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Notario-Barandiaran L, Signes-Pastor AJ, Laue HE, Abuawad A, Jackson BP, Madan JC, Karagas MR. Association between Mediterranean diet and metal mixtures concentrations in pregnant people from the New Hampshire Birth Cohort Study. Sci Total Environ 2024; 912:169127. [PMID: 38070554 PMCID: PMC10842702 DOI: 10.1016/j.scitotenv.2023.169127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/02/2023] [Accepted: 12/03/2023] [Indexed: 01/18/2024]
Abstract
Diet is a primary source of nutrients but also toxic metal exposure. In pregnancy, balancing essential metal exposure while reducing non-essential ones is vital for fetal and maternal health. However, the effect of metal mixtures from diets like the Mediterranean, known for health benefits, remains unclear. This study aimed to explore the association between Mediterranean diet adherence and metals exposure, both individually and as mixtures. The study involved 907 pregnant participants from the New Hampshire Birth Cohort Study. We calculated the relative Mediterranean diet score (rMED) through a validated food frequency questionnaire, which includes 8 traditional Mediterranean dietary components. Also, at ~24-28 weeks of gestation, we used ICP-MS to measure speciation of Al, Cd, Co, Cu, Fe, Hg, Mo, Ni, Sb, Se, Sn, Zn, and As in urine, as well as Pb, Hg, As, Ni, and Se in toenails. We used multiple linear regression and Weighted Quantile Sum regression to analyze the association between rMED and metal mixtures. The models were adjusted for age, pre-pregnancy BMI, smoking during pregnancy, and educational level. High adherence to the Mediterranean diet was associated with increased urinary Al (® = 0.26 (95 % confidence interval (CI) = 0.05; 0.46)), Cd (β = 0.12 (95%CI = 0.00; 0.24)), Mo (β = 0.10 (95%CI = 0.00; 0.20)), and AsB (β = 0.88 (95%CI = 0.49; 1.27)) as well as toenail Hg (β = 0.44 (95%CI = 0.22; 0.65)), Ni (β = 0.37 (95%CI = 0.06; 0.67)), and Pb (β = 0.22 (95%CI = 0.03; 0.40)) compared to those with low adherence. The intake of fruits and nuts, fish and seafood, legumes, cereals, meat, and olive oil were found to be related to the metal biomarkers within the rMED. In conclusion, the Mediterranean diet enhances essential metal intake but may also increase exposure to harmful ones.
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Affiliation(s)
- L Notario-Barandiaran
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA.
| | - A J Signes-Pastor
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA; Unidad de Epidemiología de la Nutrición, Universidad Miguel Hernández, Alicante 03550, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III (ISCIII), Madrid 28029, Spain; Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante 03010, Spain
| | - H E Laue
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
| | - A Abuawad
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
| | - B P Jackson
- Trace Element Analysis Laboratory, Earth Sciences, Dartmouth College, Hanover, NH 03755, USA
| | - J C Madan
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA; Department of Psychiatry and Pediatrics, Children's Hospital at Dartmouth, Lebanon, NH 03756, USA
| | - M R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
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Huang T, Lu F. Genetically predicted circulating concentrations of micronutrients and risk of hypertensive disorders of pregnancy: a Mendelian randomization study. Arch Gynecol Obstet 2024:10.1007/s00404-023-07331-y. [PMID: 38194093 DOI: 10.1007/s00404-023-07331-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024]
Abstract
PURPOSE Epidemiological studies examining the association between circulating micronutrients and the risk of hypertensive disorders during pregnancy (HDP) have produced inconsistent results. Therefore, we conducted a Mendelian randomization (MR) analysis to evaluate the potential causal relationship between micronutrients and HDP. METHODS Nine micronutrients (beta-carotene, vitamin B6, vitamin B12, calcium, zinc, selenium, copper, folate, and phosphorus) were selected as the exposure factors. Summary data for gestational hypertension (14,727 cases and 196,143 controls) and preeclampsia/eclampsia (7212 cases and 174,266 controls) were extracted from the FinnGen consortium. The MR analysis employed the inverse variance weighted method and conducted a range of sensitivity analyses. RESULTS The inverse variance weighted method indicated no significant causal relationship between nine genetically predicted micronutrient concentrations and gestational hypertension, as well as preeclampsia/eclampsia. Sensitivity analyses suggested the absence of pleiotropy. CONCLUSION There is no strong evidence to support the causation between circulating micronutrients and hypertensive disorder during pregnancy.
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Affiliation(s)
- Ting Huang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Fan Lu
- Department of Emergency, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.
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Ter Borg S, Koopman N, Verkaik-Kloosterman J. An Evaluation of Food and Nutrient Intake among Pregnant Women in The Netherlands: A Systematic Review. Nutrients 2023; 15:3071. [PMID: 37447397 DOI: 10.3390/nu15133071] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Nutritional deficiencies during pregnancy can have serious consequences for the health of the (unborn) child. This systematic review provides an updated overview of the available food and nutrient intake data for pregnant women in The Netherlands and an evaluation based on the current recommendations. Embase, MEDLINE, and national institute databases were used. Articles were selected if they had been published since 2008 and contained data on food consumption, nutrient intake, or the status of healthy pregnant women. A qualitative comparison was made with the 2021 Dutch Health Council recommendations and reference values. A total of 218 reports were included, representing 54 individual studies. Dietary assessments were primarily performed via food frequency questionnaires. Protein, vitamin A, thiamin, riboflavin, vitamin B6, folate, vitamin B12, vitamin C, iron, calcium, and magnesium intakes seemed to be adequate. For folate and vitamin D, supplements were needed to reach the recommended intake. The reasons for concern are the low intakes of fruits, vegetables, and (fatty) fish, and the intakes of alcohol, sugary drinks, and salt. For several foods and nutrients, no or limited intake data were found. High-quality, representative, and recent data are needed to evaluate the nutrient intake of pregnant women in order to make accurate assessments and evaluations, supporting scientific-based advice and national nutritional policies.
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Affiliation(s)
- Sovianne Ter Borg
- National Institute for Public Health and the Environment, 3721 BA Bilthoven, The Netherlands
| | - Nynke Koopman
- National Institute for Public Health and the Environment, 3721 BA Bilthoven, The Netherlands
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Chilukuri N, Bustamante-Helfrich B, Ji Y, Wang G, Hong X, Cheng TL, Wang X. Maternal folate status and placental vascular malperfusion: Findings from a high-risk US minority birth cohort. Placenta 2022; 129:87-93. [PMID: 36274480 DOI: 10.1016/j.placenta.2022.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Maternal folate deficiency was associated with preeclampsia (PE) and PE was associated with placental maternal vascular malperfusion (MVM). However, no study has examined the association of maternal folate status with placental MVM. METHODS We examined the association of maternal folate status and placental MVM in the Boston Birth Cohort. Primary exposure variables were maternal self-reported multivitamin supplement (<2, 3-5, >5 times/week) per trimester; and plasma folate levels (nmol/L) after birth. Primary outcome was presence/absence of placental MVM defined by the Amsterdam Placental Workshop Group standard classification. Covariates included demographics, chronic hypertension, clinically diagnosed PE, eclampsia and HELLP syndrome, gestational and pre-gestational diabetes, overweight/obesity, maternal cigarette smoking and alcohol use. Associations between folate and placental MVM were evaluated using multivariate logistic regressions. RESULTS Of 3001 mothers in this study, 18.8% of mothers had PE, 37.5% had MVM. Mothers with the lowest self-reported frequency of folate intake had the highest risk of MVM (OR 1.45, 95% CI 1.03-2.05), after adjusting for the covariates. Consistently, among a subset of 939 mothers with plasma folate levels, folate insufficiency was associated with increased risk of MVM (OR 1.65, 95% CI 1.03-2.63), after adjusting for the covariables. As expected, mothers with low folate and placental MVM had highest rates of PE compared to those of high folate and no MVM (p < 0.001). DISCUSSION In this high-risk birth cohort, low maternal folate status was associated with increased risk of placental MVM. Further investigation should explore the association between folate status, placental findings and the great obstetrical syndrome.
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Affiliation(s)
- Nymisha Chilukuri
- Department of Pediatrics, Johns Hopkins University School of Medicine, 200 North Wolfe Street, Suite 2088, Baltimore, MD, 21287, United States.
| | - Blandine Bustamante-Helfrich
- University of the Incarnate Word School of Osteopathic Medicine, 7615 Kennedy Hill, San Antonio, TX, 78235, United States.
| | - Yuelong Ji
- Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, United States.
| | - Guoying Wang
- Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, United States.
| | - Xiumei Hong
- Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, United States.
| | - Tina L Cheng
- University of Cincinnati, Cincinnati Children's Research Foundation, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 3016, Cincinnati, OH, 45229-3026, United States.
| | - Xiaobin Wang
- Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, United States.
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Ma S, Bo Y, Zhao X, Cao Y, Duan D, Dou W, Fu W, Zeng F, Lyu Q, Liu Y. One-carbon metabolism-related nutrients intake is associated with lower risk of preeclampsia in pregnant women: a matched case-control study. Nutr Res 2022; 107:218-227. [PMID: 36351308 DOI: 10.1016/j.nutres.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/07/2022] [Accepted: 10/09/2022] [Indexed: 11/07/2022]
Abstract
Many studies have suggested that folate plays a role in preeclampsia (PE) risks, but few studies have assessed folate-related 1-carbon metabolism (OCM)-related nutrients with the risk of PE. We hypothesized that OCM-related nutrients are associated with PE. A 1:1 matched case-control study was conducted to explore the association between dietary OCM-related nutrients intake and the risk of PE in pregnant Chinese women. Four hundred and forty pairs of pregnant women with PE and hospital-based, healthy pregnant women, matched according to gestational week (±1 week) and age (±3 years), were recruited. Dietary intake was assessed using a validated 78-item semiquantitative food frequency questionnaire. Multivariate conditional logistic regression was used to estimate odds ratios (ORs) and 95% CIs. Restricted cubic splines were plotted to evaluate the dose-response relationship between dietary OCM-related nutrient intake and the risk of PE. Intake of folate, vitamin B6, vitamin B12, methionine, and total choline were inversely related to the risk of PE after adjustment for covariates (all P trend < .05). Adjusted ORs (95% CIs) for quartile 4 versus quartile 1 were 0.71 (0.55-0.93) for folate, 0.66 (0.50-0.87) for vitamin B6, 0.68 (0.52-0.88) for vitamin B12, 0.77 (0.60-0.81) for methionine, and 0.67 (0.51-0.87) for total choline. This study suggests that dietary OCM-related nutrients intake is associated with lower odds of PE in pregnant Chinese women.
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Affiliation(s)
- Shunping Ma
- Department of Nutrition, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Yacong Bo
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou 450000, Henan, China.
| | - Xianlan Zhao
- Department of Obstetrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Yuan Cao
- The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Dandan Duan
- Department of Clinical Nutrition, Luoyang New Area People's Hospital, Luoyang 471023, Henan, China.
| | - Weifeng Dou
- Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou 450000, Henan, China.
| | - Wenjun Fu
- Department of Obstetrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Fangfang Zeng
- Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou 510632, Guangdong, Guangdong, China.
| | - Quanjun Lyu
- Department of Nutrition, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; Department of Nutrition and Food Hygiene, College of Public Health, Zhengzhou University, Zhengzhou 450000, Henan, China.
| | - Yanhua Liu
- Department of Nutrition, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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Yang L, Wang W, Mao B, Qiu J, Guo H, Yi B, He X, Lin X, Lv L, Xu X, Liu Q, Cao Y, Chen Y. Maternal Folic Acid Supplementation, Dietary Folate Intake, and Low Birth Weight: A Birth Cohort Study. Front Public Health 2022; 10:844150. [PMID: 35757618 PMCID: PMC9218084 DOI: 10.3389/fpubh.2022.844150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/08/2022] [Indexed: 11/19/2022] Open
Abstract
Objectives To investigate the independent and collective effects of maternal folic acid supplementation or dietary folate intake on the risk of low birth weight (LBW), and to further comprehensively examine the joint associations of folic acid supplementation and dietary folate intake with LBW by various clinical subtypes. Design Participants were recruited from Gansu Provincial Maternity and Child Care Hospital. A standardized and structured questionnaire was distributed to collect demographic factors, reproductive and medical history, occupational and residential history, physical activity, and diet. Data on pregnancy-related complications and birth outcomes were extracted from medical records. Unconditional logistic regression models were used to estimate the odds ratio (OR) and 95% confidence interval (95% CI) for single and joint associations of folic acid supplementation and dietary folate intake with LBW. Setting A birth cohort data analysis using the 2010–2012 Gansu Provincial Maternity and Child Care Hospital in Lanzhou, China. Participants In total, 9,231 pregnant women and their children were enrolled in the study. Results Compared with non-users, folic acid supplementation was associated with a reduced risk of LBW (OR: 0.80, 95% CI: 0.66–0.97), and the reduced risk was mainly seen for term-LBW (OR: 0.59, 95% CI: 0.41–0.85), and multiparous-LBW (OR: 0.72, 95% CI: 0.54–0.94). There were no significant associations between dietary folate intake and LBW, and there was no interaction between folic acid supplement and dietary folate intake on LBW. Conclusions Our study results indicated that folic acid supplementation was associated with a reduced risk of LBW, and there was no interaction between folic acid supplements and dietary folate intake on LBW.
