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2 results on '"combinedantiretroviral therapy"'

1. Persistently high IgA serum levels are a marker of immunological or virological failure of combined antiretroviral therapy in children with perinatal HIV-1 infection.

Author

Chiappini, Elena, Galli, Luisa, Tovo, Pier-Angelo, Gabiano, Clara, and de Martino, Maurizio

Subjects
*HIV infections, *IMMUNOGLOBULIN A, *SERUM, *IMMUNOLOGY, *VIROLOGY, *ANTIRETROVIRAL agents
Abstract

Non-expensive and low-complexity surrogate markers for monitoring the response to combined antiretroviral therapy (combined-ART) are needed in poor-resource settings where routine assessment of CD4+ T-lymphocyte count and viral load can not be afforded. We longitudinally evaluated Ig serum levels in 234 HIV-1 infected children receiving combined-ART with ≥ 3 drugs. Since Ig levels physiologically vary with age, differences at different age periods were evaluated as differences in z-scores calculated using the mean and standard deviation of the normal population for each age period. Data from 17 (7·3%) children with immunological failure and from 54 (23·1%) children with virological failure of combined-ART were compared with data from not-failed children. At baseline children with immunological failure showed higher IgMz-scores (P = 0·042) than children without. After 3–12 months of therapy immunologically failed children displayed higher viral loads (P < 0·0001) and IgA (P = 0·043)z-scores than not-failed children. Similarly, at the same follow-up time, children with virological failure showed lower CD4+ T-lymphocyte percentages (P = 0·005) and higher IgAz-scores (P < 0·0001) than not-failed children. No difference in IgG or IgMz-scores was evidenced between failed and not-failed children after 3–12 months of therapy. In conclusion, IgA serum level is a cheap and low-complexity marker of immunological or virological failure of combined-ART which might be adopted in poor-resource settings. [ABSTRACT FROM AUTHOR]

Published
2005
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2. Persistently high IgA serum levels are a marker of immunological or virological failure of combined antiretroviral therapy in children with perinatal HIV-1 infection

Author

Chiappini, E., Galli, L., Tovo, P. A., Gabiano, C., de Martino, M., Osimani, P., Cordiali, R., De Mattia, D., Manzionna, M., Di Bari, C., Ruggeri, M., Masi, M., Miniaci, A., Specchia, F., Ciccia, M., Lanari, M., Baldi, F., Battisti, L., Fiorino, C., Dessı`, C., Pintor, C., Dedoni, M., Fenu, M. L., Cavallini, R., Anastasio, E., Merolla, F., Sticca, M., Pomero, G., Bezzi, Teresa Maria, Fiumana, Elisa, Bonsignori, F., Gervaso, P., Seini, E., Cecchi, M. T., Cosso, D., Timitilli, A., Stronati, M., Plebani, A., Pinzani, R., Bongianin, I., Vigano`, A., Giacomet, V., Erba, P., Salvini, F., Zuccotti, G. V., Giovannini, M., Ferraris, G., Lipreri, R., Moretti, C., Cellini, M., Cano, M. C., Paolucci, P., Bruzzese, E., De Marco, G., Tarallo, L., Tancredi, F., Pennazzato, M., Rampon, O., Dalle Nogare, E. R., Sanfilippo, A., Romano, A., Saitta, M., Dodi, I., Barone, A., Maccabruni, A., Consolini, R., Legitimo, A., Magnani, C., Falconieri, P., Fundaro`, C., Genovese, O., Panzanella, A., Casadei, A. M., Martino, A., Concato, C., Anzidei, G., Bove, G., Cerilli, S., Catania, S., Ajassa, C., Ganau, A., Cristiano, L., Mazza, A., Di Palma, A., Mignone, F., Riva, C., Scorfaro, C., Portelli, V., Rabusin, M., Pellegatta, A., Molesini, M., Chiappini E., Galli L., Tovo PA., Gabiano C., de Martino M., Osimani P, Masi M., Specchia F., Molesini M., and The Italian Register for HIV Infection in Children

Subjects
Adolescent, Anti-HIV Agents, Immunology, HIV Infections, HIV-1 infection, Perinatal hiv, Antiretroviral Therapy, Highly Active, Clinical Studies, Immunology and Allergy, Medicine, Humans, Treatment Failure, Child, viremia, business.industry, combinedantiretroviral therapy, hyper-IgA, Infant, Newborn, Normal population, Infant, Viral Load, Antiretroviral therapy, Virological failure, Infectious Disease Transmission, Vertical, CD4 Lymphocyte Count, Immunoglobulin A, Child, Preschool, HIV-1, Drug Monitoring, business, Viral load, Biomarkers, Follow-Up Studies
Abstract

Summary Non-expensive and low-complexity surrogate markers for monitoring the response to combined antiretroviral therapy (combined-ART) are needed in poor-resource settings where routine assessment of CD4+ T-lymphocyte count and viral load can not be afforded. We longitudinally evaluated Ig serum levels in 234 HIV-1 infected children receiving combined-ART with ≥ 3 drugs. Since Ig levels physiologically vary with age, differences at different age periods were evaluated as differences in z-scores calculated using the mean and standard deviation of the normal population for each age period. Data from 17 (7·3%) children with immunological failure and from 54 (23·1%) children with virological failure of combined-ART were compared with data from not-failed children. At baseline children with immunological failure showed higher IgM z-scores (P = 0·042) than children without. After 3–12 months of therapy immunologically failed children displayed higher viral loads (P < 0·0001) and IgA (P = 0·043) z-scores than not-failed children. Similarly, at the same follow-up time, children with virological failure showed lower CD4+ T-lymphocyte percentages (P = 0·005) and higher IgA z-scores (P < 0·0001) than not-failed children. No difference in IgG or IgM z-scores was evidenced between failed and not-failed children after 3–12 months of therapy. In conclusion, IgA serum level is a cheap and low-complexity marker of immunological or virological failure of combined-ART which might be adopted in poor-resource settings.

Published
2005

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