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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/16145

Title: Helminthic infection and the risk of neurologic disease progression in HTLV-1
Other Titles: Journal of Clinical Virology
Authors: Sundberg, Michael A.
Costa, Davi
Orge, Gloria
Castro, Néviton Matos de
Muniz, André Luís Nunes
Glesby, Marshall J.
Carvalho Filho, Edgar Marcelino de
Keywords: HTLV-1;HAM/TSP;Neurologic disease;Helminths;Survival analysis
Issue Date: 2012
Abstract: Background Infection with the human T-cell lymphotropic virus, type 1 (HTLV-1) has been associated with an increased Th1 response. Interestingly, a higher prevalence of helminthic coinfection has been observed among infected individuals, and subsequent modulation of the immune response typically associated with helminths may influence clinical outcomes among HTLV-1 coinfected individuals. Objective This study was conducted to elucidate the association between helminthic coinfection and the development of clinically characterized neurologic disease that occurs in HTLV-1 infection. Study design In a cohort analysis, incidence of HTLV-associated myelopathy/tropical spastic paraparesis (HAM/TSP) was recorded. Incidence of clinical outcomes and disease-free survival of several neurologic outcomes associated with HTLV-1 were estimated using the Kaplan–Meier method with log-rank tests. The relationships between helminthic infection and risk of HTLV-1 neurologic outcomes were assessed by Cox proportional hazard modeling. Results Seventy-four coinfected and 79 non-coinfected patients were followed, with 92 helminthic infections observed in the coinfected group. One patient per group developed HAM/TSP and the risk of progression to neurologic disease outcomes did not differ among those with and without helminthic coinfection (p > 0.45). A significant difference was noted in the prevalence of neurologic disease outcomes among all patients at the conclusion of the study (p < 0.01). Conclusions These data suggest that treated helminthic infection does not affect risk of development of neurologic disease in HTLV-1 infection, and reinforce that treatment of helminths does not adversely affect patients with HTLV-1. Importantly, among all patients, an overall progression of neurologic disease was observed.
Description: Texto completo: acesso restrito. p. 251–255
URI: http://repositorio.ufba.br/ri/handle/ri/16145
ISSN: 1386-6532
Appears in Collections:Artigos Publicados em Periódicos (Medicina)

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