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Affiliation(s)
- Liping Yang
- Department of Public Health and Infection Management, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Wenjuan Wang
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Baohong Mao
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Jie Qiu
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Huaqi Guo
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Bin Yi
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Xiaochun He
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Xiaojuan Lin
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Ling Lv
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Xiaoying Xu
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Qing Liu
- Department of Information Administration, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Yongchun Cao
- Department of Operation Management, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
| | - Yiming Chen
- Department of Human Resource, Gansu Provincial Maternity and Child Care Hospital, Lanzhou, China
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Cui Y, Liao M, Xu A, Chen G, Liu J, Yu X, Li S, Ke X, Tan S, Luo Z, Wang Q, Liu Y, Wang D, Zeng F. Association of maternal pre-pregnancy dietary intake with adverse maternal and neonatal outcomes: A systematic review and meta-analysis of prospective studies. Crit Rev Food Sci Nutr 2021:1-22. [PMID: 34666569 DOI: 10.1080/10408398.2021.1989658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This study aimed to summarize the evidence regarding the effects of dietary intake before conception on pregnancy outcomes by performing a systematic review and meta-analysis of prospective studies. Electronic databases were searched from inception up to August 2021. Overall, 65 studies involving 831 798 participants were included and 38 studies were quantitatively pooled. With regard to maternal outcomes, pre-pregnancy intake of fried food, fast food, red and processed meat, heme iron and a low-carbohydrate dietary pattern was positively associated with the risk of gestational diabetes mellitus (GDM) (all P < 0.05). However, a high dietary fiber intake and folic acid supplementation were negatively associated with GDM risk (both P < 0.05). With regard to neonatal outcomes, maternal caffeine intake before pregnancy significantly increased the risk of spontaneous abortion, while folic acid supplementation had protective effects on total adverse neonatal outcomes, preterm birth, and small-for-gestational age (SGA, all P < 0.05). However, no significant associations were found between adverse pregnancy outcomes (i.e., GDM and SGA) and the pre-pregnancy dietary intake of sugar-sweetened beverages, potato, fish, and carbohydrates and the Healthy Eating Index. Our study suggests that maintaining a healthy diet before conception has significant beneficial effects on pregnancy outcomes.Supplemental data for this article is available online at https://doi.org/10.1080/10408398.2021.1989658.
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Affiliation(s)
- Yunfeng Cui
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Minqi Liao
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Aihua Xu
- Department of Gynaecology and Obstetrics, Ganzhou Maternal and Child Health Hospital, Ganzhou, China
| | - Gengdong Chen
- Department of Obstetrics, Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, China
| | - Jun Liu
- Department of Preventive Medicine Laboratory, School of Public Health, Zunyi Medical University, Zunyi, China
| | - Xiaoxuan Yu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Shuna Li
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Xingyao Ke
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Sixian Tan
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Zeyan Luo
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Qian Wang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
| | - Yanhua Liu
- Department of Nutrition, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Donghong Wang
- Department of Gynaecology and Obstetrics, Affiliated Hospital of Zunyi Medical University, Guizhou, China
| | - Fangfang Zeng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
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Monasso GS, Santos S, Geurtsen ML, Heil SG, Felix JF, Jaddoe VWV. Associations of Early Pregnancy and Neonatal Circulating Folate, Vitamin B-12, and Homocysteine Concentrations with Cardiometabolic Risk Factors in Children at 10 y of Age. J Nutr 2021; 151:1628-1636. [PMID: 33758913 PMCID: PMC8243896 DOI: 10.1093/jn/nxab039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/03/2020] [Accepted: 02/02/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Higher circulating folate and vitamin B-12 concentrations and lower circulating homocysteine concentrations during pregnancy seem to be associated with fetal development. These micronutrients may also be associated with cardiometabolic health. OBJECTIVE We examined the associations of circulating folate, vitamin B-12, and homocysteine concentrations during pregnancy and in neonates with childhood cardiometabolic outcomes. METHODS This study was embedded in the Generation R Study, a population-based prospective cohort study from early pregnancy onward. We sampled blood in early pregnancy and cord blood. We measured cardiometabolic outcomes in the children at school age. Among 4449 children aged 10 y (median: 9.7; 95% range: 9.3, 10.7), we examined associations of plasma folate, serum vitamin B-12, and plasma homocysteine concentrations in early pregnancy and at birth with BMI, body fat distribution, heart rate, blood pressure, and insulin, glucose, and lipid concentrations, using linear regression models. Using logistic models, we examined the associations of these micronutrients with risks of overweight/obesity and clustering of cardiovascular risk factors. RESULTS One standard deviation score (SDS) higher maternal plasma folate concentration was associated with lower BMI (-0.04 SDS; 95% CI: -0.08, -0.01), android-to-gynoid fat ratio (-0.04 SDS; 95% CI: -0.07, -0.01), systolic blood pressure (-0.06 SDS; 95% CI: -0.10, -0.03), risk of overweight (OR: 0.87; 95% CI: 0.78, 0.96), and clustering of cardiovascular risk factors (OR: 0.79; 95% CI: 0.68, 0.91). One SDS higher maternal serum total B-12 concentration was associated with lower glucose (-0.06 SDS; 95% CI: -0.10, -0.02) and higher HDL cholesterol concentrations (0.04 SDS; 95% CI: 0.00, 0.08). Cord blood folate, vitamin B-12, and homocysteine concentrations were not consistently associated with cardiometabolic outcomes. CONCLUSIONS Subtle differences in circulating folate and vitamin B-12 concentrations in early pregnancy may be associated with child cardiometabolic health at age 10 y. The causality and mechanisms underlying these associations need further study.
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Affiliation(s)
- Giulietta S Monasso
- The Generation R Study Group, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands,Department of Pediatrics, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands
| | - Susana Santos
- The Generation R Study Group, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands,Department of Pediatrics, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands
| | - Madelon L Geurtsen
- The Generation R Study Group, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands,Department of Pediatrics, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands
| | - Sandra G Heil
- Department of Clinical Chemistry, Erasmus MC, University
Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Janine F Felix
- The Generation R Study Group, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands,Department of Pediatrics, Erasmus MC, University Medical
Center Rotterdam, Rotterdam, The
Netherlands
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Wiertsema CJ, Mensink-Bout SM, Duijts L, Mulders AGMGJ, Jaddoe VWV, Gaillard R. Associations of DASH Diet in Pregnancy With Blood Pressure Patterns, Placental Hemodynamics, and Gestational Hypertensive Disorders. J Am Heart Assoc 2020; 10:e017503. [PMID: 33356384 PMCID: PMC7955484 DOI: 10.1161/jaha.120.017503] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background The Dietary Approaches to Stop Hypertension (DASH) diet improves blood pressure in nonpregnant populations. We hypothesized that adherence to the DASH diet during pregnancy improves hemodynamic adaptations, leading to a lower risk of gestational hypertensive disorders. Methods and Results We examined whether the DASH diet score was associated with blood pressure, placental hemodynamics, and gestational hypertensive disorders in a population-based cohort study among 3414 Dutch women. We assessed DASH score using food-frequency questionnaires. We measured blood pressure in early-, mid-, and late pregnancy (medians, 95% range: 12.9 [9.8-17.9], 20.4 [16.6-23.2], 30.2 [28.6-32.6] weeks gestation, respectively), and placental hemodynamics in mid- and late pregnancy (medians, 95% range: 20.5 [18.7-23.1], 30.4 [28.5-32.8] weeks gestation, respectively). Information on gestational hypertensive disorders was obtained from medical records. Lower DASH score quartiles were associated with a higher mid pregnancy diastolic blood pressure, compared with the highest quartile (P<0.05). No associations were present for early- and late pregnancy diastolic blood pressure and systolic blood pressure throughout pregnancy. Compared with the highest DASH score quartile, the lower DASH score quartiles were associated with a higher mid- and late pregnancy umbilical artery pulsatility index (P≤0.05) but not with uterine artery resistance index. No associations with gestational hypertensive disorders were present. Conclusions A higher DASH diet score is associated with lower mid pregnancy diastolic blood pressure and mid- and late pregnancy fetoplacental vascular function but not with uteroplacental vascular function or gestational hypertensive disorders within a low-risk population. Further studies need to assess whether the effects of the DASH diet on gestational hemodynamic adaptations are more pronounced among higher-risk populations.
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Affiliation(s)
- Clarissa J Wiertsema
- The Generation R Study Group Erasmus MC, University Medical Center Rotterdam the Netherlands.,Department of Pediatrics Erasmus MC, University Medical Center Rotterdam the Netherlands
| | - Sara M Mensink-Bout
- The Generation R Study Group Erasmus MC, University Medical Center Rotterdam the Netherlands.,Division of Respiratory Medicine and Allergology Department of Pediatrics Erasmus MC, University Medical Center Rotterdam The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics Erasmus MC, University Medical Center Rotterdam the Netherlands.,Division of Respiratory Medicine and Allergology Department of Pediatrics Erasmus MC, University Medical Center Rotterdam The Netherlands
| | - Annemarie G M G J Mulders
- Departments of Obstetrics and Gynaecology Erasmus MC, University Medical Center Rotterdam the Netherlands
| | - Vincent W V Jaddoe
- The Generation R Study Group Erasmus MC, University Medical Center Rotterdam the Netherlands.,Department of Pediatrics Erasmus MC, University Medical Center Rotterdam the Netherlands
| | - Romy Gaillard
- The Generation R Study Group Erasmus MC, University Medical Center Rotterdam the Netherlands.,Department of Pediatrics Erasmus MC, University Medical Center Rotterdam the Netherlands
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Li Q, Xu S, Chen X, Zhang X, Li X, Lin L, Gao D, Wu M, Yang S, Cao X, Tan T, Hu W, Guo J, Huang L, Chen R, Zhou X, Cui W, Xiong T, Gao Q, Wu Y, Hong M, Wang X, Zhang G, Zhang Y, Zhong C, Xiong G, Yang H, Yang N, Yang X, Hao L, Jin Z, Yang N. Folic Acid Supplement Use and Increased Risk of Gestational Hypertension. Hypertension 2020; 76:150-156. [DOI: 10.1161/hypertensionaha.119.14621] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Current results regarding the effect of folic acid (FA) supplement use on gestational hypertension (GH) and preeclampsia are limited and inconsistent. We aimed to investigate whether FA supplement use was associated with GH and preeclampsia. Participants from the Tongji Maternal and Child Health Cohort with information on periconceptional FA supplement use and diagnosis of GH/preeclampsia were included (n=4853). Robust Poisson regression was used to assess the association of FA supplement use and GH and preeclampsia. Among the 4853 participants in this study, 1161 (23.9%) and 161 (3.3%) women were diagnosed with GH and preeclampsia, respectively. The risk ratio of developing GH was higher in women who used ≥800 µg/d FA supplement from prepregnancy through midpregnancy than nonusers (risk ratio, 1.33 [1.08–1.65]). After adjusting for social-demographic, reproductive, lifestyle factors, family history of hypertension, other supplement use, and gestational weight gain, the adverse association remained significant (risk ratio, 1.32 [1.06–1.64]). Restricting the analysis among women with normal weight, without family history of hypertension, and without gestational diabetes mellitus, the positive FA-GH association still existed. We did not find any significant association between FA supplement use and preeclampsia regardless of adjustment. High-dose (≥800 µg/d) FA supplement use from prepregnancy through midpregnancy was associated with increased risk of GH. Attention should be given to avoid the potential risk of GH due to inappropriate FA supplement use in women who are planning or capable of pregnancy.
