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Li Q, Zhang S, Yu M, Wang L, Wang Z, Zhang X, Wang Y, Yuan J. Rotating night shift work and liver enzymes-associated abnormalities among steelworkers: a cross-sectional study from a Chinese cohort. Int Arch Occup Environ Health 2022; 95:1935-1944. [PMID: 35716174 DOI: 10.1007/s00420-022-01894-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/24/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The association between shift schedules and liver enzymes is unclear. This study aims to explore the effect of rotating night shift work on increased liver enzymes. METHODS The in-service workers of Tangsteel Company who participated in occupational health examination in Tangshan in 2017 were selected as the research objects. Multifaceted exposure metrics of night shift work and comprehensive liver enzymes were used to evaluate rotating night shift work and liver enzymes-associated abnormalities, respectively. RESULTS There were positive associations between the odds of all liver enzymes-associated abnormalities and duration of night shifts. Different exposure metrics of night shift work were significantly associated with higher odds of elevated alanine aminotransferase (ALT), elevated gamma-glutamyl transaminase (GGT) and increased liver enzymes. Compared with those who never worked night shift, the groups of current night shift, duration of night shifts ≤ 18 years, duration of night shifts > 18 years, cumulative number of night shifts ≤ 1643 nights, cumulative number of night shifts > 1643 nights and average frequency of night shifts > 7 nights/month had an OR of increased liver enzymes of 1.31 (95% CI 1.08-1.58), 1.28 (95% CI 1.05-1.58), 1.27 (95% CI 1.04-1.55), 1.28 (95% CI 1.04-1.58), 1.27 (95% CI 1.04-1.55), 1.32 (95% CI 1.08-1.60) after adjusting for all confounders, respectively. No significant association was found between rotating night shift work and liver enzymes-associated abnormalities among female steelworkers. CONCLUSIONS Rotating night shift work is associated with elevated ALT, elevated GGT and increased liver enzymes in male steelworkers.
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Affiliation(s)
- Qinglin Li
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Shengkui Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Miao Yu
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Lihua Wang
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Zhende Wang
- Department of Public Health Crisis Management, School of Public Health, Weifang Medical University, Weifang, Shandong, China
| | - Xiaohong Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Yongbin Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Xinxiang Medical University, Xinxiang, Henan, China.
| | - Juxiang Yuan
- Department of Epidemiology and Health Statistics, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China.
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Li Q, Zhang S, Wang H, Xue C, Zhang X, Qin S, Yuan J. Rotating night shift work, sleep duration and elevated gamma-glutamyl transpeptidase among steelworkers: cross-sectional analyses from a Chinese occupational cohort. BMJ Open 2021; 11:e053125. [PMID: 34911716 PMCID: PMC8679064 DOI: 10.1136/bmjopen-2021-053125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES This study aimed to evaluate the separate and combined effects of rotating night shift work and lifestyle factors with elevated gamma-glutamyl transpeptidase (GGT) among steelworkers. DESIGN, SETTING AND PARTICIPANTS This cross-sectional study used the baseline information from a Chinese occupational cohort. The in-service workers of the production department of Tangsteel Company who participated in the occupational health examination in Tangshan from February to June 2017 were selected as the research objects. MAIN OUTCOME MEASURES The separate and combined effects of rotating night shift work and lifestyle factors with elevated GGT among steelworkers. RESULTS The information of 7031 subjects from the production department of Tangsteel Company was analysed. Results showed that the current shift workers and the workers with the duration of night shifts>19 years, the cumulative number of night shifts>1774 nights, the average frequency of night shifts≤7 nights/month and the average frequency of night shifts>7 nights/month had elevated odds of elevated GGT, compared with those who never worked night shifts, and ORs, (95% CIs) were 1.39, (1.10 to 1.75), 1.46, (1.15 to 1.86), 1.46, (1.15 to 1.85), 1.34, (1.04 to 1.73) and 1.37, (1.09 to 1.74) after adjustment for potential confounders. The independent effect of shorter sleep duration (<7 hours/day) on elevated GGT was not statistically significant. Among workers who had shorter sleep duration, the association between rotating night shift work and elevated GGT was statistically significant, but no associations were found among workers with the sleep duration of ≥7 hours/day. In addition, other lifestyle factors affected the association between rotating night shift work and elevated GGT. CONCLUSIONS Rotating night shift work is associated with elevated GGT among steelworkers. In particular, the effect of rotating night shift work on elevated GGT was affected by sleep duration and other lifestyle factors.
