PMID- 34151809 OWN - NLM STAT- MEDLINE DCOM- 20210915 LR - 20210915 IS - 1875-8908 (Electronic) IS - 1387-2877 (Linking) VI - 82 IP - 3 DP - 2021 TI - Elevated Plasma Free Fatty Acid Susceptible to Early Cognitive Impairment in Type 2 Diabetes Mellitus. PG - 1345-1356 LID - 10.3233/JAD-210403 [doi] AB - BACKGROUND: Elevated free fatty acid (FFA) induces lipotoxicity, attributed to diabetes and cognitive decline. Sterol regulatory element-binding protein-1c (SREBP-1c) regulates lipid metabolism. OBJECTIVE: We investigated the roles of FFA in mild cognitive impairment (MCI) of type 2 diabetes mellitus (T2DM) patients and determine its association with rs11868035 polymorphism. METHODS: We recruited 191 Chinese T2DM patients into two groups through Montreal Cognitive Assessment. Demographic and clinical data were collected, multiple domain cognitive functions were tested, plasma FFA levels were measured through ELISA, and SREBP-1c rs11868035 genotype was detected using the Seqnome method. RESULTS: In comparison with the healthy-cognition group (n = 128), the MCI group (n = 63) displayed lower glucose control (p = 0.012) and higher plasma FFA level (p = 0.021), which were independent risk factors of MCI in T2DM patients in multivariate regression analysis (OR = 1.270, p = 0.003; OR = 1.005, p = 0.036). Additionally, the plasma FFA levels of MCI patients were positively correlated with Stroop color word test-C time scores (r = 0.303, p = 0.021) and negatively related to apolipoprotein A1 levels (r = -0.311, p = 0.017), which are associated positively with verbal fluency test scores (r = 0.281, p = 0.033). Both scores reflected attention ability and executive function. Moreover, the G allele carriers of rs11868035 showed higher digit span test scores than non-carriers in T2DM patients (p = 0.019) but without correlation with plasma FFA levels. CONCLUSION: In T2DM, elevated plasma level of FFA, when combined with lower apolipoprotein A1 level portends abnormal cholesterol transport, were susceptible to early cognitive impairment, especially for attention and execution deficits. The G allele of SREBP-1c rs11868035 may be a protective factor for memory. FAU - Zhu, Wenwen AU - Zhu W AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - Xu, Lan AU - Xu L AD - The Affiliated Wuxi People's Hospital of Nanjing Medical University, Xuzhou, China. FAU - Zhang, Haoqiang AU - Zhang H AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - Tian, Sai AU - Tian S AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - An, Ke AU - An K AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - Cao, Wuyou AU - Cao W AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - Shi, Jijing AU - Shi J AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. AD - School of Medicine, Southeast University, Nanjing, China. FAU - Tang, Wei AU - Tang W AD - Department of Endocrinology, Geriatric Hospital of Nanjing Medical University, Nanjing, China. FAU - Wang, Shaohua AU - Wang S AD - Department of Endocrinology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Alzheimers Dis JT - Journal of Alzheimer's disease : JAD JID - 9814863 RN - 0 (Biomarkers) RN - 0 (Fatty Acids, Nonesterified) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers/blood MH - China/epidemiology MH - Cognitive Dysfunction/*blood/*diagnosis/epidemiology MH - Diabetes Mellitus, Type 2/*blood/*diagnosis/epidemiology MH - Disease Susceptibility/*blood/diagnosis/epidemiology MH - Fatty Acids, Nonesterified/*blood MH - Female MH - Humans MH - Male MH - Middle Aged MH - Risk Factors OTO - NOTNLM OT - Free fatty acid OT - lipid profile OT - mild cognitive impairment OT - sterol regulatory element-binding protein-1c OT - type 2 diabetes mellitus. EDAT- 2021/06/22 06:00 MHDA- 2021/09/16 06:00 CRDT- 2021/06/21 08:50 PHST- 2021/06/22 06:00 [pubmed] PHST- 2021/09/16 06:00 [medline] PHST- 2021/06/21 08:50 [entrez] AID - JAD210403 [pii] AID - 10.3233/JAD-210403 [doi] PST - ppublish SO - J Alzheimers Dis. 2021;82(3):1345-1356. doi: 10.3233/JAD-210403.