Pterostilbene ameliorates type-2 diabetes mellitus-Induced depressive-like behavior by mitigating insulin resistance, inflammation and ameliorating HPA axis dysfunction in rat brain

被引:9
|
作者
Patil, Rashmi [1 ]
Aswar, Urmila [1 ,3 ]
Vyas, Nishant [2 ]
机构
[1] Bharati Vidyapeeth, Poona Coll Pharm, Dept Pharmacol, Erandwane 411038, Pune, India
[2] Log Life Sci Pvt Ltd, Pune, India
[3] Bharati Vidyapeeth, Poona Coll Pharm, Dept Pharmacol, Pune, Maharashtra, India
关键词
Depression; Inflammation; Insulin resistance; Pterostilbene; Sirtuin; 1; Type 2 diabetes mellitus; OXIDATIVE-STRESS; HEALTH; SIRT1; MECHANISMS; SYMPTOMS; IMPACT;
D O I
10.1016/j.brainres.2023.148494
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
One of the most serious mental health comorbidities associated with diabetes mellitus is depression. The occurrence is almost double in type 2 diabetes mellitus (T2DM) compared with the general population. Pterostilbene (PTE), a dimethylated analog of resveratrol, has been reported for significant neuroprotective, antiinflammatory, hypolipidemic, hypoglycaemic and antioxidant effects. However, its effect on diabetes-induced depression-like behavior (DID) has not been studied. The current study aimed at studying the effects of PTE on depressive-like behavior in male Wistar rats with T2DM. It was induced by single dose administration of nicotinamide (NA) and streptozotocin (STZ). On day 21, forced swim test (FST) was conducted for the confirmation of DID. Rats demonstrating depressive-like behavior were treated with PTE (10, 20 and 40 mg/kg), metformin (MET; 500 mg/kg) and fluoxetine (FLX; 10 mg/kg) for 28 days, orally. At the end of the treatment, behavioral assessment for depression, blood glucose (BG) and lipid profile, oxidative stress markers, gene expression of Sirtuin 1 (SIRT1) and histopathological parameters were investigated. PTE significantly reduced weight loss and mitigated depressive-like behavior paradigms such as sucrose preference test (SPT), resident intruder test (RIT) and open field test (OFT). It significantly restored BG, lipid and liver profile, creatinine and antioxidant level. It Improved glucose tolerance, insulin resistance (IR) and reduced cortisol level as well as inflammatory markers. It showed improved morphology of the pancreas, brain, liver and kidney. Gene expression studies revealed that, PTE significantly increased SIRT1 expression. PTE by its virtue to maintain BG, reduced IR, amelioration of the HPA axis, anti-inflammatory, antioxidant activity and improvement of SIRT1 gene expression proved to be effective in the treatment of DID-like behavior in rats.
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页数:14
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