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Affiliation(s)
- Qinglin Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Shengkui Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Han Wang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Chao Xue
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Xiaohong Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Sheng Qin
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Juxiang Yuan
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
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Mazidi M, Katsiki N, Mikhailidis DP, Banach M. Ideal cardiovascular health associated with fatty liver: Results from a multi-ethnic survey. Atherosclerosis 2018; 284:129-135. [PMID: 30878840 DOI: 10.1016/j.atherosclerosis.2018.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 10/30/2018] [Accepted: 11/07/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Little is known about the role of liver enzymes as predictors of non-liver-related morbidity and mortality. The ideal cardiovascular health (CVH) score proposed by the American Heart Association (AHA) can be used to predict mortality and morbidity. We investigated the association of the CVH score with liver enzymes and the risk of non-alcoholic fatty liver disease (NAFLD) among US adults. METHODS By using the National Health and Nutrition Examination Survey database (cross-sectional), the CVH score was calculated as meeting ideal levels of the following components: 4 behaviors (smoking, body mass index, physical activity and diet adherence) and 3 factors (total cholesterol, blood pressure and fasting glucose). RESULTS Individuals with a higher CVH score ("better CVH") had a more favorable profile of liver biomarkers. Adjusted (for age, gender, race, poverty to income ratio, education, marital status and alcohol intake) linear regression indicated significant and negative associations between liver biomarkers and CVH score: (β = -0.069, p < 0.001) for alanine aminotransferase, (β = -0.095, p < 0.001), aspartate aminotransferase, (β = -0.067, p < 0.001), alkaline phosphatase and (β = -0.125, p < 0.001) and fatty liver index. In the logistic regression, with the same confounders, individuals with a higher CVH score had 12% less likelihood of NAFLD compared with those with a lower score. Furthermore, each CVH metric separately was inversely linked to the risk of NAFLD. CONCLUSIONS For the first time among US adults, our findings shed light on the role CVH on liver biomarkers.
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Affiliation(s)
- Mohsen Mazidi
- Key State Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang, China; Institute of Genetics and Developmental Biology, International College, University of Chinese Academy of Science (IC-UCAS), Chaoyang, China.
| | - Niki Katsiki
- Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
| | - Dimitri P Mikhailidis
- Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London (UCL), London, UK
| | - Maciej Banach
- Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Poland; Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland; Cardiovascular Research Centre, University of Zielona Gora, Zielona Gora, Poland
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García-Hermoso A, Hackney AC, Ramírez-Vélez R. Ideal cardiovascular health predicts lower risk of abnormal liver enzymes levels in the Chilean National Health Survey (2009-2010). PLoS One 2017; 12:e0185908. [PMID: 29049384 PMCID: PMC5648121 DOI: 10.1371/journal.pone.0185908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 09/21/2017] [Indexed: 12/12/2022] Open
Abstract
High levels of gamma glutamyltransferase (gamma-GT) and alanine aminotransferase (ALT), as well as fatty liver index (FLI) has been associated with higher cardiovascular disease risk factors in adults. The aim of this study was to examine the relationship between gamma-GT, ALT, and fatty liver index FLI levels across a gradient number of ideal cardiovascular health metrics in a representative sample of adults from the Chilean National Health Survey 2009-2010. Data from 1,023 men and 1,449 women (≥ 15 years) from the Chilean Health Survey 2009-2010 were analyzed. Ideal cardiovascular health was defined as meeting ideal levels of the following components: four behaviours (smoking, body mass index, physical activity and diet adherence) and three factors (total cholesterol, blood pressure and fasting glucose). Adults were grouped into three categories according to their number of ideal cardiovascular health metrics: ideal (5-7 metrics), intermediate (3-4 metrics), and poor (0-2 metrics). Blood levels of gamma-GT and ALT were measured and the FLI was calculated. A higher number of ideal cardiovascular health index metric was associated with lower gamma-GT, ALT and FLI (p from trend analysis <0.001). Also, adults meeting at least 3-4 metrics were predicted less likely to have prevalence of abnormal levels of gamma-GT and FLI (p<0.001) compared to adults who met only 0-2 metrics. These findings reinforce the usefulness of the ideal cardiovascular health metrics proposed by the American Heart Association as a tool to identify target subjects and promote cardiovascular health in South-American adults.
