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vitamin a pregnancy

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https://www.readbyqxmd.com/read/28337028/modifiable-risk-factors-of-maternal-postpartum-weight-retention-an-analysis-of-their-combined-impact-and-potential-opportunities-for-prevention
#1
J L Hollis, S R Crozier, H M Inskip, C Cooper, K M Godfrey, N C Harvey, C E Collins, S M Robinson
BACKGROUND/OBJECTIVES: Pregnancy triggers a physiological change in weight status. Postpartum weight retention in the childbearing years can substantially alter a woman's weight gain trajectory, with several potential contributing factors identified. Most research has relied on women's recall of pre-pregnancy weight during pregnancy or later, and not considered risk factors in combination. Using measured pre-pregnancy weight, this study aimed to examine the associations of maternal postpartum weight retention with parity, pre-pregnancy BMI, excessive gestational weight gain (GWG), maternal serum vitamin D concentration and dietary Glycaemic Index in early and late pregnancy and breastfeeding duration, including analysis of the combined impact of potentially modifiable risk factors...
March 24, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28333357/dietary-patterns-foods-and-nutrients-in-male-fertility-parameters-and-fecundability-a-systematic-review-of-observational-studies
#2
Albert Salas-Huetos, Mònica Bulló, Jordi Salas-Salvadó
BACKGROUND: Infertility is a global public health issue, affecting 15% of all couples of reproductive age. Male factors, including decreased semen quality, are responsible for ~25% of these cases. The dietary pattern, the components of the diet and nutrients have been studied as possible determinants of sperm function and/or fertility. OBJECTIVE AND RATIONALE: Previous systematic reviews have been made of the few heterogeneous low-quality randomized clinical trials (RCTs) conducted in small samples of participants and investigating the effect of specific nutrients and nutritional supplements on male infertility...
March 10, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333089/south-asian-ethnicity-is-related-to-the-highest-risk-of-vitamin-b12-deficiency-in-pregnant-canadian-women
#3
Marta Jeruszka-Bielak, Carly Isman, Theresa H Schroder, Wangyang Li, Tim J Green, Yvonne Lamers
Vitamin B12 (B12) adequacy during pregnancy is crucial for maternal health and optimal fetal development; however, suboptimal B12 status has been reported in pregnant Canadian women. Methylmalonic acid (MMA) is a sensitive indicator of B12 status. Since few studies have measured MMA during pregnancy in Canadian women, the objective of this study was to evaluate B12 status in pregnant women living in Metro Vancouver, using both plasma total B12 and MMA. We recruited a convenience sample of 320 pregnant women between 20 and 35 gestational weeks from local healthcare facilities...
March 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28332868/is-autoimmunology-a-discipline-of-its-own-a-big-data-based-bibliometric-and-scientometric-analyses
#4
Abdulla Watad, Nicola Luigi Bragazzi, Mohammad Adawi, Howard Amital, Shaye Kivity, Naim Mahroum, Miri Blank, Yehuda Shoenfeld
Autoimmunology is a super-specialty of immunology specifically dealing with autoimmune disorders. To assess the extant literature concerning autoimmune disorders, bibliometric and scientometric analyses (namely, research topics/keywords co-occurrence, journal co-citation, citations, and scientific output trends - both crude and normalized, authors network, leading authors, countries, and organizations analysis) were carried out using open-source software, namely, VOSviewer and SciCurve. A corpus of 169,519 articles containing the keyword "autoimmunity" was utilized, selecting PubMed/MEDLINE as bibliographic thesaurus...
March 23, 2017: Autoimmunity
https://www.readbyqxmd.com/read/28331572/environmental-risk-factors-for-autism-an-evidence-based-review-of-systematic-reviews-and-meta-analyses
#5
REVIEW
Amirhossein Modabbernia, Eva Velthorst, Abraham Reichenberg
BACKGROUND: According to recent evidence, up to 40-50% of variance in autism spectrum disorder (ASD) liability might be determined by environmental factors. In the present paper, we conducted a review of systematic reviews and meta-analyses of environmental risk factors for ASD. We assessed each review for quality of evidence and provided a brief overview of putative mechanisms of environmental risk factors for ASD. FINDINGS: Current evidence suggests that several environmental factors including vaccination, maternal smoking, thimerosal exposure, and most likely assisted reproductive technologies are unrelated to risk of ASD...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28329059/anticoagulation-for-pregnant-women-with-mechanical-heart-valves-a-systematic-review-and-meta-analysis
#6
Rohan D'Souza, Jackie Ostro, Prakesh S Shah, Candice K Silversides, Ann Malinowski, Kellie E Murphy, Mathew Sermer, Nadine Shehata
Aims: To review maternal and foetal outcomes in women with mechanical heart valves (MHVs) treated with vitamin-K antagonists (VKAs), first-trimester heparin followed by VKAs (sequential treatment), low molecular weight heparin (LMWH) and unfractionated heparin (UFH) during pregnancy, in order to inform practice. Methods and results: Medline, Embase and Central were searched from inception until February 2016. Two reviewers independently screened 1786 titles, reviewed 110 full-texts and extracted data and assessed risk-of-bias from 46 articles...
