Low Serum 25(OH)D and Higher PTH and β-CTX Independently Associated with Increased Risk of All-Cause Mortality

Written by Taylor Woosley, Staff Writer. Centenarians with three risk factors (low serum 25(OH)D and higher PTH and β-CTX levels) and those with two risk factors had, respectively, had a 2.02-fold and 1.49-fold increase in risk of all-cause mortality in comparison with centenarians with no risk factors.  (more…)

Sufficient Vitamin D Levels Reduces Risk for All-Cause and Cardiovascular Mortality in Subjects with Non-Alcoholic Fatty Liver Disease

Written by Taylor Woosley, Staff Writer. Results of this prospective cohort study using data from the 2001-2006 NHANES shows that each 1-unit increase in serum 25(OH)D concentration was related to a 41% lower risk of all-cause mortality and a 65% lower risk of cardiovascular mortality in the fully adjusted model.  (more…)

Vitamin D Supplementation Reduces Depressive Symptoms in Subjects with Major Depressive Disorder

Written by Taylor Woosley, Staff Writer. Significant findings of this systemic review and meta-analysis of 41 papers with a total of 53,235 participants show that subgroup analysis in participants with clinically relevant depressive symptoms (including subjects with MDD) yielded a moderate effect favoring vitamin D supplementation (Hedges’ g = −0.604, 95% CI −0.802 to −0.406, p < 0.001, I2 = 78.4%).  (more…)

Vitamin D3 Repletion Improves Vascular Function and Reduces Full Length Osteopontin in Vitamin D Deficient African American Subjects

Written by Taylor Woosley, Staff Writer. Monthly supplementation of 100,000 IU of cholecalciferol was associated with a 2-fold increase in vitamin D levels, from 17 ± 5 ng/mL to 35 ± 7 ng/mL (p < 0.0001) after 12 weeks. Serum levels of log transformed flOPN were significantly reduced (p=0.03) and log FGF-23 was increased in the treated group (p = 0.04). (more…)

Insufficient or Deficient Vitamin D Levels Linked to Higher Risk of Insulin Resistance

Written by Taylor Woosley, Staff Writer. Examining vitamin D serum levels and prevalence of insulin resistance using data from the 2011-2018 National Health and Nutrition Examination Survey show that those in the lowest serum vitamin D level group had 54% greater odds of being insulin-resistant compared to those in higher serum vitamin D level groups. (more…)

Deficient or Insufficient Vitamin D Levels Associated with Depressive Symptoms in Older Adults

Written by Taylor Woosley, Staff Writer. Results of the study show that deficient and insufficient levels of serum 25-OH-D are associated with higher depression scores. The odds of a higher depression score were significantly higher in participants with insufficient 25-(OH)-D than in participants with 25-OH-D sufficiency (OR = 6.40, p < 0.001).  (more…)

Insufficient Vitamin D Levels Associated with Higher Risk of Cardiovascular Disease

Written by Taylor Woosley, Staff Writer. Analysis of a prospective cohort study with data collected from around 267, 980 subjects, using Mendelian randomization framework, resulted in a non-linear association between 25(OH)D levels and CVD risk. Every 10 nmol/L increase in serum 25(OH)D levels was associated with 1.6% lower odds of CVD.  (more…)

Vitamin D Supplementation Associated with Improved Lipid Levels

Written by Taylor Woosley, Staff Writer. A total of 41 randomized controlled trials observing the effects vitamin D supplementation may have on overall cholesterol levels were analyzed. Findings suggest vitamin D supplementation, especially in participants with deficient levels, improved serum total cholesterol levels, LDL cholesterol levels, and triglyceride levels. (more…)