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Affiliation(s)
- Antonio García-Hermoso
- Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, USACH, Santiago, Chile
| | - Anthony C. Hackney
- Endocrine Section-Applied Physiology Laboratory, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física «CEMA». Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá D.C, Colombia
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Labayen I, Ruiz JR, Huybrechts I, Ortega FB, Castillo M, Sjöstrom M, González-Gross M, Manios Y, Widhalm K, Kafatos A, Breidenassel C, Rodríguez G, Dallongeville J, Gottrand F, Moreno LA. Ideal cardiovascular health and liver enzyme levels in European adolescents; the HELENA study. J Physiol Biochem 2017; 73:225-234. [PMID: 28063097 DOI: 10.1007/s13105-016-0546-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 12/26/2016] [Indexed: 12/16/2022]
Abstract
There is an increasing interest for the role of liver enzymes as predictors of non-liver-related morbidity and mortality. The American Heart Association (AHA) described the ideal cardiovascular health concept as a score of seven cardiovascular health behaviors and factors that can be used to monitor and predict ideal cardiovascular health over time. This study aimed to examine the association of the ideal cardiovascular health (ICH), as defined by the AHA, with liver enzyme levels in European adolescents. A total of 637 adolescents (54.6% females), aged 14.6 ± 1.2 years from nine European countries participated in this cross-sectional study. Blood levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma-glutamyltransferase were measured and the AST/ALT ratio calculated. Ideal cardiovascular health was defined as meeting ideal levels of the following components: four behaviors (smoking, body mass index, physical activity, and diet) and three factors (total cholesterol, blood pressure, and glucose). A higher number of ideal cardiovascular health behaviors, factors, and ideal cardiovascular health index were associated with lower ALT (P < 0.05, P < 0.001, and P < 0.001, respectively) and gamma-glutamyltransferase (P < 0.001, P < 0.01, and P < 0.001, respectively) levels. Similarly, a higher number of ideal cardiovascular health behaviors (P < 0.01), factors (P < 0.01), and ideal cardiovascular health index (P < 0.001) were associated with a higher aspartate aminotransferase to alanine aminotransferase ratio. These findings reinforce the usefulness of the ICH index as an instrument to identify target individuals and promote cardiovascular health in adolescents, and it also extends these observations to the liver manifestation of the metabolic syndrome.
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Affiliation(s)
- Idoia Labayen
- Department of Nutrition and Food Sciences, University of the Basque Country, UPV/EHU, Vitoria-Gasteiz, Spain.
- Nutrition, Exercise and Health Research Group, Elikadura, Ariketa Fisikoa eta Osasuna, ELIKOS Group, University of the Basque Country, UPV/EHU, Vitoria-Gasteiz, Spain.
