Browsing by Author "Kasozi, Keneth Iceland"

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    An analysis of Heavy Metals Contamination and Estimating the Daily intakes of Vegetables from Uganda
    (Toxicology Research and Application, 2021) Kasozi, Keneth Iceland; Otim, Eric Oloya; Ninsiima, Herbert Izo; Zirintunda, Gerald; Tamale, Andrew; Musoke, Grace Henry; Muyinda, Robert; Ssempijja, Fred
    Environmental contamination with elevated levels of copper (Cu), cobalt (Co), iron (Fe), zinc (Zn), lead (Pb), chromium (Cr6+), cadmium (Cd), and nickel (Ni)—all states of which are found in Uganda—raises health risk to the public. Pb, Cr6+, Cd, and Ni for instance are generally considered nonessential to cellular functions, notwithstanding the importance of the oxidative state of the metals in bioavailability. As such, we aimed in this study (i) to evaluate heavy metal concentrations in four vegetables from a typical open-air market in Uganda, (ii) to assess the safety of consuming these vegetables against the World Health Organization (WHO) recommended limits of heavy metals consumption, and (iii) to formulate a model of estimated daily intake (EDI) among consumers in the country.This was a cross-sectional study conducted in five georeferenced markets of Bushenyi district in January 2020. Amaranthus, cabbages, scarlet eggplants, and tomatoes were collected from open markets, processed, and analyzed by atomic absorption spectrometry. Modeled EDI, principal component (PCA) and cluster analysis (CA) were conducted to identify relationships in the samples.The levels of essential elements in the four vegetables were found to fall from Co > Cu > Fe > Zn. Those of non-essential metals were significantly higher and followed the pattern Cd > Cr > Pb > Ni. The highest EDI values were those of Cu in scarlet eggplants, Zn in amaranthus, Fe in amaranthus, Co in amaranthus, Pb in cabbages, total Cr in scarlet eggplant, Cd in cabbages and tomatoes, and Ni in cabbages. In comparison to international limits, EDIs for Zn, Cu, Co and Fe were low while Ni in cabbages were high. PCA showed high variations in scarlet eggplant and amaranthus. The study vegetables were found to be related with each other, not according to the location of the markets from where they were obtained, but according to their species by CA.The presence of non-essential elements above WHO limits raises policy challenges for the consumption and marketing of vegetables in the study area. Furthermore, low EDIs of essential elements in the vegetables create demand for nutritious foods to promote healthy communities.
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    Annona muricata Linn and Khaya grandifoliola C.DC. Reduce Oxidative Stress In Vitro and Ameliorate Plasmodium berghei-Induced Parasitemia and Cytokines in BALB/c Mice
    (Journal of Evidence-Based Integrative Medicine, 2021) Onohuean, Hope; Alagbonsi, Abdullateef I.; Usman, Ibe M.; Kasozi, Keneth Iceland; Alexiou, Athanasios; Batiha, Gaber El-Saber
    Annona muricata and Khaya grandifoliola are ethnomedicinally used for the treatment of malaria and have been experimentally shown to have an anti-plasmodial effect, but the mechanisms involved are not fully understood. This study investigated the effect of the ethanol extracts of their leaves on parasitemia, radical scavenging and cytokines in Plasmodium berghei ANKA-infected BALB/c mice. BALB/c mice were infected with P. berghei and treated with chloroquine, A. muricata or K. grandifoliola extract for 4 days. The percentage of parasitemia and the level of cytokine expression were determined after treatment. Trace element, phytochemical and nitric oxide (NO) scavenging activity, 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging properties assays were done to study the antioxidant effects of AN and KG in vitro. P. berghei consistently increased parasitemia in BALB/c mice. The tested doses (100-, 200-, and 400 mg/kg) of A. muricata and K. grandifoliola attenuated the P. berghei-induced elevation of parasitemia and cytokines (TNF-α, IL-5, and IL-6) in vivo during the experimental period, though not as much as chloroquine. Moreover, both extracts scavenged the DPPH and NO radicals, though A. muricata had more anti-oxidant effect than K. grandifoliola in-vitro. The ethanol extracts of A. muricata and K. grandifoliola reduce parasitemia in P. berghei-treated mice BALB/c by scavenging free radicals and reducing cytokines, though the extracts were not as effective as chloroquine
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    Anti-obesity Effects of Erythrina Abyssinica Stem Bark Extract in Flies Exposed to a High Fat Diet
    (Heliyon, 2022) Asiimwe, Oscar Hilary; Wampande, Eddie; Rubaihayo, John; Kasozi, Keneth Iceland; Kinyi, Hellen Wambui
    An in vitro assay on Sigmoidin A from Erythrina abyssinica stem bark revealed its potency to inhibit pancreatic lipase. However, studies indicate activity of extract bioactive compounds in combination far exceed the favorable effects of each individual compound due to synergy and additive effects. In this study, we provide information on the effect of E. abyssinica stem bark extract in Drosophila melanogaster. The objective of the study was to determine the safety and effects of E. abyssinica stem bark extract on fly survival, body weight, triglycerides, sterol, total protein, and catalase activity of obese male D. melanogaster.
