Consistency of Mycobacterium tuberculosis-specific interferon-gamma responses in HIV-1-infected women during pregnancy and postpartum.
Date
2012Author
Jonnalagadda, SR
Brown, E
Lohman-Payne, B
Wamalwa, D
Farquhar, C
Tapia, K
Cranmer, LM
John-Stewart, GC
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Background: We determined the consistency of positive interferon-gamma (IFN-γ) release assays (IGRAs) to detect latent TB infection (LTBI) over one-year postpartum in HIV-1-infected women. Methods: Women with positive IGRAs during pregnancy had four 3-monthly postpartum IGRAs. Postpartum change in magnitude of IFN-γ response was determined using linear mixed models. Results: Among 18 women with positive pregnancy IGRA, 15 (83%) had a subsequent positive IGRA; 9 (50%) were always positive, 3 (17%) were always negative, and 6 (33%) fluctuated between positive and negative IGRAs. Women with pregnancy IGRA IFN-γ>8 spot forming cells (SFCs)/well were more likely to have consistent postpartum IGRA response (odds ratio: 10.0; 95% confidence interval (CI): 0.9-117.0). Change in IFN-γ response over postpartum was 10.2 SFCs/well (95% CI: -1.5-21.8 SFCs/well).Conclusion: Pregnancy positive IGRAs were often maintained postpartum with increased consistency in women with higher baseline responses. There were modest increases in magnitude of IGRA responses postpartum
URI
http://www.ncbi.nlm.nih.gov/pubmed/22496602http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/39104
Citation
Infect Dis Obstet Gynecol. 2012;2012:950650Publisher
University of Nairobi. Department of Paediatrics
Collections
- Faculty of Health Sciences (FHS) [10377]