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Vo HVT, Nguyen YT, Kim N, Lee HJ. Vitamin A, D, E, and K as Matrix Metalloproteinase-2/9 Regulators That Affect Expression and Enzymatic Activity. Int J Mol Sci 2023; 24:17038. [PMID: 38069361 PMCID: PMC10707015 DOI: 10.3390/ijms242317038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Fat-soluble vitamins (vitamin A, D, E, and K) assume a pivotal role in maintaining human homeostasis by virtue of their enzymatic functions. The daily inclusion of these vitamins is imperative to the upkeep of various physiological processes including vision, bone health, immunity, and protection against oxidative stress. Current research highlights fat-soluble vitamins as potential therapeutics for human diseases, especially cancer. Fat-soluble vitamins exert their therapeutic effects through multiple pathways, including regulation of matrix metalloproteinases' (MMPs) expression and enzymatic activity. As MMPs have been reported to be involved in the pathology of various diseases, such as cancers, cardiovascular diseases, and neurological disorders, regulating the expression and/or activity of MMPs could be considered as a potent therapeutic strategy. Here, we summarize the properties of fat-soluble vitamins and their potential as promising candidates capable of effectively modulating MMPs through multiple pathways to treat human diseases.
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Affiliation(s)
- Ha Vy Thi Vo
- Department of Chemistry Education, Kongju National University, Gongju 32588, Republic of Korea;
| | - Yen Thi Nguyen
- Department of Chemistry, Kongju National University, Gongju 32588, Republic of Korea;
| | - Namdoo Kim
- Department of Chemistry, Kongju National University, Gongju 32588, Republic of Korea;
| | - Hyuck Jin Lee
- Department of Chemistry Education, Kongju National University, Gongju 32588, Republic of Korea;
- Kongju National University Institute of Science Education, Kongju National University, Gongju 32588, Republic of Korea
- Kongju National University’s Physical Fitness for Health Research Lab (KNUPFHR), Kongju National University, Gongju 32588, Republic of Korea
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Dietary vitamin A intake and its major food sources among rural pregnant women of South-West Bangladesh. Heliyon 2023; 9:e12863. [PMID: 36685423 PMCID: PMC9852929 DOI: 10.1016/j.heliyon.2023.e12863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/09/2023] Open
Abstract
The study aimed to estimate the dietary intake of vitamin A and its major food sources among rural pregnant women from the southwest region of Bangladesh. A multi-stage random cluster sampling method was used to select the respondents (N = 1012). A semi-structured questionnaire was used to collect the data, and statistical analysis was conducted using IBM SPSS 20.0. The mean age of the respondents was 23.27 ± 5.23 years, and the majority were in their second (48%) and third trimester (49%). The mean dietary intake of vitamin A was 392 ± 566 μg Retinol Activity Equivalent (RAE)/day (51% of Recommended Dietary Allowance). The contribution of β-carotene (plant source) and retinol (animal source) in vitamin A intake was about 60% and 40%, respectively. The major β-carotene contributing food groups were vegetables (dark and light) and tubers, and food items were colocasia, potato, beans, brinjal, and ripe tomatoes. On the other hand, the major retinol-contributing food groups were fish, eggs, and milk, and food items were small fish, Rui (carp) fish, and cow's milk. It was also observed that the consumption of food items from β-carotene and retinol-contributing food groups did not differ significantly among the three groups of respondents, but the variations in the amount of the different food items consumed were significant. Dietary vitamin A intake is low among pregnant women in the South-West region of Bangladesh. Hence, they are at a greater risk of adverse materno-fetal health outcomes associated with vitamin A deficiency.
