Accepted Article Gallic acid improves endothelial dependent vasodilatory response to histamine in mesenteric vascular bed of diabetic rats Gallic acid effect on MVB response to histamine Mohammad BADAVI *1,2,3 , Amir BAZAZ 1 , Mahin DIANAT 1,2 , Alireza SARKAKI 1,2 Address: 1- Dept. of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahwaz Iran 2- Ahvaz Physiology Research center, Ahvaz Jundishapur University of Medical Sciences, Ahwaz Iran 3- Atherosclerosis Research Center, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahwaz Iran *Corresponding Author: Dept. of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahwaz, Iran, badavim@yahoo.com, +989163132989 Abstract Background: One of the many complications that caused by diabetes mellitus is endothelial dysfunction. This study was designed to evaluate the effects of gallic acid on the mesenteric vascular bed (MVB) response to histamine in diabetic rats. This article is protected by copyright. All rights reserved. This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/jdb.12513