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. 2017 Nov;16(5):6234-6239.
doi: 10.3892/mmr.2017.7395. Epub 2017 Aug 29.

Association between endothelin‑1 and fibromyalgia syndrome

Seong-Su Nah  1 , Hwayoung Lee  2 , Yeongseon Hong  1 , Jiyun Im  2 , Hansol Won  2 , Sung-Hae Chang  1 , Hyung-Ki Kim  2 , Jun-Tack Kwon  2 , Hak-Jae Kim  2
Affiliations

Association between endothelin‑1 and fibromyalgia syndrome

Seong-Su Nah et al. Mol Med Rep. 2017 Nov.

Abstract

Fibromyalgia syndrome (FMS) is characterized by widespread chronic musculoskeletal pain, stiffness and pressure hyperalgesia at soft tissue tender points. Patients with FMS may exhibit a tendency towards cold extremities and cold‑induced vasospasm. Endothelin‑1 (EDN1) is a potent vasoconstrictor that is mainly produced by endothelial cells. The present study aimed to determine whether plasma expression levels avvnd single‑nucleotide polymorphism (SNP; rs1800541) of the EDN1 gene were associated with FMS and/or any of its clinical variables. Plasma EDN1 levels were assessed by ELISA, and SNP genotypes were determined using polymerase chain reaction‑high‑resolution melting curve analysis. Patients with the TG genotype and the G allele may have an elevated risk of FMS. In addition, patients with FMS with the TG genotype and/or T allele exhibited higher plasma EDN1 levels compared with healthy controls. EDN1 levels increased significantly in patients with FMS compared with normal controls. In addition, EDN1 SNP was found to be associated with susceptibility to FMS.

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