ArticleFrontiers in endocrinology2022
Associations Between Body Composition, Leptin, and Vitamin D Varied by the Body Fat Percentage in Adolescents.
Article in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Correlations among whole-body fat, bone, and biomarkers in boys and girls with obesity: a cross-sectional study.Annals of pediatric endocrinology & metabolism · 2026Article
- A pilot study examining a ketogenic diet as an adjunct therapy in college students with major depressive disorder.Translational psychiatry · 2025Article
- Isocaloric high-fat diet decreases motivation in the absence of obesity.Obesity (Silver Spring, Md.) · 2025Article
- The interplay between childhood obesity and vitamin D deficiency: mechanisms and implications.Frontiers in pediatrics · 2025Review
- Unveiling the causal link between metabolic factors and ovarian cancer risk using Mendelian randomization analysis.Frontiers in endocrinology · 2024Article
- Association between Serum 25-Hydroxyvitamin D Concentrations and Academic Performance among Adolescent Schoolchildren: A Cross-Sectional Study.Nutrients · 2023Article
- Review
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Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
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Abstract
Background: Serum leptin levels reflects one's degree of obesity and can affect vitamin D levels. The relationship between body fat, leptin, and 25-hydroxyvitamin D (25(OH)D) has not been extensively studied in adolescents. This study aimed to investigate the correlations between body composition and leptin and 25(OH)D levels in boys and girls. Methods: Participants aged 12-14 years (n = 205) were grouped according to sex. After body composition was recorded using bioelectrical impedance analysis, they were classified into three groups according to body fat percentage (%BF) (< 30, ≥ 30 and < 40, and ≥ 40). Serum leptin and 25(OH)D levels were measured using the enzyme-linked immunosorbent assay (ELISA). Correlations between all variables were analyzed according to sex and the percentage of BF groups. Results: Boys and girls with %BF ≥ 30 showed no difference in body mass index (BMI), %BF, and leptin and 25(OH)D, while other variables of body composition were more common in boys than in girls. The %BF, body fat mass (BFM), and 25(OH)D of both sexes with %BF ≥ 30, and leptin levels of boys with %BF ≥ 40 increased with an increase in %BF. A negative correlation between leptin and 25(OH)D levels was found in boys with %BF < 40 and girls with %BF < 30. In the %BF ≥ 30 and < 40 groups, there were negative correlations between leptin, BFM, free fat mass, and muscle mass (MM); between leptin, 25(OH)D, and height in boys; and between 25(OH)D, body weight, BMI, and MM in girls. Conclusion: A negative correlation between leptin and 25(OH)D levels varied according to sex, while for body composition, it was evident at 30 and 40% BF.
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