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Dynamic Thiol/Disulphide Homeostasis in Patients With Fibromyalgia.

ABSTRACT: Objectives:This study aims to investigate dynamic thiol/disulphide homeostasis in patients with fibromyalgia syndrome (FMS). Patients and methods:Fifty female patients with FMS (mean age 40.5±7.2 years; range 21 to 55 years) and 40 healthy female controls (mean age 39±9.4 years, range 22 to 55 years) were included in the study. Pain visual analog scale, tender points, Fibromyalgia Impact Questionnaire, and Beck Depression Inventory were evaluated. Age, body mass index (BMI), and symptom durations were also recorded. Native thiol, disulphide and total thiol levels were measured with a novel automated method. Results:Serum disulphide levels were 14.7±3.4 ?mol/L and 22.2±3.6 ?mol/L in the FMS and control groups, respectively (p<0.001). Native thiol levels were 452.1±33.8 ?mol/L and 433.5±37.6 ?mol/L in the FMS and control groups, (p=0.015), while total thiol levels were 481.7±35.6 ?mol/L and 477.5±38.9 ?mol/L in the FMS and control groups, respectively (p=0.593). In the FMS group, disulphide/native thiol percent ratios and disulphide/ total thiol percent ratios were statistically significantly lower and native/total thiol percent ratios were statistically significantly higher than those of the control group. There were no correlations between serum thiol/disulphide profiles and pain scores & clinical variables in patients with FMS. Conclusion:Because of the decreased disulphide and increased native thiol levels, the thiol/disulphide balance has shifted to the reductive side. This metabolic disturbance may have a role in the pathogenesis of FMS.


PROVIDER: S-EPMC6190990 | BioStudies | 2017-01-01T00:00:00Z


REPOSITORIES: biostudies

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