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Affiliation(s)
- Qian Li
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Shangzhi Xu
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xi Chen
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xu Zhang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xiating Li
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Lixia Lin
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Duan Gao
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Meng Wu
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Sen Yang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xiyu Cao
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Tianqi Tan
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Wenqi Hu
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Jinrong Guo
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Li Huang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Renjuan Chen
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xuezhen Zhou
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Wenli Cui
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Ting Xiong
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Qin Gao
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Yuanjue Wu
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Miao Hong
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Xiaoyi Wang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Guofu Zhang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Yu Zhang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Chunrong Zhong
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | | | - Hongying Yang
- Institute of Health Education, Hubei Provincial Center for Disease Control and Prevention, Hubei Provincial Academy of Preventive Medicine, P.R. China (H.Y.)
| | - Nianlan Yang
- Department of Anesthesiology & Perioperative Medicine, Medical College of Georgia, Augusta University (Nianlan Yang)
| | - Xuefeng Yang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Liping Hao
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
| | - Zhichun Jin
- Hubei Maternal and Child Health Hospital, P.R. China (Z.J.)
| | - Nianhong Yang
- From the Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, P.R. China (Q.L., S.X., X. Chen, X. Zhang, X.L., L.L., D.G., M.W., S.Y., X. Cao, T.T., W.H., J.G., L. Huang, R.C., X. Zhou, W.C., T.X., Q.G., Y.W., M.H., X.W., G.Z., Y.Z., C.Z., X.Y., L. Hao, Nianhong Yang)
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Parisi F, Savasi VM, di Bartolo I, Mandia L, Cetin I. Associations between First Trimester Maternal Nutritional Score, Early Markers of Placental Function, and Pregnancy Outcome. Nutrients 2020; 12:nu12061799. [PMID: 32560356 PMCID: PMC7353423 DOI: 10.3390/nu12061799] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 02/05/2023] Open
Abstract
This study investigated the associations between maternal adherence to a healthy diet, first trimester placental markers, and pregnancy outcome. Singleton spontaneous pregnancies were enrolled at 11+0-13+6 gestational weeks in a prospective cohort study. A nutritional score (0-10) measuring the adherence to a healthy diet was calculated. A transabdominal ultrasound scan for placental marker assessment was performed (uterine artery (UtA) doppler, placental volume). Biochemical placental markers were recorded (Pregnancy Associated Plasma Protein A (PAPP-A), free β- Human Chorionic Gonadotropin (HCG)). Birth outcomes were obtained from medical records. Associations between the maternal nutritional score, first trimester placental markers, and pregnancy outcome were investigated by using multi-adjusted general linear models. In total, 112 pregnancies were enrolled with a median nutritional score of 7 (range 3-10). Median gestational age at birth was 277 days (range 203-296). The nutritional score was positively associated with PAPP-A concentrations, whereas a negative association was detected with the UtA mean pulsatility index and placental volume. A positive association was detected between nutritional score and gestational age at birth. This study demonstrates that a first trimester nutritional score as a measure of adherence to a healthy diet is significantly associated with early biochemical and ultrasound markers of placental development, with further association with gestational age at birth.
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Affiliation(s)
- Francesca Parisi
- Department of Woman, Child and Neonate, Buzzi Children Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (I.d.B.); (I.C.)
- Correspondence: ; Tel.: +39-02-6363-5369
| | - Valeria M. Savasi
- Department of Woman, Child and Neonate, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (V.M.S.); (L.M.)
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20122 Milan, Italy
| | - Ilenia di Bartolo
- Department of Woman, Child and Neonate, Buzzi Children Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (I.d.B.); (I.C.)
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20122 Milan, Italy
| | - Luca Mandia
- Department of Woman, Child and Neonate, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (V.M.S.); (L.M.)
| | - Irene Cetin
- Department of Woman, Child and Neonate, Buzzi Children Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (I.d.B.); (I.C.)
- Department of Woman, Child and Neonate, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, 20154 Milan, Italy; (V.M.S.); (L.M.)
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20122 Milan, Italy
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12
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González-Fernández D, Pons EDC, Rueda D, Sinisterra OT, Murillo E, Scott ME, Koski KG. Identification of High-Risk Pregnancies in a Remote Setting Using Ambulatory Blood Pressure: The MINDI Cohort. Front Public Health 2020; 8:86. [PMID: 32292772 PMCID: PMC7121149 DOI: 10.3389/fpubh.2020.00086] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 03/03/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Ambulatory blood pressure is a potential tool for early detection of complications during pregnancy, but its utility in impoverished settings has not been assessed. This cross-sectional study aimed to determine whether maternal infections, nutrient deficiencies and inflammation (MINDI) were associated with four measures of maternal blood pressure (BP) and to determine their association with symphysis-fundal-height (SFH). Methods: Environmental and dietary factors, intake of iron and a multiple-nutrient supplement (MNS), markers of inflammation, protein, anemia, folate, vitamins B12, A and D status, and urogenital, skin, oral and intestinal nematode infections were measured in indigenous pregnant Panamanian women. Stepwise multiple linear and logistic regression models explored determinants of systolic and diastolic blood pressure (SBP, DBP), hypotension (SBP < 100 and DBP < 60), mean arterial pressure (MAP), elevated MAP (eMAP), and pulse pressure (PP). Associations of BP with intestinal nematodes and with SFH Z scores (≥16 wk) were also explored. Results: Despite absence of high SBP or DBP, 11.2% of women had eMAP. Furthermore, 24.1% had hypotension. Linear regression showed that hookworm infection was associated with higher SBP (P = 0.049), DBP (P = 0.046), and MAP (P = 0.016), whereas Ascaris was associated with lower DBP (P = 0.018) and MAP (P = 0.028). Trichomonas was also associated with lower SBP (P < 0.0001) and MAP (P = 0.009). The presence of Trichuris (OR: 6.7, 95% CI 1.0-44.5) and folic acid deficiency (OR: 6.9, 95% CI 1.4-33.8) were associated with increased odds of eMAP. The odds of low BP was higher in the presence of Ascaris (OR: 3.63 ± 2.28, P = 0.040), but odds were lowered by MNS (OR: 0.35 ± 0.11, P = 0.001), more intake of animal-source foods/wk (OR: 0.7, 95% CI 0.5-0.9) and by higher concentrations of IL-17 (OR: 0.87 ± 0.05, P = 0.016). Conclusion: MINDI were bi-directionally associated with blood pressure indicators. In this MINDI cohort, infections, nutrients and cytokines both raised, and lowered BP indices. The presence of eMAP identified pregnant women at risk of hypertension whereas low PP was associated with lower SFH. Therefore, MAP and PP may help in detecting women at risk of adverse pregnancy outcomes in settings with limited access to technology.
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Affiliation(s)
- Doris González-Fernández
- School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University (Macdonald Campus), Ste-Anne-de-Bellevue, QC, Canada
| | | | - Delfina Rueda
- "Comarca Ngäbe-Buglé" Health Region, Ministry of Health, San Félix, Panama
| | | | - Enrique Murillo
- Department of Biochemistry, University of Panama, Panama City, Panama
| | - Marilyn E Scott
- Faculty of Agricultural and Environmental Sciences, Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC, Canada
| | - Kristine G Koski
- School of Human Nutrition, Faculty of Agricultural and Environmental Sciences, McGill University (Macdonald Campus), Ste-Anne-de-Bellevue, QC, Canada
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13
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Reijnders IF, Mulders AGMGJ, van der Windt M, Steegers EAP, Steegers-Theunissen RPM. The impact of periconceptional maternal lifestyle on clinical features and biomarkers of placental development and function: a systematic review. Hum Reprod Update 2020; 25:72-94. [PMID: 30407510 DOI: 10.1093/humupd/dmy037] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/17/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Worldwide, placenta-related complications contribute to adverse pregnancy outcomes, such as pre-eclampsia, fetal growth restriction and preterm birth, with implications for the future health of mothers and offspring. The placenta develops in the periconception period and forms the interface between mother and embryo/fetus. An unhealthy periconceptional maternal lifestyle, such as smoking, alcohol and under- and over-nutrition, can detrimentally influence placental development and function. OBJECTIVE AND RATIONALE The impact of maternal lifestyle on placental health is largely unknown. Therefore, we aim to summarize the evidence of the impact of periconceptional maternal lifestyle on clinical features and biomarkers of placental development and function throughout pregnancy. SEARCH METHODS A comprehensive search in Medline, Embase, Pubmed, The Cochrane Library Web of Science and Google Scholar was conducted. The search strategy included keywords related to the maternal lifestyle, smoking, alcohol, caffeine, nutrition (including folic acid supplement intake) and body weight. For placental markers throughout pregnancy, keywords related to ultrasound imaging, serum biomarkers and histological characteristics were used. We included randomized controlled trials and observational studies published between January 2000 and March 2017 and restricted the analysis to singleton pregnancies and maternal periconceptional lifestyle. Methodological quality was scored using the ErasmusAGE tool. A protocol of this systematic review has been registered in PROSPERO International prospective register of systematic reviews (PROSPERO 2016:CRD42016045596). OUTCOMES Of 2593 unique citations found, 82 studies were included. The median quality score was 5 (range: 0-10). The findings revealed that maternal smoking was associated with lower first-trimester placental vascularization flow indices, higher second- and third-trimester resistance of the uterine and umbilical arteries and lower resistance of the middle cerebral artery. Although a negative impact of smoking on placental weight was expected, this was less clear. Alcohol use was associated with a lower placental weight. One study described higher second- and third-trimester placental growth factor (PlGF) levels after periconceptional alcohol use. None of the studies looked at caffeine intake. Adequate nutrition in the first trimester, periconceptional folic acid supplement intake and strong adherence to a Mediterranean diet, were all associated with a lower resistance of the uterine and umbilical arteries in the second and third trimester. A low caloric intake resulted in a lower placental weight, length, breadth, thickness, area and volume. Higher maternal body weight was associated with a larger placenta measured by ultrasound in the second and third trimester of pregnancy or weighed at birth. In addition, higher maternal body weight was associated with decreased PlGF-levels. WIDER IMPLICATIONS Evidence of the impact of periconceptional maternal lifestyle on placental health was demonstrated. However, due to poorly defined lifestyle exposures and time windows of investigation, unstandardized measurements of placenta-related outcomes and small sample sizes of the included studies, a cautious interpretation of the effect estimates is indicated. We suggest that future research should focus more on physiological consequences of unhealthy lifestyle during the critical periconception window. Moreover, we foresee that new evidence will support the development of lifestyle interventions to improve the health of mothers and their offspring from the earliest moment in life.
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Affiliation(s)
- Ignatia F Reijnders
- Department of Obstetrics and Gynaecology, Erasmus Medical Centre, University Medical Centre, Rotterdam, The Netherlands
| | - Annemarie G M G J Mulders
- Department of Obstetrics and Gynaecology, Erasmus Medical Centre, University Medical Centre, Rotterdam, The Netherlands
| | - Melissa van der Windt
- Department of Obstetrics and Gynaecology, Erasmus Medical Centre, University Medical Centre, Rotterdam, The Netherlands
| | - Eric A P Steegers
- Department of Obstetrics and Gynaecology, Erasmus Medical Centre, University Medical Centre, Rotterdam, The Netherlands
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Hoek J, Steegers-Theunissen RPM, Willemsen SP, Schoenmakers S. Paternal Folate Status and Sperm Quality, Pregnancy Outcomes, and Epigenetics: A Systematic Review and Meta-Analysis. Mol Nutr Food Res 2020; 64:e1900696. [PMID: 32032459 PMCID: PMC7317557 DOI: 10.1002/mnfr.201900696] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/22/2020] [Indexed: 12/28/2022]
Abstract
SCOPE The effectiveness of maternal folate in reducing the risk of congenital malformations during pregnancy is well established. However, the role of the paternal folate status is scarcely investigated. The aim of this study is to investigate the evidence of associations between the paternal folate status and sperm quality, sperm epigenome, and pregnancy outcomes. METHODS AND RESULTS Databases are searched up to December 2017 resulting in 3682 articles, of which 23 are retrieved for full-text assessment. Four out of thirteen human and two out of four animal studies show positive associations between folate concentrations and sperm parameters. An additional meta-analysis of four randomized controlled trials in subfertile men shows that the sperm concentration increases (3.54 95% confidence interval (CI) [-1.40 to 8.48]) after 3-6 months of 5 mg folic acid use per day compared to controls. Moreover, two out of two animal and one out of three human studies show significant alterations in the overall methylation of the sperm epigenome. One animal and one human study show associations between low folate intake and an increased risk of congenital malformations. CONCLUSIONS This systematic review and meta-analysis shows evidence of associations between paternal folate status and sperm quality, fertility, congenital malformations, and placental weight.
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Affiliation(s)
- Jeffrey Hoek
- Department Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands
| | | | - Sten P Willemsen
- Department Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands.,Department Biostatistics, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands
| | - Sam Schoenmakers
- Department Obstetrics and Gynecology, Erasmus MC, University Medical Center, Rotterdam, 3015GD, The Netherlands
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Guo H, Mao B, Wang M, Liu Q, Yang L, Xie Y, Wang Y, He X, Cui H, Lin X, Lv L, Zhou M, Xu X, Qiu J, Zhang Y. Folic acid supplementation, dietary folate intake and risk of small for gestational age in China. Public Health Nutr 2020; 23:1965-73. [PMID: 31787119 DOI: 10.1017/S1368980019003331] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To investigate the hypothesis that folic acid supplementation and dietary folate intake before conception and during pregnancy reduce the risk of small for gestational age (SGA) and to examine the joint effect of folic acid supplementation and dietary folate intake on the risk of SGA. DESIGN Participants were interviewed by trained study interviewers using a standardized and structured questionnaire. Information on birth outcomes and maternal complications was abstracted from medical records and dietary information was collected via a semi-quantitative FFQ before conception and during pregnancy. SETTING A birth cohort data analysis using the 2010-2012 Gansu Provincial Maternity and Child Care Hospital. PARTICIPANTS Women (n 8758) and their children enrolled in the study. RESULTS Folic acid supplementation was associated with a reduced risk of SGA (OR = 0·72, 95 % CI 0·60, 0·86), with the reduced risk seen mainly for SGA at ≥37 weeks of gestational age (OR = 0·70, 95 % CI 0·58, 0·85) and nulliparous SGA (OR = 0·67, 95 % CI 0·54, 0·84). There was no significant association between dietary folate intake and SGA risk. CONCLUSIONS Our study suggested that folic acid supplementation was associated with a reduced risk of SGA and the risk varied by preterm status and parity.
