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Revista Chilena de Pediatría
Article . 2020 . Peer-reviewed
Data sources: Crossref
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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Andes Pediatrica
Article . 2020 . Peer-reviewed
License: CC BY
Data sources: Crossref
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Variación estacional de 25-hidroxi-vitamina D3, hormona paratiroidea y fosfatasa alcalina en niños escolares

Authors: Gonzalo Dominguez-Menendez; Helena Poggi; Rosario Moore; Ivonne D’Apremont; Monica Arancibia; Hernan Garcia; Dafne Segall; +3 Authors

Variación estacional de 25-hidroxi-vitamina D3, hormona paratiroidea y fosfatasa alcalina en niños escolares

Abstract

El principal rol de la vitamina D es la regulación del metabolismo del calcio, cuya principal fuente es la vitamina D3 que se obtiene principalmente por la acción de la luz ultravioleta (UV) en la piel.Objetivo: Evaluar las diferencias estacionales en las concentraciones de 25-hidroxi-vitamina D3 (25OHVitD3), hormona paratiroidea (PTH), fosfatasa alcalina (FA) y calcio en niños en edad escolar.Sujetos y Método: Se midieron las concentraciones de 25OHVitD3, PTH, FA y calcio en niños de 5 a 8 años, sin suplementación de Vitamina D, reclutados en Santiago de Chile (latitud -33.4372) en distintas estaciones del año. El estatus de VitD fue definido como suficiente con concentraciones de 25OHVitD3 > 20 ng/mL (50 nmol/L), insuficiente 12-20 ng/mL (30-50 nmol/L) y deficiente < 12 ng/ mL (30 nmol/L) en base a las recomendaciones del grupo de expertos del “Consenso Global para la Prevención y Manejo del Raquitismo Nutricional”.Resultados: En total participaron 133 niños (89 prematuros menor o igual a 32 semanas), 41 durante el verano, 28 en otoño, 35 en invierno y 29 en primavera. La diferencia de las medias entre el verano y el invierno fue de 9,6 ng/mL para 25OHVitD3 (p < 0,0001), -11,1 pg/mL para PTH (p < 0,0001) y -47,5 UI/mL para FA (p = 0,01). En las concentraciones de calcio no se observaron diferencias. El 97,6% de los sujetos fueron clasificados con estatus de suficiencia (> 20 ng/mL) en verano, lo que disminuyó significativamente en invierno (54,3%, p < 0,0001).Conclusiones: Las concentraciones de 25OHVitD3 disminuyeron en aproximadamente la mitad de los niños durante el invierno, lo que se vio acompañado de un aumento de la PTH y FA, asociado a concentraciones normales de calcio. De acuerdo a nuestros resultados, la suplementación con VitD en niños podría ser necesaria durante otoño e invierno 

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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