PMID- 32662704 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20220531 IS - 1473-2300 (Electronic) IS - 0300-0605 (Print) IS - 0300-0605 (Linking) VI - 48 IP - 7 DP - 2020 Jul TI - Non-linear relationship between gamma-glutamyl transferase and type 2 diabetes mellitus risk: secondary analysis of a prospective cohort study. PG - 300060520937911 LID - 10.1177/0300060520937911 [doi] LID - 0300060520937911 AB - OBJECTIVE: To investigate the association between gamma-glutamyl transferase (GGT) and type 2 diabetes mellitus (T2DM) risk. METHODS: This was a secondary analysis based on a publicly available DRYAD dataset that included 15 444 study participants that received medical examinations at a single centre in Japan between 2004 and 2015. Crude, minimally-adjusted and fully-adjusted regression models were used to evaluate the relationship between GGT levels and T2DM risk. RESULTS: The study participants (mean +/- SD age of 43.72 +/- 8.90 years; 8415 of 15 444 [54.49%] were male) were followed-up for a median of 1968 days (5.39 years). After adjusting for potential covariates, a non-linear relationship between the baseline GGT level and T2DM incidence was observed. The inflection point for T2DM risk was 10 IU/l GGT; below this point, the T2DM incidence increased by 1.18-fold per unit change in GGT. Above this point, the association between GGT and the incidence rate of T2DM became nonsignificant. CONCLUSION: Baseline GGT exhibited a non-linear association with T2DM incidence. Elevated GGT levels should be incorporated into routine screening for individuals at high risk of T2DM, allowing for early intervention targeting GGT to potentially reduce T2DM-related morbidity. FAU - Wang, Hao AU - Wang H AD - Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan Province, China. FAU - Li, Lixia AU - Li L AUID- ORCID: 0000-0002-7382-2190 AD - Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan Province, China. FAU - Zhang, Shouyan AU - Zhang S AUID- ORCID: 0000-0003-2902-1668 AD - Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan Province, China. LA - eng PT - Journal Article PL - England TA - J Int Med Res JT - The Journal of international medical research JID - 0346411 RN - EC 2.3.2.2 (gamma-Glutamyltransferase) RN - EC 2.3.2.2 (gamma-glutamyltransferase, human) SB - IM MH - Adult MH - *Diabetes Mellitus, Type 2/diagnosis/epidemiology MH - Female MH - Humans MH - Incidence MH - Japan/epidemiology MH - Male MH - Middle Aged MH - Prospective Studies MH - Risk Factors MH - *gamma-Glutamyltransferase PMC - PMC7361500 OTO - NOTNLM OT - Gamma-glutamyl transferase OT - non-linearity OT - type 2 diabetes mellitus EDAT- 2020/07/15 06:00 MHDA- 2021/05/15 06:00 PMCR- 2020/07/14 CRDT- 2020/07/15 06:00 PHST- 2020/07/15 06:00 [entrez] PHST- 2020/07/15 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/07/14 00:00 [pmc-release] AID - 10.1177_0300060520937911 [pii] AID - 10.1177/0300060520937911 [doi] PST - ppublish SO - J Int Med Res. 2020 Jul;48(7):300060520937911. doi: 10.1177/0300060520937911.