scholarly journals Vitamin D status of White pregnant women and infants at birth and 4 months in North West England: A cohort study

2017 ◽  
Vol 14 (1) ◽  
pp. e12453 ◽  
Author(s):  
Anthoney J. B. Emmerson ◽  
Karen Elizabeth Dockery ◽  
M. Z. Mughal ◽  
Stephen A. Roberts ◽  
Clare Louise Tower ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cohort Study ◽  
Pregnant Women ◽  
Vitamin D Status ◽  
North West

scholarly journals Vitamin D Status in Preeclamptic and Non-preeclamptic Pregnant Women: A Case-Con­trol Study in the North West of Iran

2015 ◽  
Vol 5 (3) ◽  
pp. 183-190 ◽  
Author(s):  
Bita Sadin ◽  
Bahram Pourghassem Gargari ◽  
Fatemeh Pourteymour Fard Tabrizi
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Status ◽  
North West ◽  
The North

scholarly journals The association of vitamin D status and supplementation during pregnancy with gestational diabetes mellitus: a Chinese prospective birth cohort study

2019 ◽  
Author(s):  
Wan-jun Yin ◽  
Rui-xue Tao ◽  
Hong-lin Hu ◽  
Ying Zhang ◽  
Xiao-min Jiang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Vitamin D ◽  
Cohort Study ◽  
Glucose Metabolism ◽  
Pregnant Women ◽  
Vitamin D Supplementation ◽  
Birth Cohort Study ◽  
Vitamin D Status ◽  
Prospective Birth Cohort ◽  
Prospective Birth Cohort Study

ABSTRACT Background Previous studies have shown conflicting findings regarding the relation of vitamin D status and supplementation during pregnancy with gestational diabetes mellitus (GDM). Most of these studies hypothesized that 25-hydroxyvitamin D [25(OH)D] concentrations were associated with GDM risk and glucose metabolism based on linear association models. Objectives We aimed to estimate the associations of 25(OH)D concentrations and vitamin D supplementation with GDM risk and glucose metabolism and determine the threshold concentrations of 25(OH)D that could significantly affect glucose metabolism and GDM risk. Methods In a prospective birth cohort study, we collected information about sociodemographic characteristics, health status, and lifestyle from 4984 pregnant women. Vitamin D supplementation and 25(OH)D concentrations were assessed in the second trimester. Data from the 75-g oral-glucose-tolerance test were obtained at 24–28 weeks of gestation. Results A total of 922 (18.5%) women were diagnosed with GDM. Compared with women with 25(OH)D concentrations <25 nmol/L, the GDM risk was significantly lower in women with 25(OH)D concentrations ranging from 50 to 75 nmol/L (RR: 0.74; 95% CI: 0.58, 0.95) and >75 nmol/L (RR: 0.40; 95% CI: 0.22, 0.70). The curve-fitting models suggested a significant large reduction in GDM risk, fasting plasma glucose, and area under the curve of glucose with increasing 25(OH)D concentrations only for concentrations >50 nmol/L. Consistently, GDM risk was significantly reduced only in women who took 400–600 IU vitamin D/d (RR: 0.83; 95% CI: 0.70, 0.97) with a mean 25(OH)D concentration of 50 nmol/L but not in women taking vitamin D sometimes with a mean 25(OH)D concentration of 40 nmol/L. Conclusions GDM risk was significantly reduced only in pregnant women with 25(OH)D concentrations >50 nmol/L. Pregnant women taking 400–600 IU vitamin D/d with mean 25(OH)D concentrations of 50 nmol/L had a lower risk of GDM.

scholarly journals Vitamin D Status in Pregnant Women in Southern China and Risk of Preterm Birth: A Large-Scale Retrospective Cohort Study

2019 ◽  
Vol 25 ◽  
pp. 7755-7762 ◽  
Author(s):  
Li Yu ◽  
Yong Guo ◽  
Hai-Jin Ke ◽  
Yan-si He ◽  
Di Che ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cohort Study ◽  
Preterm Birth ◽  
Pregnant Women ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Large Scale ◽  
Southern China ◽  
Vitamin D Status

scholarly journals Low maternal vitamin D status and fetal bone development: Cohort study

2009 ◽  
Vol 25 (1) ◽  
pp. 14-19 ◽  
Author(s):  
Pamela Mahon ◽  
Nicholas Harvey ◽  
Sarah Crozier ◽  
Hazel Inskip ◽  
Sian Robinson ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cohort Study ◽  
Bone Development ◽  
Vitamin D Status ◽  
Maternal Vitamin ◽  
Fetal Bone ◽  
Maternal Vitamin D Status

scholarly journals Interactions between Vitamin D Status, Calcium Intake and Parathyroid Hormone Concentrations in Healthy White-Skinned Pregnant Women at Northern Latitude

