The effect of testosterone level on metabolic syndrome: a cross-sectional study.

BACKGROUND: Metabolic syndrome (MS) may reduce circulating testosterone and, at the same time, low testosterone levels may lead to MS. Thus, identifying problems regarding sex hormones and examining their effects on the pathogenesis of MS is important to prevent serious complications of the condition, such as diabetes or cardiovascular diseases. AIMS: This study aimed to investigate the correlations between MS-related parameters and androgen levels. METHODS: A total of 108 males [median age 48.5 years (min/max = 21/77 years)] were included in the study. Blood pressure and anthropometric measurements (body mass index, waist circumference, hip circumference, thigh circumference, neck circumference, and length of index and ring finger) were performed. Biochemical analysis was assessed. Additionally, total testosterone, free testosterone, and sex hormone binding globulin levels were investigated. RESULTS: Weak negative correlations were observed between testosterone levels and several anthropometric measures/glucose metabolisms (p < 0.05). The highest correlation was between total testosterone levels and body mass index (rho= -0.390, p < 0.001) CONCLUSION: According to our results, controlling weight, one of the preventable risk factors, can have a positive effect on testosterone levels and, therefore, on the cardiovascular system through different mechanisms.

Diabetes mellitus and phytotherapy in Turkey.

This study reports a literature review aimed to analyse various studies related to the use of phytotherapy in diabetes mellitus in Turkey in order to provide additional information for healthcare professionals. The incidence of Diabetes Mellitus is rising and many of the diabetics frequently use herbal treatments along with modern medical treatment for glycaemic control and/or improve their well-being. Several electronic databases (such as Medline and Pubmed) were searched for 1990-2010 period (till May, 2010) and 33 related articles were analysed. Many studies--mostly animal trials- have been conducted in this field. Among the herbs most-commonly used along with modern medical therapies and also in folkloric medicine, we searched for bitter melon, cinnamon, fenugreek, olive leaf, black seed and white mulberry. Studies conducted in this field have produced conflicting results and, the necessity to conduct randomized, placebo-controlled clinical human studies to develop new drugs from herbs, as in the case of metformin, still remains important. Besides, further studies are required to address the issues of standardization and quality control of existing preparations. More importantly, healthcare professionals caring for diabetic patients need to be aware of phytotherapy to incorporate phytomedicine into their practices and should undertake more responsibility in relation to these kind of therapies that are commonly-used throughout the world.

Serum fibroblast growth factor 21 levels in polycystic ovary syndrome.

AIM: This study was designed to measure serum fibroblast growth factor 21 (FGF21) levels in patients with polycystic ovary syndrome (PCOS) and healthy subjects. METHODS: A total of 37 women were evaluated. Serum levels FGF21, glucose, lipid profile, hormones (follicle-stimulating hormone, luteinising hormone, oestradiol, testosterone, thyroid stimulating hormone, prolactin and insulin) were determined in 24 PCOS (15 subjects of PCOS BMI < 25 kg/m2, 9 subjects of PCOS BMI ≥ kg/m2) and 13 control group (BMI < 25 kg/m2). RESULTS: Serum FGF21 levels were higher in the PCOS group [99.5 (173.7) pg/ml] than in the control group [52.0 (88.0) pg/ml]. LH and T are significantly higher in PCOS cases (respectively; p < 0.05, p < 0.01). A positive correlation was found between FGF21 and luteinising hormone and testosterone (respectively; r = 0.43 p = 0.007, r = 0.38, p = 0.02). Multivariate discriminant analysis showed that BMI, triglyceride, HOMA-IR, fasting glucose with rise of FGF21 were found significant in PCOS. CONCLUSION: Our study indicates that FGF21 in cases with PCOS exhibit an increase along with the increase of BMI and also has a positive correlation with LH and T. Further studies are required to clarify the aetiology and effects of FGF21 in women with PCOS.

Association of hypoadiponectinemia with metabolic syndrome in patients with polycystic ovary syndrome.

