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Serum concentrations of vitamin A and oxidative stress in critically ill patients with sepsis / Concentraciones séricas de vitamina A y estrés oxidativo en pacientes críticos con sepsis
Ribeiro Nogueira, C; Ramalho, A; Franca, CA Da Silva; Accioly, E; Lameu, E; David, C.
Affiliation
  • Ribeiro Nogueira, C; Universidade Federal do Rio de Janeiro (UFRJ). Instituto de Nutrição Josué de Castro (INJC). Vitamin A Research Group (Grupo de Pesquisa em Vitamina A-GPVA). Rio de Janeiro. Brazil
  • Ramalho, A; Universidade Federal do Rio de Janeiro (UFRJ). Instituto de Nutrição Josué de Castro (INJC). Vitamin A Research Group (Grupo de Pesquisa em Vitamina A-GPVA). Rio de Janeiro. Brazil
  • Franca, CA Da Silva; Universidade Federal do Rio de Janeiro (UFRJ). Instituto de Nutrição Josué de Castro (INJC). Vitamin A Research Group (Grupo de Pesquisa em Vitamina A-GPVA). Rio de Janeiro. Brazil
  • Accioly, E; Universidade Federal do Rio de Janeiro (UFRJ). Instituto de Nutrição Josué de Castro (INJC). Vitamin A Research Group (Grupo de Pesquisa em Vitamina A-GPVA). Rio de Janeiro. Brazil
  • Lameu, E; Hospital São Vicente de Paulo (HSVP). Head of Team of Enteral and Parenteral Nutritional Support. Brazil
  • David, C; UFRJ. Hospital Universitário Clementino Fraga Filho (HUCFF). s.c. Brazil
Nutr. hosp ; 24(3): 312-317, mayo-jun. 2009. ilus, tab
Article in En | IBECS | ID: ibc-134938
Responsible library: ES1.1
Localization: BNCS
ABSTRACT
Introduction: Sepsis is one of the main causes of mortality in patients in Intensive Care Units. As a result of the systemic inflammatory response and of the decrease of the aerobic metabolism in sepsis, the oxidative stress occurs. Vitamin A is recognized by the favorable effect that it exerts on the immune response to infections and antioxidant action. Objetive: To bring new elements for reviewing of the nutritional support addressed to critically ill patients with sepsis, with emphasis to vitamin A. Methods: Critically ill patients with sepsis had circulating concentrations of retinol, β-carotene, thiobarbituric acid-reactive substances (TBARS) and C-reactive protein (CRP) measured in Medicosurgical Intensive Care Unit in the city of Rio de Janeiro, Brazil. The patients were divided into two groups: patients who were receiving nutritional support and those without support. At the act of the patient's admission, APACHE II score was calculated. Results: 46 patients were studied (with diet n = 24 and without diet n = 22). Reduced levels of retinol and β-carotene were found in 65.2% and 73.9% of the patients, respectively. Among the patients who presented lower concentrations of CRP it was found higher β-carotene inadequacy (64.8%) and 50% of retinol inadequacy. There was no significant difference as regards retinol, TBARS and APACHE II levels among the patients with and without nutritional support. However, higher levels of CRP (p = 0.001) and lower levels of serum β-carotene (p = 0.047) were found in patients without nutritional support. Conclusions: Septic patients presented an important inadequacy of retinol and β-carotene. The present study bring elements to the elaboration/review of the nutritional protocol directed to the group studied, especially as regards vitamin A intake (AU)
RESUMEN
Introducción: La sepsis es una de las principales causas de mortalidad en pacientes en las Unidades de Cuidados Intensivos. Como consecuencia de la respuesta inflamatoria sistémica y de la disminución del metabolismo aeróbico en la sepsis se produce estrés oxidativo. La vitamina A es reconocida por el efecto favorable que ejerce sobre la respuesta inmunitaria a las infecciones y por su acción antioxidante. Objetivo: Aportar nuevos elementos a la hora de revisar el soporte nutricional de los pacientes críticos con sepsis, con un énfasis sobre la vitamina A. Métodos: Se midieron las concentraciones circulantes de retinol, β-caroteno, ácido tiobarbitúrico-sustancias reactivas (ATBSR) y proteína C reactiva (PCR) de pacientes críticos con sepsis en la Unidad de Cuidados Intensivos Medicoquirúrgica de la ciudad de Río de Janeiro, Brasil. Se dividió a los pacientes en dos grupos: pacientes que recibían soporte nutricional y aquellos que no. Se calculó la puntuación APACHE en el momento de su ingreso. Resultados: Se estudiaron 46 pacientes (con dieta n = 24 y sin dieta n = 22). Se hallaron concentraciones disminuidas de retinol y β-caroteno en el 65,2% y 73,9% de los pacientes, respectivamente. De entre los pacientes que presentaron las menores concentraciones de PCR, se halló una mayor inadecuación de β-caroteno (64,8%) y un 50% de inadecuación de retinol. No hubo diferencias significativas con respecto al retinol, ATBSR y las puntuaciones APACHE II entre los pacientes con y sin soporte nutricional. Sin embargo, se hallaron mayores concentraciones de PCR (p = 0,001) y menores concentraciones séricas de β-caroteno (p = 0,047) en los pacientes sin soporte nutricional. Conclusiones: Los pacientes sépticos presentaron una inadecuación importante de retinol y β-caroteno. El presente estudio aporta elementos a la elaboración/revisión del protocolo nutricional dirigido al grupo estudiado, especialmente con respecto de la toma de vitamina A (AU)
Subject(s)
Full text: 1 Collection: 06-national / ES Database: IBECS Main subject: Vitamin A / Sepsis / Oxidative Stress Type of study: Guideline Limits: Humans Language: En Journal: Nutr. hosp Year: 2009 Document type: Article
Full text: 1 Collection: 06-national / ES Database: IBECS Main subject: Vitamin A / Sepsis / Oxidative Stress Type of study: Guideline Limits: Humans Language: En Journal: Nutr. hosp Year: 2009 Document type: Article