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16
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Martín-Calvo N, Mínguez-Alarcón L, Gaskins AJ, Nassan FL, Williams PL, Souter I, Hauser R, Chavarro JE. Paternal preconception folate intake in relation to gestational age at delivery and birthweight of newborns conceived through assisted reproduction. Reprod Biomed Online 2019; 39:835-843. [PMID: 31564651 DOI: 10.1016/j.rbmo.2019.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/20/2019] [Accepted: 07/09/2019] [Indexed: 01/16/2023]
Abstract
RESEARCH QUESTION Studies in rodents have shown that paternal folate intake prior to conception is associated with pregnancy and offspring outcomes. The aim of this study was to assess whether those associations might apply to humans as well. DESIGN Between 2007 and 2017, the study prospectively analysed data from 108 couples participating in a preconception cohort of couples undergoing fertility treatment using their own gametes, whose treatment resulted in 113 pregnancies during the course of the study. Paternal and maternal preconception folate intake was assessed using a validated food frequency questionnaire. Linear mixed models were used to assess whether paternal preconception folate intake was associated with gestational age at delivery and gestational age-specific birthweight, while accounting for correlated data and potential confounders. RESULTS In a multivariable-adjusted model, a 400 μg/day increase in preconception paternal folate intake was associated with a 2.6-day longer gestation (95% confidence interval 0.8-4.3) after adjusting for potential confounders, including maternal folate intake. Similar associations were found for folate from food and supplements. Maternal folate intake was not associated with gestational age at delivery. Neither paternal nor maternal folate intake was associated with gestational-age-specific birthweight. CONCLUSIONS Higher paternal preconception folate intake was associated with slightly longer gestation among live births achieved through assisted reproduction. The results suggest that preconception exposures of the father may have an impact on the health of his offspring, and therefore that preconception care should shift from a woman-centric to a couple-based approach.
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Affiliation(s)
- Nerea Martín-Calvo
- University of Navarra, Department of Preventive Medicine and Public Health, Instituto de Investigación Sanitaria de Navarra (IdISNA), Pamplona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute of Health, Madrid, Spain
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - Audrey J Gaskins
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 25 Shattuck Street, Boston MA, USA; Department of Epidemiology, University of Emory. Atlanta GA, USA
| | - Feiby L Nassan
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - Irene Souter
- Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA
| | - Jorge E Chavarro
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 25 Shattuck Street, Boston MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston MA, USA.
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17
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Serrano NC, Quintero-Lesmes DC, Becerra-Bayona S, Guio E, Beltran M, Paez MC, Ortiz R, Saldarriaga W, Diaz LA, Monterrosa Á, Miranda J, Mesa CM, Sanin JE, Monsalve G, Dudbridge F, Hingorani AD, Casas JP. Association of pre-eclampsia risk with maternal levels of folate, homocysteine and vitamin B12 in Colombia: A case-control study. PLoS One 2018; 13:e0208137. [PMID: 30521542 PMCID: PMC6283543 DOI: 10.1371/journal.pone.0208137] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/12/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Maternal serum concentrations of folate, homocysteine, and vitamin B12 have been associated with pre-eclampsia. Nevertheless, reported studies involve limited number of cases to reliably assess the nature of these associations. Our aim was to examine the relation of these three biomarkers with pre-eclampsia risk in a large Colombian population. MATERIALS AND METHODS Design: A case-control study. Setting: Cases of pre-eclampsia and healthy pregnant controls were recruited at the time of delivery from eight different Colombian cities between 2000 and 2012. Population or Sample: 2978 cases and 4096 controls were studied. Maternal serum concentrations of folate, homocysteine, and vitamin B12 were determined in 1148 (43.6%) cases and 1300 (31.7%) controls. Also, self-reported folic acid supplementation was recorded for 2563 (84%) cases and 3155 (84%) controls. Analysis: Adjusted odds ratios (OR) for pre-eclampsia were estimated for one standard deviation (1SD) increase in log-transformed biomarkers. Furthermore, we conducted analyses to compare women that reported taking folic acid supplementation for different periods during pregnancy. Main Outcomes Measures: Odds ratio for pre-eclampsia. RESULTS After adjusting for potential confounders in logistic regression models, the OR for pre-eclampsia was 0.80 (95% CI: 0.72, 0.90) for 1SD increase in log-folate, 1.16 (95%CI: 1.05, 1.27) for 1SD increase in log-homocysteine, and 1.10 (95%CI: 0.99, 1.22) for 1SD increase in log-vitamin B12. No interactions among the biomarkers were identified. Women who self-reported consumption of folic acid (1 mg/day) throughout their pregnancy had an adjusted OR for pre-eclampsia of 0.86 (95%CI: 0.67, 1.09) compared to women that reported no consumption of folic acid at any point during pregnancy. CONCLUSIONS Maternal serum concentrations of folate were associated as a protective factor for pre-eclampsia while concentrations of homocysteine were associated as a risk factor. No association between maternal vitamin B12 concentrations and preeclampsia was found.
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Affiliation(s)
- Norma C. Serrano
- Fundación Cardiovascular de Colombia, Floridablanca, Colombia
- Hospital Internacional de Colombia, Piedecuesta, Colombia
- Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
| | | | | | - Elizabeth Guio
- Fundación Cardiovascular de Colombia, Floridablanca, Colombia
| | - Mónica Beltran
- Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
- Universidad Industrial de Santander, Bucaramanga, Colombia
| | - María C. Paez
- Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
| | - Ricardo Ortiz
- Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
| | - Wilmar Saldarriaga
- Departamento de Ginecología y Obstetricia, Departamento de Morfología, Facultad de Salud, Universidad del Valle, Cali, Colombia
| | - Luis A. Diaz
- Universidad Industrial de Santander, Bucaramanga, Colombia
| | | | | | | | - José E. Sanin
- Universidad Pontificia Bolivariana, Bucaramanga, Colombia
| | | | - Frank Dudbridge
- Department of Health Sciences, Centre for Medicine, University of Leicester, Leicester, United Kingdom
| | - Aroon D. Hingorani
- Farr Institute of Health Informatics, University College London, London, United Kingdom
| | - Juan P. Casas
- Farr Institute of Health Informatics, University College London, London, United Kingdom
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18
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Liu C, Liu C, Wang Q, Zhang Z. Supplementation of folic acid in pregnancy and the risk of preeclampsia and gestational hypertension: a meta-analysis. Arch Gynecol Obstet 2018; 298:697-704. [PMID: 29978414 DOI: 10.1007/s00404-018-4823-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/13/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVES We aimed to systematically assess the relationship between folic acid supplementation in pregnancy and risk of preeclampsia and gestational hypertension. METHODS The relevant studies were included by retrieving the Embase, PubMed and Cochrane library databases. Data extraction was conducted by two investigators independently. The risk ratio (RR) and 95% confidence interval (CI) were used as effect indexes to evaluate the relationship between folic acid supplementation and risk of gestational hypertension or preeclampsia. A subgroup analysis was performed according to the supplementation patterns of folic acid. The homogeneity of the effect size was tested across the studies, and publication biases were examined. RESULTS In total, 13 cohort studies and 1 randomized controlled trial study was included, containing 160,562 and 149,320 women with and without folic acid supplementation during pregnancy. Pooled results showed that risk of gestational hypertension was not associated with the supplementation of folic acid. However, folic acid supplementation during pregnancy could significantly reduce the risk of preeclampsia. Moreover, the results of subgroup analysis showed that the decreased preeclampsia risk was associated with supplementation of multivitamins containing folic acid rather than folic acid alone. CONCLUSIONS Our findings indicate that the supplementation of multivitamins containing folic acid during pregnancy could significantly lower preeclampsia risk.
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Bulloch RE, Lovell AL, Jordan VMB, McCowan LME, Thompson JMD, Wall CR. Maternal folic acid supplementation for the prevention of preeclampsia: A systematic review and meta-analysis. Paediatr Perinat Epidemiol 2018; 32:346-357. [PMID: 29882975 DOI: 10.1111/ppe.12476] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Preeclampsia is a significant contributor to maternal and neonatal morbidity and mortality. Folic acid supplementation is recommended periconceptionally for the prevention of neural tube defects. Epidemiological evidence suggests that maternal folic acid supplementation may play a role in preventing other adverse birth outcomes. This systematic review aimed to investigate the effect of maternal folic acid supplementation during pregnancy on risk of preeclampsia and gestational hypertension. METHODS Multiple scientific databases and grey literature were searched for relevant studies. Studies were reviewed according to pre-specified inclusion and exclusion criteria. Study characteristics were summarised and study quality was assessed. A meta-analysis of observational studies was conducted to examine the effect of maternal folic acid supplementation on preeclampsia risk. RESULTS Meta-analysis of eight observational studies showed significantly lower odds of preeclampsia with folic acid supplementation in comparison to no folic acid supplementation: OR = 0.78 (95% CI 0.63, 0.98), with moderately high heterogeneity between studies. Subgroup analysis showed no significant subgroup difference between folic acid supplementation taken by itself, in comparison to folic acid taken in or alongside a multivitamin. CONCLUSION Low level evidence is available for a modest association between maternal folic acid supplementation and reduction in preeclampsia risk. Future studies should differentiate between early and late onset and mild vs severe preeclampsia, and should control for relevant confounders including the presence of multivitamin supplements. The protocol for this systematic review was prospectively registered with PROSPERO (CRD42015029310).
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Affiliation(s)
- Rhodi E Bulloch
- The Discipline of Nutrition and Dietetics, School of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Amy L Lovell
- The Discipline of Nutrition and Dietetics, School of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Vanessa M B Jordan
- The Department of Obstetrics and Gynaecology, School of Medicine, The University of Auckland, Auckland, New Zealand
| | - Lesley M E McCowan
- The Department of Obstetrics and Gynaecology, School of Medicine, The University of Auckland, Auckland, New Zealand
| | - John M D Thompson
- The Department of Paediatrics, Child and Youth Health, School of Medicine, The University of Auckland, Auckland, New Zealand
| | - Clare R Wall
- The Discipline of Nutrition and Dietetics, School of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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den Dekker HT, Jaddoe VWV, Reiss IK, de Jongste JC, Duijts L. Maternal folic acid use during pregnancy, methylenetetrahydrofolate reductase gene polymorphism, and child's lung function and asthma. Clin Exp Allergy 2017; 48:175-185. [PMID: 29117460 DOI: 10.1111/cea.13056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 09/18/2017] [Accepted: 10/14/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Folic acid supplement use during pregnancy might affect childhood respiratory health, potentially mediated by methylenetetrahydrofolate reductase polymorphism C677T (MTHFR-C677T) carriership. OBJECTIVES We examined the associations of maternal folic acid supplement use and folate, vitamin B12 and homocysteine concentrations during pregnancy with childhood lung function and asthma. METHODS This study was embedded in a population-based prospective cohort study among 5653 children. Folic acid supplement use was assessed by questionnaires. Folate, vitamin B12 and homocysteine plasma concentrations were measured in early pregnancy and at birth. At age 10 years, forced expiratory volume in 1 second (FEV1 ), forced vital capacity (FVC), FEV1 /FVC, forced expiratory flow between 25% and 75% (FEF25-75 ), at 75% of FVC (FEF75 ), and asthma were examined. RESULTS Maternal folic acid supplement use during pregnancy was associated with higher childhood FEV1 and FVC and with a lower FEV1 /FVC, compared with no folic acid supplement use. Among mothers carrying MTHFR-C677T variants, preconceptional start of folic acid supplement use was associated with lower FEV1 /FVC (-0.17 [-0.32, -0.02]) and FEF25-75 (-0.24 [-0.40, -0.07]). Among children carrying MTHFR-C677T wild-type, a higher vitamin B12 level at birth was associated with a lower FEV1 (-0.07 [-0.12, -0.01]) and FVC (-0.09 [-0.15, -0.04]). Folate and homocysteine concentrations were not consistently associated with lower childhood lung function or asthma. CONCLUSIONS Preconceptional start of maternal folic acid supplement use and higher vitamin B12 concentrations at birth might adversely affect childhood lung function depending on MTHFR-C677T carriership. The clinical implications need to be evaluated.