| | - Jonatan R Ruiz
- PROmoting FITness and Health Through Physical Activity Research Group (PROFITH), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Inge Huybrechts
- Department of Public Health, Ghent University, Ghent, Belgium
- International Agency for Research on Cancer, Dietary Exposure Assessment Group, Lyon, France
| | - Francisco B Ortega
- PROmoting FITness and Health Through Physical Activity Research Group (PROFITH), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Manuel Castillo
- Departament of Physiology, Medicine School, University of Granada, Granada, Spain
| | - Michael Sjöstrom
- Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Marcela González-Gross
- Faculty of Physical Activity and Sport Sciences (INEF), Universidad Politécnica de Madrid, Madrid, Spain
| | - Yannis Manios
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Kurt Widhalm
- Division of Nutrition and Metabolism, Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | | | | | - Gerardo Rodríguez
- Department of Pediatrics, University of Zaragoza, Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain
| | - Jean Dallongeville
- INSERM, U744, Univ Lille Nord de France, Institut Pasteur de Lille, F-59000, Lille, France
| | - Frédéric Gottrand
- Department of Pediatrics, Jeanne de Flandre Children's University Hospital, Lille, France
| | - Luis A Moreno
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain
- Department of Preventive Medicine, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
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Kokaze A, Yoshida M, Ishikawa M, Matsunaga N, Karita K, Ochiai H, Shirasawa T, Nanri H, Mitsui K, Hoshimo H, Takashima Y. Mitochondrial DNA 5178 C/A polymorphism modulates the effects of coffee consumption on elevated levels of serum liver enzymes in male Japanese health check-up examinees: an exploratory cross-sectional study. J Physiol Anthropol 2016; 35:15. [PMID: 27260124 PMCID: PMC4893217 DOI: 10.1186/s40101-016-0098-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/25/2016] [Indexed: 01/08/2023] Open
Abstract
Background Longevity-associated mitochondrial DNA 5178 cytosine/adenine (Mt5178 C/A) polymorphism modulates the effects of coffee consumption on the risk of hypertension, dyslipidemia, and abnormal glucose tolerance. The objective of this study was to investigate whether Mt5178 C/A polymorphism modifies the effects of coffee consumption on abnormally elevated levels of serum liver enzymes in male Japanese health check-up examinees. Methods A total of 421 male subjects (mean age ± SD, 54.1 ± 7.7 years) were selected from among individuals visiting the hospital for regular medical check-ups. After Mt5178 C/A genotyping, a cross-sectional study assessing the joint effects of Mt5178 C/A polymorphism and coffee consumption on elevated levels of serum aspartate aminotransferase (AST), serum alanine aminotransferase (ALT), and serum gamma-glutamyl transpeptidase (GGT) was then conducted. Results For men with Mt5178C, after adjustment for age, body mass index, alcohol consumption, habitual smoking, green tea consumption, antihypertensive treatment, and antidiabetic treatment, elevated levels of serum AST, as defined as ≥30 U/L; those of serum ALT, as defined as ≥25 U/L; or those of serum GGT, as defined as ≥60 or >51 U/L, may depend on coffee consumption (P for trend = 0.013, P for trend <0.001, P for trend = 0.002, and P for trend <0.001, respectively). On the other hand, no significant joint effects of Mt5178A genotype and coffee consumption on elevated levels of serum liver enzymes were observed. Conclusions The present results suggest that Mt5178 C/A polymorphism modifies the effects of coffee consumption on abnormally elevated levels of serum liver enzymes in male Japanese health check-up examinees.
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Affiliation(s)
- Akatsuki Kokaze
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Masao Yoshida
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo, 181-8611, Japan
| | - Mamoru Ishikawa
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo, 181-8611, Japan.,3Mito Red Cross Hospital, 3-12-48 Sannomaru, Mito-shi, Ibaraki, 310-0011, Japan
| | - Naomi Matsunaga
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo, 181-8611, Japan
| | - Kanae Karita
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo, 181-8611, Japan
| | - Hirotaka Ochiai
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Takako Shirasawa
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Hinako Nanri
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Kiyomi Mitsui
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Hiromi Hoshimo
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Yutaka Takashima
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo, 181-8611, Japan
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Park SG, Lee YJ, Ham JO, Jang EC, Kim SW, Park H. Association between long working hours and serum gamma-glutamyltransferase levels in female workers: data from the fifth Korean National Health and Nutrition Examination Survey (2010-2011). Ann Occup Environ Med 2014; 26:40. [PMID: 25452851 PMCID: PMC4248444 DOI: 10.1186/s40557-014-0040-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 10/14/2014] [Indexed: 11/16/2022] Open
Abstract
Objectives The present study investigated the association between long working hours and serum gamma-glutamyltransferase (GGT) levels, a factor influencing the incidence of cardiovascular disease. Methods Data from the fifth Korean National Health and Nutrition Examination Survey (2010–2011) were used to analyze 1,809 women. Subjects were divided into three groups based on the number of weekly working hours: ≤29, 30–51, and ≥52 hours per week. Complex samples logistic regression was performed after adjusting for general and occupational factors to determine the association between long working hours and high serum GGT levels. Results The prevalence of high serum GGT levels in groups with ≤29, 30–51, and ≥52 working hours per week was 22.0%, 16.9%, and 26.6%, respectively. Even after adjusting for general and occupational factors, those working 30–51 hours per week had the lowest prevalence of high serum GGT levels. Compared to those working 30–51 hours per week, the odds ratios (OR) of having high serum GGT levels in the groups with ≥52 and ≤29 working hours per week were 1.56 (95% confidence interval [CI], 1.10–2.23) and 1.53 (95% CI, 1.05–2.24), respectively. Conclusions Long working hours were significantly associated with high serum GGT levels in Korean women.