Patients with polycystic ovary syndrome (PCOS) have an increased prevalence of metabolic syndrome (MBS). Hypoadiponectinemia is closely associated with MBS. The aim of our study was to evaluate the association of adiponectin levels with MBS in patients with PCOS. We studied 60 patients with PCOS and 60 age-matched control subjects. Serum adiponectin, fasting glucose, triglycerides, high-density lipoprotein (HDL) levels, blood pressure and waist circumference were measured for each subject. The results showed that 33% of patients with PCOS were diagnosed with MBS; this was 11.7% in the control group (p<0.01). Adiponectin levels were significantly lower in PCOS patients with MBS than PCOS patients without MBS (p<0.001). After adjustment for body mass index (BMI), adiponectin levels were correlated negatively with waist circumference, triglycerides, diastolic blood pressure, homeostasis model assessment (HOMA) and positively with HDL. PCOS patients with adiponectin levels lower than median value had 10.5-fold higher risk of having MBS. Logistic regression analysis revealed that adiponectin levels were independently associated with the risk of having MBS, and the significance did not change after adjusting for each component of MBS. We concluded that patients with PCOS had an increased prevalence of MBS and thus an increased risk of cardiovascular disease. Hypoadiponectinemia was independently associated with MBS in these patients. Adiponectin as an endogenous biologically relevant modulator of vascular remodeling may have a role in the development of MBS in PCOS patients.

Comparison of the clinical efficacy of flutamide and spironolactone plus ethinyloestradiol/cyproterone acetate in the treatment of hirsutism: a randomised controlled study.

INTRODUCTION: Hirsutism is commonly a consequence of ovarian androgen over-production. Polycystic ovary syndrome (PCOS) or peripheral hypersensitivity to normal androgen circulating levels (idiopathic hirsutism) can be the underlying cause. Several drugs with anti-androgenic properties, such as cyproterone acetate (CPA), spironolactone and flutamide have been used to treat hirsutism, but the efficacy of these drugs has yet to be fully elucidated. The objective of this study was to compare the effectiveness of flutamide, and spironolactone plus a combination tablet of 2 mg CPA/35 microg ethinyloestradiol (EE) in the treatment of hirsutism. METHODS: A prospective randomised clinical study was conducted in a tertiary care hospital setting. Twenty-nine women with hirsutism as a consequence of PCOS or idiopathic hirsutism were randomly assigned to receive 250 mg/day flutamide alone or 100 mg/day spironolactone plus a combination tablet of 2 mg CPA/35 microg EE, for 6 months. Patients' hormonal and lipid profiles were evaluated. Hirsutism was graded according to the modified Ferriman-Gallwey (mF-G) score, and side effects were monitored. RESULTS: A significant decrease in mF-G scores was observed in the flutamide (from 11.2+/-3.3 to 7.6+/-4.0) and spironolactone plus CPA/EE (from 9.9+/-1.9 to 7.1+/-2.0) groups. However, there was no statistically significant difference between the two groups. After flutamide therapy, total cholesterol levels decreased significantly but no significant change was observed in any other lipid parameters or in the patients' hormone profiles. After spironolactone plus CPA/EE therapy, levels of luteinising hormone, total testosterone and free testosterone significantly decreased and triglyceride levels increased. No patients were found to have abnormal liver function test results. CONCLUSION: Flutamide and spironolactone plus CPA/EE are effective drugs in the treatment of hirsutism.

Acute adrenal crisis together with unilateral adrenal mass caused by isolated tuberculosis of adrenal gland.

OBJECTIVE: To describe a patient admitted with acute adrenocortical failure and a right adrenal mass without evidence of tuberculosis, who was ultimately diagnosed with isolated adrenal tuberculosis after postoperative histopathologic evaluation. METHODS: A case report is presented, with clinical, laboratory, and imaging findings. We also discuss potential factors that may complicate the diagnosis of tuberculosis. RESULTS: A 61-year-old man was admitted with symptoms and signs of acute adrenal crisis. The patient had an erythrocyte sedimentation rate of 30 mm in 1 hour, a negative tuberculin skin test, a 6-cm right adrenal mass, and left adrenal nodularity in conjunction with normal findings on a computed tomographic scan of the chest. He recovered dramatically after intravenous corticosteroid treatment. Investigation, including acid-fast staining and cultures for tuberculosis of all available specimens, gastroduodenoscopy and rectosigmoidoscopy, intestinal x-ray imaging, and autoantibody studies, did not disclose the diagnosis. Subsequently, bilateral adrenalectomy revealed isolated tuberculosis of the adrenal glands on histopathologic evaluation. Quadruple antituberculous therapy was initiated, and continued follow-up of the patient is scheduled. CONCLUSION: Our case indicates that acute or chronic adrenocortical failure can occur as a result of tuberculosis of the adrenal gland, despite the absence of clinical and laboratory evidence of tuberculosis.

Homocysteine and fibrinogen changes with L-thyroxine in subclinical hypothyroid patients.

