Abstract:
:What is the impact of intentional weight loss and regain on serum androgens in women? We conducted an ancillary analysis of prospectively collected samples from a randomized controlled trial. The trial involved supervised 10% weight loss (8.5 kg on average) with diet and exercise over 4-6 months followed by supervised intentional regain of 50% of the lost weight (4.6 kg on average) over 4-6 months. Participants were randomized prior to the partial weight regain component to either continuation or cessation of endurance exercise. Analytic sample included 30 obese premenopausal women (mean age of 40 ± 5.9 years, mean baseline body mass index (BMI) of 32.9 ± 4.2 kg/m(2)) with metabolic syndrome. We evaluated sex hormone binding globulin (SHBG), total testosterone (T), free androgen index (FAI), and high molecular weight adiponectin (HMWAdp). Insulin, homeostasis model assessment (HOMA), and quantitative insulin sensitivity check index (QUICKI), and visceral adipose tissue (VAT) measured in the original trial were reanalyzed for the current analytic sample. Insulin, HOMA, and QUICKI improved with weight loss and were maintained despite weight regain. Log-transformed SHBG significantly increased from baseline to weight loss, and then significantly decreased with weight regain. LogFAI and logVAT decreased similarly and increased with weight loss followed by weight regain. No changes were found in logT and LogHMWAdp. There was no significant difference in any tested parameters by exercise between the groups. SHBG showed prominent sensitivity to body mass fluctuations, as reduction with controlled intentional weight regain showed an inverse relationship to VAT and occurred despite stable HMWAdp and sustained improvements with insulin resistance. FAI showed opposite changes to SHBG, while T did not change significantly with weight. Continued exercise during weight regain did not appear to impact these findings.
journal_name
Syst Biol Reprod Medjournal_title
Systems biology in reproductive medicineauthors
Aubuchon M,Liu Y,Petroski GF,Thomas TR,Polotsky AJdoi
10.1080/19396368.2016.1177619subject
Has Abstractpub_date
2016-08-01 00:00:00pages
283-9issue
4eissn
1939-6368issn
1939-6376journal_volume
62pub_type
杂志文章abstract::We aimed to survey the monogenic causes of disorders of sex development (DSD) and thereby its prevalence in India. This study revealed mutations resulting in androgen insensitivity syndrome, 5α-reductase type 2 deficiency, and gonadal dysgenesis were commonly reported. Intriguingly, AR deficits were the most prevalent...
journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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journal_title:Systems biology in reproductive medicine
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