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Dalamaga M, Kounatidis D, Tsilingiris D, Vallianou NG, Karampela I, Psallida S, Papavassiliou AG. The Role of Endocrine Disruptors Bisphenols and Phthalates in Obesity: Current Evidence, Perspectives and Controversies. Int J Mol Sci 2024; 25:675. [PMID: 38203845 PMCID: PMC10779569 DOI: 10.3390/ijms25010675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
Excess body weight constitutes one of the major health challenges for societies and healthcare systems worldwide. Besides the type of diet, calorie intake and the lack of physical exercise, recent data have highlighted a possible association between endocrine-disrupting chemicals (EDCs), such as bisphenol A, phthalates and their analogs, and obesity. EDCs represent a heterogeneous group of chemicals that may influence the hormonal regulation of body mass and adipose tissue morphology. Based on the available data from mechanistic, animal and epidemiological studies including meta-analyses, the weight of evidence points towards the contribution of EDCs to the development of obesity, associated disorders and obesity-related adipose tissue dysfunction by (1) impacting adipogenesis; (2) modulating epigenetic pathways during development, enhancing susceptibility to obesity; (3) influencing neuroendocrine signals responsible for appetite and satiety; (4) promoting a proinflammatory milieu in adipose tissue and inducing a state of chronic subclinical inflammation; (5) dysregulating gut microbiome and immune homeostasis; and (6) inducing dysfunction in thermogenic adipose tissue. Critical periods of exposure to obesogenic EDCs are the prenatal, neonatal, pubertal and reproductive periods. Interestingly, EDCs even at low doses may promote epigenetic transgenerational inheritance of adult obesity in subsequent generations. The aim of this review is to summarize the available evidence on the role of obesogenic EDCs, specifically BPA and phthalate plasticizers, in the development of obesity, taking into account in vitro, animal and epidemiologic studies; discuss mechanisms linking EDCs to obesity; analyze the effects of EDCs on obesity in critical chronic periods of exposure; and present interesting perspectives, challenges and preventive measures in this research area.
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Affiliation(s)
- Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Dimitrios Kounatidis
- Department of Internal Medicine, ‘Evangelismos’ General Hospital, 10676 Athens, Greece; (D.K.); (N.G.V.)
| | - Dimitrios Tsilingiris
- First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Natalia G. Vallianou
- Department of Internal Medicine, ‘Evangelismos’ General Hospital, 10676 Athens, Greece; (D.K.); (N.G.V.)
| | - Irene Karampela
- Second Department of Critical Care, ‘Attikon’ General University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Sotiria Psallida
- Department of Microbiology, ‘KAT’ General Hospital of Attica, 14561 Athens, Greece;
| | - Athanasios G. Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Ihenacho U, Guillermo C, Wilkens LR, Franke AA, Tseng C, Li Y, Sangaramoorthy M, Derouen MC, Haiman CA, Stram DO, Le Marchand L, Cheng I, Wu AH. Association of Endocrine Disrupting Chemicals With the Metabolic Syndrome Among Women in the Multiethnic Cohort Study. J Endocr Soc 2023; 7:bvad136. [PMID: 38024651 PMCID: PMC10666661 DOI: 10.1210/jendso/bvad136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Indexed: 12/01/2023] Open
Abstract
Metabolic syndrome (MetS) is associated with a high risk of cardiovascular disease, a leading cause of death among women. MetS is a diagnosis of at least 3 of the following: high blood pressure, high fasting glucose, high triglycerides, high waist circumference, and low high-density lipoprotein cholesterol. Epidemiological studies suggest that endocrine disrupting chemical (EDC) exposure is positively associated with individual components of MetS, but evidence of an association between EDCs and MetS remains inconsistent. In a cross-sectional analysis within the Multiethnic Cohort Study, we evaluated the association between 4 classes of urinary EDCs (bisphenol A [BPA], triclosan, parabens, and phthalates) and MetS among 1728 women. Multivariable logistic regression was used to estimate odds ratios and 95% CI for the association between tertiles of each EDC and MetS adjusting for age, body mass index (BMI), racial and ethnic group, and breast cancer status. Stratified analyses by race and ethnicity and BMI were conducted. MetS was identified in 519 (30.0%) women. We did not detect statistically significant associations of MetS with BPA, triclosan, or phthalate metabolite excretion. MetS was inversely associated with total parabens (Ptrend = .002). Although there were suggestive inverse associations between EDCs and MetS among Latino and African American women, and women with BMI < 30 kg/m2, there was no statistically significant heterogeneity in associations by race and ethnicity or BMI. These findings suggest an inverse association between parabens and MetS in larger multiethnic studies. Prospective analyses to investigate suggested differences in associations by race, ethnicity, and BMI are warranted.