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Affiliation(s)
- H T den Dekker
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Division of Respiratory Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - V W V Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - I K Reiss
- Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - J C de Jongste
- Department of Pediatrics, Division of Respiratory Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - L Duijts
- Department of Pediatrics, Division of Respiratory Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Navarrete-Muñoz EM, Valera-Gran D, Garcia-de-la-Hera M, Gonzalez-Palacios S, Riaño I, Murcia M, Lertxundi A, Guxens M, Tardón A, Amiano P, Vrijheid M, Rebagliato M, Vioque J. High doses of folic acid in the periconceptional period and risk of low weight for gestational age at birth in a population based cohort study. Eur J Nutr 2017; 58:241-251. [PMID: 29181588 DOI: 10.1007/s00394-017-1588-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 11/21/2017] [Indexed: 12/24/2022]
Abstract
PURPOSE We investigated the association between maternal use of folic acid (FA) during pregnancy and child anthropometric measures at birth. METHODS We included 2302 mother-child pairs from a population-based birth cohort in Spain (INMA Project). FA dosages at first and third trimester of pregnancy were assessed using a specific battery questionnaire and were categorized in non-user, < 1000, 1000-4999, and ≥ 5000 µg/day. Anthropometric measures at birth (weight in grams, length and head circumference in centimetres) were obtained from medical records. Small for gestational age according to weight (SGA-w), length (SGA-l) and head circumference (SGA-hc) were defined using the 10th percentile based on Spanish standardized growth reference charts. Multiple linear and logistic regression analyses were used to explore the association between FA dosages in different stages of pregnancy and child anthropometric measures at birth. RESULTS In the multiple linear regression analysis, we found a tendency for a negative association between the use of high dosages of FA (≥ 5000 µg/day) in the periconceptional period of pregnancy and weight at birth compared to mothers who were non-users of FA (β = - 73.83; 95% CI - 151.71, 4.06). In the multiple logistic regression, a greater risk of SGA-w was also evident among children whose mothers took FA dosages of 1000-4999 (OR = 2.21; 95% CI 1.17, 4.19) and of ≥ 5000 µg/day (OR = 2.32; 95% CI 1.06, 5.08) compared to mothers non-users of FA in the periconceptional period of pregnancy. CONCLUSION Our findings suggest that a high dosage of FA (≥ 1000 µg/day) may be associated with an increased risk of SGA-w at birth.
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Affiliation(s)
- Eva María Navarrete-Muñoz
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Department of Public Health, History of Medicine and Gynecology, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Universidad Miguel Hernández, Ctra. Nacional 332 S/n, Sant Joan D'alacant, 03550, Alicante, Spain
| | - Desirée Valera-Gran
- Department of Public Health, History of Medicine and Gynecology, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Universidad Miguel Hernández, Ctra. Nacional 332 S/n, Sant Joan D'alacant, 03550, Alicante, Spain
| | - Manuela Garcia-de-la-Hera
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Department of Public Health, History of Medicine and Gynecology, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Universidad Miguel Hernández, Ctra. Nacional 332 S/n, Sant Joan D'alacant, 03550, Alicante, Spain
| | - Sandra Gonzalez-Palacios
- Department of Public Health, History of Medicine and Gynecology, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Universidad Miguel Hernández, Ctra. Nacional 332 S/n, Sant Joan D'alacant, 03550, Alicante, Spain
| | - Isolina Riaño
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Pediatric Service, Hospital San Agustin, Avilés, Asturias, Spain
| | - Mario Murcia
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain
| | - Aitana Lertxundi
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Instituto de Investigación Sanitaria, BIODONOSTIA, San Sebastian, Spain.,Departamento de Medicina Preventiva y Salud Pública, Universidad del País Vasco UPV-EHU, Leioa, Spain
| | - Mònica Guxens
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Adonina Tardón
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Department of Medicine, Universidad de Oviedo, Oviedo, Asturias, Spain
| | - Pilar Amiano
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastian, Spain
| | - Martine Vrijheid
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Marisa Rebagliato
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.,Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain.,Department of Medicine, Universitat Jaume I, Castellón de la Plana, Spain
| | - Jesus Vioque
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain. .,Department of Public Health, History of Medicine and Gynecology, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), Universidad Miguel Hernández, Ctra. Nacional 332 S/n, Sant Joan D'alacant, 03550, Alicante, Spain.
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Li N, Li Z, Ye R, Liu J, Ren A. Impact of Periconceptional Folic Acid Supplementation on Low Birth Weight and Small-for-Gestational-Age Infants in China: A Large Prospective Cohort Study. J Pediatr 2017; 187:105-110. [PMID: 28545876 DOI: 10.1016/j.jpeds.2017.04.060] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 04/18/2017] [Accepted: 04/26/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To explore the effects of maternal folic acid supplementation alone during pregnancy on the incidence of low birth weight (LBW) and small-for-gestational-age (SGA) infant status. STUDY DESIGN Data were derived from a large population-based cohort study performed in China to evaluate the prevention of neural tube defects with folic acid supplementation. The sample comprised 200 589 singleton live births registered in 2 southern Chinese provinces by mothers for whom detailed information on folic acid use was available. Gestational age was calculated from the first day of the last menstrual period. LBW was defined as a birth weight <2500 g. Infants were considered SGA when the age-adjusted birth weight was below the 10th percentile as defined by a national survey performed in 1998. Logistic regression was used to estimate the effects of folic acid after adjusting for the principal potential confounders. RESULTS The overall incidence of LBW and SGA status was 2.18% and 5.82%, respectively. The incidence of LBW and SGA status was 2.09% and 5.73% in women who took folic acid, and 2.27% and 5.90% in those who did not. The adjusted risk ratios associated with folic acid use were 0.85 (95% CI: 0.80-0.90) for LBW and 0.93 (95% CI: 0.89-0.96) for SGA status. Folic acid use during pregnancy appeared to be particularly important to prevent LBW and SGA status. CONCLUSIONS A maternal daily intake of 400 µg folic acid alone significantly reduced the risks of infant LBW and SGA status.
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Affiliation(s)
- Nan Li
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Zhiwen Li
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China.
| | - Rongwei Ye
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jianmeng Liu
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Aiguo Ren
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
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23
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Silva C, Keating E, Pinto E. The impact of folic acid supplementation on gestational and long term health: Critical temporal windows, benefits and risks. Porto Biomed J 2017; 2:315-332. [PMID: 32258789 DOI: 10.1016/j.pbj.2017.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 05/10/2017] [Accepted: 05/31/2017] [Indexed: 01/23/2023] Open
Abstract
Highlights Associations between FA supplementation in pregnancy and effects on offspring's NTDs, allergy/respiratory problems, cancer and behaviour problems as been studied.There is growing concern about the effects of excessive FA supplementation, whether in terms of doses or times of exposure.FA supplementation in the periconceptional period is protective against NTDs while in later periods it could be deleterious.A daily dose of 0.4 mg FA in the periconceptional period seems to be effective and safe. Abstract Maternal folic acid (FA) supplementation is one of the most popular nutritional interventions during pregnancy for its protective effect against neural tube defects (NTDs).The purposes of this review are: (a) to gather the current evidence regarding supplementation of maternal diet with FA and (b) to problematize the available literature in terms of dosages, critical temporal windows, and its potential benefits and risks.The expression (pregnancy OR fetus OR offspring OR mother) AND ("folic acid" AND supplementation) was searched on PubMed database, filtering for articles published from 2005 to 2014. Publications referring to FA supplementation during the periconceptional period or pregnancy in which there was a conclusion about the effects of isolated FA supplementation on pregnant woman, pregnancy or offspring were included. Of the initial 1182 papers, 109 fulfilled the inclusion criteria.The majority of the publications reported FA supplementation outcomes on offspring's health, with emphasis in NTDs, allergy/respiratory problems, cancer and behaviour problems. Some inconsistency is observed on the impact of FA supplementation on different outcomes, except for NTDs. It is also visible an increased concern about the impact of excessive supplementation, either in terms of doses or exposure's duration.In conclusion, there is a growing interest in FA supplementation issues. The protective effect of FA supplementation over NTDs has been confirmed, being the periconceptional period a critical window, and it is frequently suggested that allergy/respiratory outcomes arise from (excessive) FA supplementation particularly later in pregnancy. Further research on critical doses and time of exposure should be conducted.
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Affiliation(s)
- Carla Silva
- Faculty of Medicine of University of Porto, Porto, Portugal
| | - Elisa Keating
- Department of Biomedicine - Biochemistry Unit, Faculty of Medicine of University of Porto, Porto, Portugal.,CINTESIS - Center for Health Technology and Services Research, Porto, Portugal
| | - Elisabete Pinto
- CBQF - Centre of Biotechnology and Fine Chemistry - School of Biotechnology, Portuguese Catholic University, Porto, Portugal.,Institute of Public Health of the University of Porto, Porto, Portugal
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Shahraki AD, Dehkordi NZ, Lotfizadeh M. Comparison of high dose and low dose folic acid supplementation on prevalence, onset and severity of preeclampsia. Adv Biomed Res 2016; 5:192. [PMID: 28217630 PMCID: PMC5221122 DOI: 10.4103/2277-9175.190944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 10/20/2015] [Indexed: 11/18/2022] Open
Abstract
Background: Folic acid supplementation had previously mentioned as a protective factor against the onset of preeclampsia (PE). In this study, we aimed to compare the effect of high dose (5 mg daily) and low dose (1 mg daily) of folic acid supplementation on prevalence, onset and severity of PE. Materials and Methods: Pregnant women who were in the first trimester and referred to prenatal care university hospitals of Isfahan, Iran during October 2013–May 2015 were included in this study, then they were randomly divided into two groups of 5 mg and 1 mg (treated with daily 5 mg and 1 mg of folic acid, respectively), both groups received folic acid from the first trimester of pregnancy to 42 days after termination. Blood pressure, body mass index (BMI), and some urine and blood biochemistry parameters were measured. SPSS-22 used for statistical analysis. Results: A total of 943 pregnant women participated in the study (450 women in 1 mg group and 450 women in 5 mg group). Incidence rate of PE was 3.8% in 1 mg group and 2.4% in 5 mg group. In a comparison of preeclamptic patients in 1 mg and 5 mg group, no significant differences were seen regarding age, BMI, laboratory data, the severity of the disease, and onset (early or late) (P > 0.05). Conclusion: Although our findings support that administration of high dose folic acid may decrease the prevalence of PE, there is not enough data to support that higher amount of folic acid administration can reduce the severity of presentation's signs or ameliorate the laboratory data and the onset of PE.
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Affiliation(s)
- Azar Danesh Shahraki
- Department of Obstetrics and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R., Iran
| | - Nastaran Zamani Dehkordi
- Department of Obstetrics and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R., Iran
| | - Masoud Lotfizadeh
- Department of Community Health, Social Health Determinants Research Center, Shahrekord University of Medical Sciences, Shahrekord, I.R., Iran
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Hashemi M, Heshmat-Ghahdarijani K, Zarean E, Baktash F, Mortazavi ZS. Evaluation of the effect of high-dose folic acid on endothelial dysfunction in pre-eclamptic patients: A randomized clinical trial. J Res Med Sci 2016; 21:114. [PMID: 28255322 PMCID: PMC5331770 DOI: 10.4103/1735-1995.193505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/16/2016] [Accepted: 08/14/2016] [Indexed: 12/17/2022]
Abstract
Background: Pre-eclampsia as a hypertensive disorder of pregnancy complicates up to 5–10% of pregnancies worldwide. Endothelial dysfunction plays an important role in the pathogenesis of pre-eclampsia. In this study, we aim to evaluate the effect of high-dose folic acid on endothelial dysfunction in pre-eclamptic patients. Materials and Methods: In this triple-blinded randomized clinical trial, the enrolled patients were divided randomly into two groups. Folic acid 5.0 mg or placebo was taken daily by oral administration from the initiation of diagnosis until 2 months after delivery by the participants. Every patient's flow-mediated dilation (FMD) was evaluated at the beginning of the study and 2 months after delivery with the same experienced operator at the same period of time (3–5 p.m.) by high-resolution B-mode ultrasonography. Potential confounding variables were included in the independent samples t-test. t-test or Mann–Whitney U-test was used in the comparison of means between the intervention and placebo groups. To compare FMD in each group, before and after the intervention, paired t-test was used. Results: Mean value of FMD in intervention (9.64 ± 5.57) and control group (9.30 ± 4.25) has no significant difference before the consumption of drugs (P > 0.05). FMD in intervention group (13.72 ± 7.89) significantly increases after daily consumption of 5 mg folic acid in comparison with control group (10.02 ± 4.81) after daily consumption of placebo (P = 0.002). Conclusion: Increased mean of FMD in intervention group shows that this supplement can improve endothelial function and can be significantly affected by maternal blood pressure during pregnancy and some endothelium-dependent disease such as pre-eclampsia and its associated adverse outcomes.
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Affiliation(s)
- Mohammad Hashemi
- Department of Cardiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Elahe Zarean
- Department of Obstetrics-Gynecology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Forouz Baktash
- Department of Cardiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Sadat Mortazavi
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Hua X, Zhang J, Guo Y, Shen M, Gaudet L, Janoudi G, Walker M, Wen SW. Effect of folic acid supplementation during pregnancy on gestational hypertension/preeclampsia: A systematic review and meta-analysis. Hypertens Pregnancy 2016; 35:447-460. [PMID: 27315401 DOI: 10.1080/10641955.2016.1183673] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the effect of folic acid supplementation during pregnancy on the risk of gestational hypertension/preeclampsia. METHODS A systematic review and meta-analysis were conducted. Medline, Embase, Scopus, and the Web of Science were searched from inception to December 2014. RESULTS Out of 1224 potentially relevant studies, 13 studies met our inclusion criteria (2 randomized controlled trials (RCTs), 10 cohort studies, and 1 case-control study). The pooled relative risk (RR) and 95% confidence interval (CI) of the two RCTs were 0.62 (0.45-0.87) in the trial arm as compared with the placebo arm. The pooled RR was 0.92 (95% CI: 0.79-1.08) for nine cohort studies with available data on folic acid supplementation in pregnancy and gestational hypertension/preeclampsia. Pooled RR was 0.88 (95% CI: 0.76-1.02) for eight cohort studies with available data on folic acid supplementation and preeclampsia. CONCLUSION Whether folic acid supplementation in pregnancy can prevent the occurrence of gestational hypertension/preeclampsia remains uncertain.
