Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue
Existen evidencias de la participación del estrés oxidativo en la patogénesis del dengue grave. Sin embargo, los referentes observacionales presentan ciertas limitaciones metodológicas, las cuales pueden afectar su validez interna y externa. Materiales y métodos. Estudio de casos y controles, con pa...
- Autores:
-
Castro Orozco, Raimundo
- Tipo de recurso:
- Doctoral thesis
- Fecha de publicación:
- 2018
- Institución:
- Universidad de Cartagena
- Repositorio:
- Repositorio Universidad de Cartagena
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unicartagena.edu.co:11227/15527
- Acceso en línea:
- https://hdl.handle.net/11227/15527
http://dx.doi.org/10.57799/11227/145
- Palabra clave:
- Virus del dengue
Fiebre del dengue
Fiebre hemorrágica
Enfermedades por virus
- Rights
- openAccess
- License
- Derechos Reservados - Universidad de Cartagena, 2018
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dc.title.spa.fl_str_mv |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
title |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
spellingShingle |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue Virus del dengue Fiebre del dengue Fiebre hemorrágica Enfermedades por virus |
title_short |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
title_full |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
title_fullStr |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
title_full_unstemmed |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
title_sort |
Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengue |
dc.creator.fl_str_mv |
Castro Orozco, Raimundo |
dc.contributor.advisor.none.fl_str_mv |
Alvis Guzmán, Nelsón Rafael |
dc.contributor.author.none.fl_str_mv |
Castro Orozco, Raimundo |
dc.subject.armarc.none.fl_str_mv |
Virus del dengue Fiebre del dengue Fiebre hemorrágica Enfermedades por virus |
topic |
Virus del dengue Fiebre del dengue Fiebre hemorrágica Enfermedades por virus |
description |
Existen evidencias de la participación del estrés oxidativo en la patogénesis del dengue grave. Sin embargo, los referentes observacionales presentan ciertas limitaciones metodológicas, las cuales pueden afectar su validez interna y externa. Materiales y métodos. Estudio de casos y controles, con pacientes con dengue grave y dengue con signos de alarma, para examinar el comportamiento de los niveles séricos de carbonilos proteicos, hidroperóxidos lipídicos, superóxido dismutasa mitocondrial, citosólica y total, en pro de su evaluación como potenciales indicadores pronósticos de severidad en pacientes con diagnóstico de dengue, utilizando análisis de regresión logística binaria y probit binario, enmarcado en una estrategia de doble validación cruzada. Para tal fin, se seleccionó un grupo de derivación con muestras de suero de pacientes pediátricos procedentes de Barranquilla- Colombia y un grupo de validación externa con muestras de suero, de niños y adultos, remitidas al Instituto Nacional de Salud del Perú. Resultados. Los carbonilos proteicos fueron los únicos marcadores de estrés oxidativo que mostraron asociación con la severidad del dengue, tanto en niños como en adultos. En el grupo de derivación, el punto de corte óptimo fue estimado en 5,29 nmol/mg de proteína, y en el grupo de validación externa, fue de 5,77 nmol/mg de proteína. Conclusión. Los modelos pronósticos basados en estos dos umbrales diagnósticos presentaron una alta capacidad discriminatoria de severidad del dengue, reproducibilidad externa, transportabilidad geográfica y características de validez y seguridad diagnóstica, propias de las pruebas de cribado. |
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2018 |
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2018 |
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2022-08-16T21:06:45Z |
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2022-08-16T21:06:45Z |
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Trabajo de grado - Doctorado |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Derechos Reservados - Universidad de Cartagena, 2018 |
