title: Analgesic and anti-inflammatory activity of root bark of Grewia asiatica Linn. in rodents.
abstract: BACKGROUND
  Grewia asiatica Linn. (Family: Tiliaceae), called Phalsa in Hindi is an Indian medicinal plant used for a variety of therapeutic and nutritional uses. The root bark of the plant is traditionally used in rheumatism (painful chronic inflammatory condition).
  
  
  OBJECTIVE
  The present study demonstrates the analgesic and anti-inflammatory activity of root bark of G. asiatica in rodents.
  
  
  METHODS
  The methanolic extract of Grewia asiatica (MEGA) and aqueous extract of Grewia asiatica (AEGA) of the bark were prepared and subjected to phytochemical tests and pharmacological screening for analgesic and anti-inflammatory effect in rodents.
  
  
  METHODS
  Analgesic effect was studied using acetic acid-induced writhing in mice and hot plate analgesia in rats while anti-inflammatory activity was investigated using carrageenan-induced paw oedema in rats. The MEGA or AEGA was administered orally in doses of 200 and 400 mg/kg/day of body weight.
  
  
  METHODS
  Data were analysed by one-way analysis of variance followed by Dunnett's test.
  
  
  RESULTS
  The extracts showed a significant inhibition of writhing response and increase in hot plate reaction time and also caused a decrease in paw oedema. The effects were comparable with the standard drugs used.
  
  
  CONCLUSIONS
  The present study indicates that root bark of G. asiatica exhibits peripheral and central analgesic effect and anti-inflammatory activity, which may be attributed to the various phytochemicals present in root bark of G. asiatica.
authors: Department of Pharmacognosy, Vinayaka Mission's College of Pharmacy, Salem, Tamil Nadu, India.
authors: Udaybhan Singh
authors: US
authors: Paviaya
authors: Pharmacology Division, National Research Institute for Ayurveda-Siddha Human Resource Development, Gwalior, Madhya Pradesh, India.
authors: Parveen
authors: P
authors: Kumar
authors: Pharmacology Division, National Research Institute for Ayurveda-Siddha Human Resource Development, Gwalior, Madhya Pradesh, India.
authors: Manish M
authors: MM
authors: Wanjari
authors: Department of Pharmacognosy, Vinayaka Mission's College of Pharmacy, Salem, Tamil Nadu, India.
authors: S
authors: S
authors: Thenmozhi
authors: Department of Pharmacognosy, Vinayaka Mission's College of Pharmacy, Salem, Tamil Nadu, India.
authors: B R
authors: BR
authors: Balakrishnan
keywords: Analgesic; Grewia asiatica; anti-inflammatory; root bark