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Especies rickettsiales en casos humanos con síndrome febril agudo inespecífico en Perú / Rickettsial species in human cases with non-specific acute febrile syndrome in Peru
Palacios-Salvatierra, Rosa; Cáceres-Rey, Omar; Vásquez-Domínguez, Andrés; Mosquera-Visaloth, Patricia; Anaya-Ramírez, Elizabeth.
  • Palacios-Salvatierra, Rosa; Instituto Nacional de Salud. Centro Nacional de Salud Pública. Lima. PE
  • Cáceres-Rey, Omar; Instituto Nacional de Salud. Centro Nacional de Salud Pública. Lima. PE
  • Vásquez-Domínguez, Andrés; Instituto Nacional de Salud. Centro Nacional de Salud Pública. Lima. PE
  • Mosquera-Visaloth, Patricia; Instituto Nacional de Salud. Centro Nacional de Salud Pública. Lima. PE
  • Anaya-Ramírez, Elizabeth; Instituto Nacional de Salud. Centro Nacional de Salud Pública. Lima. PE
Rev. peru. med. exp. salud publica ; 35(4): 630-635, oct.-dic. 2018. tab
Article in Spanish | LILACS | ID: biblio-985789
RESUMEN
RESUMEN Con el objetivo de caracterizar molecularmente aislamientos rickettsiales procedentes de humanos con síndrome febril agudo inespecífico se realizó un estudio descriptivo transversal, con aislamientos propagados en cultivos celulares Vero ATCC y líneas alternativas, verificando viabilidad mediante Inmunofluoresencia Indirecta (IFI). Previa extracción del ADN, se amplificó el gen gltA mediante PCR convencional, y se analizó su secuencia. Doce aislamientos fueron amplificados, cinco con suficiente ADN para secuenciarlos, evidenciando compatibilidad con R. asembonensis en cuatro, y estrecha identidad con Coxiella burnetti en uno. Al menos tres de siete líneas celulares alternativas mostraron rendimiento significativo en sub cultivos. Se identificó R. asembonensis en cuatro aislamientos de humanos con síndrome febril agudo inespecífico, procedentes de las regiones de Ayacucho, Cajamarca y Madre de Dios en Perú, y Coxiella burnetti en uno procedente de la región Loreto.
ABSTRACT
ABSTRACT With the objective of molecularly characterizing rickettsial isolates from humans with non-specific acute febrile syndrome, a cross-sectional descriptive study was conducted, with isolates propagated in Vero ATCC cellular cultures and alternative lines, verifying the viability by means of Indirect Immunofluorescence. Prior to DNA extraction, the gltA gene was amplified by means of conventional PCR, and its sequence was analyzed. Twelve isolates were amplified, five with sufficient DNA so as to sequence them, exhibiting compatibility with R. asembonensis in four, and a close identity with Coxiella burnetti in one. At least three of seven alternative cellular lines showed significant yield in sub-cultures. R. asembonensis was identified in four isolates of humans with non-specific acute febrile syndrome, coming from the regions of Ayacucho, Cajamarca, and Madre de Dios in Peru, and Coxiella burnetti in one coming from the Loreto region.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Rickettsia / Rickettsia Infections / DNA, Bacterial / Fever Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Humans Country/Region as subject: South America / Peru Language: Spanish Journal: Rev. peru. med. exp. salud publica Journal subject: Public Health Year: 2018 Type: Article Affiliation country: Peru Institution/Affiliation country: Instituto Nacional de Salud/PE

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Full text: Available Index: LILACS (Americas) Main subject: Rickettsia / Rickettsia Infections / DNA, Bacterial / Fever Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Humans Country/Region as subject: South America / Peru Language: Spanish Journal: Rev. peru. med. exp. salud publica Journal subject: Public Health Year: 2018 Type: Article Affiliation country: Peru Institution/Affiliation country: Instituto Nacional de Salud/PE