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Whatley EG, Truong TT, Harvey AJ, Gardner DK. Preimplantation embryo exposure to ketone bodies exerts sex-specific effects on mouse fetal and placental transcriptomes. Reprod Biomed Online 2023; 47:103320. [PMID: 37748369 DOI: 10.1016/j.rbmo.2023.103320] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/07/2023] [Accepted: 07/25/2023] [Indexed: 09/27/2023]
Abstract
RESEARCH QUESTION Does in vitro exposure of preimplantation mouse embryos to the ketone bodies β-hydroxybutyrate (βOHB) and acetoacetate (AcAc) impact post-transfer fetal and placental gene expression? DESIGN Blastocysts cultured in vitro with or without 2 mmol/l βOHB alone ('βOHB') or combined with 0.8 mmol/l AcAc ('Keto') underwent embryo transfer. Transcriptional profiles of sexed placenta, liver and brain at gestational day 14.5 were examined via RNA sequencing and DAVID functional analysis. RESULTS A sexually dimorphic response to in vitro ketone exposure was observed. Both βOHB and Keto exposure down-regulated genes related to oxidative phosphorylation specifically in female liver. βOHB down-regulated female placental steroid biosynthetic processes, while Keto treatment up-regulated genes relevant to blood vessel formation and cell migration in male placenta. Brain transcriptomes were minimally affected. X-linked genes and chromatin modifiers were identified as differentially expressed in both liver and placenta, alluding to a sex-specific regulatory mechanism. CONCLUSIONS Transient preimplantation ketone exposure perturbs sex-specific fetal liver and placental gene expression, demonstrating a developmental programming effect that warrants future investigation of the postnatal metabolic health of male and female offspring.
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Affiliation(s)
- Emma G Whatley
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia; Melbourne IVF, East Melbourne, VIC 3002, Australia
| | - Thi T Truong
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Alexandra J Harvey
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia; Melbourne IVF, East Melbourne, VIC 3002, Australia
| | - David K Gardner
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia; Melbourne IVF, East Melbourne, VIC 3002, Australia.
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2
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Okubo H, Nakayama SF. Periconceptional diet quality and its relation to blood heavy metal concentrations among pregnant women: The Japan environment and Children's study. Environ Res 2023; 225:115649. [PMID: 36894116 DOI: 10.1016/j.envres.2023.115649] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Diets contain toxic chemical contaminants as well as essential nutrients, both of which influence the intrauterine environment for foetal growth. However, whether a high-quality diet that is nutritionally healthy also results in lower exposure to chemical contaminants is unknown. OBJECTIVE We examined associations between periconceptional maternal diet quality and circulating concentrations of heavy metals during pregnancy. DESIGN Dietary intake over the year prior to the first trimester of pregnancy was assessed using a validated, self-administered food frequency questionnaire among 81,104 pregnant Japanese women who participated in the Japan Environment and Children's Study. Overall diet quality was determined using the Balanced Diet Score (BDS) based on the Japanese Food Guide Spinning Top, the Healthy Eating Index-2015 (HEI-2015), the Dietary Approaches to Stop Hypertension (DASH) score and the Mediterranean diet score (MDS). We measured whole-blood concentrations of mercury (Hg), lead (Pb) and cadmium (Cd) during the second or third trimester of pregnancy. RESULTS After controlling for confounders, all diet quality scores were positively associated with blood Hg concentrations. By contrast, higher BDS, HEI-2015 and DASH scores were associated with lower concentrations of Pb and Cd. Although the MDS was positively associated with concentrations of Pb and Cd, when dairy products were classified as a beneficial (rather than detrimental) food component, these associations were attenuated. CONCLUSION A high-quality diet may reduce exposure to Pb and Cd but not Hg. Further studies are required to determine the optimal balance between mercury exposure risk and nutritional benefits of high-quality diets prior to pregnancy.
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Affiliation(s)
- Hitomi Okubo
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, Ibaraki, Japan; Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.
| | - Shoji F Nakayama
- Japan Environment and Children's Study Programme Office, National Institute for Environmental Studies, Ibaraki, Japan.
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3
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Venkatesh KK, Powe CE, Buschur E, Wu J, Landon MB, Gabbe S, Gandhi K, Grobman WA, Fareed N. Disparities in Continuous Glucose Monitoring Use Among Women of Reproductive Age with Type 1 Diabetes in the T1D Exchange. Diabetes Technol Ther 2023; 25:201-205. [PMID: 36753706 PMCID: PMC9983140 DOI: 10.1089/dia.2022.0412] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We identified characteristics associated with continuous glucose monitoring (CGM) use in women of reproductive age with type 1 diabetes (T1D) in the T1D Exchange clinic registry from 2015 to 2018. Among 6643 assessed women, the frequency of CGM increased from 2015 to 2018 (20.6% vs. 30.0%; adjusted odds ratios [aOR]: 1.72; confidence interval [95% CI]: 1.51-1.95) and was more likely with recent pregnancy (45.3% vs. 25.8%; aOR: 1.63; 95% CI: 1.23-2.16). Non-Hispanic Black and Hispanic race and ethnicity, younger age, lower educational attainment, lower income, and Medicaid insurance were associated with lower odds of CGM. The use of CGM was associated with lower odds of diabetic ketoacidosis and lower hemoglobin A1c without any difference in the odds of symptomatic severe hypoglycemia. In conclusion, although CGM use was associated with better glycemic control, the majority of reproductive-age women still did not use it. Those who did not use CGM were more likely to be those at greatest risk of adverse pregnancy outcomes.
