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Neural tube defect and folic acid

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https://www.readbyqxmd.com/read/29341861/genome-wide-survey-reveals-dynamic-effects-of-folate-supplement-on-dna-methylation-and-gene-expression-during-c2c12-differentiation
#1
Yi Li, Qiang Feng, Miao Guo, Yuding Wang, Yunliang Jiang, Jinyi Xing
Folic acid supplements during pregnancy can prevent neural tube defects and other developmental abnormalities. Here, we explored the effects of folate supplement on gene expression and DNA methylation during C2C12 differentiation. Based on the folic acid concentration, this study comprised three groups: low folate (L), normal folate (N), and high-folate supplement (H). Our analyses revealed that differentiation and the mRNA expression of myogenin in C2C12 cell were enhanced by folic acid, however, the overall methylation percentage in myogenin promoter between different treatment groups was not significantly different (P>0...
January 12, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29340017/altered-gnas-imprinting-due-to-folic-acid-deficiency-contributes-to-poor-embryo-development-and-may-lead-to-neural-tube-defects
#2
Li Wang, Shaoyan Chang, Zhen Wang, Shan Wang, Junsheng Huo, Gangqiang Ding, Rui Li, Chi Liu, Shaofang Shangguan, Xiaolin Lu, Ting Zhang, Zhiyong Qiu, Jianxin Wu
Disturbed epigenetic modifications have been linked to the pathogenesis of Neural Tube Defects (NTDs) in those with folate deficiency during pregnancy. However, evidence is lacking to delineate the critical region in epigenome regulated by parental folic acid and mechanisms by which folate deficiency affects normal embryogenesis. Our data from clinical samples revealed the presence of aberrant DNA methylation in GNAS imprinting cluster in NTD samples with low folate concentrations. Results from mouse models indicated that the establishment of GNAS imprinting was influenced by both maternal and paternal folate-deficient diets...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29215383/mood-stabilizing-anticonvulsants-spina-bifida-and-folate-supplementation-commentary
#3
Neil Patel, Adele C Viguera, Ross J Baldessarini
PURPOSE/BACKGROUND: High risks of neural tube defects and other teratogenic effects are associated with exposure in early pregnancy to some anticonvulsants, including in women with bipolar disorder. METHODS/PROCEDURES: Based on a semistructured review of recent literature, we summarized findings pertaining to this topic. FINDINGS/RESULTS: Valproate and carbamazepine are commonly used empirically (off-label) for putative long-term mood-stabilizing effects...
February 2018: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29213169/clinical-profile-of-neural-tube-defects-in-sudanese-children-is-malaria-a-risk-factor
#4
Basma Sadik, Haydar E Babikir, Mohammed A R Arbab
Neural tube defects (NTDs) are one of the most common structural malformations in human kind. It is a public health problem with great impact on the child, parents and the community at large. The aim is to study the epidemiological profile and patterns of NTDs in under five-year of age Sudanese children who attended the neurosurgical clinic at the National Centre of Neurological Sciences (NCNS), Khartoum during the period from March 2014 to December 2014. This was a prospective cross-sectional study conducted at the neurosurgery clinic in NCNS, Khartoum...
2017: Sudanese Journal of Paediatrics
https://www.readbyqxmd.com/read/29193886/association-between-severe-nausea-and-vomiting-in-early-pregnancy-and-the-risk-of-neural-tube-defects-in-northern-china
#5
Yali Zhang, Zhiwen Li, Le Zhang, Jufen Liu, Lei Jin, Aiguo Ren
BACKGROUND: This study assessed the association between severe NVP and the risk of NTD in offspring compared with a population and a malformed control group. We also assessed whether folic acid supplements modified this association. STUDY DESIGN AND SETTING: A case-control study was conducted with subjects enrolled from June 19, 2002, to November 18, 2014, from a population-based birth defects surveillance system that monitors major external structural birth defects through active case ascertainment in Shanxi Province, China...
November 28, 2017: Birth Defects Research
https://www.readbyqxmd.com/read/29190654/prenatal-folic-acid-use-associated-with-decreased-risk-of-myelomeningocele-a-case-control-study-offers-further-support-for-folic-acid-fortification-in-bangladesh
#6
Vijaya Kancherla, Md Omar Sharif Ibne Hasan, Rezina Hamid, Ligi Paul, Jacob Selhub, Godfrey Oakley, Quazi Quamruzzaman, Maitreyi Mazumdar
Neural tube defects contribute to severe morbidity and mortality in children and adults; however, they are largely preventable through maternal intake of folic acid before and during early pregnancy. We examined the association between maternal prenatal folic acid supplement intake and risk of myelomeningocele (a severe and common type of neural tube defect) in the offspring. We performed secondary analysis using data from a case-control study conducted at Dhaka Community Hospital, Bangladesh between April and November of 2013...
