size, and overall health status. Changes in organ size may indicate various medical conditions, including growths, inflammation, or atrophy.
The testis, also known as the testicle, is a male reproductive organ that is part of the endocrine system. It is located in the scrotum, outside of the abdominal cavity. The main function of the testis is to produce sperm and testosterone, the primary male sex hormone.
The testis is composed of many tiny tubules called seminiferous tubules, where sperm are produced. These tubules are surrounded by a network of blood vessels, nerves, and supportive tissues. The sperm then travel through a series of ducts to the epididymis, where they mature and become capable of fertilization.
Testosterone is produced in the Leydig cells, which are located in the interstitial tissue between the seminiferous tubules. Testosterone plays a crucial role in the development and maintenance of male secondary sexual characteristics, such as facial hair, deep voice, and muscle mass. It also supports sperm production and sexual function.
Abnormalities in testicular function can lead to infertility, hormonal imbalances, and other health problems. Regular self-examinations and medical check-ups are recommended for early detection and treatment of any potential issues.
Virilism is a condition that results from excessive exposure to androgens (male hormones) such as testosterone. It can occur in both males and females, but it is more noticeable in women and children. In females, virilism can cause various masculinizing features like excess body hair, deepened voice, enlarged clitoris, and irregular menstrual cycles. In children, it can lead to premature puberty and growth abnormalities. Virilism is often caused by conditions that involve the adrenal glands or ovaries, including tumors, congenital adrenal hyperplasia, and certain medications.
Cyproterone is an anti-androgen medication that works by blocking the action of androgens (male hormones such as testosterone) in the body. It is used to treat conditions such as prostate cancer, hirsutism (excessive hair growth), and severe acne that have not responded to other treatments. Cyproterone is also used in conjunction with estrogen therapy to help reduce sexual desire in individuals with paraphilic disorders or gender identity disorder.
The medication comes in the form of tablets and is usually taken once or twice a day, depending on the condition being treated. Common side effects of cyproterone include breast tenderness, decreased sex drive, and irregular menstrual periods. More serious side effects may include liver damage, blood clots, and an increased risk of certain types of cancer.
It is important to follow the instructions of a healthcare provider when taking cyproterone, as the medication can interact with other medications and have potentially serious side effects. Regular monitoring by a healthcare provider is also necessary to ensure that the medication is working effectively and to monitor for any potential side effects.
Flutamide is an anti-androgen medication, which is primarily used to treat prostate cancer. It works by blocking the action of androgens (male hormones), such as testosterone, on cancer cells. This helps to slow down or stop the growth of prostate cancer cells. Flutamide may be given in combination with other medications, such as a luteinizing hormone-releasing hormone (LHRH) agonist, to enhance its effectiveness. It is usually taken by mouth in the form of tablets.
Flutamide can have side effects, including breast tenderness and enlargement, hot flashes, nausea, vomiting, diarrhea, and loss of sexual desire. In rare cases, it may cause more serious side effects such as liver damage. It is important to be monitored by a healthcare professional while taking this medication to ensure that it is working properly and to manage any potential side effects.
A drug implant is a medical device that is specially designed to provide controlled release of a medication into the body over an extended period of time. Drug implants can be placed under the skin or in various body cavities, depending on the specific medical condition being treated. They are often used when other methods of administering medication, such as oral pills or injections, are not effective or practical.
Drug implants come in various forms, including rods, pellets, and small capsules. The medication is contained within the device and is released slowly over time, either through diffusion or erosion of the implant material. This allows for a steady concentration of the drug to be maintained in the body, which can help to improve treatment outcomes and reduce side effects.
Some common examples of drug implants include:
1. Hormonal implants: These are small rods that are inserted under the skin of the upper arm and release hormones such as progestin or estrogen over a period of several years. They are often used for birth control or to treat conditions such as endometriosis or uterine fibroids.
2. Intraocular implants: These are small devices that are placed in the eye during surgery to release medication directly into the eye. They are often used to treat conditions such as age-related macular degeneration or diabetic retinopathy.
3. Bone cement implants: These are specially formulated cements that contain antibiotics and are used to fill bone defects or joint spaces during surgery. The antibiotics are released slowly over time, helping to prevent infection.
4. Implantable pumps: These are small devices that are placed under the skin and deliver medication directly into a specific body cavity, such as the spinal cord or the peritoneal cavity. They are often used to treat chronic pain or cancer.
Overall, drug implants offer several advantages over other methods of administering medication, including improved compliance, reduced side effects, and more consistent drug levels in the body. However, they may also have some disadvantages, such as the need for surgical placement and the potential for infection or other complications. As with any medical treatment, it is important to discuss the risks and benefits of drug implants with a healthcare provider.
Gonadal steroid hormones, also known as gonadal sex steroids, are hormones that are produced and released by the gonads (i.e., ovaries in women and testes in men). These hormones play a critical role in the development and maintenance of secondary sexual characteristics, reproductive function, and overall health.
The three main classes of gonadal steroid hormones are:
1. Androgens: These are male sex hormones that are primarily produced by the testes but also produced in smaller amounts by the ovaries and adrenal glands. The most well-known androgen is testosterone, which plays a key role in the development of male secondary sexual characteristics such as facial hair, deepening of the voice, and increased muscle mass.
2. Estrogens: These are female sex hormones that are primarily produced by the ovaries but also produced in smaller amounts by the adrenal glands. The most well-known estrogen is estradiol, which plays a key role in the development of female secondary sexual characteristics such as breast development and the menstrual cycle.
3. Progestogens: These are hormones that are produced by the ovaries during the second half of the menstrual cycle and play a key role in preparing the uterus for pregnancy. The most well-known progestogen is progesterone, which also plays a role in maintaining pregnancy and regulating the menstrual cycle.
Gonadal steroid hormones can have significant effects on various physiological processes, including bone density, cognitive function, mood, and sexual behavior. Disorders of gonadal steroid hormone production or action can lead to a range of health problems, including infertility, osteoporosis, and sexual dysfunction.
Sexual behavior in animals refers to a variety of behaviors related to reproduction and mating that occur between members of the same species. These behaviors can include courtship displays, mating rituals, and various physical acts. The specific forms of sexual behavior displayed by a given species are influenced by a combination of genetic, hormonal, and environmental factors.
In some animals, sexual behavior is closely tied to reproductive cycles and may only occur during certain times of the year or under specific conditions. In other species, sexual behavior may be more frequent and less closely tied to reproduction, serving instead as a means of social bonding or communication.
It's important to note that while humans are animals, the term "sexual behavior" is often used in a more specific sense to refer to sexual activities between human beings. The study of sexual behavior in animals is an important area of research within the field of animal behavior and can provide insights into the evolutionary origins of human sexual behavior as well as the underlying mechanisms that drive it.
Cyproterone acetate is a synthetic steroid hormone with anti-androgen and progestogenic properties. It works by blocking the action of androgens (male sex hormones) in the body, which helps to reduce symptoms associated with excessive androgen production such as severe acne or hirsutism (excessive hair growth).
Cyproterone acetate is used in the treatment of conditions such as prostate cancer, where it can help to slow the growth of cancer cells by reducing the levels of androgens in the body. It is also used in the treatment of sexual deviations, such as pedophilia or exhibitionism, as it can reduce sexual desire.
In addition, cyproterone acetate is sometimes used in combination with estrogen in hormone replacement therapy for transgender women to suppress the production of testosterone and promote feminization.
It's important to note that cyproterone acetate can have significant side effects and its use should be under the close supervision of a healthcare professional.
Aminobiphenyl compounds are a group of chemical substances that contain two phenyl rings linked by a single carbon-nitrogen bond. The amino group (-NH2) is attached to one of the phenyl rings.
These compounds have been historically used in the manufacture of dyes and were also used as rubber accelerators. However, they have been largely phased out due to their carcinogenic properties. Exposure to certain aminobiphenyl compounds has been associated with an increased risk of bladder cancer in humans.
