The effect of vitamin D on morphine preference in rats: Possible biochemical and DRD2–GDNF signaling

Autor: Mahbubeh Saeedfar, Abolfazl Ardjmand, Behrang Alani, Amir Ghaderi, Hamid Reza Banafshe, Mohammad Esmaeil Shahaboddin, Gholamreza Ghavipanjeh
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Brain and Behavior, Vol 13, Iss 2, Pp n/a-n/a (2023)
Druh dokumentu: article
ISSN: 2162-3279
89987918
DOI: 10.1002/brb3.2877
Popis: Abstract Introduction Despite half a century of research on vitamin D (Vit. D), its link to substance abuse and dependence has only been discussed in recent decades. Evidence also shows the involvement of Vit. D in the evolution of dopaminergic neurons in the nucleus accumbens, an increase in the expression of tyrosine hydroxylase, and the regulation of dopaminergic processes. The novel idea for this work is taken from a hypothesis given about the effectiveness of Vit. D on dopamine signaling pathway. It is therefore presumed that Vit. D can be considered an effective therapeutic approach for narcotic addiction and substance abuse. Methods The animals were assigned into six groups (control, vehicle, Morphine [Mor.], and Vit. D [250, 500, and 1000 IU/kg, i.p.]). Following each conditioning session in a conditioned place preference (CPP) model, the animals received Vit. D. Afterward, the locomotor activity of the animals was assessed using open‐field apparatus. Malondialdehyde (MDA), nitric oxide (NO), catalase (CAT), superoxide dismutase (SOD), thiol, and total antioxidant capacity (TAC) were measured in the brain. The relative DRD2 and GDNF expressions (%) were also measured in the hippocampus. Results Vit. D administration after Mor. caused a significant increase in the place preference index in the acquisition phase (p
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