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Affiliation(s)
- Seung-Gwon Park
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
| | - Yong-Jin Lee
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
| | - Jung-Oh Ham
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
| | - Eun-Chul Jang
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
| | - Seong-Woo Kim
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
| | - Hyun Park
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do, 330-930 Republic of Korea
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Kokaze A, Yoshida M, Ishikawa M, Matsunaga N, Karita K, Ohtsu T, Ochiai H, Shirasawa T, Nanri H, Baba Y, Hoshino H, Takashima Y. NADH dehydrogenase subunit-2 237 Leu/Met polymorphism modifies effects of cigarette smoking on risk of elevated levels of serum liver enzyme in male Japanese health check-up examinees: a cross-sectional study. Tob Induc Dis 2014; 12:11. [PMID: 25031572 PMCID: PMC4099487 DOI: 10.1186/1617-9625-12-11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/07/2014] [Indexed: 01/28/2023] Open
Abstract
Background NADH dehydrogenase subunit-2 237 leucine/methionine (ND2-237 Leu/Met) polymorphism reportedly influences the effects of cigarette smoking on respiratory function, risk of dyslipidemia, serum non-high-density lipoprotein cholesterol levels, hematological parameters and intraocular pressure. The objective of this study was to investigate whether ND2-237 Leu/Met polymorphism modifies the effects of cigarette smoking on serum liver enzyme levels in male Japanese health check-up examinees. Methods A total of 421 male subjects (mean age ± SD, 54.1 ± 7.7 years) were selected from among individuals visiting the hospital for regular medical check-ups. After ND2-237 Leu/Met genotyping, a cross-sectional study assessing the combined effects of ND2-237 Leu/Met polymorphism and cigarette smoking on serum aspartate aminotransferase levels, serum alanine aminotransferase (ALT) levels and serum gamma-glutamyltransferase (GGT) levels was then conducted. Results No statistically significant differences in serum liver enzyme levels among the three smoking status groups (never- or ex-smokers, 1–20 cigarettes smoked per day and >20 cigarettes smoked per day) by ND2-237 Leu/Met genotype were observed. However, for men with ND2-237Met, cigarette smoking significantly increased the risk of elevated levels of serum ALT (>30 U/L) or serum GGT (≥60 U/L or >51 U/L) (P for trend = 0.031, P for trend = 0.007 and P for trend = 0.004, respectively). After adjustment for age, body mass index, alcohol consumption, coffee consumption, antihypertensive treatment and antidiabetic treatment, a significant association between cigarette smoking and risk of elevated levels of serum ALT (>30 U/L) or serum GGT (≥60 U/L or >51 U/L) was also observed (P for trend = 0.032, P for trend = 0.019 and P for trend = 0.009, respectively). Surprisingly, for men with ND2-237Leu, cigarette smoking significantly decreased the risk of elevated levels of serum ALT (>30 U/L or ≥25 U/L) (P for trend = 0.026 and P for trend = 0.003, respectively). Conclusions Cigarette smoking appears to increase the risk of elevated levels of serum ALT or serum GGT in ND2-237Met genotypic men, but to decrease the risk of elevated levels of serum ALT in ND2-237Leu genotypic men.