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Affiliation(s)
- Ugonna Ihenacho
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Cherie Guillermo
- Population Sciences in the Pacific Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Lynne R Wilkens
- Population Sciences in the Pacific Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Adrian A Franke
- Cancer Biology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Chiuchen Tseng
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Yuqing Li
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA 94158, USA
| | - Meera Sangaramoorthy
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA 94158, USA
| | - Mindy C Derouen
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA 94158, USA
| | - Christopher A Haiman
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Center for Genetic Epidemiology, University of Southern California, Los Angeles, CA 90089, USA
| | - Daniel O Stram
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Loïc Le Marchand
- Population Sciences in the Pacific Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - Iona Cheng
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA 94158, USA
| | - Anna H Wu
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
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Mérida DM, Moreno-Franco B, Marquès M, León-Latre M, Laclaustra M, Guallar-Castillón P. Phthalate exposure and the metabolic syndrome: A systematic review and meta-analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:121957. [PMID: 37328121 DOI: 10.1016/j.envpol.2023.121957] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/12/2023] [Accepted: 06/01/2023] [Indexed: 06/18/2023]
Abstract
Phthalates are chemicals widely used in plastic-based consumer products, and human exposure is universal. They are classified as endocrine disruptors, and specific phthalate metabolites have been associated with an increased risk of cardiometabolic diseases. The aim of this study was to assess the association between phthalate exposure and the metabolic syndrome in the general population. A comprehensive literature search was performed in four databases (Web of Science, Medline, PubMed, and Scopus). We included all the observational studies that evaluate the association between phthalate metabolites and the metabolic syndrome available until January 31st, 2023. Pooled Odds Ratios (OR) and their 95% confidence intervals were calculated by using the inverse-variance weighted method. Nine cross-sectional studies and 25,365 participants aged from 12 to 80 were included. Comparing extreme categories of phthalate exposure, the pooled ORs for the metabolic syndrome were: 1.08 (95% CI, 1.02-1.16, I2 = 28%) for low molecular weight phthalates, and 1.11 (95% CI, 1.07-1.16, I2 = 7%) for high molecular weight phthalates. For individual phthalate metabolites, the pooled ORs that achieved statistical significance were: 1.13 (95% CI, 1.00-1.27, I2 = 24%) for MiBP; 1.89 (95% CI, 1.17-3.07, I2 = 15%) for MMP in men; 1.12 (95% CI, 1.00-1.25, I2 = 22%) for MCOP; 1.09 (95% CI, 0.99-1.20, I2 = 0%) for MCPP; 1.16 (95% CI, 1.05-1.28, I2 = 6%) for MBzP; and 1.16 (95% CI, 1.09-1.24, I2 = 14%) for DEHP (including ΣDEHP and its metabolites). In conclusion, both low molecular weight and high molecular weight phthalates were associated with an 8 and 11% higher prevalence of the MetS, respectively. The exposure to six specific phthalate metabolites was associated with a higher prevalence of the MetS.
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Affiliation(s)
- Diana María Mérida
- Department of Preventive Medicine and Public Health. School of Medicine, Universidad Autónoma de Madrid and CIBERESP (CIBER of Epidemiology and Public Health), 28029, Madrid, Spain
| | - Belén Moreno-Franco
- Department of Preventive Medicine and Public Health, Universidad de Zaragoza. C/ Domingo Miral S/n, 50009, Zaragoza, Spain; CIBERCV (CIBER of Cardiovascular Diseases) and Instituto de Investigación Sanitaria Aragón, Hospital Universitario Miguel Servet, Av. de Isabel La Católica 3, 50009, Zaragoza, Spain
| | - Montse Marquès
- Laboratory of Toxicology and Environmental Health, School of Medicine, Universitat Rovira I Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut D'Investigació Sanitària Pere Virgili (IISPV), Avda. Josep Laporte, Reus, 243204, Tarragona, Spain
| | - Montserrat León-Latre
- CIBERCV (CIBER of Cardiovascular Diseases) and Instituto de Investigación Sanitaria Aragón, Hospital Universitario Miguel Servet, Av. de Isabel La Católica 3, 50009, Zaragoza, Spain; Centro de Salud "La Jota", Av. de La Jota 42, 50014, Zaragoza, Spain
| | - Martín Laclaustra
- CIBERCV (CIBER of Cardiovascular Diseases) and Instituto de Investigación Sanitaria Aragón, Hospital Universitario Miguel Servet, Av. de Isabel La Católica 3, 50009, Zaragoza, Spain; Department of Medicine, Psychiatry and Dermatology, University of Zaragoza, C/ Domingo Miral S/n, 50009, Zaragoza, Spain
| | - Pilar Guallar-Castillón
- Department of Preventive Medicine and Public Health. School of Medicine, Universidad Autónoma de Madrid and CIBERESP (CIBER of Epidemiology and Public Health), 28029, Madrid, Spain; IMDEA-Food Institute. CEI UAM+CSIC, Carretera de Cantoblanco 8, 28049, Madrid, Spain.
