Coitus: The sexual union of a male and a female, a term used for human only.Coitus Interruptus: A contraceptive method whereby coitus is purposely interrupted in order to prevent EJACULATION of SEMEN into the VAGINA.Copulation: Sexual union of a male and a female in non-human species.Masturbation: Sexual stimulation or gratification of the self.Labor Onset: The beginning of true OBSTETRIC LABOR which is characterized by the cyclic uterine contractions of increasing frequency, duration, and strength causing CERVICAL DILATATION to begin (LABOR STAGE, FIRST ).Penis: The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.Sperm Transport: Passive or active movement of SPERMATOZOA from the testicular SEMINIFEROUS TUBULES through the male reproductive tract as well as within the female reproductive tract.Semen: The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma.Penile Erection: The state of the PENIS when the erectile tissue becomes filled or swollen (tumid) with BLOOD and causes the penis to become rigid and elevated. It is a complex process involving CENTRAL NERVOUS SYSTEM; PERIPHERAL NERVOUS SYSTEMS; HORMONES; SMOOTH MUSCLES; and vascular functions.Ovulation: The discharge of an OVUM from a rupturing follicle in the OVARY.Vagina: The genital canal in the female, extending from the UTERUS to the VULVA. (Stedman, 25th ed)Pregnancy: The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.Sexual Behavior: Sexual activities of humans.Uterus: The hollow thick-walled muscular organ in the female PELVIS. It consists of the fundus (the body) which is the site of EMBRYO IMPLANTATION and FETAL DEVELOPMENT. Beyond the isthmus at the perineal end of fundus, is CERVIX UTERI (the neck) opening into VAGINA. Beyond the isthmi at the upper abdominal end of fundus, are the FALLOPIAN TUBES.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Eating Disorders: A group of disorders characterized by physiological and psychological disturbances in appetite or food intake.Nephropidae: Family of large marine CRUSTACEA, in the order DECAPODA. These are called clawed lobsters because they bear pincers on the first three pairs of legs. The American lobster and Cape lobster in the genus Homarus are commonly used for food.Palinuridae: A family of marine CRUSTACEA, in the order DECAPODA, comprising the clawless lobsters. They are found in tropical and subtropical waters and characterized by short spines along the length of the tail and body.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Bulbourethral Glands: Glands situated on each side of the prostate that secrete a fluid component of the seminal fluid into the urethra.Intrauterine Devices: Contraceptive devices placed high in the uterine fundus.Condoms: A sheath that is worn over the penis during sexual behavior in order to prevent pregnancy or spread of sexually transmitted disease.Divorce: Legal dissolution of an officially recognized marriage relationship.Superovulation: Occurrence or induction of release of more ova than are normally released at the same time in a given species. The term applies to both animals and humans.BooksFertility: The capacity to conceive or to induce conception. It may refer to either the male or female.Infertility, Female: Diminished or absent ability of a female to achieve conception.Genitalia, Female: The female reproductive organs. The external organs include the VULVA; BARTHOLIN'S GLANDS; and CLITORIS. The internal organs include the VAGINA; UTERUS; OVARY; and FALLOPIAN TUBES.Clitoris: An erectile structure homologous with the penis, situated beneath the anterior labial commissure, partially hidden between the anterior ends of the labia minora.Electronic Mail: Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.Genitalia, Male: The male reproductive organs. They are divided into the external organs (PENIS; SCROTUM;and URETHRA) and the internal organs (TESTIS; EPIDIDYMIS; VAS DEFERENS; SEMINAL VESICLES; EJACULATORY DUCTS; PROSTATE; and BULBOURETHRAL GLANDS).Genitalia: The external and internal organs related to reproduction.Erotica: Literary or artistic items having an erotic theme. It refers especially to books treating sexual love in a sensuous or voluptuous manner. (Webster, 3d ed)Embryo, Mammalian: The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS.Pluripotent Stem Cells: Cells that can give rise to cells of the three different GERM LAYERS.Embryonic Stem Cells: Cells derived from the BLASTOCYST INNER CELL MASS which forms before implantation in the uterine wall. They retain the ability to divide, proliferate and provide progenitor cells that can differentiate into specialized cells.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Octamer Transcription Factor-3: An octamer transcription factor that is expressed primarily in totipotent embryonic STEM CELLS and GERM CELLS and is down-regulated during CELL DIFFERENTIATION.Nuclear Reprogramming: The process that reverts CELL NUCLEI of fully differentiated somatic cells to a pluripotent or totipotent state. This process can be achieved to a certain extent by NUCLEAR TRANSFER TECHNIQUES, such as fusing somatic cell nuclei with enucleated pluripotent embryonic stem cells or enucleated totipotent oocytes. GENE EXPRESSION PROFILING of the fused hybrid cells is used to determine the degree of reprogramming. Dramatic results of nuclear reprogramming include the generation of cloned mammals, such as Dolly the sheep in 1997.Students, Medical: Individuals enrolled in a school of medicine or a formal educational program in medicine.Students: Individuals enrolled in a school or formal educational program.Questionnaires: Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.Contraception: Prevention of CONCEPTION by blocking fertility temporarily, or permanently (STERILIZATION, REPRODUCTIVE). Common means of reversible contraception include NATURAL FAMILY PLANNING METHODS; CONTRACEPTIVE AGENTS; or CONTRACEPTIVE DEVICES.Cathartics: Agents that are used to stimulate evacuation of the bowels.Bisacodyl: A diphenylmethane stimulant laxative used for the treatment of CONSTIPATION and for bowel evacuation. (From Martindale, The Extra Pharmacopoeia, 30th ed, p871)Mumps Vaccine: Vaccines used to prevent infection by MUMPS VIRUS. Best known is the live attenuated virus vaccine of chick embryo origin, used for routine immunization of children and for immunization of adolescents and adults who have not had mumps or been immunized with live mumps vaccine. Children are usually immunized with measles-mumps-rubella combination vaccine.Mumps virus: The type species of RUBULAVIRUS that causes an acute infectious disease in humans, affecting mainly children. Transmission occurs by droplet infection.Wounds, Stab: Penetrating wounds caused by a pointed object.Acidosis, Respiratory: Respiratory retention of carbon dioxide. It may be chronic or acute.Ailanthus: A plant genus of the family SIMAROUBACEAE. Members contain ailantinols and other quassinoids.Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337)Paresthesia: Subjective cutaneous sensations (e.g., cold, warmth, tingling, pressure, etc.) that are experienced spontaneously in the absence of stimulation.

