Abstract:
:Aerobic exercise training and weight loss (AEX+WL) improves insulin sensitivity in overweight adults; however, the underlying pathways are incompletely understood. Fetuin-A, a hepatokine that inhibits insulin signaling, may be involved in the salutary effects of AEX+WL. Therefore, we examined the effects of 6-month AEX+WL on plasma fetuin-A levels (36-48 hours after the last bout of exercise), aerobic capacity (VO2max), body composition, glucose tolerance, and insulin sensitivity (M) in 16 sedentary, overweight-obese older men (age = 60 ± 2 years, BMI = 31 ± 1 kg/m2) with no history of cardiovascular disease or diabetes. At baseline, fetuin-A levels correlated directly with adiposity and had a borderline inverse correlation with M. After AEX+WL, body weight decreased by ~10 kg, while both VO2max and M increased by 16% (P < 0.005 for all). Contrary to our hypothesis, plasma fetuin-A levels increased after AEX+WL (1.16 ± 0.10 g/L versus 1.70 ± 0.19 g/L, P = 0.006). This increase was unrelated to changes in body composition or glucose metabolism, but directly correlated with changes in VO2max (r = 0.57, P < 0.05). Thus, in overweight-to-obese older men, AEX+WL appears to increase plasma fetuin-A levels. Although not associated with improvements in insulin sensitivity, this increase in fetuin-A was related to improvements in aerobic capacity and could be representative of the cardioprotective effects of AEX+WL in older men.
journal_name
J Diabetes Resjournal_title
Journal of diabetes researchauthors
Blumenthal JB,Gitterman A,Ryan AS,Prior SJdoi
10.1155/2017/1492581subject
Has Abstractpub_date
2017-01-01 00:00:00pages
1492581eissn
2314-6745issn
2314-6753journal_volume
2017pub_type
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journal_title:Journal of diabetes research
pub_type: 杂志文章
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journal_title:Journal of diabetes research
pub_type: 杂志文章,meta分析,评审
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journal_title:Journal of diabetes research
pub_type: 杂志文章,评审
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更新日期:2013-01-01 00:00:00
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journal_title:Journal of diabetes research
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journal_title:Journal of diabetes research
pub_type: 杂志文章
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pub_type: 杂志文章,评审
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更新日期:2016-01-01 00:00:00
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journal_title:Journal of diabetes research
pub_type: 杂志文章
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journal_title:Journal of diabetes research
pub_type: 杂志文章
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journal_title:Journal of diabetes research
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journal_title:Journal of diabetes research
pub_type: 杂志文章,评审
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更新日期:2016-01-01 00:00:00
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journal_title:Journal of diabetes research
pub_type: 杂志文章
doi:10.1155/2020/6666403
更新日期:2020-11-24 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Journal of diabetes research
pub_type: 杂志文章
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更新日期:2020-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-01-01 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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pub_type: 杂志文章
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