Male obesity is associated with decreased testosterone levels but the pathophysiological mechanisms behind this association are not completely understood. This study aimed to investigate the impact of hyperglycaemia/insulin resistance and sex hormone-binding globulin (SHBG) levels on testosterone
Evidence suggests that hyperinsulinemic insulin resistance may increase serum levels of ovarian androgens and reduce sex hormone-binding globulin (SHBG) levels in humans. The present study was conducted to assess the effect of administration of the biguanide metformin, a drug commonly used in the
BACKGROUND
The relationships between N-terminal fragment proBNP (B-type natriuretic peptide) (NT-proBNP) and sex steroid hormones have not been fully elucidated. We examined these associations in pre-, peri- and postmenopausal women without known cardiovascular disease. We also examined the change
OBJECTIVE
The associations of total testosterone (TT) and sex hormone-binding globulin (SHBG) with the hypertriglyceridemic waist (HtgW) phenotype and coronary heart disease (CHD) risk have scarcely been examined. We explored such cardiometabolic risk mediations in middle-aged
Increased total and intraabdominal fat (IAF) obesity as well as other metabolic conditions associated with the insulin resistance syndrome (IRS) are related to low levels of sex hormone-binding globulin (SHBG) in young and older Caucasian (CAU) and young African-American (AA) women. We examined
Levels of serum androgens and sex hormone binding globulin (SHBG) were measured in 20 obese Pima Indian females aged 19-44 and compared with those of normal-weight Caucasians aged 20-46. The Pima exhibited significantly decreased SHBG compared to Caucasians, but a strong effect of age on androgen
Background Both sex hormone-binding globulin and central obesity have been found to be associated with metabolic and cardiovascular diseases. However, the direct relation between sex hormone-binding globulin and central obesity has not been demonstrated. Methodology We performed a cross-sectional
The important finding was that sex hormone-binding globulin (SHBG) binds 5 alpha-dihydrotestosterone (DHT) with more efficacy than 17 beta-estradiol in patients with breast cancer and that SHBG binds it with less efficacy than 17 beta-estradiol in normal women. An unexpected finding was that there
Hypothalamo-pituitary-adrenal axis has been reported to influence fat mass distribution in obesity. We investigated the hypothesis that corticosteroid-binding globulin (CBG) polymorphism could influence obesity, metabolic, or hypothalamo-pituitary adrenal (HPA) axis activity parameters. In 44 obese
OBJECTIVE
Plasma levels of corticosteroid-binding globulin (CBG) and sex hormone-binding globulin (SHBG) may be regulated by insulin. The aim of this study was to test the hypothesis that these steroid-binding proteins are markers of insulin resistance and obesity in adult patients with the
Circulating sex hormone-binding globulin (SHBG), corticosteroid-binding globulin (CBG), and total and calculated free cortisol were measured in 206 overweight subjects to investigate whether or not they were markers of insulin resistance. Measurements were carried out on two occasions 36 months
Previous studies conducted in adult obese patients have shown that glucocorticoid receptor and corticosteroid-binding globulin gene polymorphisms influence cortisol-driven obesity and metabolic parameters. We investigated the impact of these polymorphisms in prepubertal obese children that were
Factors influencing sex-hormone binding globulin (SHBG) concentrations in obesity are poorly understood. Preliminary observations suggest that dietary lipids may be involved and there are data confirming a direct inhibiting effect of insulin. Since only some obese subjects show lowered SHBG levels,
OBJECTIVE
To investigate the effects of weight loss on sex hormone-binding globulin (SHBG) in massively obese males and whether normal SHBG concentrations could be obtained regardless or not of the achievement of normal body weight values.
METHODS
Sera were collected for SHBG determination from 63
OBJECTIVE
We hypothesized that oligomenorrhea (menstrual cyclicity ≥42 days), hyperandrogenism, low levels of sex hormone-binding globulin (SHBG), childhood insulin, and metabolic syndrome (MetS) at age 14 years would predict MetS and class III obesity (body mass index ≥40 kg/m(2)) at age 24
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