Balkan Journal of Medical Genetics

ASSOCIATION BETWEEN THE CATECHOL-O-METHYLTRANSFERASE Val158Met POLYMORPHISM WITH SUSCEPTIBILITY AND SEVERITY OF CARPAL TUNNEL SYNDROME
Erkol İnal E1,*, Eroğlu P2, Görükmez O3, Özemri Sağ Ş4, Yakut T4
*Corresponding Author: Dr. Esra Erkol İnal, Department of Physical Medicine and Rehabilitation, Süleyman Demirel University, Faculty of Medicine, Afyon yolu, Çünür, Isparta, Turkey. Tel: +90-246-211-9280. GSM: +90-507-563-6511. Fax: +90-246-211-2830. E-mail: esraerkol@hotmail.com
page: 43

INTRODUCTION

Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper extremity [1]. Patients with CTS may have different pain sensations. [2]. There is rising interest in the genetic predisposition to the painful conditions as they may be helpful in explaining the different pain responses to the same painful stimuli [3]. Three single nucleotide polymorphisms (SNPs) were accepted to impact pain perception: catechol-O-methyltransferase (COMT) Val158Met (rs4680), brain derived neurotrophic factor Val66Met and μ-opioid receptor 1 A118G [4,5]. The COMT is an enzyme that metabolizes catecholamines such as dopamine, norepinephrine or epinephrine and has been reported to participate in the pathogenesis of several neuropsychiatric disorders [6]. The COMT gene is one of the several genes taking part in nociceptive processing; however, its role remains controversial. The COMT gene Val158Met SNP leads to a substitution of valine with methionine at codon 158 on chromosome 22q11. This substitution results in differences in the COMT enzyme activity [7]. The presence of the valine allele results in high enzymatic activity, whereas the presence of the methionine allele is linked to low enzymatic activity [8]. The Met/Met genotype was linked to increased pain sensitivity because of low enzymatic activity that leads the accumulation of catecholamines, whereas the Val/Val genotype results in reduced pain sensitivity. In only one study was the COMT gene Val158Met SNP found not to be related to CTS development but was associated with increased perception of pain and higher disability scores [9]. However, this result is not conclusive. Therefore, we aimed to determine the associations between the COMT gene Val158Met SNP and clinical and functional status of CTS.

Number 27 VOL. 27 (2), 2024	Number 27 VOL. 27 (1), 2024
Number 26 Number 26 VOL. 26(2), 2023 All in one	Number 26 VOL. 26(2), 2023
Number 26 VOL. 26, 2023 Supplement	Number 26 VOL. 26(1), 2023
Number 25 VOL. 25(2), 2022	Number 25 VOL. 25 (1), 2022
Number 24 VOL. 24(2), 2021	Number 24 VOL. 24(1), 2021
Number 23 VOL. 23(2), 2020	Number 22 VOL. 22(2), 2019
Number 22 VOL. 22(1), 2019	Number 22 VOL. 22, 2019 Supplement
Number 21 VOL. 21(2), 2018	Number 21 VOL. 21 (1), 2018
Number 21 VOL. 21, 2018 Supplement	Number 20 VOL. 20 (2), 2017
Number 20 VOL. 20 (1), 2017	Number 19 VOL. 19 (2), 2016
Number 19 VOL. 19 (1), 2016	Number 18 VOL. 18 (2), 2015
Number 18 VOL. 18 (1), 2015	Number 17 VOL. 17 (2), 2014
Number 17 VOL. 17 (1), 2014	Number 16 VOL. 16 (2), 2013
Number 16 VOL. 16 (1), 2013	Number 15 VOL. 15 (2), 2012
Number 15 VOL. 15, 2012 Supplement	Number 15 Vol. 15 (1), 2012
Number 14 14 - Vol. 14 (2), 2011	Number 14 The 9th Balkan Congress of Medical Genetics
Number 14 14 - Vol. 14 (1), 2011	Number 13 Vol. 13 (2), 2010
Number 13 Vol.13 (1), 2010	Number 12 Vol.12 (2), 2009
Number 12 Vol.12 (1), 2009	Number 11 Vol.11 (2),2008
Number 11 Vol.11 (1),2008	Number 10 Vol.10 (2), 2007
Number 10 10 (1),2007	Number 9 1&2, 2006
Number 9 3&4, 2006	Number 8 1&2, 2005
Number 8 3&4, 2004	Number 7 1&2, 2004
Number 6 3&4, 2003	Number 6 1&2, 2003
Number 5 3&4, 2002	Number 5 1&2, 2002
Number 4 Vol.3 (4), 2000	Number 4 Vol.2 (4), 1999
Number 4 Vol.1 (4), 1998	Number 4 3&4, 2001
Number 4 1&2, 2001	Number 3 Vol.3 (3), 2000
Number 3 Vol.2 (3), 1999	Number 3 Vol.1 (3), 1998
Number 2 Vol.3(2), 2000	Number 2 Vol.1 (2), 1998
Number 2 Vol.2 (2), 1999	Number 1 Vol.3 (1), 2000
Number 1 Vol.2 (1), 1999	Number 1 Vol.1 (1), 1998

About the journal ::: Editorial ::: Subscription ::: Information for authors ::: Contact