Antidepressant activity of quercetin, a bioflavonoid, in streptozotocin-induced diabetic mice |
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Authors: | Anjaneyulu Muragundla Chopra Kanwaljit Kaur Indupal |
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Affiliation: | Department of Pharmacology, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India. |
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Abstract: | Depression is highly prevalent in diabetics and is associated with poor glucose regulation and increased risk of diabetic complications. Identification and effective treatment of comorbid depression are increasingly being considered essential components of clinical care of diabetics. In the present study, the antidepressant activity of quercetin (50 and 100 mg/kg, i.p.), a bioflavonoid, was evaluated using the Porsolt forced swimming-induced behavioral despair test in control and 6-week-streptozotocin-induced diabetic mice. The effect of quercetin was compared with that of the classical antidepressants fluoxetine (5 mg/kg, i.p.) and imipramine (15 mg/kg, i.p.). Streptozotocin-induced diabetic mice exhibited prolonged immobility duration during the test as compared with age-matched control mice. Quercetin dose-dependently reduced the immobility period in diabetic mice, and this effect was comparable to that of fluoxetine (5 mg/kg, i.p.) and imipramine (15 mg/kg, i.p.). Fluoxetine and imipramine significantly lowered the immobility time in naive mice also, but quercetin failed to induce any antidepressant activity in naive mice. The results of our preliminary study indicate that quercetin has the potential to be employed as a therapy for depression associated with diabetes. |
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