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Affiliation(s)
- Xiaolin Hua
- a Department of Obstetrics , Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China.,b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada
| | - Jiewen Zhang
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada.,d Department of Obstetrics and Gynecology , Beijing Friendship Hospital, Capital Medical University , Beijing , China
| | - Yanfang Guo
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada
| | - Minxue Shen
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada.,e School of Public Health , Central South University , Changsha , China
| | - Laura Gaudet
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada
| | - Ghayath Janoudi
- f Canadian Agency for Drugs and Technologies in Health , Ottawa , Ontario , Canada
| | - Mark Walker
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada.,g School of Epidemiology, Public Health, and Preventive Medicine , University of Ottawa Faculty of Medicine , Ottawa , Ontario , Canada
| | - Shi Wu Wen
- b Department of Obstetrics and Gynecology, Faculty of Medicine , OMNI Research Group, University of Ottawa , Ottawa , Ontario , Canada.,c Clinical Epidemiology Program , Ottawa Hospital Research Institute , Ottawa , Ontario , Canada.,e School of Public Health , Central South University , Changsha , China.,g School of Epidemiology, Public Health, and Preventive Medicine , University of Ottawa Faculty of Medicine , Ottawa , Ontario , Canada
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27
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Moussa HN, Hosseini Nasab S, Haidar ZA, Blackwell SC, Sibai BM. Folic acid supplementation: what is new? Fetal, obstetric, long-term benefits and risks. Future Sci OA 2016; 2:FSO116. [PMID: 28031963 DOI: 10.4155/fsoa-2015-0015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/24/2016] [Indexed: 01/08/2023] Open
Abstract
The association between folic acid supplementation, prior to conception and/or during pregnancy and pregnancy outcomes, has been the subject of numerous studies. The worldwide recommendation of folic acid is at least 0.4 mg daily for all women of reproductive age, and 4–5 mg in high-risk women. In addition, evidence shows that folic acid supplementation could modulate other adverse pregnancy outcomes, specifically, in pregnancies complicated by seizure disorders, preeclampsia, anemia, fetal growth restriction and autism. This review summarizes the available national and international guidelines, concerning the indications and dosage of folic acid supplementation during pregnancy. In addition, it describes the potential preventive benefits of folic acid supplementation on multiple maternal and fetal outcomes, as well as potential risks.
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28
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Wen SW, Guo Y, Rodger M, White RR, Yang Q, Smith GN, Perkins SL, Walker MC. Folic Acid Supplementation in Pregnancy and the Risk of Pre-Eclampsia-A Cohort Study. PLoS One 2016; 11:e0149818. [PMID: 26901463 PMCID: PMC4764298 DOI: 10.1371/journal.pone.0149818] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 02/04/2016] [Indexed: 11/18/2022] Open
Abstract
This prospective cohort study designed to assess the effect of folic acid supplementation in pregnancy on the risk of preeclampsia (PE) took place in Ottawa, ON and Kingston, ON, Canada, from September 1, 2002 to August 31, 2008. Pregnant women, less than 20 weeks gestational age were recruited and delivered in the Ottawa region and the Kingston General Hospital. Demographic characteristics of the study participants and the patterns of supplementation of folic acid were described and occurrence of PE between women with folic acid supplementation during pregnancy and women without were compared. Multiple logistic regression was used in the estimation of the independent effect of supplementation of folic acid. Additional analyses assessing the effect of low RBC and serum folate and dose-response relationship were performed. Analyses were performed in all study participants, and then in high risk and low risk sub-groups, respectively. A total of 7,669 participants were included in the final analysis. Ninety five percent of the study participants were taking folic acid supplementation in early second trimester. The rate of PE was lower in the supplementation group than in the no supplementation group, and the difference was statistically significant in high risk women. Similar patterns of associations were observed in analysis by RBC and serum folate levels and in dose-response analysis. Folic acid supplementation in pregnancy may reduce PE risk in pregnant women, especially in those women with increased risk of developing PE.
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Affiliation(s)
- Shi Wu Wen
- OMNI Research Group, Department of Obstetrics and Gynecology, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology, Public Health, and Preventive Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- * E-mail:
| | - Yanfang Guo
- OMNI Research Group, Department of Obstetrics and Gynecology, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Marc Rodger
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology, Public Health, and Preventive Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- Division of Hematology, Department of Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
| | - Ruth Rennicks White
- OMNI Research Group, Department of Obstetrics and Gynecology, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Qiuying Yang
- Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Graeme N. Smith
- Queen’s Perinatal Research Unit, Kingston General Hospital, Kingston, Ontario, Canada
- Department of Obstetrics and Gynecology, Queen’s University School of Medicine, Kingston, Ontario, Canada
| | | | - Mark C. Walker
- OMNI Research Group, Department of Obstetrics and Gynecology, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- School of Epidemiology, Public Health, and Preventive Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
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29
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Brabin BJ, Gies S, Owens S, Claeys Y, D'Alessandro U, Tinto H, Brabin L. Perspectives on the design and methodology of periconceptional nutrient supplementation trials. Trials 2016; 17:58. [PMID: 26833080 PMCID: PMC4736099 DOI: 10.1186/s13063-015-1124-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 12/15/2015] [Indexed: 01/22/2023] Open
Abstract
Periconceptional supplementation could extend the period over which maternal and fetal nutrition is improved, but there are many challenges facing early-life intervention studies. Periconceptional trials differ from pregnancy supplementation trials, not only because of the very early or pre-gestational timing of nutrient exposure but also because they generate subsidiary information on participants who remain non-pregnant. The methodological challenges are more complex although, if well designed, they provide opportunities to evaluate concurrent hypotheses related to the health of non-pregnant women, especially nulliparous adolescents. This review examines the framework of published and ongoing randomised trial designs. Four cohorts typically arise from the periconceptional trial design--two of which are non-pregnant and two are pregnant--and this structure provides assessment options related to pre-pregnant, maternal, pregnancy and fetal outcomes. Conceptually the initial decision for single or micronutrient intervention is central--as is the choice of dosage and content--in order to establish a comparative framework across trials, improve standardisation, and facilitate interpretation of mechanistic hypotheses. Other trial features considered in the review include: measurement options for baseline and outcome assessments; adherence to long-term supplementation; sample size considerations in relation to duration of nutrient supplementation; cohort size for non-pregnant and pregnant cohorts as the latter is influenced by parity selection; integrating qualitative studies and data management issues. Emphasis is given to low resource settings where high infection rates and the possibility of nutrient-infection interactions may require appropriate safety monitoring. The focus is on pragmatic issues that may help investigators planning a periconceptional trial.
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Affiliation(s)
- Bernard J Brabin
- Clinical Division, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L35QA, UK.
- Global Child Health Group, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
| | - Sabine Gies
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
| | - Stephen Owens
- Northumbria Healthcare NHS Foundation Trust, North Shields, NE29 8NH, UK.
| | - Yves Claeys
- Clinical Sciences Department, Institute of Tropical Medicine, Antwerp, Belgium.
| | - Umberto D'Alessandro
- Medical Research Council Unit (MRC), Fajara, The Gambia.
- London School of Hygiene and Tropical Medicine, London, UK.
- Institute of Tropical Medicine, Antwerp, Belgium.
| | - Halidou Tinto
- Clinical Research Unit of Nanoro (URCN/IRSS), Nanoro, Burkina Faso.
| | - Loretta Brabin
- Institute of Cancer Sciences, University of Manchester, Manchester, UK.
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Owens S, Gulati R, Fulford AJ, Sosseh F, Denison FC, Brabin BJ, Prentice AM. Periconceptional multiple-micronutrient supplementation and placental function in rural Gambian women: a double-blind, randomized, placebo-controlled trial. Am J Clin Nutr 2015; 102:1450-9. [PMID: 26561613 PMCID: PMC4658455 DOI: 10.3945/ajcn.113.072413] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 09/10/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Maternal micronutrient deficiencies are commonly associated with clinical indicators of placental dysfunction. OBJECTIVE We tested the hypothesis that periconceptional multiple-micronutrient supplementation (MMS) affects placental function. DESIGN We conducted a double-blind, randomized, placebo-controlled trial of MMS in 17- to 45-y-old Gambian women who were menstruating regularly and within the previous 3 mo. Eligible subjects were pre-randomly assigned to supplementation with the UNICEF/WHO/United Nations University multiple micronutrient preparation (UNIMMAP) or placebo on recruitment and until they reached their first antenatal check-up or for 1 y if they failed to conceive. Primary outcome measures were midgestational indexes of utero-placental vascular-endothelial function [ratio of plasminogen-activator inhibitor (PAI) 1 to PAI-2 and mean uterine-artery resistance index (UtARI)] and placental active transport capacity at delivery [fetal to maternal measles antibody (MMA) ratio]. RESULTS We recruited 1156 women who yielded 415 pregnancies, of which 376 met all of the inclusion criteria. With adjustment for gestational age at sampling, there were no differences in PAI-1 to PAI-2 or MMA ratios between trial arms, but there was a 0.02-unit reduction in UtARI between 18 and 32 wk of gestation (95% CI: -0.03, -0.00; P = 0.040) in women taking UNIMMAP. CONCLUSIONS Placental vascular function was modifiable by periconceptional micronutrient supplementation. However, the effect was small and supplementation did not further affect other variables of placental function. This trial was registered at www.controlled-trials.com as ISRCTN 13687662.
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Affiliation(s)
- Stephen Owens
- Children's Unit, Northumbria Healthcare NHS Foundation Trust, North Shields, United Kingdom; Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom, and MRC Keneba, Fajara, The Gambia;
| | - Ruchi Gulati
- Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom, and MRC Keneba, Fajara, The Gambia
| | - Anthony J Fulford
- Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom, and MRC Keneba, Fajara, The Gambia
| | - Fatou Sosseh
- Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom, and MRC Keneba, Fajara, The Gambia
| | - Fiona C Denison
- MRC Centre for Reproductive Health, The Queen's Medical Research Institute, Edinburgh, United Kingdom; and
| | - Bernard J Brabin
- Child and Reproductive Health Group, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Andrew M Prentice
- Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom, and MRC Keneba, Fajara, The Gambia
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31
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Yang X, Chen H, Du Y, Wang S, Wang Z. Periconceptional folic acid fortification for the risk of gestational hypertension and pre-eclampsia: a meta-analysis of prospective studies. Matern Child Nutr 2015; 12:669-79. [PMID: 26260406 DOI: 10.1111/mcn.12209] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Published literatures report controversial results about the association of folic acid-containing multivitamins with gestational hypertension and pre-eclampsia. A comprehensive search was performed to identify related prospective studies to assess the effect of folic acid fortification on gestational hypertension and pre-eclampsia. The Q test and I(2) statistic were used to examine between-study heterogeneity. Fixed or random effects models were selected based on study heterogeneity. A funnel plot and modified Egger linear regression test were used to estimate publication bias. Eleven studies conformed to the criteria. Pooled results indicated that folic acid fortification alone was not associated with the occurrence of gestational hypertension [relative risk (RR) = 1.03, 95% confidence interval (CI): 0.98-1.09, P = 0.267] and pre-eclampsia (RR = 0.99, 95% CI: 0.90-1.08, P = 0.738). However, supplementation of multivitamins containing folic acid could prevent gestational hypertension (RR = 0.57, 95% CI: 0.43-0.76, P < 0.001) and pre-eclampsia (RR = 0.64, 95% CI: 0.48-0.84, P = 0.001). The difference between folic acid fortification alone and multivitamins containing folic acid was significant. This meta-analysis suggests that periconceptional multivitamin supplementation with appropriate dose, not folic acid alone, is an appropriate recommendation for pregnant women. The effect should be further confirmed by conducting large-scale randomised controlled trials.
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Affiliation(s)
- Xiaorong Yang
- Department of Epidemiology and Biostatistics, Shandong University, Jinan, Shandong, China
| | - Hui Chen
- Department of Epidemiology and Biostatistics, Shandong University, Jinan, Shandong, China
| | - Yihui Du
- Department of Epidemiology and Biostatistics, Shandong University, Jinan, Shandong, China
| | - Shuting Wang
- Department of Epidemiology and Biostatistics, Shandong University, Jinan, Shandong, China
| | - Zhiping Wang
- Department of Epidemiology and Biostatistics, Shandong University, Jinan, Shandong, China.