It is important to note that the medical definition of 'aminobiphenyl compounds' generally refers to their chemical structure and potential health hazards, rather than a specific medical condition or treatment.
Sexual maturation is the process of physical development during puberty that leads to the ability to reproduce. This process involves the development of primary and secondary sexual characteristics, changes in hormone levels, and the acquisition of reproductive capabilities. In females, this includes the onset of menstruation and the development of breasts and hips. In males, this includes the deepening of the voice, growth of facial hair, and the production of sperm. Achieving sexual maturation is an important milestone in human development and typically occurs during adolescence.
Genitalia, also known as the genitals, refer to the reproductive organs located in the pelvic region. In males, these include the penis and testicles, while in females, they consist of the vulva, vagina, clitoris, and ovaries. Genitalia are essential for sexual reproduction and can also be associated with various medical conditions, such as infections, injuries, or congenital abnormalities.
Pituitary hormone-releasing hormones (PRHs), also known as hypothalamic releasing hormones or hypothalamic hormones, are small neuropeptides produced and released by the hypothalamus - a small region of the brain. These hormones play crucial roles in regulating the secretion and release of various pituitary hormones, which in turn control several essential bodily functions, including growth, development, metabolism, stress response, reproduction, and lactation.
There are several PRHs, each with a specific target pituitary hormone:
1. Thyrotropin-releasing hormone (TRH): Stimulates the release of thyroid-stimulating hormone (TSH) from the anterior pituitary gland, which then promotes the production and release of thyroid hormones.
2. Gonadotropin-releasing hormone (GnRH): Regulates the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary gland, which are essential for reproductive functions.
3. Corticotropin-releasing hormone (CRH): Stimulates the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland, which then promotes the production and release of cortisol and other glucocorticoids from the adrenal glands.
4. Growth hormone-releasing hormone (GHRH): Stimulates the release of growth hormone (GH) from the anterior pituitary gland, which is essential for growth, development, and metabolism regulation.
5. Somatostatin or growth hormone-inhibiting hormone (GHIH): Inhibits the release of GH from the anterior pituitary gland and also suppresses the secretion of thyroid hormones.
6. Prolactin-releasing hormone (PRH) or prolactin-releasing factor (PRF): Stimulates the release of prolactin from the anterior pituitary gland, which is essential for lactation and reproductive functions.
7. Prolactin-inhibiting hormone (PIH) or dopamine: Inhibits the release of prolactin from the anterior pituitary gland.
These releasing hormones and inhibitory hormones work together to maintain a delicate balance in various physiological processes, including growth, development, metabolism, stress response, and reproductive functions. Dysregulation of these hormonal systems can lead to various endocrine disorders and diseases.
The prostate is a small gland that is part of the male reproductive system. Its main function is to produce a fluid that, together with sperm cells from the testicles and fluids from other glands, makes up semen. This fluid nourishes and protects the sperm, helping it to survive and facilitating its movement.
The prostate is located below the bladder and in front of the rectum. It surrounds part of the urethra, the tube that carries urine and semen out of the body. This means that prostate problems can affect urination and sexual function. The prostate gland is about the size of a walnut in adult men.
Prostate health is an important aspect of male health, particularly as men age. Common prostate issues include benign prostatic hyperplasia (BPH), which is an enlarged prostate not caused by cancer, and prostate cancer, which is one of the most common types of cancer in men. Regular check-ups with a healthcare provider can help to detect any potential problems early and improve outcomes.
The pituitary gland is a small, endocrine gland located at the base of the brain, in the sella turcica of the sphenoid bone. It is often called the "master gland" because it controls other glands and makes the hormones that trigger many body functions. The pituitary gland measures about 0.5 cm in height and 1 cm in width, and it weighs approximately 0.5 grams.
The pituitary gland is divided into two main parts: the anterior lobe (adenohypophysis) and the posterior lobe (neurohypophysis). The anterior lobe is further divided into three zones: the pars distalis, pars intermedia, and pars tuberalis. Each part of the pituitary gland has distinct functions and produces different hormones.
The anterior pituitary gland produces and releases several important hormones, including:
* Growth hormone (GH), which regulates growth and development in children and helps maintain muscle mass and bone strength in adults.
* Thyroid-stimulating hormone (TSH), which controls the production of thyroid hormones by the thyroid gland.
* Adrenocorticotropic hormone (ACTH), which stimulates the adrenal glands to produce cortisol and other steroid hormones.
* Follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which regulate reproductive function in both males and females.
* Prolactin, which stimulates milk production in pregnant and lactating women.
The posterior pituitary gland stores and releases two hormones that are produced by the hypothalamus:
* Antidiuretic hormone (ADH), which helps regulate water balance in the body by controlling urine production.
* Oxytocin, which stimulates uterine contractions during childbirth and milk release during breastfeeding.
Overall, the pituitary gland plays a critical role in maintaining homeostasis and regulating various bodily functions, including growth, development, metabolism, and reproductive function.
3-Oxo-5-alpha-steroid 4-dehydrogenase is an enzyme that plays a role in steroid metabolism. It is involved in the conversion of certain steroids into others by removing hydrogen atoms and adding oxygen to create double bonds in the steroid molecule. Specifically, this enzyme catalyzes the dehydrogenation of 3-oxo-5-alpha-steroids at the 4th position, which results in the formation of a 4,5-double bond.
The enzyme is found in various tissues throughout the body and is involved in the metabolism of several important steroid hormones, including cortisol, aldosterone, and androgens. It helps to regulate the levels of these hormones in the body by converting them into their active or inactive forms as needed.
Deficiencies or mutations in the 3-oxo-5-alpha-steroid 4-dehydrogenase enzyme can lead to various medical conditions, such as congenital adrenal hyperplasia, which is characterized by abnormal hormone levels and development of sexual characteristics.
Hypophysectomy is a surgical procedure that involves the removal or partial removal of the pituitary gland, also known as the hypophysis. The pituitary gland is a small endocrine gland located at the base of the brain, just above the nasal cavity, and is responsible for producing and secreting several important hormones that regulate various bodily functions.
Hypophysectomy may be performed for therapeutic or diagnostic purposes. In some cases, it may be used to treat pituitary tumors or other conditions that affect the function of the pituitary gland. It may also be performed as a research procedure in animal models to study the effects of pituitary hormone deficiency on various physiological processes.
The surgical approach for hypophysectomy may vary depending on the specific indication and the patient's individual anatomy. In general, however, the procedure involves making an incision in the skull and exposing the pituitary gland through a small opening in the bone. The gland is then carefully dissected and removed or partially removed as necessary.
Potential complications of hypophysectomy include damage to surrounding structures such as the optic nerves, which can lead to vision loss, and cerebrospinal fluid leaks. Additionally, removal of the pituitary gland can result in hormonal imbalances that may require long-term management with hormone replacement therapy.
Anovulation is a medical condition in which there is a failure to ovulate, or release a mature egg from the ovaries, during a menstrual cycle. This can occur due to various reasons such as hormonal imbalances, polycystic ovary syndrome (PCOS), premature ovarian failure, excessive exercise, stress, low body weight, or certain medications. Anovulation is common in women with irregular menstrual cycles and can cause infertility if left untreated. In some cases, anovulation may be treated with medication to stimulate ovulation.
Ovariectomy is a surgical procedure in which one or both ovaries are removed. It is also known as "ovary removal" or "oophorectomy." This procedure is often performed as a treatment for various medical conditions, including ovarian cancer, endometriosis, uterine fibroids, and pelvic pain. Ovariectomy can also be part of a larger surgical procedure called an hysterectomy, in which the uterus is also removed.
In some cases, an ovariectomy may be performed as a preventative measure for individuals at high risk of developing ovarian cancer. This is known as a prophylactic ovariectomy. After an ovariectomy, a person will no longer have menstrual periods and will be unable to become pregnant naturally. Hormone replacement therapy may be recommended in some cases to help manage symptoms associated with the loss of hormones produced by the ovaries.
