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      El índice neutrófilo/linfocito como marcador de disfunción sistémica endotelial en sujetos asintomáticos Translated title: The neutrophil-to-lymphocyte ratio as a marker of systemic endothelial dysfunction in asymptomatic subjects

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          Abstract

          Resumen Fundamento y objetivo: El índice neutrófilo/linfocito es un marcador inflamatorio de valor pronóstico en enfermedades cardiovasculares. El objetivo del presente trabajo es valorar la asociación entre el índice neutrófilo/linfocito y la alteración del cociente albúmina/creatinina urinario como marcador precoz de disfunción endotelial sistémica asociada a enfermedad microvascular y riesgo cardiovascular, en sujetos asintomáticos. Materiales y métodos Se realizó un estudio transversal en 1.816 sujetos asintomáticos. Se excluyó del a estudio aquellos pacientes que presentaron antecedentes de enfermedad cardiovascular, los que recibían tratamiento con fármacos antiproteinúricos (inhibidores de la enzima conversora de angiotensina y antagonistas de los receptores de la angiotensina II) y aquellos que presentaron un cociente albúmina/creatinina superior a 300 mg/dL. La variable desenlace del estudio fue la alteración del cociente albúmina/creatinina urinario. Resultados: El índice neutrófilo/linfocito resultó significativamente asociado a la alteración del cociente albúmina/creatinina urinario, tanto en el estudio univariante como en el multivariante, independientemente de otros cofactores como la edad, la hipertensión arterial, la diabetes, la dislipidemia o el filtrado glomerular patológico. El análisis de la sensibilidad y la especificidad de distintos niveles del índice neutrófilo/linfocito permitió generar 3 grupos de riesgo de alteración del cociente albúmina/creatina urinario: riesgo bajo con un cociente neutrófilo/linfocito < 1,5, riesgo intermedio con cociente neutrófilo/linfocito entre 1,5 y 3 y riesgo alto con un cociente neutrófilo/linfocito > 3. La proporción relativa de alteración del cociente albúmina/creatinina urinario, en los 3 grupos de riesgo, aumentaba en razón del valor del índice neutrófilo/linfocito de forma independiente al resto de cofactores. Conclusiones: El índice neutrófilo/linfocito surge como un potencial marcador de disfunción endotelial sistémica económico, rápido, no invasivo e independiente de otros factores conocidos, en sujetos asintomáticos.

          Translated abstract

          Abstract Background and objective: The neutrophil-to-lymphocyte ratio has demonstrated to be a prognostic inflammatory marker in cardiovascular disease. The objective of this study is to evaluate the association between neutrophil-to-lymphocyte ratio and pathologic urinary albumin/creatinine ratio as an early marker of cardiovascular risk and systemic endothelial dysfunction, associated with microvascular disease, in asymptomatic subjects. Materials and methods: A unicenter cross-sectional study was conducted, including 1816 asymptomatic subjects. Patients with previous cardiovascular disease, those who were treated with ACE inhibitors and/or angiotensin II receptor blockers and patients with albumin/creatinine ratio over 300 mg/g were excluded. The outcome of the study was the presence of a pathologic urinary albumin/creatinine ratio. Results: The neutrophil-to-lymphocyte ratio was significantly associated with altered urinary albumin/creatinine ratio in the univariate analysis and after adjustment for other known endothelial and cardiovascular risk factors (age, hypertension, dyslipidaemia, diabetes or altered glomerular filtration rate). Based on the sensitivity and specificity of different neutrophil-to-lymphocyte ratio thresholds, 3 risk groups were created for altered urinary albumin/creatinine ratio: low risk in those with neutrophil-to-lymphocyte ratio < 1.5, intermediate risk in patients between 1.5 and 3, and high risk in those with neutrophil-to-lymphocyte ratio > 3. These groups were found to have a statistically significant and independent prognostic power for altered urinary albumin/creatinine ratio in asymptomatic patients. Conclusions: The neutrophil-to-lymphocyte ratio appears to be a cost-efficient, non-invasive and independent potential marker of systemic endothelial dysfunction in asymptomatic subjects.

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          Author and article information

          Contributors
          Role: ND
          Role: ND
          Role: ND
          Role: ND
          Journal
          nefrologia
          Nefrología (Madrid)
          Nefrología (Madr.)
          Sociedad Española de Nefrología (Cantabria, Santander, Spain )
          0211-6995
          1989-2284
          August 2016
          : 36
          : 4
          : 397-403
          Affiliations
          [1] Pamplona Navarra orgnameClínica Universidad de Navarra orgdiv1Departamento de Medicina Interna España
          Article
          S0211-69952016000400397
          10.1016/j.nefro.2015.10.018
          26923388
          db45e092-f168-4091-859a-b8cbbcfa9354

          This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

          History
          : 02 July 2015
          : 28 October 2015
          Page count
          Figures: 0, Tables: 0, Equations: 0, References: 37, Pages: 7
          Product

          SciELO Spain


          Asymptomatic subjects,Endothelial dysfunction,Cardiovascular risk,Índice neutrófilo/linfocito,Cociente albúmina/creatinina urinario,Disfunción endotelial,Riesgo cardiovascular,Sujetos asintomáticos,Neutrophil-to-lymphocyte ratio,Urinary albumin/creatinine ratio

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