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Affiliation(s)
- Kartik K. Venkatesh
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio, USA
| | - Camille E. Powe
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Elizabeth Buschur
- Department of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Jiqiang Wu
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio, USA
| | - Mark B. Landon
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio, USA
| | - Steven Gabbe
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio, USA
| | - Kajal Gandhi
- Department of Pediatrics, The Ohio State University, Columbus, Ohio, USA
| | - William A. Grobman
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio, USA
| | - Naleef Fareed
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio, USA
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4
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Desoye G, Ringholm L, Damm P, Mathiesen ER, van Poppel MNM. Secular trend for increasing birthweight in offspring of pregnant women with type 1 diabetes: is improved placentation the reason? Diabetologia 2023; 66:33-43. [PMID: 36287249 PMCID: PMC9607824 DOI: 10.1007/s00125-022-05820-4] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/26/2022] [Indexed: 12/13/2022]
Abstract
Despite enormous progress in managing blood glucose levels, pregnancy in women with type 1 diabetes still carries risks for the growing fetus. While, previously, fetal undergrowth was not uncommon in these women, with improved maternal glycaemic control we now see an increased prevalence of fetal overgrowth. Besides short-term implications, offspring of women with type 1 diabetes are more likely to become obese and to develop diabetes and features of the metabolic syndrome. Here, we argue that the increase in birthweight is paradoxically related to improved glycaemic control in the pre- and periconceptional periods. Good glycaemic control reduces the prevalence of microangiopathy and improves placentation in early pregnancy, which may lead to unimpeded fetal nutrition. Even mild maternal hyperglycaemia may then later result in fetal overnutrition. This notion is supported by circumstantial evidence that lower HbA1c levels as well as increases in markers of placental size and function in early pregnancy are associated with large-for-gestational age neonates. We also emphasise that neonates with normal birthweight can have excessive fat deposition. This may occur when poor placentation leads to initial fetal undergrowth, followed by fetal overnutrition due to maternal hyperglycaemia. Thus, the complex interaction of glucose levels during different periods of pregnancy ultimately determines the risk of adiposity, which can occur in fetuses with both normal and elevated birthweight. Prevention of fetal adiposity calls for revised goal setting to enable pregnant women to maintain blood glucose levels that are closer to normal. This could be supported by continuous glucose monitoring throughout pregnancy and appropriate maternal gestational weight gain. Future research should consider the measurement of adiposity in neonates.
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Affiliation(s)
- Gernot Desoye
- Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria.
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark.
| | - Lene Ringholm
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology and Metabolism, Rigshospitalet, Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
- Department of Obstetrics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Elisabeth R Mathiesen
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology and Metabolism, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Wyatt MA, Pisarski EE, Kriel Y, Smith PM, Mathenjwa M, Jaggernath M, Smit JA, Matthews LT, Ware NC. Influences on PrEP Uptake and Adherence Among South African Women During Periconception and Pregnancy: A Qualitative Analysis. AIDS Behav 2023; 27:208-217. [PMID: 35771311 PMCID: PMC9245881 DOI: 10.1007/s10461-022-03757-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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] [Accepted: 06/11/2022] [Indexed: 01/24/2023]
Abstract
Pre-exposure prophylaxis (PrEP) is highly effective for HIV prevention, yet PrEP delivery to women in periconception and pregnancy has lagged. We report qualitative research from a study evaluating PrEP use as part of safer conception care for 330 South African women. Fifty-two semi-structured interviews were conducted with 25 study participants to identify influences on PrEP adherence. Influences were: (1) changing proximity to male partners; (2) COVID-19 lockdown; (3) mobile lifestyle; (4) PrEP-related stigma; (5) disclosure of PrEP use; and (6) pregnancy and motherhood. Data also revealed important contextual information shaping adherence influences for women, including: (a) not living with partners, (b) partners as drivers of pregnancy intention, and (c) feeling at high risk for HIV. Disclosure of PrEP use, addressing stigma, strategies for traveling with pills, and counseling on prevention effective adherence are promising components of PrEP-inclusive HIV prevention interventions for South African women who are pregnant or planning pregnancy.
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Affiliation(s)
- Monique A. Wyatt
- Department of Global Health & Social Medicine, Harvard Medical School, 641 Huntington Ave, Boston, USA ,Harvard Global, Cambridge, MA USA
| | - Emily E. Pisarski
- Department of Global Health & Social Medicine, Harvard Medical School, 641 Huntington Ave, Boston, USA
| | - Yolandie Kriel
- Maternal Adolescent and Child Health Research Unit (MRU), Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand, Durban, KZN South Africa
| | - Patricia M. Smith
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL USA
| | - Mxolisi Mathenjwa
- Maternal Adolescent and Child Health Research Unit (MRU), Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand, Durban, KZN South Africa
| | - Manjeetha Jaggernath
- Maternal Adolescent and Child Health Research Unit (MRU), Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand, Durban, KZN South Africa
| | - Jennifer A. Smit
- Maternal Adolescent and Child Health Research Unit (MRU), Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of the Witwatersrand, Durban, KZN South Africa
| | - Lynn T. Matthews
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL USA
| | - Norma C. Ware
- Department of Global Health & Social Medicine, Harvard Medical School, 641 Huntington Ave, Boston, USA ,Department of Medicine, Brigham and Women’s Hospital, Boston, MA USA
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Holt WV, Fazeli A, Otero-Ferrer F. Sperm transport and male pregnancy in seahorses: An unusual model for reproductive science. Anim Reprod Sci 2022; 246:106854. [PMID: 34579988 DOI: 10.1016/j.anireprosci.2021.106854] [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: 05/21/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/14/2022]
Abstract
The Syngnathidae (seahorses and pipefishes) are a group of teleost fishes in which, uniquely, developing embryos are hosted throughout pregnancy by males, using a specialized brood pouch situated on the abdomen or tail. Seahorses have evolved the most advanced form of brood pouch, whereby zygotes and embryos are intimately connected to the host's circulatory system and also bathed in pouch fluid. The pouch is closed to the external environment and has to perform functions such as gaseous exchange, removal of waste and maintenance of appropriate osmotic conditions, much like the mammalian placenta. Fertilization of the oocytes occurs within the brood pouch, but unlike the mammalian situation the sperm transport mechanism from the ejaculatory duct towards the pouch is unclear, and the sperm: egg ratio (about 5:1) is possibly the least of any vertebrate. In this review, there is highlighting of the difficulty of elucidating the sperm transport mechanism, based on studies of Hippocampus kuda. The similarities between seahorse pouch function and the mammalian placenta have led to suggestions that the pouch provides important nutritional support for the developing embryos, supplementing the nutritional functions of the yolk sac provided by the oocytes. In this review, there is a description of the recent evidence in support of this hypothesis, and also emphasis, as in mammals, that embryonic development depends on nutritional support from the placenta-like pouch at important stages of the gestational period ("critical windows").
