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Tovar Salazar A, McKhann A, Chen H, Bosch RJ, Weinberg A. Immune Correlates of Herpes Zoster in People Living with HIV on Effective Antiretroviral Therapy. AIDS Res Hum Retroviruses 2019; 35:890-895. [PMID: 31179712 DOI: 10.1089/aid.2019.0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Herpes zoster (HZ) has high morbidity in people living with HIV (PLHIV). We investigated immunological factors that correlated with the development of HZ in PLHIV with controlled HIV replication on antiretroviral therapy (ART). PLHIV who developed HZ on ART (cases), with undetectable plasma HIV RNA, and CD4 counts ≥200 cells/μL were matched 1:1 to controls by CD4 count, age, gender, race, and duration of ART. Varicella-zoster virus (VZV)-specific T cells and circulating regulatory T cells (Treg) were measured by flow cytometry before and after HZ. Differences between cases and controls were assessed by paired t-tests and longitudinal changes by Wilcoxon signed rank test. HZ cases (N = 31) had higher CD4+FOXP3+CD25+% Treg before HZ compared with 31 controls. After VZV ex vivo restimulation, cases had lower T cell responses, including CD8+perforin+% cytotoxic T lymphocytes (CTLs), CD4+IL10+%, and CD4+TGFβ+% compared with controls. Overall, Treg negatively correlated with VZV-specific Th1 responses. Moreover, Treg decreased over time on ART in HZ cases, VZV-CTLs were stable and did not increase even after HZ. Increased circulating Treg and decreased VZV-specific T cell immune responses were associated with the risk of HZ in PLHIV. The kinetics of Treg over time, but not of VZV-CTLs, paralleled the natural history of HZ, whose incidence decreases over time on effective ART.
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Affiliation(s)
- Adriana Tovar Salazar
- Department of Pediatrics, Anschutz Medical Center University of Colorado Denver, Aurora, Colorado
| | - Ashley McKhann
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health, Boston, Massachusetts
| | - Huichao Chen
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health, Boston, Massachusetts
| | - Ronald J. Bosch
- Center for Biostatistics in AIDS Research, Harvard TH Chan School of Public Health, Boston, Massachusetts
| | - Adriana Weinberg
- Department of Pediatrics, Anschutz Medical Center University of Colorado Denver, Aurora, Colorado
- Department of Medicine, Anschutz Medical Center University of Colorado Denver, Aurora, Colorado
- Department of Pathology, Anschutz Medical Center University of Colorado Denver, Aurora, Colorado
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de Souza Campos Fernandes RC, Louvain de Souza T, da Silva Barcellos T, Medina-Acosta E. An Exclusively Skewed Distribution of Pediatric Immune Reconstitution Inflammatory Syndrome Toward the Female Sex Is Associated With Advanced Acquired Immune Deficiency Syndrome. Front Pediatr 2019; 7:293. [PMID: 31355171 PMCID: PMC6635464 DOI: 10.3389/fped.2019.00293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 06/28/2019] [Indexed: 11/29/2022] Open
Abstract
In human immunodeficiency virus and acquired immune deficiency syndrome (HIV/AIDS) patients with very low CD4 cell counts, there is a temporal relationship between administration of antiretroviral therapy (ART) and an increased inflammatory response state known as the immune reconstitution inflammatory syndrome (IRIS). The predominant clinical presentation of IRIS is an infectious disease that can be life-threatening. IRIS-related infectious events are distributed similarly between adult males and females, albeit a few studies have shown a skewing toward the male sex in pediatric IRIS. Here, we assessed sex-specific differences in the causes and extent of IRIS infectious events in HIV-infected pediatric patients on ART. We carried out a prospective clinical analysis (from 2000 to 2018) of IRIS-related infectious events after ART in a cohort of 82 Brazilian children and adolescents infected with HIV-1 through mother-to-child transmission as well as a comprehensive cross-referencing with public records on IRIS-related infectious causes in pediatric HIV/AIDS. Twelve events fulfilling the criteria of IRIS occurred exclusively in 11 females in our cohort. The median age at IRIS events was 3.6 years. The infectious causes included Mycobacterium bovis, varicella-zoster virus, molluscum contagiosum virus, human papillomavirus, cytomegalovirus, and Mycobacterium tuberculosis. In one female, there was regional bacillus Calmette-Guérin dissemination and cytomegalovirus esophagitis. There was complete health recovery after 10 IRIS events without the use of corticosteroids or ART interruption. One case of IRIS-associated miliary tuberculosis was fatal. The biological female sex was a significant risk factor for IRIS events (odds ratio: 23.67; 95% confidence interval 95%: 1.341-417.7; P = 0.0016 and P < 0.01 by the multivariable analysis). We observed an effect of the advanced HIV/AIDS variable in IRIS females as compared with non-IRIS females (mean CD4+ T cell percentage 13.36 vs. 18.63%; P = 0.0489 and P < 0.05 by the multivariable analysis), underpinning the exclusively skewed distribution toward the female sex of this cohort. Moreover, the IRIS females in our cohort had higher mean CD4+ T cell percentages before (13.36%) and after IRIS (26.56%) than those of the IRIS females (before IRIS, 4.978%; after IRIS, 13.81%) in previous studies conducted worldwide. The exclusively skewed distribution of pediatric IRIS toward the female sex in the cohort was not linked to preferential X-chromosome inactivation rates. We concluded that the exclusively skewed distribution of pediatric IRIS toward females is associated with more advanced AIDS.
