scholarly journals Vitamin D deficiency and pregnancy rates following frozen–thawed embryo transfer: a prospective cohort study

2016 ◽  
Vol 31 (8) ◽  
pp. 1749-1754 ◽  
Author(s):  
Arne van de Vijver ◽  
Panagiotis Drakopoulos ◽  
Lisbet Van Landuyt ◽  
Alberto Vaiarelli ◽  
Christophe Blockeel ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cohort Study ◽  
Vitamin D Deficiency ◽  
Embryo Transfer ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Pregnancy Rates ◽  
Frozen Thawed Embryo Transfer ◽  
Thawed Embryo Transfer

scholarly journals Vitamin D deficiency is associated with hepatic decompensation and inflammation in patients with liver cirrhosis: A prospective cohort study

PLoS ONE ◽  
2018 ◽  
Vol 13 (11) ◽  
pp. e0207162 ◽  
Author(s):  
Alica Kubesch ◽  
Leonie Quenstedt ◽  
Maged Saleh ◽  
Sabrina Rüschenbaum ◽  
Katharina Schwarzkopf ◽  
...  
Keyword(s):  
Vitamin D ◽  
Liver Cirrhosis ◽  
Cohort Study ◽  
Vitamin D Deficiency ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Hepatic Decompensation

Treatment for Vitamin D Deficiency Prior to Bariatric Surgery: a Prospective Cohort Study

2016 ◽  
Vol 26 (5) ◽  
pp. 1146-1149 ◽  
Author(s):  
Leigh A. Peterson ◽  
Lawrence J. Cheskin ◽  
Michael A. Schweitzer ◽  
Thomas H. Magnuson ◽  
Kimberley E. Steele
Keyword(s):  
Bariatric Surgery ◽  
Vitamin D ◽  
Cohort Study ◽  
Vitamin D Deficiency ◽  
Prospective Cohort Study ◽  
Prospective Cohort

Vitamin D status in infants during the first 9 months of age and its effect on growth and other biochemical markers: A Prospective Cohort Study

2016 ◽  
Vol 62 (5) ◽  
pp. 19
Author(s):  
Manish Gutch ◽  
Sukriti Kumar ◽  
Uday Kumar Mandal
Keyword(s):  
Vitamin D ◽  
Cohort Study ◽  
Vitamin D Deficiency ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
The Body ◽  
Serum 25Ohd ◽  
Serum Vitamin D

Background and aim. We planned this prospective cohort study in term newborn babies, with the objective to determine the incidence of vitamin D deficiency in infancy and to determine the level of vitamin D which triggers the physiological PTH axis of the body so as to differentiate truly deficient from sufficient vitamin D status.Methods. 96 participants at birth were enrolled and followed up till 9 months of age. Serum25OHD was estimated in cord blood at birth and at 14 ± 1 weeks of life. 77 participants were followed up at 9 months for estimation of serum 25OHD, PTH, Alkaline phosphatase (ALP), calcium and phosphorus. Vitamin D deficiency was defined as serum 25OHD <15 ng/mL as per USIOM guidelines.Results. Serum 25OHD levels at 9 months of age (15.78±8.97ng/mL) were significantly increased in comparison to the level of 3 months of age (14.04±7.10ng/mL) and at birth (8.94±2.24ng/mL).At birth all the participants (77) were deficient in 25OHD levels. It was found that 16/94 (17%)and 19/77 (24.7%) participants at 3 and 9 months of age respectively became vitamin D sufficient without any vitamin D supplementation. There was a significant inverse correlation between serum 25OHD and PTH concentration (r=-0.522, p<0.001), serum 25OHD and ALP(r=-.501, p<0.001). It was found that reduction in serum vitamin D level to below 10.25 ng/mL results in surge of serum PTH.Conclusion: Vitamin D deficiency is common from birth to 9 months of age but incidence decreases spontaneously even without supplementation. Also large number of babies may be falsely labelled as vitamin D deficient with currently followed cutoffs. So a new cutoff for vitamin D deficiency needs to be established for neonates and infants.

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