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Affiliation(s)
- William V Holt
- Academic Unit of Reproductive and Developmental Medicine, Department of Oncology and Metabolism, University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK.
| | - Alireza Fazeli
- Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia; Department of Pathophysiology, Institute of Biomedicine and Translational Medicine, Faculty of Medicine, Tartu University, Tartu, Estonia; Academic Unit of Reproductive and Developmental Medicine, Department of Oncology and Metabolism, Medical School, University of Sheffield, Sheffield, UK
| | - Francisco Otero-Ferrer
- University Institute of Sustainable Aquaculture and Marine Ecosystems (IU ECOAQUA) Scientific and Technological Marine Park, University of Las Palmas de Gran Canaria, 35200, Spain
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7
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Mida LA, della Zazzera V, Fontaine-Bisson B. Knowledge, attitude and practice of physicians regarding periconceptional folic acid for women at low risk of a neural tube defect affected pregnancy. Prev Med Rep 2021; 22:101327. [PMID: 33665065 PMCID: PMC7903458 DOI: 10.1016/j.pmedr.2021.101327] [Citation(s) in RCA: 1] [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: 02/26/2020] [Revised: 12/18/2020] [Accepted: 01/23/2021] [Indexed: 11/19/2022] Open
Abstract
Canadian expert guidelines recommend low-risk women to consume a daily multivitamin supplement containing 400 µg of folic acid (FA) to prevent neural tube defects. Mandatory food fortification coupled with intake of prenatal vitamin/mineral supplements (PVS), most of which contain ≥ 1000 µg-FA, has resulted in an unprecedented shift in Canadian pregnant women folate status. This study assessed the knowledge, attitude and practice (KAP) of physicians regarding periconceptional FA recommendations, intake and health related outcomes, since they play an essential role in promoting appropriate FA intake. Seventy-seven physicians answered the self-administered KAP survey. Only half of physicians knew the correct dose and duration of FA for low-risk women. Approximately 70% were unsure of, or unfamiliar with the most recent guidelines and 60% of physicians most often recommend a ≥ 1000 µg-FA supplement. Knowledge score 1 (KS1), which related to low-risk women, was associated with physicians' attitude toward believing that most PVS contain the recommended amount of FA (p = 0.004). Significant correlations were also found between KS1 and the total practice score (TPS) (r = 0.45, p < 0.0001) as well as between the total knowledge score and TPS (r = 0.38, p = 0.0007). Our findings show that physicians lacking knowledge regarding periconceptional FA is associated with their attitude and practice. Despite a vast majority of physicians being unsure or uncomfortable recommending PVS that are not in line with recommendations, a lack of knowledge and a widely accessible 400 µg-FA PVS, enables a contradictory practice in reality.
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Affiliation(s)
- Liana Arielle Mida
- Interdisciplinary School of Health Sciences, University of Ottawa, 25 University Private, Ottawa, Canada
| | | | - Bénédicte Fontaine-Bisson
- School of Nutrition Sciences, University of Ottawa, 25 University Private, Ottawa, Canada
- Institut du savoir Montfort, Hôpital Montfort, 713 Montreal Road, Ottawa, Canada
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8
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Monoarfa Y, Gumilar E, Widasari L, Yekti R, Otoluwa AS, Thaha AR. The effect of selenium and multiple micronutrient administration during periconception period on the level of malondialdehyde. Enferm Clin 2021. [PMID: 32545026 DOI: 10.1016/j.enfcli.2019.10.053] [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] [Indexed: 11/16/2022]
Abstract
OBJECTIVE This study aimed to prove the effect of Selenium during periconception to the level of Malodialdehyde in pregnancy. METHODS This study was double blind, randomised, control community based trial design. The intervention group (10 periconception women) received Selenium in Multimicronutrient (MMN), while the control group (22 periconception women) given capsules containing Iron and Folic Acid. During preconceptional period, the capsules was given once a week, while in pregnant women was once a day. At the 12th and 20th weeks of pregnancy, selenium and MDA were measured. Statistical analysis using independent T-test, Paired T-Test and PLS analysis. RESULTS At the 12th weeks of pregnancy the level of MDA in Multimicronutrient group was 121.2ng/mL and IFA group was 1436ng/mL, and at the 20th weeks in MMN group was 108.4ng/Ml and IFA group was 199.6ng/mL. There was a no significant difference between MDA in two groups (p=0.424) at 12th week, but at 20th weeks MMN group had a significantly lower MDA levels (p=0.006) than IFA group. CONCLUSION The administration of selenium in MMN preparations since the preconception period has a better effect in reducing MDA levels compared to the IFA group.