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    Antimalarial Combination Therapies Increase Gastric Ulcers through an Imbalance of Basic Antioxidative-Oxidative Enzymes in Male Wistar Rats
    (BMC Research Notes, 2020) Kalange, Muhamudu; Nansunga, Miriam; Kasozi, Keneth Iceland; Kasolo, Josephine; Namulema, Jackline; Atusiimirwe, Jovile Kasande; Ayikobua, Emmanuel Tiyo
    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). Group V was the negative control consisting of healthy rats.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.
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    Anxiety, Anger and Depression Amongst Low-Income Earners in Southwestern Uganda During the COVID-19 Total Lockdown
    (Frontiers in public health, 2021) Archibong, Victor; Usman, Ibe Michael; Kasozi, Keneth Iceland; Osamudiamwen Aigbogun, Eric; Josiah, Ifie; Monima, Ann Lemuel; Ssebuufu, Robinson; Chekwech, Gaudencia; Dominic Terkimbi, Swase; Owoisinke, Okon; Mbiydzenyuy, Ngala Elvis; Adeoye, Azeez; Ojodale Aruwa, Joshua; Moyosore Afodun, Adam; Odoma, Saidi; Ssempijja, Fred; Tiyo Ayikobua, Emmanuel; Tabakwot Ayuba, John; Nankya, Viola; Onongha, Comfort; Henry, Sussan; Matama, Kevin; Yusuf, Helen; Nalugo, Halima; MacLeod, Ewan; Christina Welburn, Susan
    Low-income earners are particularly vulnerable to mental health, consequence of the coronavirus disease 2019 (COVID-19) lockdown restrictions, due to a temporary or permanent loss of income and livelihood, coupled with government-enforced measures of social distancing. This study evaluates the mental health status among low-income earners in southwestern Uganda during the first total COVID-19 lockdown in Uganda. Methods: A cross-sectional descriptive study was undertaken amongst earners whose income falls below the poverty threshold. Two hundred and fifty-three (n = 253) male and female low-income earners between the ages of 18 and 60 years of age were recruited to the study. Modified generalized anxiety disorder (GAD-7), Spielberger’s State-Trait Anger Expression Inventory-2 (STAXI-2), and Beck Depression Inventory (BDI) tools as appropriate were used to assess anxiety, anger, and depression respectively among our respondents. Results: Severe anxiety (68.8%) followed by moderate depression (60.5%) and moderate anger (56.9%) were the most common mental health challenges experienced by low-income earners in Bushenyi district. Awareness of mental healthcare increased with the age of respondents in both males and females. A linear relationship was observed with age and depression (r = 0.154, P = 0.014) while positive correlations were observed between anxiety and anger (r = 0.254, P < 0.001); anxiety and depression (r = 0.153, P = 0.015) and anger and depression (r = 0.153, P = 0.015). Conclusion: The study shows the importance of mental health awareness in low resource settings during the current COVID-19 pandemic. Females were identified as persons at risk to mental depression, while anger was highest amongst young males.
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    Bee Venom—A Potential Complementary Medicine Candidate for SARS-CoV-2 Infections
    (Frontiers in public health, 2020) Kasozi, Keneth Iceland; Alqarni, Mohammed; Zirintunda, Gerald; Ssempijja, Fred; Musinguzi, Simon Peter; Matama, Kevin; Mbiydzenyuy, Ngala Elvis; Welburn, Susan Christina
    Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is characterized by severe cytokine storm syndrome following inflammation. SARS-CoV-2 directly interacts with angiotensin-converting enzyme 2 (ACE-2) receptors in the human body. Complementary therapies that impact on expression of IgE and IgG antibodies, including administration of bee venom (BV), have efficacy in the management of arthritis, and Parkinson's disease. A recent epidemiological study in China showed that local beekeepers have a level of immunity against SARS-CoV-2 with and without previous exposure to virus. BV anti-inflammatory properties are associated with melittin and phospholipase A2 (PLA2), both of which show activity against enveloped and non-enveloped viruses, including H1N1 and HIV, with activity mediated through antagonist activity against interleukin-6 (IL-6), IL-8, interferon-γ (IFN-γ), and tumor necrosis factor-α (TNF-α). Melittin is associated with the underexpression of proinflammatory cytokines, including nuclear factor-kappa B (NF-κB), extracellular signal-regulated kinases (ERK1/2), and protein kinase Akt. BV therapy also involves group III secretory phospholipase A2 in the management of respiratory and neurological diseases. BV activation of the cellular and humoral immune systems should be explored for the application of complementary medicine for the management of SARS-CoV-2 infections. BV “vaccination” is used to immunize against cytomegalovirus and can suppress metastases through the PLA2 and phosphatidylinositol-(3,4)-bisphosphate pathways. That BV shows efficacy for HIV and H1NI offers opportunity as a candidate for complementary therapy for protection against SARS-CoV-2.