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Affiliation(s)
- Regina Célia de Souza Campos Fernandes
- Faculty of Medicine of Campos, Campos dos Goytacazes, Brazil.,Municipal Program for the Surveillance of Sexually Transmitted Diseases and Acquired Immunodeficiency Syndrome of Campos dos Goytacazes, Campos dos Goytacazes, Brazil.,Molecular Identification and Diagnosis Unit, Laboratory of Biotechnology, Center for Biosciences and Biotechnology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brazil
| | - Thaís Louvain de Souza
- Faculty of Medicine of Campos, Campos dos Goytacazes, Brazil.,Molecular Identification and Diagnosis Unit, Laboratory of Biotechnology, Center for Biosciences and Biotechnology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brazil
| | | | - Enrique Medina-Acosta
- Molecular Identification and Diagnosis Unit, Laboratory of Biotechnology, Center for Biosciences and Biotechnology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brazil
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Geretti AM, Brook G, Cameron C, Chadwick D, French N, Heyderman R, Ho A, Hunter M, Ladhani S, Lawton M, MacMahon E, McSorley J, Pozniak A, Rodger A. British HIV Association Guidelines on the Use of Vaccines in HIV-Positive Adults 2015. HIV Med 2018; 17 Suppl 3:s2-s81. [PMID: 27568789 DOI: 10.1111/hiv.12424] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anna Maria Geretti
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | | | | | | | | | | | | | | | | | - Mark Lawton
- Royal Liverpool University Hospital, Liverpool, UK
| | - Eithne MacMahon
- Guy's & St Thomas' NHS Foundation Trust, London, UK.,King's College London, London, UK
| | | | - Anton Pozniak
- Chelsea and Westminster Hospital, NHS Foundation Trust, London, UK
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Borkowsky W, Gershon AA. Varicella Zoster Vaccine Experience in HIV-Infected Children and Adolescents. Immunology 2018. [DOI: 10.1016/b978-0-12-809819-6.00010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Predicting mortality in HIV-infected children initiating highly active antiretroviral therapy in a resource-deprived setting. Pediatr Infect Dis J 2014; 33:1148-55. [PMID: 24945879 DOI: 10.1097/inf.0000000000000454] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND While highly active antiretroviral therapy (HAART) programs have been scaled up across sub-Saharan Africa, no prognostic models for the prediction of mortality risk for children initiating HAART are widely available. Current clinical prediction tools for human immunodeficiency virus (HIV)-infected children are derived from pre-HAART data and therefore cannot predict mortality for children initiating HAART. The purpose of this study was to develop a mortality risk scoring system for HIV-infected children beginning HAART in a resource-deprived setting. METHODS Observational data from HIV-infected children initiating HAART from December 2004 through March 2012 in Kinshasa, Democratic Republic of Congo, were analyzed. Cox proportional hazards models were constructed to assess associations between demographic and clinical characteristics at the time of HAART initiation and mortality. Each child received a model-based risk score predicting mortality after HAART initiation. RESULTS By 31 March 2012, 1010 children had started HAART. One hundred three children (10.2%) died at a median of 5.3 months post-HAART initiation, yielding a mortality rate of 3.4 deaths per 100 child-years. The final mortality prediction model included undernutrition, low CD4 count, HIV symptoms, and low total lymphocyte count. These factors were highly predictive of mortality in the study population (C statistic = 0.79) and performed well when applied to the validation population (C statistic = 0.77). CONCLUSIONS Mortality among children starting HAART in resource-deprived settings can be predicted using a simple scoring system incorporating several readily available factors. Identifying predictors of mortality will help clinicians target modifiable risk factors, such as undernutrition, which are not directly addressed by HAART.
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Incidence, spectrum and outcome of immune reconstitution syndrome in HIV-infected children after initiation of antiretroviral therapy. Pediatr Infect Dis J 2014; 33:953-8. [PMID: 24618936 DOI: 10.1097/inf.0000000000000331] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Immune reconstitution syndrome (IRS) is a relatively common complication in HIV-infected adults starting combination antiretroviral therapy (cART). Data on IRS in HIV-infected children remain limited and are largely restricted to resource-limited settings. This study investigated the incidence, spectrum and outcome of IRS in a pediatric cohort in the United Kingdom. METHODS Retrospective analysis of clinical events during the first 12 months after initiation of cART in 135 treatment-naïve, HIV-infected children in the United Kingdom over a 5-year period. Demographic and laboratory data were provided by the Collaborative HIV Paediatric Study. RESULTS The median age at cART initiation was 6.6 years (interquartile range: 2.3-10.2). The median CD4 lymphocyte percentage (CD4%) at baseline was 15% (median CD4 lymphocyte count: 390 cells/μL). Eight patients (5.9%) developed IRS (incidence: 5.7/100 person years). The IRS events comprised: Bacillus Calmette-Guerin-related complications (local ulceration/lymphadenitis; n = 4), pulmonary tuberculosis (n = 1), Mycobacterium avium intracellulare infection (n = 1), combined tuberculosis/Mycobacterium avium intracellulare infection (n = 1) and cutaneous herpes simplex (n = 1). The mortality was significantly higher in children with IRS than in those without (P < 0.0001). The only statistically significant risk factor for IRS identified was increment in CD4 count at 12 months after starting cART (P = 0.03). CONCLUSIONS The incidence of IRS was significantly lower than previously reported from resource-limited settings, likely reflecting less profound immunodeficiency at cART initiation and fewer coexisting opportunistic infections in our cohort. However, IRS events were associated with considerable morbidity and mortality. Therefore, preventive strategies that can reduce the risk of IRS in children need to be identified.
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Liu C, Wang C, Glesby MJ, D’souza G, French A, Minkoff H, Maurer T, Karim R, Young M. Effects of highly active antiretroviral therapy and its adherence on herpes zoster incidence: a longitudinal cohort study. AIDS Res Ther 2013; 10:34. [PMID: 24373482 PMCID: PMC3904465 DOI: 10.1186/1742-6405-10-34] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 12/13/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Herpes zoster (HZ) is common among HIV-infected individuals, but the impacts of highly active antiretroviral therapy (HAART) and HAART adherence on HZ risk have not been well studied. METHODS The effects of HAART and HAART adherence on HZ incidence were evaluated by comparing HIV-infected women on HAART (HAART use group) with the HIV-infected women remaining HAART naïve (HAART naïve group) in the Women's Interagency HIV Study (WIHS). A 1:1 matching with propensity score for predicting HAART initiation was conducted to balance background covariates at index visit, including HIV disease stage. Kaplan-Meier method was used to compare the risk of HZ development between the matched pairs. Cox proportional hazard models were used to assess the effects of HAART and HAART adherence on HZ incidence. RESULTS Through propensity score matching, 389 pairs of participants were identified and they contributed 3,909 person years after matching. The background covariates were similar between the matched pairs at the index visit. The participants had a mean age around 39 years old, and about 61% of them were Black and 22% were Latina. No significant difference in HZ risk was observed between the HAART use group and the HAART naïve group during the first year of follow-up in any analyses. In the univariate analysis, the HAART use group had marginally lower HZ risk (Hazard Ratio (HR): 0.72; 95% Confidence Interval (CI): 0.48-1.1) over the entire follow-up period. However, women with a HAART adherence level of ≥95% had significantly lower HZ risk (HR: 0.54; 95% CI: 0.31, 0.94) compared to the HAART naïve women. The association remained significant after adjusting for quality of life score and acyclovir use, but it attenuated and was no longer statistically significant after adjusting for an intermediate variable, either CD4+ T cell counts or HIV viral load. CONCLUSIONS Among adult women, we observed a significant preventive effect of long-term HAART use on HZ incidence when a HAART adherence level of ≥95% was attained, and this effect was mediated through reduction of HIV viral load and improvement of CD4+ T cell counts.