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Affiliation(s)
- Akatsuki Kokaze
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Masao Yoshida
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan
| | - Mamoru Ishikawa
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan ; Mito Red Cross Hospital, 3-12-48 Sannomaru, Mito-shi, Ibaraki 310-0011, Japan
| | - Naomi Matsunaga
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan
| | - Kanae Karita
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan
| | - Tadahiro Ohtsu
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Hirotaka Ochiai
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Takako Shirasawa
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Hinako Nanri
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Yuta Baba
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Hiromi Hoshino
- Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Yutaka Takashima
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan
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Noborisaka Y, Ishizaki M, Yamazaki M, Honda R, Yamada Y. Elevated Serum Gamma-Glutamyltransferase (GGT) Activity and the Development of Chronic Kidney Disease (CKD) in Cigarette Smokers. Nephrourol Mon 2013; 5:967-73. [PMID: 24693503 PMCID: PMC3955288 DOI: 10.5812/numonthly.13652] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 07/24/2013] [Accepted: 08/03/2013] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Elevated serum gamma-glutamyltransferase (GGT) is predictive of various cardiovascular (CV) risk factors including chronic kidney disease (CKD). Elevated serum GGT has been recognized in smokers who are likely to develop CKD, but no study has focused on serum GGT and CKD in smokers. OBJECTIVES The aim of this study was to clarify the associations between cigarette consumption, elevation of serum GGT and the development of proteinuria and CKD. PATIENTS AND METHODS A retrospective 6-year observational study was conducted on 2,603 male workers aged between 40 and 64 years. Incidences of proteinuria detected by dipstick and CKD defined by proteinuria and/or reduced estimated glomerular filtration rate (eGFR) measured in health check-ups were determined 6 years later for those who had been free of them at baseline. RESULTS Higher means of serum GGT in smokers than in nonsmokers at baseline, and a higher incidence of elevated serum GGT in smokers than in nonsmokers during the 6-year period were recognized only for alcohol consumers. Incidences of proteinuria and moderate or severe CKD which has a high risk of future renal failure or CV disease were higher in the subjects with greater cigarette consumption or a higher serum GGT level. Multiple logistic regression analyses adjusting for major CV risk factors showed a significant interactive effect between smoking and elevated serum GGT on the development of proteinuria and an additive effect of smoking and serum GGT on the development of high-risk CKD. CONCLUSIONS Elevation of serum GGT in smokers, to a large extent, depends on the associated alcohol consumption. Elevated GGT in smokers plays at least a partial role in the development of CKD, mainly proteinuria, and the underlying mechanisms remain to be elucidated.
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Affiliation(s)
- Yuka Noborisaka
- Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, Ishikawa, Japan
- Corresponding author: Yuka Noborisaka, Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, 1-1 Uchinada, Ishikawa 920-0293 Japan. Tel: +81-762188101, Fax: +81-762869723, E-mail:
| | - Masao Ishizaki
- Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, Ishikawa, Japan
| | - Michiko Yamazaki
- Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, Ishikawa, Japan
| | - Ryumon Honda
- Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, Ishikawa, Japan
| | - Yuichi Yamada
- Department of Social and Environmental Medicine, Kanazawa Medical University School of Medicine, Ishikawa, Japan
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Uetani M, Sakata K, Oishi M, Tanaka K, Nakada S, Nogawa K, Suwazono Y. The influence of being overweight on the relationship between shift work and increased total cholesterol level. Ann Epidemiol 2011; 21:327-35. [PMID: 21458725 DOI: 10.1016/j.annepidem.2011.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Revised: 12/01/2010] [Accepted: 01/07/2011] [Indexed: 11/29/2022]
Abstract
PURPOSE The aim of this study was to clarify the influence of shift work on serum total cholesterol (T-Cho) levels according to body mass index (BMI) at entry in Japanese male workers. METHODS A 14-year prospective cohort study was conducted in day workers (n = 4079) and alternating shift workers (n = 2807) who received annual health check-ups between 1991 and 2005 in a Japanese steel company. The association between job schedule and increases in T-Cho was investigated using multivariate pooled logistic regression analyses with age, BMI, lifestyle (smoking habit, drinking habit, habitual exercise), and the results of blood chemistries (creatinine, glycosylated hemoglobin A1c, aspartic aminotransferase, γ-glutamyl transpeptidase, uric acid) serving as covariates in those who were not overweight (BMI < 25 kg/m(2), n = 5082) and overweight (BMI ≥ 25 kg/m(2), n = 1804) at entry, respectively. The endpoints in the study were either a 20%, 25%, 30%, 35%, 40%, or 45% increase in T-Cho during the period of observation compared to T-Cho at entry. RESULTS In subjects who were not overweight at entry, alternating shift work was associated significantly with five serum T-Cho endpoints (≥20%: odds ratio [OR] = 1.15, 95% confidence interval [CI)] = 1.05, 1.26; ≥25%: OR = 1.17, 95% CI = 1.05, 1.31; ≥35%: OR = 1.24, 95% CI = 1.05, 1.46; ≥40%: OR = 1.30, 95% CI = 1.06, 1.61; ≥45%: OR = 1.31, 95% CI = 1.01, 1.71). However, alternating shift work was not associated with any of the six T-Cho endpoints in subjects who were overweight at entry. CONCLUSIONS In the present study, shift work was shown to be a potential risk factor for increased T-Cho in non-overweight Japanese male workers. However, we did not obtain a consistent association between shift work and an increase in T-Cho levels in overweight subjects. The results suggest that the effect of shift work on lipid regulation may be influenced by BMI.