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4
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Wu Q, Li G, Zhao CY, Na XL, Zhang YB. Association between phthalate exposure and obesity risk: A meta-analysis of observational studies. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 102:104240. [PMID: 37549759 DOI: 10.1016/j.etap.2023.104240] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/09/2023]
Abstract
According to epidemiological studies, phthalate exposure is associated with an increased risk of obesity in children and adults; however, these observations remain debatable. Therefore, we performed a systematic review and meta-analysis of the current literature to explore the effects of phthalate exposure on obesity. A systematic search was performed from inception to July 2022 in PubMed, EMBASE, Scopus, and Web of Science. Quality assessment was completed using criteria modified from Newcastle-Ottawa Scale (NOS) for the included studies. Meta-analysis showed that childhood exposure to MnBP, MBP, MEP, MiBP, and MECPP was positively correlated with obesity. In adults, MMP, MEP, and MiBP were positively correlated with adult abdominal obesity, while MEHHP, MECPP, and MCOP were positively correlated with adult general obesity. Subgroup analysis revealed that the positive correlation was particularly significant in women, as well as in Europe and the United States. Overall, a substantial association exists between phthalate exposure and obesity in children and adults. Sex and study site may provide limited sources of heterogeneity.
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Affiliation(s)
- Qian Wu
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang Province 150086, China; Yichang Center for Disease Control and Prevention, Yichang, Hubei Province 443000, China
| | - Gang Li
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang Province 150086, China; Department of Preventive Medicine, Public Health College, Qiqihar Medical University, Qiqihar, Heilongjiang Province 161006, China
| | - Chen-Yang Zhao
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Xiao-Lin Na
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang Province 150086, China.
| | - Yun-Bo Zhang
- Department of Environmental Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang Province 150086, China.
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Hua L, Guo S, Xu J, Yang X, Zhu H, Yao Y, Zhu L, Li Y, Zhang J, Sun H, Zhao H. Phthalates in dormitory dust and human urine: A study of exposure characteristics and risk assessments of university students. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 845:157251. [PMID: 35817099 DOI: 10.1016/j.scitotenv.2022.157251] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/26/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Phthalate diesters (PAEs) are prevalent and potentially toxic to human health. The university dormitory represents a typical and relatively uniform indoor environment. This study evaluated the concentrations of phthalate monoesters (mPAEs) in urine samples from 101 residents of university status, and the concentrations of PAEs in dust collected from 36 corresponding dormitories. Di-(2-ethylhexyl) phthalate (DEHP, median: 68.0 μg/g) was the major PAE in dust, and mono-ethyl phthalate (47.9 %) was the most abundant mPAE in urine. The levels of both PAEs in dormitory dust and mPAEs in urine were higher in females than in males, indicating higher PAE exposure in females. Differences in lifestyles (dormitory time and plastic product use frequency) may also affect human exposure to PAEs. Moreover, there were significant positive correlations between the estimated daily intakes of PAEs calculated by using concentrations of PAEs in dust (EDID) and mPAEs in urine (EDIU), suggesting that PAEs in dust could be a significant source of human exposure to PAEs. The value of EDID/EDIU for low molecular weight PAEs (3-6 carbon atoms in their backbone) was lower than that of high molecular weight PAEs. The contribution rate of various pathways to PAE exposure illustrated that non-dietary ingestion (87.8 %) was the major pathway of human exposure to PAEs in dust. Approximately 4.95 % of university students' hazard quotients of DEHP were >1, indicating that there may be some health risks associated with DEHP exposure among PAEs. Furthermore, it is recommended that some measures be taken to reduce the production and application of DEHP.