Risk factors for abnormal anal cytology in young heterosexual women. (1/521)

Although anal cancers are up to four times more common in women than men, little is known about the natural history of anal human papillomavirus (HPV) infections and HPV-related anal lesions in women. This study reports on the prevalence of and risks for anal cytological abnormalities over a 1-year period in a cohort of young women participating in a study of the natural history of cervical HPV infection. In addition to their regularly scheduled sexual behavior interviews and cervical testing, consenting women received anal HPV DNA and cytological testing. Anal cytology smears were obtained from 410 women whose mean age was 22.5 +/- 2.5 years at the onset of the study. Sixteen women (3.9%) were found to have abnormal anal cytology: 4 women had low-grade squamous intraepithelial lesions (SILs) or condyloma; and 12 women had atypical cells of undetermined significance. Factors found to be significantly associated with abnormal anal cytology were a history of anal sex [odds ratio (OR), 6.90; 95% confidence interval (CI), 1.7-47.2], a history of cervical SILs (OR, 4.13; 95% CI, 1.3-14.9), and a current anal HPV infection (OR, 12.28; 95% CI, 3.9-43.5). The strong association between anal intercourse and the development of HPV-induced SILs supports the role of sexual transmission of HPV in anal SILs. Young women who had engaged in anal intercourse or had a history of cervical SILs were found to be at highest risk.  (+info)

Headaches related to sexual activity. (2/521)

Twenty-one patients experienced headache related to sexual activity. Two varieties of headache could be distinguished from the clinical histories. The first, developing as sexual excitement mount, had the characteristics of muscle contraction headache. The second, severe, throbbing or 'explosive' in character, occurring at the time of orgasm, was presumably of vascular origin associated with a hyperdynamic circulatory state. Two of the patients with the latter type of headache had each experienced episodes of cerebral vascular insufficiency on one occasion which subsequently resolved. A third patient in this category had a past history of drop attacks. No evidence of any structural lesion was obtained on clinical examination or investigation, including cerebral angiography in seven patients. Eighteen patients have been followed up for periods of two to seven years without any serious intracranial disorder becoming apparent. While the possibility of intracranial vascular or other lesions must always be borne in mind, there appears to be a syndrome of headache associated with sexual excitement where no organic change can be demonstrated, analogous to benign cough headache and benign exertional headache.  (+info)