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    Calcium and s100a1 Protein Balance in the Brain– Heart Axis in Diabetic Male Wistar Rats
    (Journal of Basic and Clinical Physiology and Pharmacology, 2021) Kasozi, Keneth Iceland; Nakimbugwe, Dorothy; Ninsiima, Herbert Izo; Kasolo, Josephine; Matama, Kevin; Owembabazi, Elna; Ssempijja, Fred
    Calcium deregulation in diabetes mellitus (DM) is central to the brain–heart axis pathology. This has led to the use of medical plants in complementary medicine such as Amaranthus hypochondriacus (GA). The objective of the study was to establish the effects of grain amaranth feed supplementation on calcium, s100al protein and antioxidant levels on the brain–heart axis in diabetic male Wistar rats. The study involved six groups (n=5) with DM being induced in 20 rats. To the diabetic rats, Group I received mixtard®, Group II was positive control, Groups III and IV received GA feed supplementation at 25 and 50%. In the nondiabetic rats (n=10), Group V received 50% grain amaranth while Group VI was the negative control. The brain and heart tissues were harvested after five weeks and processed using standard methods. Grain amaranth feed supplementation led to improved calcium levels in DM as compared to the positive control. This also led to increased s100a1, antioxidant levels in the brain–heart axis during DM. This then protected the tissues against oxidative damage, thus preserving tissue function and structure. Grain amaranth’s actions on calcium signaling subsequently affected s100a1 protein levels, leading to improved tissue function in diabetes.
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    Community Education Challenges in Young Adults of South Western Uganda
    (Open Journal of Epidemiology, 2015) Kasozi, Keneth Iceland; Echoru, Isaac; Mbiydzenyuy, Elvis Ngala; Kimwise, Aaron; Nansunga, Miriam; Semuyaba, Ibrahim; Kalange, Muhamudu; Ninsiima, Herbert Izo; Muggaga, Kintu; Emorut, Simon Peter
    The aim of this study was to identify the major challenges to community education and any health problem in Bushenyi district of South Western Uganda. Data collection was done through questionnaire and participants were randomly selected. This was a cross-sectional study carried out for a period of three months in 2012. A questionnaire was used to collect data and using onsite observations the responses were validated. A total of 260 participants from 65 homesteads were included in the study from 52 households. 144 were females and 116 males, of which 52.4% of the children were female and the rest male. The mean ± SEM age of females and males was 36 ± 8.6 and 29 ± 8.6 years respectively. In all the homesteads, 71% were headed by an adult male and only 29% were found to be headed by an adult female while none was headed by children. Inferential analysis showed (P = 0.02) that there are more females than male in the homesteads. Majority of the homesteads are being taken care of by women instead of men probably as a result of the high mortalities due to HIV/AIDS in the past decade and above all the movement of most men to urban centers in search of better sources of employment to support their families. Among school going age participant’s i.e. children and adolescents, only 59.6% were found to be attending school. There was no statistical significance (P = 0.16) between school attendance and age. Family responsibilities such as cooking for younger siblings by female participants, obligations on open market days are thought to be secondary limiting factors for community development and livelihood amongst young persons; thus a follow up study would be conducted to assess their associations in this community as this would raise major child abuse concerns which would need to be reported to the legal authorities for follow up.
