Browsing by Author "Magatti, Josiah"
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Item African Burkitt Lymphoma: Age-Specific Risk and Correlations with Malaria Biomarkers(The American journal of tropical medicine and hygiene, 2011) Emmanuel, Benjamin; Kawira, Esther; Ogwang, Martin D.; Wabinga, Henry; Magatti, Josiah; Nkrumah, Francis; Neequaye, Janet; Bhatia, Kishor; Brubaker, Glen; Biggar, Robert J.; Mbulaiteye, Sam M.African Burkitt lymphoma is an aggressive B-cell, non-Hodgkin lymphoma linked to Plasmodium falciparum malaria. Malaria biomarkers related to onset of African Burkitt lymphoma are unknown. We correlated agespecific patterns of 2,602 cases of African Burkitt lymphoma (60% male, mean ± SD age = 7.1 ± 2.9 years) from Uganda, Ghana, and Tanzania with malaria biomarkers published from these countries. Age-specific patterns of this disease and mean multiplicity of P. falciparum malaria parasites, defined as the average number of distinct genotypes per positive blood sample based on the merozoite surface protein-2 assessed by polymerase chain reaction, were correlated and both peaked between 5 and 9 years. This pattern, which was strong and consistent across regions, contrasted parasite prevalence, which peaked at 2 years and decreased slightly, and geometric mean parasite density, which peaked between 2 and 3 years and decreased sharply. Our findings suggest that concurrent infection with multiple malaria genotypes may be related to onset of African Burkitt lymphoma.Item Risk factors for Burkitt lymphoma in children in East Africa(Research Square, 2019) Peprah, Sally; Ogwang, Martin D.; Kerchan, Patrick; Reynolds, Steven J.; Tenge, Constance N.; Were, Pamela A.; Kuremu, Robert T.; Wekesa, Walter N.; Sumb, Peter O.; Masalu, Nestory; Kawira, Esther; Magatti, Josiah; Kinyera, Tobias; Otim, IsaacEndemic Burkitt lymphoma (eBL), a malignancy of immune B cells, is the most common childhood cancer in sub-Saharan Africa eBL is curable when it's identified early, but it's rapidly fatal without treatment Children in sub-Saharan Africa are over 50 times more likely to develop eBL than children living anywhere else in the world Unfortunately, few studies have examined the risk factors associated with eBL To address that gap, researchers conducted a study of eBL in children in three countries in East Africa They analyzed the relationship between eBL and infections, environmental, and genetic risk factors and focused their conclusions on results observed in at least two countries to minimize false-positives Risk of eBL was associated with low socio-economic status inpatient malaria treatment and living in areas targeted for malaria suppression In addition to exploring eBL risk factors, this study also demonstrates the potential to study cancer risk in East Africa and to detect, treat, or prevent eBL Learn more at emblem.cancer.gov Peprah et al. Risk factors for Burkitt lymphoma in East African children and minors. Int. J. Cancer. (2019)