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A review of vitamin D deficiency and vitamin D receptor polymorphisms in endocrine-related disorders
Nur Faten Hafizah Rosli1, Noor Shafina Mohd Nor1,2,3, Rose Adzrianee Adnan4
1Institute of Medical Molecular Biotechnology (IMMB), Faculty of Medicine, Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, Sungai Buloh, Malaysia.
Abstract:
The endocrine system is a complex network of glands that produce and release hormones that regulate various physiological processes. In the past few decades, the human skin has been identified as an important peripheral endocrine organ that is the main site for the synthesis of vitamin D through exposure to sunlight. Mutations in downstream vitamin D-related gene pathways are associated with disease development. The vitamin D receptor (VDR) gene, which regulates the pleiotropic effects of vitamin D, has been extensively studied in adult populations. Several studies have reported the prevalence of vitamin D deficiency in children and adolescents. With changes in socioeconomic status and lifestyle, vitamin D-deficient individuals are prone to developing the disease at a young age. However, geographical and racial differences affect the association between VDR gene polymorphisms and vitamin D endocrine disorders, explaining the nonconsensus effects of polymorphisms and their association with disease development across populations. In this review, we discuss the connection between the vitamin D endocrine system and polymorphisms in the gene encoding VDR in children and adolescents, focusing on its effects on growth, puberty, insulin resistance, and the immune system.
Insights
Vitamin D deficiency is common in children and adolescents, impacting growth and immunity. This review explores how vitamin D receptor (VDR) gene variations influence these health outcomes in young populations.
Area of Science:
- Endocrinology
- Genetics
- Pediatrics
Background:
- The skin acts as a peripheral endocrine organ, synthesizing vitamin D upon sun exposure.
- Vitamin D plays a crucial role in numerous physiological processes, with its effects mediated by the vitamin D receptor (VDR).
- Vitamin D deficiency is increasingly prevalent in children and adolescents, linked to various health issues.
Purpose of the Study:
- To review the association between vitamin D endocrine system, VDR gene polymorphisms, and health in children and adolescents.
- To elucidate the impact of VDR gene variations on growth, puberty, insulin resistance, and immune function in pediatric populations.
- To address geographical and racial variations influencing VDR polymorphism-disease associations.
Main Methods:
- Literature review focusing on studies concerning vitamin D, VDR gene, and pediatric health.
- Analysis of research examining the relationship between VDR polymorphisms and endocrine-related disorders in children and adolescents.
- Synthesis of data on the pleiotropic effects of vitamin D and its receptor.
Main Results:
- VDR gene polymorphisms exhibit variable associations with vitamin D endocrine disorders across different populations.
- Geographical and racial factors contribute to the heterogeneity in VDR polymorphism effects.
- Vitamin D deficiency and VDR gene variations can impact pediatric growth, pubertal development, insulin resistance, and immune responses.
Conclusions:
- VDR gene polymorphisms are significant factors in pediatric vitamin D endocrine health.
- Understanding these genetic variations is crucial for addressing health disparities and disease development in children and adolescents.
- Further research is needed to clarify population-specific VDR polymorphism impacts on pediatric health outcomes.
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