{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T19:34:51Z","timestamp":1791056091164,"version":"4.1.0"},"reference-count":28,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2006,8,8]],"date-time":"2006-08-08T00:00:00Z","timestamp":1154995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2006,8,25]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>Considering the complexity of the immunological events triggered during active visceral Leishmaniasis (VL), the relevance of the segregation of the immune response during human VL into type 1 and type 2 still remains unclear. For this purpose, in individuals living in risk areas for VL, we have evaluated especially asymptomatic individuals and patients with active VL, the plasmatic levels of cytokines and reactive nitrogen species under ex vivo conditions. In addition, we have also performed an analysis of intracellular cytokine patterns of circulating leucocytes after short-term culture, particularly in the absence of antigenic-specific stimulation, in order to reflect dynamic events of immune response in vivo during Leishmania chagasi infection. Although asymptomatic individuals and non-infected subjects presented a similar immunological profile, an outstanding inflammatory\/regulatory profile, based on higher plasmatic levels of cytokines such as interleukin (IL)-8, interferon (IFN)-\u03b3, tumour necrosis factor (TNF)-\u03b1, IL-6 and IL-10, was associated with clinical status observed in active VL. In this context, we hypothesize that IL-10, through its ability to inhibit anti-leishmanial macrophage activation, associated with the lower frequency of TNF-\u03b1+ monocytes and ordinary levels of nitrite and nitrate are the major mechanisms associated with disease onset.<\/jats:p>","DOI":"10.1111\/j.1365-2249.2006.03171.x","type":"journal-article","created":{"date-parts":[[2006,8,8]],"date-time":"2006-08-08T14:45:39Z","timestamp":1155048339000},"page":"124-132","source":"Crossref","is-referenced-by-count":108,"title":["Mixed inflammatory\/regulatory cytokine profile marked by simultaneous raise of interferon-\u03b3 and interleukin-10 and low frequency of tumour necrosis factor-\u03b1+ monocytes are hallmarks of active human visceral Leishmaniasis due to\n                    <i>Leishmania chagasi<\/i>\n                    infection"],"prefix":"10.1093","volume":"146","author":[{"given":"V","family":"Peruhype-Magalh\u00e3es","sequence":"first","affiliation":[{"name":"Laborat\u00f3rio de Doen\u00e7a de Chagas, CPqRR-FIOCRUZ\/BH, Brazil"},{"name":"Instituto Oswaldo Cruz, FIOCRUZ\/RJ, Brazil"},{"name":"Laborat\u00f3rio de Imunologia Celular e Molecular, CPqRR-FIOCRUZ\/BH, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O A","family":"Martins-Filho","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Doen\u00e7a de Chagas, CPqRR-FIOCRUZ\/BH, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Prata","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina do Tri\u00e2ngulo Mineiro, Uberaba\/MG, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L De A","family":"Silva","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina do Tri\u00e2ngulo Mineiro, Uberaba\/MG, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Rabello","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Pesquisas Cl\u00ednicas, CPqRR-FIOCRUZ\/BH, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Teixeira-Carvalho","sequence":"additional","affiliation":[{"name":"Laborat\u00f3rio de Doen\u00e7a de Chagas, CPqRR-FIOCRUZ\/BH, Brazil"},{"name":"Laborat\u00f3rio de Imunologia Celular e Molecular, CPqRR-FIOCRUZ\/BH, Brazil"},{"name":"Escola de Farm\u00e1cia, Universidade Federal de Ouro Preto\/UFOP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R M","family":"Figueiredo","sequence":"additional","affiliation":[{"name":"Centro Geral de Pediatria, FHEMIG\/BH, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S F","family":"Guimar\u00e3es-Carvalho","sequence":"additional","affiliation":[{"name":"Universidade Estadual de Montes Claros, Montes Claros\/MG, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T C A","family":"Ferrari","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina, UFMG, Belo 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