Journal article
History of tuberculosis is associated with lower exhaled nitric oxide levels in HIV-infected children
- Abstract:
-
OBJECTIVE: HIV disrupts host defense mechanisms and maintains chronic inflammation in the lung. Nitric oxide is a marker of lung inflammation and can be measured in the exhaled air. We investigated the relationship between exhaled nitric oxide (eNO), HIV status and airway abnormalities in perinatally HIV-infected children aged 6-19 years. DESIGN:A cross-sectional study.
METHODS: HIV-infected individuals on antiretroviral therapy and HIV-uninfected children with no active tuberculosis (TB) or acute respiratory tract infection were recruited from a public hospital in Harare, Zimbabwe. Clinical history was collected and eNO testing and spirometry was performed. The association between eNO and explanatory variables (HIV, FEV1 z-score, CD4 cell count, viral load, history of TB) was investigated using linear regression analysis adjusted for age, sex and time of eNO testing.
RESULTS: In total, 222 HIV-infected and 97 HIV-uninfected participants were included. Among HIV-infected participants, 57 (25.7%) had a history of past TB; 56 (25.2%) had airway obstruction, but no prior TB. HIV status was associated with lower eNO level [mean ratio 0.79 (95% confidence interval, 95% CI 0.65-0.97), P = 0.03]. Within the HIV-infected group, history of past TB was associated with lower eNO levels after controlling for age, sex and time of eNO testing [0.79 (95% CI 0.67-0.94), P = 0.007].
CONCLUSION: HIV infection and history of TB were associated with lower eNO levels. eNO levels may be a marker of HIV and TB-induced alteration in pulmonary physiology; further studies focused on potential causes for lower eNO levels in HIV and TB are warranted.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 198.7KB, Terms of use)
-
- Publisher copy:
- 10.1097/QAD.0000000000002265
Authors
- Publisher:
- Wolters Kluwer
- Journal:
- AIDS More from this journal
- Volume:
- 33
- Issue:
- 11
- Pages:
- 1711-1718
- Publication date:
- 2019-09-01
- Acceptance date:
- 2019-04-27
- DOI:
- EISSN:
-
1473-5571
- ISSN:
-
0269-9370
- Pmid:
-
31107249
- Language:
-
English
- Keywords:
- Pubs id:
-
pubs:1003359
- UUID:
-
uuid:ff06cde3-dd69-442a-a852-704a0bdc41b4
- Local pid:
-
pubs:1003359
- Source identifiers:
-
1003359
- Deposit date:
-
2019-10-23
Terms of use
- Copyright date:
- 2019
- Notes:
- © 2019 The Author(s). Published by Wolters Kluwer Health, Inc. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.
If you are the owner of this record, you can report an update to it here: Report update to this record