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Immune Impairment Associated with Vitamin A Deficiency: Insights from Clinical Studies and Animal Model Research. Nutrients 2022; 14:nu14235038. [PMID: 36501067 PMCID: PMC9738822 DOI: 10.3390/nu14235038] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Vitamin A (VA) is critical for many biological processes, including embryonic development, hormone production and function, the maintenance and modulation of immunity, and the homeostasis of epithelium and mucosa. Specifically, VA affects cell integrity, cytokine production, innate immune cell activation, antigen presentation, and lymphocyte trafficking to mucosal surfaces. VA also has been reported to influence the gut microbiota composition and diversity. Consequently, VA deficiency (VAD) results in the imbalanced production of inflammatory and immunomodulatory cytokines, intestinal inflammation, weakened mucosal barrier functions, reduced reactive oxygen species (ROS) and disruption of the gut microbiome. Although VAD is primarily known to cause xerophthalmia, its role in the impairment of anti-infectious defense mechanisms is less defined. Infectious diseases lead to temporary anorexia and lower dietary intake; furthermore, they adversely affect VA status by interfering with VA absorption, utilization and excretion. Thus, there is a tri-directional relationship between VAD, immune response and infections, as VAD affects immune response and predisposes the host to infection, and infection decreases the intestinal absorption of the VA, thereby contributing to secondary VAD development. This has been demonstrated using nutritional and clinical studies, radiotracer studies and knockout animal models. An in-depth understanding of the relationship between VAD, immune response, gut microbiota and infections is critical for optimizing vaccine efficacy and the development of effective immunization programs for countries with high prevalence of VAD. Therefore, in this review, we have comprehensively summarized the existing knowledge regarding VAD impacts on immune responses to infections and post vaccination. We have detailed pathological conditions associated with clinical and subclinical VAD, gut microbiome adaptation to VAD and VAD effects on the immune responses to infection and vaccines.
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Electrochemical vitamin sensors: A critical review. Talanta 2021; 222:121645. [DOI: 10.1016/j.talanta.2020.121645] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/04/2020] [Accepted: 09/05/2020] [Indexed: 02/06/2023]
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5
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Gannon BM, Jones C, Mehta S. Vitamin A Requirements in Pregnancy and Lactation. Curr Dev Nutr 2020; 4:nzaa142. [PMID: 32999954 PMCID: PMC7513584 DOI: 10.1093/cdn/nzaa142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/06/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023] Open
Abstract
Pregnancy and lactation are critical life stages with unique nutritional requirements, including for vitamin A (VA). Current DRIs for VA were published in 2001. The objective of this review was to identify and categorize evidence related to VA requirements in pregnancy and lactation since these DRIs were formulated. We searched MEDLINE and included articles according to an analytic framework of maternal VA exposure on status and health outcomes in the mother-child dyad. Intermediate and indirect evidence supports that maternal VA intakes can impact the mother's VA status, breastmilk, and health outcomes, as well as the child's VA status and select health outcomes. Food-based approaches can lead to more sustained, sufficient VA status in mothers and children. Research needs include further study linking maternal VA intakes on maternal and child VA status, and further associations with outcomes to determine intake requirements to optimize health.
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Affiliation(s)
- Bryan M Gannon
- Division of Nutritional Sciences, and Institute for Nutritional Sciences, Global Health, and Technology (INSiGHT), Cornell University, Ithaca, NY, USA
| | - Camille Jones
- Division of Nutritional Sciences, and Institute for Nutritional Sciences, Global Health, and Technology (INSiGHT), Cornell University, Ithaca, NY, USA
| | - Saurabh Mehta
- Division of Nutritional Sciences, and Institute for Nutritional Sciences, Global Health, and Technology (INSiGHT), Cornell University, Ithaca, NY, USA
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de Souza Mesquita LM, Mennitti LV, de Rosso VV, Pisani LP. The role of vitamin A and its pro-vitamin carotenoids in fetal and neonatal programming: gaps in knowledge and metabolic pathways. Nutr Rev 2020; 79:76-87. [DOI: 10.1093/nutrit/nuaa075] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Abstract
Vitamin A (VA) and its pro-vitamin carotenoids are naturally occurring lipophilic compounds involved in several cellular processes and metabolic pathways. Despite their broad spectrum of activities in the general population, dietary deficiencies of these compounds can potentially affect pregnancy outcomes. Since maternal nutritional status and diet composition during pregnancy and lactation can have long-lasting effects in offspring until adulthood, this study presents an overview of VA and the role of pro-VA carotenoids during pregnancy and lactation – the nutrition, metabolism, and biological effects in the offspring. The review aimed to discuss the pro-VA carotenoids and VA-associated pathways and summarize the results with reference to gestational disorders, and VA and pro-VA carotenoids as preventive agents. Also, considering that obesity, overweight, and metabolic diseases are major public health concerns worldwide, fetal and neonatal development is discussed, highlighting the physiological role of these molecules in obesity prevention. This review comprehensively summarizes the current data and shows the potential impact of these compounds on nutritional status in pregnancy and lactation.
