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Vitamin D in pregnancy

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https://www.readbyqxmd.com/read/28214921/vitamin-d-administration-during-pregnancy-as-prevention-for-pregnancy-neonatal-and-postnatal-complications
#1
REVIEW
Carol L Wagner, Bruce W Hollis, Kalliopi Kotsa, Hana Fakhoury, Spyridon N Karras
Pregnancy represents a time of rapid bodily change, which includes physical proportions, physiology and responsibility. At this context, maternal vitamin D stores have been the objective of extensive scientific research during the last decades, focusing on their potential effects on maternal an neonatal health. A growing body of observational studies indicated that maternal hypovitaminosis D (as defined by maternal 25-hydroxyvitamin D [25(OH)D] levels <20 ng/ml or <50 nmol/l) is a significant risk factor for adverse neonatal outcomes including asthma, multiple sclerosis and other neurological disorders...
February 18, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28213594/brighter-children-the-association-between-seasonality-of-birth-and-child-iq-in-a-population-based-birth-cohort
#2
Nina H Grootendorst-van Mil, Régine P M Steegers-Theunissen, Albert Hofman, Vincent W V Jaddoe, Frank C Verhulst, Henning Tiemeier
OBJECTIVE: Season of birth has repeatedly been found to be a risk indicator for adverse neurodevelopmental outcomes. Several explanations for this finding have been put forward but no conclusion has been reached. In the current study, we explored the role of sociodemographic and biological factors in the association between season of birth and child IQ. DESIGN: In a prenatally recruited birth cohort (born in 2002-2006), we examined the association between season of birth and non-verbal IQ at age 6 years among 6034 children...
February 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28202290/effect-of-psychotropic-drug-treatment-on-sterol-metabolism
#3
Željka Korade, Wei Liu, Emily B Warren, Kristan Armstrong, Ned A Porter, Christine Konradi
Cholesterol metabolism is vital for brain function. Previous work in cultured cells has shown that a number of psychotropic drugs inhibit the activity of 7-dehydrocholesterol reductase (DHCR7), an enzyme that catalyzes the final steps in cholesterol biosynthesis. This leads to the accumulation of 7-dehydrocholesterol (7DHC), a molecule that gives rise to oxysterols, vitamin D, and atypical neurosteroids. We examined levels of cholesterol and the cholesterol precursors desmosterol, lanosterol, 7DHC and its isomer 8-dehydrocholesterol (8DHC), in blood samples of 123 psychiatric patients on various antipsychotic and antidepressant drugs, and 85 healthy controls, to see if the observations in cell lines hold true for patients as well...
February 12, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28188842/vitamin-d-supplementation-during-pregnancy-improvements-in-birth-outcomes-and-complications-through-direct-genomic-alteration
#4
REVIEW
Bruce W Hollis, Carol L Wagner
Pregnancy represents a time of rapid change, including dramatic shifts in vitamin D metabolism. Circulating concentrations of the active form of vitamin D-1,25(OH)2D skyrocket early in pregnancy to levels that would be toxic to a nonpregnant adult, signaling a decoupling of vitamin D from the classic endocrine calcium metabolic pathway, likely serving an immunomodulatory function in the mother and her developing fetus. In this review, we summarize the unique aspects of vitamin D metabolism and the data surrounding vitamin D requirements during this important period...
February 7, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28169608/vitamin-d-deficiency-in-pregnant-ukrainian-women-effects-of-alcohol-consumption-on-vitamin-d-status
#5
Charles R Carlson, Janet Y Uriu-Adams, Christina D Chambers, Lyubov Yevtushok, Natalya Zymak-Zakutnya, Priscilla H Chan, Jordan J Schafer, Wladimir Wertelecki, Carl L Keen
OBJECTIVE: Heavy alcohol consumption can alter vitamin D status; however, the relationships between alcohol consumption and vitamin D concentrations in pregnant women have not been well studied. The aim of this study was to investigate the vitamin D status in a population of alcohol-exposed (N = 180) and low/unexposed control (N = 179) Ukrainian pregnant women. METHODS: Women who attended prenatal care facilities in 2 regions of Ukraine (Rivne and Khmelnytsky) for a routine prenatal visit were screened for the study...
