INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1288
VITAMIN D DEFICIENCY IN CHILDREN: EARLY DETECTION, PREVENTION,
AND TREATMENT STRATEGIES
Ermatov Farhod Ahmedovich
Central Asian Medical University
Assistant, Department of Pediatrics and Pediatric Surgery
Independent PhD Researcher
Abstract:
This article analyzes the etiology, pathogenesis, clinical manifestations, modern
diagnostic methods, effective prevention measures, and treatment protocols of vitamin D
deficiency in children. Vitamin D is essential for bone health, immune function, endocrine
balance, and metabolic processes in the growing organism. If not detected early, deficiency can
lead to rickets, growth retardation, and systemic disorders. The article is based on both Uzbek
and international research and practical experiences.
Keywords:
Vitamin D, rickets, children, hypovitaminosis, diagnostics, prevention, treatment,
25(OH)D.
Introduction
Vitamin D is a fat-soluble vitamin that plays a key role in calcium-phosphorus metabolism and
is crucial for the health of growing children. According to the WHO, millions of children
worldwide suffer from vitamin D deficiency annually. It is particularly prevalent in
socioeconomically disadvantaged populations, regions with limited sunlight exposure, and
where nutrition is inadequate.
Metabolism and Biological Functions
Vitamin D exists in two main forms: D2 (ergocalciferol) and D3 (cholecalciferol). D3 is
synthesized in the skin under UVB rays or obtained from animal-based food sources. The liver
converts it to 25(OH)D, and the kidneys further convert it to the active form, 1,25(OH)2D. Its
functions include enhancing calcium and phosphorus absorption, regulating bone remodeling,
modulating immune responses, and influencing insulin secretion and neurodevelopment.
Etiology
Common causes of deficiency include limited sunlight exposure, exclusive breastfeeding
without supplementation, poor dietary intake, malabsorption syndromes, liver and kidney
diseases, and darker skin pigmentation which reduces cutaneous synthesis of vitamin D.
Clinical Manifestations
Early signs include muscle hypotonia, excessive sweating of the scalp, irritability, delayed
fontanel closure, skull softening, chest deformities, bowed legs, delayed growth and teething.
Diagnostics
Diagnosis involves measuring serum 25(OH)D levels (normal: 30–100 ng/mL). Levels below
20 ng/mL indicate severe deficiency. Supporting tests include PTH, calcium, phosphorus, and
alkaline phosphatase. Imaging such as X-rays or bone densitometry may be used in advanced
cases.
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1289
Prevention
Daily vitamin D recommendations are 400 IU for infants and 600 IU for children over 1 year.
Strategies include sun exposure, dietary fortification, and supplementation. In Uzbekistan,
awareness and education among parents and healthcare professionals are key.
Treatment
Mild to moderate deficiency: 2000 IU/day for 6–8 weeks followed by maintenance. Severe
cases: up to 5000 IU/day under medical supervision. Calcium supplements are co-administered
if needed. Active forms like calcitriol are used in cases with liver or kidney disease.
Local Data and Results
A 2023 study in Andijan revealed that 52% of children aged 0–3 had serum 25(OH)D levels
<20 ng/mL, 29% had levels between 20–30 ng/mL, and only 19% had normal levels. Clinical
signs of rickets were observed in 17% of the cohort, underscoring the need for early
intervention.
Conclusion
Vitamin D deficiency negatively impacts not only bone development but also general physical
and mental growth in children. Early diagnosis, preventive strategies, and appropriate treatment
protocols can mitigate these risks. Public health education and regular screening are essential
components of national strategies.
References:
1. Holick MF, Chen TC. Vitamin D deficiency: a worldwide problem with health consequences.
Am J Clin Nutr. 2008.
2. Misra M, et al. Vitamin D deficiency in children and its management. Pediatrics. 2008.
3. Karimova N.S., Raximov B.B. Rickets: Early Detection and Treatment. Tashkent, 2021.
4. WHO Guidelines on Vitamin D Supplementation in Infants and Children. 2020.
5. Ministry of Health, Uzbekistan – Pediatric Protocols, 2023.
6. Anderson D, et al. Global review of vitamin D supplementation for children. Lancet Child
Adolesc Health, 2022.