March 9, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28320597/racial-or-ethnic-and-socioeconomic-inequalities-in-adherence-to-national-dietary-guidance-in-a-large-cohort-of-us-pregnant-women
#7
Lisa M Bodnar, Hyagriv N Simhan, Corette B Parker, Heather Meier, Brian M Mercer, William A Grobman, David M Haas, Deborah A Wing, Matthew K Hoffman, Samuel Parry, Robert M Silver, George R Saade, Ronald Wapner, Jay D Iams, Pathik D Wadhwa, Michal Elovitz, Alan M Peaceman, Sean Esplin, Shannon Barnes, Uma M Reddy
BACKGROUND: The significance of periconceptional nutrition for optimizing offspring and maternal health and reducing social inequalities warrants greater understanding of diet quality among US women. OBJECTIVE: Our objective was to evaluate racial or ethnic and education inequalities in periconceptional diet quality and sources of energy and micronutrients. DESIGN: Cross-sectional analysis of data from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be cohort...
March 14, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28320484/nutritional-intervention-preconception-and-during-pregnancy-to-maintain-healthy-glucose-metabolism-and-offspring-health-nipper-study-protocol-for-a-randomised-controlled-trial
#8
Keith M Godfrey, Wayne Cutfield, Shiao-Yng Chan, Philip N Baker, Yap-Seng Chong
BACKGROUND: Improved maternal nutrition and glycaemic control before and during pregnancy are thought to benefit the health of the mother, with consequent benefits for infant body composition and later obesity risk. Maternal insulin resistance and glycaemia around conception and in early pregnancy may be key determinants of maternal physiology and placental function, affecting fetal nutrient supply and maternal-feto-placental communications throughout gestation, with implications for later postnatal health...
March 20, 2017: Trials
https://www.readbyqxmd.com/read/28316773/vitamin-d-treatment-during-pregnancy-prevents-autism-related-phenotypes-in-a-mouse-model-of-maternal-immune-activation
#9
Stephanie Vuillermot, Wei Luan, Urs Meyer, Darryl Eyles
BACKGROUND: Prenatal exposure to infection is a recognized environmental risk factor for neuropsychiatric disorders of developmental origins such as autism or schizophrenia. Experimental work in animals indicates that this link is mediated by maternal immune activation (MIA) involving interactions between cytokine-associated inflammatory events, oxidative stress, and other pathophysiological processes such as hypoferremia and zinc deficiency. Maternal administration of the viral mimic polyriboinosinic-polyribocytidylic acid (poly(I:C)) in mice produces several behavioral phenotypes in adult offspring of relevance to autism spectrum disorder (ASD) and other neurodevelopmental disorders...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28306725/maternal-vitamin-d-insufficiency-and-risk-of-adverse-pregnancy-and-birth-outcomes-a-systematic-review-and-meta-analysis-of-longitudinal-studies
#10
A Kofi Amegah, Moses K Klevor, Carol L Wagner
BACKGROUND: Three previous reviews on the association of vitamin D insufficiency in pregnancy with preterm birth (PTB) and stillbirth were limited in scope and deemed inconclusive. With important new evidence accumulating, there is the need to update the previous estimates and assess evidence on other clinically important outcomes such as spontaneous abortion and Apgar score. We conducted a systematic review and meta-analysis to evaluate the quality and strength of the available evidence on the relations between vitamin D nutritional status, and pregnancy and birth outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28291591/the-inma-infancia-y-medio-ambiente-environment-and-childhood-project-more-than-10-years-contributing-to-environmental-and-neuropsychological-research
#11
REVIEW
Mireia Gascon, Mònica Guxens, Martine Vrijheid, Maties Torrent, Jesús Ibarluzea, Eduardo Fano, Sabrina Llop, Ferran Ballester, Mariana F Fernández, Adonina Tardón, Ana Fernández-Somoano, Jordi Sunyer
BACKGROUND: In 2003 the INMA-INfancia y Medio Ambiente (Environment and Childhood) project, a Spanish national network of birth cohorts including more than 3500 participants, was set up with the aim to assess the health impacts of pre- and postnatal environmental exposures on children. The project has published more than 60 papers on maternal and environmental factors related to neuropsychological development in children, one of the main research interests within the project. With the present review, we evaluate the evidence provided by the INMA project on this topic and discuss how the data can contribute to cover the challenges that children's environmental health research will face in the coming years...
