PMID- 24824210 OWN - NLM STAT- MEDLINE DCOM- 20150224 LR - 20221207 IS - 1531-2267 (Electronic) IS - 1094-8341 (Linking) VI - 46 IP - 14 DP - 2014 Jul 15 TI - High cardiorespiratory fitness can reduce glycated hemoglobin levels regardless of polygenic risk for Type 2 diabetes mellitus in nondiabetic Japanese men. PG - 497-504 LID - 10.1152/physiolgenomics.00027.2014 [doi] AB - High cardiorespiratory fitness (CRF) is associated with a reduced risk of Type 2 diabetes mellitus (T2DM) and improved beta-cell function; genetic factors also determine these risks. This cross-sectional study investigated whether CRF modifies the association of polygenic risk of T2DM with glucose metabolism in nondiabetic Japanese men. Fasting plasma glucose, insulin, and glycated hemoglobin (HbA1c) levels were measured in 174 Japanese men (age: 20-79 yr). beta-Cell function and insulin resistance were evaluated by calculating HOMA-beta and HOMA-IR, respectively. CRF was assessed by measuring maximal oxygen uptake (V̇o2max). Subjects were divided into the low and high CRF groups within each age group according to the median V̇o2max. Eleven single nucleotide polymorphisms (SNPs) associated with T2DM were analyzed and used to calculate genetic risk score (GRS); subjects were divided into the low, middle, and high GRS groups. The high GRS group had higher HbA1c levels than the low GRS group in both the low and high CRF groups (P < 0.05). Furthermore, the individuals with a high GRS had a lower HOMA-beta than those with a low GRS regardless of CRF (P < 0.05). In multiple linear regression analysis, although GRS was a significant predictor of HbA1c (beta = 0.153, P = 0.025), V̇o2max was also associated with HbA1c (beta = -0.240, P = 0.041) independent of GRS. These results suggest that CRF is associated with HbA1c levels independent of GRS derived from T2DM-related SNPs; however, it does not modify the association of GRS with increased HbA1c or impaired beta-cell function. CI - Copyright (c) 2014 the American Physiological Society. FAU - Tanisawa, Kumpei AU - Tanisawa K AD - Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; Department of Genomics for Longevity and Health, Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan; FAU - Ito, Tomoko AU - Ito T AD - Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; FAU - Sun, Xiaomin AU - Sun X AD - Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; FAU - Ise, Ryuken AU - Ise R AD - Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; FAU - Oshima, Satomi AU - Oshima S AD - Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; and. FAU - Cao, Zhen-Bo AU - Cao ZB AD - Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; and. FAU - Sakamoto, Shizuo AU - Sakamoto S AD - Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; and Institute of Advanced Active Aging Research, Waseda University, Tokorozawa, Saitama, Japan. FAU - Tanaka, Masashi AU - Tanaka M AD - Department of Genomics for Longevity and Health, Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan; FAU - Higuchi, Mitsuru AU - Higuchi M AD - Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan; and Institute of Advanced Active Aging Research, Waseda University, Tokorozawa, Saitama, Japan mhiguchi@waseda.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140513 PL - United States TA - Physiol Genomics JT - Physiological genomics JID - 9815683 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Insulin) RN - 0 (hemoglobin A1c protein, human) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Adult MH - Aged MH - Asian People/genetics MH - Blood Glucose/genetics/metabolism MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/genetics/*metabolism MH - Glucose/genetics/metabolism MH - Glycated Hemoglobin/genetics/*metabolism MH - Humans MH - Insulin/genetics/metabolism MH - Insulin Resistance/genetics MH - Insulin-Secreting Cells/metabolism MH - Male MH - Middle Aged MH - Polymorphism, Single Nucleotide/genetics MH - Risk MH - Risk Factors MH - Young Adult OTO - NOTNLM OT - HbA1c OT - cardiorespiratory fitness OT - polygenic risk OT - beta-cell function EDAT- 2014/05/16 06:00 MHDA- 2015/02/25 06:00 CRDT- 2014/05/15 06:00 PHST- 2014/05/15 06:00 [entrez] PHST- 2014/05/16 06:00 [pubmed] PHST- 2015/02/25 06:00 [medline] AID - physiolgenomics.00027.2014 [pii] AID - 10.1152/physiolgenomics.00027.2014 [doi] PST - ppublish SO - Physiol Genomics. 2014 Jul 15;46(14):497-504. doi: 10.1152/physiolgenomics.00027.2014. Epub 2014 May 13.