Volume 12, Issue 6 (November & December - in Press 2021)                   BCN 2021, 12(6): 0-0 | Back to browse issues page

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Shahidi S, Komaki A, Raoufi S, Salehi I, Zarei M, Mahdian M. Ellagic Acid ameliorates Streptozotocin-Induced Diabetic Hyperalgesia in Rat: Involvement of Oxidative Stress. BCN. 2021; 12 (6)
URL: http://bcn.iums.ac.ir/article-1-1709-en.html
1- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
Background/Aim: Hyperalgesia is one of the current complications of diabetes mellitus that Oxidative stress and inflammation have principal role in its development. Ellagic Acid (EA) as a herbal component, has some biological activities, including antioxidant and anti-inflammatory effects. This study was designed to evaluate the possible beneficial effect of EA on hyperalgesia in streptozotocin (STZ)-induced diabetic rat.
Materials and Methods: Rats were divided into control(vehicle received), diabetic, EA (25, 50 mg/kg)-treated control and  EA(25, 50 mg/kg)-treated diabetic groups. Diabetes was induced by a single intraperitoneal (IP) injection of streptozotocin (STZ) (60 mg/Kg). EA was administered daily by oral gavage for 4 weeks. Hyperalgesia was assessed using tail flick (TF) and hot plate (HP) tests. Also, oxidative stress markers including malondialdehyde (MDA), total oxidant status (TOS) and total antioxidant capacity (TAC) in the serum were evaluated.
Results: Diabetic animals showed marked reductions in TF and HP latencies, elevation of serum MDA level and TOS and diminution of serum TAC compared to controls significantly. Treatment of Diabetic rats with EA ameliorated reduction of TF latency at the dose of 25 mg/kg and HP latency at the dose of 50 mg/kg. Furthermore EA significantly increased TAC and decreased MDA level at dose of 50 mg/kg and reduced TOS at both doses in the serum of diabetic animals. In EA treated normal rats we could see no significant alterations in the parameters studied.
Conclusion: These results displayed potent antinociceptive effect of EA in diabetic rats via attenuating oxidative stress. This proposes therapeutic potential of EA for damping diabetic hyperalgesia.
Type of Study: Original | Subject: Behavioral Neuroscience
Received: 2020/02/19 | Accepted: 2020/11/1 | Published: 2021/07/19

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