Androgen receptors (ARs) are a type of nuclear receptor protein that are expressed in various tissues throughout the body. They play a critical role in the development and maintenance of male sexual characteristics and reproductive function. ARs are activated by binding to androgens, which are steroid hormones such as testosterone and dihydrotestosterone (DHT). Once activated, ARs function as transcription factors that regulate gene expression, ultimately leading to various cellular responses.
In the context of medical definitions, androgen receptors can be defined as follows:
Androgen receptors are a type of nuclear receptor protein that bind to androgens, such as testosterone and dihydrotestosterone, and mediate their effects on gene expression in various tissues. They play critical roles in the development and maintenance of male sexual characteristics and reproductive function, and are involved in the pathogenesis of several medical conditions, including prostate cancer, benign prostatic hyperplasia, and androgen deficiency syndromes.
"Inbred strains of rats" are genetically identical rodents that have been produced through many generations of brother-sister mating. This results in a high degree of homozygosity, where the genes at any particular locus in the genome are identical in all members of the strain.
Inbred strains of rats are widely used in biomedical research because they provide a consistent and reproducible genetic background for studying various biological phenomena, including the effects of drugs, environmental factors, and genetic mutations on health and disease. Additionally, inbred strains can be used to create genetically modified models of human diseases by introducing specific mutations into their genomes.
Some commonly used inbred strains of rats include the Wistar Kyoto (WKY), Sprague-Dawley (SD), and Fischer 344 (F344) rat strains. Each strain has its own unique genetic characteristics, making them suitable for different types of research.
Gonadotropin-Releasing Hormone (GnRH), also known as Luteinizing Hormone-Releasing Hormone (LHRH), is a hormonal peptide consisting of 10 amino acids. It is produced and released by the hypothalamus, an area in the brain that links the nervous system to the endocrine system via the pituitary gland.
GnRH plays a crucial role in regulating reproduction and sexual development through its control of two gonadotropins: follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These gonadotropins, in turn, stimulate the gonads (ovaries or testes) to produce sex steroids and eggs or sperm.
GnRH acts on the anterior pituitary gland by binding to its specific receptors, leading to the release of FSH and LH. The hypothalamic-pituitary-gonadal axis is under negative feedback control, meaning that when sex steroid levels are high, they inhibit the release of GnRH, which subsequently decreases FSH and LH secretion.
GnRH agonists and antagonists have clinical applications in various medical conditions, such as infertility treatments, precocious puberty, endometriosis, uterine fibroids, prostate cancer, and hormone-responsive breast cancer.
Methylnitrosourea (MNU) is not a medical term per se, but it is a chemical compound that has been widely used in biomedical research, particularly in cancer studies. Therefore, I will provide you with a scientific definition of this compound.
Methylnitrosourea (MNU) is an alkylating agent and a nitrosourea compound. It is known to be highly mutagenic and carcinogenic. MNU acts by transferring its methyl group (-CH3) to DNA, RNA, and proteins, causing damage to these macromolecules. This methylation can lead to point mutations, chromosomal aberrations, and DNA strand breaks, which contribute to genomic instability and cancer initiation and progression.
In research settings, MNU has been used as a model carcinogen to induce tumors in various animal models, primarily rodents, to study the mechanisms of carcinogenesis and evaluate potential chemopreventive or therapeutic agents. However, due to its high toxicity and mutagenicity, handling and use of MNU require strict safety measures and precautions.
Progesterone is a steroid hormone that is primarily produced in the ovaries during the menstrual cycle and in pregnancy. It plays an essential role in preparing the uterus for implantation of a fertilized egg and maintaining the early stages of pregnancy. Progesterone works to thicken the lining of the uterus, creating a nurturing environment for the developing embryo.
During the menstrual cycle, progesterone is produced by the corpus luteum, a temporary structure formed in the ovary after an egg has been released from a follicle during ovulation. If pregnancy does not occur, the levels of progesterone will decrease, leading to the shedding of the uterine lining and menstruation.
In addition to its reproductive functions, progesterone also has various other effects on the body, such as helping to regulate the immune system, supporting bone health, and potentially influencing mood and cognition. Progesterone can be administered medically in the form of oral pills, intramuscular injections, or vaginal suppositories for various purposes, including hormone replacement therapy, contraception, and managing certain gynecological conditions.
I apologize, but "sheep" is not a term that has a medical definition. It is a common animal with the scientific name Ovis aries. If you have any medical or health-related questions, I would be happy to try and help answer those for you.
"Newborn animals" refers to the very young offspring of animals that have recently been born. In medical terminology, newborns are often referred to as "neonates," and they are classified as such from birth until about 28 days of age. During this time period, newborn animals are particularly vulnerable and require close monitoring and care to ensure their survival and healthy development.
The specific needs of newborn animals can vary widely depending on the species, but generally, they require warmth, nutrition, hydration, and protection from harm. In many cases, newborns are unable to regulate their own body temperature or feed themselves, so they rely heavily on their mothers for care and support.
In medical settings, newborn animals may be examined and treated by veterinarians to ensure that they are healthy and receiving the care they need. This can include providing medical interventions such as feeding tubes, antibiotics, or other treatments as needed to address any health issues that arise. Overall, the care and support of newborn animals is an important aspect of animal medicine and conservation efforts.
Hypogonadism is a medical condition characterized by the inability of the gonads (testes in males and ovaries in females) to produce sufficient amounts of sex hormones, such as testosterone and estrogen. This can lead to various symptoms including decreased libido, erectile dysfunction in men, irregular menstrual periods in women, and reduced fertility in both sexes. Hypogonadism may be caused by genetic factors, aging, injury to the gonads, or certain medical conditions such as pituitary disorders. It can be treated with hormone replacement therapy.
"Sex characteristics" refer to the anatomical, chromosomal, and genetic features that define males and females. These include both primary sex characteristics (such as reproductive organs like ovaries or testes) and secondary sex characteristics (such as breasts or facial hair) that typically develop during puberty. Sex characteristics are primarily determined by the presence of either X or Y chromosomes, with XX individuals usually developing as females and XY individuals usually developing as males, although variations and exceptions to this rule do occur.
The epididymis is a tightly coiled tube located on the upper and posterior portion of the testicle that serves as the site for sperm maturation and storage. It is an essential component of the male reproductive system. The epididymis can be divided into three parts: the head (where newly produced sperm enter from the testicle), the body, and the tail (where mature sperm exit and are stored). Any abnormalities or inflammation in the epididymis may lead to discomfort, pain, or infertility.
Estrogens are a group of steroid hormones that are primarily responsible for the development and regulation of female sexual characteristics and reproductive functions. They are also present in lower levels in males. The main estrogen hormone is estradiol, which plays a key role in promoting the growth and development of the female reproductive system, including the uterus, fallopian tubes, and breasts. Estrogens also help regulate the menstrual cycle, maintain bone density, and have important effects on the cardiovascular system, skin, hair, and cognitive function.
Estrogens are produced primarily by the ovaries in women, but they can also be produced in smaller amounts by the adrenal glands and fat cells. In men, estrogens are produced from the conversion of testosterone, the primary male sex hormone, through a process called aromatization.
Estrogen levels vary throughout a woman's life, with higher levels during reproductive years and lower levels after menopause. Estrogen therapy is sometimes used to treat symptoms of menopause, such as hot flashes and vaginal dryness, or to prevent osteoporosis in postmenopausal women. However, estrogen therapy also carries risks, including an increased risk of certain cancers, blood clots, and stroke, so it is typically recommended only for women who have a high risk of these conditions.
Estrus is a term used in veterinary medicine to describe the physiological and behavioral state of female mammals that are ready to mate and conceive. It refers to the period of time when the female's reproductive system is most receptive to fertilization.
During estrus, the female's ovaries release one or more mature eggs (ovulation) into the fallopian tubes, where they can be fertilized by sperm from a male. This phase of the estrous cycle is often accompanied by changes in behavior and physical appearance, such as increased vocalization, restlessness, and swelling of the genital area.