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Affiliation(s)
- Mirei Uetani
- Department of Occupational and Environmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
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11
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Protective role of coffee in non-alcoholic fatty liver disease (NAFLD). Dig Dis Sci 2010; 55:3200-6. [PMID: 20165979 DOI: 10.1007/s10620-010-1143-3] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2009] [Accepted: 01/26/2010] [Indexed: 12/12/2022]
Abstract
AIM The benefits of coffee on abnormal liver biochemistry, cirrhosis and hepatocellular carcinoma have been reported, but there is a lack of satisfactory explanation. Thus, this study aims to investigate if coffee use has any relationship with bright liver, measured by ultrasound bright liver score (BLS), in patients with non-alcoholic fatty liver disease (NAFLD), and which relationship, if any, is present with BMI and insulin resistance. METHODS This study was performed on 245 patients, 137 with NAFLD and 108 controls. Coffee drinking was defined according to the absolute number of cups of coffee (only espresso coffee), and also graded as 1 (0 cups of coffee/day), 2 (1-2 cups of coffee/day) 3 (≥3 cups of coffee/day). Insulin resistance was assessed by homoeostasis model-insulin resistance index (HOMA). RESULTS Less fatty liver involvement is present in coffee vs. non-coffee drinkers. Odds ratios show that obesity, higher insulin resistance, lower HDL cholesterol, older age and arterial hypertension are associated with a greater risk of more severe BLS; to the contrary, coffee drinking is associated with less severe BLS. In the multiple logistic regression (MLR) model, number of cups of coffee, HOMA and BMI account for 35.8% of the variance to BLS. Coffee use is inversely associated with the degree of bright liver, along with insulin resistance and obesity, which, to the contrary, are directly associated with greater likelihood and severity of bright liver appearance. CONCLUSIONS A possible opposite, if not antagonistic, role of coffee with regard to overweightness and insulin resistance, similar to that reported in hepatocarcinoma and cirrhosis, is envisaged in the natural history of NAFLD.
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Arredondo M, Núñez H, López G, Pizarro F, Ayala M, Araya M. Influence of estrogens on copper indicators: in vivo and in vitro studies. Biol Trace Elem Res 2010; 134:252-64. [PMID: 19685012 DOI: 10.1007/s12011-009-8475-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 07/17/2009] [Indexed: 11/26/2022]
Abstract
Classic copper indicators are not sensitive and specific for detecting excess copper exposure when this is higher than customary but not markedly elevated. Serum copper and ceruloplasmin (Cp) are the most commonly used indicators to assess nutritional status of copper. The objective of this paper was to study the influence of estrogens on these indicators and others used to assess early effects of excess copper exposure in humans and the expression of a set of copper related proteins in a hepatic cellular model. For the studies in humans, 107 healthy participants (18-50 years) were allocated as follows: group 1 (n = 39), women assessed on day 7 of their hormonal cycle; group 2 (n = 34), women assessed on day 21 of their hormonal cycle, and group 3 (n = 34, comparison group), healthy men. Participants received 8 mg Cu/day (as copper sulfate) during 6 months. Serum Cp and Cu, Cu-Zn-superoxide dismutase activity, liver function indicators [aspartate aminotransferase (AST), alanine aminotransferase (ALT), and gamma glutamyltransferase (GGT)], and serum Fe and Zn concentrations were measured monthly. In addition, the influence of estradiol on intracellular total copper content, hctr1, dmt1 and shbg mRNA abundance and hCTR1, and DMT1 expression was measured in HepG2 cells. Serum Cu, Fe, and Zn and liver aminotransferases but not Cu-Zn-superoxide dismutase varied depending on sex. Fe nutrition indicators, GGT, and ALT activities showed significant differences between the hormonal phases. Cellular experiments showed that estradiol increased cellular Cu concentration and hCTR1 and DMT1 mRNA expression and changed these proteins expression patterns. Estradiols significantly influence the responses to copper at the whole body and the cellular levels, suggesting that they help maintaining copper availability for metabolic needs.
