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This study is being done to understand how testosterone, the major male sex hormone, controls the pituitary gland's secretion of growth hormone (GH). GH is an important metabolic hormone, which controls sugar; fat and protein use in the body and maintains muscle strength and bone calcium content. Both testosterone and GH decline in older men. The age-related fall in these hormones probably contributes to relative frailty, reduced quality of life, bone loss, muscle wasting and impaired sexual function.
Repletion of testosterone in older men drives pulsatile GH secretion via conjoint facilitation of feedforward by the primary secretagogues GHRH and GHRP and repression of feedback by the dominant inhibitor, somatostatin; and, in corollary, testosterone acts via aromatization to estradiol and/or reduction to 5 alpha-dihydrotestosterone
Allocation: Randomized, Control: Placebo Control, Intervention Model: Parallel Assignment, Masking: Double-Blind
anastrazole or dutasteride
Published on BioPortfolio: 2014-08-27T03:45:23-0400
Subjects will be randomized into 4 study groups: 1. Placebo; 2. Anastrazole and Testosterone; 3. Dutasteride and Testosterone; and 4. Testosterone only. A 2 step euglycemic clamp, body com...
This study will examine the safety and potential benefit of the medication dutasteride to help men reduce or stop drinking alcohol.
The combination of testosterone and dutasteride is intended for use in hypogonadal men. This study will evaluate the bioavailability and pharmacokinetics of various doses of testosterone a...
The purpose of this research study is to determine if the study drug Dutasteride taken before and after Laser TURP(Transurethral Resection of the Prostate), can provide effective and safe,...
This randomized, double-blind, placebo-controlled, six-month parallel-group study assess efficacy and safety of dutasteride 0.5mg once daily in Chinese patients with Benign Prostatic Hyper...
Benign prostatic hyperplasia (BPH) is a common disease found in elderly men and 5α-reductase (5α-R) inhibitors are a commonly used treatment option. 5α-reduced steroids are compounds that play a ro...
Is aging a disease? It does not matter because aging is already treated using a combination of several clinically-available drugs, including rapamycin. Whether aging is a disease depends on arbitrary ...
Evaluation of the impact of dutasteride/tamsulosin combination therapy on libido in sexually active men with lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH): a post hoc analysis of a prospective randomized placebo-controlled study.
Five-α reductase inhibitor (5ARI) therapy has been associated with sexual dysfunction in some patients. This study assessed the impact of a fixed-dose combination of the 5ARI dutasteride 0.5 mg and ...
The aging face is a popular topic in modern medicine. To understand and treat unwanted signs of aging, it is imperative to understand the biological and physical causes and contributing factors to fac...
The objective of this study was to evaluate the effect of dry-aging on meat quality and microbiological properties of grass-fed beef loins. At 7 d postmortem, eighteen bone-in loins (M. longissimus lu...
The process of aging due to changes in the structure and elasticity of the skin over time. It may be a part of physiological aging or it may be due to the effects of ultraviolet radiation, usually through exposure to sunlight.
A 5-ALPHA-REDUCTASE INHIBITOR that is reported to inhibit both type-1 and type2 isoforms of the enzyme and is used to treat BENIGN PROSTATIC HYPERPLASIA.
Component of the NATIONAL INSTITUTES OF HEALTH. Through basic and clinical biomedical research and training, it conducts and supports research into the nature of the aging process and diseases associated with the later stages of life. The Institute was established in 1974.
The decline in the function of the IMMUNE SYSTEM during aging.
Changes in the organism associated with senescence, occurring at an accelerated rate.
Diabetes Diabetes Endocrine Obesity Oxycontin Renal Disease Thyroid Disorders Endocrinology is the study of the endocrine glands and the hormones that they secrete (Oxford Medical Dictionary). There are several groups of h...
Endocrine disorders are grouped into two categories: hormone imbalance - when a gland produces too much or too little of an endocrine hormone development of lesions (such as nodules or tumors) in the endocrine system, which may or may not affect...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...