Involvement of 5-HT1B/1D receptors in the inflammatory response and oxidative stress in intestinal ischemia/reperfusion in rats

Copyright © 2020 Elsevier B.V. All rights reserved..

Acute mesenteric ischemia (AMI) is caused by an abrupt cessation of blood flow to the small intestine. Reperfusion is the return of blood flow to the ischemic bowel. Intestinal ischemia/reperfusion (I/R) leads to the formation of reactive oxygen species, local inflammatory response, and may lead to the patient's death. Pre-treatment of the intestinal may reduce the high mortality associated with AMI. 5-Hydroxytryptamine 1B (5-HT1B) and 5-HT1D receptors have anti-inflammatory and neuroprotective effects in different experimental studies. We aimed to investigate the potential involvement of these receptors in intestinal I/R injury. Firstly, we assessed the expression and localization of 5-HT1B and 5-HT1D receptors in the enteric nervous system using an immunofluorescence-based method. Intestinal I/R in rats was induced by 30 min occlusion of superior mesenteric artery and reperfusion for 2 h. Rats were randomly divided in different control and I/R groups (n = 6) receiving either vehicle, sumatriptan (5-HT1B/1D receptors agonist; 0.1 mg/kg), GR127,935 (5-HT1B/1D receptors antagonist; 0.1 mg/kg) and combination of sumatriptan (0.1 mg/kg) + GR127,935 (0.1 mg/kg) before determination of biochemical and histological parameters. In the enteric nervous system, 5-HT1B and 5-HT1D receptors were expressed 17% and 11.5%, respectively. Pre-treatment with sumatriptan decreased 5-hydroxytryptamine (5HT) level by 53%, and significantly decreased calcitonin gene-related peptide (CGRP) levels, lipid pereoxidation, neutrophil infiltration, and level of pro-inflammatory markers in the serum. Histopathologic studies also showed a remarkable decrease in intestinal tissue injury. These findings suggest that sumatriptan may inhibit intestinal injury induced by I/R through modulating the inflammatory response by activation of 5-HT1B/1D receptors.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:882

Enthalten in:

European journal of pharmacology - 882(2020) vom: 05. Sept., Seite 173265

Sprache:

Englisch

Beteiligte Personen:

Gharishvandi, Fatemeh [VerfasserIn]
Abdollahi, Alireza [VerfasserIn]
Shafaroodi, Hamed [VerfasserIn]
Mohammad Jafari, Razieh [VerfasserIn]
Pasalar, Parvin [VerfasserIn]
Dehpour, Ahmad Reza [VerfasserIn]

Links:

Volltext

Themen:

2LLH6CEB40
333DO1RDJY
5-HT1B/1D receptor
8R78F6L9VO
Calcitonin Gene-Related Peptide
GR 127935
Inflammation
Intestinal ischemia/reperfusion
JHB2QIZ69Z
Journal Article
Oxadiazoles
Oxidative stress
Piperazines
Rat
Receptor, Serotonin, 5-HT1B
Receptor, Serotonin, 5-HT1D
Serotonin
Serotonin 5-HT1 Receptor Agonists
Serotonin Antagonists
Sumatriptan

Anmerkungen:

Date Completed 13.05.2021

Date Revised 13.05.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ejphar.2020.173265

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM311531695