Birth Defects Research最新文献

{"title":"A global update on the status of prevention of folic acid-preventable spina bifida and anencephaly in year 2022","authors":"Kaustubh Wagh,&nbsp;Vijaya Kancherla,&nbsp;Amanda Dorsey,&nbsp;Helena Pachón,&nbsp;Godfrey P. Oakley Jr","doi":"10.1002/bdr2.2343","DOIUrl":"https://doi.org/10.1002/bdr2.2343","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Mandatory fortification of staple foods with folic acid is an effective public health strategy to prevent folic acid-preventable spina bifida and anencephaly (FAP SBA). We estimated the global proportion of FAP SBA prevented through mandatory folic acid fortification of cereal grains (i.e., wheat flour, maize flour, and rice).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used year 2022 data from the Food Fortification Initiative to identify countries (<i>n</i> = 69) with mandatory fortification of grains that includes folic acid. Sixty-eight countries were eligible for analysis with complete data. Proportion of FAP SBA prevention was modeled assuming &gt;150 mcg/day of folic acid fortification protects against FAP SBA, reducing post-fortification prevalence to a lowest achievable level of 0.5 cases per 1000 births.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our analysis found that a total of 63,520 cases of FAP SBA were prevented in the year 2022 in 68 countries implementing mandatory folic acid fortification of grains with folic acid. This translated to a 23.7% prevention of all possible FAP SBA prevention globally. An excess of 204,430 cases of FAPSBA still occurred in over 100 countries where mandatory staple food fortification with folic acid is not implemented.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Our study showed that only a quarter of all FAP SBA cases were averted through mandatory folic acid fortification in the year 2022; many countries are not implementing the policy, resulting in a large proportion of FAP SBA cases that can be prevented. Fortification will help countries with achieving 2030 Sustainable Development Goals on neonatal- and under-five mortality, disability, stillbirths, and elective terminations prevention, from FAP SBA.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140817260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abstract Supplement","authors":"","doi":"10.1002/bdr2.2344","DOIUrl":"https://doi.org/10.1002/bdr2.2344","url":null,"abstract":"","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 S1","pages":"S1-S92"},"PeriodicalIF":2.1,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140808125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exercise FITT-V during pregnancy: Association with birth outcomes","authors":"Alex Claiborne,&nbsp;Breanna Wisseman,&nbsp;Kara Kern,&nbsp;Dylan Steen,&nbsp;Filip Jevtovic,&nbsp;Samantha McDonald,&nbsp;Cody Strom,&nbsp;Edward Newton,&nbsp;Christy Isler,&nbsp;James Devente,&nbsp;Steven Mouro,&nbsp;David Collier,&nbsp;Devon Kuehn,&nbsp;George A. Kelley,&nbsp;Linda E. May","doi":"10.1002/bdr2.2340","DOIUrl":"https://doi.org/10.1002/bdr2.2340","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Prenatal exercise improves birth outcomes, but research into exercise dose–response effects is limited.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This study is a retrospective, secondary analysis of pooled data from three blinded, prospective, randomized controlled trials. Prenatal exercise frequency, intensity, type, time, and volume (FITT-V) were assessed in supervised sessions throughout pregnancy. Gestational age (GA), neonatal resting heart rate (rHR), morphometrics (body circumferences, weight-to-length and ponderal index) Apgar and reflex scores, and placental measures were obtained at birth. Stepwise regressions and Pearson correlations determined associations between FITT-V and birth outcomes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Prenatal exercise frequency reduces ponderal index (<i>R</i>² = 0.15, <i>F</i> = 2.76, <i>p</i> = .05) and increased total number of reflexes present at birth (<i>R</i>² = 0.24, <i>F</i> = 7.89, <i>p</i> &lt; .001), while exercise intensity was related to greater gestational age and birth length (<i>R</i>² = 0.08, <i>F</i> = 3.14; <i>R</i>² = 0.12, <i>F</i> = 3.86, respectively; both <i>p</i> = .04); exercise weekly volume was associated with shorter hospital stay (<i>R</i>² = 0.24, <i>F</i> = 4.73, <i>p</i> = .01). Furthermore, exercise type was associated with placenta size (<i>R</i>² = 0.47, <i>F</i> = 3.51, <i>p</i> = .01).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Prenatal exercise is positively related to birth and placental outcomes in a dose-dependent manner.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bdr2.2340","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140641851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Comments on “Maternal–fetal safety evaluation of an aqueous extract of Casearia sylvestris [AECS] leaves in rats” (Nagaoka et al., 2023 [DOI: 10.1002/bdr2.2257])”","authors":"","doi":"10.1002/bdr2.2339","DOIUrl":"https://doi.org/10.1002/bdr2.2339","url":null,"abstract":"<p>\u0000 <span>Wise, L.D.