The anti-inflammatory effects of venlafaxine in the rat model of carrageenan-induced paw edema

Hajhashemi, Valiollah and Minaiyan, Mohsen and Banafshe, Hamid Reza and Mesdaghinia, Azam and Abed, Alireza (2015) The anti-inflammatory effects of venlafaxine in the rat model of carrageenan-induced paw edema. Iranian Journal of Basic Medical Sciences, 18 (7). pp. 654-658.

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Abstract

Objective(s):Recently anti-inflammatory effects of antidepressants have been demonstrated. Venlafaxine belongs to newer antidepressants with serotonin norepinephrine reuptake inhibition property. The pain alleviating properties of venlafaxine in different pain models such as neurogenic pain, diabetic neuropathy, and fibromyalgia have been demonstrated. Anti-inflammatory effects of venlafaxine and also its underlying mechanisms remain unclear. The present study was designed to evaluate the anti-inflammatory effects of venlafaxine and determine possible underlying mechanisms. Materials and Methods: We examined the anti-inflammatory effects of intraperitoneal (IP) and intracerebroventricular (ICV) administration of venlafaxine in the rat model of carrageenan-induced paw edema. Results: Our results showed that both IP (50 and 100 mg/kg) and ICV (50 and 100 μg/rat) injection of venlafaxine inhibited carrageenan-induced paw edema. Also IP and ICV administration of venlafaxine significantly decreased myeloperoxidase (MPO) activity and interleukin (IL)-1β and tumor necrosis factor (TNF)-α production. Finally, we tried to reverse the anti-inflammatory effect of venlafaxine by yohimbine (5 mg/kg, IP), an alpha2-adrenergic antagonist. Our results showed that applied antagonist failed to change the anti-inflammatory effect of venlafaxine. Conclusion: These results demonstrated that venlafaxine has potent anti-inflammatory effect which is related to the peripheral and central effects of this drug. Also we have shown that anti-inflammatory effect of venlafaxine is mediated mostly through the inhibition of IL-1β and TNF-α production and decreases MPO activity in the site of inflammation.

Item Type: Article
Subjects: QV pharmacology
Divisions: Journals > Iranian J Basic Medical Sciences
Depositing User: ijbms ijbms
Date Deposited: 02 Oct 2017 23:41
Last Modified: 02 Oct 2017 23:41
URI: http://eprints.mums.ac.ir/id/eprint/7325

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