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Affiliation(s)
| | - Erry Gumilar
- Department of Fetomaternal, Faculty of Medicine, Soetomo General Hospital, Universitas Airlangga, Surabaya, Indonesia
| | - Lucy Widasari
- Faculty of Medicine, Universitas Pembangunan Nasional Veteran, Jakarta, Indonesia
| | - Rahayu Yekti
- Faculty of Medicine, Universitas Kristen Indonesia, Jakarta, Indonesia
| | | | - Abd Razak Thaha
- Department of Public Health Nutrition, Faculty of Public Health, Universitas Hasanuddin, Makassar, Indonesia
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Ng KYB, Steegers-Theunissen R, Willemsen S, Wellstead S, Cheong Y, Macklon N. Smartphone-based lifestyle coaching modifies behaviours in women with subfertility or recurrent miscarriage: a randomized controlled trial. Reprod Biomed Online 2021; 43:111-119. [PMID: 34053852 DOI: 10.1016/j.rbmo.2021.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/17/2020] [Revised: 03/18/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
RESEARCH QUESTION Is an online lifestyle coaching platform more effective at modifying periconceptional behaviours than standard advice offered by the UK National Health Service (NHS)? DESIGN Women with subfertility or recurrent miscarriage were recruited to a two-centre randomized controlled trial. They were randomized to either the online lifestyle coaching platform Smarter Pregnancy (intervention) or periconceptional advice provided by NHS websites (control). Participants completed a lifestyle questionnaire at baseline, 6, 12, 18 and 24 weeks, and the results were used to tailor lifestyle coaching in the intervention group. At baseline, 12 and 24 weeks, composite risk scores (CRS) were calculated. A lower CRS corresponds to a healthier lifestyle. RESULTS Of the 400 women recruited, 262 women were randomized (131 in each arm). At 12 weeks, a reduction in CRS (includes risk score for intake of folic acid, vegetables and fruits, smoking and alcohol) was observed in the intervention versus control arms. After correcting for baseline, the difference in the CRS between intervention and control was -0.47 (95% CI -0.97 to 0.02) at 12 weeks and -0.32 (95% CI -0.82 to 0.15) at 24 weeks. A statistically significant reduction in lifestyle risk scores was found in women with a body mass index (BMI) of 25 kg/m2 or above compared with those with a BMI below 25kg/m2. The odds of being pregnant at 24 weeks was increased in the intervention versus control (OR 2.83, 95% CI 0.35 to 57.76). CONCLUSIONS The Smarter Pregnancy coaching platform is more effective in delivering lifestyle advice and modulating behaviours to support women with a history of subfertility or recurrent miscarriage than standard online NHS advice.
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Affiliation(s)
- Ka Ying Bonnie Ng
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; Department of Obstetrics and Gynaecology, Princess Anne Hospital, Room F86, Level F, Coxford Road, Southampton SO16 5YA, UK.
| | - Régine Steegers-Theunissen
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Sten Willemsen
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands; Department of Epidemiology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Susan Wellstead
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; Department of Obstetrics and Gynaecology, Princess Anne Hospital, Room F86, Level F, Coxford Road, Southampton SO16 5YA, UK
| | - Ying Cheong
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; Department of Obstetrics and Gynaecology, Princess Anne Hospital, Room F86, Level F, Coxford Road, Southampton SO16 5YA, UK
| | - Nick Macklon
- Reprohealth, Zealand University Hospital, University of Copenhagen, Denmark; London Women's Clinic, London, UK
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10
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Green MP, Harvey AJ, Finger BJ, Tarulli GA. Endocrine disrupting chemicals: Impacts on human fertility and fecundity during the peri-conception period. Environ Res 2021; 194:110694. [PMID: 33385395 DOI: 10.1016/j.envres.2020.110694] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 05/08/2023]
Abstract
It is becoming increasingly difficult to avoid exposure to man-made endocrine disrupting chemicals (EDCs) and environmental toxicants. This escalating yet constant exposure is postulated to partially explain the concurrent decline in human fertility that has occurred over the last 50 years. Controversy however remains as to whether associations exist, with conflicting findings commonly reported for all major EDC classes. The primary aim of this extensive work was to identify and review strong peer-reviewed evidence regarding the effects of environmentally-relevant EDC concentrations on adult male and female fertility during the critical periconception period on reproductive hormone concentrations, gamete and embryo characteristics, as well as the time to pregnancy in the general population. Secondly, to ascertain whether individuals or couples diagnosed as sub-fertile exhibit higher EDC or toxicant concentrations. Lastly, to highlight where little or no data exists that prevents strong associations being identified. From the greater than 1480 known EDCs, substantial evidence supports a negative association between exposure to phthalates, PCBs, PBDEs, pyrethroids, organochloride pesticides and male fertility and fecundity. Only moderate evidence exists for a negative association between BPA, PCBs, organochloride pesticides and female fertility and fecundity. Overall fewer studies were reported in women than men, with knowledge gaps generally evident for both sexes for all the major EDC classes, as well as a paucity of female fertility studies following exposure to parabens, triclosans, dioxins, PFAS, organophosphates and pyrethroids. Generally, sub-fertile individuals or couples exhibit higher EDC concentrations, endorsing a positive association between EDC exposure and sub-fertility. This review also discusses confounding and limiting factors that hamper our understanding of EDC exposures on fertility and fecundity. Finally, it highlights future research areas, as well as government, industry and social awareness strategies required to mitigate the negative effects of EDC and environmental toxicant exposure on human fertility and fecundity.
