منابع مشابه
Exercise counteracts declining hippocampal function in aging and Alzheimer's disease.
Alzheimer's disease (AD) afflicts more than 5.4 million Americans and ranks as the most common type of dementia (Thies and Bleiler, 2011), yet effective pharmacological treatments have not been identified. Substantial evidence indicates that physical activity enhances learning and memory for people of all ages, including individuals that suffer from cognitive impairment. The mechanisms that und...
متن کاملTesticular function in a birth cohort of young men.
STUDY QUESTION By investigating a birth cohort with a high ongoing participation rate to derive an unbiased population, what are the parameters and influences upon testicular function for a population not selected with regard to fertility? SUMMARY ANSWER While varicocele, cryptorchidism and obesity may impact on human testicular function, most common drug exposures and the presence of epididy...
متن کاملEffect of polymorphisms in selected genes involved in pituitary-testicular function on reproductive hormones and phenotype in aging men.
CONTEXT Polymorphisms in genes involved in regulation, biosynthesis, metabolism, and actions of testicular sex hormones may influence hormone balance and phenotype of aging men. OBJECTIVE We investigated the relationships between polymorphisms in genes related to pituitary-testicular endocrine function and health status. DESIGN AND SETTING Using cross-sectional baseline data, we conducted a...
متن کاملThe rate of change in declining steroid hormones: a new parameter of healthy aging in men?
Research on healthy aging in men has increasingly focused on age-related hormonal changes. Testosterone (T) decline is primarily investigated, while age-related changes in other sex steroids (dehydroepiandrosterone [DHEA], estradiol [E2], progesterone [P]) are mostly neglected. An integrated hormone parameter reflecting aging processes in men has yet to be identified. 271 self-reporting healthy...
متن کاملTestosterone, sexuality, and erectile function in aging men.
Human aging is associated with many changes, which resemble those seen with deficiencies of sex steroids or growth hormone and with cortisol excess. Among these are decreases in lean body mass (LBM) and muscle strength, loss of bone mineral, increase in body fat, and, in men, reduced libido and erectile function. Circulating total and free testosterone (T) decrease progressively with age in men...
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ژورنال
عنوان ژورنال: International Journal of Impotence Research
سال: 2003
ISSN: 0955-9930,1476-5489
DOI: 10.1038/sj.ijir.3901029