PMID- 26607467 OWN - NLM STAT- MEDLINE DCOM- 20160921 LR - 20220321 IS - 1879-0712 (Electronic) IS - 0014-2999 (Linking) VI - 769 DP - 2015 Dec 15 TI - Favorable effects of vildagliptin on metabolic and cognitive dysfunctions in streptozotocin-induced diabetic rats. PG - 297-305 LID - S0014-2999(15)30373-3 [pii] LID - 10.1016/j.ejphar.2015.11.033 [doi] AB - Progression of diabetes mellitus is accompanied by metabolic disorders together with psychological deficits including cognitive dysfunctions. Herein, we used a murine streptozotocin (STZ)-induced diabetes to investigate the beneficial effects of vildagliptin not only on metabolic abnormalities, but also on diabetes-induced cognitive decline. Sixty rats were divided randomly and equally into 2 groups; one remains normal and the other serves as STZ- induced diabetic. Both groups were further divided equally into 2 groups; one received vehicle and the other received oral vildagliptin for 8 weeks. Cognitive behavior was assessed using novel object recognition test. Blood samples were collected to measure metabolic parameters and dipeptidyl peptidase (DPP)-IV activity. Brains were removed and investigated for the levels of inflammatory and oxidative stress markers malondialdehyde (MDA), superoxide dismutase (SOD) and tumor necrosis factor-alpha (TNF-alpha), in addition to brain-derived neurotrophic factor (BDNF) and relative expression of nuclear factor kappa B (NF-kappaB)/p65. Treatment of STZ-induced diabetic rats with vildagliptin increased their body weight and corrected diabetes-induced memory and learning impairment. Moreover, vildagliptin significantly decreased serum levels of glucose and lipids (except high density lipoprotein) together with brain MDA, TNF-alpha, serum DPP-IV activities and NF-kappaB/p65 gene expression. On the other hand, vildagliptin significantly increased brain BDNF, SOD as well as serum insulin. Results suggested that vildagliptin has a protective role in counteracting both metabolic abnormalities and memory deficits in diabetic rats, possibly via its anti-hyperglycemic, anti-inflammatory, antioxidant effects, together with reduction of brain NF-kappaB/p65 over expression. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - El Batsh, Maha M AU - El Batsh MM AD - Department of Clinical Pharmacology, Faculty of Medicine, Menoufia University, Egypt. FAU - El Batch, Manal M AU - El Batch MM AD - Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Egypt. FAU - Shafik, Noha M AU - Shafik NM AD - Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Egypt. Electronic address: nohashafik2008@yahoo.com. FAU - Younos, Ibrahim H AU - Younos IH AD - Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Sciences, Sultan Qaboos University, Oman. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151121 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuroprotective Agents) RN - 0 (Nitriles) RN - 0 (Pyrrolidines) RN - 0 (Transcription Factor RelA) RN - 0 (Tumor Necrosis Factor-alpha) RN - I6B4B2U96P (Vildagliptin) RN - PJY633525U (Adamantane) SB - IM MH - Adamantane/*analogs & derivatives/pharmacology MH - Animals MH - Behavior, Animal/drug effects MH - Body Weight/drug effects MH - Brain/drug effects/metabolism MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cognition/*drug effects MH - Diabetes Mellitus, Experimental/*metabolism/physiopathology MH - Male MH - Neuroprotective Agents/*pharmacology MH - Nitriles/*pharmacology MH - Oxidative Stress/drug effects MH - Pyrrolidines/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Transcription Factor RelA/metabolism MH - Tumor Necrosis Factor-alpha/metabolism MH - Vildagliptin OTO - NOTNLM OT - Cognition OT - Diabetes mellitus OT - Dipeptidyl peptidase-IV OT - Streptozotocin OT - Streptozotocin (PubChem CID: 2733335) OT - Vildagliptin OT - Vildagliptin (PubChem CID: 11077541) EDAT- 2015/11/27 06:00 MHDA- 2016/09/23 06:00 CRDT- 2015/11/27 06:00 PHST- 2015/08/15 00:00 [received] PHST- 2015/11/16 00:00 [revised] PHST- 2015/11/18 00:00 [accepted] PHST- 2015/11/27 06:00 [entrez] PHST- 2015/11/27 06:00 [pubmed] PHST- 2016/09/23 06:00 [medline] AID - S0014-2999(15)30373-3 [pii] AID - 10.1016/j.ejphar.2015.11.033 [doi] PST - ppublish SO - Eur J Pharmacol. 2015 Dec 15;769:297-305. doi: 10.1016/j.ejphar.2015.11.033. Epub 2015 Nov 21.