scholarly journals An Observational Study Reveals That Neonatal Vitamin D Is Primarily Determined By Maternal Contributions: Implications Of A New Assay On The Roles Of Vitamin D Forms

2013 ◽  
pp. 349-368
Keyword(s):  
Vitamin D ◽  
Observational Study

scholarly journals Levels of vitamin D among overweight and obese adolescents: an observational study

2017 ◽  
Vol 4 (6) ◽  
pp. 1934
Author(s):  
T. Prashanth Reddy ◽  
Kishore Reddy ◽  
Madhu Sudhan Reddy ◽  
Manjunath G. A.
Keyword(s):  
Vitamin D ◽  
Observational Study ◽  
Vitamin D Deficiency ◽  
Overweight And Obesity ◽  
Dietary Factors ◽  
Vitamin D Status ◽  
Obese Adolescents ◽  
Vitamin D Levels ◽  
Study Results ◽  
Wide Range

Background: Normal growth and development requires vitamin D, and its deficiency compromises long term health and increases the risk of chronic disease. Severe vitamin D deficiency include rickets, osteomalacia, osteoporosis, increased risk of fracture, tooth loss. Studies indicate that vitamin D insufficiency (less severe than deficiency) is associated with a wide range of illnesses and chronic conditions, including type 1 diabetes, hypertension, multiple sclerosis and many types of cancer. Currently world is facing an unrecognized and untreated pandemic of vitamin D deficiency. This study aims at showing the relation between Vitamin D status and obesity in adolescent children and to know the dietary factors, life style factors like physical activity contributing to overweight and obesity in adolescents.Methods: Study design: This is an observational study of 30 overweight and obese adolescents based on BMI were studied and their Vitamin D levels were assessed.Results: A total of 14(46.7%) overweight and 16(53.3%) obese adolescents Vitamin D levels were assessed. 20(66.7%) had vitamin D levels <20ng/ml that is in the deficiency range.4(13.3%) had in the insufficiency range (21-30ng/ml), 6(20%) had in the sufficient range. Results shows vitamin D levels were significantly less in obese and overweight adolescents.Conclusions: Study results confirm that Vitamin D deficiency or insufficiency is common to obese and overweight adolescents, this may help to explain the relationship between obesity and several chronic diseases that are associated with poor Vitamin D status.

scholarly journals High-Dose Cholecalciferol Booster Therapy is Associated with a Reduced Risk of Mortality in Patients with COVID-19: A Cross-Sectional Multi-Centre Observational Study

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3799
Author(s):  
Stephanie F. Ling ◽  
Eleanor Broad ◽  
Rebecca Murphy ◽  
Joseph M. Pappachan ◽  
Satveer Pardesi-Newton ◽  
...  
Keyword(s):  
Vitamin D ◽  
Observational Study ◽  
Large Population ◽  
Public Health Issue ◽  
High Dose ◽  
Cross Sectional ◽  
Pharmacological Management ◽  
Baseline Serum ◽  
Risk Of Mortality ◽  
Reduced Risk

The worldwide pandemic of 2019 novel coronavirus disease (COVID-19) has posed the most substantial and severe public health issue for several generations, and therapeutic options have not yet been optimised. Vitamin D (in its “parent” form, cholecalciferol) has been proposed in the pharmacological management of COVID-19 by various sources. We aimed to determine whether COVID-19 mortality was affected by serum 25-hydroxyvitamin D (25(OH)D) levels, vitamin D status, or cholecalciferol therapy, and to elucidate any other predictors of COVID-19 mortality. Patients hospitalised with COVID-19 were opportunistically recruited from three UK hospitals, and their data were collected retrospectively. Logistic regression was used to determine any relationships between COVID-19 mortality and potential predictors, including 25(OH)D levels and cholecalciferol booster therapy. A total of 986 participants with COVID-19 were studied, of whom 151 (16.0%) received cholecalciferol booster therapy. In the primary cohort of 444 patients, cholecalciferol booster therapy was associated with a reduced risk of COVID-19 mortality, following adjustment for potential confounders (ORadj 0.13, 95% CI 0.05–0.35, p < 0.001). This finding was replicated in a validation cohort of 541 patients (ORadj 0.38, 95% CI 0.17–0.84, p = 0.018). In this observational study, treatment with cholecalciferol booster therapy, regardless of baseline serum 25(OH)D levels, appears to be associated with a reduced risk of mortality in acute in-patients admitted with COVID-19. Further work with large population studies needs to be carried out to determine adequate serum 25(OH)D levels, as well as multi-dose clinical trials of cholecalciferol therapy to assess maximum efficacy.

scholarly journals Hypocalcemia following Neridronate Administration in Pediatric Patients with Osteogenesis Imperfecta: A Prospective Observational Study

2020 ◽  
Vol 09 (02) ◽  
pp. 093-100 ◽  
Author(s):  
Evelina Maines ◽  
Elisa Tadiotto ◽  
Grazia Morandi ◽  
Michela Fedrizzi ◽  
Rossella Gaudino ◽  
...  
Keyword(s):  
Vitamin D ◽  
Observational Study ◽  
Osteogenesis Imperfecta ◽  
Prospective Observational Study ◽  
Pediatric Patients ◽  
Pediatric Population ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Vitamin D Levels ◽  
D Values

AbstractThe use of intravenous bisphosphonates has been linked to hypocalcemia both in children and adults with osteogenesis imperfecta (OI). The aims of this study were: (1) to investigate the incidence of hypocalcemia in the first 48 hours (T48) after neridronate infusion in a pediatric population with OI and (2) to assess any correlation between the baseline values of calcium, vitamin D (25-hydroxyvitamin D) and bone turnover markers, and the postinfusion calcium values. We conducted a prospective observational study on 37 pediatric patients. All patients were treated with a single infusion of neridronate at a dose of 1 to 2 mg/kg. The study provided two postinfusion reassessments: 24 hours (T24) and T48 after neridronate administration. Hypocalcemia was observed in 11% of patients at T24 and in 50% of patients at T48 from neridronate infusion. We observed a positive linear correlation between the baseline vitamin D values and postinfusion calcium values, both at baseline and at T24 and T48. Hypocalcemia was mild and asymptomatic in all cases. Postinfusion calcium levels were related to baseline vitamin D levels. Consequently, low vitamin D levels should be considered a significant risk factor for hypocalcemia and should be carefully investigated and treated before neridronate infusion.

OP0015 Changing Patterns of Requests for Measurement of Vitamin D in Primary Care: an Observational Study

2014 ◽  
Vol 73 (Suppl 2) ◽  
pp. 65.2-65
Author(s):  
S. Zhao ◽  
K. Gardner ◽  
W. Taylor ◽  
E. Marks ◽  
N.J. Goodson
Keyword(s):  
Primary Care ◽  
Vitamin D ◽  
Observational Study ◽  
Changing Patterns

scholarly journals Vitamin D insufficiency, preterm delivery and preeclampsia in women with type 1 diabetes - an observational study

2017 ◽  
Vol 96 (10) ◽  
pp. 1197-1204 ◽  
Author(s):  
Marianne Vestgaard ◽  
Anna L. Secher ◽  
Lene Ringholm ◽  
Jens-Erik B. Jensen ◽  
Peter Damm ◽  
...  
Keyword(s):  
Vitamin D ◽  
Type 1 Diabetes ◽  
Observational Study ◽  
Preterm Delivery ◽  
Vitamin D Insufficiency
Sign in / Sign up

Export Citation Format

Share Document