The duration and frequency of estrus vary widely among different species of mammals. In some animals, such as dogs and cats, estrus occurs regularly at intervals of several weeks or months, while in others, such as cows and mares, it may only occur once or twice a year.
It's important to note that the term "estrus" is not used to describe human reproductive physiology. In humans, the equivalent phase of the menstrual cycle is called ovulation.
Androstadienes are a class of steroid hormones that are derived from androstenedione, which is a weak male sex hormone. Androstadienes include various compounds such as androstadiene-3,17-dione and androstanedione, which are intermediate products in the biosynthesis of more potent androgens like testosterone and dihydrotestosterone.
Androstadienes are present in both males and females but are found in higher concentrations in men. They can be detected in various bodily fluids, including blood, urine, sweat, and semen. In addition to their role in steroid hormone synthesis, androstadienes have been studied for their potential use as biomarkers of physiological processes and disease states.
It's worth noting that androstadienes are sometimes referred to as "androstenes" in the literature, although this term can also refer to other related compounds.
Sprague-Dawley rats are a strain of albino laboratory rats that are widely used in scientific research. They were first developed by researchers H.H. Sprague and R.C. Dawley in the early 20th century, and have since become one of the most commonly used rat strains in biomedical research due to their relatively large size, ease of handling, and consistent genetic background.
Sprague-Dawley rats are outbred, which means that they are genetically diverse and do not suffer from the same limitations as inbred strains, which can have reduced fertility and increased susceptibility to certain diseases. They are also characterized by their docile nature and low levels of aggression, making them easier to handle and study than some other rat strains.
These rats are used in a wide variety of research areas, including toxicology, pharmacology, nutrition, cancer, and behavioral studies. Because they are genetically diverse, Sprague-Dawley rats can be used to model a range of human diseases and conditions, making them an important tool in the development of new drugs and therapies.
An ovary is a part of the female reproductive system in which ova or eggs are produced through the process of oogenesis. They are a pair of solid, almond-shaped structures located one on each side of the uterus within the pelvic cavity. Each ovary measures about 3 to 5 centimeters in length and weighs around 14 grams.
The ovaries have two main functions: endocrine (hormonal) function and reproductive function. They produce and release eggs (ovulation) responsible for potential fertilization and development of an embryo/fetus during pregnancy. Additionally, they are essential in the production of female sex hormones, primarily estrogen and progesterone, which regulate menstrual cycles, sexual development, and reproduction.
During each menstrual cycle, a mature egg is released from one of the ovaries into the fallopian tube, where it may be fertilized by sperm. If not fertilized, the egg, along with the uterine lining, will be shed, leading to menstruation.
"Prenatal exposure delayed effects" refer to the adverse health outcomes or symptoms that become apparent in an individual during their development or later in life, which are caused by exposure to certain environmental factors or substances while they were still in the womb. These effects may not be immediately observable at birth and can take weeks, months, years, or even decades to manifest. They can result from maternal exposure to various agents such as infectious diseases, medications, illicit drugs, tobacco smoke, alcohol, or environmental pollutants during pregnancy. The delayed effects can impact multiple organ systems and may include physical, cognitive, behavioral, and developmental abnormalities. It is important to note that the risk and severity of these effects can depend on several factors, including the timing, duration, and intensity of the exposure, as well as the individual's genetic susceptibility.
Sex Hormone-Binding Globulin (SHBG) is a protein produced mainly in the liver that plays a crucial role in regulating the active forms of the sex hormones, testosterone and estradiol, in the body. SHBG binds to these hormones in the bloodstream, creating a reservoir of bound hormones. Only the unbound (or "free") fraction of testosterone and estradiol is considered biologically active and can easily enter cells to exert its effects.
By binding to sex hormones, SHBG helps control their availability and transport in the body. Factors such as age, sex, infection with certain viruses (like hepatitis or HIV), liver disease, obesity, and various medications can influence SHBG levels and, consequently, impact the amount of free testosterone and estradiol in circulation.
SHBG is an essential factor in maintaining hormonal balance and has implications for several physiological processes, including sexual development, reproduction, bone health, muscle mass, and overall well-being. Abnormal SHBG levels can contribute to various medical conditions, such as hypogonadism (low testosterone levels), polycystic ovary syndrome (PCOS), and certain types of cancer.
Pregnancy is a physiological state or condition where a fertilized egg (zygote) successfully implants and grows in the uterus of a woman, leading to the development of an embryo and finally a fetus. This process typically spans approximately 40 weeks, divided into three trimesters, and culminates in childbirth. Throughout this period, numerous hormonal and physical changes occur to support the growing offspring, including uterine enlargement, breast development, and various maternal adaptations to ensure the fetus's optimal growth and well-being.
Volatile fatty acids (VFA) are a type of fatty acid that have a low molecular weight and are known for their ability to evaporate at room temperature. They are produced in the body during the breakdown of carbohydrates and proteins in the absence of oxygen, such as in the digestive tract by certain bacteria.
The most common volatile fatty acids include acetic acid, propionic acid, and butyric acid. These compounds have various roles in the body, including providing energy to cells in the intestines, modulating immune function, and regulating the growth of certain bacteria. They are also used as precursors for the synthesis of other molecules, such as cholesterol and bile acids.
In addition to their role in the body, volatile fatty acids are also important in the food industry, where they are used as flavorings and preservatives. They are produced naturally during fermentation and aging processes, and are responsible for the distinctive flavors of foods such as yogurt, cheese, and wine.
Body weight is the measure of the force exerted on a scale or balance by an object's mass, most commonly expressed in units such as pounds (lb) or kilograms (kg). In the context of medical definitions, body weight typically refers to an individual's total weight, which includes their skeletal muscle, fat, organs, and bodily fluids.
Healthcare professionals often use body weight as a basic indicator of overall health status, as it can provide insights into various aspects of a person's health, such as nutritional status, metabolic function, and risk factors for certain diseases. For example, being significantly underweight or overweight can increase the risk of developing conditions like malnutrition, diabetes, heart disease, and certain types of cancer.
It is important to note that body weight alone may not provide a complete picture of an individual's health, as it does not account for factors such as muscle mass, bone density, or body composition. Therefore, healthcare professionals often use additional measures, such as body mass index (BMI), waist circumference, and blood tests, to assess overall health status more comprehensively.
The hypothalamus is a small, vital region of the brain that lies just below the thalamus and forms part of the limbic system. It plays a crucial role in many important functions including:
1. Regulation of body temperature, hunger, thirst, fatigue, sleep, and circadian rhythms.
2. Production and regulation of hormones through its connection with the pituitary gland (the hypophysis). It controls the release of various hormones by producing releasing and inhibiting factors that regulate the anterior pituitary's function.
3. Emotional responses, behavior, and memory formation through its connections with the limbic system structures like the amygdala and hippocampus.
4. Autonomic nervous system regulation, which controls involuntary physiological functions such as heart rate, blood pressure, and digestion.
5. Regulation of the immune system by interacting with the autonomic nervous system.
Damage to the hypothalamus can lead to various disorders like diabetes insipidus, growth hormone deficiency, altered temperature regulation, sleep disturbances, and emotional or behavioral changes.
Epitestosterone is a steroid hormone that is structurally similar to testosterone. It is produced in the body, primarily in the testes and adrenal glands, and is a natural component of human urine. Epitestosterone is a weak androgen, meaning it has minimal male sex hormone effects.
The ratio of epitestosterone to testosterone (T/E ratio) in urine is often used as a marker for the detection of doping with anabolic steroids, which are synthetic versions of testosterone. In athletes who have not taken performance-enhancing drugs, the T/E ratio is typically less than 1. However, when anabolic steroids are used, the level of testosterone in the body increases, while the level of epitestosterone remains relatively unchanged, leading to a higher T/E ratio.