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    Consumption of Raw Herbal Medicines Is Associated with Major Public Health Risks amongst Ugandans
    (Journal of Environmental and Public Health, 2020) Ssempijja, Fred; Kasozi, Keneth Iceland; Eze, Ejike Daniel; Tamale, Andrew; Matama, Kevin
    Community consumption of herbal plants in developing countries is a common practice, however, scarcity of information on their physiochemical composition is a major public health concern. In Uganda, Vernonia amygdalina is of interest in rural communities due to its therapeutical action on both bacterial and protozoal parasites, however no studies have been conducted to assess the heavy metal concentrations in traditional plants used in alternative medicine. The aim of the study was to establish concentrations of heavy metals in Vernonia amygdalina, model the estimated daily intake (EDI), and assess both the non-cancer-related health risk using the target hazard quotient (THQ), and the risk related to cancer through the incremental lifetime cancer risk (ILCR) for the Ugandan population. Methods. Leaves of Vernonia amygdalina were collected from 20 georeferenced villages and processed into powder in the laboratory using standard methods. These were then analyzed in the laboratory using an atomic absorption spectrometer for lead (Pb), chromium (Cr), copper (Cu), zinc (Zn), cobalt (Co), iron (Fe), cadmium (Cd), and nickel (Ni). Concentrations were compared against the World Health Organization (WHO) limits. The EDI, THQ, and ILCR were modelled and significance was measured at 95% confidence. Results. The study showed that mean ± SEM concentrations of heavy metals were highest in the order of Cr, 121.8 ± 4.291 ppm > Ni, 84.09 ± 2.725 ppm > Zn, 53.87 ± 2.277 ppm > Pb, 40.61 ± 3.891 ppm > Cu, 28.75 ± 2.202 ppm > Fe, 14.15 ± 0.7271 ppm > Co, 7.923 ± 0.7674 ppm > Cd, 0.1163 ± 0.005714 ppm. Concentrations of Pb, Cr, Zn, Co, and Ni were significantly higher than the WHO limits. The EDI was significantly higher in children than in adults, demonstrating an increased risk of toxicity in children. The THQ and ILCR were over 1000 times higher in all Ugandans, demonstrating the undesirable health risks following oral consumption of Vernonia amygdalina due to very high Cr and Ni toxicities, respectively. Conclusion. Consumption of raw Vernonia amygdalina was associated with a high carcinogenic risk, demonstrating a need to enact policies to promote physiochemical screening of herbal medicines used in developing countries against toxic compounds.
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    Correlations of Scapular Dimensions: A Tool to Identify Scapulae with Completely Ossied Superior Transverse Scapular Ligaments and Suprascapular Neuropathy
    (BMC Musculoskeletal Disorders, 2020) Adewale, Adesanya Olamide; Kegoye, Eric Simidi; Kasozi, Keneth Iceland; Nalugo, Halima; Ssempijja, Fred
    A better understanding of the anatomy of the suprascapular notch and relationship with scapular dimensions are vital in the diagnosis, prevention, and assessment of the suprascapular nerve (SN) entrapment syndrome. Our purposes were to classify the suprascapular notches, determine the prevalence of completely ossified superior transverse scapular ligament, scapular dimensions, and their relationship among the different types of the suprascapular notch (SSN). Methods: An experimental study in which the SSN types and scapular dimensions were determined using previous methods. Statistical analyses were done using GraphPad Prism v.6 and MS Excel Version 2019, one-way ANOVA was used to compare and Spearman’s correlation coefficient was used to evaluate the correlation of scapular dimensions. Results: The superior transverse scapular ligament (STSL) was completely ossified in 8% of cases. There were no significant differences between the scapular dimensions for the different SSN types. For type VI SSN there is a strong negative correlation between A, B against D. There are strong (positive or negative) correlations between types I and III from type VI for A-axis; types I, III from VI for B; type IV and VI for C axis; and type III and VI for D axis. Conclusions: The prevalence of the completely ossified STSL in our study was moderately high; the correlation studies suggest that the scapular dimensions could be a valuable tool in the prediction, diagnosis, prevention, and assessment of the SN neuropathy due to the scapulae with the completely ossified superior transverse scapular ligaments (type VI SSN). Further studies on correlation analyses of scapular dimensions and characteristics of suprascapular notches are vital.
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    COVID-19-Related Mental Health Burdens: Impact of Educational Level and Relationship Status Among Low-Income Earners of Western Uganda
    (Frontiers in public health, 2021) Lemuel, Ann Monima; Alghamdi, Saad; Archibong, Victor; Kasozi, Keneth Iceland; Ssebuufu, Robinson; Kabanyoro, Annet; Swase, Dominic Terkimbi; Ssempijja, Fred; Ayuba, John Tabakwot; Matama, Kevin; Kembabazi, Stellamaris; Kairania, Emmanuel; Batiha, Gaber El-Saber; Welburn, Susan Christina
    The study aimed to investigate the relationship between mental health with the level of education, relationship status, and awareness on mental health among low-income earners in Western Uganda. This was a cross-sectional descriptive study carried out among 253 participants. Anxiety, anger, and depression were assessed using a modified generalized anxiety disorder (GAD-7), Spielberger's State-Trait Anger Expression Inventory-2, and Beck Depression Inventory item tools, respectively. The majority of our respondents were male (n = 150/253, 59.3), had a secondary level of education (104/253, 41.1), and were single (137/253, 54.2). No formal education and primary education (r2 = 47.4% and 6.4%, respectively) had a negative correlation with awareness of mental health care. In addition, no formal education had a positive correlation with anger and depression (r2 = 1.9% and 0.3%, respectively). Singleness in this study had a negative correlation with awareness of mental health care, anger, and depression (r2 = 1.9, 0.8, and 0.3%, respectively), and a positive correlation with anxiety (r2 = 3.9%). It is evident that education and relationship status influenced awareness on mental health care and mental health state among low-income earners in Western Uganda during the first COVID-19 lockdown. Therefore, policymakers should strengthen social transformation through the proper engagement of low-income earners in this COVID-19 era.