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Affiliation(s)
- Leonardo M de Souza Mesquita
- Departamento de Biociências, Laboratório de Nutrição e Fisiologia Endócrina (LaNFE), Universidade Federal de São Paulo, Vila Mathias, Santos, São Paulo, Brazil
| | - Laís V Mennitti
- Departamento de Biociências, Laboratório de Nutrição e Fisiologia Endócrina (LaNFE), Universidade Federal de São Paulo, Vila Mathias, Santos, São Paulo, Brazil
| | - Veridiana V de Rosso
- Departamento de Biociências, Laboratório de Nutrição e Fisiologia Endócrina (LaNFE), Universidade Federal de São Paulo, Vila Mathias, Santos, São Paulo, Brazil
| | - Luciana P Pisani
- Departamento de Biociências, Laboratório de Nutrição e Fisiologia Endócrina (LaNFE), Universidade Federal de São Paulo, Vila Mathias, Santos, São Paulo, Brazil
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How Dietary Deficiency Studies Have Illuminated the Many Roles of Vitamin A During Development and Postnatal Life. Subcell Biochem 2020; 95:1-26. [PMID: 32297294 DOI: 10.1007/978-3-030-42282-0_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Vitamin A deficiency studies have been carried out since the early 1900s. Initially, these studies led to the identification of fat soluble A as a unique and essential component of the diet of rodents, birds, and humans. Continuing work established that vitamin A deficiency produces biochemical and physiological dysfunction in almost every vertebrate organ system from conception to death. This chapter begins with a review of representative historical and current studies that used the nutritional vitamin A deficiency research model to gain an understanding of the many roles vitamin A plays in prenatal and postnatal development and well-being. This is followed by a discussion of recent studies that show specific effects of vitamin A deficiency on prenatal development and postnatal maintenance of the olfactory epithelium, brain, and heart. Vitamin A deficiency studies have helped define the necessity of vitamin A for the health of all vertebrates, including farm animals, but the breadth of deficient states and their individual effects on health have not been fully determined. Future work is needed to develop tools to assess the complete vitamin A status of an organism and to define the levels of vitamin A that optimally support molecular and systems level processes during all ages and stages of life.
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Bastos Maia S, Rolland Souza AS, Costa Caminha MDF, Lins da Silva S, Callou Cruz RDSBL, Carvalho Dos Santos C, Batista Filho M. Vitamin A and Pregnancy: A Narrative Review. Nutrients 2019; 11:nu11030681. [PMID: 30909386 PMCID: PMC6470929 DOI: 10.3390/nu11030681] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/15/2019] [Accepted: 03/19/2019] [Indexed: 12/13/2022] Open
Abstract
Vitamin A is a crucial micronutrient for pregnant women and their fetuses. In addition to being essential for morphological and functional development and for ocular integrity, vitamin A exerts systemic effects on several fetal organs and on the fetal skeleton. Vitamin A requirements during pregnancy are therefore greater. Vitamin A deficiency (VAD) remains the leading cause of preventable blindness in the world. VAD in pregnant women is a public health issue in most developing countries. In contrast, in some developed countries, excessive vitamin A intake during pregnancy can be a concern since, when in excess, this micronutrient may exert teratogenic effects in the first 60 days following conception. Routine prenatal vitamin A supplementation for the prevention of maternal and infant morbidity and mortality is not recommended; however, in regions where VAD is a public health issue, vitamin A supplementation is recommended to prevent night blindness. Given the importance of this topic and the lack of a complete, up-to-date review on vitamin A and pregnancy, an extensive review of the literature was conducted to identify conflicting or incomplete data on the topic as well as any gaps in existing data.
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Affiliation(s)
- Sabina Bastos Maia
- Maternal and Child Healthcare Postgraduate Program, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife 50070-550, Pernambuco, Brazil.