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Affiliation(s)
- Liting Hua
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Sai Guo
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jiaping Xu
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xiaomeng Yang
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hongkai Zhu
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yiming Yao
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lin Zhu
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Yongcheng Li
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jingran Zhang
- SCIEX, Analytical Instrument Trading Co., Ltd, Beijing 100015, China
| | - Hongwen Sun
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hongzhi Zhao
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Lai CC, Liu FL, Tsai CY, Wang SL, Chang DM. Di-(2-ethylhexyl) phthalate exposure links to inflammation and low bone mass in premenopausal and postmenopausal females: Evidence from ovariectomized mice and humans. Int J Rheum Dis 2022; 25:926-936. [PMID: 35855679 DOI: 10.1111/1756-185x.14386] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/13/2022] [Accepted: 06/28/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Phthalates induce inflammation and are ubiquitously used in daily life. We aim to study the impact of di-(2-ethylhexyl) phthalate (DEHP) exposure on inflammation and osteoporosis in premenopausal and postmenopausal females. METHODS Female 8-week-old C57BL/6JNarl mice received an ovariectomy (OVX) or a sham operation and were fed with DEHP or vehicle by oral gavage for 4 or 8 weeks. Their femurs were isolated for micro-computed tomography, and their serum was collected for inflammatory cytokine assays. Correlations between urinary phthalate metabolites and the lumbar spine bone mineral density (BMD) in premenopausal and postmenopausal volunteers were performed. RESULTS Among the OVX mice treated for 4 weeks, significant lower bone volume, bone volume/tissue volume, and trabecular number but significant higher trabecular bone pattern factor and structure model index were identified in the mice treated with DEHP than with vehicle. The OVX mice treated with DEHP for 4 weeks had significantly higher serum interleukin (IL)-1β, IL-10, IL-17A, interferon (IFN)-γ, tumor necrosis factor (TNF)-α, and Dickkopf-1 levels than those treated with vehicle. The sham mice treated with DEHP for 8 weeks showed an impaired femur trabecular microstructure and had significantly higher serum IL-1β, IL-6, IL-10, IL-17A, IFN-γ, and TNF-α than those treated with vehicle. DEHP metabolites were inversely correlated with the BMD of premenopausal women and the T-score of postmenopausal women. CONCLUSION DEHP treatment in OVX and sham mice results in osteoporosis and impairs the microstructure of the femur trabecula through inflammation. Phthalate exposure negatively affects the bone mass in both premenopausal and postmenopausal women. Thus, long-term avoidance is suggested.
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Affiliation(s)
- Chien-Chih Lai
- Division of Allergy, Immunology, and Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fei-Lan Liu
- Biobank Management Center of the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Chang-Youh Tsai
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Immunology and Rheumatology, Fu Jen Catholic University Hospital, New Taipei, Taiwan
| | - Shu-Li Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Deh-Ming Chang
- Division of Allergy, Immunology, and Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.,Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
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Hsia TI, Huang PC, Chen HC, Lo YTC, Chang WT, Jou YY, Huang HB. Relationships among phthalate exposure, oxidative stress, and insulin resistance in young military soldiers: A cumulative risk assessment and mediation approach. ENVIRONMENT INTERNATIONAL 2022; 165:107316. [PMID: 35635958 DOI: 10.1016/j.envint.2022.107316] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/26/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Epidemiological studies concerning whether oxidative stress mediates phthalate exposure-insulin resistance (IR) associations in young adults are limited. Therefore, we investigated this potential mediation by using a cumulative risk approach involving daily intake (DI) and a hazard index (HIRfD). METHODS The participants were 391 Taiwanese military personnel. This study measured their IR (as homeostatic model assessment of estimated IR [HOMA-IR]), levels of oxidative stress biomarkers (8-hydroxy-2-deoxyguanosine, 8-nitroguanine, 8-iso-prostaglandin F2α, and N-acetyl-S-[tetrahydro-5-hydroxy-2-pentyl-3-furanyl]-L-cysteine [HNE-MA]), the sum of these four biomarkers (ΣOS), and urinary phthalate metabolite concentrations. The HIRfD was estimated on the basis of urinary levels of phthalate metabolite, and the DI of five phthalates was determined: dimethyl phthalate, benzyl butyl phthalate (BBzP), diethyl phthalate, dibutyl phthalate (DBP), and di (2-ethylhexyl) phthalate (DEHP). Logistic regression models were employed to explore associations among DI, HIRfD, oxidative stress biomarkers, and HOMA-IR values. The role played by oxidative stress in the phthalate exposure-HOMA-IR association was determined using mediation analysis. RESULTS We discovered positive associations between high DI of DBP, BBzP, and DEHP; high HIRfD; and high ΣOS. High ΣOS and HNE-MA were associated with a higher likelihood of a high HOMA-IR value. Mediation analysis indicated that high ΣOS and HNE-MA were significant mediators of the associations between phthalates and IR. CONCLUSION Oxidative stress may partially mediate the phthalate-IR relationship in young adults.
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Affiliation(s)
- Tsu-I Hsia
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan ROC
| | - Po-Chin Huang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan ROC; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan ROC; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan ROC
| | - Hsin-Chang Chen
- Department of Chemistry, Tunghai University, Taichung City, Taiwan ROC
| | - Yuan-Ting C Lo
- School of Public Health, National Defense Medical Center, Taipei, Taiwan ROC
| | - Wan-Ting Chang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan ROC
| | - Yann-Yuh Jou
- Health Promotion Administration, Ministry of Health and Welfare, Taipei, Taiwan ROC
| | - Han-Bin Huang
- School of Public Health, National Defense Medical Center, Taipei, Taiwan ROC.