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    Descriptive Analysis of Heavy Metals Content of Beef From Eastern Uganda and Their Safety for Public Consumption
    (Frontiers in Nutrition, 2021) Kasozi, Keneth Iceland; Hamira, Yunusu; Zirintunda, Gerald; Tamale, Andrew; Matama, Kevin; Ssempijja, Fred; Muyinda, Robert; Kawooya, Francis; Kisakye, Hellen; Bogere, Paul; Matovu, Henry; Etiang, Patrick; Ochieng, Juma John
    In this study, we initiated an effort to generate information about beef safety in Uganda. Our entry point was to assess by atomic absorption spectrophotometry the levels of essential elements copper (Cu), cobalt (Co), iron (Fe) and zinc (Zn), and non-essential elements lead (Pb), chromium (Cr), nickel (Ni), and cadmium (Cd) in 40 beef samples collected from within and around Soroti (Uganda). The information was used to evaluate the safety of consuming such beef against the World Health Organization (WHO) limits. The latter was accomplished by (i) estimating the daily intake (EDI) of each metal in the study area, (ii) modeling the non-cancer health risk using the target hazard quotient (THQ) and (iii) modeling the cancer risk using the incremental lifetime cancer risk (ILCR). The study finds that the mean concentrations (±95% CI) and EDI were in the order of Fe > Zn > Cr > Ni > Pb > Co > Cu > Cd. Cancer risk was found to be due to Ni > Cr > Cd > Pb and significantly higher in children than adults. The latter particularly demonstrates the importance of Ni poisoning in the study area. Overall, while essential elements in our beef samples were below WHO limits (hence no health risks), non-essential elements had high health and cancer risks due to higher levels of Cr and Ni.
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    A Descriptive-Multivariate Analysis of Community Knowledge, Confidence, and Trust in COVID-19 Clinical Trials among Healthcare Workers in Uganda
    (Vaccines, 2021) Kasozi, Keneth Iceland; Osuwat, Lawrence Obado; Ninsiima, Herbert Izo; Nalugo, Halima; Kato, Charles Drago; Kiyimba, Kenedy; Matama, Kevin
    Misinformation and mistrust often undermines community vaccine uptake, yet information in rural communities, especially of developing countries, is scarce. This study aimed to identify major challenges associated with coronavirus disease 2019 (COVID-19) vaccine clinical trials among healthcare workers and staff in Uganda. Methods—a rapid exploratory survey was conducted over 5 weeks among 260 respondents (66% male) from healthcare centers across the country using an online questionnaire. Twenty-seven questions assessed knowledge, confidence, and trust scores on COVID-19 vaccine clinical trials from participants in 46 districts in Uganda. Results—we found low levels of knowledge (i.e., confusing COVID-19 with Ebola) with males being more informed than females (OR = 1.5, 95% CI: 0.7–3.0), and mistrust associated with policy decisions to promote herbal treatments in Uganda and the rushed international clinical trials, highlighting challenges for the upcoming Oxford–AstraZeneca vaccinations. Knowledge, confidence and trust scores were higher among the least educated (certificate vs. bachelor degree holders). We also found a high level of skepticism and possible community resistance to DNA recombinant vaccines, such as the Oxford–AstraZeneca vaccine. Preference for herbal treatments (38/260; 14.6%, 95% CI: 10.7–19.3) currently being promoted by the Ugandan government raises major policy concerns. High fear and mistrust for COVID-19 vaccine clinical trials was more common among wealthier participants and more affluent regions of the country. Conclusion—our study found that knowledge, confidence, and trust in COVID-19 vaccines was low among healthcare workers in Uganda, especially those with higher wealth and educational status. There is a need to increase transparency and inclusive participation to address these issues before new trials of COVID-19 vaccines are initiated.
