objective: the present research aimed to study the relationship of identity styles and attitude toward delinquency with delinquent behavior of adolescents. methods: the present research is a cross sectional study. data collection tools were berzonsky’s identity style inventory, attitude toward delinquent behaviors questionnaire, and interviews, which were analyzed through simultaneous regressio...

OBJECTIVE To describe bisexual men's behavior in terms of sexual identity, condom use, frequency of sexual intercourse and types of partners and to determine rates of inconsistent condom according to partner's gender. METHODS Cross-sectional study nested in a cohort of HIV-negative homosexual and bisexual men in the city of Belo Horizonte, Southeastern Brazil, followed up since 1994 (Horizont...

background increased prevalent use of methamphetamine is a global public challenge. information on drug use can be helpful in preventing high-risk behavior related to drug abuse. objectives this study aims to investigate the sexual function changes related to methamphetamine use in the male clients of public and private addiction treatment centers. patients and methods in this qualitative study...

background: human immunodeficiency virus (hiv) epidemics are largely linked to high-risk populations such as female commercial sex workers (fsws). this study assessed sexual behaviors, attitudes and knowledge of this marginalized group. methods: we conducted a cross- sectional study on 278 selfidentified fsws by using respondent driven sampling (rds) method in shiraz, south of iran, from june 2...

Background: Anabolic-androgenic steroids are used at high doses by athletes for improving athletic ability, physical appearance and muscle mass. Therefore, the abuse of these steroids has been significantly increased. Many undesirable side effects of these steroids on the male reproductive function have been reported, however, little is known about their effects on sexual behavior and tissues o...

The effects of lesions in the ventromedial hypothalamus (VMH) on male and female sexual behavior in female cats were examined. Following preoperative testing for receptivity, proceptivity, and male mating behavior, 27 female cats received either lesions in the anterior or posterior portion of the VMH or sham lesions. Neither of the VMH lesion placements reduced proceptivity and receptivity scor...

Sex differences in the brain and behavior are primarily attributed to dichotomous androgen exposure between males and females during neonatal development, as well as adult responses to gonadal hormones. Here we tested an alternative hypothesis and asked if sex chromosome complement influences male copulatory behavior, a standard behavior for studies of sexual differentiation. We used two mouse ...

Testosterone plays a central role in the facilitation of male-type social behaviors, such as sexual and aggressive behaviors, and the development of their neural bases in male mice. The action of testosterone via estrogen receptor (ER) α, after being aromatized to estradiol, has been suggested to be crucial for the full expression of these behaviors. We previously reported that silencing of ERα...

In addition to food intake and energy balance regulation, ghrelin mediate the rewarding and motivational properties of palatable food as well as addictive drugs. The ability of ghrelin to regulate reinforcement involves the cholinergic-dopaminergic reward link, which encompasses a cholinergic projection from the laterodorsal tegmental area (LDTg) to the ventral tegmental area (VTA) together wit...