TY - JOUR TT - EVALUATION OF STYRENE INDUCED OXIDATIVE STRESS WITH DYNAMIC DISULFIDE/THIOL HOMEOSTASIS AU - Bal, Ceylan AU - Çetıntepe, Sultan Pınar AU - Gündüzöz, Meşide AU - Erdoğan, Serpil AU - Alışık, Murat AU - Yılmaz, Ömer Hınç AU - Tutkun, Engin AU - Erel, Özcan PY - 2017 DA - February JF - The Turkish Journal Of Occupational / Environmental Medicine and Safety JO - turjoem PB - Engin TUTKUN WT - DergiPark SN - 2149-4711 SP - 40 EP - 40 VL - Volume 2 IS - İssue 1 (1) KW - EVALUATION OF STYRENE INDUCED OXIDATIVE STRESS WITH DYNAMIC DISULFIDE/THIOL HOMEOSTASIS N2 - Styrene is the predominantsolvent used in printer. It is a colorless and volatile aromatic hydrocarbonwith an original smell. Main accused toxic substance for styrene inducedoxidative stress is styrene-7,8-oxide. Phenylglyoxylic acid (PGA) and mandelicacid (MA) are the basic metabolites that are used for sytrene exposurescreening. In this study we aimed to investigate the association betweenstyrene metabolites and dynamic disulfide/thiolhomeostasis in people working in a printing center. 30 non-smoker, inkjet printing workers, included as thestudy subjects. 30 non-smokers with no exposure were recruited as the controlgroup. The study was approved by the local ethic committee. We used Erel and Neşelioğlu’s method for serum disulfide/thiol homeostasismeasurements. PGA, MA, hippuric acid, methyl hippuric acid levels were detected byhigh-performance liquid chromatography usingsame commercial kit. Phenol levels detected with a commercial kit (Eureka, Italy), too Theurinary PGA+MA, hippuric acids and phenol values of worker group weresignificantly higher than the control group (p<0.001, p=0.001 and p=0.001,respectively). There wasn’t any significant difference in terms of methyl hippuric acid between groups (p=0.101). Serumdisulfide levels, disulfide /native thiol ratios anddisulfide/total thiol ratios of exposed group were significantly higher thancontrol group while native thiol/total thiol ratio was significantly lower(p<0.001).With this study we, forthe first time demonstrate that the breakdown of tiol-disulfiide balance inhuman body by styrene exposure. Disulfide/thiol homeostasis measurements can be auseful and reliable marker for oxidative stress caused by styrene exposure. CR - Department of Biochemistry, Yıldırım Beyazıt University, Ankara, Turkey CR - Department of Internal Medicine, Hacettepe University, Ankara, Turkey CR - Department of Family Medicine, Occupational Diseases Hospital, Ankara, Turkey CR - Department of Biochemistry, Atatürk Educational and Research Hospital, Ankara, Turkey CR - Department of Toxicology, Occupational Diseases Hospital, Ankara, Turkey UR - https://dergipark.org.tr/tr/pub/turjoem/issue//303831 L1 - https://dergipark.org.tr/tr/download/article-file/290803 ER -