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Affiliation(s)
- Mark P Green
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia.
| | - Alexandra J Harvey
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Bethany J Finger
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Gerard A Tarulli
- School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
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11
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Ishitsuka K, Sasaki S, Yamamoto-Hanada K, Mezawa H, Konishi M, Ohya Y. Changes in Dietary Intake in Pregnant Women from Periconception to Pregnancy in the Japan Environment and Children's Study: A Nationwide Japanese Birth Cohort Study. Matern Child Health J 2020; 24:389-400. [PMID: 31894508 DOI: 10.1007/s10995-019-02835-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Nutritional requirements increase during pregnancy. However, relatively few studies have examined longitudinal changes in dietary intake from periconception to pregnancy. Here, we investigated changes in the intake of food and nutrients, and compliance with dietary reference intakes (DRIs) in pregnant women. METHODS The Japan Environment and Children's Study, a nationwide multicenter prospective cohort study, included 30,373 pregnant women who answered a validated food frequency questionnaire repeatedly to assess changes in dietary intake in periconception and pregnancy. Energy-adjusted intakes of food groups and nutrients were described using the density method. The percentage of women not meeting DRIs was calculated. RESULTS Of all foods groups examined, intake of food significantly increased from periconception to pregnancy for dairy products (mean difference 23.5 g/1000 kcal, 95% confidence interval [CI] 22.0-25.0 g/1000 kcal), confectionaries (2.0 g/1000 kcal, 1.8-2.2 g/1000 kcal), and soft drinks (1.3 g/1000 kcal, 0.3-2.3 g/1000 kcal). Of all nutrients examined, intake was significantly increased for calcium (mean difference 27 mg/1000 kcal, 95% CI 25-29 mg/1000 kcal), vitamin A (15 μgRE/1000 kcal, 13-18 g/1000 kcal), and saturated fat (0.4% energy, 0.4-0.4% energy). The percentage of women not meeting DRIs increased for vitamin B group, vitamin C, saturated fat and salt. CONCLUSION We found that energy-adjusted intakes of calcium, vitamin A, and saturated fat increased from periconception to pregnancy, while intake of other nutrients did not increase. The percentage of women not meeting DRIs increased for water-soluble vitamins, saturated fat, and salt.
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Affiliation(s)
- Kazue Ishitsuka
- Medical Research Center for Japan Environment and Children's Study, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
- Department of Social and Preventive Epidemiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
| | - Satoshi Sasaki
- Department of Social and Preventive Epidemiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
- Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
| | - Kiwako Yamamoto-Hanada
- Medical Research Center for Japan Environment and Children's Study, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
| | - Hidetoshi Mezawa
- Medical Research Center for Japan Environment and Children's Study, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
| | - Mizuho Konishi
- Medical Research Center for Japan Environment and Children's Study, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
| | - Yukihiro Ohya
- Medical Research Center for Japan Environment and Children's Study, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan.
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Wu Y, Yuan Y, Kong C, Ma Q, Ye H, Jing W, Liu J, Liu M. The association between periconceptional folic acid supplementation and the risk of preterm birth: a population-based retrospective cohort study of 200,000 women in China. Eur J Nutr 2021; 60:2181-92. [PMID: 33074387 DOI: 10.1007/s00394-020-02409-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 05/08/2020] [Accepted: 10/06/2020] [Indexed: 11/01/2022]
Abstract
PURPOSE The aim of this study was to examine the association between periconceptional folic acid (FA) supplementation and risk of preterm birth. METHODS We conducted a retrospective cohort study in women aged 18-49 who participated in the NFPHEP from 2010 to 2018, and had a singleton livebirth in 129 counties in southwest China. Participants were divided into four groups according to the time period starting FA use: no use, after the last menstrual period, at least 1-2 months before the last menstrual period, at least 3 months before the last menstrual period. The outcomes were preterm birth (gestation < 37 weeks) and early preterm birth (gestation < 34 weeks). RESULTS 201,477 women were included and 191,809 (95.2%) had taken FA during periconception. Compared with women who did not take FA, women who started taking FA 1-2 months before their last menstrual period had a 15% lower risk of preterm birth (aOR = 0.85, 95% CI 0.79-0.92), and women who started taking FA at least 3 months before their last menstrual period had a 20% lower risk of preterm birth (aOR = 0.80, 95% CI 0.75-0.87), but women who started taking FA after their last menstrual period did not appear to reduce the risk of preterm birth. CONCLUSIONS In this study of 200,000 Chinese women, periconceptional supplementation with FA was associated with a lower risk of preterm birth. Women who started taking FA at least 3 months before their last menstrual period were more likely to reduce the risk of preterm birth.
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Abstract
OBJECTIVE To find out the status of folic acid supplementation among women, to evaluate the prevention effects on neural tube defects (NTDs), and to explore the factors impact on folic acid supplementation compliance. METHODS Based on the routine data of 92 121 women in prenatal health care and birth defect surveillance system in Tongzhou District of Beijing from 2013 to 2018, we described the prevalence of periconceptional folic acid supplementation, pre-pregnancy folic acid supplementation and regularly folic acid supplementation (compliance supplementation). Trend χ2 tests were used to evaluate the change of folic acid supplementation prevalence. The prevalence difference among the women with folic acid supplementation and without supplementation were tested with Fisher's exact test. Factors asso-ciated with folic acid supplementation compliance rate were analyzed with univariate and multivariate Logistic regression model. RESULTS The prevalence of periconceptional folic acid supplementation during the six years was 90.08% and it was increased from 2013 to 2018, but the rate of pre-pregnancy and regular supplementation was only 41.5% and declined from 2013 to 2018, especially 2013 to 2015. The prevalence of NTDs among the fetuses whose mothers took folic acid during periconceptional period was 5.5/10 000, while the prevalence for the fetuses whose mothers did not take folic acid was 19.7/10 000 (P < 0.001), the rates ratio was 27.9% (χ2=23.74, P < 0.001). The difference between the prevalence of NTDs among the fetuses whose mothers took folic acid only and multiple micronutrients was not statistically significant. After controlling the confounding factors, it was found that the compliant folic acid supplementation rates in women, whose household registrations were outside Beijing and whose education levels were junior high school or below, and who were younger than 25 years old, and who were multiparas and who were pre-pregnancy underweight or obese, were lower than those of the corresponding control groups (P < 0.05). CONCLUSION The rate of folic acid supplementation among women in Tongzhou District of Beijing was relatively high, but their compliance was poor. Women who did not take folic acid during periconception seriously affected the prevention effect of NTDs. We should focus on women who are younger than 25 years old, lower educated, pre-pregnancy underweight or obese, multiparas and nonlocal household registers, in order to improve the periconceptional folic acid supplementation compliance and improve the effects of NTDs prevention.
