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Diabetes mellitus is associated with long-term complications affecting mainly the eyes, nerves and kidneys. One of the main underlying causes for this is damage to the lining of the small blood vessels supplying these organs with dysfunction of the endothelium (lining of the small blood vessels). Testosterone has been shown to have an effect macro (large) blood vessels with limited data available on the micro (small) blood vessels. Testosterone is recognised to have important effects on metabolism and vascular behaviour beyond the accepted effects on secondary sexual characteristics. Physiological testosterone therapy is associated with some beneficial effects on the cardiovascular system and has been used with some success to treat patients with stable angina and chronic heart failure. The investigators therefore propose to study the effects of testosterone replacement therapy in patients with hypogonadism (low testosterone levels) on the endothelium in males with type 2 diabetes. 40 diabetic patients with type 2 diabetes and low testosterone levels and erectile dysfunction (impotence) will be recruited into the study. All patients will receive testosterone replacement therapy and 10 patients will also receive Vardenafil (a drug used to treat impotence). The investigators hope to demonstrate an improvement in endothelial dysfunction by assessing biochemical markers such as nitric oxide (a chemical that causes relaxation for the blood vessels) and C-reactive protein (a chemical that can increase in patients with diabetes) as well as the effect on weight, blood pressure, diabetes control and cholesterol.
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Type 2 Diabetes
Tameside General Hospital
Not yet recruiting
Tameside Hospital NHS Foundation Trust
Published on BioPortfolio: 2014-08-27T03:15:18-0400
Men with metabolic syndrome often have lower than normal testosterone levels and low testosterone levels have been suggested to predispose for development of type2 diabetes. The aim of the...
There is increasing evidence of the linkage of type 2 diabetes with low testosterone levels in men. Testosterone treatment has shown beneficial effects on blood sugar control and obesity i...
The purpose of this study is to test the effect of testosterone treatment on glycaemic control, arterial stiffness and IMT in hypogonadal men with type 2 diabetes treated with insulin.
The purpose of this study is to examine the effect of having testosterone deficiency in men with diabetes and with obesity. The study will also evaluate the effect of testosterone therapy....
Low testosterone production, known clinically as hypogonadism, appears to be common complication of type 2 diabetes, affecting one in three diabetic men. Hypogonadism is known to be associ...
To determine the effect of testosterone on serum glucose,lipid,uric acid and insulin metabolism in male patients with type 2 diabetes mellitus.
This study set out to assess effects of testosterone replacement therapy (TRT) on parameters of metabolic syndrome and vascular function in obese hypogonadal males with type 2 diabetes mellitus (DM2).
To summarize the research evidence on promotion of testosterone for 'Low T', or age-related hypogonadism.
Type 2 diabetes is increasing worldwide, disproportionately affecting First Nations (FN) people. Identifying early-life determinants of type 2 diabetes is important to address the intergenerational bu...
We hypothesized that diabetes-related distress would vary by type of diabetes and medication regimen [Type 1 diabetes (T1DM), Type 2 diabetes with insulin use (T2DM-i), Type 2 diabetes without insulin...
The time period before the development of symptomatic diabetes. For example, certain risk factors can be observed in subjects who subsequently develop INSULIN RESISTANCE as in type 2 diabetes (DIABETES MELLITUS, TYPE 2).
A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.
Steroidal compounds related to TESTOSTERONE, the major mammalian male sex hormone. Testosterone congeners include important testosterone precursors in the biosynthetic pathways, metabolites, derivatives, and synthetic steroids with androgenic activities.
A potent androgenic metabolite of TESTOSTERONE. Dihydrotestosterone (DHT) is generated by a 5-alpha reduction of testosterone. Unlike testosterone, DHT cannot be aromatized to ESTRADIOL therefore DHT is considered a pure androgenic steroid.
A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL.
Diabetes is a lifelong condition that causes a person's blood sugar level to become too high. The two main types of diabetes are: type 1 diabetes type 2 diabetes In the UK, diabetes affects approximately 2.9 million people. There are a...
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