Deficiencia de vitamina D: ¿Factor de riesgo de síndrome metabólico?

• MARVIN ISAAC QUERALES ^[1] ; MARÍA ELENA CRUCES ^[1] ; SUSAN ROJAS ^[1] ; LISSETTE SÁNCHEZ ^[1]
  1. [1] Universidad de Carabobo

     Universidad de Carabobo

     Venezuela

     
• Localización: Revista Médica de Chile, ISSN-e 0034-9887, Vol. 138, Nº. 10, 2010, págs. 1312-1318
• Idioma: español
• Títulos paralelos:
  • Association between vitamin D deficiency and metabolic syndrome
• Enlaces
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• Resumen

  • Vitamin D has an essential role in calcium metabolism and bone health. Vitamin D3 or cholecalciferol is synthesized from 7-dehydrocholesterol or provitamin D3, by sunlight ultraviolet radiation to the skin. 7-dehydrocholesterol is subsequently hydroxylated in the liver and then in the kidney to produce 1,25-(OH)2D3, the active metabolite that binds to specific receptors (VDR) in target tissues, mainly bone and intestine. Other tissues, such as the immune and cardiovascular system, have also VDR. Vitamin D deficiency can induce rickets in children and osteomalacia and osteoporosis in adults. A possible inverse association between vitamin D levels and the prevalence of metabolic syndrome has been proposed. Vitamin D deficiency increases the risk of type 1 diabetes, insulin resistance, and hypertension, key components of this syndrome. However, other studies have not confirmed this association. Further clinical and experimental studies are needed to ascertain the role of vitamin D in metabolic syndrome.