Factors related to choosing oral contraception at age 15. (3/521)

This report aims to identify factors which are related to use of oral contraceptives at an early age. A self-administered questionnaire was completed at schools in 1988 and 1992 in southern and western Finland (N = 1339). Sexually experienced girls (mean age 15.8 years) who had answered the question concerning their oral contraceptive use were included (N = 389). Logistic regression analysis was used to compare oral contraceptive users (N = 121) with the group of non-users. Total number of coital experiences was associated with oral contraceptive use: the odds ratio for those having at least 10 coital experiences was 6.30 compared with those with only one intercourse. The proportion was 73% among oral contraceptive users and 30% among non-users. Girls using oral contraceptives perceived more often (67%) that parents accept their sexual relationship (30% among non-users). Oral contraceptive users were less afraid of getting pregnant (9% compared with 31% among non-users) and felt more often that sex was very important in their life (31 and 13%, respectively). Other factors that entered the model were age at menarche, having a steady partner and frequency of disco visits. When a young girl asks for oral contraceptives, she is probably at true risk of pregnancy, and regular contraception should be considered both in view of effective prevention of pregnancies and sexually transmitted diseases.  (+info)

Sexual functioning among stroke patients and their spouses. (4/521)

BACKGROUND AND PURPOSE: The aim of this study was to assess effects of stroke on sexual functioning of stroke patients and their spouses and to study the associations of clinical and psychosocial factors with poststroke changes in sexual functions. METHODS: One hundred ninety-two stroke patients and 94 spouses participating in stroke adjustment courses sponsored by the Finnish Stroke and Aphasia Federation completed a self-administered questionnaire concerning their prestroke and poststroke sexual functions and habits. The main outcome measures were (1) libido, (2) coital frequency, (3) sexual arousal, including erectile and orgastic ability and vaginal lubrication, and (4) sexual satisfaction. RESULTS: A majority of the stroke patients reported a marked decline in all the measured sexual functions, ie, libido, coital frequency, erectile and orgastic ability, and vaginal lubrication, as well as in their sexual satisfaction. The most important explanatory factors for these changes were the general attitude toward sexuality (odds ratio [OR] range, 7.4 to 21.9; logistic regression analysis), fear of impotence (OR, 6.1), inability to discuss sexuality (OR range, 6.8 to 18.5), unwillingness to participate in sexual activity (OR range, 3.1 to 5. 4), and the degree of functional disability (OR range, 3.2 to 5.0). The spouses also reported a significant decline in their libido, sexual activity, and sexual satisfaction as a consequence of stroke. CONCLUSIONS: Sexual dysfunction and dissatisfaction with sexual life are common in both male and female stroke patients and in their spouses. Psychological and social factors seem to exert a strong impact on sexual functioning and the quality of sexual life after stroke.  (+info)

Death due to air embolism during sexual intercourse in the puerperium. (5/521)

We describe the cases of two young women who died due to air embolism during sexual intercourse early in the puerperium.  (+info)

Induction of heat shock protein expression in cervical epithelial cells by human semen. (6/521)

OBJECTIVE: The 70kD heat shock protein (Hsp70), induced when cells are subjected to environmental stress, prevents the denaturation and incorrect folding of polypeptides and may expedite replication and transmission of DNA and RNA viruses. We analyzed whether messenger RNA (mRNA) for Hsp70 was expressed following exposure of a cultured human cervical cell line (HeLa cells) to human semen or in cervical cells from sexually active women. STUDY DESIGN: HeLa cells were co-cultured with a 1:50 dilution of semen from four men or with purified spermatozoa or cell-free seminal fluid. Endocervical swabs were acquired at mid-cycle from 53 women. Heat shock protein 70 mRNA was detected by a reverse transcriptase-polymerase chain reaction utilizing specific primer pairs and analysis on agarose gels. In cervical cells Hsp70 mRNA was measured identically followed by hybridization with an Hsp70-specific internal probe and detection by enzyme-linked immunosorbent assay (ELISA). Cervical immunoglobulin A (IgA) antibodies to the human Hsp70 were determined by ELISA. RESULTS: HeLa cell-semen co-culture resulted in the induction of Hsp70 mRNA. In addition, cell-free seminal plasma and motile sperm incubated individually with HeLa cells also induced this mRNA. Heat shock protein 70 mRNA was detected in 28 (52.8%) of 53 endocervical samples obtained from women at various time points following intercourse. The percentage of samples expressing this mRNA was 37.5% at less than 10 hours, 64.3% at 10 hours, 70% at 11 hours, and between 36% and 50% at later times after semen exposure. The detection of cervical IgA antibodies to the Hsp70 was highly associated with Hsp70 gene transcription. CONCLUSION: Human semen induces transcription of Hsp70 in cervical epithelial cells.  (+info)

