Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.

It has been suggested that type 1 immune responses protect against tuberculosis (TB), while type 2 responses, such as those induced by helminths, may suppress protective responses and increase susceptibility to TB. Factors associated with progression to active TB were investigated in a cohort of HIV...

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Main Authors: Elliott, A, Kyosiimire, J, Quigley, M, Nakiyingi, J, Watera, C, Brown, M, Joseph, S, French, N, Gilks, C, Whitworth, J
Format: Journal article
Language:English
Published: 2003
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author Elliott, A
Kyosiimire, J
Quigley, M
Nakiyingi, J
Watera, C
Brown, M
Joseph, S
French, N
Gilks, C
Whitworth, J
author_facet Elliott, A
Kyosiimire, J
Quigley, M
Nakiyingi, J
Watera, C
Brown, M
Joseph, S
French, N
Gilks, C
Whitworth, J
author_sort Elliott, A
collection OXFORD
description It has been suggested that type 1 immune responses protect against tuberculosis (TB), while type 2 responses, such as those induced by helminths, may suppress protective responses and increase susceptibility to TB. Factors associated with progression to active TB were investigated in a cohort of HIV-1-infected Ugandan adults, a group at high risk of TB. High rates of subsequent progression to active TB were associated with eosinophil counts > or = 0.4 x 10(9)/L at enrolment. Eosinophilia at enrolment was associated with male gender, low socio-economic status, high CD4+ T cell counts, and schistosomiasis, but adjusting for these factors did not explain the association of eosinophilia with progression to active TB (adjusted rate ratio = 2.76, P = 0.004). Eosinophilia is most likely to be indicative of a type 2 immune response induced by helminth infection in this Ugandan cohort, but the mechanism of the observed association between eosinophilia and risk of TB remains to be determined.
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spelling oxford-uuid:c3552a42-1bb6-4aa9-ae6e-7d7c004487bd2022-03-27T06:15:46ZEosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c3552a42-1bb6-4aa9-ae6e-7d7c004487bdEnglishSymplectic Elements at Oxford2003Elliott, AKyosiimire, JQuigley, MNakiyingi, JWatera, CBrown, MJoseph, SFrench, NGilks, CWhitworth, JIt has been suggested that type 1 immune responses protect against tuberculosis (TB), while type 2 responses, such as those induced by helminths, may suppress protective responses and increase susceptibility to TB. Factors associated with progression to active TB were investigated in a cohort of HIV-1-infected Ugandan adults, a group at high risk of TB. High rates of subsequent progression to active TB were associated with eosinophil counts > or = 0.4 x 10(9)/L at enrolment. Eosinophilia at enrolment was associated with male gender, low socio-economic status, high CD4+ T cell counts, and schistosomiasis, but adjusting for these factors did not explain the association of eosinophilia with progression to active TB (adjusted rate ratio = 2.76, P = 0.004). Eosinophilia is most likely to be indicative of a type 2 immune response induced by helminth infection in this Ugandan cohort, but the mechanism of the observed association between eosinophilia and risk of TB remains to be determined.
spellingShingle Elliott, A
Kyosiimire, J
Quigley, M
Nakiyingi, J
Watera, C
Brown, M
Joseph, S
French, N
Gilks, C
Whitworth, J
Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title_full Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title_fullStr Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title_full_unstemmed Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title_short Eosinophilia and progression to active tuberculosis in HIV-1-infected Ugandans.
title_sort eosinophilia and progression to active tuberculosis in hiv 1 infected ugandans
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