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Camara EJN, Mendonca VRR, Souza LCL, Carvalho JS, Lessa RA, Gatto R, Barreto LO, Chiacchio G, Amarante E, Cunha M, Alves-Silva LS, Guimarães BAC, Barral-Netto M. Elevated IL-17 levels and echocardiographic signs of preserved myocardial function in benznidazole-treated individuals with chronic Chagas' disease. Int J Infect Dis 2018; 79:123-130. [PMID: 30528394 DOI: 10.1016/j.ijid.2018.11.369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The immunological and clinical impact of trypanocidal treatment in chronic Chagas' disease (CCD) is unclear. METHODOLOGY AND FINDINGS Several cytokines were measured in plasma of 66 patients with CCD. Thirty-three patients had been previously treated with benznidazole and 33 had never been treated. The treated group exhibited higher levels of IL-17 (median 142.45×1.22pg/ml, P=0.025), which was the only one significantly associated with Bz treatment, especially after adjusting for time of disease and NYHA class (P=0.024; OR 1.006, 95% CI 1.001-1.010). Compared to untreated patients, the treated group exhibited higher median values of mitral annular E' lateral (13.0×10.0cm/s, P=0.038), S' infero-lateral (8.9×7.6cm/s, P=0.013), S' septal (8.5×7.4cm/s, P=0.034), mean S' (9.0×7.9cm/s, P=0.013) and tricuspid annular S' (13.3×11.1cm/s, P=0.001) and lower values of E/E' septal (7.2×9.5cm/s, P=0.049). After adjustment for time of disease and NYHA class, S' infero-lateral (P=0.031), mean S' (P=0.049) and S' tricuspid (P=0.024) persisted as significantly associated with treatment. CONCLUSION The present findings suggest that the group of CCD patients treated with Bz displayed increased plasma levels of IL-17 and preserved myocardial function, reinforcing the idea that Bz treatment may be beneficial.
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Affiliation(s)
- Edmundo J N Camara
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil; Unidade Docente Assistencial de Cardiologia (UDAC), Complexo Hospitalar Professor Edgard Santos Universidade Federal da Bahia, Salvador, Brazil
| | - Vitor R R Mendonca
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil; Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Ligia C L Souza
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil; Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Ruda A Lessa
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Ramon Gatto
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Luan O Barreto
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | | | | | - Monaliza Cunha
- Unidade Docente Assistencial de Cardiologia (UDAC), Complexo Hospitalar Professor Edgard Santos Universidade Federal da Bahia, Salvador, Brazil
| | - Luis S Alves-Silva
- Unidade Docente Assistencial de Cardiologia (UDAC), Complexo Hospitalar Professor Edgard Santos Universidade Federal da Bahia, Salvador, Brazil
| | | | - Manoel Barral-Netto
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil; Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil; Instituto Nacional de Ciência e Tecnologia em Investigação em Imunologia (iii-INCT), São Paulo, Brazil.
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