- Department of Obstetrics and Gynecology, Lauro Wanderley University Hospital, Federal University of Paraíba (UFPB), João Pessoa 58059-900, Paraíba, Brazil.
| | - Alex Sandro Rolland Souza
- Maternal and Child Healthcare Postgraduate Program, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife 50070-550, Pernambuco, Brazil.
- Department of Maternal and Child Healthcare, Federal University of Pernambuco (UFPE), Recife 50670-901, Pernambuco, Brazil.
- Biological and Health Sciences Center, Catholic University of Pernambuco (UNICAP), Recife 50050-900, Pernambuco, Brazil.
| | - Maria de Fátima Costa Caminha
- Maternal and Child Healthcare Postgraduate Program, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife 50070-550, Pernambuco, Brazil.
- Coordination of the Nursing Mentoring Program, Faculdade Pernambucana de Saúde (FPS), Recife 51180-001, Pernambuco, Brazil.
| | - Suzana Lins da Silva
- Maternal and Child Healthcare Postgraduate Program, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife 50070-550, Pernambuco, Brazil.
- Coordination of the Nursing Mentoring Program, Faculdade Pernambucana de Saúde (FPS), Recife 51180-001, Pernambuco, Brazil.
| | | | | | - Malaquias Batista Filho
- Maternal and Child Healthcare Postgraduate Program, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife 50070-550, Pernambuco, Brazil.
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9
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Vitamin A Deficiency and the Lung. Nutrients 2018; 10:nu10091132. [PMID: 30134568 PMCID: PMC6164133 DOI: 10.3390/nu10091132] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/13/2018] [Accepted: 08/17/2018] [Indexed: 12/12/2022] Open
Abstract
Vitamin A (all-trans-retinol) is a fat-soluble micronutrient which together with its natural derivatives and synthetic analogues constitutes the group of retinoids. They are involved in a wide range of physiological processes such as embryonic development, vision, immunity and cellular differentiation and proliferation. Retinoic acid (RA) is the main active form of vitamin A and multiple genes respond to RA signalling through transcriptional and non-transcriptional mechanisms. Vitamin A deficiency (VAD) is a remarkable public health problem. An adequate vitamin A intake is required in early lung development, alveolar formation, tissue maintenance and regeneration. In fact, chronic VAD has been associated with histopathological changes in the pulmonary epithelial lining that disrupt the normal lung physiology predisposing to severe tissue dysfunction and respiratory diseases. In addition, there are important alterations of the structure and composition of extracellular matrix with thickening of the alveolar basement membrane and ectopic deposition of collagen I. In this review, we show our recent findings on the modification of cell-junction proteins in VAD lungs, summarize up-to-date information related to the effects of chronic VAD in the impairment of lung physiology and pulmonary disease which represent a major global health problem and provide an overview of possible pathways involved.
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Raja Gopal Reddy M, Mullapudi Venkata S, Putcha UK, Jeyakumar SM. Vitamin A deficiency induces endoplasmic reticulum stress and apoptosis in pancreatic islet cells: Implications of stearoyl-CoA desaturase 1-mediated oleic acid synthesis. Exp Cell Res 2018; 364:104-112. [PMID: 29409806 DOI: 10.1016/j.yexcr.2018.01.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/25/2018] [Accepted: 01/29/2018] [Indexed: 12/30/2022]
Abstract
Previously, we reported that vitamin A deficiency resulted in the reduction of stearoyl-CoA desaturase 1 (SCD1) and monounsaturated fatty acid (MUFA) levels, which corroborated with attenuation of high fructose-induced hepatic steatosis. Here, we aimed at assessing the effect of vitamin A deficiency on SCD1, MUFA levels and their impact on pancreas' structure and functions. Male weanling Wistar rats fed one of the four diets, namely control (Con), vitamin A-deficient (VAD), highfructose (HFr) and vitamin A-deficient diet with highfructose (VADHFr) for 16 weeks period. Compared to the control, feeding of VAD diet (alone or with HFr) resulted in pancreatic intra-islet vessel dilation and reduced plasma insulin, glucagon and C-peptide levels, however, glucose levels decreased only in VADHFr group. In line with plasma levels, VAD diet-fed animals displayed lower immunostaining for insulin and glucagon, which corroborated with increased apoptotic staining observed in the islet regions, possibly due to increased cellular stress, as indicated by high immunostaining for endothelial nitric oxide synthase (eNOS) and CCAAT/Enhancer-binding protein homologues protein (CHOP). On the other hand, it significantly decreased the SCD1 protein, which corroborated with reduced MUFA levels, particularly, oleic acid (C18:1), when compared to the control and HFr groups. In conclusion, chronic vitamin A deficiency altered the structure and functions of pancreas by diminishing the islet cells, possibly by inducing cellular stress-mediated apoptosis and decreasing SCD1-mediated oleic acid (C18:1) synthesis. Thus, the data suggest that unlike liver, the reduction in SCD1 and MUFA levels in the pancreas exerts deleterious effects on its functions and perturb the overall cellular metabolism.