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Wan X, Jia W, Zhuang P, Wu F, Zhang Y, Shen X, Liu X, Zheng W, Jiao J, Zhang Y. Associations of 3-monochloropropane-1,2-diol and glycidol with prevalence of metabolic syndrome: Findings from Lanxi Nutrition and Safety Study. ENVIRONMENTAL RESEARCH 2022; 209:112746. [PMID: 35063427 DOI: 10.1016/j.envres.2022.112746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
In this study, we investigated the association of 2,3-dihydroxypropyl mercapturic acid (DHPMA), a urinary biomarker of environmental and dietary exposure to 3-monochloropropane-1,2-diol and glycidol, with prevalent MetS in a Chinese middle-aged and elderly population. The urinary DHPMA concentrations were determined by ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) analysis and further calibrated by the urinary creatinine content. MetS cases were defined by the Adult Treatment Panel III criteria for Asian-Americans of National Cholesterol Education Program (NCEP/ATPIII). Multivariate-adjusted modified Poisson regression models were used to analyze the associations between the urinary DHPMA concentrations and MetS prevalence. Of the 1613 participants aged 45-75 years, we documented 552 (34.2%) MetS cases. After adjustment for potential risk factors, the relative risks (95% confidence intervals) of MetS prevalence across the increasing quartiles of DHPMA concentrations were 1.14 (0.93-1.39), 1.29 (1.06-1.56), and 1.50 (1.25-1.80), respectively, compared with the lowest quartile. We also observed strong positive association between urinary DHPMA concentrations and hypertriglyceridemia prevalence (P < 0.001 for trend). These positive associations remained unchanged in the subgroups stratified by general demographic, dietary and behavioral risk factors. These results suggested that urinary DHPMA was associated with higher prevalence of MetS among Chinese elderly people.
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Affiliation(s)
- Xuzhi Wan
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Wei Jia
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Pan Zhuang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Fei Wu
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Yiju Zhang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xinyi Shen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xiaohui Liu
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Weifang Zheng
- Lanxi Red Cross Hospital, Jinhua, 321000, Zhejiang, China
| | - Jingjing Jiao
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Yu Zhang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Integrated Research Base of Southern Fruit and Vegetable Preservation Technology, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou, 310058, Zhejiang, China; Ningbo Research Institute, Zhejiang University, Ningbo, 315100, Zhejiang, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
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Jiang M, Li X, Wu H, Su F, Cao L, Ren X, Hu J, Tatenda G, Cheng M, Wen Y. Triglyceride-Glucose Index for the Diagnosis of Metabolic Syndrome: A Cross-Sectional Study of 298,652 Individuals Receiving a Health Check-Up in China. Int J Endocrinol 2022; 2022:3583603. [PMID: 35814916 PMCID: PMC9259285 DOI: 10.1155/2022/3583603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/13/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE We herein aim to explore the relationship between the triglyceride-glucose (TyG) index and metabolic syndrome (MS). METHODS We enrolled 298,652 individuals with an average age of 47.08 ± 12.94 years and who underwent health check-ups at the First Affiliated Hospital of Wuhu Wannan Medical College in this cross-sectional study from 2014 to 2016. We enlisted 125,025 women (41.86%) and 173,627 men (58.14%). The survey information included a questionnaire survey, a physical examination, and a laboratory examination. RESULTS The prevalence of MS increased gradually in the TyG-index subgroups (Q1, TyG <8.30; Q2, 8.30≤ TyG <8.83; and Q3, TyG ≥8.83). We noted significant differences in hypertension, hyperlipidemia, hyperglycemia, sex, age, body mass index (BMI), smoking and drinking habits, and estimated glomerular filtration rate between the TyG-index subgroups. Multiclass logistic regression analysis showed that the group with TyG <8.30 was the reference group, and the 8.30≤ TyG <8.83 and the TyG ≥8.83 groups exhibited a higher TyG index with MS, and a lower TyG index without MS disease. In the linear curve analysis of the TyG index and MS components, BMI, systolic blood pressure, and diastolic blood pressure showed upward trends, while high-density lipoprotein cholesterol showed no obvious trend in the TyG index at a range of 7.8-11.0. Receiver operating characteristic analysis was used to evaluate the predictive value of the TyG index, triglycerides, and fasting blood glucose for MS, and we found that the area under the TyG index curve was the largest (AUC = 0.89). CONCLUSION There were associations between the TyG index and MS and its components, and the TyG index is therefore of great value in the early diagnosis of MS.
