2017
Clinical and parasitological factors in parasite persistence after treatment and clinical cure of cutaneous leishmaniasis
Martínez-Valencia AJ, Daza-Rivera CF, Rosales-Chilama M, Cossio A, Rincón E, Desai MM, Saravia NG, Gómez MA. Clinical and parasitological factors in parasite persistence after treatment and clinical cure of cutaneous leishmaniasis. PLOS Neglected Tropical Diseases 2017, 11: e0005713. PMID: 28704369, PMCID: PMC5526576, DOI: 10.1371/journal.pntd.0005713.Peer-Reviewed Original ResearchConceptsCutaneous leishmaniasisParasite persistencePercent of patientsInitiation of treatmentEnd of treatmentViability of LeishmaniaDisease reactivationTonsillar mucosaClinical cureClinical resolutionTreatment initiationProtective immunityMeglumine antimoniatePersistent infectionMucosal tissuesPrevious episodesTherapeutic cureParasitological factorsProtective factorsPatientsParasitological parametersTreatmentLeishmaniasisWeeksHigher proportion
2012
Human Macrophage Response to L. (Viannia) panamensis: Microarray Evidence for an Early Inflammatory Response
Ramírez C, Díaz-Toro Y, Tellez J, Castilho TM, Rojas R, Ettinger NA, Tikhonova I, Alexander ND, Valderrama L, Hager J, Wilson ME, Lin A, Zhao H, Saravia NG, McMahon-Pratt D. Human Macrophage Response to L. (Viannia) panamensis: Microarray Evidence for an Early Inflammatory Response. PLOS Neglected Tropical Diseases 2012, 6: e1866. PMID: 23145196, PMCID: PMC3493378, DOI: 10.1371/journal.pntd.0001866.Peer-Reviewed Original ResearchConceptsMRNA abundance profilesMonocyte-derived macrophagesRegulation of genesDistinct biologic responsesAbundance profilesL. panamensisDifferential gene expressionEarly time pointsMacrophage responseEarly macrophage responseImmune responseLeishmania speciesHuman monocyte-derived macrophagesMicroarray evidenceOutset of infectionGene regulationActivation of PKCHuman macrophage responseGene expressionLeishmania panamensis infectionTime pointsCellular responsesAdaptive immune responsesG proteinsEarly inflammatory response
1998
Permissiveness of human monocytes and monocyte-derived macrophages to infection by promastigotes of Leishmania (Viannia) panamensis.
Bosque F, Milon G, Valderrama L, Saravia N. Permissiveness of human monocytes and monocyte-derived macrophages to infection by promastigotes of Leishmania (Viannia) panamensis. Journal Of Parasitology 1998, 84: 1250-6. PMID: 9920322, DOI: 10.2307/3284682.Peer-Reviewed Original ResearchConceptsPercentage of cellsBlood monocytesInduction of differentiationLeishmania panamensis infectionHuman peripheral blood monocytesHistiocytic cell line UDifferentiated macrophagesExpression of CD68Number of amastigotesPeripheral blood monocytesOutcome of infectionSite of infectionMonocyte-derived macrophagesL. panamensis promastigotesMononuclear phagocytic cellsPhorbol myristate acetatePanamensis infectionNumber of parasitesCell line UBone marrowFresh monocytesLeishmania panamensisMonocytesResident macrophagesStages of differentiation
1993
Epidemiology of Cutaneous Leishmaniasis in Colombia: A Longitudinal Study of the Natural History, Prevalence, and Incidence of Infection and Clinical Manifestations
Weigle K, Santrich C, Martinez F, Valderrama L, Saravia N. Epidemiology of Cutaneous Leishmaniasis in Colombia: A Longitudinal Study of the Natural History, Prevalence, and Incidence of Infection and Clinical Manifestations. The Journal Of Infectious Diseases 1993, 168: 699-708. PMID: 8354912, DOI: 10.1093/infdis/168.3.699.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge FactorsAnimalsAntigens, ProtozoanChildChild, PreschoolCohort StudiesColombiaFemaleHumansIncidenceInfantInfant, NewbornLeishmania braziliensisLeishmaniasis, CutaneousLongitudinal StudiesMaleMiddle AgedModels, BiologicalProspective StudiesRespiratory SystemRural PopulationSex FactorsSkinSkin TestsTime FactorsConceptsLeishmanin skin test conversionMost primary infectionsSkin test conversionBurden of diseaseIncidence of infectionLeishmaniasis control programClinical manifestationsProspective studyPrimary infectionTest conversionLeishmania infectionIncidence rateTypical scarCutaneous leishmaniasisEndemic areasNew infectionsLeishmaniasis casesNatural historyInfectionLeishmaniasisNaive hostsLongitudinal studyLesionsOne-thirdIncidence
1991
Metastatic capability of Leishmania (Viannia) panamensis and Leishmania (Viannia) guyanensis in golden hamsters.
Martinez J, Travi B, Valencia A, Saravia N. Metastatic capability of Leishmania (Viannia) panamensis and Leishmania (Viannia) guyanensis in golden hamsters. Journal Of Parasitology 1991, 77: 762-8. PMID: 1919926, DOI: 10.2307/3282713.Peer-Reviewed Original ResearchConceptsCutaneous metastatic lesionsMetastatic lesionsFrequency of isolationLymph nodesL. panamensisL. guyanensisLeishmania panamensisLeishmania guyanensisGolden hamstersDistant lymph nodesCutaneous metastasesPrimary lesionLymphatic disseminationExperimental infectionLesionsMetastatic capabilityHuman casesTissue samplesHamstersParasite culturesSandfly vectorNineteen strainsInoculation siteGuyanensisInoculum dose