2017: PloS One
https://www.readbyqxmd.com/read/29189693/practice-bulletin-no-187-neural-tube-defects
#7
(no author information available yet)
Neural tube defects (NTDs) are congenital structural abnormalities of the central nervous system and vertebral column. Neural tube defects may occur as an isolated malformation, in combination with other malformations, as part of a genetic syndrome, or as a result of teratogenic exposure (1). Neural tube defects are the second-most-common major congenital anomaly (2) after cardiac malformations, and their prevalence varies by geographic region, race, and environmental factors (3). Outcomes and disabilities depend on level and extent of lesion; for instance, anencephaly is incompatible with life but most infants with spina bifida will survive after surgical repair (4)...
December 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29189691/practice-bulletin-no-187-summary-neural-tube-defects
#8
(no author information available yet)
Neural tube defects (NTDs) are congenital structural abnormalities of the central nervous system and vertebral column. Neural tube defects may occur as an isolated malformation, in combination with other malformations, as part of a genetic syndrome, or as a result of teratogenic exposure (1). Neural tube defects are the second-most-common major congenital anomaly (2) after cardiac malformations, and their prevalence varies by geographic region, race, and environmental factors (3). Outcomes and disabilities depend on level and extent of lesion; for instance, anencephaly is incompatible with life but most infants with spina bifida will survive after surgical repair (4)...
December 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29160184/awareness-use-and-information-sources-of-folic-acid-supplementation-to-prevent-neural-tube-defects-in-pregnant-japanese-women
#9
Shumi Yamamoto, Yoshinao Wada
OBJECTIVE: Folic acid supplementation and folate-rich diets are recommended for women of childbearing age worldwide to prevent congenital anomalies. We aimed to determine the current status of folic acid supplementation among pregnant Japanese women and identify means to increase the intake of these supplements. DESIGN: Cross-sectional study. SUBJECTS: A total of 1862 pregnant women who consulted the perinatal centre from September 2014 to December 2015 completed a questionnaire concerning knowledge about folic acid, sources of information and the use of folic acid supplements...
November 21, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/29133009/periconceptional-maternal-fever-folic-acid-intake-and-the-risk-for-neural-tube-defects
#10
Stephen M Kerr, Samantha E Parker, Allen A Mitchell, Sarah C Tinker, Martha M Werler
PURPOSE: Previous studies have shown an association between maternal fever in early pregnancy and neural tube defects (NTDs) such as spina bifida. Periconceptional folic acid intake has been shown to reduce the risk of these outcomes. METHODS: Using data from the Slone Epidemiology Center Birth Defects Study (1998-2015), we examined the impact of folic acid on the relationship between maternal fever in the periconceptional period (28 days before and after the last menstrual period) and NTDs...
December 2017: Annals of Epidemiology
https://www.readbyqxmd.com/read/29128408/adding-folic-acid-to-corn-masa-flour-partnering-to-improve-pregnancy-outcomes-and-reduce-health-disparities
#11
REVIEW
Alina L Flores, Amy M Cordero, Michael Dunn, Joseph E Sniezek, Miguel A Arce, Krista S Crider, Sarah Tinker, Cynthia Pellegrini, Rita Carreón, Jose Estrada, Sara Struwe, Coleen Boyle
Although strides have been made in preventing neural tube defects (NTDs), Hispanic women remain more likely to have a baby born with an NTD and less likely to know the benefits of, or consume, folic acid than women of other race/ethnic groups. In 1998, the U.S. Food and Drug Administration (FDA) mandated that all enriched cereal grain products be fortified with folic acid; however, corn masa flour (CMF), used to make many corn products that are a diet staple of many Hispanic groups, was not included under this regulation...
November 8, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/29125540/is-high-folic-acid-intake-a-risk-factor-for-autism-a-review
#12
REVIEW
Darrell Wiens, M Catherine DeSoto
Folate is required for metabolic processes and neural development. Insuring its adequate levels for pregnant women through supplementation of grain-based foods with synthetic folic acid (FA) in order to prevent neural tube defects has been an ongoing public health initiative. However, because women are advised to take multivitamins containing FA before and throughout pregnancy, the supplementation together with natural dietary folates has led to a demographic with high and rising serum levels of unmetabolized FA...
November 10, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29125506/should-the-dose-of-folic-acid-be-adjusted-for-mexican-population-the-pilot-prevention-program-implemented-in-nuevo-leon-mexico
#13
Laura E Martinez de Villarreal
In 1980 Smithells et al. reported that the intake of folic acid (FA) prevents the recurrence of neural tube defects (NTDs) [1]. After this and several other studies were conducted, the intake of 400 micrograms of folic acid per day, at least three months before and three months during pregnancy for prevention of NTD, was proposed [2,3,4]. Other strategies were also developed to increase folate blood levels in woman of childbearing age such as promoting the consumption of folate rich foods and food fortification (flour and most recently rice) [5]...
