CONTEXT The IUD is extremely effective but infrequently used by young adult women, who disproportionately experience unintended pregnancies. Research has not examined how IUD use may affect sexuality, which could in turn affect method acceptability, continuation and marketing efforts. METHODS Focus group discussions and interviews were conducted in 2014 with 50 women between the ages of 18 an...

THE CONTRIBUTION OF GENES AND HORMONES TO THE SEXUALDIFFERENTIATION OF THE ZEBRA FINCH SONG SYSTEM

Sex steroids, also known as sex hormones are synthesized naturally by the gonads (ovaries or testes). The two main classes of sex steroids, androgens and estrogens, are crucial hormones for the proper development and function of the body; they regulate sexual differentiation, the secondary sex characteristics, and sexual habits. They are also well known to influence many common cancers, especia...

INTRODUCTION Insufficient documentation exists regarding the prevalence of hypoactive sexual desire disorder (HSDD) in surgically menopausal (SM) women in European countries. Women who have undergone hysterectomy and bilateral oophorectomy experience a loss of ovarian hormones. Inclusion of these women in an epidemiological study provided the opportunity to study biological and cultural impacts...

The slowly maturing, long-lived rodent Octodon degus (degu) provides a unique opportunity to examine the development of the circadian system during adolescence. These studies characterize entrained and free-running activity rhythms in gonadally intact and prepubertally gonadectomized male and female degus across the first year in order to clarify the impact of sex and gonadal hormones on the ci...

Steroid hormones signaling before and after birth sexually differentiates neuronal circuitry. Additionally, steroid hormones released during adolescence can also have long lasting effects on adult behavior and neuronal circuitry. As adolescence is a critical period for the organization of the nervous system by steroid hormones it may also be a sensitive period for the effects of social experien...

  Background :Reproductive endocrine disorders and sexual dysfunction are common among men with epilepsy. We investigated sexual hormone serum levels among men with newly diagnosed epilepsy, before starting any antiepileptic drug (AED), and then after starting carbamazepine (CBZ), to determine the role and effects of epilepsy versus CBZ in creating reproductive endocrine disorders.   Methods : ...

When stimulated by equivalent amounts of progametangia-inducing hormones, cultures of the minus mating type of Blakeslea trispora produce about the same quantities of carotenoids as mated cultures of the fungus, which suggests that the stimulation of carotene synthesis during the sexual activity of mated cultures is the result of hormonal action. These hormones were isolated and purified. From ...

In non-human primates, gonadal hormones alter attractivity and proceptivity to produce maximal sexual interaction around ovulation. A review of the relevant literature for humans revealed little comparable data. Hormonal correlations with human sexual behaviour have been difficult to demonstrate, and the most prominent peak of conscious sexual desire appears to occur in the mid-follicular rathe...

Background Pyrethroids are commonly used as insecticides for both household and agricultural applications, and have recently been linked to endocrine disruption. Cypermethrin is a type П pyrethroid which is used widely throughout the world. The present study was aimed to investigate the effects of cypermethrin on the sexual behaviour and plasma level of pituitary-gonadal hormones of adult male ...