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Agrawal S, Fledderjohann J, Vellakkal S, Stuckler D. Adequately diversified dietary intake and iron and folic acid supplementation during pregnancy is associated with reduced occurrence of symptoms suggestive of pre-eclampsia or eclampsia in Indian women. PLoS One 2015; 10:e0119120. [PMID: 25785774 DOI: 10.1371/journal.pone.0119120] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 01/26/2015] [Indexed: 12/23/2022] Open
Abstract
Background/Objective Pre-eclampsia or Eclampsia (PE or E) accounts for 25% of cases of maternal mortality worldwide. There is some evidence of a link to dietary factors, but few studies have explored this association in developing countries, where the majority of the burden falls. We examined the association between adequately diversified dietary intake, iron and folic acid supplementation during pregnancy and symptoms suggestive of PE or E in Indian women. Methods Cross-sectional data from India’s third National Family Health Survey (NFHS-3, 2005-06) was used for this study. Self-reported symptoms suggestive of PE or E during pregnancy were obtained from 39,657 women aged 15-49 years who had had a live birth in the five years preceding the survey. Multivariable logistic regression analysis was used to estimate the association between adequately diversified dietary intake, iron and folic acid supplementation during pregnancy and symptoms suggestive of PE or E after adjusting for maternal, health and lifestyle factors, and socio-demographic characteristics of the mother. Results In their most recent pregnancy, 1.2% (n=456) of the study sample experienced symptoms suggestive of PE or E. Mothers who consumed an adequately diversified diet were 34% less likely (OR: 0.66; 95% CI: 0.51-0.87) to report PE or E symptoms than mothers with inadequately diversified dietary intake. The likelihood of reporting PE or E symptoms was also 36% lower (OR: 0.64; 95% CI: 0.47-0.88) among those mothers who consumed iron and folic acid supplementation for at least 90 days during their last pregnancy. As a sensitivity analysis, we stratified our models sequentially by education, wealth, antenatal care visits, birth interval, and parity. Our results remained largely unchanged: both adequately diversified dietary intake and iron and folic acid supplementation during pregnancy were associated with a reduced occurrence of PE or E symptoms. Conclusion Having a adequately diversified dietary intake and iron and folic acid supplementation in pregnancy was associated with a reduced occurrence of symptoms suggestive of PE or E in Indian women.
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Hodgetts VA, Morris RK, Francis A, Gardosi J, Ismail KM. Effectiveness of folic acid supplementation in pregnancy on reducing the risk of small-for-gestational age neonates: a population study, systematic review and meta-analysis. BJOG 2014; 122:478-90. [PMID: 25424556 DOI: 10.1111/1471-0528.13202] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2014] [Indexed: 02/01/2023]
Abstract
OBJECTIVES To assess the effect of timing of folic acid (FA) supplementation during pregnancy on the risk of the neonate being small for gestational age (SGA). DESIGN A population database study and a systematic review with meta-analysis including the results of this population study. SETTING AND DATA SOURCES A UK regional database was used for the population study and an electronic literature search (from inception until August 2013) for the systematic review. PARTICIPANTS AND INCLUDED STUDIES Singleton live births with no known congenital anomalies; 111,736 in population study and 188,796 in systematic review. OUTCOME MEASURES, DATA EXTRACTION AND ANALYSIS The main outcome was SGA based on customised birthweight centile. Associations are presented as odds ratios (OR) and adjusted odds ratios (aOR), adjusted for maternal and pregnancy-related characteristics. RESULTS Of 108,525 pregnancies with information about FA supplementation, 92,133 (84.9%) had taken FA during pregnancy. Time of commencement of supplementation was recorded in 39,416 pregnancies, of which FA was commenced before conception in 10,036, (25.5%) cases. Preconception commencement of FA supplementation was associated with reduced risk of SGA <10th centile (aOR 0.80, 95% CI 0.71-0.90, P < 0.01) and SGA <5th centile (aOR 0.78, 95% CI 0.66-0.91, P < 0.01). This result was reproduced when the data were pooled with other studies in the systematic review, showing a significant reduction in SGA (<5th centile) births with preconception commencement of FA (aOR 0.75, 95% CI 0.61-0.92, P < 0.006). In contrast, postconception folate had no significant effect on SGA rates. CONCLUSION Supplementation with FA significantly reduces the risk of SGA at birth but only if commenced preconceptually independent of other risk factors. SYSTEMATIC REVIEW REGISTRATION This systematic review was prospectively registered with PROSPERO number CRD42013004895.
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Affiliation(s)
- V A Hodgetts
- Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK
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Bortolus R, Blom F, Filippini F, van Poppel MNM, Leoncini E, de Smit DJ, Benetollo PP, Cornel MC, de Walle HEK, Mastroiacovo P. Prevention of congenital malformations and other adverse pregnancy outcomes with 4.0 mg of folic acid: community-based randomized clinical trial in Italy and the Netherlands. BMC Pregnancy Childbirth 2014; 14:166. [PMID: 24884885 PMCID: PMC4045958 DOI: 10.1186/1471-2393-14-166] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 04/25/2014] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND In 2010 a Cochrane review confirmed that folic acid (FA) supplementation prevents the first- and second-time occurrence of neural tube defects (NTDs). At present some evidence from observational studies supports the hypothesis that FA supplementation can reduce the risk of all congenital malformations (CMs) or the risk of a specific and selected group of them, namely cardiac defects and oral clefts. Furthermore, the effects on the prevention of prematurity, foetal growth retardation and pre-eclampsia are unclear.Although the most common recommendation is to take 0.4 mg/day, the problem of the most appropriate dose of FA is still open.The aim of this project is to assess the effect a higher dose of peri-conceptional FA supplementation on reducing the occurrence of all CMs. Other aims include the promotion of pre-conceptional counselling, comparing rates of selected CMs, miscarriage, pre-eclampsia, preterm birth, small for gestational age, abruptio placentae. METHODS/DESIGN This project is a joint effort by research groups in Italy and the Netherlands. Women of childbearing age, who intend to become pregnant within 12 months are eligible for the studies. Women are randomly assigned to receive 4 mg of FA (treatment in study) or 0.4 mg of FA (referent treatment) daily. Information on pregnancy outcomes are derived from women-and-physician information.We foresee to analyze the data considering all the adverse outcomes of pregnancy taken together in a global end point (e.g.: CMs, miscarriage, pre-eclampsia, preterm birth, small for gestational age). A total of about 1,000 pregnancies need to be evaluated to detect an absolute reduction of the frequency of 8%. Since the sample size needed for studying outcomes separately is large, this project also promotes an international prospective meta-analysis. DISCUSSION The rationale of these randomized clinical trials (RCTs) is the hypothesis that a higher intake of FA is related to a higher risk reduction of NTDs, other CMs and other adverse pregnancy outcomes. Our hope is that these trials will act as catalysers, and lead to other large RCTs studying the effects of this supplementation on CMs and other infant and maternal outcomes. TRIAL REGISTRATION Italian trial: ClinicalTrials.gov Identifier: NCT01244347.Dutch trial: Dutch Trial Register ID: NTR3161.
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Affiliation(s)
- Renata Bortolus
- Office for Research Promotion, Department of the Hospital Management and Pharmacy, Verona University Hospital, P.le A. Stefani, 1-37126 Verona, Italy
| | - Fenneke Blom
- Community Genetics, Department of Clinical Genetics, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - Francesca Filippini
- Office for Research Promotion, Department of the Hospital Management and Pharmacy, Verona University Hospital, P.le A. Stefani, 1-37126 Verona, Italy
| | - Mireille NM van Poppel
- Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - Emanuele Leoncini
- Alessandra Lisi International Centre on Birth Defects and Prematurity-ICBD, WHO Collaborating Centre, Rome, Italy
| | | | | | - Martina C Cornel
- Community Genetics, Department of Clinical Genetics, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - Hermien EK de Walle
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Pierpaolo Mastroiacovo
- Alessandra Lisi International Centre on Birth Defects and Prematurity-ICBD, WHO Collaborating Centre, Rome, Italy
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Bouthoorn SH, van Lenthe FJ, Gaillard R, Hofman A, Steegers EA, Jaddoe VW, Raat H. Socioeconomic inequalities in placental vascular resistance: a prospective cohort study. Fertil Steril 2014; 101:1367-1374.e4. [DOI: 10.1016/j.fertnstert.2014.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 02/03/2014] [Accepted: 02/03/2014] [Indexed: 11/20/2022]
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Mantovani E, Filippini F, Bortolus R, Franchi M. Folic acid supplementation and preterm birth: results from observational studies. Biomed Res Int 2014; 2014:481914. [PMID: 24724083 DOI: 10.1155/2014/481914] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/01/2014] [Accepted: 01/01/2014] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Folic acid (FA) supplementation is recommended worldwide in the periconceptional period for the prevention of neural tube defects. Due to its involvement in a number of cellular processes, its role in other pregnancy outcomes such as miscarriage, recurrent miscarriage, low birth weight, preterm birth (PTB), preeclampsia, abruptio placentae, and stillbirth has been investigated. PTB is a leading cause of perinatal mortality and morbidity; therefore its association with FA supplementation is of major interest. The analysis of a small number of randomized clinical trials (RCTs) has not found a beneficial role of FA in reducing the rate of PTBs. AIM OF THE STUDY The aim of this review was to examine the results from recent observational studies about the effect of FA supplementation on PTB. MATERIALS AND METHODS We carried out a search on Medline and by manual search of the observational studies from 2009 onwards that analyzed the rate of PTB in patients who received supplementation with FA before and/or throughout pregnancy. RESULTS The results from recent observational studies suggest a slight reduction of PTBs that is not consistent with the results from RCTs. Further research is needed to better understand the role of FA supplementation before and during pregnancy in PTB.
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Wen SW, Champagne J, Rennicks White R, Coyle D, Fraser W, Smith G, Fergusson D, Walker MC. Effect of folic acid supplementation in pregnancy on preeclampsia: the folic acid clinical trial study. J Pregnancy 2013; 2013:294312. [PMID: 24349782 DOI: 10.1155/2013/294312] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 07/08/2013] [Indexed: 12/31/2022] Open
Abstract
Preeclampsia (PE) is hypertension with proteinuria that develops during pregnancy and affects at least 5% of pregnancies. The Effect of Folic Acid Supplementation in Pregnancy on Preeclampsia: the Folic Acid Clinical Trial (FACT) aims to recruit 3,656 high risk women to evaluate a new prevention strategy for PE: supplementation of folic acid throughout pregnancy. Pregnant women with increased risk of developing PE presenting to a trial participating center between 80/7 and 166/7 weeks of gestation are randomized in a 1 : 1 ratio to folic acid 4.0 mg or placebo after written consent is obtained. Intent-to-treat population will be analyzed. The FACT study was funded by the Canadian Institutes of Health Research in 2009, and regulatory approval from Health Canada was obtained in 2010. A web-based randomization system and electronic data collection system provide the platform for participating centers to randomize their eligible participants and enter data in real time. To date we have twenty participating Canadian centers, of which eighteen are actively recruiting, and seven participating Australian centers, of which two are actively recruiting. Recruitment in Argentina, UK, Netherlands, Brazil, West Indies, and United States is expected to begin by the second or third quarter of 2013. This trial is registered with NCT01355159.
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Bouwland-Both MI, Steegers EA, Lindemans J, Russcher H, Hofman A, Geurts-Moespot AJ, Sweep FC, Jaddoe VW, Steegers-Theunissen RP. Maternal soluble fms-like tyrosine kinase-1, placental growth factor, plasminogen activator inhibitor-2, and folate concentrations and early fetal size: the Generation R study. Am J Obstet Gynecol 2013; 209:121.e1-11. [PMID: 23583216 DOI: 10.1016/j.ajog.2013.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/22/2013] [Accepted: 04/04/2013] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Fetal growth is dependent on adequate development of the placenta. Impaired angiogenesis and vasculogenesis in early pregnancy compromises placental and embryonic development. The proteins soluble fms-like tyrosine kinase (sFlt)-1, placental growth factor (PlGF), and plasminogen activator inhibitor (PAI)-2, and the B vitamin folate are determinants of placental development. This study aims to identify associations between these maternal biomarkers and early fetal size. STUDY DESIGN From a prospective birth cohort study in The Netherlands, 1491 pregnant women were selected for this study. At a mean gestational age (GA) of 12.4 weeks (SD 0.8) maternal venous blood samples were obtained to determine the concentrations of sFlt-1, PlGF, PAI-2, and folate. Early fetal size was assessed with measurement of the crown-to-rump length (CRL) at a mean of 12.4 weeks' GA (SD 0.8). Analyses were performed using multivariable linear regression analyses with the biomarkers (continuous, quintiles) as regressors and CRL as main outcome measure. RESULTS Linear trend analysis showed positive associations between maternal sFlt-1 (P < .001), PlGF (P = .042), PAI-2 (P < .001), and folate (P = .039) and CRL. These associations were independent of GA, maternal age, height, body mass index, ethnicity, fetal sex, parity, educational level, smoking, and folic acid supplement use (folate not adjusted). CONCLUSION sFlt-1, PlGF, PAI-2, and folate are positively associated with first-trimester fetal size.
