PMID- 30483738 OWN - NLM STAT- MEDLINE DCOM- 20190524 LR - 20211018 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 19 IP - 2 DP - 2019 Feb TI - A SIRT1 agonist reduces cognitive decline in type 2 diabetic rats through antioxidative and anti‑inflammatory mechanisms. PG - 1040-1048 LID - 10.3892/mmr.2018.9699 [doi] AB - Sirtuin 1 (SIRT1) is an NAD+‑dependent protein deacetylase that is involved in cell differentiation, aging, apoptosis, physiological rhythms, metabolic regulation, oxidative stress and numerous other important biological processes. In the present study, the ability of a sirtuin‑1 (SIRT1) agonist, SRT1720, to reduce cognitive decline in type 2 diabetes mellitus (T2DM) was investigated. Streptozotocin‑induced male Sprague‑Dawley rats were used to establish a T2DM model and the protective effect of SRT1720 and its underlying mechanisms were investigated. Body weight and fasting blood glucose (FBG) were recorded and cognitive function was measured with the Morris water maze. Levels of oxidative stress, inflammation, caspase‑3 activity and nuclear factor kappaB (NF‑kappaB) mRNA expression were detected with a series of commercial assay kits and reverse transcription‑quantitative polymerase chain reaction, respectively. Western blot analysis was performed to determine the protein expression of NF‑kappaB, endothelial nitric oxide synthase (eNOS), peroxisome proliferator‑activated receptor gamma (PPARgamma), AMP‑activated protein kinase (AMPK), heat shock 70 kDa protein (HSP70), SIRT1, nuclear factor erythroid 2‑related factor 2 (Nrf2) and heme oxygenase 1 (HO‑1). The results revealed that SRT1720 significantly increased body weight, decreased FBG, improved cognitive function and reduced the levels of proteins associated with oxidative stress and inflammation damage in T2DM rats. Additionally, SRT1720 significantly decreased NF‑kappaB p65 mRNA expression and increased eNOS and PPARgamma expression. SRT1720 significantly reduced caspase‑3 activity and HSP70 protein expression, and increased p‑AMPK, SIRT1, Nrf2 and HO‑1 protein expression. Collectively, the results indicate that SRT1720 may reduce cognitive decline in T2DM rats through antioxidative and anti‑inflammatory action via NF‑kappaB and AMPK‑dependent mechanisms. FAU - Wang, Fei AU - Wang F AD - Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China. FAU - Shang, Yanchang AU - Shang Y AD - Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing 100853, P.R. China. FAU - Zhang, Rong AU - Zhang R AD - Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China. FAU - Gao, Xiangyang AU - Gao X AD - Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China. FAU - Zeng, Qiang AU - Zeng Q AD - Health Management Institute, Chinese PLA General Hospital, Beijing 100853, P.R. China. LA - eng PT - Journal Article DEP - 20181127 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antioxidants) RN - 0 (HSP70 Heat-Shock Proteins) RN - 0 (Heterocyclic Compounds, 4 or More Rings) RN - 0 (Hypoglycemic Agents) RN - 0 (NF-E2-Related Factor 2) RN - 0 (NF-kappa B) RN - 0 (Nfe2l2 protein, rat) RN - 0 (PPAR gamma) RN - 0 (SRT1720) RN - 5W494URQ81 (Streptozocin) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) RN - EC 1.14.13.39 (Nos3 protein, rat) RN - EC 1.14.14.18 (Heme Oxygenase-1) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - EC 3.4.22.- (Casp3 protein, rat) RN - EC 3.4.22.- (Caspase 3) RN - EC 3.5.1.- (Sirt1 protein, rat) RN - EC 3.5.1.- (Sirtuin 1) SB - IM MH - AMP-Activated Protein Kinases/genetics/metabolism MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Antioxidants/*pharmacology MH - Body Weight/drug effects MH - Caspase 3/genetics/metabolism MH - Cognitive Dysfunction/chemically induced/genetics/physiopathology/*prevention & control MH - Diabetes Mellitus, Experimental/chemically induced/*drug therapy/genetics/physiopathology MH - Gene Expression Regulation/drug effects MH - HSP70 Heat-Shock Proteins/genetics/metabolism MH - Heme Oxygenase-1/genetics/metabolism MH - Heterocyclic Compounds, 4 or More Rings/*pharmacology MH - Hippocampus/drug effects/metabolism/physiopathology MH - Hypoglycemic Agents/*pharmacology MH - Male MH - Maze Learning/drug effects MH - NF-E2-Related Factor 2/genetics/metabolism MH - NF-kappa B/genetics/metabolism MH - Nitric Oxide Synthase Type III/genetics/metabolism MH - PC12 Cells MH - PPAR gamma/genetics/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Signal Transduction MH - Sirtuin 1/genetics/metabolism MH - Streptozocin MH - Tissue Culture Techniques PMC - PMC6323206 OTO - NOTNLM OT - sirtuin-1 OT - cognitive decline OT - type 2 diabetic rats OT - nuclear factor-kappaB OT - AMP-activated protein kinase EDAT- 2018/11/30 06:00 MHDA- 2019/05/28 06:00 PMCR- 2018/11/27 CRDT- 2018/11/29 06:00 PHST- 2017/10/08 00:00 [received] PHST- 2018/03/02 00:00 [accepted] PHST- 2018/11/30 06:00 [pubmed] PHST- 2019/05/28 06:00 [medline] PHST- 2018/11/29 06:00 [entrez] PHST- 2018/11/27 00:00 [pmc-release] AID - mmr-19-02-1040 [pii] AID - 10.3892/mmr.2018.9699 [doi] PST - ppublish SO - Mol Med Rep. 2019 Feb;19(2):1040-1048. doi: 10.3892/mmr.2018.9699. Epub 2018 Nov 27.