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KIGALI, Rwanda, 26 January 2021, -/African Media Agency (AMA)/- The eLife journal has published an article titled “A Mechanistic Model for long-term Immunological outcomes in South African HIV-infected Children and Adults receiving ART”, following a recent study. Led by Eva Liliane Ujeneza, AIMS alumna and PhD researcher affiliated to AIMS and the South African Center of Excellence for Epidemiological Modelling and Analysis (SACEMA) in Cape Town,the article combines clinical data and mathematical analysis to understand how T cell numbers are affected by infection and treatment at different ages.
“The HIV global pandemic is still very much pervasive across the globe,” said Eva Liliane Ujeneza. “Even though antiretroviral treatment (ART) counter’s the virus’ highly destructive effects on the immune system’s CD4 T cells, the response to treatment varies across patients, for reasons that are not fully understood. Our study uses a combined mathematical and empirical approach, to demonstrate how age, gender, and other parameters affect the recovery of CD4 T cells following treatment initiation, and how these effects vary over time,” she said.
“Several previous studies have quantified the effects of ART on the CD4 T cells,” said Prof Wilfred Ndifon, co-author and Chief Scientific Officer for AIMS. “These studies generally used so-called “semi-mechanistic” mathematical models, the analysis of which incorporated reference CD4 T cell counts from healthy individuals in an ad hoc way.” Eva’s study is the first to use a mathematical model that provides mechanistic insight into the changes that CD4 T cells undergo during ART while enabling systematic comparison with changes occurring in healthy individuals. We are excited about the imminent impact of the findings. One possible application is for projecting normal ranges of CD4 T cell recovery rates in paediatric HIV patients on ART, such that instances of abnormal recovery can be easily detected,” he said.
The raging COVID-19 pandemic has shifted focus from HIV/AIDS. According to UN AIDS, since the start of the HIV/AIDS pandemic, around 75 million people have become infected with HIV, and over 30 million people have died from AIDS-related diseases. HIV/AIDS is less devastating today, thanks to the development of ART, which many patients would have to receive throughout their lifetime to have a chance at leading a healthy life. This study analyses the long-term effects of protracted ART, highlighting the variations with age and gender. This research’s findings are relevant to public health actors (doctors, pharmaceutical companies, and Ministries of Public Health) in managing HIV/AIDS treatment. Read the article here.
Distributed by African Media Agency (AMA) on behalf of the African Institute for Mathematical Sciences (AIMS).
Founded in 2003, the African Institute for Mathematical Sciences (AIMS) is a pan-African network of centres of excellence for post-graduate training in mathematical sciences, research and public engagement in STEM. With centres in South Africa, Senegal, Ghana, Cameroon and Rwanda, AIMS is leading Africa’s socio-economic transformation through innovative scientific training, cutting-edge research, and public engagement. With expertly tailored academic and non-academic programs spanning through Centres of Excellence, Research Centres, the AIMS Industry Initiative and gender-responsive Teacher Training, AIMS equally created two critical initiatives: Quantum Leap Africa, which aspires to do leading-edge research in quantum science, and the Next Einstein Forum, which is positioning Africa to become an important player in global science.
For more information, visit www.nexteinstein.org.
Dr Layih Butake,
Senior Outreach Manager & Acting Director of Communications, AIMS
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