January 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28166924/-lifestyle-recommendations-for-prevention-of-spontaneous-preterm-birth-in-asymptomatic-pregnant-women
#6
E Maisonneuve
OBJECTIVES: To establish recommendations for lifestyle of pregnant women and its impact on spontaneous preterm births. MATERIAL AND METHODS: We searched Pubmed and Cochrane databases and checked reference lists of retrieved studies. This review of the literature concerns only women who have no symptoms for the ongoing pregnancy. RESULTS: Concerning maternal occupation during pregnancy, there is a mild increase of the risk of preterm birth only for women who work more than 40hours a week or who have hard working conditions according to a fatigue score (LE2)...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/28161177/influence-of-conjugated-linoleic-acid-and-vitamin-e-on-performance-energy-metabolism-and-change-of-fat-depot-mass-in-transitional-dairy-cows
#7
S Schäfers, D von Soosten, U Meyer, C Drong, J Frahm, J Kluess, C Raschka, J Rehage, A Tröscher, W Pelletier, S Dänicke
The objective of this experiment was to determine the effects of conjugated linoleic acid (CLA) and vitamin E as well as their interaction on performance variables and lipomobilization during late pregnancy and early lactation (wk 6 antepartum until wk 10 postpartum). For this purpose, 59 pluriparous German Holstein cows were assigned to 4 dietary groups in a 2 × 2 design with the factors CLA and vitamin E at 2 levels. For this trial, we selected cows with a high body condition score because they are more likely to mobilize fat and consequently are at a higher risk of developing ketosis...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28161065/placental-genetic-variations-in-vitamin-d-metabolism-and-birthweight
#8
Tsegaselassie Workalemahu, Sylvia E Badon, Michal Dishi-Galitzky, Chunfang Qiu, Michelle A Williams, Tanya Sorensen, Daniel A Enquobahrie
INTRODUCTION: Vitamin D has pleiotropic functions that regulate fetal growth and development. We investigated associations of common placental genetic variations in vitamin D metabolism with birthweight. METHODS: The study was conducted among participants (506 maternal-infant pairs) of a pregnancy cohort study. Data were collected using interviewer-administered questionnaires and post-delivery medical record abstraction. DNA, extracted from placental samples collected at delivery, was genotyped for eight single nucleotide polymorphisms (SNPs) in five vitamin D metabolism genes (CUBN, LRP2, VDR, GC, and CYP2R1)...
February 2017: Placenta
https://www.readbyqxmd.com/read/28161064/dysregulation-of-maternal-and-placental-vitamin-d-metabolism-in-preeclampsia
#9
J A Tamblyn, R Susarla, C Jenkinson, L E Jeffery, O Ohizua, R F Chun, S Y Chan, M D Kilby, M Hewison
INTRODUCTION: Epidemiology has linked preeclampsia (PET) to decreased maternal serum 25-hydroxyvitamin D3 (25(OH)D3). However, alterations in systemic and placental/decidual transport and metabolism of 25(OH)D3 during pregnancy suggest that other forms of vitamin D may also contribute to the pathophysiology of PET. METHODS: In a cross sectional analysis of normal pregnant women at 1st (n = 25) and 3rd trimester (n = 21), pregnant women with PET (n = 22), and non-pregnant female controls (n = 20) vitamin D metabolites were quantified in paired maternal serum, placental, and decidual tissue...
