PMID- 37036954 OWN - NLM STAT- Publisher LR - 20230410 IS - 2046-5556 (Electronic) IS - 0264-8725 (Linking) DP - 2023 Apr 10 TI - Study on Undercarboxylated Osteocalcin in Improving Cognitive Function of Rats with Type 2 Diabetes Mellitus by Regulating PI3K-AKT-GSK/3beta Signaling Pathwaythrough medical images. PG - 1-16 LID - 10.1080/02648725.2023.2199238 [doi] AB - This paper aims to clarify the effect of Undercarboxylated osteocalcin (ucOC) on cognitive function in rats with type 2 diabetes mellitus (T2DM). This research reviewed the cognitive function of 35 diabetic patients, 33 non-diabetic patients and the serum levels of Undercarboxylated osteocalcin (ucOC) in patients. What's more, we analyzed the correlation between serum ucOC levels and cognitive function. Diabetic rats were treated with high (30 mug.kg(-1).d(-1)) and low (10 mug.kg(-1).d(-1)) doses of ucOC to investigate its effects in regulating ucOC on blood lipid, blood glucose and cognitive function. We systematically detected the phosphorylation levels of cognitive level-related proteins (PI3K, AKT, and GSK/3beta) in the hippocampus by Western Blot. Finally, PI3K-Akt pathway involved in regulating cognitive function in diabetic rats by ucOC was verified with AKT pathway inhibitor LY294002. MoCA score and serum ucOC levels were significantly reduced in patients with diabetes mellitus. ucOC could concentration-dose-dependently decrease the blood glucose and lipid levels, and improve glucose metabolism and weaken insulin resistance in diabetic rats (P < 0.001). In addition, escape latency in diabetic rats was significantly higher than that of normal rats in the Morris maze test, and ucOC dose-dependently shortened the escape latency in diabetic rats (all with P < 0.05). After using AKT pathway inhibitor, ucOC failed to shorten the escape latency in diabetic rats. In conclusion, this study explored the relevant mechanisms in inducing cognitive dysfunction of T2DM, suggesting the potential value of ucOC as a drug to improve cognitive dysfunction in patients with T2DM in clinical. FAU - Zhao, Yu AU - Zhao Y AD - Department of Geriatrics, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Yang, Lili AU - Yang L AD - Department of Cardiology, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Chen, Mei AU - Chen M AD - Department of Geriatrics, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Gao, Feng AU - Gao F AD - Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Lv, Yinghui AU - Lv Y AD - Department of Geriatrics, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Li, Xue AU - Li X AD - Department of Geriatrics, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China. FAU - Liu, Hongmin AU - Liu H AD - School of Nursing, Qiqihar Medical University, Qiqihar, China. LA - eng PT - Journal Article DEP - 20230410 PL - England TA - Biotechnol Genet Eng Rev JT - Biotechnology & genetic engineering reviews JID - 8510274 SB - IM OTO - NOTNLM OT - Morris maze test OT - PI3K-AKT-GSK/3beta signaling pathway OT - T2DM OT - Undercarboxylated osteocalcin EDAT- 2023/04/11 06:00 MHDA- 2023/04/11 06:00 CRDT- 2023/04/10 15:12 PHST- 2023/04/10 15:12 [entrez] PHST- 2023/04/11 06:00 [pubmed] PHST- 2023/04/11 06:00 [medline] AID - 10.1080/02648725.2023.2199238 [doi] PST - aheadofprint SO - Biotechnol Genet Eng Rev. 2023 Apr 10:1-16. doi: 10.1080/02648725.2023.2199238.