Season and vitamin D status are independently associated with glucose homeostasis in pregnancy

Published on Aug 2, 2017in Nutrition & Metabolism4.169
· DOI :10.1186/S12986-017-0203-5
Eileen C O'Brien10
Estimated H-index: 10
(UCD: University College Dublin),
Elizabeth J. O’Sullivan11
Estimated H-index: 11
(UCD: University College Dublin)
+ 3 AuthorsFionnuala M. McAuliffe58
Estimated H-index: 58
(UCD: University College Dublin)
Sources
Abstract
Background Vitamin D status and season are intrinsically linked, and both have been proposed to be associated with glucose homeostasis in pregnancy, with conflicting results. We aimed to determine if exposure to winter and low maternal 25 hydroxyvitamin D (25OHD) in early pregnancy were associated with maternal glucose metabolism.
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#1Fiona O'SullivanH-Index: 6
#2Eamon Laird (UCD: University College Dublin)H-Index: 20
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: Background: UVB-induced skin synthesis is considered the key source of vitamin D, yet exposure to UVB is poorly accounted for in epidemiological studies.Objectives: The aim of this study was to examine the association of serum 25-hydroxyvitamin D [25(OH)D] concentration with accurately measured ambient UVB dose, sun enjoyment, supplements, and other factors.Methods: An all-Irish cohort of community-dwelling participants aged >60 y [median age: 73; 67% female; median 25(OH)D: 54.5 nmol/L] was u...
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#1William B. GrantH-Index: 88
#2Harjit Pal Bhattoa (University of Debrecen)H-Index: 23
Last. Barbara J. Boucher (QMUL: Queen Mary University of London)H-Index: 55
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#2Rickard Claesson (Lund University)H-Index: 7
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Aim. The aim of this study was to examine seasonal patterns in glucose tolerance and in the diagnosis of gestational diabetes mellitus (GDM). Methods. Altogether, 11 538 women underwent a 75-g oral glucose tolerance test (OGTT) in the twenty-eighth week of pregnancy during the years 2003-2005 in southern Sweden. GDM was defined by the 2-h capillary glucose concentration in the OGTT (≥8.9 mmol/L). Chi-squared test, analysis of variance, and regression analyses were used for statistical evaluation...
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#1Petra E. Verburg (University of Adelaide)H-Index: 6
#2Graeme Tucker (University of Adelaide)H-Index: 30
Last. Claire T. Roberts (University of Adelaide)H-Index: 54
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Objective To investigate whether there is a seasonal variation in the incidence of gestational diabetes mellitus (GDM). Research design and methods This retrospective cohort study of 60 306 eligible South Australian live-born singletons during 2007–2011 recorded in the South Australian Perinatal Statistics Collection (SAPSC) examined the incidence of GDM in relation to estimated date of conception (eDoC). Fourier series analysis was used to model seasonal trends. Results During the study period,...
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Low vitamin D status is common in Europe. The major source of vitamin D in humans is ultraviolet B (UVB)-induced dermal synthesis of cholecalciferol, whereas food sources are believed to play a lesser role. Our objectives were to assess UVB availability (Jm−2) across several European locations ranging from 35° N to 69° N, and compare these UVB data with representative population serum 25-hydroxyvitamin D (25(OH)D) data from Ireland (51–54° N), Iceland (64° N) and Norway (69° N), as exemplars. Vi...
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Last. Louise C. Kenny (UCC: University College Cork)H-Index: 69
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Associations between vitamin D and pregnancy outcomes have been inconsistent.We described the distribution of 25-hydroxyvitamin D3 [25(OH)D3], 3-epi-25(OH)D3, and 25(OH)D2 in early pregnancy and investigated associations with pre-eclampsia and small-for-gestational-age (SGA) birth, which are indicative of uteroplacental dysfunction.The SCOPE (Screening for Pregnancy Endpoints) Ireland prospective pregnancy cohort study included 1768 well-characterized low-risk, nulliparous women resident at 52°N...
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#2Jean M. Donnelly (UCD: University College Dublin)H-Index: 10
Last. Fionnuala M. McAuliffe (UCD: University College Dublin)H-Index: 58
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Aim To examine the association between maternal nutrition and lifestyle factors and offspring adiposity, using baseline and 2-year postpartum follow-up data from a randomised control trial of low glycaemic index diet.
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#2Veronica C.K. Wong (Wollongong Hospital)H-Index: 2
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OBJECTIVE To determine the effect of different seasons on the prevalence of gestational diabetes mellitus (GDM) by using World Health Organization criteria. RESEARCH DESIGN AND METHODS The results of all pregnancy glucose tolerance tests (GTTs) were prospectively collected over a 3-year period in a temperate climate, and the results were grouped by season. RESULTS The results of 7,369 pregnancy GTTs were available for consideration. In winter, the median 1-h and 2-h glucose results after GTT wer...
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#1Cyrus Cooper (University of Oxford)H-Index: 226
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Summary Background Maternal vitamin D status has been associated with bone mass of offspring in many, but not all, observational studies. However, maternal vitamin D repletion during pregnancy has not yet been proven to improve offspring bone mass in a randomised controlled trial. We aimed to assess whether neonates born to mothers supplemented with vitamin D during pregnancy have greater whole-body bone mineral content (BMC) at birth than those of mothers who had not received supplementation. M...
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#1Kevin D. CashmanH-Index: 69
#2Kirsten G. DowlingH-Index: 14
Last. Christian Mølgaard (UCPH: University of Copenhagen)H-Index: 69
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Background: Vitamin D deficiency has been described as being pandemic, but serum 25-hydroxyvitamin D [25(OH)D] distribution data for the European Union are of very variable quality. The NIH-led international Vitamin D Standardization Program (VDSP) has developed protocols for standardizing existing 25(OH)D values from national health/nutrition surveys. Objective: This study applied VDSP protocols to serum 25(OH)D data from representative childhood/teenage and adult/older adult European populatio...
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#1Rosangela Cisneiros (UPE: Universidade de Pernambuco)
#2Juliana Conduru Mendes Segatto (UNIVASF: Universidade Federal do Vale do São Francisco)H-Index: 1
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#1R.A. FoxH-Index: 2
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Background The oral glucose-tolerance test (OGTT) is currently the standard method for diagnosis of gestational diabetes (GDM). We conducted a post hoc analysis using the Australian Hyperglycemia and Adverse Pregnancy Outcome (HAPO) data to determine seasonal variations in OGTT results, the consequent prevalence of GDM, and association with select perinatal parameters.
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#1Åse Ruth Eggemoen (University of Oslo)H-Index: 5
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