February 2017: Placenta
https://www.readbyqxmd.com/read/28137896/vitamin-d-deficiency-and-impaired-placental-function-potential-regulation-by-glucocorticoids
#10
Nathanael Yates, Rachael Christina Crew, Caitlin Wyrwoll
Maternal vitamin D deficiency has been implicated in a range of pregnancy complications including preeclampsia, preterm birth and intrauterine growth restriction. Some of these adverse outcomes arise from alterations in placental function. Indeed, vitamin D appears critical for implantation, inflammation, immune function and angiogenesis of the placenta. Despite these associations, absence of placental vitamin D receptor in mice provokes little effect. Thus, interactions between maternal and fetal compartments are likely crucial for instigating adverse placental changes...
January 30, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28134839/the-road-not-so-travelled-should-measurement-of-vitamin-d-epimers-during-pregnancy-affect-our-clinical-decisions
#11
Spyridon N Karras, Kalliopi Kotsa, Elena Angeloudi, Pantelis Zebekakis, Declan P Naughton
Observational studies suggest an adverse effect of maternal hypovitaminosis D during pregnancy. However, intervention studies failed to show convincing benefit from vitamin D supplementation during pregnancy. With analytical advances, vitamin D can now be measured in ten forms-including as epimers-which were thought to be biologically inactive, but can critically impair immunoassays. The aim of this commentary is to highlight the potential clinical and analytical significance of vitamin D epimers in the interpretation of vitamin D roles in pregnancy...
January 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28130504/early-life-nutritional-exposures-and-lifelong-health-immediate-and-long-lasting-impacts-of-probiotics-vitamin-d-and-breastfeeding
#12
Cristiana Berti, Carlo Agostoni, Riccardo Davanzo, Elina Hyppönen, Erika Isolauri, Helle M Meltzer, Régine P M Steegers-Theunissen, Irene Cetin
Pregnancy and infancy comprise the most critical stages for conditioning an individual's health, with a number of implications for subsequent risks of morbidity, mortality, and reproductive health. Nutrition may influence both the overall pregnancy outcome and the growth trajectory and immune system of the fetus and infant, with short- and long-term effects on the health of the offspring. Within this context, leading experts at Expo Milano 2015 in Milan, Italy, discussed up-to-date knowledge while providing suggestions and challenges before, during, and after pregnancy...
January 27, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28129773/investigation-of-the-vitamin-d-nutritional-status-in-women-with-gestational-diabetes-mellitus-in-beijing
#13
Yanping Liu, Qiaer Jin, Yuanyuan Bao, Shanshan Li, Jing Wang, Ling Qiu
BACKGROUND: Vitamin D deficiency is a common issue, which has relation with GDM, during the pregnant period. To study the Vitamin D nutritional status of pregnant women with gestational diabetes mellitus (GDM) in the middle and late pregnancy and analyze the different sources of Vitamin D intake. METHODS: A total of ninety-eight pregnant women with GDM were enrolled voluntarily in this study. The patients were divided into two groups, Vitamin D supplement intake and control group...
January 28, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28120286/adverse-perinatal-outcomes-and-postpartum-multi-systemic-dysregulation-adding-vitamin-d-deficiency-to-the-allostatic-load-index
#14
Eynav Elgavish Accortt, James Mirocha, Christine Dunkel Schetter, Calvin J Hobel
Background Allostatic load (AL) is an index of multi-system physiological "wear-and-tear," operationalizing emergent chronic disease risk and predicting morbidity and mortality. AL has been proposed as an organizing framework for studying pregnancy outcomes and additional AL biomarkers for the study of maternal health would be valuable. Objectives To test whether adverse perinatal outcomes are associated with postpartum AL and if including vitamin D deficiency (serum 25(OH)D < 20 ng/ml) as an additional marker of postpartum AL increases the association...