October 20, 2017: Journal of Pediatric Rehabilitation Medicine
https://www.readbyqxmd.com/read/29071735/impact-of-sample-collection-participation-on-the-validity-of-estimated-measures-of-association-in-the-national-birth-defects-prevention-study-when-assessing-gene-environment-interactions
#14
Mary M Jenkins, Jennita Reefhuis, Amy H Herring, Margaret A Honein
To better understand the impact that nonresponse for specimen collection has on the validity of estimates of association, we examined associations between self-reported maternal periconceptional smoking, folic acid use, or pregestational diabetes mellitus and six birth defects among families who did and did not submit buccal cell samples for DNA following a telephone interview as part of the National Birth Defects Prevention Study (NBDPS). Analyses included control families with live born infants who had no birth defects (N = 9,465), families of infants with anorectal atresia or stenosis (N = 873), limb reduction defects (N = 1,037), gastroschisis (N = 1,090), neural tube defects (N = 1,764), orofacial clefts (N = 3,836), or septal heart defects (N = 4,157)...
October 25, 2017: Genetic Epidemiology
https://www.readbyqxmd.com/read/29069810/the-recurrence-risk-of-neural-tube-defects-ntds-in-a-population-with-high-prevalence-of-ntds-in-northern-china
#15
Jufen Liu, Zhiwen Li, Nicholas D E Greene, Hongtian Li, Aiguo Ren
BACKGROUND: Although a number of studies have reported the recurrence risk of NTDs in developed countries, there is little data on the rate of recurrence of NTDs in northern China, a region of high prevalence of NTDs. METHODS: Based on the population-based birth defects surveillance system of five counties, we identified women who had an NTD affected pregnancy from 2004-2015 and a retrospective survey was conducted. The rate of recurrence of NTDs was calculated by the number of recurrent NTDs divided by the first NTDs...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29059388/optimization-of-folic-acid-supplementation-in-the-prevention-of-neural-tube-defects
#16
Shona Cawley, Daniel McCartney, Jayne V Woodside, Mary Rose Sweeney, Robert McDonnell, Anne M Molloy, Michael J Turner
Background: We examined the relationship between timing and duration of folic acid (FA) supplementation in achieving red blood cell (RBC) folate levels in early pregnancy which are optimal (>906 nmol/l) for the prevention of neural tube defects (NTDs). Methods: Clinical, FA supplementation and dietary folate details were computerized at the first antenatal visit. Maternal blood samples were analysed for RBC and serum folate. Results: Of the 502 women, 98...
October 20, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/29056972/methotrexate-and-valproic-acid-affect-early-neurogenesis-of-human-amniotic-fluid-stem-cells-from-myelomeningocele
#17
Vardine Sahakyan, Enrico Pozzo, Robin Duelen, Jan Deprest, Maurilio Sampaolesi
Myelomeningocele (MMC) is a severe type of neural tube defect (NTD), in which the backbone and spinal canal do not close completely during early embryonic development. This condition results in serious morbidity and increased mortality after birth. Folic acid significantly reduces, and conversely, folate antagonist methotrexate (MTX) and valproic acid (VPA) increase the occurrence of NTDs, including MMC. How these pharmacological agents exactly influence the early neurulation process is still largely unclear...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29052470/cautionary-note-about-magnitude-of-decline-in-neural-tube-birth-defects-following-folic-acid-fortification-in-the-united-states
#18
Harvey J Ginsburg, Roque V Mendez, Kelly B Haskar-Zolnierek
No abstract text is available yet for this article.
October 20, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/28980068/a-unique-methylation-pattern-co-segregates-with-neural-tube-defect-statuses-in-han-chinese-pedigrees
#19
Ruiping Zhang, Lirong Cao, Yizheng Wang, Yulian Fang, Linsheng Zhao, Weidong Li, Ou-Yan Shi, Chun-Quan Cai
Neural tube defects (NTDs) are a complex trait associated with gene-environment interactions. Folic acid deficiency and planar cell polarity gene mutations account for some NTD cases; however, the etiology of NTDs is still little understood. In this study, in three Han Chinese NTD pedigrees (two with multiple affected children), with no information on folic acid deficiency or supplement, we examined genome-wide methylation profiles of each individual in these families. We further compared methylation status among cases and normal individuals within the pedigrees...
October 4, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28968208/efficacy-and-stability-studies-of-microbial-folate-fortified-fruit-juices-prepared-using-probiotic-microorganism
#20
S Deep, S Ojha, S Kundu
Folate, natural form of water soluble vitamin folic acid, is significant for humans as involved in most important metabolic reactions i.e. nucleotide synthesis and amino acid inter conversions. Thus its deficiency causes neural tube defects in newborns and cardiovascular diseases, and cancers. Humans cannot synthesize folate de novo so consumption through diet is essential. Natural food sources, supplements and fortified food products are the choices available to complete the Daily recommended intake. However microbial fortification using probiotics recently gained wide attention due to dual advantage of natural food matrix with enhanced folate content along with the probiotics benefits...
July 31, 2017: Cellular and Molecular Biology
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