February 28, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28290648/deep-venous-thrombosis-and-pulmonary-embolism-current-therapy
#12
Jason Wilbur, Brian Shian
Pulmonary embolism and deep venous thrombosis are the two most important manifestations of venous thromboembolism (VTE), which is the third most common life-threatening cardiovascular disease in the United States. Anticoagulation is the mainstay of VTE treatment. Most patients with deep venous thrombosis or low-risk pulmonary embolism can be treated in the outpatient setting with low-molecular-weight heparin and a vitamin K antagonist (warfarin) or direct-acting oral anticoagulants. Inpatient treatment of VTE begins with parenteral agents, preferably low-molecular-weight heparin...
March 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28288159/determinants-of-anemia-among-pregnant-mothers-attending-antenatal-care-in-dessie-town-health-facilities-northern-central-ethiopia-unmatched-case-control-study
#13
Sisay Eshete Tadesse, Omer Seid, Yemane G/Mariam, Abel Fekadu, Yitbarek Wasihun, Kedir Endris, Abebayehu Bitew
INTRODUCTION: Anemia affects around 38.2% and 22% of pregnant women at a global and national level respectively. In developing countries, women start pregnancy with already depleted body stores of iron and other vitamins with significant variation of anemia within and between regions. OBJECTIVE: To identify the determinants of anemia among pregnant mothers attending antenatal care in Dessie town health facilities, northern central Ethiopia. METHODS: A health facility based unmatched case control study was conducted among 112 cases and 336 controls from January to March 2016 G...
2017: PloS One
https://www.readbyqxmd.com/read/28287490/correlations-between-maternal-breast-milk-and-infant-vitamin-b12-concentrations-among-mother-infant-dyads-in-vancouver-canada-and-prey-veng-cambodia-an-exploratory-analysis
#14
Philip Chebaya, Crystal D Karakochuk, Kaitlin M March, Nancy N Chen, Rosemary A Stamm, Hou Kroeun, Prak Sophonneary, Mam Borath, Setareh Shahab-Ferdows, Daniela Hampel, Susan I Barr, Yvonne Lamers, Lisa A Houghton, Lindsay H Allen, Tim J Green, Kyly C Whitfield
Vitamin B12 plays an essential role in fetal and infant development. In regions where animal source food consumption is low and perinatal supplementation is uncommon, infants are at risk of vitamin B12 deficiency. In this secondary analysis, we measured total vitamin B12 concentrations in maternal and infant serum/plasma and breast milk among two samples of mother-infant dyads in Canada (assessed at 8 weeks post-partum) and in Cambodia (assessed between 3-27 weeks post-partum). Canadian mothers (n = 124) consumed a daily vitamin B12-containing multiple micronutrient supplement throughout pregnancy and lactation; Cambodian mothers (n = 69) were unsupplemented...
March 12, 2017: Nutrients
https://www.readbyqxmd.com/read/28287422/prevalence-of-vitamin-d-deficiency-and-its-associations-with-skin-color-in-pregnant-women-in-the-first-trimester-in-a-sample-from-switzerland
#15
Aline Richard, Sabine Rohrmann, Katharina C Quack Lötscher
Vitamin D deficiency in pregnancy has negative clinical consequences, such as associations with glucose intolerance, and has been shown to be distributed differently in certain ethnic groups. In some countries, a difference in the rate of vitamin D deficiency was detected in pregnant women depending on their skin color. We examined the prevalence of vitamin D deficiency (<20 ng/mL) in women in early pregnancy in Switzerland and evaluated the association of skin color with vitamin D deficiency. In a single-center cohort study, the validated Fitzpatrick scale and objective melanin index were used to determine skin color...
