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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/13472

Title: The incidence of malaria and the comparison of hematological and biochemical indices of Plasmodium falciparum-parasitemic and aparasitemic sickle cell disease (SCD) patients
Authors: NSIAH, K.
DZOGBEFIA, V. P.
ANSONG, D.
BOATENG, H.
OCLOO, D.
OSEI-FREMPONG, E.
FREMPONG, N. KENA
OSEI AKOTO, Alex
Keywords: Sickle cell anemia
hemoglobinopathy
red cell
reticulocytes
malaria
mathematical model
Issue Date: 2010
Publisher: International Journal of Laboratory Hematology
Abstract: Hemolytic anemia is common in sickle cell disease (SCD), but the course and extent differ, depending on genetic, epigenetic, and environmental factors. In the malaria-endemic tropical environment, some vulnerable subjects would be infected and the impact of infection would vary. Therefore, this study was to find malaria incidence and the associated changes in some laboratory indices in 330 SCD subjects. Following blood smear preparation for falciparum detection, hematological and biochemical indices were measured for a comparison of parasitemic and age-matched, genotype-matched, and sex-matched nonparasitemics. For sixty-nine parasitemics, constituting about 21% of all subjects studied, and sixty-six matched nonparasitemics, hematological indices (hemoglobin, white-cell count, red-cell count, mean cellular volume, reticulocyte count, and HbF) as well as biochemical indices (LDH, total bilirubin, AST, and ALT) were determined. For all quantities, except the reticulocyte count (12.3% ± 12.4% for parasitemics and 23.6% ± 17.7% for nonparasitemics), no statistically significant differences were observed. Classification of both cohorts according to their genotypes showed some intergenotypic differences for hemoglobin and WBC counts. Mathematical modeling of the reticulocyte counts shows the distribution in the parasitemics followed an exponential pattern, while the nonparasitemic showed a polynomial distribution, with each model characterized by an equation of best fit. The study has shown about 21% incidence of parasitemia. All differences in the indices can be seen as normal variations, unattributable to the malaria infection. However, the lower reticulocyte count in the parasitemic is a reflection of lowered erythropoietic activity because of the infection. ORIGINAL ARTICLE INTERNATIONAL JOURNAL OF LABORATORY HEMATOLOGY
Description: This article is published in International Journal of Laboratory Hematology and doi:10.1111/j.1751-553X.2010.01231.x
URI: 10.1111/j.1751-553X.2010.01231.x
http://hdl.handle.net/123456789/13472
Appears in Collections:College of Agric and Natural Resources

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