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    Dietary Restriction Induces a Stable Metabolic Obesity Phenotype in Drosophila Melanogaster
    (Research Square, 2021) Asiimwe, Oscar Hilary; Oluwadare Sulaiman, Sheu; Ochieng, Juma John; Onanyang, David; Obado Osuwat, Lawrence; Ndinawe, John Mark; Omachonu Okpanachi, Alfred; Kasozi, Keneth Iceland
    Challenges associated with current nutritional models to induce obesity in Drosophila melanogaster created a rationale for this study. The objective of the study was to investigate biochemical changes associated with high-fat diet (HFD), high sucrose diet (HSD), and a protein-restricted diet (DR) to induce a healthy metabolic obesity state. Drosophila melanogaster were fed to four experimental diets: regular food (control), HFD, HSD, and DR, for four weeks. Peristaltic waves were measured on 3rd instar larvae, while negative geotaxis, body mass, catalase activity; and total triglycerides, sterol, and protein were measured in adult Drosophila melanogaster. Results DR produced a Drosophila melanogaster phenotype which had superior adaptive advantages than that generated from HFD and HSD. HFD was the best phenotype during larval stages; however, locomotory, body mass, triglyceride, sterol concentrations, and catalase activity were highest in the DR phenotype during adulthood. High catalase activity and high triglyceride content demonstrated a balanced and healthy metabolic obesity status than in other phenotypes in the adult stage. Evolutionary changes are responsible for the selective advantage of the DR phenotype over the HFD phenotype. Prospective studies to guide therapy and community behavior should place more emphasis on the DR phenotypes in Drosophila melanogaster.
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    Effects of b-Blockers on the Sympathetic and Cytokines Storms in Covid-19
    (Frontiers in Immunology, 2021) Al-kuraishy, Hayder M.; Al-Gareeb, Ali Ismail; Kasozi, Keneth Iceland; Zirintunda, Gerald; Welburn, Susan Christina; Batiha, Gaber El-Saber
    Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a causative virus in the development of coronavirus disease 2019 (Covid-19) pandemic. Respiratory manifestations of SARS-CoV-2 infection such as acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) leads to hypoxia, oxidative stress, and sympatho-activation and in severe cases leads to sympathetic storm (SS). On the other hand, an exaggerated immune response to the SARS-CoV-2 invasion may lead to uncontrolled release of pro-inflammatory cytokine development of cytokine storm (CS). In Covid-19, there are interactive interactions between CS and SS in the development of multi-organ failure (MOF). Interestingly, cutting the bridge between CS and SS by anti-inflammatory and anti-adrenergic agents may mitigate complications that are induced by SARS-CoV-2 infection in severely affected Covid-19 patients. The potential mechanisms of SS in Covid-19 are through different pathways such as hypoxia, which activate the central sympathetic center through carotid bodies chemosensory input and induced pro-inflammatory cytokines, which cross the blood-brain barrier and activation of the sympathetic center. β2-receptors signaling pathway play a crucial role in the production of pro-inflammatory cytokines, macrophage activation, and B-cells for the production of antibodies with inflammation exacerbation. β-blockers have anti-inflammatory effects through reduction release of pro-inflammatory cytokines with inhibition of NF-κB. In conclusion, β-blockers interrupt this interaction through inhibition of several mediators of CS and SS with prevention development of neural-cytokine loop in SARS-CoV-2 infection. Evidence from this study triggers an idea for future prospective studies to confirm the potential role of β-blockers in the management of Covid-19.
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    Embracing One Health offers practical strategies in management of COVID-19 for Africa
    (The Pan African Medical Journal, 2020) Kasozi, Keneth Iceland; Mujinya, Regan; Bogere, Paul; Ekou, Justine; Zirintunda, Gerald; Ahimbisibwe, Salaviriuse; Matama, Kevin; Ninsiima, Herbert Izo; Ayikobua, Emmanuel Tiyo; Ssimbwa, Godfrey; Musinguzi, Simon Peter; Muyinda, Robert; Ssempijja, Fred; Matovu, Henry; MacLeod, Ewan; Anderson, Neil Euan; Welburn, Susan Christina
    The coronavirus, COVID-19 outbreak has now affected over 60% of African countries in less than two months , gaining a foothold through major economic and transport hubs on the African continent including Egypt, Algeria, Nigeria, South Africa and Kenya. Travel restrictions imposed against citizens from countries with major outbreaks including China, USA and those in Europe were too late . African Union member states as of early April 2020 are reporting 6,470 cases and 241 deaths from COVID-19 reporting growth as “close to exponential”. Africa Centers for Disease Control and Prevention acknowledges the virus is an existential threat to African countries and that with local transmission now underway many would pass the 10,000-infection mark by the end of April. While the impact of wearing of face masks for control of COVID-19 remains controversial, it is inarguable that respiratory transmission needs to be prevented. Currently, there is a global shortage of masks and personal protective equipment (PPE) and distribution is being rationed in developed countries to retain this for workers in the health system, showing that developing countries in Africa are bound to suffer more should the pandemic be mismanaged at these early stages. In addition, health systems in developing countries, already crippled from years of underinvestment will be compromised unless practical and realistic prevention strategies are put in place. China, Italy, France, UK and USA, all with sophisticated health systems, have found COVID-19 challenging. Infection is increasing across the African subcontinent and health systems will struggle as the pandemic sweeps into and across Africa.
