نتایج جستجو برای: serum testosterone
تعداد نتایج: 323717 فیلتر نتایج به سال:
conclusions it is concluded that dietary supplementation of l-carnitine has no effect on serum levels of estrogen, progesterone and testosterone in cats following ovariohysterectomy. long-term study is recommended. background the benefits of the addition of l-carnitine to the diet of cats to control weight gain after the removal of their ovaries have been highlighted recently. it is also used i...
CONTEXT Obesity in men is associated with low serum testosterone and both are associated with several diseases and increased mortality. OBJECTIVES Examine the direction and causality of the relationship between body mass index (BMI) and serum testosterone. DESIGN Bi-directional Mendelian randomization (MR) analysis on prospective cohorts. SETTING Five cohorts from Denmark, Germany and Swe...
As men age, their serum testosterone concentrations decrease, as do their bone densities. Because bone density is also low in hypogonadal men, we hypothesized that increasing the serum testosterone concentrations of men over 65 yr to those found in young men would increase their bone densities. We randomized 108 men over 65 yr of age to wear either a testosterone patch or a placebo patch double...
Background and Objective: Studies showed that Aloe vera extract can influence reproductive functions in animals. The purpose of this study was to determine the effect of immobilization stress and Aloe vera extract on serum LH, FSH and testosterone levels in male rats. Materials and Methods: In this study, male Wistar rats were randomly divided into 9 groups including control, Aloe ve...
Introduction: Herein, we evaluated linkages between EFs performances and dopamine receptor (DR) mRNA and testosterone level in the young Iranian male people. Methods: All 140 participants were normalized using depression, anxiety and stress scale questionnaire. Remained 108 volunteers were tested against drug abuse and then volunteers were distinguished by Wisconsin Card Sorting Test (WSC...
OBJECTIVE In a phase I single-centre, open, randomized study, the pharmacokinetics of two doses of a transdermal testosterone gel containing 2.5% testosterone were evaluated in 26 healthy male volunteers. DESIGN To eliminate the influence of endogenous serum testosterone, gonadotrophins and endogenous testosterone secretion were suppressed by a single intramuscular injection of 400 mg norethi...
Obesity has reached epidemic proportions worldwide. Obesity results in reduced serum testosterone levels, which causes many disorders in men. Lifestyle modifications (increased physical activity and calorie restriction) can increase serum testosterone levels. However, it is unknown whether increased physical activity or calorie restriction during lifestyle modifications has a greater effects on...
Intact and hypophysectomized rats were treated with graded doses of testosterone via subcutaneous Silastic implants over a 13-week period. Serum inhibin concentrations fell 50% (P less than 0.001) after 2 weeks of hypophysectomy, remaining suppressed at this level for 13 weeks. The administration of testosterone to hypophysectomized rats (serum testosterone values 2-12 ng/ml; control values 5.5...
In young men, chronic ingestion of 100 mg androstenedione (ASD), three times per day, does not increase serum total testosterone but does increase serum estrogen and ASD concentrations. We investigated the effects of ASD ingestion in healthy 30- to 56-yr-old men. In a double-blind, randomly assigned manner, subjects consumed 100 mg ASD three times daily (n = 28), or placebo (n = 27) for 28 days...
OBJECTIVE The transition from childhood to teenaged years is associated with increased testosterone and a decreased iron status. It is not clear whether higher testosterone levels cause the decreased iron status, and to what extent, obesity-related inflammation influences the iron-testosterone relationship. The aim of the present study was to examine relationships of testosterone, iron status, ...
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