نتایج جستجو برای: serum testosterone
تعداد نتایج: 323717 فیلتر نتایج به سال:
background: although effects of trace elements on secretion of sex steroids and insulin have been studied, the effects of these hormones on serum level of trace elements have been rarely investigated. the aim of the present study was to evaluate the effect of testosterone and finasteride administration and castration on serum levels of testosterone, insulin, zinc and chromium. methods: male adu...
Background and Aim: Hirsutism is defined as male pattern hair growth in females which affects 10% of women. Our aim was to compare free salivary and free serum testosterone levels in women with hirsutism and healthy controls.Methods: This study was a case-control study in which 30 hirsute women in child bearing age were recruited and compared with 10 healthy controls. For each patient, a questi...
Background: To determine whether men with varicoceles have lower testosterone levels than those without and to ascertain if testosterone levels increase after varicocelectomy and or to determine whether the varicocele grade is related to the degree of improvement in serum testosterone levels after varicocelectomy and also older age is associated with improvements in testosterone after varicocel...
Background : Diabetes mellitus is a common metabolic disease. Its association with low level of testosterone has already been shown in many studies. Considering the role of testosterone hormone in impotency, fatigue, and bone mass deficiency this study aimed to investigate the association between serum total testosterone, free testosterone index (FTI), and sex hormone-binding globulin (SHBG) ...
BACKGROUND Analog-based free testosterone test results, sex hormone binding globulin (SHBG) concentrations, and total testosterone concentrations are somehow related. This study used new experiments to clarify these relationships. METHODS An analog-based free testosterone immunoassay and a total testosterone immunoassay were applied to well-defined fractions of serum testosterone. First, they...
Recently, it has been concluded that measurement of the serum free testosterone level is crucial for evaluating male gonadal function. However, the extent of the decline of serum free testosterone levels with aging and the actual levels in male infertility have not yet been clearly defined. In this study, the clinical significance of serum free testosterone levels was evaluated in a total of 24...
background: the secretion of thyroxin (t4) as the main hormone of thyroid gland is regulated by androgens. the present study aimed to evaluate the effect of testosterone and finasteride administration and castration on serum levels of t4 and to show the effect of this regulation on total body weight, weight of testis, and the weight of prostate. methods: male adult rats (n = 32) were divided in...
Introduction: Sex steroids have multiple roles in regulating of body lipid metabolism. The purpose of this study was to investigate the effects of orchidectomy and administration of testosterone and estradiol on lipid profile in male rats. Methods: In this experimental study, 40 male rats were divided into groups of 5 animals in each: control, orchidectomized, testosterone or estradiol receivi...
Background: Varicocele is recognized as the most common cause of male factor infertility and is found in 15% of the general population. This prevalence increases to 35% in men presenting with primary infertility and between 70 to 80% in men presenting with secondary infertility. The effect of varicocele on Leydig cell function and testosterone production has been always a question. In this stud...
conclusions no interactivity is present in modulatory effects of gabaa receptors and elf-emfs on serum testosterone of male rats. patients and methods fifty adult male rats were randomly assigned into 10 groups. groups 2, 4, 6, 8, and 10 were exposed to elf-emf for 30 days 8hrs per day; while, the remaining groups (1, 3, 5, 7, and 9) were sham exposed animals. at the end of the experiment, anim...
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