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Affiliation(s)
- M Raja Gopal Reddy
- Lipid Biochemistry Division, National Institute of Nutrition, Jamai Osmania-Post, Hyderabad 500007, India
| | - S Mullapudi Venkata
- Pathology Division, National Institute of Nutrition, Jamai Osmania-Post, Hyderabad 500007, India
| | - U K Putcha
- Pathology Division, National Institute of Nutrition, Jamai Osmania-Post, Hyderabad 500007, India
| | - S M Jeyakumar
- Lipid Biochemistry Division, National Institute of Nutrition, Jamai Osmania-Post, Hyderabad 500007, India.
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Du Q, Luo ZC, Nuyt AM, Audibert F, Julien P, Wei SQ, Zhang DL, Fraser W, Levy E. Vitamin A and E Nutritional Status in Relation to Leptin, Adiponectin, IGF-I and IGF-II in Early Life - a Birth Cohort Study. Sci Rep 2018; 8:100. [PMID: 29311590 PMCID: PMC5758521 DOI: 10.1038/s41598-017-18531-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 12/12/2017] [Indexed: 01/26/2023] Open
Abstract
The metabolic health effects of vitamin A and E nutritional status in early life are largely unknown. We assessed whether vitamin A and vitamin E nutritional status may affect circulating leptin, adiponectin, insulin-like growth factor (IGF)-I and IGF-II levels in early life in humans. In a singleton birth cohort (n = 248), vitamin A and E nutritional status in fetuses/newborns were assessed by cord plasma concentrations of retinol, β-carotene, α- and γ-tocopherols. The primary outcomes were cord plasma leptin, adiponectin, IGF-I and IGF-II concentrations. Cord plasma retinol was significantly positively correlated to IGF-I in girls (r = 0.42, P < 0.0001) but not in boys (r = 0.14, P = 0.11). Adjusting for maternal and newborn's characteristics, one log unit increase in cord plasma retinol was associated with a 28.0% (95% CI: 11.1-47.5%) increase in IGF-I in girls (P < 0.001) but not in boys (P = 0.75). One log unit increment in cord plasma α-tocopherol was associated with a 6.6% (0.4-12.3%) decrease in adiponectin (P = 0.04), while one log unit increment in cord plasma γ-tocopherol was associated with a 21.2% (4.7-34.8%) decrease in leptin (P = 0.01). There may be a sex-specific association between retinol and IGF-I, a negative association between α-tocopherol and adiponectin, and a negative association between γ-tocopherol and leptin in early life in humans.
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Affiliation(s)
- Qinwen Du
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 464200, China
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
| | - Zhong-Cheng Luo
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 464200, China.
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada.
| | - Anne Monique Nuyt
- Department of Pediatrics, University of Montreal, Montreal, H3T 1C5, Canada
| | - Francois Audibert
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
| | - Pierre Julien
- Departments of Medicine and Endocrinology and Nephrology, CHU-Quebec Laval University Research Center, Quebec City, G1V 4G2, Canada
| | - Shu-Qin Wei
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
| | - Dan-Li Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, 464200, China
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
| | - William Fraser
- Department of Obstetrics and Gynecology, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
- Department of Obstetrics and Gynecology, University of Sherbrooke, Sherbrooke, J1H 5N4, Canada
| | - Emile Levy
- Department of Nutrition, Sainte-Justine Hospital Research Center, University of Montreal, Montreal, H3T 1C5, Canada
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