January 24, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28119950/optimizing-inflammatory-bowel-disease-for-successful-in-vitro-fertilization
#15
Jason J Pan, Mora Cannon, Edward Kane, Gauree Konijeti
We present a nulliparous woman with mild to moderate ulcerative colitis (UC) and multiple failed cycles of in vitro fertilization (IVF) in whom we achieved a successful, viable pregnancy following clinical and endoscopic UC remission. Infertile patients with inflammatory bowel disease who have failed multiple cycles of IVF should try to achieve clinical remission and mucosal healing (absence of erosions or ulcers) prior to reattempting conception. Furthermore, deficiencies in vitamin B12, vitamin D, and iron should be addressed...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28110159/manganese-intake-is-inversely-associated-with-depressive-symptoms-during-pregnancy-in-japan-baseline-data-from-the-kyushu-okinawa-maternal-and-child-health-study
#16
Yoshihiro Miyake, Keiko Tanaka, Hitomi Okubo, Satoshi Sasaki, Shinya Furukawa, Masashi Arakawa
BACKGROUND: One epidemiological study in Canada has addressed the association between zinc intake and depressive symptoms during pregnancy while another epidemiological study in Korea has examined the association between iron intake and depressive symptoms during pregnancy. The present cross-sectional study in Japan examined the association between intake of zinc, magnesium, iron, copper, and manganese and depressive symptoms during pregnancy. METHODS: Study subjects were 1745 pregnant women...
March 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28102718/vitamin-d-status-aeroallergen-sensitization-and-allergic-rhinitis-a-systematic-review-and-meta-analysis
#17
Zahra Aryan, Nima Rezaei, Carlos A Camargo
PURPOSE: The role of vitamin D status in the etiology of allergic diseases is uncertain. The aim of this study was to investigate the association of vitamin D status with risk of two main outcomes: aeroallergen sensitization and allergic rhinitis (AR). METHODS: We performed a systematic review of Medline, Scopus, Science Citation Index, and Google Scholar databases. Studies were included if they reported on prevalent or incident cases of aeroallergen sensitization or AR according to vitamin D status...
January 2, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28093352/cyp24a1-loss-of-function-clinical-phenotype-of-monoallelic-and-biallelic-mutations
#18
REVIEW
Thomas O Carpenter
CYP24A1, encoding the vitamin D-24-hydroxylase, is of major clinical and physiologic importance, serving to regulate the catabolism of 1,25-(OH)2D, the physiologically active vitamin D metabolite. In addition to facilitating catabolism of 1,25-(OH)2D, CYP24A1 also enhances the turnover and elimination of 25-OHD, the abundant precursor metabolite and storage form of the vitamin. CYP24A1 can be stimulated hormonally by 1,25-(OH)2D and by FGF23, whereas CYP27B1, encoding the vitamin D-1α-hydroxylase, is stimulated hormonally by parathyroid hormone (PTH) and downregulated by FGF23...
January 13, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28079560/prenatal-exposures-and-the-development-of-childhood-wheezing-illnesses
#19
Christian Rosas-Salazar, Tina V Hartert
PURPOSE OF REVIEW: To critically evaluate and summarize studies published between July 2015 and June 2016 linking prenatal exposures and the onset of childhood wheezing illnesses and to discuss future research directions in this field. RECENT FINDINGS: The aggregated evidence indicates a consistent detrimental effect of prenatal exposure to parental smoking, outdoor air pollution, and maternal stress on childhood wheezing illnesses. Less consistent evidence suggests an adverse impact of maternal obesity during pregnancy and prenatal exposure to antibiotics on these outcomes...
January 11, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28065633/micronutrient-intake-is-inadequate-for-a-sample-of-pregnant-african-american-women
#20
Susan W Groth, Patricia A Stewart, Deborah J Ossip, Robert C Block, Nellie Wixom, I Diana Fernandez
BACKGROUND: Micronutrient intake is critical for fetal development and positive pregnancy outcomes. Little is known about the adequacy of micronutrient intake in pregnant African-American women. OBJECTIVE: To describe nutrient sufficiency and top food groups contributing to dietary intake of select micronutrients in low-income pregnant African-American women and determine whether micronutrient intake varies with early pregnancy body mass index (BMI) and/or gestational weight gain...
January 5, 2017: Journal of the Academy of Nutrition and Dietetics
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