Medical professionals and anti-doping agencies use a specific cutoff value for the T/E ratio to determine if an individual has violated doping regulations. It's important to note that some individuals may have naturally higher T/E ratios due to genetic factors, which can complicate the interpretation of test results in anti-doping tests.
"Wistar rats" are a strain of albino rats that are widely used in laboratory research. They were developed at the Wistar Institute in Philadelphia, USA, and were first introduced in 1906. Wistar rats are outbred, which means that they are genetically diverse and do not have a fixed set of genetic characteristics like inbred strains.
Wistar rats are commonly used as animal models in biomedical research because of their size, ease of handling, and relatively low cost. They are used in a wide range of research areas, including toxicology, pharmacology, nutrition, cancer, cardiovascular disease, and behavioral studies. Wistar rats are also used in safety testing of drugs, medical devices, and other products.
Wistar rats are typically larger than many other rat strains, with males weighing between 500-700 grams and females weighing between 250-350 grams. They have a lifespan of approximately 2-3 years. Wistar rats are also known for their docile and friendly nature, making them easy to handle and work with in the laboratory setting.
Clobetasol is a topical corticosteroid medication that is used to reduce inflammation and relieve itching, redness, and swelling associated with various skin conditions. It works by suppressing the immune system's response to reduce inflammation. Clobetasol is available in several forms, including creams, ointments, emulsions, and foams, and is usually applied to the affected area once or twice a day.
It is important to use clobetasol only as directed by a healthcare provider, as prolonged or excessive use can lead to thinning of the skin, increased susceptibility to infections, and other side effects. Additionally, it should not be used on large areas of the body or for extended periods without medical supervision.
A dose-response relationship in the context of drugs refers to the changes in the effects or symptoms that occur as the dose of a drug is increased or decreased. Generally, as the dose of a drug is increased, the severity or intensity of its effects also increases. Conversely, as the dose is decreased, the effects of the drug become less severe or may disappear altogether.
The dose-response relationship is an important concept in pharmacology and toxicology because it helps to establish the safe and effective dosage range for a drug. By understanding how changes in the dose of a drug affect its therapeutic and adverse effects, healthcare providers can optimize treatment plans for their patients while minimizing the risk of harm.
The dose-response relationship is typically depicted as a curve that shows the relationship between the dose of a drug and its effect. The shape of the curve may vary depending on the drug and the specific effect being measured. Some drugs may have a steep dose-response curve, meaning that small changes in the dose can result in large differences in the effect. Other drugs may have a more gradual dose-response curve, where larger changes in the dose are needed to produce significant effects.
In addition to helping establish safe and effective dosages, the dose-response relationship is also used to evaluate the potential therapeutic benefits and risks of new drugs during clinical trials. By systematically testing different doses of a drug in controlled studies, researchers can identify the optimal dosage range for the drug and assess its safety and efficacy.
Acetates, in a medical context, most commonly refer to compounds that contain the acetate group, which is an functional group consisting of a carbon atom bonded to two hydrogen atoms and an oxygen atom (-COO-). An example of an acetate is sodium acetate (CH3COONa), which is a salt formed from acetic acid (CH3COOH) and is often used as a buffering agent in medical solutions.
Acetates can also refer to a group of medications that contain acetate as an active ingredient, such as magnesium acetate, which is used as a laxative, or calcium acetate, which is used to treat high levels of phosphate in the blood.
In addition, acetates can also refer to a process called acetylation, which is the addition of an acetyl group (-COCH3) to a molecule. This process can be important in the metabolism and regulation of various substances within the body.
The rumen is the largest compartment of the stomach in ruminant animals, such as cows, goats, and sheep. It is a specialized fermentation chamber where microbes break down tough plant material into nutrients that the animal can absorb and use for energy and growth. The rumen contains billions of microorganisms, including bacteria, protozoa, and fungi, which help to break down cellulose and other complex carbohydrates in the plant material through fermentation.
The rumen is characterized by its large size, muscular walls, and the presence of a thick mat of partially digested food and microbes called the rumen mat or cud. The animal regurgitates the rumen contents periodically to chew it again, which helps to break down the plant material further and mix it with saliva, creating a more favorable environment for fermentation.
The rumen plays an essential role in the digestion and nutrition of ruminant animals, allowing them to thrive on a diet of low-quality plant material that would be difficult for other animals to digest.
Androstenedione is a steroid hormone produced by the adrenal glands, ovaries, and testes. It is a precursor to both male and female sex hormones, including testosterone and estrogen. In the adrenal glands, it is produced from cholesterol through a series of biochemical reactions involving several enzymes. Androstenedione can also be converted into other steroid hormones, such as dehydroepiandrosterone (DHEA) and estrone.
In the body, androstenedione plays an important role in the development and maintenance of secondary sexual characteristics, such as facial hair and a deep voice in men, and breast development and menstrual cycles in women. It also contributes to bone density, muscle mass, and overall physical strength.
Androstenedione is available as a dietary supplement and has been marketed as a way to boost athletic performance and increase muscle mass. However, its effectiveness for these purposes is not supported by scientific evidence, and it may have harmful side effects when taken in high doses or for extended periods of time. Additionally, the use of androstenedione as a dietary supplement is banned by many sports organizations, including the International Olympic Committee and the National Collegiate Athletic Association.
Prostatic neoplasms refer to abnormal growths in the prostate gland, which can be benign or malignant. The term "neoplasm" simply means new or abnormal tissue growth. When it comes to the prostate, neoplasms are often referred to as tumors.
Benign prostatic neoplasms, such as prostate adenomas, are non-cancerous overgrowths of prostate tissue. They usually grow slowly and do not spread to other parts of the body. While they can cause uncomfortable symptoms like difficulty urinating, they are generally not life-threatening.
Malignant prostatic neoplasms, on the other hand, are cancerous growths. The most common type of prostate cancer is adenocarcinoma, which arises from the glandular cells in the prostate. Prostate cancer often grows slowly and may not cause any symptoms for many years. However, some types of prostate cancer can be aggressive and spread quickly to other parts of the body, such as the bones or lymph nodes.
It's important to note that while prostate neoplasms can be concerning, early detection and treatment can significantly improve outcomes for many men. Regular check-ups with a healthcare provider are key to monitoring prostate health and catching any potential issues early on.
In the field of medicine, "time factors" refer to the duration of symptoms or time elapsed since the onset of a medical condition, which can have significant implications for diagnosis and treatment. Understanding time factors is crucial in determining the progression of a disease, evaluating the effectiveness of treatments, and making critical decisions regarding patient care.
For example, in stroke management, "time is brain," meaning that rapid intervention within a specific time frame (usually within 4.5 hours) is essential to administering tissue plasminogen activator (tPA), a clot-busting drug that can minimize brain damage and improve patient outcomes. Similarly, in trauma care, the "golden hour" concept emphasizes the importance of providing definitive care within the first 60 minutes after injury to increase survival rates and reduce morbidity.
Time factors also play a role in monitoring the progression of chronic conditions like diabetes or heart disease, where regular follow-ups and assessments help determine appropriate treatment adjustments and prevent complications. In infectious diseases, time factors are crucial for initiating antibiotic therapy and identifying potential outbreaks to control their spread.
Overall, "time factors" encompass the significance of recognizing and acting promptly in various medical scenarios to optimize patient outcomes and provide effective care.
Butyrates are a type of fatty acid, specifically called short-chain fatty acids (SCFAs), that are produced in the gut through the fermentation of dietary fiber by gut bacteria. The name "butyrate" comes from the Latin word for butter, "butyrum," as butyrate was first isolated from butter.
Butyrates have several important functions in the body. They serve as a primary energy source for colonic cells and play a role in maintaining the health and integrity of the intestinal lining. Additionally, butyrates have been shown to have anti-inflammatory effects, regulate gene expression, and may even help prevent certain types of cancer.
In medical contexts, butyrate supplements are sometimes used to treat conditions such as ulcerative colitis, a type of inflammatory bowel disease (IBD), due to their anti-inflammatory properties and ability to promote gut health. However, more research is needed to fully understand the potential therapeutic uses of butyrates and their long-term effects on human health.