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Affiliation(s)
- Mingfei Jiang
- Department of Diagnostics, School of Clinical Medicine, Wannan Medical College, Wuhu 214002, Anhui, China
| | - Xiaoran Li
- Department of Radiology, Nanjing Gaochun People's Hospital, Nanjing 211300, Jiangsu, China
| | - Huan Wu
- Department of Health and Quarantine, School of Laboratory Medicine, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Fan Su
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Lei Cao
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Xia Ren
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Jian Hu
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Grace Tatenda
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
| | - Mingjia Cheng
- Department of Diagnostics, School of Clinical Medicine, Wannan Medical College, Wuhu 214002, Anhui, China
| | - Yufeng Wen
- Department of Prevention Medical, School of Public Health, Wannan Medical College, Wuhu 214002, AnHui, China
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Huang YC, Huang PR, Lo YTC, Sun CW, Pan WH, Wang SL, Huang HB. Food Processing and Phthalate Exposure: The Nutrition and Health Survey in Taiwan (1993-1996 and 2005-2008). Front Nutr 2021; 8:766992. [PMID: 34869535 PMCID: PMC8635797 DOI: 10.3389/fnut.2021.766992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/22/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Phthalates esters are widely used commercially and can leach from a food container or food packaging. Few studies have been conducted in Asia regarding food processed to varying levels and human phthalate exposure. This study aimed to evaluate the association between unprocessed and ultra-processed food intake and urinary phthalate metabolite levels in the Taiwanese adult population. Methods: A total of 516 participant data were extracted from the cross-sectional 1993–1996 and 2005–2008 Nutrition and Health Survey in Taiwan of those aged over 18 years, where urinary measures and one 24-h dietary recall were collected. Urinary concentrations of dimethyl phthalate, diethyl phthalate, dibutyl phthalate, butyl benzyl phthalate, and di-(2-ethylhexyl) phthalate metabolites including monomethyl phthalate, monoethyl phthalate (MEP), monobutyl phthalate (MBP), monobenzyl phthalate, mono-(2-ethylhexyl) phthalate, mono-(2-ethyl-5-hydroxyhexyl) phthalate, and mono-(2-ethyl-5-oxohexyl) phthalate were measured in spot urine samples. The NOVA food processing classification system was applied to divide all consumed foods into four mutually exclusive groups including unprocessed or minimally processed, processed culinary ingredients, processed and ultra-processed food. Generalized linear models were employed to examine the associations between the percentage quartiles (Qs) of unprocessed and ultra-processed foods in the total weight of food and the urinary phthalate metabolites. Results: Compared with participants in the lowest quartiles (Q1) of ultra-processed food intake, highest ultra-processed food intake (Q4) had 65.7% (95% confidence interval [CI]: 4.83, 162) higher urinary concentrations of MEP after adjusted for covariates. In contrast, the higher unprocessed food consumption was inversely associated with urinary concentrations of MEP and MBP (P for trend = 0.03). When compared to the lowest unprocessed food consumers (Q1), higher consumers (Q4) presented 38.6% (95% CI: −61.3, −2.59) lower MEP concentrations and 23.1% (95% CI: −38.5, −3.71) lower MBP concentrations. Conclusion: Ultra-processed food consumption was associated with increased concentrations of urinary MEP. Conversely, consuming unprocessed food was associated with lower concentrations of MEP and MBP in the Asian Taiwanese adult population.
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Affiliation(s)
- Yi-Chen Huang
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Pei-Ru Huang
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Yuan-Ting C Lo
- National Defense Medical Center, School of Public Health, Taipei, Taiwan
| | - Chien-Wen Sun
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Wen-Harn Pan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Shu-Li Wang
- National Defense Medical Center, School of Public Health, Taipei, Taiwan.,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Han-Bin Huang
- National Defense Medical Center, School of Public Health, Taipei, Taiwan
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11
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't Mannetje A, Coakley J, Douwes J. Levels and determinants of urinary phthalate metabolites in New Zealand children and adults. Int J Hyg Environ Health 2021; 238:113853. [PMID: 34634755 DOI: 10.1016/j.ijheh.2021.113853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 09/23/2021] [Accepted: 09/29/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND This first national biomonitoring survey of urinary phthalate metabolites in the New Zealand population aimed to provide baseline data, identify exposure determinants, and make comparisons with health-based exposure guidance values. METHODS The survey conducted in 2014-2016 involved the collection of morning-void urine from 298 children (5-18 years) and 302 adults (20-65 years), 33% of Māori ethnicity. A questionnaire collected information on demographic factors and diet. Urine was analysed for creatinine, specific gravity, and 10 phthalate metabolites through liquid chromatography tandem-mass spectrometry (MMP; MEP; MBP iso+n; MBzP; MCHP; MEHP; MEOHP; MEHHP; MCPP; and MiNP). Determinants of exposure were assessed using multivariable linear regression. RESULTS Detection frequencies exceeded 95% for metabolites of DEP, DEHP and DBP. The highest GM was observed for the DBP metabolite MBP iso+n (36.1 μg/L adults; 60.5 μg/L children), followed by the sum of three DEHP metabolites (MEHP+MEOHP+MEHHP: 19.0 μg/L adults; 37.0 μg/L children), and the DEP metabolite MEP (19.1 μg/L adults; 12.0 μg/L children). For most phthalate metabolites New Zealand levels were in the mid-range of internationally reported levels, while for DEP they were in the low range. Māori and non-Māori had similar levels. Children had higher GMs than adults for most metabolites, except for MEP. A proportion of children and adults exceeded the biomonitoring equivalents of health-based guidance values for DBP (0-16% and 0-3% respectively), and DEHP (0-0.7% and 0-0.3% respectively). Eating warm meals from plastic containers ≥2 times/week was associated with higher levels of DEHP metabolites, MBP iso+n, and MBzP. CONCLUSION Phthalate exposure is omnipresent in both children and adults in New Zealand. Exceedances of the biomonitoring equivalents for DBP and DEHP indicate that potential health effects from exposure to these phthalates cannot be excluded with sufficient certainty.
