OBJECTIVE To better understand sexual dysfunction in patients with schizophrenia and its associations with prolactin and reproductive hormones. METHODS This was a secondary analysis of an open-label, one-day study (N = 402). The primary objective of the study was to assess the prevalence of hyperprolactinemia in patients with schizophrenia who had been treated with conventional antipsychotics...

Several chronic liver diseases are characterized by a clear gender disparity. Among them, hepatocellular carcinoma (HCC) shows significantly higher incidence rates in men than women. The different epidemiological distribution of risk factors for disease and HCC only partially accounts these differences. In fact, the is an organ with recognized sexual dysmorphism extremely sensitive to action an...

To investigate a possible correlation between sexual hormonal status and the presence of female sexual dysfunction (FSD) using the Female Sexual Function Index (FSFI) in females with spinal cord injuries (SCI), we selected 39 SCI fertile-aged women. At visit 1, we assessed the presence of FSD using the FSFI, and all individuals were submitted to a blood hormone evaluation on the third day of th...

BACKGROUND Although research suggests that socio-sexual behavior changes in conjunction with the menstrual cycle, several potential factors are rarely taken into consideration. We investigated the role of changing hormone concentrations on self-reported physical discomfort, sleep, exercise and socio-sexual interest in young, healthy women. METHODS Salivary hormones (dehydroepiandrosterone sul...

Objective: To investigate a possible correlation between sexual hormonal status and presence of female sexual dysfunctions (FSD) through the Female Sexual Function Index (FSFI) in females with spinal cord injuries (SCI). Methods: We selected 39 SCI fertile-aged women. At visit 1 we assessed the 5 presence of FSD using the FSFI and all individuals were submitted to a haematic hormonal evaluation...

Sexual differentiation in birds is controlled genetically as in mammals, although the sex chromosomes are different. Males have a ZZ sex chromosome constitution, while females are ZW. Gene(s) on the sex chromosomes must initiate gonadal sex differentiation during embryonic life, inducing paired testes in ZZ individuals and unilateral ovaries in ZW individuals. The traditional view of avian sexu...

Objective: To describe some reproductive management programs that allow increasing the productive efficiency of ewes. Design/methodology/approach: Description main hormones and their application in sheep protocols. The subjects are reviewed based on academic references as well use protocols at Sheep Goat Reproduction Laboratory Colegio de Postgraduados, Mexico. Results: Hormones, socio-sexual s...

Three experiments were conducted to test whether testicular hormones secreted during puberty masculinize and defeminize the expression of adult reproductive behavior. Experiment 1 tested the hypothesis that gonadal hormones during puberty masculinize behavioral responses to testosterone (T) in adulthood. Male hamsters were castrated either before puberty (noTduringP) or after puberty (TduringP)...

Most models for dioecy in flowering plants assume that dioecy arises directly from hermaphroditism through a series of independent feminizing and masculinizing mutations that become chromosomally linked. However, dioecy appears to evolve most frequently through monoecious grades. The major genetic models do not explain the evolution of unisexual flowers in monoecious and submonoecious populatio...