</span> and <span>DeSesso, J.M.</span> (<span>2024</span>), <span><b>Comments on “Maternal–fetal safety evaluation of an aqueous extract of</b> <b><i>Casearia sylvestris</i></b> <b>[AECS] leaves in rats” (Nagaoka et al., 2023 [DOI: 10.1002bdr2.2257])</b></span>. <i>Birth Defects Research</i>, <span>116</span>: e2326. https://doi.org/10.1002/bdr2.2326\u0000 </p><p>In the originally published article, the authors would like to update the following sentence in section 3c: Increases were quite small and the slight decreases in female fetal weights may have been a contributing factor (e.g., 2.1% decrease in absolute male AGD, Clark et al., 1990); however, as in that case, the effect may not be biologically significant.</p><p>The updated sentence is:</p><p>Increases were quite small and the slight decreases in female fetal weights may have been a contributing factor. Slight changes in AGD can be statistically significant (e.g., 2.1% decrease in absolute male AGD, Clark et al., 1990); however, as in that case, the effect may not be biologically significant.</p><p>We apologize for this error.</p>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bdr2.2339","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140633757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-mortem rapid aneuploidy testing for holoprosencephaly","authors":"Lajos Gergely,&nbsp;Vanda Repiská,&nbsp;Daniel Böhmer,&nbsp;Miroslav Korbeľ,&nbsp;Zuzana Václavová,&nbsp;Liam McCullough,&nbsp;Katarína Melišová,&nbsp;Petra Priščáková","doi":"10.1002/bdr2.2342","DOIUrl":"https://doi.org/10.1002/bdr2.2342","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Abortion and fetal death are common in fetuses with holoprosencephaly, so genetic examinations often have to be made in a post-mortem setting. The efficiency of the conventional karyotyping using cultured fibroblasts in these situations is limited due to frequent culture failure. In the current study, archived cases of holoprosencephaly, where post-mortem genetic evaluation was requested and sufficient frozen material was available, were reevaluated using the quantitative fluorescence polymerase chain reaction (QF-PCR) technique.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Testing for aneuploidies of chromosomes 13, 15, 16, 18, 21, 22, X, and Y with the QF-PCR technique was carried out on DNA isolated from archived frozen chorionic villi in seven cases of holoprosencephaly.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>QF-PCR was successful in all seven cases. Two cases of trisomy 13, two cases of triploidy, and one case of trisomy 18 was found meaning a 71% diagnostic yield. The success rate of QF-PCR (100%, 7/7) was superior compared to conventional karyotyping (43%, 3/7).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Rapid aneuploidy testing using the QF-PCR technique is a simple, reliable, time- and cost-effective method sufficient to conclude the etiologic investigation in the majority of holoprosencephaly cases post-mortem.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140606229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The prenatal use of agmatine prevents social behavior deficits in VPA-exposed mice by activating the ERK/CREB/BDNF signaling pathway","authors":"Shihao Chen,&nbsp;Qi Xu,&nbsp;Linqian Zhao,&nbsp;Mulan Zhang,&nbsp;Huiqin Xu","doi":"10.1002/bdr2.2336","DOIUrl":"https://doi.org/10.1002/bdr2.2336","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>According to reports, prenatal exposure to valproic acid can induce autism spectrum disorder (ASD)-like symptoms in both humans and rodents. However, the exact cause and therapeutic method of ASD is not fully understood. Agmatine (AGM) is known for its neuroprotective effects, and this study aims to explore whether giving agmatine hydrochloride before birth can prevent autism-like behaviors in mouse offspring exposed prenatally to valproic acid.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>In this study, we investigated the effects of AGM prenatally on valproate (VPA)-exposed mice. We established a mouse model of ASD by prenatally administering VPA. From birth to weaning, we evaluated mouse behavior using the marble burying test, open-field test, and three-chamber social interaction test on male offspring.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The results showed prenatal use of AGM relieved anxiety and hyperactivity behaviors as well as ameliorated sociability of VPA-exposed mice in the marble burying test, open-field test, and three-chamber social interaction test, and this protective effect might be attributed to the activation of the ERK/CREB/BDNF signaling pathway.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Therefore, AGM can effectively reduce the likelihood of offspring developing autism to a certain extent when exposed to VPA during pregnancy, serving as a potential therapeutic drug.