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Affiliation(s)
- Chenglong Liu
- Department of Medicine, Georgetown University, 2115 Wisconsin Avenue NW, Suite 130, Washington, DC 20007, USA
| | - Cuiwei Wang
- Department of Medicine, Georgetown University, 2115 Wisconsin Avenue NW, Suite 130, Washington, DC 20007, USA
| | - Marshall J Glesby
- Division of Infectious Diseases, Weill Cornell Medical College, New York, NY, USA
| | - Gypsyamber D’souza
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Audrey French
- Division of Infectious Diseases, Cook County Hospital, Chicago, lL, USA
| | - Howard Minkoff
- Department of Obstetrics and Gynecology, Maimonides Medical Center, Brooklyn, NY, USA
| | - Toby Maurer
- Department of Dermatology, University of California at San Francisco, San Francisco, CA, USA
| | - Roksana Karim
- Departments of Pediatrics and Preventive Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mary Young
- Department of Medicine, Georgetown University, 2115 Wisconsin Avenue NW, Suite 130, Washington, DC 20007, USA
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Nesheim SR, Hardnett F, Wheeling JT, Siberry GK, Paul ME, Emmanuel P, Bohannon B, Dominguez K. Incidence of opportunistic illness before and after initiation of highly active antiretroviral therapy in children. Pediatr Infect Dis J 2013; 32:1089-95. [PMID: 24067552 PMCID: PMC3785006 DOI: 10.1097/inf.0b013e31829ee893] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Little is known about immune reconstitution inflammatory syndrome in children in the United States. METHODS LEGACY is a longitudinal cohort study of HIV-infected participants 0-24 years at enrollment during 2005 to 2007 from 22 US clinics. For this analysis, we included participants with complete medical record abstraction from birth or time of HIV diagnosis through 2006. Opportunistic illness (OI) included AIDS-defining conditions and selected HIV-related diagnoses. We calculated the incidence (#/100 patient-years) of OI diagnosed in the months pre- and postinitiation of the first highly active antiretroviral therapy (HAART) regimen which was followed by ≥1 log reduction in HIV viral load. We defined OI as immune reconstitution inflammatory syndrome if an OI incidence increased after HAART initiation. "Responders" were defined as experiencing ≥1 log decline in viral load within 6 months after HAART initiation. RESULTS Among 575 patients with complete chart abstraction, 524 received HAART. Of these 524 patients, 343 were responders, 181 were nonresponders and 86 experienced OI. Responders accounted for 98 of 124 (79%) of OI. Pre-HAART and post-HAART OI incidences were 43.7 and 24.4 (P = 0.003), respectively, among responders and 15.9 and 9.1 (P = 0.2), respectively, among nonresponders. Overall, OI incidences among responders and nonresponders were 33.8 and 12.3, respectively (P = 0.002). Responders were more likely than nonresponders to experience herpes simplex and herpes zoster before HAART initiation (all, P < 0.002). CONCLUSIONS The lack of immune reconstitution inflammatory syndrome in participants initiating HAART may be due to low overall OI rates. The unexpectedly higher OI prevalence comprised mainly of herpes simplex and zoster, before HAART initiation among responders, may have motivated them to better adhere to HAART.
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Affiliation(s)
- Steven R. Nesheim
- Emory University School of Medicine
- Epidemiology Branch, Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB, Centers for Disease Control and Prevention
| | - Felicia Hardnett
- Epidemiology Branch, Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB, Centers for Disease Control and Prevention
| | | | - George K. Siberry
- Pediatric Adolescent Maternal AIDS Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health
| | | | | | - Beverly Bohannon
- Epidemiology Branch, Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB, Centers for Disease Control and Prevention
| | - Kenneth Dominguez
- Epidemiology Branch, Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB, Centers for Disease Control and Prevention
| | - the LEGACY Consortium
- Epidemiology Branch, Division of HIV/AIDS Prevention, National Center for HIV, Viral Hepatitis, STD, and TB, Centers for Disease Control and Prevention
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Pinheiro RDS, Ferreira DDC, Nóbrega F, Santos NSDO, Souza IPRD, Castro GFBDA. Current status of herpesvirus identification in the oral cavity of HIV-infected children. Rev Soc Bras Med Trop 2013; 46:15-9. [PMID: 23563819 DOI: 10.1590/0037-868217172013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Accepted: 12/13/2012] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Some viruses of the Herpesviridae family are frequently the etiologic agents of oral lesions associated with HIV. The aim of this study was to identify the presence of herpes simplex virus types 1 and 2 (HSV-1, HSV-2), Varicella Zoster virus (VZV), Epstein-Barr virus (EBV), human cytomegalovirus (HCMV), human herpesvirus type 6, type 7 and type 8 (HHV-6, HHV-7 and HHV-8) in the oral cavity of HIV-infected children/adolescents and verify the association between viral subtypes and clinical factors. METHODS The cells of oral mucosa were collected from 50 HIV infected children/adolescents, 3-13 years old (mean age 8.66). The majority (66%) of selected were girls, and they were all outpatients at the pediatric AIDS clinic of a public hospital in Rio de Janeiro. Nested-PCR was used to identify the viral types. RESULTS Absence of immunosuppression was observed in 66% of the children. Highly active antiretroviral therapy (HAART) was used by 72.1% of selected and moderate viral load was observed in 56% of the children/adolescents. Viral types were found in 86% of the children and the subtypes were: HSV-1 (4%), HSV-2 (2%), VZV (4%), EBV (0%), HCMV (24%), HHV6 (18%), HHV-7 (68%), HHV8 (0%). CONCLUSIONS The use of HAART has helped to reduce oral lesions, especially with herpes virus infections. The health professionals who work with these patients should be aware of such lesions because of their predictive value and the herpes virus can be found circulating in the oral cavity without causing lesions.
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Paradoxical Mycobacterium tuberculosis meningitis immune reconstitution inflammatory syndrome in an HIV-infected child. Pediatr Infect Dis J 2013; 32:157-62. [PMID: 22935867 DOI: 10.1097/inf.0b013e31827031aa] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Immune reconstitution inflammatory syndrome occurs in a subset of HIV-infected individuals as the immune system recovers secondary to antiretroviral therapy. An exaggerated and uncontrolled inflammatory response to antigens of viable or nonviable organisms is characteristic, with clinical deterioration despite improvement in laboratory indicators. We describe a fatal case of Mycobacterium tuberculosis meningitis immune reconstitution inflammatory syndrome in an HIV-infected child and review the literature.