March 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28285844/vitamin-d-supplementation-in-pregnancy-prenatal-25-oh-d-levels-race-and-subsequent-asthma-or-recurrent-wheeze-in-offspring-secondary-analyses-from-the-vitamin-d-antenatal-asthma-reduction-trial
#16
Helene M Wolsk, Benjamin J Harshfield, Nancy Laranjo, Vincent J Carey, George O'Connor, Megan Sandel, Robert C Strunk, Leonard B Bacharier, Robert S Zeiger, Michael Schatz, Bruce W Hollis, Scott T Weiss, Augusto A Litonjua
BACKGROUND: Nutrient trials differ from drug trials because participants have varying circulating levels at entry into the trial. OBJECTIVE: We sought to study the effect of a vitamin D intervention in pregnancy between subjects of different races and the association between 25-hydroxyvitamin D3 (25[OH]D) levels in pregnancy and the risk of asthma/recurrent wheeze in offspring. METHODS: The Vitamin D Antenatal Asthma Reduction Trial is a randomized trial of pregnant women at risk of having children with asthma randomized to 4400 international units/d vitamin D or placebo plus 400 international units/d vitamin D...
March 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28278524/management-of-thrombotic-antiphospholipid-syndrome
#17
Cecilia Beatrice Chighizola, Maria Gabriella Raimondo, Pier Luigi Meroni
Persistent serum positivity for antiphospholipid antibodies (aPL) is required to diagnose antiphospholipid syndrome (APS), an autoimmune disease characterized by recurrent vascular thrombosis and/or pregnancy morbidity. The current therapeutic management of patients with thrombotic APS aims at preventing recurrences and long-term complications by attenuating the procoagulant state. There is overall consensus to reserve moderate-intensity anticoagulation to aPL-positive patients with a previous venous thrombosis; the therapeutic options for those with a history of arterial event comprise antiplatelet agents and high-intensity anticoagulation...
March 9, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28275100/maternal-supplementation-with-small-quantity-lipid-based-nutrient-supplements-compared-with-multiple-micronutrients-but-not-with-iron-and-folic-acid-reduces-the-prevalence-of-low-gestational-weight-gain-in-semi-urban-ghana-a-randomized-controlled-trial
#18
Seth Adu-Afarwuah, Anna Lartey, Harriet Okronipa, Per Ashorn, Ulla Ashorn, Mamane Zeilani, Mary Arimond, Stephen A Vosti, Kathryn G Dewey
Background: It is unclear whether maternal supplementation with small-quantity lipid-based nutrient supplements (SQ-LNSs; 118 kcal/d) affects maternal weight.Objective: We compared several secondary anthropometric measures between 3 groups of women in the iLiNS (International Lipid-based Nutrient Supplements)-DYAD trial in Ghana.Methods: Women (n = 1320; <20 wk of gestation) were randomly assigned to receive 60 mg Fe + 400 μg folic acid/d (IFA), 18 vitamins and minerals/d [multiple micronutrients (MMNs)], or 20 g SQ-LNSs with 22 micronutrients/d (LNS) during pregnancy and a placebo (200 mg Ca/d), MMNs, or SQ-LNSs, respectively, for 6 mo postpartum...
March 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28264782/pregnancy-outcome-and-ultraviolet-radiation-a-systematic-review
#19
REVIEW
Lauren Megaw, Tom Clemens, Chris Dibben, Richard Weller, Sarah Stock
BACKGROUND: Season and vitamin D are indirect and direct correlates of ultraviolet (UV) radiation and are associated with pregnancy outcomes. Further to producing vitamin D, UV has positive effects on cardiovascular and immune health that may support a role for UV directly benefitting pregnancy. OBJECTIVES: To investigate the effects of UV exposure on pregnancy; specifically fetal growth, preterm birth and hypertensive complications. METHODS: We conducted a systematic review of Medline, EMBASE, DoPHER, Global Health, ProQuest Public Health, AustHealth Informit, SCOPUS and Google Scholar to identify 537 citations, 8 of which are included in this review...
May 2017: Environmental Research
https://www.readbyqxmd.com/read/28262384/influence-of-seafood-and-vitamin-supplementation-on-maternal-and-umbilical-cord-blood-mercury-concentration
#20
Shih-Hui Huang, Ken-Pen Weng, Luo-Ping Ger, Huei Han Liou, Ching-Chiang Lin, Chung-Cheng Wang, Charles Tzu-Chi Lee, Ming-Tsang Wu
BACKGROUND: The purpose of this study was to examine the influence of maternal seafood consumption and vitamin supplementation during pregnancy on maternal and umbilical cord blood mercury (Hg) concentration. METHODS: In this study of 145 healthy pregnant women (mean age 28.1±5.2 years), we administered questionnaires, collected paired maternal/umbilical cord blood samples, and measured the anthropometrics of newborns. Blood Hg concentration was assayed by inductively coupled plasma-mass spectrometry...
March 2, 2017: Journal of the Chinese Medical Association: JCMA
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