Thiol/disulphide homeostasis in men with heroin addiction
Vahap Ozan Kotan, Fatma Meric Yilmaz, Salim Neselioglu, Ozcan Erel, Ihsan Tuncer Okay, Serkan Kiral, Abdurrahim Bakirhan, Erol Goka
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Article No: 3   Article Type :  Research
Objective: Heroin addicts have increased oxidative stress which can disturb thiol/disulfide (SH/SS) homeostasis, causing disulfide formation. No study has determined the serum thiol amount and blood disulfide amount in heroin addicts. The aim of the study was to investigate dynamic SH/SS homeostasis in heroin addicts.

Methods: Serum SH/SS statuses of 31 heroin addicts and 31 healthy controls were compared to determine the changes in SH/SS homeostasis in heroin addicts. Blood serum native thiol and total thiol (ToSH) levels were measured and the disulfide bond amount was calculated as the half value of the difference between native thiol and ToSH levels. For comparison t-test was used.

Results: SH and ToSH levels were significantly lower (p<0.001 for both) in heroin addicts than in the healthy group whereas disulfide levels were significantly higher (p<0.001). Heroin addicts had significantly higher SS/ToSH and SS/SH ratios and significantly lower SH/ToSH ratios than healthy individuals.

Conclusion: The results showed that SH and ToSH levels were decreased in heroin addicts and SH/SS homeostasis was also disturbed with a shift to the disulfide bond formation side. Results of this study could contribute to the knowledge about pathogenesis of heroin addiction and also to its management. We suggest that replacement of the thiol gap and reduction of excess SS might have positive effects in treatment results.
Keywords : Addiction, disulfide, heroin, oxidative stress, thiol
Dusunen Adam The Journal of Psychiatry and Neurological Sciences 2017;30:95-100
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