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Williams I, Leen C, Barton S. 6 Herpes viruses. HIV Med 2011. [DOI: 10.1111/j.1468-1293.2011.00944_7.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shiohara T, Kurata M, Mizukawa Y, Kano Y. Recognition of immune reconstitution syndrome necessary for better management of patients with severe drug eruptions and those under immunosuppressive therapy. Allergol Int 2010; 59:333-43. [PMID: 20962568 DOI: 10.2332/allergolint.10-rai-0260] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Indexed: 12/16/2022] Open
Abstract
The immune reconstitution syndrome (IRS) is an increasingly recognized disease concept and is observed with a broad-spectrum of immunosuppressive therapy-related opportunistic infectious diseases and severe drug eruptions complicated by viral reactivations. Clinical illness consistent with IRS includes tuberculosis, herpes zoster, herpes simples, cytomegalovirus infections and sarcoidosis: thus, the manifestations of this syndrome and diverse and depend on the tissue burden of the preexisting infectious agents during the immunosuppressive state, the nature of the immune system being restored, and underlying diseases of the hosts. Although IRS has originally been reported to occur in the setting of HIV infection, it has become clear that the development of IRS can also be in HIV-negative hosts receiving immunosuppressive agents, such as prednisolone and tumor necrosis factor α inhibitors, upon their reduction and withdrawal. Drug-induced hypersensitivity syndrome, a life-threatening multiorgan system reaction, is another manifestation of the newly observed IRS. Clinical recognition of the IRS is especially important in improving the outcome for diseases with an otherwise life-threatening progenosis. Clinicians should be aware of the implications of IRS and recognize that relieving the symptoms and signs of immune recovery by anti-inflammatory therapies needs to be balanced with anti-microbial therapies aiming at reducing the amplitude and duration of tissue burden of preexisting microbes.
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Affiliation(s)
- Tetsuo Shiohara
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan. −u.ac.jp
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Superficial thrombophlebitis: A new clinical manifestation of the immune reconstitution inflammatory syndrome in a patient with HIV infection. Am J Dermatopathol 2010; 32:846-9. [PMID: 20881830 DOI: 10.1097/dad.0b013e3181d88d2e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Skin manifestations of immune reconstitution inflammatory syndrome in response to highly active antiretroviral therapy may account for up to 50% of the clinical presentations in this syndrome. Viable or dying infective antigens, host antigens, tumoral antigens, and others may target immune reconstitution inflammatory syndrome, resulting in a wide spectrum of clinical manifestations. We describe a 26-year-old HIV-infected man who had started highly active antiretroviral therapy a few months earlier. He developed multiple linear nodules following the superficial veins in both legs. Histopathologic examination demonstrated a mostly septal panniculitis with features of superficial thrombophlebitis. We propose that superficial thrombophlebitis should be added to the list of clinical manifestations of this newly observed immune restoration disease.
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Son M, Shapiro ED, LaRussa P, Neu N, Michalik DE, Meglin M, Jurgrau A, Bitar W, Vasquez M, Flynn P, Gershon AA. Effectiveness of varicella vaccine in children infected with HIV. J Infect Dis 2010; 201:1806-10. [PMID: 20441519 DOI: 10.1086/652798] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Although varicella vaccine is given to clinically stable human immunodeficiency virus (HIV)-infected children, its effectiveness is unknown. We assessed its effectiveness by reviewing the medical records of closely monitored HIV-infected children, including those receiving highly active antiretroviral therapy (HAART) between 1989 and 2007. Varicella immunization and development of varicella or herpes zoster were noted. Effectiveness was calculated by subtracting from 1 the rate ratios for the incidence rates of varicella or herpes zoster in vaccinated versus unvaccinated children. The effectiveness of the vaccine was 82% (95% confidence interval [CI], 24%-99%; P = .01) against varicella and was 100% (95% CI, 67%-100%; P < .001) against herpes zoster. When the analysis was controlled for receipt of HAART, vaccination remained highly protective against herpes zoster.
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Affiliation(s)
- Moeun Son
- Columbia University College of Physicians and Surgeons, New York, New York 10032, USA
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15
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Immune restoration diseases reflect diverse immunopathological mechanisms. Clin Microbiol Rev 2010; 22:651-63. [PMID: 19822893 DOI: 10.1128/cmr.00015-09] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Up to one in four patients infected with human immunodeficiency virus type 1 and given antiretroviral therapy (ART) experiences inflammatory or cellular proliferative disease associated with a preexisting opportunistic infection, which may be subclinical. These immune restoration diseases (IRD) appear to result from the restoration of immunocompetence. IRD associated with intracellular pathogens are characterized by cellular immune responses and/or granulomatous inflammation. Mycobacterial and cryptococcal IRD are attributed to a pathological overproduction of Th1 cytokines. Clinicopathological characteristics of IRD associated with viral infections suggest different pathogenic mechanisms. For example, IRD associated with varicella-zoster virus or JC polyomavirus infection correlate with a CD8 T-cell response in the central nervous system. Exacerbations or de novo presentations of hepatitis associated with hepatitis C virus (HCV) infection following ART may also reflect restoration of pathogen-specific immune responses as titers of HCV-reactive antibodies rise in parallel with liver enzymes and plasma markers of T-cell activation. Correlations between immunological parameters assessed in longitudinal sample sets and clinical presentations are required to illuminate the diverse immunological scenarios described collectively as IRD. Here we present salient clinical features and review progress toward understanding their pathogeneses.
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Abstract
PURPOSE OF REVIEW Little is known regarding HIV immune reconstitution inflammatory syndrome in children. As the antiretroviral therapy roll out has gathered pace since 2004 in resource-limited settings, pediatric immune reconstitution inflammatory syndrome has emerged as a clinical challenge. RECENT FINDINGS The incidence of immune reconstitution inflammatory syndrome appears to be between 10 and 20%. The commonest causes are mostly mycobacterial, including tuberculosis, atypical mycobacteria and bacillus Calmette-Guérin related. In many pediatric cohorts, however, a marked early mortality within the first 90 days of antiretroviral therapy occurs. This mortality is poorly understood, and the contribution of immune reconstitution inflammatory syndrome to this mortality is unknown. SUMMARY Children after starting antiretroviral therapy may have paradoxical worsening of previously treated opportunistic infections. Due to the differences, however, in children's immunology with vertical HIV transmission, children are probably at greater risk of unmasking occult, subclinical infections during immune reconstitution.