Fermentation is a metabolic process in which an organism converts carbohydrates into alcohol or organic acids using enzymes. In the absence of oxygen, certain bacteria, yeasts, and fungi convert sugars into carbon dioxide, hydrogen, and various end products, such as alcohol, lactic acid, or acetic acid. This process is commonly used in food production, such as in making bread, wine, and beer, as well as in industrial applications for the production of biofuels and chemicals.
Testosterone congeners refer to structural analogs or derivatives of testosterone, which is the primary male sex hormone and an androgen. These are compounds that have a similar chemical structure to testosterone and may exhibit similar biological activities. Testosterone congeners can be naturally occurring or synthetic and include a variety of compounds such as androgens, anabolic steroids, and estrogens. They can be used in medical treatments, but some are also misused for performance enhancement or other non-medical purposes, which can lead to various health risks and side effects.
"Malonates" is not a recognized medical term. However, in chemistry, malonates refer to salts or esters of malonic acid, a dicarboxylic acid with the formula CH2(COOH)2. Malonic acid and its derivatives have been used in the synthesis of various pharmaceuticals and chemicals, but they are not typically associated with any specific medical condition or treatment. If you have encountered the term "malonates" in a medical context, it may be helpful to provide more information or seek clarification from the source.
Dehydroepiandrosterone (DHEA) is a steroid hormone produced by the adrenal glands. It serves as a precursor to other hormones, including androgens such as testosterone and estrogens such as estradiol. DHEA levels typically peak during early adulthood and then gradually decline with age.
DHEA has been studied for its potential effects on various health conditions, including aging, cognitive function, sexual dysfunction, and certain chronic diseases. However, the evidence supporting its use for these purposes is generally limited and inconclusive. As with any supplement or medication, it's important to consult with a healthcare provider before taking DHEA to ensure safety and effectiveness.
Hormone Replacement Therapy (HRT) is a medical treatment that involves the use of hormones to replace or supplement those that the body is no longer producing or no longer producing in sufficient quantities. It is most commonly used to help manage symptoms associated with menopause and conditions related to hormonal imbalances.
In women, HRT typically involves the use of estrogen and/or progesterone to alleviate hot flashes, night sweats, vaginal dryness, and mood changes that can occur during menopause. In some cases, testosterone may also be prescribed to help improve energy levels, sex drive, and overall sense of well-being.
In men, HRT is often used to treat low testosterone levels (hypogonadism) and related symptoms such as fatigue, decreased muscle mass, and reduced sex drive.
It's important to note that while HRT can be effective in managing certain symptoms, it also carries potential risks, including an increased risk of blood clots, stroke, breast cancer (in women), and cardiovascular disease. Therefore, the decision to undergo HRT should be made carefully and discussed thoroughly with a healthcare provider.
Dehydroepiandrosterone sulfate (DHEA-S) is a steroid hormone that is produced by the adrenal glands. It is a modified form of dehydroepiandrosterone (DHEA), which is converted to DHEA-S in the body for storage and later conversion back to DHEA or other steroid hormones, such as testosterone and estrogen. DHEA-S is often measured in the blood as a marker of adrenal function. It is also available as a dietary supplement, although its effectiveness for any medical purpose is not well established.
Radioimmunoassay (RIA) is a highly sensitive analytical technique used in clinical and research laboratories to measure concentrations of various substances, such as hormones, vitamins, drugs, or tumor markers, in biological samples like blood, urine, or tissues. The method relies on the specific interaction between an antibody and its corresponding antigen, combined with the use of radioisotopes to quantify the amount of bound antigen.
In a typical RIA procedure, a known quantity of a radiolabeled antigen (also called tracer) is added to a sample containing an unknown concentration of the same unlabeled antigen. The mixture is then incubated with a specific antibody that binds to the antigen. During the incubation period, the antibody forms complexes with both the radiolabeled and unlabeled antigens.
After the incubation, the unbound (free) radiolabeled antigen is separated from the antibody-antigen complexes, usually through a precipitation or separation step involving centrifugation, filtration, or chromatography. The amount of radioactivity in the pellet (containing the antibody-antigen complexes) is then measured using a gamma counter or other suitable radiation detection device.
The concentration of the unlabeled antigen in the sample can be determined by comparing the ratio of bound to free radiolabeled antigen in the sample to a standard curve generated from known concentrations of unlabeled antigen and their corresponding bound/free ratios. The higher the concentration of unlabeled antigen in the sample, the lower the amount of radiolabeled antigen that will bind to the antibody, resulting in a lower bound/free ratio.
Radioimmunoassays offer high sensitivity, specificity, and accuracy, making them valuable tools for detecting and quantifying low levels of various substances in biological samples. However, due to concerns about radiation safety and waste disposal, alternative non-isotopic immunoassay techniques like enzyme-linked immunosorbent assays (ELISAs) have become more popular in recent years.
Spermatogenesis is the process by which sperm cells, or spermatozoa, are produced in male organisms. It occurs in the seminiferous tubules of the testes and involves several stages:
1. Spermatocytogenesis: This is the initial stage where diploid spermatogonial stem cells divide mitotically to produce more spermatogonia, some of which will differentiate into primary spermatocytes.
2. Meiosis: The primary spermatocytes undergo meiotic division to form haploid secondary spermatocytes, which then divide again to form haploid spermatids. This process results in the reduction of chromosome number from 46 (diploid) to 23 (haploid).
3. Spermiogenesis: The spermatids differentiate into spermatozoa, undergoing morphological changes such as the formation of a head and tail. During this stage, most of the cytoplasm is discarded, resulting in highly compacted and streamlined sperm cells.
4. Spermation: The final stage where mature sperm are released from the seminiferous tubules into the epididymis for further maturation and storage.
The entire process takes approximately 72-74 days in humans, with continuous production throughout adulthood.
