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Year : 2019  |  Volume : 3  |  Issue : 4  |  Page : 153-160

To investigate the role of Withania somnifera in a mouse model of posttraumatic stress disorder

1 Department of Pharmacology, Akal College of Pharmacy and Technical Education, Mastuana Sahib, Sangrur, Punjab, India
2 Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India

Correspondence Address:
Dr. Anjana Bali
Department of Pharmacology, Akal College of Pharmacy and Technical Education, Mastuana Sahib, Sangrur - 148 001, Punjab
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/hm.hm_14_19

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The present study was conducted to explore the role of Withania somnifera in posttraumatic stress disorder (PTSD) in mice. Swiss albino mice were subjected to a 2-day electric foot-shock stress of 5 min, which included 15 alternating inescapable foot shocks of 0.8 mA intensity with 10-s duration and 10-s intershock interval on the electrified grid floor. It was followed by 3 week re-exposures (on day 3, 7, and 14) in the same context (as situational reminders) for 5 min without delivering any foot-shocks. Trauma and situational reminders results a significant development of behavioral deficits and reduced serum corticosterone levels, as assessed on the 21st day. A significant development of freezing behavior was also observed in response to situational reminders on 3rd, 7th and 14th days. Repeated administration (for 21 days) of W. somnifera (50 mg/kg and 100 mg/kg) considerably restored the behavioral changes and normalized the corticosterone levels. W. somnifera led to significant reduction in the freezing behavior in response to situational reminders suggesting the inhibition of formation of aversive fear memory. It may be concluded that W. somnifera may be beneficial in preventing the PTSD symptoms in response to a traumatic event.

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