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Immune reconstitution disease: recent developments and implications for antiretroviral treatment in resource-limited settings. Curr Opin HIV AIDS 2009; 2:339-45. [PMID: 19372909 DOI: 10.1097/coh.0b013e3281a3c0a6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE OF REVIEW We review literature published over the past 2 years regarding the immunopathogenesis, epidemiology, clinical spectrum and outcomes of immune reconstitution disease in patients receiving antiretroviral treatment. Particular attention is drawn to data relevant to resource-limited settings. RECENT FINDINGS In high-income countries, immune reconstitution disease occurs in association with a largely predictable spectrum of pathogens, including the herpesviruses, Mycobacterium tuberculosis and Mycobacterium avium complex, Cryptococcus neoformans and hepatitis viruses. Dermatological manifestations are most frequent. In resource-limited settings, patients accessing antiretroviral treatment programmes typically have advanced immunodeficiency, which increases risk of immune reconstitution disease. M. tuberculosis and C. neoformans have emerged as the key causes of morbidity and mortality associated with immune reconstitution disease. An increasing number of 'tropical' infections, including leprosy, schistosomiasis, strongyloidiasis, leishmaniasis, histoplasmosis and many nontuberculous mycobacteria, are also now recognised to provoke immune reconstitution disease but the overall spectrum and relative importance of these organisms remain to be defined. Better characterisation of immune reconstitution disease in these settings is needed to enable development of guidelines regarding prevention, diagnosis and management. SUMMARY While immune reconstitution disease in high-income countries has been clinically and epidemiologically well described, much remains to be learned in resource-limited settings in which immune reconstitution disease is emerging as a significant cause of morbidity and mortality.
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Compston LI, Li C, Sarkodie F, Owusu-Ofori S, Opare-Sem O, Allain JP. Prevalence of persistent and latent viruses in untreated patients infected with HIV-1 from Ghana, West Africa. J Med Virol 2009; 81:1860-8. [PMID: 19774687 DOI: 10.1002/jmv.21614] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Only limited epidemiological data, pertaining to the prevalence of common persistent viruses has been reported in Ghana. This study was conducted to determine the prevalence of persistent viruses in individuals with untreated HIV-1 infection and uninfected blood donors. Paired plasma and cellular samples from HIV-negative blood donors, asymptomatic HIV and symptomatic/AIDS cohorts were screened by multiplex PCR then qPCR for parvovirus B19 (B19V), hepatitis B virus (HBV), GB virus-C (GBV-C), cytomegalovirus (CMV), Epstein-Barr virus (EBV), human herpesvirus-8 (HHV-8) and varicella-zoster virus (VZV). IgG antibodies specific to each target virus were tested to determine exposure rates. No evidence of viraemia was found for B19V and VZV in any group. Prevalence of GBV-C plasma viraemia was significantly higher in asymptomatic and symptomatic HIV infection (16.7%) and (16.2%) than in blood donors (4%) P < 0.005. Occult HBV infection was significantly more frequent in symptomatic HIV infection (10.9%) compared to asymptomatic HIV (3.6%) and blood donors (1.6%) P < 0.005. Although there was a high background of EBV viraemia in cellular fractions of blood donors (8.3%), it was significantly higher in asymptomatic (44.6%) and symptomatic HIV (14.6%) P < 0.0001. For CMV, the significantly increased prevalence of viraemia was only observed in the plasma fraction of the symptomatic HIV-1/AIDS patients (7.6%) compared to asymptomatic individuals (1.8%) and blood donors (0.8%) P < or = 0.001. The background seroprevalence in blood donors was high for B19V (> or =64%), HBV (> or =70%), CMV and EBV (> or =90%) and was significantly increased in HIV infections for HBV, CMV, VZV (symptomatic HIV), and HHV-8 (asymptomatic and symptomatic HIV).
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Affiliation(s)
- Lara Isobel Compston
- Department of Haematology, Division of Transfusion Medicine, University of Cambridge, Cambridge Blood Centre, Cambridge CB2 2PT, United Kingdom
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Abstract
BACKGROUND Immune reconstitution inflammatory syndrome (IRIS) after initiating highly active antiretroviral therapy (HAART) has not been widely studied in children, especially in resource-poor settings. METHODS Retrospective cohort study of HIV-infected children initiating HAART between 2001 and 2006 at a tertiary pediatric hospital in Lima, Peru. Charts were reviewed for 1 year after HAART initiation. IRIS was defined as a HAART-associated adverse event caused by an infectious or inflammatory condition in patients with documented virologic or immunologic success. RESULTS Ninety-one children (52% female) received HAART for at least 1 year. Median age at initiation was 5.7 years; 91% were ART naive and 73% had CDC stage C disease. The incidence of IRIS was 19.8 events per 100 person years (95% CI: 11.5-28.0). Median time to IRIS was 6.6 weeks after HAART initiation (range: 2-32 weeks). There were 18 IRIS events, 11 unmasking and 7 paradoxical. These included associations with Mycobacterium tuberculosis in 4 cases, Bacillus Calmette Guerin lymphadenitis in 1 case, varicella zoster virus in 6 cases and herpes simplex labialis in 6 cases. Children who developed IRIS had a higher baseline HIV viral load (P = 0.02) and an indicator of malnutrition (P = 0.007) before HAART initiation. CONCLUSION IRIS occurred in 20% of HIV-infected children starting HAART in Peru and was associated with more advanced disease and malnutrition. Future research is needed to examine specific risk factors associated with pediatric IRIS to allow prompt identification and treatment of IRIS.
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dos Santos Pinheiro R, França TT, Ribeiro CMB, Leão JC, de Souza IPR, Castro GF. Oral manifestations in human immunodeficiency virus infected children in highly active antiretroviral therapy era. J Oral Pathol Med 2009; 38:613-22. [DOI: 10.1111/j.1600-0714.2009.00789.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Geretti AM, Brook G, Cameron C, Chadwick D, Heyderman RS, MacMahon E, Pozniak A, Ramsay M, Schuhwerk M. British HIV Association guidelines for immunization of HIV-infected adults 2008. HIV Med 2009; 9:795-848. [PMID: 18983477 DOI: 10.1111/j.1468-1293.2008.00637.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- A M Geretti
- Department of Virology, Royal Free Hospital, Royal Free and University College Medical School, Pond Street, London NW3 2QG, UK.