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140556382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological and environmental factors influencing reproductive performance in ICR mice, Mus musculus","authors":"Toyohito Tanaka","doi":"10.1002/bdr2.2337","DOIUrl":"https://doi.org/10.1002/bdr2.2337","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Since strain names and breeding facilities of ICR mice used in 37 reproductive toxicity studies have changed from 1990 to 2022 in our laboratory, biological and environmental factors that affect reproductive parameters were investigated in control mice to examine the validity of the background data.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Litter size and sex ratio were measured at birth [postnatal day (PND) 0], while offspring body weight was measured on PND 0 and 21 during the lactation. The relationships between biological and environmental factors and reproductive parameters were assessed with multiple regression analysis using stepwise regression as an explanatory variable selection strategy. The biological factors of litter size at birth, secondary sex ratio (male%), body weight (g) at birth and strain name, and environmental factors of facilities (room), temperature/humidity, and bedding materials were used as explanatory variables, and reproductive parameters of litter size at birth, secondary sex ratio (male%), body weight (g) at birth, and survival index (%) of offspring at PND 21 were used as response variables.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>No significant effects were indicated in litter size and sex ratio (male %) with any biological and environmental factors. Male and female offspring weights were significantly affected by strain names. No significant effects were indicated in the survival index (%) at PND 21 in both sexes with any biological and environmental factors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Litter size and sex ratio in this report are sufficient as background data throughout the period because no significant variables of biological and environmental factors affected litter size and gender composition.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140550062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The timing, duration, and severity of nausea and vomiting of pregnancy and adverse birth outcomes among controls without birth defects in the National Birth Defects Prevention Study","authors":"Nina L. Schrager,&nbsp;Samantha E. Parker,&nbsp;Martha M. Werler,&nbsp;for the National Birth Defects Prevention Study","doi":"10.1002/bdr2.2334","DOIUrl":"https://doi.org/10.1002/bdr2.2334","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Nausea and vomiting of pregnancy (NVP) occurs in approximately 70% of pregnant people, with varying severity and duration. Treatments include pharmacologic and herbal/natural medications. The associations between NVP and birth outcomes, including preterm birth, small for gestational age (SGA), and low birth weight are inconclusive.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To determine whether NVP and reported medications are associated with adverse birth outcomes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used data from the population-based, multisite National Birth Defects Prevention Study (1997–2011) to evaluate whether self-reported NVP according to timing, duration, and severity or its specific treatments were associated with preterm birth, SGA, and low birth weight among controls without birth defects. Odds ratios (aOR) and 95% confidence intervals (CI) were adjusted for sociodemographic, reproductive, and medical factors. For any NVP, duration, treatment use, and severity score analyses, the comparison group was participants with no reported NVP. For timing analyses, the comparison group was women with no reported NVP in the same trimester of pregnancy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Among 6018 participants, 4339 (72.1%) reported any NVP. Among those with NVP, moderate or severe symptoms were more common than mild symptoms. Any versus no NVP was not associated with any of the outcomes of interest. NVP in months 4–6 (aOR 1.21, 95% CI: 1.00, 1.47) and 7–9 (aOR 1.57, 95% CI: 1.22, 2.01) of pregnancy were associated with an increase in the risk of preterm birth. NVP lasting one trimester in duration was associated with decrease in risk of SGA (aOR: 0.74, 95% CI: 0.58, 0.95), and NVP present in every trimester of pregnancy had a 50% increase in risk of preterm birth (aOR: 1.50, 95% CI: 1.11, 2.05). For NVP in months 7–9 and preterm birth, ORs were elevated for moderate (aOR: 1.82, 95% CI: 1.26, 2.63), and severe (aOR: 1.53, 95% CI: 1.06, 2.19) symptoms. NVP was not significantly associated with low birth weight. Our analyses of medications were limited by small numbers, but none suggested increased risk of adverse outcomes associated with use of the medication.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Mild NVP and NVP limited to early pregnancy appear to have no effect or a small protective effect on birth outcomes. Long-lasting NVP, severe NVP, and NVP later in pregnancy may increase risk of preterm birth and SGA.