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    Emerging Anthelmintic Resistance in Poultry: Can Ethnopharmacological Approaches Offer a Solution?
    (Frontiers in pharmacology, 2021) Zirintunda, Gerald; Biryomumaisho, Savino; Kasozi, Keneth Iceland; Kateregga, John; Vudriko, Patrick; Nalule, Sarah; Olila, Deogracious; Kajoba, Mariam; Matama, Kevin; Kwizera, Mercy Rukundo; Abdelgawad, Mohamed A.; Acai-Okwee, James
    Limited pharmacological studies have been conducted on plant species used against poultry helminths. The objective of this study was to provide a basis for plant based anthelmintics as possible alternatives against poultry anthelmintic resistance. The study justified the need for alternative anthelmintics. The study places emphasis on the increasing anthelmintic resistance, mechanism of resistance, and preparational protocols for plant anthelmintics and their associated mechanism of action. Pharmaceutical studies on plants as alternative therapies for the control of helminth parasites have not been fully explored especially in several developing countries. Plants from a broad range of species produce a wide variety of compounds that are potential anthelmintics candidates. Important phenolic acids have been found in Brassica rapa L. and Terminalia avicenniodes Guill. and Perri that affect the cell signaling pathways and gene expression. Benzo (c) phenanthridine and isoquinoline alkaloids are neurotoxic to helminths. Steroidal saponins (polyphyllin D and dioscin) interact with helminthic mitochondrial activity, alter cell membrane permeability, vacuolation and membrane damage. Benzyl isothiocyanate glucosinolates interfere with DNA replication and protein expression, while isoflavones from Acacia oxyphylla cause helminth flaccid paralysis, inhibit energy generation, and affect calcium utilization. Condensed tannins have been shown to cause the death of nematodes and paralysis leading to expulsion from the gastro-intestinal tract. Flavonoids from Chenopodium album L and Mangifera indica L act through the action of phosphodiesterase and Ca2+-ATPase, and flavonoids and tannins have been shown to act synergistically and are complementary to praziquantel. Artemisinins from Artemisia cina O. Berg are known to disrupt mitochondrial ATP production. Terpenoids from Cucurbita moschata L disrupt neurotransmission leading to paralysis as well as disruption of egg hatching. Yeast particle encapsulated terpenes are effective for the control of albendazole-resistant helminths.
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    Epidemiology of Increasing Hemo-Parasite Burden in Ugandan Cattle
    (Open Journal of Veterinary Medicine, 2014) Kasozi, Keneth Iceland; Matovu, Enoch; Tayebwa, Dickson Stuart; Natuhwera, Jemimah; Mugezi, Israel; Mahero, Michael
    Hemo-parasites (HP) are one of the major constraints to the economic development of the livestock industry in Uganda. Generally, the occurrence and importance of HP is a reflection of complex interactions involving the causative organisms, tick vectors, the vertebrate hosts and the environment. We carried out a cross sectional study to identify and determine the prevalence of the major HPs in Central and Western Uganda, to form a baseline for appropriate interventions. A total of 295 bovine samples were analyzed from 15 districts of Uganda; 56.3% being from the Central and 43.7% from the Western region of the country for a period of six months, and a questionnaire was administered to the farmers. Thin peripheral blood smears stained with Giemsa were used during the laboratory identification of the parasites. The disease prevalence was established at 47.4%, 6.7%, 1.9% and 14.4% for Theleria parva, Babesia spp., Trypanasoma brucei, Anaplasma spp. with a corresponding disease risk ratio (DRR) of 67.4%, 9.5%, 2.6%, 20.5% respectively in Uganda. The odds of having an infection from the Central region were 1.7 times greater (P < 0.05) than those from the Western region with a corresponding risk ratio of 1.2 (CI.1.1, 2.84, 95%), which showed that there exist marked differences between the two regions. Mean PCV was at 29.8%, and majority (59%) of infected animals had low PCV which varied across the months. These showed that generally, cattle in the West are more severely affected by HP than those from the Central region. The questionnaire revealed that 100% of the farmer treatments are based on clinical sign presentation, with occasional reliance on veterinarians. In conclusion, the burden of hemo-parasites is steadily increasing across the regions, and the current policies are not helping farmers who are hit the hardest by the development of antibiotic and acaricide resistance. These findings, along with previous studies, suggest that eradication HP is not feasible unless there are radical changes implemented, and that current practices are expensive and unsustainable. Further studies would be carried out to provide knowledge on the level of antibiotic resistance for the promotion of veterinary public health and trade.