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Takahashi R, Kano Y, Yamazaki Y, Kimishima M, Mizukawa Y, Shiohara T. Defective regulatory T cells in patients with severe drug eruptions: timing of the dysfunction is associated with the pathological phenotype and outcome. THE JOURNAL OF IMMUNOLOGY 2009; 182:8071-9. [PMID: 19494333 DOI: 10.4049/jimmunol.0804002] [Citation(s) in RCA: 190] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Toxic epidermal necrolysis (TEN) and drug-induced hypersensitivity syndrome (DIHS) represent two ends of a spectrum of severe drug eruptions: DIHS is unique in that severe epidermal damage seen in TEN is absent, sequential reactivations of herpesviruses occur, and autoimmunity often ensues. To investigate whether changes in regulatory T (Treg) cell function would contribute to variability in the clinical manifestations, we examined the frequency, phenotype, and function of Treg cells both during the acute stage and again long after clinical resolution of both diseases. Dramatic expansions of functional Treg cells were found in the acute stage of DIHS. In contrast, Treg function was profoundly impaired in TEN, although present in normal frequency. Skin homing addressins were more preferentially expressed on Treg cells in DIHS than in TEN. Indeed, Treg cells were more abundantly present in the skin lesions of DIHS. Surprisingly, Treg cells contracted upon resolution of DIHS became functionally deficient, whereas their functional defects in TEN were restored upon recovery. These findings indicate that a transitory impairment in their function during the acute stage of TEN may be related to severe epidermal damage, while a gradual loss of their function after resolution of DIHS may increase the risk of subsequently developing autoimmune disease.
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Affiliation(s)
- Ryo Takahashi
- Division of Flow Cytometry, Kyorin University Graduate School of Medicine, Mitaka, Tokyo, Japan.
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Levin MJ, Anderson JP, Seage GR, Williams PL. Short-term and long-term effects of highly active antiretroviral therapy on the incidence of herpes zoster in HIV-infected children. J Acquir Immune Defic Syndr 2009; 50:182-91. [PMID: 19131890 PMCID: PMC2748317 DOI: 10.1097/qai.0b013e31819550a4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Highly active antiretroviral therapy (HAART) has reduced herpes zoster (HZ) incidence in HIV-infected children, yet it remains common. METHODS We evaluated perinatally HIV-infected youth with varicella infection enrolled between 1993 and 2006 in a prospective cohort study. Incidence rates (IRs) and 95% confidence intervals of HZ were estimated by calendar year, age group, and HAART use. The effect of initiating HAART was also evaluated by fitting Cox survival models adjusted for potential confounders. RESULTS Among 536 perinatally infected children with documented prior varicella (median follow-up = 6.8 years), 116 (22%) developed HZ (IR = 3.2 events/100 person-years, confidence interval: 2.6 to 3.8). IRs increased from 1993 to 1996 and then declined significantly through 2006 (P < 0.001). However, an IR of 1.4-3.1 HZ episodes per 100 person-years persisted from 2001 to 2006. The risk of HZ was higher for those with lower CD4% or in Centers for Disease Control and Prevention clinical class C. The IR of HZ was similar in the 90 days before or after initiation of HAART but declined significantly after more than 90 days of HAART. CONCLUSIONS Although HAART has markedly reduced the IR of HZ, it remains a frequent complication in HIV-infected children. The risk of HZ is similar in the 90 days before and after initiating HAART.
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Affiliation(s)
- Myron J Levin
- Pediatric Infectious Diseases Section, University of Colorado at Denver Health Sciences Center, Mailstop C227, Building 401, (Room R09-108), 1784 Racine Street, Aurora, CO 80045-0508, USA.
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Carvalho VO, Cruz CR, Marinoni LP, Lima HC. Infectious and inflammatory skin diseases in children with HIV infection and their relation with the immune status--evaluation of 127 patients. Pediatr Dermatol 2008; 25:571-3. [PMID: 18950406 DOI: 10.1111/j.1525-1470.2008.00733.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human immunodeficiency virus infection causes changes in the immune system and disease evolution can be partially measured by levels of T CD4(+) lymphocytes. Knowledge of the chronology of skin disease in relationship to the immune status of the patient may help understand the pathogenesis of AIDS. One hundred twenty-seven children were prospectively evaluated for skin diseases and their relationship to immune status. Immunodeficiency in human immunodeficiency virus-infected children was correlated with infectious dermatoses whereas normal CD4(+) T lymphocyte levels was correlated with diseases mediated by hypersensitivity mechanisms.
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Affiliation(s)
- Vânia Oliveira Carvalho
- Division of Pediatric Dermatology, Clinical Hospital Paraná's Federal University, Curitiba, Paraná, Brazil.
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Wood SM, Shah SS, Steenhoff AP, Rutstein RM. Primary varicella and herpes zoster among HIV-infected children from 1989 to 2006. Pediatrics 2008; 121:e150-6. [PMID: 18086820 DOI: 10.1542/peds.2007-0564] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The primary objective of this study was to determine the incidence of herpes zoster in perinatally HIV-infected children. Secondary objectives included assessing the impact of highly active antiretroviral therapy and varicella zoster virus immunization on primary varicella and herpes zoster incidence and identifying risk factors for herpes zoster. We hypothesized that the incidence of herpes zoster has decreased in this population as a result of highly active antiretroviral therapy and routine varicella zoster virus immunization. PATIENTS AND METHODS This retrospective cohort study included HIV-infected children at a pediatric HIV clinic from 1989 to 2006. Incidence rates for 3 intervals (1989-1996, 1997-1999, and 2000-2006) were compared on the basis of introduction of highly active antiretroviral therapy (1996) and varicella zoster virus vaccination (1999). A Cox proportional-hazards regression model was developed for the time to herpes zoster among the subset of patients with primary varicella infection. RESULTS In 356 patients followed for 1721 person-years, the incidence of herpes zoster according to period was 30.0 per 1000 person-years in 1989-1996, 31.9 per 1000 person-years in 1997-1999, and 6.5 per 1000 person-years in 2000-2006. There was no difference in incidence-rate ratio between 1989-1996 and 1997-1999. However, there was a significant difference in herpes zoster incidence when comparing 1989-1999 with 2000-2006. The incidence of primary varicella zoster virus infection and herpes zoster in the 57 patients who received the varicella zoster virus vaccine was 22.3 per 1000 and 4.5 per 1000 person-years, respectively. Highly active antiretroviral therapy at the time of primary varicella zoster virus infection was protective against herpes zoster and increased herpes zoster-free survival. CONCLUSIONS The incidence of herpes zoster has decreased since 1989. The decline occurred after 2000, likely representing the combined effect of immunization and highly active antiretroviral therapy. The use of highly active antiretroviral therapy at the time of primary varicella zoster virus infection decreased the risk of herpes zoster and increased herpes zoster-free survival. Varicella zoster virus immunization was effective in preventing both primary varicella zoster virus and herpes zoster in this cohort.
