PMID- 36732561 OWN - NLM STAT- MEDLINE DCOM- 20230206 LR - 20230317 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 13 IP - 1 DP - 2023 Feb 2 TI - Low thigh muscle strength in relation to myosteatosis in patients with type 2 diabetes mellitus. PG - 1957 LID - 10.1038/s41598-022-24002-1 [doi] LID - 1957 AB - This study aimed to investigate the association of thigh muscle fat infiltration by quantitative MRI with muscle strength in patients with type 2 diabetes mellitus (T2DM). Seventy T2DM patients and sixty control subjects (71 males; age: 52 +/- 8 years) underwent 3.0T MRI and isokinetic muscle strength measurements to obtain the skeletal muscle index (SMI), intermuscular adipose tissue (IMAT) proton density fat fraction (PDFF), intramuscular fat (IMF) PDFF, peak torque (PT) and total work (TW) of knee extensors and flexors. The differences of measurements between T2DM patients and asymptomatic volunteers were compared. Multivariate regression analysis was used to determine significant predictors of thigh extension and flexion strength. The SMI, IMAT and IMF PDFF of thigh muscles in T2DM patients were higher than that in the control group (p < 0.001), while PT and TW were lower than those in the control subjects (p < 0.05). Both IMF and IMAT PDFF were negatively correlated with PT, TW in participants with T2DM (extensors: r = - 0.72, - 0.70, p < 0.001; r = - 0.62, - 0.56, p < 0.05. flexors: r = - 0.37, - 0.43, p < 0.05; r = - 0.39, - 0.46, p < 0.05). Moderate and strong correlations between HOMA-IR and muscle strength measurements, muscle PDFFs were observed in extensors and flexors. IMF PDFF and age were the statistically significant predictor of PT and TW of extensors of thigh in multivariate regression analysis. Therefore, the thigh muscle PDFF increased was associated with muscle strength decreased in T2DM patients beyond SMI. Age are also important factors influencing thigh muscle PDFF and strength in T2DM patients. CI - (c) 2023. The Author(s). FAU - Huang, Yilong AU - Huang Y AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Yan, Jun AU - Yan J AD - Department of Medical Imaging, The Affiliated Qujing Hospital of Kunming Medical University, Qujing, China. FAU - Zhu, Hongli AU - Zhu H AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Zhang, Zhenguang AU - Zhang Z AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Jiang, Yuanming AU - Jiang Y AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Zhang, Xuxiang AU - Zhang X AD - Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Wu, Yiran AU - Wu Y AD - Department of Rehabilitation, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Lu, Jiahang AU - Lu J AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Cun, Hanxue AU - Cun H AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - He, Bo AU - He B AD - Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China. hebo_ydyy@qq.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230202 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Male MH - Humans MH - Adult MH - Middle Aged MH - *Thigh MH - *Diabetes Mellitus, Type 2/complications MH - Muscle, Skeletal/diagnostic imaging MH - Muscle Strength/physiology MH - Magnetic Resonance Imaging PMC - PMC9895033 COIS- The authors declare no competing interests. EDAT- 2023/02/03 06:00 MHDA- 2023/02/07 06:00 PMCR- 2023/02/02 CRDT- 2023/02/02 23:42 PHST- 2022/09/07 00:00 [received] PHST- 2022/11/08 00:00 [accepted] PHST- 2023/02/02 23:42 [entrez] PHST- 2023/02/03 06:00 [pubmed] PHST- 2023/02/07 06:00 [medline] PHST- 2023/02/02 00:00 [pmc-release] AID - 10.1038/s41598-022-24002-1 [pii] AID - 24002 [pii] AID - 10.1038/s41598-022-24002-1 [doi] PST - epublish SO - Sci Rep. 2023 Feb 2;13(1):1957. doi: 10.1038/s41598-022-24002-1.