PMID- 34163200 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220424 IS - 1178-7007 (Print) IS - 1178-7007 (Electronic) IS - 1178-7007 (Linking) VI - 14 DP - 2021 TI - Influence of Low Total Triiodothyronine Levels on Bone Turnover Markers in Type 2 Diabetes Mellitus. PG - 2727-2733 LID - 10.2147/DMSO.S309079 [doi] AB - PURPOSE: The aim of this study was to investigate whether low total triiodothyronine (TT3) could affect bone turnover in patients with type 2 diabetes mellitus (T2DM). MATERIALS AND METHODS: This is a cross-sectional study that recruited 577 patients with T2DM, 141 patients formed the low TT3 group (TT3<1.30nmol/L) and 436 patients formed the control group (TT3>/=1.30nmol/L), and the low TT3 group was further subdivided into four groups based on the TT3 level. To investigate whether TT3 level is associated with poor glycemic control, all participants were divided into high glycosylated hemoglobin (HbA1c) group and low HbA1c group using HbA1c 10.5% as the boundary. RESULTS: The levels of OC and PINP were significantly lower in the low TT3 group compared with the control group (P < 0.05). TT3 positively correlated with OC and PINP (r = 0.219, P = 0.009; r = 0.208, P = 0.019) in the low TT3 group, and this positive correlation still existed after adjusting for other factors in multilinear regression analysis. Next, we want to find a cut-off point to prevent osteoporosis, we divided the patients in the low TT3 group into four groups based on the TT3 level, the levels of OC and PINP were significantly lower in the TT3 < 1.00 nmol/L group than in the TT3 >/= 1.00 nmol/L groups. CONCLUSION: In patients with T2DM, low TT3 levels are associated with impaired bone formation. What's more, bone formation was significantly impaired when TT3 was <1.00 nmol/L. CI - (c) 2021 Li et al. FAU - Li, Zelin AU - Li Z AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China. AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. FAU - Yu, Xian AU - Yu X AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. FAU - Ren, Luping AU - Ren L AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. FAU - Wang, Zi AU - Wang Z AD - Department of Infectious Diseases, Shanghai Fourth People' s Hospital, Shanghai, People's Republic of China. FAU - Wang, Fei AU - Wang F AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China. AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. FAU - Jia, Yujiao AU - Jia Y AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China. AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. FAU - Chen, Shuchun AU - Chen S AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China. AD - Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People's Republic of China. AD - Hebei Key Laboratory of Metabolic Diseases, Shijiazhuang, Hebei, People's Republic of China. LA - eng PT - Journal Article DEP - 20210616 PL - New Zealand TA - Diabetes Metab Syndr Obes JT - Diabetes, metabolic syndrome and obesity : targets and therapy JID - 101515585 PMC - PMC8215934 OTO - NOTNLM OT - bone turnover markers OT - low TT3 level OT - thyroid hormones OT - type 2 diabetes mellitus COIS- The authors report no conflicts of interest in this work. EDAT- 2021/06/25 06:00 MHDA- 2021/06/25 06:01 PMCR- 2021/06/16 CRDT- 2021/06/24 06:30 PHST- 2021/03/01 00:00 [received] PHST- 2021/05/11 00:00 [accepted] PHST- 2021/06/24 06:30 [entrez] PHST- 2021/06/25 06:00 [pubmed] PHST- 2021/06/25 06:01 [medline] PHST- 2021/06/16 00:00 [pmc-release] AID - 309079 [pii] AID - 10.2147/DMSO.S309079 [doi] PST - epublish SO - Diabetes Metab Syndr Obes. 2021 Jun 16;14:2727-2733. doi: 10.2147/DMSO.S309079. eCollection 2021.