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Affiliation(s)
- Sarah M Wood
- Special Immunology Service, Children's Hospital of Philadelphia, 34th Street and Civic Center Boulevard, Philadelphia, PA 19104, USA
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Fernández-Casado A, Martin-Ezquerra G, Yébenes M, Plana F, Elvira-Betanzos JJ, Herrero-González JE, Mariñoso ML, Pujol RM. Progressive supravenous granulomatous nodular eruption in a human immunodeficiency virus-positive intravenous drug user treated with highly active antiretroviral therapy. Br J Dermatol 2007; 158:145-9. [PMID: 17941945 DOI: 10.1111/j.1365-2133.2007.08238.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe a 41-year-old human immunodeficiency virus-infected woman with a previous history of intravenous drug abuse, who developed multiple linear nodules following the superficial veins on both arms. Histopathological examination disclosed a dermal histiocytic inflammatory reaction with sarcoid-like granuloma formation occasionally showing an intracytoplasmic refractile material in the histiocytic cells. Nodular lesions developed progressively after starting on highly active antiretroviral therapy (HAART) which increased her CD4 cell count and suppressed her viral load. The appearance of latent inflammatory or autoimmune disease following HAART is a well-recognized phenomenon. We consider that this peculiar 'progressive supravenous granulomatous nodular eruption' should be included within the spectrum of the so-called immune reconstitution inflammatory syndrome.
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Affiliation(s)
- A Fernández-Casado
- Department of Dermatology, Hospital del Mar-IMAS, Passeig Marítim 25-29, 08003 Barcelona, Spain
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Abstract
Herpes Zoster is produced by reactivation of latent Varicella Zoster Virus from the dorsal root ganglion of sensory nerves. It is common in older individuals and rarely described in the pediatric age group. We report a case of recurrent herpes zoster in a 3-year-old HIV positive child involving T4 dermatome on the first occasion and subsequently involving T10 dermatome. The child responded well to oral acyclovir.
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Murdoch DM, Venter WDF, Van Rie A, Feldman C. Immune reconstitution inflammatory syndrome (IRIS): review of common infectious manifestations and treatment options. AIDS Res Ther 2007; 4:9. [PMID: 17488505 PMCID: PMC1871602 DOI: 10.1186/1742-6405-4-9] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2007] [Accepted: 05/08/2007] [Indexed: 11/24/2022] Open
Abstract
The immune reconstitution inflammatory syndrome (IRIS) in HIV-infected patients initiating antiretroviral therapy (ART) results from restored immunity to specific infectious or non-infectious antigens. A paradoxical clinical worsening of a known condition or the appearance of a new condition after initiating therapy characterizes the syndrome. Potential mechanisms for the syndrome include a partial recovery of the immune system or exuberant host immunological responses to antigenic stimuli. The overall incidence of IRIS is unknown, but is dependent on the population studied and its underlying opportunistic infectious burden. The infectious pathogens most frequently implicated in the syndrome are mycobacteria, varicella zoster, herpesviruses, and cytomegalovirus (CMV). No single treatment option exists and depends on the underlying infectious agent and its clinical presentation. Prospective cohort studies addressing the optimal screening and treatment of opportunistic infections in patients eligible for ART are currently being conducted. These studies will provide evidence for the development of treatment guidelines in order to reduce the burden of IRIS. We review the available literature on the pathogenesis and epidemiology of IRIS, and present treatment options for the more common infectious manifestations of this diverse syndrome and for manifestations associated with a high morbidity.
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Affiliation(s)
- David M Murdoch
- Division of Pulmonary and Critical Care Medicine, Duke University Medical Center, Durham North Carolina, USA
- Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- CB#7435, 2104-H McGavran-Greenberg Hall, University of North Carolina, School of Public Health, Chapel Hill, NC 27599-7435, USA
| | - Willem DF Venter
- Reproductive Health & HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Annelies Van Rie
- Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Charles Feldman
- Division of Pulmonology, Department of Medicine, Johannesburg Hospital and University of the Witwatersrand, Johannesburg, South Africa
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Abstract
In 2005 there were 2.1 million children under the age of 15 years living with HIV in sub-Saharan Africa. As in the adult pandemic, attendant skin disease is prevalent in children. This article provides an update of pediatric HIV/AIDS and its cutaneous manifestations from four main aspects: epidemiology, skin disease as an indicator of immune status, immune reconstitution inflammatory syndrome, and the impact of antiretroviral agents on skin disease.
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Affiliation(s)
- Gavin M Gottschalk
- Division of Dermatology, Red Cross Children's Hospital and the University of Cape Town, Klipfontein Road, Rondebosch, Cape Town, 7700, South Africa.
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Lehloenya R, Meintjes G. Dermatologic Manifestations of the Immune Reconstitution Inflammatory Syndrome. Dermatol Clin 2006; 24:549-70, vii. [PMID: 17010783 DOI: 10.1016/j.det.2006.06.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The immune reconstitution inflammatory syndrome (IRIS) represents a diverse range of immunopathologic reactions resulting in clinical deterioration that may occur as immune function is partially restored in HIV-infected patients receiving highly active antiretroviral therapy. Approximately half of IRIS events are dermatologic, and dermatologic IRIS is described in relation to a wide range of conditions, the commonest being herpes zoster and herpes simplex. Most cases of IRIS result in mild and moderate symptoms, but non-dermatologic manifestations related to IRIS have resulted in death. This article covers certain general issues related to IRIS and then focuses on the spectrum of dermatologic manifestations.
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Affiliation(s)
- Rannakoe Lehloenya
- Division of Dermatology, Department of Medicine, University of Cape Town, Groote Schuur Hospital, Observatory, 7925, South Africa
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Abstract
With diminished and dysregulated cell-mediated immunity, HIV-infected individuals are susceptible to a myriad of skin infections. These infections include the conditions encountered in immunocompetent patients, as well as infections seen almost exclusively in the setting of HIV infection. The HIV/AIDS pandemic has made some previously rare infections more prominent. Although antiretroviral therapy has been helpful in relieving the burden of cutaneous infections in HIV-infected patients, it does not prevent all opportunistic infections in the skin and also has created new dilemmas.