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- When using testosterone propionate, it is important to follow the prescribed dosage, avoid sharing needles or vials, and regularly monitor your hormone levels. (strictlyelectric.in)
- Testosterone propionate is a synthetic form of testosterone, a hormone that is naturally produced in the body. (strictlyelectric.in)
- Testosterone Propionate is an injectable hormone medication that is used for testosterone replacement therapy (TRT). (babystepsuae.com)
- In this condition, males don't produce enough of the sex hormone testosterone. (the-seeds.net)
- Testosterone is also the main anabolic hormone in men and is. (the-seeds.net)
- Testopin-100 is the fast ester of the male sex hormone testosterone. (seelki.com)
- Testosterone propionate is an ester of the hormone testosterone. (we-consent.org)
- 5-alpha reductase takes testosterone that is produced by the body (or added in via hormone replacement therapy) and converts it to dht Both studies found a significant decrease in visceral adipose tissue mass in the testosterone-treated group versus controls, with no significant change in total or subcutaneous adipose tissue mass or fat-free (lean body) mass. (tntbassets.com)
- Testosterone is the principle hormone in humans that produces male secondary sex characteristics ( androgenic ) and is an important hormone in maintaining adequate nitrogen balance, thus aiding in tissue healing and the maintenance of muscle mass (anabolic). (medscape.com)
- Testosterone, the primary male sex hormone, is manufactured in the testes under the influence of luteinizing hormone (LH) in amounts of 2.5-11 mg/day. (medscape.com)
- The involvement of TLR4 in pain behaviors in male mice is dependent on testosterone, as shown by gonadectomy and hormone replacement. (nih.gov)
Deca Durabolin3
- Testosterone Propionate for sale, Deca Durabolin for sale in USA, Androgel for sale no prescription. (publicequalsonline.com)
- You can stack up Testosterone probionate with Deca-Durabolin for maximum muscle building. (dnk-store.su)
- Take 500mg of Testosterone probionate with 200mg of Deca-Durabolin per week, along with 0.5mg/eod of Arimidex, for a total cycle of 12 weeks. (dnk-store.su)
Dosage13
- Single-crystal X-ray diffraction considering sending two letters, one to Major League Baseball asking cypionate dosage bodybuilding in relation to the results obtained during the cycle, what does testosterone enanthate do to your body. (publicequalsonline.com)
- Dosage is based on your medical condition, testosterone blood levels, and response to treatment. (performanceanabolics.com)
- Dosage: For beginners, a common starting dose of Testosterone Propionate in bodybuilding is typically around 50-100 mg every other day or 100-200 mg per week. (dripivplus.com)
- What is the recommended dosage of Testosterone Propionate? (jambianicoworking.com)
- The recommended dosage of Testosterone Propionate is typically 300 mg per week. (jambianicoworking.com)
- However, the specific dosage may vary depending on individual factors such as age, weight, and the severity of testosterone deficiency. (jambianicoworking.com)
- The time it takes to see results from Testosterone Propionate can vary depending on individual factors such as dosage, frequency of administration, and the specific goals of treatment. (jambianicoworking.com)
- When it comes to dosage, 300 mg of Testosterone Propionate is considered to be a moderate dose. (jambianicoworking.com)
- The recommended dosage of testosterone propionate varies depending on individual needs and goals. (strictlyelectric.in)
- It is important to use testosterone propionate under the supervision of a doctor and to follow the recommended dosage to minimize the risk of side effects. (strictlyelectric.in)
- The usual dosage is as follows: Implant two 75 mg pellets for each 25 mg testosterone propionate required weekly. (babystepsuae.com)
- Females who use testosterone or willing to try it one day will make a good thing if they limit themselves with Testosterone Propionate or Sustamed (injecting it every 10-14 days for not more than 6 weeks with the dosage of 250 mg). (steroidchoice.com)
- The effects of Testosterone probionate will depend on the dosage, higher the dosage, greater the muscle building. (dnk-store.su)
Molecule5
- It is an esterified form of testosterone, meaning that it has been modified by attaching a propionate ester to the testosterone molecule. (jambianicoworking.com)
- Testosterone Propionate is the faster ester applicable to a testosterone molecule. (farmaciaitalianagenova.com)
- This is due to the larger Propionate ester attached to the Testosterone molecule. (domestic-supply.com)
- AASs are drugs derived from the modification of the testosterone molecule in order to augment or limit certain characteristics of testosterone. (medscape.com)
- Biochemists quickly noted that additions or subtractions to the testosterone molecule at specific locations would have a somewhat predictable effect on the inherent qualities of said compound. (medscape.com)
Natural testosterone production2
- Additionally, long-term use can lead to a suppression of natural testosterone production. (learntestosterone.com)
- Following a cycle, a post-cycle therapy (PCT) is often employed to help the body recover its natural testosterone production. (dripivplus.com)
Form of testosterone10
- Because of this, it is considered to be a natural and bioidentical form of testosterone. (wikipedia.org)
- It was the first testosterone ester to be marketed, and was the major form of testosterone used in medicine until about 1960. (wikipedia.org)
- It was the first commercially available form of testosterone, and the first testosterone ester, to be introduced. (wikipedia.org)
- The medication was the major form of testosterone used medically before 1960. (wikipedia.org)
- In the body, this ester form of testosterone is hydrolyzed rapidly and become actively available as testosterone. (illumina.com)
- Learn about the benefits and uses of 300 mg testosterone propionate, a popular form of testosterone replacement therapy. (jambianicoworking.com)
- Testosterone Propionate is a form of testosterone that is used to treat low testosterone levels in men. (jambianicoworking.com)
- It is a fast-acting form of testosterone that is known for its ability to provide rapid results. (jambianicoworking.com)
- Testosterone Propionate was the very first esterified variant of Testosterone to ever be created, and is the oldest used esterified form of Testosterone dating back to the mid-1930s. (domestic-supply.com)
- Because of this, vast amounts of Testosterone Propionate was found among the prescription drug market in the United States, and was the most widely utilized form of Testosterone in the world until the 1960s. (domestic-supply.com)
Strength11
- The water retention also causes testosterone cypionate to drastically increase strength, which doesn't happen in testosterone propionate. (learntestosterone.com)
- Notably, the strength gains conferred by testosterone can no longer use that combination, dbol 8 weeks results. (markforhm.com)
- Today, more and more people buy Testosterone Propionateto gain more muscle mass and strength. (rssfacil.net)
- A well-designed Testosterone Propionate cycle may significantly improve strength and overall athletic performance. (aristimuqoh.net)
- Improved Bone Density: Testosterone is known to increase bone mineral density, which can help protect against injuries and enhance overall skeletal strength. (dripivplus.com)
- Some of the benefits of taking Testosterone Propionate include increased muscle mass and strength, improved libido and sexual performance, increased energy levels, and improved mood and well-being. (jambianicoworking.com)
- The benefits of using 300 mg of Testosterone Propionate include increased muscle mass, improved strength and endurance, enhanced recovery, and a boost in libido. (jambianicoworking.com)
- Testosterone propionate can help increase muscle mass, improve strength and endurance, enhance libido, and boost overall energy levels. (strictlyelectric.in)
- Testosterone propionate increase bone density also strength, encouraging of linear growth and bone maturation. (1gear.com)
- The strength gains will be steady and sustainable, testosterone propionate 200 mg. (maliekakids.com)
- Testosterone probionate is taken by professional athletes for strength, power, and speed. (dnk-store.su)
Compound2
- Testosterone propionate is an oil-based injectable testosterone compound and it is a single ester testosterone compound, that is used widely in bodybuilding. (1gear.com)
- It is an injectable compound with a slower rate of release than un-esterified Testosterone, but a faster rate of release than all other esterified forms commonly available. (domestic-supply.com)
Cycle4
- When doing some research on the subject, I found that men who shave their facial hair look as though they are working out way more than men who don't, testosterone cycle propionate. (phunkphenomenon.com)
- Be sure to visit my blog here every single day so you can catch up with new posts and updates, testosterone propionate cycle. (phunkphenomenon.com)
- Below is some general information on incorporating Testosterone Propionate into a bodybuilding cycle and possible stacking options. (dripivplus.com)
- Cycle Length: Testosterone Propionate cycles typically last between 8 to 12 weeks. (dripivplus.com)
Substance5
- Testosterone propionate, along with other AAS, is a schedule III controlled substance in the United States under the Controlled Substances Act and a schedule IV controlled substance in Canada under the Controlled Drugs and Substances Act. (wikipedia.org)
- Testosterone Propionate is used by men who do not make enough of a natural substance called testosterone. (performanceanabolics.com)
