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Déficit de vitamina D. Revisión epidemiológica actual / Vitamin D deficiency. Current epidemiological review
Barberán M, Marcela; Aguilera C, Germán; Brunet L, Luis; Maldonado C, Felipe.
  • Barberán M, Marcela; Hospital Clínico Universidad de Chile. Sección de Endocrinología. Santiago. CL
  • Aguilera C, Germán; Hospital Clínico Universidad de Chile. Sección de Anestesiología y Reanimación. Santiago. CL
  • Brunet L, Luis; Hospital Clínico Universidad de Chile. Servicio de Anestesiología y Reanimación. Santiago. CL
  • Maldonado C, Felipe; Hospital Clínico Universidad de Chile. Sección de Anestesiología y Reanimación. Santiago. CL
Rev. Hosp. Clin. Univ. Chile ; 25(2): 127-134, 2014.
Artigo em Espanhol | LILACS | ID: biblio-988463
ABSTRACT
Vitamin D is a liposoluble hormone that exists in two molecular forms. Ergocalciferol (vitamin D-2) and colecalciferol (vitamin D-3). Vitamin D-3 is produced in the skin by the action of UV-B radiation. Both forms are metabolized by the liver to 25-hydroxy-Vit D (25OHD) and later in the kidney to the active form 1,25-dihydroxy-Vit D. This form promotes bone mineralization by intestinal absorption of calcium and phosphate. Normal levels of 25OHD are associated with less fracture, normal neuromuscular and immune function and possibly have a preventive effect on certain types of cancer. The Endocrine Society's Clinical Practice Guidelines recommends that optimal plasma levels of 25OHD are above 30 ng/ml, insufficiency between 21 and 29 ng/ml and deficiency below 20 ng/ml. The prevalence rate of 25OHD deficit is about 2 to 90% in different populations. Risk factors of Vitamin D deficit like year season, skin pigmentation, sunlight exposition, use of sunblock and inadecuate Vitamin D ingestion, together with different measurement techniques explain the variability of results between epidemiological studies. An important risk group is the health professionals that are not exposed to sunlight. There are no studies that describe the prevalence in this population in Chile. (AU)
Assuntos
Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Deficiência de Vitamina D Tipo de estudo: Guia de Prática Clínica / Fatores de risco Limite: Humanos País/Região como assunto: América do Sul / Chile Idioma: Espanhol Revista: Rev. Hosp. Clin. Univ. Chile Assunto da revista: Medicina Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Chile Instituição/País de afiliação: Hospital Clínico Universidad de Chile/CL

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Deficiência de Vitamina D Tipo de estudo: Guia de Prática Clínica / Fatores de risco Limite: Humanos País/Região como assunto: América do Sul / Chile Idioma: Espanhol Revista: Rev. Hosp. Clin. Univ. Chile Assunto da revista: Medicina Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Chile Instituição/País de afiliação: Hospital Clínico Universidad de Chile/CL