Guo Yinsheng, Ma Yue, Chen Guoyuan, Cheng Jinquan
Shenzhen Center for Disease Control and Prevention (Dr Cheng), Key Laboratory of Molecular Biology, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong (Drs Guo, Ma), and Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hubei, China (Dr Guo, Dr Ma, Chen).
J Occup Environ Med. 2016 Aug;58(8):e294-300. doi: 10.1097/JOM.0000000000000823.
This study is aimed to analyze the relationship between occupational CS2 exposure and reproductive impairments.
Seventy-six CS2-exposed (9.73 ± 2.76 mg/m(3)) male workers and 94 unexposed workers were selected for study. Worker demographics were assessed with a customized questionnaire. Sexual hormones and sperm-related parameters were measured by biochemical or morphological analysis.
The CS2-exposed workers had significantly higher serum levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and lower levels of testosterone (T). Significant decrements were also identified in sperm viability and motility, chromatin, antioxidant capacity, mitochondrial membrane potential, mitochondrial membrane permeability transition pore (MPTP), and respiratory chain Complexes II and IV.
Our data indicated that occupational CS2 exposure can exert deleterious effects on male sexual hormones and sperm quality, and mitochondrial dysfunction may play a vital role in this process.