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Affiliation(s)
- Andrea 't Mannetje
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand.
| | - Jonathan Coakley
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand
| | - Jeroen Douwes
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand
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Gao H, Chen D, Zang M. Association between phthalate exposure and insulin resistance: a systematic review and meta-analysis update. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:55967-55980. [PMID: 34498187 DOI: 10.1007/s11356-021-16252-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 08/26/2021] [Indexed: 05/28/2023]
Abstract
An update on systematic review and meta-analysis was performed to explore effects of phthalate exposure on insulin resistance. A systematic literature search was performed in MEDLINE, Web of Science, and CNKI until March 2021. A conceptual framework was constructed to guide the organization and presentation of results. Besides, beta coefficients with corresponding confidence intervals were extracted from the most adjusted models. Extracted beta coefficients were transformed into correlation, and z Fisher transformation of correlation with the corresponding standard error was included in meta-analysis. Subgroup analyses were performed by age (adult vs. adolescent) and sex (female vs. male) of participants and site of study (America and Europe vs. Asia) to explore potential sources of heterogeneity. Nineteen literatures with 12,533 participants reporting on the association of exposure to specific phthalates and insulin resistance were selected. The majority of included studies revealed positive relationships of insulin resistance with different phthalate metabolites exposure. Meta-analyses were performed on 16 studies. Exposure to MnBP, MBzP, MCPP, MEHP, MEOHP, MEHHP, ∑DEHP, and high-molecular weight phthalate (∑HMWP) was associated with the increase of the homeostasis model assessment of insulin resistance (HOMA-IR) index. The results of sensitivity analyses stratified by age, sex, and site of study remained stable, suggesting the robustness of these meta-analyses. Most of heterogeneity in sensitivity analyses decreased to moderate or low degree. Exposure to MnBP, MBzP, MCPP, MEHP, MEOHP, MEHHP, ∑DEHP, and ∑HMWP was associated with the increased risk of HOMA-IR. Age, sex, and site of study might provide limited source of heterogeneity.
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Affiliation(s)
- Hui Gao
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, 230022, Anhui, China.
- MOE Key Laboratory of Population Health Across Cycle, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China.
| | - Dan Chen
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Miao Zang
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
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Gao H, Zhu BB, Huang K, Zhu YD, Yan SQ, Wu XY, Han Y, Sheng J, Cao H, Zhu P, Tao FB. Effects of single and combined gestational phthalate exposure on blood pressure, blood glucose and gestational weight gain: A longitudinal analysis. ENVIRONMENT INTERNATIONAL 2021; 155:106677. [PMID: 34126297 DOI: 10.1016/j.envint.2021.106677] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 05/12/2023]
Abstract
Few studies have investigated the association of gestational exposure to phthalate with metabolic risk and have reached inconsistent conclusions. Based on the Ma'anshan Birth Cohort, 3273 women were included in the present study. All participants provided up to three urine samples for 7 phthalate metabolite measurements. The hazard index (HI) was used to evaluate the cumulative risk of multiple phthalate coexposures. The outcomes of interest included hypertensive disorders of pregnancy (HDOP), gestational diabetes mellitus (GDM), and gestational weight gain (GWG). The incidences of HDOP, GDM, and excessive GWG were 5.93%, 13.09%, and 28.95%, respectively. Exposure to a single phthalate metabolite or a specific diester during the first trimester of pregnancy elevated blood pressure (BP) and fasting plasma glucose (FPG) in the third trimester and body weight gain throughout pregnancy. However, inverse relationships were revealed for some phthalate metabolites, which were inconsistent with the results of their diesters. The HI value during the first trimester was positively associated with subsequent BP, FPG, and GWG. In addition, HI during the first trimester increased the risks of GDM [odds ratio (OR) = 1.34, 95% confidence intervals (CIs) = 1.02-1.75)] and excessive GWG (OR = 1.76, 95% CIs = 1.41-2.19) in a linear manner thereafter. Notably, phthalates might directly increase maternal blood glucose and pressure, and these changes were secondary effects of the obesiogenic effects of certain phthalates. In conclusion, exposure to single and multiple phthalates during the first trimester of pregnancy increased the risks of maternal metabolic syndrome components. However, the conflicting findings between phthalates and their metabolites need to be interpreted carefully.