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Gaillard R, Arends LR, Steegers EAP, Hofman A, Jaddoe VWV. Second- and third-trimester placental hemodynamics and the risks of pregnancy complications: the Generation R Study. Am J Epidemiol 2013; 177:743-54. [PMID: 23479346 DOI: 10.1093/aje/kws296] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Characteristics of the uterine and umbilical artery blood flow patterns are indirect measures of uteroplacental circulation. We examined whether uterine and umbilical artery resistance indices are influenced by maternal demographic and lifestyle characteristics, track from the second trimester to the third, and are associated with the risk of pregnancy complications. This analysis was embedded among 7,660 pregnant women in the Generation R Study (Rotterdam, the Netherlands, 2001-2005). Placental resistance indices were assessed in the second and third trimesters. Information about pregnancy outcomes was obtained from medical records. Maternal characteristics affected second- and third-trimester placental resistance indices. Correlation coefficients for correlation between the second and third trimesters were 0.50 and 0.32 for uterine artery resistance index and umbilical artery pulsatility index, respectively. Higher placental resistance indices in the second and third trimesters and persistence in the highest tertile of uterine artery resistance index from the second trimester to the third were associated with the risks of preeclampsia, preterm birth, and small size for gestational age at birth (all P's < 0.05). Our study shows that placental resistance indices are influenced by maternal demographic and lifestyle characteristics and track moderately from the second trimester to the third. Increased placental resistance indices in the second and third trimesters are associated with increased risks of adverse pregnancy outcomes.
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Affiliation(s)
- Romy Gaillard
- Generation R Study Group, Erasmus Medical Center, Rotterdam, The Netherlands
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Coolman M, Timmermans S, de Groot CJ, Russcher H, Lindemans J, Hofman A, Geurts-Moespot AJ, Sweep FC, Jaddoe VV, Steegers EA. Angiogenic and fibrinolytic factors in blood during the first half of pregnancy and adverse pregnancy outcomes. Obstet Gynecol 2012; 119:1190-200. [PMID: 22617584 DOI: 10.1097/AOG.0b013e318256187f] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To estimate whether the imbalance of angiogenic factors (soluble fms-like tyrosine kinase-1, placental growth factor) and fibrinolytic factors (plasminogen activator inhibitor-2 [PAI-2]) might affect placentation in early pregnancy. METHODS We studied the associations of maternal soluble fms-like tyrosine kinase-1, placental growth factor, and PAI-2 concentrations in the first trimester (before 18 weeks of gestation) and soluble fms-like tyrosine kinase-1 and placental growth factor concentrations in the second trimester (18-25 weeks of gestation) with placental function and adverse pregnancy outcomes. This study was embedded in a population-based prospective cohort study. Data were used from 7,519 women. Biomarker concentrations were divided into deciles and evaluated in multivariable linear and logistic regression models. RESULTS First-trimester high soluble fms-like tyrosine kinase-1 was associated with a 5.2% lower uterine artery index in the second-trimester and a 1.6% higher birth weight (55 g, confidence interval [CI] 15-95). Neither in the first nor in the second trimester were soluble fms-like tyrosine kinase-1 concentrations significantly associated with preeclampsia. First-trimester low placental growth factor was associated with a 6.1% higher uterine artery index and a 3.4% lower birth weight (-115 g, CI -157 to -74). First-trimester low placental growth factor was associated with fetal growth restriction (odds ratio [OR] 2.62, CI 1.68-4.08) and preeclampsia (OR 2.46, CI 1.49-4.08). First-trimester low PAI-2 was associated with a 1.9% higher uterine artery index and a 2.7% lower birth weight (-94 g, CI -136 to -51). First-trimester low PAI-2 was associated with a higher risk of fetal growth restriction (OR 2.22, CI 1.39-3.55). CONCLUSION First-half-of-pregnancy concentrations of soluble fms-like tyrosine kinase-1, placental growth factor, and PAI-2 are associated with uteroplacental vascular resistance, placental weight, and birth weight. Moreover, first-trimester placental growth factor and PAI-2 are associated with an increased risk of adverse pregnancy outcomes. LEVEL OF EVIDENCE II.
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Rurangirwa AA, Gaillard R, Steegers EA, Hofman A, Jaddoe VW. Hemodynamic adaptations in different trimesters among nulliparous and multiparous pregnant women; the Generation R study. Am J Hypertens 2012; 25:892-9. [PMID: 22647784 DOI: 10.1038/ajh.2012.57] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND It has been suggested that maternal vascular adaptations during pregnancy differ between nulliparous and multiparous women. Therefore, we examined the associations of parity with blood pressure and hemodynamic placental function during pregnancy and risks of gestational hypertensive disorders. METHODS The study was embedded in a population-based prospective cohort study among 8,377 pregnant women. Information about parity and gravidity was obtained at enrollment. Blood pressure was repeatedly measured in each trimester and mean pulsatility and resistance indexes of uterine artery were measured in second and third trimesters. Information on gestational hypertension and preeclampsia was available from medical records. RESULTS As compared with nulliparous women, multiparous women had a lower systolic and diastolic blood pressure in each trimester of pregnancy and a slightly higher second and third trimester uterine artery resistance and pulsatility indexes (all P values < 0.05), but a lower risk of third trimester uterine artery notching (odds ratio (OR) 0.67 (95% confidence interval (CI):0.53, 0.84)). The risks of gestational hypertension and preeclampsia were lower among multiparous women as compared with nulliparous women (OR 0.32 (95% CI: 0.24, 0.43) and OR 0.24 (95% CI: 0.16, 0.37), respectively). Among multiparous women only, we did not observe associations of parity with hemodynamic parameters. CONCLUSIONS Nulliparous pregnant women have higher blood pressure levels throughout pregnancy and higher risks of notching and gestational hypertensive disorders. The first pregnancy might be a major risk factor for maternal hemodynamic maladaptations and vascular complications. Further studies are needed to explore the underlying mechanisms and consequences for fetal growth and development.
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Arranz CT, Costa MÁ, Tomat AL. Orígenes fetales de las enfermedades cardiovasculares en la vida adulta por deficiencia de micronutrientes. Clínica e Investigación en Arteriosclerosis 2012. [DOI: 10.1016/j.arteri.2012.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Burris HH, Rifas-Shiman SL, Baccarelli A, Tarantini L, Boeke CE, Kleinman K, Litonjua AA, Rich-Edwards JW, Gillman MW. Associations of LINE-1 DNA Methylation with Preterm Birth in a Prospective Cohort Study. J Dev Orig Health Dis 2012; 3:173-81. [PMID: 22720130 DOI: 10.1017/s2040174412000104] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Preterm birth affects over 12% of all infants born in the US yet the biology of early delivery remains unclear, including whether epigenetic mechanisms are involved. We examined associations of maternal and umbilical cord blood long interspersed nuclear element-1 (LINE-1) DNA methylation with length of gestation and odds of preterm birth in singleton pregnancies in Project Viva. In white blood cells from maternal blood during 1(st) trimester (n=914) and 2(nd) trimester (n=922), and from venous cord blood at delivery (n=557), we measured LINE-1 by pyrosequencing (expressed as %5 methyl cytosines within the LINE-1 region analyzed [%5mC]). We ran linear regression models to analyze differences in gestation length, and logistic models for odds of preterm birth (<37 v. ≥37 weeks gestation), across quartiles of LINE-1. Mean(SD) LINE-1 levels were 84.3(0.6), 84.5(0.4), and 84.6(0.7) %5mC for 1(st) trimester, 2(nd) trimester and cord blood, respectively. Mean(SD) gestational age was 39.5(1.8) weeks, and 6.5% of infants were born preterm. After adjustment for maternal age, race/ethnicity, BMI, education, smoking status, and fetal sex, women with the highest vs. lowest quartile of 1(st) trimester LINE-1 had longer gestations (0.45 weeks [95% CI 0.12, 0.78]) and lower odds of preterm birth (OR 0.40 [0.17, 0.94]), whereas associations with cord blood LINE-1 were in the opposite direction (-0.45 weeks, -0.83, -0.08) and (OR 4.55 [1.18, 17.5]). In conclusion, higher early pregnancy LINE-1 predicts lower risk of preterm birth. In contrast, preterm birth is associated with lower LINE-1 in cord blood.
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Bakker R, Timmermans S, Steegers EAP, Hofman A, Jaddoe VWV. Folic acid supplements modify the adverse effects of maternal smoking on fetal growth and neonatal complications. J Nutr 2011; 141:2172-9. [PMID: 22031658 DOI: 10.3945/jn.111.142976] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Maternal smoking during pregnancy leads to increased risks of neonatal complications. The use of folic acid supplements might reduce the adverse effects of smoking. We examined whether folic acid supplement use modifies the associations of maternal smoking with first trimester plasma homocysteine concentrations, fetal growth characteristics, and risks of neonatal complications. The associations were studied in 6294 mothers participating in a prospective population-based cohort study in The Netherlands. Main outcomes measurements were first trimester plasma homocysteine concentrations, fetal growth characteristics, and neonatal complications, including preterm birth, low birth weight, and small-size-for-gestational-age. Continued maternal smoking was associated with higher first trimester plasma homocysteine concentrations [difference 0.52 μmol/L (95% range = 0.20, 2.14)], lower third trimester fetal weight (difference -44 g (95% CI = -57, -31)], and birth weight [difference -148 g (95% CI = -179, -118)]. There were significant interactions between maternal smoking and folic acid supplements on all outcome measures (all P-interaction < 0.040). Among mothers who continued smoking during pregnancy, those who did not use folic acid supplements had the highest risk of delivering a child with low birth weight [OR = 3.45 (95% CI = 1.25, 9.54)] compared to those who did use periconceptional folic acid supplements. No significant effects were observed for the risks of preterm birth and small-size-for-gestational-age at birth. Our results suggest that some adverse effects of maternal smoking on fetal growth and neonatal outcomes might be reduced by the use of folic acid supplements. The observed interaction seems to be mainly driven by smoking in the first trimester only.
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Affiliation(s)
- Rachel Bakker
- The Generation R Study Group, Erasmus Medical Center, Rotterdam, The Netherlands
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Timmermans S, Steegers-Theunissen RP, Vujkovic M, Bakker R, den Breeijen H, Raat H, Russcher H, Lindemans J, Hofman A, Jaddoe VW, Steegers EA. Major dietary patterns and blood pressure patterns during pregnancy: the Generation R Study. Am J Obstet Gynecol 2011; 205:337.e1-12. [PMID: 21855845 DOI: 10.1016/j.ajog.2011.05.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 03/07/2011] [Accepted: 05/05/2011] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We sought to evaluate associations between dietary patterns and systolic blood pressure (SBP) and diastolic blood pressure during pregnancy. STUDY DESIGN This was a prospective study of 3187 pregnant women. Participants completed a food-frequency questionnaire in early pregnancy. The Mediterranean dietary pattern, comprising high intake of vegetables, vegetable oils, pasta, fish, and legumes, and the Traditional dietary pattern, comprising high intake of meat and potatoes, were identified using factor analysis. RESULTS A higher SBP was observed among mothers with high Traditional pattern adherence. Low adherence to the Mediterranean pattern was also associated with higher SBP but only in early and mid pregnancy. A higher diastolic blood pressure throughout pregnancy was observed in mothers with high adherence to the Traditional pattern and low adherence to the Mediterranean pattern. These effect estimates were most pronounced in mid pregnancy. CONCLUSION Low adherence to a Mediterranean and high adherence to a Traditional dietary pattern is associated with a higher blood pressure in pregnancy.
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Williams PJ, Bulmer JN, Innes BA, Broughton Pipkin F. Possible Roles for Folic Acid in the Regulation of Trophoblast Invasion and Placental Development in Normal Early Human Pregnancy1. Biol Reprod 2011; 84:1148-53. [DOI: 10.1095/biolreprod.110.088351] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Jaddoe VWV, van Duijn CM, van der Heijden AJ, Mackenbach JP, Moll HA, Steegers EAP, Tiemeier H, Uitterlinden AG, Verhulst FC, Hofman A. The Generation R Study: design and cohort update 2010. Eur J Epidemiol 2010; 25:823-41. [PMID: 20967563 PMCID: PMC2991548 DOI: 10.1007/s10654-010-9516-7] [Citation(s) in RCA: 196] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2010] [Accepted: 09/27/2010] [Indexed: 01/09/2023]
Abstract
The Generation R Study is a population-based prospective cohort study from fetal life until young adulthood. The study is designed to identify early environmental and genetic causes of normal and abnormal growth, development and health during fetal life, childhood and adulthood. The study focuses on four primary areas of research: (1) growth and physical development; (2) behavioural and cognitive development; (3) diseases in childhood; and (4) health and healthcare for pregnant women and children. In total, 9,778 mothers with a delivery date from April 2002 until January 2006 were enrolled in the study. General follow-up rates until the age of 4 years exceed 75%. Data collection in mothers, fathers and preschool children included questionnaires, detailed physical and ultrasound examinations, behavioural observations, and biological samples. A genome wide association screen is available in the participating children. Regular detailed hands on assessment are performed from the age of 5 years onwards. Eventually, results forthcoming from the Generation R Study have to contribute to the development of strategies for optimizing health and healthcare for pregnant women and children.
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Affiliation(s)
- Vincent W V Jaddoe
- The Generation R Study Group (AE006), Erasmus Medical Center, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
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