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140351694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sex-dependent alterations of inflammatory factors, oxidative stress, and histopathology of the brain-gut axis in a VPA-induced autistic-like model of rats","authors":"Zahra Salari,&nbsp;Amirhossein Moslemizadeh,&nbsp;Sara Sheibani Tezerji,&nbsp;Nazanin Sabet,&nbsp;Ali Saeidpour Parizi,&nbsp;Mohammad Khaksari,&nbsp;Vahid Sheibani,&nbsp;Elham Jafari,&nbsp;Sara Shafieipour,&nbsp;Hamideh Bashiri","doi":"10.1002/bdr2.2310","DOIUrl":"10.1002/bdr2.2310","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>In this study, we aimed to investigate the inflammatory factors, oxidative stress, and histopathological consequences of the brain-gut axis in male and female rats prenatally exposed to VPA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Pregnant Wistar rats were randomly divided into two groups. The animals received saline, and valproic acid (VPA) (600 mg/kg, i.p.) on embryonic day 12.5 (E12.5). All offspring were weaned on postnatal day 21, and the experiments were done in male and female rats on day 60. The brain and intestine tissues were extracted to assess histopathology, inflammation, and oxidative stress.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>An increase of interleukin-1β (IL-1β) and interleukin-6 (IL-6) and a decrease of interleukin-10 (IL-10) were observed in the two sexes and two tissues of the autistic rats. In the VPA-exposed animals, malondialdehyde (MDA) and protein carbonyl (PC) increased in the brain of both sexes and the intestines of only the males. The total antioxidant capacity (TAC), superoxide dismutase (SOD), and catalase (CAT) significantly decreased in both tissues of male and female autistic groups. Histopathological evaluation showed that the %apoptosis of the cortex in the autistic male and female groups was more than in controls whereas this parameter in the CA1 and CA3 was significant only in the male rats. In the intestine, histopathologic changes were seen only in the male autistic animals.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The inflammatory and antioxidant factors were in line in the brain-gut axis in male and female rats prenatally exposed to VPA. Histopathological consequences were more significant in the VPA-exposed male animals.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140334661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Folate and vitamin B12 status and predicted neural tube defects risk among nonpregnant women of reproductive age from the Malawi National Micronutrient Survey, 2015–2016","authors":"Yan Ping Qi,&nbsp;Krista S. Crider,&nbsp;Anne M. Williams,&nbsp;Katie Tripp,&nbsp;Carine Mapango,&nbsp;Elizabeth C. Rhodes,&nbsp;Eunice Nyirenda,&nbsp;Felix Phiri,&nbsp;Mindy Zhang,&nbsp;Shameem Jabbar,&nbsp;Christine M. Pfeiffer,&nbsp;Helena Pachón,&nbsp;Sarah Zimmerman,&nbsp;Jennifer L. Williams","doi":"10.1002/bdr2.2329","DOIUrl":"10.1002/bdr2.2329","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Maternal folate and vitamin B₁₂ deficiency can lead to serious adverse pregnancy outcomes. There are no nationally representative estimates on folate and vitamin B₁₂ status among women of reproductive age (WRA) in Malawi.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>We assessed folate and vitamin B₁₂ status among nonpregnant WRA in Malawi and predicted the risk of folate-sensitive neural tube defects (NTDs) were they to become pregnant.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using data from the cross-sectional, nationally representative 2015–2016 Malawi Micronutrient Survey, we calculated the proportion of folate and vitamin B₁₂ deficiency and insufficiency by demographic characteristics among 778 nonpregnant WRA (15–49 years). We predicted NTD prevalence using red blood cell (RBC) folate distributions and a published Bayesian model of the association between RBC folate and NTD risk. Analyses accounted for complex survey design.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Among WRA, 8.5% (95% CI: 6.2, 11.6) and 13.3% (10.0, 17.4) had serum (&lt;7 nmol/L) and RBC folate (&lt;305 nmol/L) deficiency, respectively. The proportion of vitamin B₁₂ deficiency (&lt;148 pmol/L) and insufficiency (≤221 pmol/L) was 11.8% (8.6, 16.0) and 40.6% (34.1, 47.4), respectively. RBC folate insufficiency (&lt;748 nmol/L, defined as the concentration associated with the threshold for elevated NTD risk: &gt;8 cases per 10,000 births) was widespread: 81.4% (75.0, 86.4). The predicted NTD risk nationally was 24.7 cases per 10,000 live births. RBC folate insufficiency and higher predicted NTD risk were more common among WRA living in urban areas or with higher education.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>These findings highlight the importance of nutritional and NTD surveillance in Malawi and the opportunity for improving folate and vitamin B₁₂ nutrition among Malawian WRA.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9121,"journal":{"name":"Birth Defects Research","volume":"116 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140206359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}