Serum Vitamin D Level and Body Mass Index in Children with Vernal Keratoconjunctivitis

Gonul Karatas Durusoy1, Yalcin Karakucuk2, Beril Tulu Aygun3

  • 1Department of Ophthalmology, Dr. Ersin Arslan Training and Research Hospital, Gaziantep, Turkey.

Beyoglu Eye Journal
|January 31, 2022
PubMed

Insights

Children with vernal keratoconjunctivitis (VKC) have lower serum vitamin D levels and higher body mass index (BMI) compared to healthy children. This study highlights a potential link between vitamin D deficiency, elevated BMI, and VKC in pediatric patients.

Area of Science:

  • Ophthalmology
  • Pediatrics
  • Endocrinology

Background:

  • Vernal keratoconjunctivitis (VKC) is a severe allergic eye disease affecting children.
  • Vitamin D deficiency and obesity are increasingly recognized as global health issues with potential systemic implications.
  • The relationship between VKC, vitamin D status, and body mass index (BMI) requires further investigation.

Purpose of the Study:

  • To investigate the association between serum 25-hydroxyvitamin D [25(OH)D3] levels and body mass index (BMI) in children diagnosed with vernal keratoconjunctivitis (VKC).

Main Methods:

  • A comparative study involving 46 children with VKC and 40 healthy, non-atopic children.
  • Serum 25(OH)D3 levels and BMI values were measured and statistically analyzed between the two groups.

Main Results:

  • Children with VKC exhibited significantly lower mean serum vitamin D levels (14.06±5.02 ng/mL) compared to healthy controls (19.01±5.66 ng/mL).
  • The VKC group presented with a significantly higher mean BMI (17.1±2.5 kg/m² ) than the control group (16.5±2.3 kg/m²).
  • A significant negative correlation was found between serum vitamin D levels and BMI in the study population (Spearman's rho=-0.275; p=0.01).

Conclusions:

  • Children suffering from VKC demonstrate lower serum vitamin D concentrations and elevated BMI compared to their healthy peers.
  • These findings suggest a potential role for vitamin D deficiency and higher BMI in the pathophysiology or exacerbation of VKC in children.
  • Further research is warranted to explore the clinical implications and potential therapeutic strategies targeting vitamin D and BMI in VKC management.
Abstract

Related Concept Videos

Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
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...
6.1K
Connective Tissue Cell Types01:22

Connective Tissue Cell Types

Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
3.6K
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.8K
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
104
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
9
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
21