The effect of orofacial complete Freund's adjuvant treatment on the expression of migraine-related molecules

Migraine is a neurovascular primary headache disorder, which causes significant socioeconomic problems worldwide. The pathomechanism of disease is enigmatic, but activation of the trigeminovascular system (TS) appears to be essential during the attack. Migraine research of recent years has focused o...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Körtési Tamás
Tuka Bernadett
Nyári Aliz
Vécsei László
Tajti János
Dokumentumtípus: Cikk
Megjelent: 2019
Sorozat:JOURNAL OF HEADACHE AND PAIN 20 No. 1
doi:10.1186/s10194-019-0999-7

mtmt:30659927
Online Access:http://publicatio.bibl.u-szeged.hu/16063
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245 1 4 |a The effect of orofacial complete Freund's adjuvant treatment on the expression of migraine-related molecules  |h [elektronikus dokumentum] /  |c  Körtési Tamás 
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490 0 |a JOURNAL OF HEADACHE AND PAIN  |v 20 No. 1 
520 3 |a Migraine is a neurovascular primary headache disorder, which causes significant socioeconomic problems worldwide. The pathomechanism of disease is enigmatic, but activation of the trigeminovascular system (TS) appears to be essential during the attack. Migraine research of recent years has focused on neuropeptides, such as calcitonin gene-related peptide (CGRP) and pituitary adenylate cyclase-activating polypeptide 1-38 (PACAP1-38) as potential pathogenic factors and possible therapeutic offensives. The goal of present study was to investigate the simultaneous expression of CGRP and precursor of PACAP1-38 (preproPACAP) in the central region of the TS in a time-dependent manner following TS activation in rats.The right whisker pad of rats was injected with 50 μl Complete Freund's Adjuvant (CFA) or saline. A mechanical allodynia test was performed with von Frey filaments before and after treatment. Transcardial perfusion of the animals was initiated 24, 48, 72 and 120 h after injection, followed by the dissection of the nucleus trigeminus caudalis (TNC). After preparation, the samples were stored at - 80 °C until further use. The relative optical density of CGRP and preproPACAP was analyzed by Western blot. One-way ANOVA and Kruskal-Wallis followed by Tukey post hoc test were used to evaluate the data. Regression analysis was applied to explore the correlation between neuropeptides expression and hyperalgesia.Orofacial CFA injection resulted in significant CGRP and preproPACAP release in the TNC 24, 48, 72 and 120 h after the treatment. The level of neuropeptides reached its maximum at 72 h after CFA injection, corresponding to the peak of facial allodynia. Negative, linear correlation was detected between the expression level of neuropeptides and value of mechanonociceptive threshold.This is the first study which suggests that the expression of CGRP and preproPACAP simultaneously increases in the central region of activated TS and it influences the formation of mechanical hyperalgesia. Our results contribute to a better understanding of migraine pathogenesis and thereby to the development of more effective therapeutic approaches. 
700 0 1 |a Tuka Bernadett  |e aut 
700 0 1 |a Nyári Aliz  |e aut 
700 0 1 |a Vécsei László  |e aut 
700 0 1 |a Tajti János  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/16063/1/KortesiT.TheeffectoforofacialcompleteFreundsandjuvanttreatmentontheexp.ofmigraine-relatedmolecules.pdf  |z Dokumentum-elérés