Diabetes Metab J.  2020 Feb;44(1):103-112. 10.4093/dmj.2018.0160.

Combined Aerobic and Resistance Exercise Training Reduces Circulating Apolipoprotein J Levels and Improves Insulin Resistance in Postmenopausal Diabetic Women

Affiliations
  • 1Division of Endocrinology and Metabolism, Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea. drsskim7@gmail.com
  • 2Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
  • 3Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. ykim2@bidmc.harvard.edu
  • 4Department of Physical Education, Kyungnam University College of Education, Changwon, Korea.
  • 5Department of Marine Sports, Pukyong National University, Busan, Korea.
  • 6Nutrition Service Team, Pusan National University Hospital, Busan, Korea.
  • 7Kim Yong Ki Internal Medicine Clinic, Busan, Korea.
  • 8Division of Nephrology, Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea.

Abstract

BACKGROUND
Circulating apolipoprotein J (ApoJ) is closely associated with insulin resistance; however, the effect of exercise on circulating ApoJ levels and the association of ApoJ with metabolic indices remain unknown. Here, we investigated whether a combined exercise can alter the circulating ApoJ level, and whether these changes are associated with metabolic indices in patients with type 2 diabetes mellitus.
METHODS
Postmenopausal women with type 2 diabetes mellitus were randomly assigned into either an exercise (EXE, n=30) or control (CON, n=15) group. Participants in the EXE group were enrolled in a 12-week program consisting of a combination of aerobic and resistance exercises. At baseline, 4, 8, and 12 weeks, body composition and metabolic parameters including homeostatic model assessment of insulin resistance (HOMA-IR) and serum ApoJ levels were assessed.
RESULTS
In the EXE group, ApoJ levels decreased 26.3% and 19.4%, relative to baseline, at 8 and 12 weeks, respectively. Between-group differences were significant at 8 and 12 weeks (P<0.05 and P<0.001, respectively). In the EXE group, 12 weeks of exercise resulted in significant decreases in body weight, percent body fat, and HOMA-IR indices. Concurrently, weight-adjusted appendicular skeletal muscle mass (ASM/wt) was increased in the EXE group compared with the CON group. Importantly, changes in the ApoJ level were significantly correlated with changes in ASM/wt.
CONCLUSION
Exercise training resulted in a significant decrease in the circulating ApoJ level, with changes in ApoJ associated with an improvement in some insulin resistance indices. These data suggest that circulating ApoJ may be a useful metabolic marker for assessing the effects of exercise on insulin resistance.

Keyword

Apolipoprotein J; Exercise; Insulin resistance; Sarcopenia

MeSH Terms

Adipose Tissue
Apolipoproteins*
Body Composition
Body Weight
Clusterin*
Diabetes Mellitus, Type 2
Exercise
Female
Humans
Insulin Resistance*
Insulin*
Muscle, Skeletal
Sarcopenia
Apolipoproteins
Clusterin
Insulin
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