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Matusiak K, Barrett HL, Lust K, Callaway LK, Dekker Nitert M. Self-reported periconception weight loss attempts do not alter infant body composition. Nutrition 2020; 77:110781. [PMID: 32283340 DOI: 10.1016/j.nut.2020.110781] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 02/10/2020] [Accepted: 02/15/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Maternal obesity increases the risk for adverse infant outcomes; therefore, achieving an optimal body mass index before conception is recommended. Periconceptional maternal weight loss, however, has been associated with adverse outcomes for the fetus, including altered body composition in animal studies. It is not clear whether periconception weight loss alters infant body composition in humans. The aim of this study was to compare body composition in offspring of women who attempted to lose or maintain weight in the periconception period. METHODS Women who delivered a healthy term infant were grouped according to attempt to lose weight. Infant body composition was determined by air displacement plethysmography and anthropometric measurements. RESULTS In a cohort of 73 women, 27 attempted to lose weight and 46 maintained weight in the periconception period. Infant birth weight, percent body fat, and head and arm circumference were not altered by maternal attempts to lose weight. Infant abdominal circumference was increased in the offspring of women who attempted to lose weight in the periconception period. Infant percent body fat was increased in overweight and obese mothers and in female infants. CONCLUSION The results of this study showed that attempts to lose weight in the periconception period do not significantly alter infant body composition. The increase in abdominal circumference may indicate a difference in fat distribution in offspring of women who attempted to lose weight, which may increase their risk for future metabolic and cardiovascular disease.
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Affiliation(s)
- Kristine Matusiak
- Faculty of Medicine, The University of Queensland, Herston, Australia
| | - Helen L Barrett
- Faculty of Medicine, The University of Queensland, Herston, Australia; Mater Medical Research Institute, South Brisbane, Australia
| | - Karin Lust
- Women's and Newborn Services, Royal Brisbane and Women's Hospital, Herston, Australia
| | - Leonie K Callaway
- Faculty of Medicine, The University of Queensland, Herston, Australia; Women's and Newborn Services, Royal Brisbane and Women's Hospital, Herston, Australia
| | - Marloes Dekker Nitert
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia.
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Wei Y, Jin L, Li Z, Liu J, Wang L, Pi X, Yin S, Wang C, Ren A. Levels of uranium and thorium in maternal scalp hair and risk of orofacial clefts in offspring. J Environ Radioact 2019; 204:125-131. [PMID: 31029986 DOI: 10.1016/j.jenvrad.2019.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
Uranium and thorium are common radioactive elements that exist in the environment. However, few environmental epidemiological studies have focused on their possible effects on congenital malformations. Here, we explored the association between uranium and thorium concentrations in maternal scalp hair grown from 3 months before to 3 months after conception, namely during the periconceptional period and the risk of orofacial clefts (OFCs) in offspring. Our study included 153 women whose pregnancies were affected by OFCs (cases) and 601 women who delivered infants without birth defects (controls) from four provinces in China. Face-to-face interviews were used to collect sociodemographic characteristics with a structured questionnaire. Concentrations of uranium and thorium in maternal scalp hair grown during the periconceptional period were detected using inductively coupled plasma-mass spectrometry. The risk of OFCs in association with higher concentrations of the two radioactive elements was estimated using odds ratios (ORs) and 95% confidence intervals (CIs) while adjusting for potential confounding factors. The levels of uranium and thorium in maternal hair were in agreement with the published literature. After adjusting for several confounders, the ORs of thorium in the highest, upper, and lower quartile versus the lowest quartile were 2.63 (95% CI, 1.41-4.92), 1.98 (95% CI, 1.03-3.79), and 2.73 (95% CI, 1.46-5.12), respectively. No association was found between levels of uranium and the risk of OFCs. Maternal periconceptional exposure to thorium may be a risk factor for OFCs in offspring.
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Affiliation(s)
- Yihui Wei
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Lei Jin
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Jufen Liu
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Linlin Wang
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Xin Pi
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Shengju Yin
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Chengrong Wang
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China
| | - Aiguo Ren
- Institute of Reproductive and Child Health, Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Peking University, Beijing 100191, PR China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, PR China.
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Koster MPH, van Duijn L, Krul-Poel YHM, Laven JS, Helbing WA, Simsek S, Steegers-Theunissen RPM. A compromised maternal vitamin D status is associated with congenital heart defects in offspring. Early Hum Dev 2018; 117:50-6. [PMID: 29287191 DOI: 10.1016/j.earlhumdev.2017.12.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 12/18/2017] [Accepted: 12/19/2017] [Indexed: 01/24/2023]
Abstract
BACKGROUND Interactions between genetic and environmental factors, including modifiable maternal nutrition and lifestyle, play a significant role in the pathogenesis of most congenital heart defects (CHD). The aim of this study was to investigate associations between periconceptional maternal vitamin D status and the prevalence of CHD in offspring. METHODS A case-control study was performed in 345 mothers of a child with CHD and 432 mothers of a child without CHD from four tertiary hospitals in the Netherlands between 2003 and 2005. Approximately 15months after pregnancy mothers filled out questionnaires regarding general characteristics and periconceptional lifestyle. Maternal blood was obtained to determine serum 25-hydroxyvitamin D and lipid concentrations. The 25-hydroxyvitamin D concentration was stratified into a deficient <50nmol/l, moderate 50-75nmol/l and adequate >75nmol/l status. Logistic regression was performed to study associations between vitamin D status and CHD risk, adjusted for maternal age, body mass index, ethnicity, smoking and total cholesterol concentration. RESULTS Case mothers less often had an adequate vitamin D status compared with controls (27% vs. 38%; p=0.002). The use of multivitamin supplements, ethnicity, season and body mass index were associated with vitamin D concentrations. A moderate (odds ratio 1.58, [95%CI 1.08, 2.32]) and deficient (odds ratio 2.15, [95%CI 1.44-3.19]) vitamin D status were associated with CHD in offspring. CONCLUSION A compromised maternal vitamin D status is associated with an approximately two-fold increased prevalence of CHD in offspring. Therefore, improvement of the periconceptional maternal vitamin D status is recommended.
