Volume 1, Number 1 (Autumn 2009 -- 2009)                   BCN 2009, 1(1): 29-31 | Back to browse issues page


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Khalili M. The effect of oral administration of Withania somnifera root on formalin-induced pain in diabetic rats. BCN. 2009; 1 (1) :29-31
URL: http://bcn.iums.ac.ir/article-1-12-en.html

Abstract:  

  Abstract

 Introduction: Hyperalgesia is considered as one the marked signs of subchronic diabetes mellitus that could affect the life style of the patients. With c onsidering the potential anti-diabetic effect of the medicinal plant Withania somnifera (WS)( ashwagandha), this study was designed to investigate the analgesic effect of WS on formalin-induced nociceptive responses (standard formalin test) in diabetic rats.

Methods: Rats were divided into control, WS-treated control, diabetic, sodium salicylate (SS)-treated control and diabetic and WS-treated diabetic groups. For induction of diabetes, streptozotocin (STZ) was used at a single dose. The treatment groups received oral administration of ashwagandha -mixed rat pellet (6.25%) for two months.

 Results: The results showed that diabetic rats exhibited a higher score of pain at both phases of the formalin test and WS-treated diabetic rats exhibited a lower nociceptive score at both phases of the test (p<0.05). Meanwhile, SS administration significantly reduced pain score only at chronic phase of the test in the diabetic group (p<0.01).

  Discussion: Taken together, these results indicate that two-month administration of ashwagandha could attenuate nociceptive score in an experimental model of diabetes mellitus and this may be considered as a potential treatment for painful diabetic neuropathy.

 

Type of Study: Original |
Received: 2009/07/27

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