25-hydroxyvitamin-d-2 and Hyperlipidemias

This systematic review and meta-analysis was performed on the relationship of serum 25-hydroxy-vitamin D [25(OH)D] and lipid profile in the pediatric age group. Electronic search was conducted in international databases. Our search yielded to 3213 articles, with initial searching of title and abstracts, 3192 of them were excluded and 21 remained. A meta-analysis of 17 cross-sectional studies, including 25 394 subjects, was conducted according to Strobe guideline. We found an inverse weak significant association between 25(OH)D and triglycerides (r = -0.135, CI; -0.243, -0.025), total cholesterol (r = -0.086, CI; -0.0205, 0.035) and LDL-C (r = -0.025, CI; -0.22, 0.17), and direct association with HDL-C (r = 0.156, CI; -0.021, 0.324). In the pooled analysis, we used a random effects model as the heterogeneity between studies was significant (I²= 97.04%, p < 0.001 for triglycerides; I²= 96.09%, p < 0.001 for total cholesterol; I²= 96.14%, p < 0.001 for LDL-C; I²= 99%, p < 0.001 for HDL-C). This study indicates that higher serum 25(OH)D is related to a more favorable lipid profile in the pediatric age group.

Topics: 25-Hydroxyvitamin D 2; Adolescent; Calcifediol; Child; Cross-Sectional Studies; Humans; Hyperlipidemias; Lipids; Nutritional Status; Vitamin D Deficiency

To examine cross-sectional relationships between plasma vitamin D and cardiometabolic risk factors in young adults.. Data were collected from interviews, physical examinations and biomarker measurements. Total plasma 25-hydroxyvitamin D (25(OH)D) was measured using LC-tandem MS. Associations between 25(OH)D and cardiometabolic risk factors were modelled using weighted linear regression with robust estimates of standard errors.. Individuals born in Jerusalem during 1974-1976.. Participants of the Jerusalem Perinatal Study (n 1204) interviewed and examined at age 32 years. Participants were oversampled for low and high birth weight and for maternal pre-pregnancy obesity.. Mean total 25(OH)D concentration among participants was 21·7 (sd 8·9) ng/ml. Among males, 25(OH)D was associated with homeostatic model assessment of insulin resistance (natural log-transformed, β=-0·011, P=0·004) after adjustment for BMI. However, these associations were not present among females (P for sex interaction=0·005).. We found evidence for inverse associations of 25(OH)D with markers of insulin resistance among males, but not females, in a healthy, young adult Caucasian population. Prospective studies and studies conducted on other populations investigating sex-specific effects of vitamin D on cardiometabolic risk factors are warranted.

Topics: 25-Hydroxyvitamin D 2; Adult; Biomarkers; Body Mass Index; Calcifediol; Cardiovascular Diseases; Cohort Studies; Cross-Sectional Studies; Female; Humans; Hyperglycemia; Hyperinsulinism; Hyperlipidemias; Insulin Resistance; Israel; Longitudinal Studies; Male; Metabolic Syndrome; Overweight; Risk Factors; Sex Factors; Vitamin D Deficiency