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Yan J, Zheng YZ, Cao LJ, Liu YY, Li W, Huang GW. Periconceptional Folic Acid Supplementation in Chinese Women: A Cross-sectional Study. Biomed Environ Sci 2017; 30:737-748. [PMID: 29122094 DOI: 10.3967/bes2017.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the status of folic acid (FA) supplementation and determinants of its use in pregnant Chinese women. METHODS In this cross-sectional study, questionnaires were used to collect information of participants and FA supplementation. Women were recruited between 6 and 12 weeks postpartum in Tianjin, China, between July 2015 and July 2016. RESULTS A total of 1,921 women were recruited in the study. Approximately 93.1% of the study participants used FA, while 14.4% of the women taking FA from three months prior to preconception to three months post-conception. Women who took FA for three months prior to preconception through at least three months into their pregnancy were more likely to be between 30 and 34 years old (OR = 2.91, 95% CI: 1.15, 7.33), employed (OR = 2.07, 95% CI: 1.17, 3.67), primigravida (OR = 5.20, 95% CI: 3.02, 8.96), married to spouses with an intermediate education level (OR = 2.92, 95% CI: 1.45, 5.89), and earn a high family income (OR = 3.19, 95% CI: 1.57, 6.49). CONCLUSION The prevalence of periconceptional FA intake was far below the requirements of the National Health and Family Planning Commission of China; therefore, knowledge of FA supplementation should be strengthened among women who are or planning to become pregnant.
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Affiliation(s)
- Jing Yan
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Department of Social Medicine and Health Administration, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Yu Zhi Zheng
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Lu Jia Cao
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Yu Yan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Guo Wei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
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Ord J, Fazeli A, Watt PJ. Long-Term Effects of the Periconception Period on Embryo Epigenetic Profile and Phenotype: The Role of Stress and How This Effect Is Mediated. Adv Exp Med Biol 2017; 1014:117-35. [PMID: 28864988 DOI: 10.1007/978-3-319-62414-3_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Stress represents an unavoidable aspect of human life, and pathologies associated with dysregulation of stress mechanisms - particularly psychiatric disorders - represent a significant global health problem. While it has long been observed that levels of stress experienced in the periconception period may greatly affect the offspring's risk of psychiatric disorders, the mechanisms underlying these associations are not yet comprehensively understood. In order to address this question, this chapter will take a 'top-down' approach, by first defining stress and associated concepts, before exploring the mechanistic basis of the stress response in the form of the hypothalamic-pituitary-adrenal (HPA) axis, and how dysregulation of the HPA axis can impede our mental and physical health, primarily via imbalances in glucocorticoids (GCs) and their corresponding receptors (GRs) in the brain. The current extent of knowledge pertaining to the impact of stress on developmental programming and epigenetic inheritance is then extensively discussed, including the role of chromatin remodelling associated with specific HPA axis-related genes and the possible role of regulatory RNAs as messengers of environmental stress both in the intrauterine environment and across the germ line. Furthering our understanding of the role of stress on embryonic development is crucial if we are to increase our predictive power of disease risk and devise-effective treatments and intervention strategies.
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Gao L, Cui SS, Han Y, Dai W, Su YY, Zhang X. Does Periconceptional Fish Consumption by Parents Affect the Incidence of Autism Spectrum Disorder and Intelligence Deficiency? A Case-control Study in Tianjin, China. Biomed Environ Sci 2016; 29:885-892. [PMID: 28081749 DOI: 10.3967/bes2016.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 11/30/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE This study aimed to explore the association between periconceptional fish consumption by parents and autism spectrum disorder (ASD) and intelligence deficiency (ID). METHODS A case-control study was conducted through a questionnaire with 108 ASD cases, 79 ID cases, and 108 controls. The ASD and ID cases were students from special educational schools in Tianjin from 2012 to 2014. The age- and sex-matched controls were from a high school, three primary schools, and a kindergarten in Tianjin. Multivariate logistic regression was performed. RESULTS Paternal habit of eating hairtail before fertilization, maternal preference for fruits during pregnancy, and maternal habit of eating grass carp during pregnancy were preventive factors for ASD. Paternal habit of drinking alcohol before fertilization was a risk factor for ID, whereas maternal preference for fruits during pregnancy and maternal habit of eating crucian carp during pregnancy were protective factors for ID. CONCLUSION Parental fish consumption is beneficial for the prevention of ASD and ID. Meanwhile, the protective effects of fish consumption on ASD and ID differ. More attention should be paid to the combined effect of other food when eating fish.
