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Full-Text Articles in Medicine and Health Sciences
Arsenic Exposure And Methylation Efficiency In Relation To Oxidative Stress In Semiconductor Workers, Chih-Hong Pan, Ching-Yu Lin, Ching-Huang Lai, Hueiwang Anna Jeng
Arsenic Exposure And Methylation Efficiency In Relation To Oxidative Stress In Semiconductor Workers, Chih-Hong Pan, Ching-Yu Lin, Ching-Huang Lai, Hueiwang Anna Jeng
Community & Environmental Health Faculty Publications
This study examined associations between oxidative stress and arsenic (As) exposure and methylation efficiency in semiconductor workers. An As-exposed group (n = 427) and a control group (n = 91) were included. The As-exposure group (n = 427) included 149 maintenance staff members and 278 production staff members representing high As exposure and low As exposure, respectively. The control group included 91 administrative staff members with no or minimal As exposure. An occupational exposure assessment was conducted to assess personal As exposure by measuring As concentrations in urine, hair, and fingernails of the subjects. Urinary As(III), As(V), monomethylarsonic (MMA), and …
Sperm Quality And Dna Integrity Of Coke Oven Workers Exposed To Polycyclic Aromatic Hydrocarbons, Hueiwang A. Jeng, Chih Hong Pan, Mu R. Chao, Chien C. Chiu, Guodong Zhou, Chon-Kit Chuo, Wen-Yi Lin
Sperm Quality And Dna Integrity Of Coke Oven Workers Exposed To Polycyclic Aromatic Hydrocarbons, Hueiwang A. Jeng, Chih Hong Pan, Mu R. Chao, Chien C. Chiu, Guodong Zhou, Chon-Kit Chuo, Wen-Yi Lin
Community & Environmental Health Faculty Publications
Objectives: The objective of this study was to assess sperm quality and deoxyribonucleic acid (DNA) integrity of coke oven workers exposed to polycyclic aromatic hydrocarbons (PAHs) as compared to control subjects. Material and Methods: The coke oven workers (N = 52) and administrative staff (N = 35) of a steel plant served as the exposed and control groups, respectively. Exposure to PAHs was assessed by measuring 1-hydroxypyren. Analysis of sperm quality (concentration, motility, vitality, and morphology) was performed simultaneously with sperm DNA integrity analysis, including DNA fragmentation, denaturation, bulky DNA adducts, and 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dGuo). A questionnaire was conducted to collect …
Urinary Dna Lesions As A Biomarker For Assessing Male Reproductive Health, Hueiwang Anna Jeng, Chih-Hung Pan, Chao Mu-Rong
Urinary Dna Lesions As A Biomarker For Assessing Male Reproductive Health, Hueiwang Anna Jeng, Chih-Hung Pan, Chao Mu-Rong
Community & Environmental Health Faculty Publications
The study aimed to examine whether urinary 8-hydroxy-2’-deoxyguanosine (8-OHdG) could serve as a biomarker for assessing sperm DNA integrity. Urine and semen samples were collected from 124 coke-oven workers, who had chronically been exposed to polycyclic aromatic hydrocarbons (PAHs), from a steel plant in Kaohsiung, Taiwan. The coke-oven workers were divided into two subgroups: topside-oven workers and side-oven workers. Sperm DNA integrity was assessed in terms of DNA fragmentation and 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxodGuo). Urine samples were used to detect 1-hydroxypyrene (1-OHP) and urinary 8-OHdG, which served to assess exposure to PAHs and the whole body oxidative stress, respectively. Urinary 1-OHP concentrations …
Are Semen Quality Parameters Sufficient For Biomonitoring Spermatozoa Dna Integrity And Oxidatively Damaged Dna, Hueiwang Anna Jeng, Ruei-Nian Li, Wen-Yi Lin
Are Semen Quality Parameters Sufficient For Biomonitoring Spermatozoa Dna Integrity And Oxidatively Damaged Dna, Hueiwang Anna Jeng, Ruei-Nian Li, Wen-Yi Lin
Community & Environmental Health Faculty Publications
The present study aimed to investigate the relationship between semen quality parameters and DNA integrity, and determine whether semen quality parameters could serve as a reliable biomarker for monitoring sperm DNA damage. Conventional semen parameters from a total of 202 male human subjects were analyzed. DNA fragmentation and 8-oxo-7,8-dihydro-2′- deoxyguanosine (8-oxoGuo) were used to assess sperm DNA integrity. DNA fragmentation was analyzed by the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay and sperm chromatin structure assay (SCSA), while 8-oxodGuo was quantified by the liquid chromatography/tandem mass spectrometry (LC-MS/MS) coupled with an on-line solid phase system. The levels of …
Nucleic Acid Oxidation In Human Health And Disease, Mu-Rong Chao, Pavel Rossner Jr., Siamak Haghdoost, Hueiwang Anna Jeng, Chiung-Wen Hu
Nucleic Acid Oxidation In Human Health And Disease, Mu-Rong Chao, Pavel Rossner Jr., Siamak Haghdoost, Hueiwang Anna Jeng, Chiung-Wen Hu
Community & Environmental Health Faculty Publications
No abstract provided.