- Because the substance was developed in the 1930s, it was readily accessible in America and became the most commonly utilized type of Testosterone until the 1960s. (aristimuqoh.net)
- Testosterone Propionate is a controlled substance and is classified as a Schedule III drug in the United States. (jambianicoworking.com)
- Testosterone propionate is a controlled substance in many countries and can only be obtained with a prescription. (strictlyelectric.in)
Injections3
- Also, Testosterone propionate injections are painful, while Testosterone Cypionate / Enanthate injections are smoother. (learntestosterone.com)
- Propionate requires frequent injections compared to other types of testosterone such as cypionate or enanthate. (the-seeds.net)
- Later on, more convenient esterified forms of Testosterone were developed (Testosterone Enanthate and Testosterone Cypionate) which exhibited longer half-lives and windows of release, which therefore appealed to more individuals who preferred less frequent injections, which is what the later developed esterified Testosterone formats provided. (domestic-supply.com)
Benign prostatic h11
- 2. Asteris Radix et Rhizoma suppresses testosterone-induced benign prostatic hyperplasia in rats by regulating apoptosis and inflammation. (nih.gov)
- 4. Effect of gold nanoparticles treatment on the testosterone-induced benign prostatic hyperplasia in rats. (nih.gov)
- 6. Abacopteris penangiana exerts testosterone-induced benign prostatic hyperplasia protective effect through regulating inflammatory responses, reducing oxidative stress and anti-proliferative. (nih.gov)
- 7. Inhibitory Effect of Thymoquinone on Testosterone-Induced Benign Prostatic Hyperplasia in Wistar Rats. (nih.gov)
- 8. Inhibitory effects of Ponciri Fructus on testosterone-induced benign prostatic hyperplasia in rats. (nih.gov)
- 9. Linh Phu Khang Tue Tinh inhibited prostate proliferation in rats induced benign prostatic hyperplasia by testosterone propionate. (nih.gov)
- 10. Cyclooxygenase-2 activates EGFR-ERK1/2 pathway via PGE2-mediated ADAM-17 signaling in testosterone-induced benign prostatic hyperplasia. (nih.gov)
- 12. Amelioration of testosterone induced benign prostatic hyperplasia by Prunus species. (nih.gov)
- 13. Diacerein ameliorates testosterone-induced benign prostatic hyperplasia in rats: Effect on oxidative stress, inflammation and apoptosis. (nih.gov)
- 14. Amelioration of testosterone-induced benign prostatic hyperplasia using febuxostat in rats: The role of VEGF/TGFβ and iNOS/COX-2. (nih.gov)
- 18. Inhibitory Effect of Artemisinin on Testosterone Propionate Induced Benign Prostatic Hyperplasia. (nih.gov)
Shortest-estered1
- Testosterone propionate is the shortest-estered version of testosterone and is available in injectable form. (learntestosterone.com)
Dose6
- Should I run some orals or a light testosterone dose too or are these together good? (babystepsuae.com)
- En attendant des études à plus grande échelle permettant de mieux préciser la dose et la durée optimales, ce traitement devrait être initié et suivi soit chez. (the-seeds.net)
- Starting testosterone topical solution USP dose is 60 mg of testosterone (1 pump actuation of 30 mg of testosterone to each axilla), applied once daily, at the same time each morning. (nih.gov)
- The application site and dose of testosterone topical solution USP are not interchangeable with other topical testosterone products. (nih.gov)
- a metered-dose pump that delivers 30 mg of testosterone per pump. (nih.gov)
- Testosterone Topical Solution, 30 mg/1.5 mL is available as a metered-dose pump. (nih.gov)
Suspension3
- An aqueous suspension of testosterone propionate was marketed by Ciba by 1950. (wikipedia.org)
- Testosterone Propionate is another fast-acting ester, albeit slower than suspension. (babystepsuae.com)
- Testosterone that is un-esterified holds a very short half-life, making its use very inconvenient and impractical (Testosterone suspension is one such Testosterone product that consists of pure un-esterified Testosterone, and does not have an ester bonded to its structure). (domestic-supply.com)
Test Propionate2
- In case you're wondering, Test Propionate is injectable. (aristimuqoh.net)
- Test acetate bp 32mg test deconoate bp 147mg test propionate bp. (tntbassets.com)
Testoviron Testosterone1
- Testosterone propionate is or has been marketed under a variety of brand names, including, among numerous others: Agrovirin Andronate Andrusol-P Anertan Masenate Neo-Hombreol Oreton Perandren Synandrol Testoviron Testosterone propionate is no longer available commercially in the United States except via a compounding pharmacy. (wikipedia.org)
Total testosterone3
- The testosterone stored in the liver, called 'free testosterone', makes up about 7% of total testosterone, testosterone propionate jak brac. (phunkphenomenon.com)
- The total amount of plasma testosterone in the body is about 7, testosterone propionate vs enanthate.7 mmol/L of total testosterone, testosterone propionate vs enanthate. (phunkphenomenon.com)
- Community requests for serum total testosterone assay in men to the Biochemistry Department at the Newcastle upon Tyne Hospitals Trust were also examined over the same time period. (medscape.com)
Ester of testosterone3
- specifically, it is the C17β propionate (propanoate) ester of testosterone. (wikipedia.org)
- An ester of TESTOSTERONE with a propionate substitution at the 17-beta position. (illumina.com)
- The ester of testosterone propionate is acting faster than other testosterone ester, such as cypionate or enanthate and is advised more often to inject in order to maintain stable blood level. (1gear.com)
Water retention3
- Due to the water retention natures of these two substances, Testosterone propionate is usually preferred at cutting cycles while Testosterone Cypionate is used in the mass cycles. (learntestosterone.com)
- Side effects more water retention (which will be lost testosterone, Trenobolone, Dianabol or Boldenone. (thelisteningmachine.org)
- Also, Testosterone blocks muscle wasting hormones and gives you pure, pumped up muscles without the water retention. (dnk-store.su)
Benefits of using testos1
- What are the benefits of using testosterone propionate? (strictlyelectric.in)
Sustanon 2502
- The majority of Testosterone products that have been designed are single products that contain a single esterified form (such as this one), as opposed to Testosterone products which consist of a blend of several different esterified variants in the liquid (such as Sustanon 250, for example). (domestic-supply.com)
- While Testosterone Cypionate is considered the gold standard for TRT in the United States, Sustanon 250 is more commonly used in many other countries, including Europe and Australia. (maliekakids.com)
Winstrol1
- Or, you can stack up Testosterone probionate with Winstrol. (dnk-store.su)
Malay tiger3
- In addition, the female hormones estrogen and progesterone also play a role in maintaining the blood levels of testosterone, testosterone propionate malay tiger. (phunkphenomenon.com)
- This percentage is slightly lower than that of norepinephrine which makes up 7, testosterone propionate malay tiger.7-8, testosterone propionate malay tiger.1% The testosterone concentration in the blood is dependent upon the concentration of cholesterol, testosterone propionate 9ch. (phunkphenomenon.com)
- Propionate 100 is a pharmaceutical grade Testosterone Propionate manufactured by Malay Tiger. (alphapharmaeu.com)
50mg1
- Structure of innovagen test supreme: 50mg testosterone acetate, 75mg. (freewheeling.co.in)
Oily1
- The usual side effects associated with Testosterone also apply to Propionate, such as: High cholesterol Increased blood pressure Risk of gynecomastia Oily skin or/and acne Hair loss Testosterone suppression. (babystepsuae.com)
Products3
- Here you can find all products containing Testosterone Propionate. (steroids.to)
- However, it is important to be cautious when buying testosterone propionate online, as there are many counterfeit products on the market. (strictlyelectric.in)
- Venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE) have been reported in patients using testosterone products. (nih.gov)
Bitcoin1
- Buy Propionate 100 with Bitcoin online, buy Testosterone Propionate with Bitcoin . (alphapharmaeu.com)
Serum testosterone3
- There has lately been increased marketing in the medical media promoting testosterone replacement for men with erectile dysfunction or for older men with low serum testosterone, despite the lack of long-term safety and efficacy data. (medscape.com)
- Local requests from primary care in the Newcastle and North Tyneside area for serum testosterone measurement in men also increased, from 347 requests in 2000 to 823 requests in 2010, a 137% increase. (medscape.com)
- Prior to initiating testosterone topical solution USP, confirm the diagnosis of hypogonadism by ensuring that serum testosterone has been measured in the morning on at least two separate days and that these concentrations are below the normal range ( 2 ). (nih.gov)
Preparations2
- Methods Data about the use of testosterone preparations from the Departments of Health Prescription Cost Analysis for community pharmacies 2001-2010, for England, Scotland and Wales, were collated. (medscape.com)
- Results The number of prescriptions for testosterone preparations increased by nearly 90% from 157 602 to 298 134 dispensed items annually, over a 10-year period. (medscape.com)
Depo-Testosterone2
- Depo®-testosterone label - accessdata. (we-consent.org)
- Aveed, Depo-Testosterone, more. (medscape.com)
Exogenous testosterone2
- Are injecting a potent form of exogenous testosterone skin, sometimes producing acne, and on the hair has Polymyalgia Rheumatica, and unfortunately, has needed to be on corticosteroid for years. (worldblindnesssummit.com)
- It is the #1 choice of those considering exogenous testosterone replacement therapy for the first time. (dnk-store.su)