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Affiliation(s)
- Hui Gao
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Bei-Bei Zhu
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Kun Huang
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Yuan-Duo Zhu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Shuang-Qin Yan
- Ma'anshan Maternal and Child Healthcare (MCH) Center, Ma'anshan 243011, China
| | - Xiao-Yan Wu
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Yan Han
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Jie Sheng
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Hui Cao
- Ma'anshan Maternal and Child Healthcare (MCH) Center, Ma'anshan 243011, China
| | - Peng Zhu
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China
| | - Fang-Biao Tao
- MOE Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), No. 81 Meishan Road, Hefei 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No. 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei 230032, Anhui, China.
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Huang HB, Siao CY, Lo YTC, Shih SF, Lu CH, Huang PC. Mediation effects of thyroid function in the associations between phthalate exposure and glucose metabolism in adults. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 278:116799. [PMID: 33743268 DOI: 10.1016/j.envpol.2021.116799] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/04/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
The mediating influence of thyroid function on the association of phthalate exposure with glucose metabolism, including insulin resistance, remains unclear. We explored the mediating influence of thyroid hormone levels on the phthalate exposure-insulin resistance association. This cross-sectional study of 217 Taiwanese adults assessed insulin resistance (Homeostatic Model Assessment for Insulin Resistance, HOMA-IR scores) and the levels of 11 urinary phthalate metabolites and 5 thyroid hormones. Multiple regression models were used to analyze the associations among serum thyroid hormone levels, urinary phthalate metabolite levels, and HOMA-IR scores. The mediation analysis assessed the influence of thyroid function on the phthalate exposure-HOMA-IR association. Our data indicated urinary mono-ethylhexyl phthalate (MEHP) levels was negatively associated with free thyroxine (T4) (β = -0.018; 95% confidence interval [CI]: -0.031, -0.005) and positively associated with HOMA-IR scores (β = 0.051, 95% CI: 0.012, 0.090). The study also revealed urinary mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) levels was negatively associated with free T4 (β = -0.036, 95% CI: -0.056, -0.017) and HOMA-IR (β = 0.070, 95% CI: 0.013, 0.126). Free T4 and HOMA-IR had a negative association (β = -0.757, 95% CI: -1.122, -0.392). In the mediation analysis, free T4 mediated 24% and 35% of the associations of urinary MEHP and MEOHP with HOMA-IR, respectively. Our findings revealed the mediating role of thyroid function in the phthalate exposure-glucose metabolism association in adults.
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Affiliation(s)
- Han-Bin Huang
- School of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Chi-Ying Siao
- School of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Yuan-Ting C Lo
- School of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Fang Shih
- Department of Health Administration, College of Health Professions, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Chieh-Hua Lu
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Po-Chin Huang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Safety, Health and Environmental Engineering, National United University, Miaoli, Taiwan; National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan.
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15
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ANGPTL8 enhances insulin sensitivity by directly activating insulin-mediated AKT phosphorylation. Gene 2020; 749:144707. [PMID: 32344005 DOI: 10.1016/j.gene.2020.144707] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022]
Abstract
ANGPTL8 is a 22-KDa protein in the angiopoietin-like family. It is a liver-derived hormone that dynamically regulates glucose metabolism after refeeding. The mechanism of its regulation of glucose metabolism is unclear. We analyzed the effect of ANGPTL8 overexpression on glucose tolerance in the mouse liver by tail vein hydrodynamic transfection. The mechanism of ANGPTL8 improving insulin sensitivity was analyzed by the overexpression or knockdown of ANGPTL8 in mouse primary hepatocytes through in vitro synthetic mRNA and siRNA technology. The key site of ANGPTL8 protein regulating this signal pathway was screened by DNA point mutation and fragment truncation. The results showed that ANGPTL8 may directly regulate AKT protein phosphorylation in the insulin-mediated PI3K/AKT signaling pathway to improve insulin sensitivity. Ser94 and Thr98 are the key sites of ANGPTL8 protein in activating AKT protein phosphorylation. Present results indicate that ANGPTL8 may be a potential new agent to reduce postprandial blood glucose.
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