Nutrients ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 916 ◽  
Author(s):  
Andrea Hemmingway ◽  
Karen O’Callaghan ◽  
Áine Hennessy ◽  
George Hull ◽  
Kevin Cashman ◽  
...  
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Pregnant Women ◽  
Calcium Intake ◽  
Geometric Mean ◽  
Vitamin D Status ◽  
Metabolic System ◽  
Cross Sectional ◽  
The Mean ◽  
In Pregnancy

Adverse effects of low vitamin D status and calcium intakes in pregnancy may be mediated through functional effects on the calcium metabolic system. Little explored in pregnancy, we aimed to examine the relative importance of serum 25-hydroxyvitamin D (25(OH)D) and calcium intake on parathyroid hormone (PTH) concentrations in healthy white-skinned pregnant women. This cross-sectional analysis included 142 participants (14 ± 2 weeks’ gestation) at baseline of a vitamin D intervention trial at 51.9 °N. Serum 25(OH)D, PTH, and albumin-corrected calcium were quantified biochemically. Total vitamin D and calcium intakes (diet and supplements) were estimated using a validated food frequency questionnaire. The mean ± SD vitamin D intake was 10.7 ± 5.2 μg/day. With a mean ± SD serum 25(OH)D of 54.9 ± 22.6 nmol/L, 44% of women were <50 nmol/L and 13% <30 nmol/L. Calcium intakes (mean ± SD) were 1182 ± 488 mg/day and 23% of participants consumed <800 mg/day. The mean ± SD serum albumin-adjusted calcium was 2.2 ± 0.1 mmol/L and geometric mean (95% CI) PTH was 9.2 (8.4, 10.2) pg/mL. PTH was inversely correlated with serum 25(OH)D (r = −0.311, p < 0.001), but not with calcium intake or serum calcium (r = −0.087 and 0.057, respectively, both p > 0.05). Analysis of variance showed that while serum 25(OH)D (dichotomised at 50 nmol/L) had a significant effect on PTH (p = 0.025), calcium intake (<800, 800–1000, ≥1000 mg/day) had no effect (p = 0.822). There was no 25(OH)D-calcium intake interaction effect on PTH (p = 0.941). In this group of white-skinned women with largely sufficient calcium intakes, serum 25(OH)D was important for maintaining normal PTH concentration.

scholarly journals Vitamin D status in pregnant women and their newborns in a tertiary care hospital

2018 ◽  
Vol 7 (12) ◽  
pp. 5071
Author(s):  
Harleen Kour ◽  
Shashi Gupta ◽  
Swarn K. Gupta ◽  
Bawa Ram Bhagat ◽  
Gagan Singh
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Deficiency ◽  
Tertiary Care ◽  
North India ◽  
Care Hospital ◽  
Vitamin D Status ◽  
Pregnant Females ◽  
Vitamin D Levels ◽  
Maternal And Newborn

Background: In the recent years there has been an increased understanding of the role that vitamin D plays in regulation of cell growth, calcium absorption and immunity and its impact on the developing fetus and maternal health is of significant concern. This study aims at evaluating the Vitamin D status in pregnant women and their newborns.Methods: A cross sectional study was done on 100 pregnant females according to inclusion and exclusion criteria. At the time of delivery, maternal blood was collected, and newborn samples were taken from newborn side of umbilical cord and sent for analysis.Results: The prevalence of Vitamin D deficiency has been found to be 85% of pregnant females and 91% of the newborns. Only 5% of pregnant females and 1% of the newborns showed Vitamin D sufficiency. Maternal and newborn vitamin D levels show a positive correlation. Mean maternal and newborn Vitamin D levels were found to be 16.78±7.04 ng/mL and 11.29±5.75 ng/ml.Conclusions: Vitamin D deficiency is highly prevalent among pregnant women in north India. Low maternal vitamin D levels lead to vitamin D deficiency in the newborns also.

scholarly journals Vitamin D status and the risk of type 2 diabetes: The Melbourne Collaborative Cohort Study

2019 ◽  
Vol 149 ◽  
pp. 179-187 ◽  
Author(s):  
Alicia K. Heath ◽  
Elizabeth J. Williamson ◽  
Allison M. Hodge ◽  
Peter R. Ebeling ◽  
Darryl W. Eyles ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Vitamin D ◽  
Cohort Study ◽  
Vitamin D Status ◽  
Melbourne Collaborative Cohort Study
Sign in / Sign up

Export Citation Format

Share Document