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Affiliation(s)
- Miguel Arredondo
- Institute of Nutrition and Food Technology, INTA, University of Chile, Santiago, Chile
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13
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Association of γ-Glutamyltransferase with Cardiovascular Risk: A Prognostic Outlook. Arch Med Res 2009; 40:318-20. [DOI: 10.1016/j.arcmed.2009.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Accepted: 03/30/2009] [Indexed: 12/12/2022]
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Suwazono Y, Kobayashi E, Uetani M, Miura K, Morikawa Y, Ishizaki M, Kido T, Nakagawa H, Nogawa K. G-protein beta3 subunit variant C825T is a risk factor for hypertension in Japanese females--a prospective cohort study over 5 years. Ann Hum Genet 2006; 70:767-77. [PMID: 17044851 DOI: 10.1111/j.1469-1809.2006.00284.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The relationship between the G-protein beta3 subunit variant C825T and risk of hypertension was examined in a prospective cohort study of Japanese workers. This study included observations over a 5-year period from 1997 to 2002 on 878 males and 692 females who were normotensive at entry. Hypertension was defined as systolic blood pressure > or =140 mmHg and/or diastolic blood pressure > or =90 mmHg, or taking antihypertensive medication. Pooled logistic regression analyses were performed using C825T genotype, age, body mass index, lifestyle, and the result of blood chemistries as the covariates. Multivariate pooled logistic regression analysis showed the risk of hypertension was 2.31 times higher in females with the TT genotype than in females with the CC genotype (95% confidence interval: 1.07-4.96), after adjustment for the effects of other potential covariates. In contrast, no significant risk of hypertension was observed with the TT genotype in male subjects. This study indicates that the 825T allele is an independent risk factor for hypertension in Japanese females, and suggests that this polymorphism may be a beneficial prognostic marker for hypertension in the general Japanese female population.
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Affiliation(s)
- Y Suwazono
- Department of Occupational and Environmental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
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Suwazono Y, Sakata K, Okubo Y, Harada H, Oishi M, Kobayashi E, Uetani M, Kido T, Nogawa K. Long-Term Longitudinal Study on the Relationship Between Alternating Shift Work and the Onset of Diabetes Mellitus in Male Japanese Workers. J Occup Environ Med 2006; 48:455-61. [PMID: 16688001 DOI: 10.1097/01.jom.0000214355.69182.fa] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study investigated the effect of alternating shift work (ASW) on the onset of diabetes mellitus in Japanese workers compared with onset in day-shift work (DSW). METHODS A longitudinal study was carried out on a DSW group (n = 3203) and ASW group (n = 2426) of a steel company who received their annual health checkups over a 10-year period between 1991 and 2001. The association between job schedule type and onset of diabetes mellitus (glycated hemoglobin A1c > or =6.0% or medication) was investigated by multivariate pooled logistic regression analyses. RESULTS The odds ratio (95% confidence interval) for the development of diabetes mellitus in the ASW group compared with the DSW group was 1.35 (1.05-1.75). CONCLUSIONS Our study revealed that the ASW is an independent risk factor for the onset of diabetes mellitus.
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Affiliation(s)
- Yasushi Suwazono
- Department of Occupational and Environmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.
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