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Affiliation(s)
- Molly T Hogan
- Division of Emergency Services, Harborview Medical Center, University of Washington School of Medicine, Box 359702, 325 9th Avenue, Seattle, WA 98104, USA.
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Abstract
Advances in laboratory methods have driven improvements in the management and treatment of HIV infection. The methods to accurately and rapidly diagnose HIV infection in infants and children have been outlined in the previous article. In this review, the laboratory evaluation of infected children is described and methods to monitor progression of disease and response to therapy outlined.
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Affiliation(s)
- Carina A Rodriguez
- Division of Infectious Diseases, Department of Pediatrics, University of South Florida College of Medicine, Tampa, Florida, USA
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Puthanakit T, Oberdorfer P, Akarathum N, Wannarit P, Sirisanthana T, Sirisanthana V. Immune reconstitution syndrome after highly active antiretroviral therapy in human immunodeficiency virus-infected thai children. Pediatr Infect Dis J 2006; 25:53-8. [PMID: 16395104 PMCID: PMC1924530 DOI: 10.1097/01.inf.0000195618.55453.9a] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND There is little information about the immune reconstitution syndrome (IRS) in children, especially from resource-poor countries. OBJECTIVE To determine the incidence and spectrum of IRS in advanced stage human immunodeficiency virus (HIV)-infected children after initiation of highly active antiretroviral therapy (HAART). METHODS Between May 2002 and April 2004, 153 symptomatic HIV-infected children who had CD4 lymphocyte percentage < or =15% initiated HAART in a national antiretroviral drug access program. All patients were followed for 48 weeks. In this study, IRS was defined as a disease event caused by microorganisms or conditions previously reported to be associated with IRS in patients having immunologic and/or virologic response to HAART. RESULTS The incidence of IRS was 19% (95% confidence interval, 13.1-26.1). The median time of onset was 4 weeks after start of HAART (range, 2-31). There were 32 episodes of IRS, including 14 caused by mycobacterial organisms, 7 by varicella-zoster virus, 7 by herpes simplex virus, 3 by Cryptococcus neoformans and 1 episode of Guillain-Barré syndrome. Patients who had IRS develop had lower baseline CD4 lymphocyte percentages compared with those who did not (P = 0.02). CONCLUSIONS IRS is common among HIV-infected children who received HAART in their advanced stage of disease. Educational programs for patients and health care workers on recognizing and treating these conditions should be integrated into antiretroviral treatment access programs.
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Abstract
HIV infection affects residents of all countries of the world, but the greater majority of affected individuals reside in the developing world. In the past decade there have been substantial changes in the management of HIV disease, particularly the introduction of highly active antiretroviral therapy (HAART). Such agents have reduced significantly the morbidity and mortality associated with HIV disease, however, they are not available for most HIV-infected individuals in the developing world. There is now considerable understanding of the molecular epidemiology, transmission and therapy of the common opportunistic oral infections of HIV disease, and as a consequence of improved anti-HIV strategies, the frequency and severity of oral disease associated with HIV infection have reduced considerably, although HAART may predispose to human papilloma virus infection of the mouth and potentially increase the risk of later oral squamous cell carcinoma. Despite advances in clinical care the majority of individuals with HIV disease worldwide will continue to develop oral disease, as they are resident in the developing world and do not have ready access to even simple therapies.
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Affiliation(s)
- Cristina Frezzini
- Oral Medicine Division of Maxillofacial Diagnostic, Medical and Surgical Sciences, Eastman Dental Institute for Oral Health Care Sciences, UCL, University of London, London, UK
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van Toorn R, Kritzinger F, Rabie H. Acute demyelinating encephalomyelitis (ADEM), cryptococcal reactivation and disseminated Herpes simplex in an HIV infected child following HAART. Eur J Paediatr Neurol 2005; 9:355-9. [PMID: 15979358 DOI: 10.1016/j.ejpn.2005.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2005] [Accepted: 02/22/2005] [Indexed: 10/25/2022]
Abstract
Highly active antiretroviral treatment (HAART) is increasingly becoming available for HIV infected children in South Africa. We describe a 7-year-old HIV infected child (CD4=10, viral load =180,669copies/ml) who develops a cryptococcal meningitis, with raised intracranial pressure, complicated by ADEM and disseminated Herpes simplex infection following commencement of HAART.
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Affiliation(s)
- Ronald van Toorn
- Department of Pediatrics and Child Health, Faculty of Health Sciences, Stellenbosch University and Tygerberg Children's Hospital, P.O. Box 19063, Tygerberg 7505, South Africa.
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Gardner EM, Connick E. Illness of immune reconstitution: Recognition and management. Curr Infect Dis Rep 2004; 6:483-493. [PMID: 15538986 DOI: 10.1007/s11908-004-0068-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Some individuals who initiate highly active antiretroviral therapy (HAART) develop new or worsening opportunistic infections or malignancies despite improvements in surrogate markers of HIV-1 infection. These events of paradoxical clinical worsening, also known as immune reconstitution syndromes (IRS), are increased in individuals with prior opportunistic infections or low CD4+ T-cell nadirs. They are thought to result from reconstitution of the immune system's ability to recognize pathogens or tumor antigens that were previously present, but clinically asymptomatic. There is no consensus regarding the diagnostic criteria or pathogenesis of IRS. Knowledge of their presentation and treatment is largely based on case reports. With the introduction of HAART into resource-limited settings, it is likely that significantly more and distinct forms of IRS will be observed. Prospective studies of the incidence and treatment of IRS in multiple settings are critical to better understand their pathogenesis and optimal management.
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Affiliation(s)
- Edward M Gardner
- Division of Infectious Diseases, University of Colorado Health Sciences Center, 4200 East 9th Avenue, Box B168, Denver, CO 80262, USA.
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Shearer WT, Cunningham-Rundles C, Ochs HD. Primary immunodeficiency: Looking backwards, looking forwards. J Allergy Clin Immunol 2004; 113:607-9. [PMID: 15100662 DOI: 10.1016/j.jaci.2004.02.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- William T Shearer
- Departments of Pediatrics and Immunology, Baylor College of Medicine, and Texas Children's Hospital, 6621 Fannin Street, MC:FC330.01, Houston, TX 77030, USA
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