The aim of the present study was to evaluate plasma total homocysteine (Hcys) and serum fibrinogen concentrations in subclinical hypothyroid (SH) and overt hypothyroid patients before and after L-thyroxine (LT4) replacement and to compare them in euthyroid subjects. Fifteen SH and 20 hypothyroid premenopausal women were recruited in the study. We measured fasting plasma levels of Hcys and serum levels of free thyroxine (fT4), free triiodothyronine (fT3), thyrotropin (TSH), folate, vitamin B12, fibrinogen, renal functions, and lipid profiles in patients with SH and overt hypothyroid patients before and after LT4 treatment. Eleven healthy women were included in the study as a control group. Pretreatment Hcys levels were similar in SH and control subjects, whereas mean fibrinogen level of SH patients was higher than that of control subjects (p<0.05). Baseline Hcys (p<0.01) and fibrinogen (p<0.001) levels of the overt hypothyroid patients were significantly higher than those of the healthy subjects, and the pretreatment Hcys levels decreased with LT4 treatment (p<0.001). In conclusion, our data support that SH is not associated with hyperhomocysteinemia and Hcys does not appear to contribute to the increased risk for atherosclerotic disease in patients with SH.

Adiponectin is an independent determinant of insulin resistance in women with polycystic ovary syndrome.

OBJECTIVE: Polycystic ovary syndrome (PCOS) is frequently associated with insulin resistance and a consequent increased risk of metabolic diseases. The aim of the present study was to investigate the role of adiponectin in insulin resistance in PCOS women. MATERIALS AND METHODS: Forty-seven patients with PCOS and 23 control subjects, matched for age and body mass index (BMI), were enrolled in the study. Clinical, metabolic and hormonal parameters and adiponectin levels were measured, and HOMA-IR score (homeostasis model assessment-insulin resistance index) was calculated for each subject. RESULTS: There was no difference in adiponectin levels between PCOS patients and the control group. However, adiponectin levels were negatively correlated with obesity-associated parameters and HOMA-IR score in PCOS patients and controls. As adiponectin is modulated by BMI we adjusted for BMI among the PCOS patients, and found a negative correlation between adiponectin levels and HOMA-IR score (r = -0.51, p < 0.001). Adiponectin and BMI were independent determinants of insulin resistance in PCOS patients (adjusted R2 = 0.66, p < 0.001). CONCLUSION: Adiponectin did not seem to be actively involved in the pathogenesis of PCOS. However, adiponectin levels were independently associated with insulin resistance in PCOS patients, suggesting that adiponectin might play a role in the complicated metabolic abnormalities of PCOS.

Leptin levels increase during flutamide therapy in women with polycystic ovary syndrome.

AIM: To evaluate the serum leptin levels and the effects of flutamide treatment on the leptin levels in women with polycystic ovary syndrome (PCOS). METHODS: 20 women with PCOS and 20 controls were enrolled in the study. Leptin levels and leptin response to an oral glucose tolerance test were assessed in both groups before and after a 4-week flutamide therapy period. RESULTS: The leptin levels were similar in both groups at baseline. In the PCOS group, leptin levels and area under curve for leptin levels increased significantly after flutamide treatment. CONCLUSIONS: Women with PCOS had similar leptin levels to those of controls with similar age and body mass index. Flutamide treatment led to increased leptin levels and leptin responses to oral glucose tolerance tests in PCOS patients. Further studies are needed to gain insights into the clinical consequences of these effects of flutamide.

Plasma homocysteine levels in hyperthyroid patients.

Hyperhomocysteinemia is a risk factor for premature atherosclerotic vascular diseases. It is known that plasma homocysteine levels are higher in hypothyroid patients compared to healthy subjects. The aim of our study was to assess plasma total homocysteine concentrations in hyperthyroid patients before and after treatment when euthyroid status was reached and compare them with control group. Thirteen hyperthyroid patients (age, 42.9 +/- 15.6 year) and eleven healthy subjects (age, 39.9 +/- 12.5 year) were involved in the study. Plasma levels of homocysteine and serum cholesterol, triglyceride, HDL cholesterol, urea, creatinine, vitamin B12, folate were measured before and after treatment. LDL cholesterol and creatinine clearances were calculated. Pretreatment homocycteine levels of the hyperthyroid patients were significantly lower than healthy controls (11.5 +/- 3.6 micromol/L vs. 15.1 +/- 4.5 micromol/L, respectively, p<0.05). Posttreatment homocysteine levels were significantly higher than pretreatment levels (13.9 +/- 6.3 micromol/L vs. 11.5 +/- 3.6 micromol/L, respectively, p<0.05) and posttreatment creatinine clearance were lower than pretreatment level (103.5 +/- 12.7 ml/min vs. 114.2 +/- 9.3 ml/min, respectively, p<0.01). Lower homocysteine levels in hyperthyroidism can be partially explained with the changes in creatinine clearance.