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    Epidemiology of Trypanosomiasis in Wildlife—Implications for Humans at the Wildlife Interface in Africa
    (Frontiers in Veterinary Science, 2021) Kasozi, Keneth Iceland; Zirintunda, Gerald; Ssempijja, Fred; Buyinza, Bridget; Matama, Kevin; Nakimbugwe, Helen N.; Onanyang, David; Bogere, Paul; Ochieng, Juma John; Matovu, Wycliff; Nalumenya, David Paul; Batiha, Gaber El-Saber; Osuwat, Lawrence Obado; Omadang, Leonard; Welburn, Susan Christina
    While both human and animal trypanosomiasis continue to present as major human and animal public health constraints globally, detailed analyses of trypanosome wildlife reservoir hosts remain sparse. African animal trypanosomiasis (AAT) affects both livestock and wildlife carrying a significant risk of spillover and cross-transmission of species and strains between populations. Increased human activity together with pressure on land resources is increasing wildlife–livestock–human infections. Increasing proximity between human settlements and grazing lands to wildlife reserves and game parks only serves to exacerbate zoonotic risk. Communities living and maintaining livestock on the fringes of wildlife-rich ecosystems require to have in place methods of vector control for prevention of AAT transmission and for the treatment of their livestock. Major Trypanosoma spp. include Trypanosoma brucei rhodesiense, Trypanosoma brucei gambiense, and Trypanosoma cruzi, pathogenic for humans, and Trypanosoma vivax, Trypanosoma congolense, Trypanosoma evansi, Trypanosoma brucei brucei, Trypanosoma dionisii, Trypanosoma thomasbancrofti, Trypanosma elephantis, Trypanosoma vegrandis, Trypanosoma copemani, Trypanosoma irwini, Trypanosoma copemani, Trypanosoma gilletti, Trypanosoma theileri, Trypanosoma godfreyi, Trypansoma simiae, and Trypanosoma (Megatrypanum) pestanai. Wildlife hosts for the trypansomatidae include subfamilies of Bovinae, Suidae, Pantherinae, Equidae, Alcephinae, Cercopithecinae, Crocodilinae, Pteropodidae, Peramelidae, Sigmodontidae, and Meliphagidae. Wildlife species are generally considered tolerant to trypanosome infection following centuries of coexistence of vectors and wildlife hosts. Tolerance is influenced by age, sex, species, and physiological condition and parasite challenge. Cyclic transmission through Glossina species occurs for T. congolense, T. simiae, T. vivax, T. brucei, and T. b. rhodesiense, T. b. gambiense, and within Reduviid bugs for T. cruzi. T. evansi is mechanically transmitted, and T. vixax is also commonly transmitted by biting flies including tsetse. Wildlife animal species serve as long-term reservoirs of infection, but the delicate acquired balance between trypanotolerance and trypanosome challenge can be disrupted by an increase in challenge and/or the introduction of new more virulent species into the ecosystem. There is a need to protect wildlife, animal, and human populations from the infectious consequences of encroachment to preserve and protect these populations. In this review, we explore the ecology and epidemiology of Trypanosoma spp. in wildlife.
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    Food Safety Analysis of Milk and Beef in Southwestern Uganda
    (Journal of environmental and public health, 2018) Kasozi, Keneth Iceland; Natabo, Phyllis Candy; Namubiru, Sarah; Tayebwa, Dickson Stuart; Tamale, Andrew; Bamaiyi, Pwaveno H.
    Inorganic pollutants in milk and beef are of major public health concern; however, information in Africa is still limited due to low food safety monitoring practices. In this study, we established levels of lead (Pb), zinc (Zn), cadmium (Cd), copper (Cu), and iron (Fe) in milk and beef and obtained the estimated daily intake (EDI) and incremental lifetime cancer risk (ILCR) as measures of risk to the Ugandan population. Materials and Methods. This was a cross-sectional study in which a total of 40 samples of milk and beef were collected from Bushenyi district in southwestern Uganda. Samples were analyzed by atomic absorbance spectrophotometer, and the EDI and ILCR were computed using the US EPA reference values. Results and Discussion. Heavy metal concentrations were highest in the order of Zn > Fe > Pb > Cu in milk samples, while in beef samples, concentrations were highest in the order of Zn > Pb > Fe > Cu and no Cd was detected. Furthermore, beef had significantly higher (P < 0.05) Pb and Fe concentrations than milk. The EDI was highest in children, and this was followed by very high ILCR levels, showing that milk and beef are not safe for children in Uganda. Bearing in mind that a high HI was shown, beef and milk from these regions are not recommended for consumption especially by children although more studies remain to be conducted. Conclusion. Heavy metals in milk and beef of Uganda may predispose the indigenous community to cancer and other health-related illnesses, showing a need for improved food safety screening to promote food safety.