Recurrent cystitis in nonpregnant women. (7/521)

Consistent evidence from RCTs shows that antibiotic prophylaxis (either continuous or postcoital), using trimethoprim TMP-SMZ, nitrofurantoin, or a quinolone, reduces infection rates in women with high rates of recurrent cystitis (at least two per year). Limited evidence suggests that intermittent patient-administered treatment (taken at the onset of symptoms) is an effective alternative management strategy to continuous antibiotic prophylaxis in women with high rates of infection (at least two per year). Limited evidence suggests that long-term prophylaxis is likely to benefit women with a baseline rate of more than two infections per year over many years. However, long-term treatment has not yet been evaluated in RCTs. In women who experience recurrent, uncomplicated cystitis, there is no evidence to support routine investigation of the urinary tract with excretory urography, ultrasonography, cystoscopy, or voiding cystourethrography. No specific subgroups of women who would clearly benefit from investigation have yet been adequately defined.  (+info)

Day-specific probabilities of clinical pregnancy based on two studies with imperfect measures of ovulation. (8/521)

Two studies have related the timing of sexual intercourse (relative to ovulation) to day-specific fecundability. The first was a study of Catholic couples practising natural family planning in London in the 1950s and 1960s and the second was of North Carolina couples attempting to become pregnant in the early 1980s. The former identified ovulation based on the ovulatory shift in the basal body temperature, while the latter used urinary assays of hormones. We use a statistical model to correct for error in identifying ovulation and to re-estimate the length of the fertile window and day-specific fecundabilities. We estimate the same 6-day fertile interval in both studies after controlling for error. After adjusting for error both data sets showed the highest estimate of the probability of pregnancy on the day prior to ovulation and both fell close to zero after ovulation. Given that the fertile interval is before ovulation, methods that anticipate ovulation by several days (such as the assessment of cervical mucus) would be particularly useful for couples who want to time their intercourse either to avoid or facilitate conception.  (+info)

  • Compared to the famously fecund rabbit, for whom a single act of coitus has a 90% chance of creating a litter of up to 12 rabbits, humans are very infertile animals. (
  • Coitus interruptus does not protect against sexually transmitted diseases (STDs), including human immunodeficiency virus (HIV), and women using this method should be counseled that consistent and correct use of the male latex condom reduces the risk for transmission of HIV and other STDs. (
  • Coitus interruptus does not protect against sexually transmitted infections (STIs/STDs). (
  • It is important to note that coitus interruptus does not offer protection against sexually transmitted infections. (
  • Flaturia: passage of flatus at coitus. (
  • Methods Eighteen multiparous women (mean age 44.8 ± 7.2 SD years) complained of involuntary passage of flatus during coitus of 4.6 ± 2.4 years duration. (
  • In patients, the abnormal RAIR, the diminished IAS EMG as well as the presence of stools in the rectum at rest appear to be responsible for passage of flatus at coitus. (
  • Alice Stockham coined the term karezza, derived from the Italian word "carezza" meaning "caress", to describe coitus reservatus, but the idea was already in practice at the Oneida Community. (
  • The Oneida Community, founded in the 19th century by John Humphrey Noyes, experimented with coitus reservatus which was then called male continence in a religiously Christian communalist environment. (
  • An anaphylactic reaction, consisting of giant urticaria, oedema, asthma, uterine pain and cardiovascular collapse followed within minutes of coitus. (
  • When the bottle 4 times slower compared to younger patients as loss of melted part by the factor of 2 ml syringe galleries photo coitus deep viagra is used to manage training, documentation control, the third mechanism involves the protonated amino group substituted it-carbon atom of penicillin not: Orally or (only) parenlerally active: And resistant to chemotherapy. (
  • In order to create a sample of students who had not yet initiated sexual intercourse, the students who did not answer question #46 (about coitus), or answered 'yes' to question #185 (about coitus), were eliminated from the sample. (