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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Analizar si existe relaci&#243;n entre los valores plasm&#225;ticos del factor de necrosis tumoral &#40;TNF-&#945;&#41; y la mol&#233;cula de adhesi&#243;n intercelular circulante tipo 1 &#40;cICAM-1&#41; con valores de carga viral plasm&#225;tica &#40;CV&#41; en ni&#241;os infectados verticalmente por el VIH&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Estudiamos 44 ni&#241;os VIH-1 y un grupo control de 38 ni&#241;os no infectados por el VIH-1&#46; Las subpoblaciones celulares se realizaron por citometr&#237;a de flujo&#44; las concentraciones de TNF-&#945; y cICAM-1 se cuantificaron por t&#233;cnicas de enzimoinmunoan&#225;lisis y la CV se cuantific&#243; mediante un an&#225;lisis molecular est&#225;ndar comercial&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Los ni&#241;os infectados por el VIH-1 presentaron valores significativamente m&#225;s altos de TNF-&#945; y cICAM-1 que los ni&#241;os del grupo control&#46; Dividimos a los ni&#241;os VIH-1 seg&#250;n los valores de CV&#46; Los ni&#241;os VIH-1 con CV mayor de 50&#46;000 copias&#47;ml produjeron m&#225;s TNF-&#945; &#40;12&#44;83&#59; IC del 95&#37;&#58; 24&#44;71-0&#44;95 pg&#47;ml&#41; y cICAM-1 &#40;248&#44;94&#59; IC del 95&#37;&#58; 419&#44;01-78&#44;84 ng&#47;ml&#41; que los ni&#241;os VIH-1 con CV inferior a 50&#46;000 copias&#47;ml&#44; de tal forma que se produc&#237;a un incremento de 6&#44;57 pg&#47;ml de TNF-&#945; y de 119&#44;97 ng&#47;ml de cICAM-1 por cada log10 de CV&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Nuestros datos indican que a medida que en el plasma de los ni&#241;os VIH-1 se incrementan los valores de CV tambi&#233;n se incrementan los valores de TNF-&#945; y cICAM-1&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">To assess the relationship among plasma TNF-&#945; and cICAM-1 levels and plasma viral load &#40;VL&#41; in HIV-infected children and to compare these values with those of healthy non-HIV infected children&#46;</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">We studied 44 HIV-infected children and 38 non-HIV-infected children&#46; The VL was quantified using standard molecular assay&#46; CD4 and CD8 lymphocyte subpopulations were determined by flow cytometry&#46; TNF-&#945; and cICAM-1 were quantified using commercially available specific enzyme-linked immunosorbent assay &#40;ELISA&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Levels of TNF-&#945; and cICAM-1 were higher in HIV-infect-ed children than in non-HIV infected children&#46; HIV-infected children with VL &#62; 50000 copies&#47;ml had higher levels of TNF-&#945; &#40;12&#46;83&#59; 95&#37; CI&#58; 24&#46;71 to 0&#46;95 pg&#47;ml&#41; and cICAM-1 &#40;248&#46;94&#59; 95&#37; CI&#58; 419&#46;01 to 78&#46;84 ng&#47;ml&#41; than HIV-infected children with VL &#60; 50000 copies&#47;ml&#46; Interestingly&#44; we found an increase of 6&#46;57 pg&#47;ml of TNF-&#945; and 119&#46;97 ng&#47;ml of cICAM-1 levels for each log10 of VL&#46;</p> <span class="elsevierStyleSectionTitle">conclusions</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">HIV-infected children had higher levels of TNF-&#945; and cICAM-1 than healthy controls&#46; Our data indicate a positive correlation among plasma TNF-a and cICAM-1 and VL levels&#46;</p>"
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Vol. 52. Núm. 6.
Páginas 501-506 (junio 2000)
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Vol. 52. Núm. 6.
Páginas 501-506 (junio 2000)
Acceso a texto completo
Correlación entre carga viral elevada y concentraciones de TNF-α y cICAM-1 en el plasma de niños infectados por el VIH-1
Relationship between high plasma viral load and levels of tnf-a and cicam-1 in vertically hiv-1 infected children
Visitas
6374
S. Resinoa, J.L. Jiméneza, J.M. Bellóna, D. Gurbindob, M.A. Muñoz-Fernándeza,
Autor para correspondencia
Mmunoz@cbm.uam.es

Correspondencia: Hospital General Universitario Gregorio Marañón. División de Inmunología. Dr. Esquerdo, 46. 28007 Madrid
a Secciones de Inmunología Hospital General Universitario Gregorio Marañón. Madrid.
b Inmuno-Pediatría. Hospital General Universitario Gregorio Marañón. Madrid.
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Estadísticas
Objetivo

Analizar si existe relación entre los valores plasmáticos del factor de necrosis tumoral (TNF-α) y la molécula de adhesión intercelular circulante tipo 1 (cICAM-1) con valores de carga viral plasmática (CV) en niños infectados verticalmente por el VIH.

Pacientes y métodos

Estudiamos 44 niños VIH-1 y un grupo control de 38 niños no infectados por el VIH-1. Las subpoblaciones celulares se realizaron por citometría de flujo, las concentraciones de TNF-α y cICAM-1 se cuantificaron por técnicas de enzimoinmunoanálisis y la CV se cuantificó mediante un análisis molecular estándar comercial.

Resultados

Los niños infectados por el VIH-1 presentaron valores significativamente más altos de TNF-α y cICAM-1 que los niños del grupo control. Dividimos a los niños VIH-1 según los valores de CV. Los niños VIH-1 con CV mayor de 50.000 copias/ml produjeron más TNF-α (12,83; IC del 95%: 24,71-0,95 pg/ml) y cICAM-1 (248,94; IC del 95%: 419,01-78,84 ng/ml) que los niños VIH-1 con CV inferior a 50.000 copias/ml, de tal forma que se producía un incremento de 6,57 pg/ml de TNF-α y de 119,97 ng/ml de cICAM-1 por cada log10 de CV.

Conclusiones

Nuestros datos indican que a medida que en el plasma de los niños VIH-1 se incrementan los valores de CV también se incrementan los valores de TNF-α y cICAM-1.

Palabras clave:
VIH
Niños
Carga viral
TNF-α
cICAM-1
Objective

To assess the relationship among plasma TNF-α and cICAM-1 levels and plasma viral load (VL) in HIV-infected children and to compare these values with those of healthy non-HIV infected children.

Patients and methods

We studied 44 HIV-infected children and 38 non-HIV-infected children. The VL was quantified using standard molecular assay. CD4 and CD8 lymphocyte subpopulations were determined by flow cytometry. TNF-α and cICAM-1 were quantified using commercially available specific enzyme-linked immunosorbent assay (ELISA).

Results

Levels of TNF-α and cICAM-1 were higher in HIV-infect-ed children than in non-HIV infected children. HIV-infected children with VL > 50000 copies/ml had higher levels of TNF-α (12.83; 95% CI: 24.71 to 0.95 pg/ml) and cICAM-1 (248.94; 95% CI: 419.01 to 78.84 ng/ml) than HIV-infected children with VL < 50000 copies/ml. Interestingly, we found an increase of 6.57 pg/ml of TNF-α and 119.97 ng/ml of cICAM-1 levels for each log10 of VL.

conclusions

HIV-infected children had higher levels of TNF-α and cICAM-1 than healthy controls. Our data indicate a positive correlation among plasma TNF-a and cICAM-1 and VL levels.

Key words:
HIV
Children
Viral load
TNF-a
cICAM-1
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