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Derechos Reservados - Universidad de Cartagena, 2018 https://creativecommons.org/licenses/by-nc/4.0/ Atribución-NoComercial 4.0 Internacional (CC BY-NC 4.0) http://purl.org/coar/access_right/c_abf2 |
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Universidad de Cartagena |
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Alvis Guzmán, Nelsón RafaelCastro Orozco, Raimundo2022-08-16T21:06:45Z2022-08-16T21:06:45Z2018https://hdl.handle.net/11227/15527http://dx.doi.org/10.57799/11227/145Existen evidencias de la participación del estrés oxidativo en la patogénesis del dengue grave. Sin embargo, los referentes observacionales presentan ciertas limitaciones metodológicas, las cuales pueden afectar su validez interna y externa. Materiales y métodos. Estudio de casos y controles, con pacientes con dengue grave y dengue con signos de alarma, para examinar el comportamiento de los niveles séricos de carbonilos proteicos, hidroperóxidos lipídicos, superóxido dismutasa mitocondrial, citosólica y total, en pro de su evaluación como potenciales indicadores pronósticos de severidad en pacientes con diagnóstico de dengue, utilizando análisis de regresión logística binaria y probit binario, enmarcado en una estrategia de doble validación cruzada. Para tal fin, se seleccionó un grupo de derivación con muestras de suero de pacientes pediátricos procedentes de Barranquilla- Colombia y un grupo de validación externa con muestras de suero, de niños y adultos, remitidas al Instituto Nacional de Salud del Perú. Resultados. Los carbonilos proteicos fueron los únicos marcadores de estrés oxidativo que mostraron asociación con la severidad del dengue, tanto en niños como en adultos. En el grupo de derivación, el punto de corte óptimo fue estimado en 5,29 nmol/mg de proteína, y en el grupo de validación externa, fue de 5,77 nmol/mg de proteína. Conclusión. Los modelos pronósticos basados en estos dos umbrales diagnósticos presentaron una alta capacidad discriminatoria de severidad del dengue, reproducibilidad externa, transportabilidad geográfica y características de validez y seguridad diagnóstica, propias de las pruebas de cribado.DoctoradoDoctor(a) en Medicina Tropicalapplication/pdfspaUniversidad de CartagenaFacultad de MedicinaCartagena de IndiasDoctorado en Medicina TropicalDerechos Reservados - Universidad de Cartagena, 2018https://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessAtribución-NoComercial 4.0 Internacional (CC BY-NC 4.0)http://purl.org/coar/access_right/c_abf2Biomarcadores de estrés oxidativo como indicadores pronósticos de severidad en pacientes con dengueTrabajo de grado - Doctoradoinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_db06Textinfo:eu-repo/semantics/doctoralThesishttps://purl.org/redcol/resource_type/TDhttp://purl.org/coar/version/c_970fb48d4fbd8a85Virus del dengueFiebre del dengueFiebre hemorrágicaEnfermedades por virusBhatt S, Gething PW, Brady OJ, Messina JP, Farlow AW, Moyes CL, et al. 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Increment of interleukin 6, tumour necrosis factor alpha, nitric oxide, C-reactive protein and apoptosis in dengue. Transactions of the Royal Society of Tropical Medicine and Hygiene. 2010;104(1):16-23Seet RC, Lee CY, Lim EC, Quek AM, Yeo LL, Huang SH, et al. Oxidative damage in dengue fever. Free radical biology & medicine. 2009;47(4):375-80.Lee CY, Seet RC, Huang SH, Long LH, Halliwell B. Different patterns of oxidized lipid products in plasma and urine of dengue fever, stroke, and Parkinson's disease patients: cautions in the use of biomarkers of oxidative stress. Antioxidants & redox signaling. 2009;11(3):407-20.Rajendiran S, Lakshamanappa HS, Zachariah B, Nambiar S. Desialylation of plasma proteins in severe dengue infection: possible role of oxidative stress. The American journal of tropical medicine and hygiene. 2008;79(3):372-7.Soundravally R, Sankar P, Bobby Z, Hoti SL. Oxidative stress in severe dengue viral infection: association of thrombocytopenia with lipid peroxidation. 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