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Comprehensive & Cost Effective Laboratory Monitoring of HIV/AIDS: an African Role Model
Published on: October 31, 2010
Diagnosis and prediction of pediatric HIV-1 infection and AIDS: current status
K E Ugen1, J M Von Feldt, D B Weiner
1Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia.
Insights
Accurate prediction and diagnosis of pediatric AIDS are crucial due to rising HIV-1 infections in women. Early detection methods are vital as maternal antibodies can hinder conventional serological tests in infants.
Area of Science:
- Pediatric infectious diseases
- Immunology
- Molecular diagnostics
Background:
- Rising incidence of Human Immunodeficiency Virus type 1 (HIV-1) infection in women of childbearing age has led to increased pediatric Acquired Immunodeficiency Syndrome (AIDS) cases.
- The World Health Organization (WHO) projected at least 10 million pediatric AIDS cases globally by 2000, highlighting an urgent public health concern.
- Conventional serological diagnosis is challenging in infants under 2 years due to persistent maternal anti-HIV-1 antibodies, which can remain for up to 21 months.
Purpose of the Study:
- To review and summarize recent advancements in methodologies for predicting and diagnosing pediatric HIV-1 infection and AIDS.
- To emphasize the importance of accurate diagnosis for timely therapeutic interventions in children.
- To explore alternative diagnostic approaches beyond conventional serology for early detection in infants.
Main Methods:
- Review of serological, biological, and molecular diagnostic techniques for pediatric HIV-1 infection.
- Inclusion of methods such as polymerase chain reaction (PCR), p24 core protein detection, anti-HIV-1 IgA measurement, and in vitro antibody-producing cell assays.
- Consideration of maternal humoral immune responses to envelope glycoproteins as a predictive factor for infant infection.
Main Results:
- Various diagnostic methods, including PCR and p24 antigen testing, offer alternatives to serology for early detection in infants.
- Maternal immune responses may provide insights for predicting infant HIV-1 status.
- The review consolidates current knowledge on predictive and diagnostic tools for pediatric HIV-1.
Conclusions:
- Accurate and timely diagnosis of pediatric HIV-1 infection is critical for effective management and treatment initiation.
- A combination of diagnostic approaches, including molecular and immunological assays, is necessary to overcome limitations of early serological testing.
- Further research into predictive markers, such as maternal immune responses, could enhance early identification of at-risk infants.
Abstract:
The increase in the incidence of HIV-1 infection in women of child bearing age has resulted in a surge in the number of cases of pediatric AIDS. The World Health Organization (WHO) has estimated that the number of cases of pediatric AIDS worldwide will be at least 10 million by the year 2000. This alarming statistic underscores the need for accurate prediction and diagnosis of pediatric HIV-1 infection which is of paramount importance for the initiation of effective therapeutic interventions. Since circulating maternal anti-HIV-1 antibody persists in the baby for up to 21 months, early conventional serological diagnosis of infection is not possible. Other methods for diagnosis of HIV-1 infection in a child less than 2 years of age have been utilized including the polymerase chain reaction (PCR), measurements of the HIV-1 p24 core protein and anti-HIV-1 IgA, as well in vitro measurements of antibody producing cells. In addition, the ability to predict HIV-1 infection in the child based upon maternal humoral immune responses to the envelope glycoprotein has also been suggested. This review summarizes the recent serological, biological and molecular methodologies used to predict and diagnose pediatric HIV-1 infection and AIDS.
