Browsing by Author "Nansunga, Miriam"

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    Antimalarial Combination Therapies Increase Gastric Ulcers Through an Imbalance of Basic Antioxidative‑Oxidative Enzymes in Male Wistar Rats.
    (Kabale University, 2020) Kalange, Muhamudu; Nansunga, Miriam; Keneth Iceland, Kasozi; Kasolo, Josephine; Namulema, Jackline; Kasande Atusiimirwe, Jovile; Tiyo Ayikobua, Emanuel; Ssempijja, Fred; Munanura, Edson Ireeta; Matama, Kevin; Semuyaba, Ibrahim; Zirintunda, Gerald Gerald; Okpanachi, Alfred Omachonu
    Objective: Antimalarials are globally used against plasmodium infections, however, information on the safety of new antimalarial combination therapies on the gastric mucosa is scarce. The aim of this study was to investigate the effects of Artesunate-Amodiaquine and Artemether-Lumefantrine on ulcer induction. Malondialdehyde (MDA), reduced glutathione (GSH) and major histological changes in male Wistar rats following ulcer induction using Indomethacin were investigated. Gastric ulcers were in four groups; Group I was administered Artesunate, group II received Artesunate- Amodiaquine, group III received Artemether-Lumefantrine, and group IV was a positive control (normal saline). GroupV was the negative control consisting of healthy rats. Results: Antimalarial combination therapies were associated with a high gastric ulcer index than a single antimalarial agent, Artesunate. In addition, levels of MDA were significantly higher in the combination of therapies while levels of GSH were lower in comparison to Artesunate and the negative control. Microscopically, antimalarial combination therapies were associated with severe inflammation and tissue damage than Artesunate in the gastric mucosa showing that antimalarial combination therapies exert their toxic effects through oxidative stress mechanisms, and this leads to cellular damage. Findings in this study demonstrate a need to revisit information on the pharmacodynamics of major circulating antimalarial agents in developing countries. Keywords: Antimalarials, Pharmacodynamics, Antimalarial Agents, Malaria, Developing Countries, Gastric Ulcers.
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    Cerebral Cortical Activity During Academic Stress Amongst Undergraduate Medical Students at Kampala International University (Uganda)
    (Kabale University, 2022) Mujinya, Regan; Kalange, Muhamudu; Ochieng, Juma John; Ninsiima, Herbert Izo; Eze, Ejike Daniel; Afodun, Adam Moyosore; Nabirumbi, Ritah; Sulaiman, Sheu Oluwadare; Kairania, Emmanuel; Echoru, Isaac; Okpanachi, Alfred Omachonu; Matama, Kevin; Asiimwe, Oscar Hilary; Nambuya, Grace; Usman, Ibe Michael; Obado, Osuwat Lawrence; Zirintunda, Gerald; Ssempijja, Fred; Nansunga, Miriam; Matovu, Henry; Ayikobua, Emmanuel Tiyo; Nganda, Ponsiano Ernest; Onanyang, David; Ekou, Justine; Musinguzi, Simon Peter; Ssimbwa, Godfrey; Keneth Iceland, Kasozi
    Background: Stress among medical students is related to their academic lifespan; however, information on brain health among medical students from developing countries continues to be scarce. The objective of this study was to establish perceived academic stress levels, assess the ability to cope with stress, and investigate its effects on the visual reaction time (VRT), audio reaction time (ART), and tactile reaction time (TRT) in the somatosensory cortex among medical students of Uganda. Methods: This was a cross-sectional study conducted among preclinical (n = 88) and clinical (n = 96) undergraduate medical students at Kampala International University Western Campus. A standard Perceived Stress Scale (PSS) was used to categorize stress into low, moderate, and severe while the ability to cope with stress was categorized into below average, average, above average, and superior stresscoper (SS). Data on reaction time were acquired through VRT, ART, and TRT using the catch-a-ruler experiment, and this was analyzed using SPSS version 20. Results: This study shows that preclinical students are more stressed than clinical students (PSS prevalence for low stress = preclinical; clinical: 40, 60%). Moderate stress was 48.4 and 51.6% while high perceived stress was 75 and 25% among preclinical and clinical students. Among male and female students in preclinical years, higher TRT and VRT were found in clinical students showing that stress affects the tactile and visual cortical areas in the brain, although the VRT scores were only significantly (P = 0.0123) poor in male students than female students in biomedical sciences. Also, highly stressed individuals had higher TRT and ART and low VRT. SS had high VRT and ART and low TRT in preclinical students, demonstrating the importance of the visual cortex in stress plasticity. Multiple regression showed a close relationship between PSS, ability to cope with stress, age, and educational level (P < 0.05), demonstrating the importance of social and psychological support, especially in the biomedical sciences. Conclusion: Preclinical students suffer more from stress and are poorer SS than clinical students. This strongly impairs their cortical regions in the brain, thus affecting their academic productivity. Keywords:Brain Stress, Medical Education, Cerebral Cortex, Brains, Africans, Reaction Time (RT), Academic Stress
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    ItemOpen Access
    Correction to: Antimalarial Combination Therapies Increase Gastric Ulcers Through an Imbalance of Basic Antioxidative‑Oxidative Enzymes in Male Wistar Rats.
    (Kabale University, 2020) Kalange, Muhamudu; Nansunga, Miriam; Keneth Iceland, Kasozi; Kasolo, Josephine; Namulema, Jackline; Atusiimirwe, Jovial Kasande; Emmanuel Tiyo Ayikobua, Emmanuel Tiyo; Ssempijja, Fred; Munanura, Edson Ireeta; Matama, Kevin; Semuyaba, Ibrahim; Zirintunda, Gerald; Okpanachi, Alfred O.