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Affiliation(s)
- Lei Gao
- Dept. Maternal, Child & Adolescence Health of School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Shan Shan Cui
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Yu Han
- Dept. Maternal, Child & Adolescence Health of School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Wei Dai
- Dept. Maternal, Child & Adolescence Health of School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Yuan Yuan Su
- Dept. Maternal, Child & Adolescence Health of School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Xin Zhang
- Dept. Maternal, Child & Adolescence Health of School of Public Health, Tianjin Medical University, Tianjin 300070, China
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Abstract
The cross talk between gametes, embryos, and female reproductive tract plays a crucial role in fine tuning of different reproductive events as well as influencing the epigenetic profile of offspring and their health in adulthood. Here, we describe some background to the recent investigations leading to the discovery of this cross talk. We will also point to important requirements for understanding the maternal communication with gametes and embryos. Finally, we mention two probable hypotheses regarding how gametes and embryos are recognized by the female reproductive tract. It is clear that understanding this cross talk is leading to the production of new means for increasing fertility and potentials for affecting the epigenomic profile of an individual.
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Affiliation(s)
- Alireza Fazeli
- Department of Oncology & Metabolism, Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Sheffield, UK.
| | - William V Holt
- Department of Oncology & Metabolism, Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Sheffield, UK
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Velazquez MA. Impact of maternal malnutrition during the periconceptional period on mammalian preimplantation embryo development. Domest Anim Endocrinol 2015; 51:27-45. [PMID: 25498236 DOI: 10.1016/j.domaniend.2014.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 02/07/2023]
Abstract
During episodes of undernutrition and overnutrition the mammalian preimplantation embryo undergoes molecular and metabolic adaptations to cope with nutrient deficits or excesses. Maternal adaptations also take place to keep a nutritional microenvironment favorable for oocyte development and embryo formation. This maternal-embryo communication takes place via several nutritional mediators. Although adaptive responses to malnutrition by both the mother and the embryo may ensure blastocyst formation, the resultant quality of the embryo can be compromised, leading to early pregnancy failure. Still, studies have shown that, although early embryonic mortality can be induced during malnutrition, the preimplantation embryo possesses an enormous plasticity that allows it to implant and achieve a full-term pregnancy under nutritional stress, even in extreme cases of malnutrition. This developmental strategy, however, may come with a price, as shown by the adverse developmental programming induced by even subtle nutritional challenges exerted exclusively during folliculogenesis and the preimplantation period, resulting in offspring with a higher risk of developing deleterious phenotypes in adulthood. Overall, current evidence indicates that malnutrition during the periconceptional period can induce cellular and molecular alterations in preimplantation embryos with repercussions for fertility and postnatal health.
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Affiliation(s)
- M A Velazquez
- Centre for Biological Sciences, University of Southampton, Southampton General Hospital, Southampton, UK.
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Fazeli A, Moein Vaziri N, Holt WV. Proteomics of the periconception milieu. Proteomics 2015; 15:649-55. [PMID: 25404351 DOI: 10.1002/pmic.201400362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 08/04/2014] [Revised: 11/09/2014] [Accepted: 11/13/2014] [Indexed: 01/11/2023]
Abstract
There is increasing realisation that human health status in adulthood depends critically upon environmental conditions pertaining around the time of conception and during pregnancy. Poor maternal diet or adverse environmental conditions around the periconception period somehow induces the resultant embryo to adapt predictively in order to survive this level of stress for the whole of its life. However, if there is a mismatch between expectation and reality, where the conditions during later life are better than expected, things go wrong and the adult suffers a range of illnesses, including diabetes, heart disease, hypertension and stroke. Understanding the molecular signals that direct the early embryo to adopt appropriate adaptations to suit its future life would be extremely valuable. However, although it appears to be an ideal task for proteomic applications, there are technical, ethical and practical limitations to what can be achieved with the current framework of proteomic technology. Here, we review what has been achieved to date, explain some of the experimental problems and suggest some strategies for taking this field forward.
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Affiliation(s)
- Alireza Fazeli
- Academic Unit of Reproductive and Developmental Medicine, University of Sheffield, Sheffield, UK
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Ganesh D, Sagayaraj BM, Barua RK, Sharma N, Ranga U. Arnold Chiari malformation with spina bifida: a lost opportunity of folic Acid supplementation. J Clin Diagn Res 2014; 8:OD01-3. [PMID: 25653995 DOI: 10.7860/jcdr/2014/11242.5335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 09/13/2014] [Accepted: 11/17/2014] [Indexed: 11/24/2022]
Abstract
In Arnold Chiari (kee-AHR-ee) II malformation elongated cerebellar tonsils are displaced inferiorly through the Foramen Magnum into the upper cervical spinal canal. It is a complex anomaly with skull, dura, brain, spine and cord manifestations. Meningomyelocele is seen in all cases. We present a case of type II Arnold Chiari Malformation diagnosed in utero in a pregnant lady .There was no periconceptional folic acid supplementation. As the role of the Methylene Tetra Hydro Folate Reductase gene polymorphism in neural tube defects is becoming evident, a simple opportunity as folic acid supplementation should not be missed. Folate supplementation as fortification of cereal grains will also prevent other conditions like congenital heart defects, urinary tract anomalies, orofacial defects, limb defects and pyloric stenosis.
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Affiliation(s)
- Deepa Ganesh
- Assistant Professor, Department of Gynaecology, Saveetha Medical College and Hospital , Chennai, Tamilnadu, India
| | - Benjamin M Sagayaraj
- Associate Professor, Department of Paediatrics, Saveetha Medical College and Hospital , Chennai, Tamilnadu, India
| | - Ravi Kumar Barua
- Professor, Department of Gynaecology, Saveetha Medical College and Hospital , Chennai, Tamilnadu, India
| | - Nidhi Sharma
- Associate Professor, Department of Gynaecology, Saveetha Medical College and Hospital , Chennai, Tamilnadu, India
| | - Upasana Ranga
- Associate Professor, Department of Radiology, Saveetha Medical College and Hospital , Chennai, Tamilnadu, India
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