کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10743548 | 1047899 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The evidence for seasonal variations of testosterone in men
ترجمه فارسی عنوان
شواهد تغییرات فصلی تستوسترون در مردان
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کلمات کلیدی
تستوسترون، تنوع فصلی، هیپوگنادیسم، ویتامین دی، ملاتونین،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
سالمندی
چکیده انگلیسی
Ample evidence exists to support the concept of diurnal variations in testosterone levels; however, substantiation for seasonal fluctuations is sparse and inconsistent. Since circadian disparities exist, laboratory screening for hypogonadism has traditionally been conducted using serum testosterone levels obtained in the early morning. Should circannual variability of testosterone be confirmed, it would make the monitoring of testosterone levels more difficult while forcing the development of seasonal reference standards to allow for comparison. Moreover, decisions to begin treatment and adjustment of practice patterns would likely follow. This review thoroughly explores all of the available evidence concerning seasonal variations in testosterone levels. The impacts of melatonin, vitamin D, sleep-wake cycles, light exposure, physical activity, BMI, and waist circumference are also discussed. Current research suggests that while some evidence exists to support the notion of seasonal testosterone variations, the discussed inconsistencies preclude the incorporation of this concept into current clinical standards.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Maturitas - Volume 74, Issue 3, March 2013, Pages 208-212
Journal: Maturitas - Volume 74, Issue 3, March 2013, Pages 208-212
نویسندگان
Ryan P. Smith, Robert M. Coward, Jason R. Kovac, Larry I. Lipshultz,