Related Experiment Video
Updated: Mar 22, 2026

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
Vitamin D levels in children with familial Mediterranean fever
Hatice Onur1, Hale Aral2, Vefik Arica3
1Department of Pediatrics, Bursa Yuksek Ihtisas Training and Research Hospital, 152 Evler, Prof. Tezok street No: 2, Yıldırım/Bursa, Istanbul, Turkey. drhaticeakar@gmail.com.
Insights
Children with familial Mediterranean fever (FMF) have lower vitamin D levels than healthy children. This suggests vitamin D deficiency screening and supplementation may be beneficial for FMF patients.
Area of Science:
- Pediatrics
- Immunology
- Endocrinology
Background:
- Familial Mediterranean fever (FMF) is a genetic autoinflammatory disease.
- Vitamin D plays a crucial role in immune function and bone health.
- The relationship between FMF and vitamin D status is not well-established.
Purpose of the Study:
- To investigate the prevalence of vitamin D deficiency in children diagnosed with FMF.
- To compare vitamin D levels in pediatric FMF patients with healthy controls.
Main Methods:
- A case-control study involving 100 children with FMF and 50 healthy children.
- Measurement of serum 25-hydroxyvitamin D levels.
- Analysis of demographic and clinical parameters, including MEFV mutations and parathyroid hormone levels.
Main Results:
- Children with FMF exhibited significantly lower serum vitamin D levels compared to healthy controls (24.78 vs. 28.70 ng/mL, P=0.039).
- Vitamin D levels did not differ significantly across various MEFV mutations (P=0.633).
- A significant negative correlation was observed between vitamin D levels and parathyroid hormone (rs=-0.382, P<0.0001), and age (r=-0.235, P=0.019).
Conclusions:
- Pediatric patients with FMF demonstrate lower vitamin D levels than their healthy peers.
- Routine assessment of vitamin D status and potential supplementation are recommended for children with FMF.
- Further large-scale studies are warranted to confirm the incidence of vitamin D deficiency in FMF.
Background:
This study aimed to determine whether vitamin D deficiency is more common in children with familial Mediterranean fever (FMF) than in healthy individuals.
Methods:
The study group consisted of 100 patients diagnosed with FMF and 50 healthy children. Serum baseline 25-hydroxyvitamin D levels and other related parameters were evaluated.
Results:
The mean (standard deviation [SD]) vitamin D levels in patients with FMF and healthy controls were 24.78 (8.35) and 28.70 (11.70) ng/mL, respectively. Patients with FMF had significantly decreased vitamin D levels compared with those in healthy controls (P = 0.039). Vitamin D levels were similar in patients with FMF with different MEFV mutations (P = 0.633). Age was significantly correlated with vitamin D levels (r = -0.235, P = 0.019). In addition, a negative correlation between parathyroid hormone and vitamin D levels was detected (rs = -0.382, P < 0.0001).
Conclusion:
This study demonstrated that vitamin D levels are lower in children with FMF than in healthy controls. We speculate that vitamin D levels should be carefully examined, and nutritional supplementation may be required in patients with FMF. Further studies with larger patient populations are needed to confirm the frequency of vitamin D deficiency in patients with FMF.
More Related Videos
09:18Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy
Published on: January 12, 2019
06:31Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response
Published on: October 3, 2019
Related Concept Videos
Role of Skin in Vitamin D Synthesis
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin...
Connective Tissue Cell Types
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Chronic Kidney Disease II: Clinical Manifestations
Myocarditis II: Clinical Features and Diagnostic Tests
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...