Browsing by Author "Olatunji, L.A"

Now showing 1 - 5 of 5
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    Anti-plasmodial activity of sodium acetate in Plasmodium berghei-infected mice
    (DE GRUYTER, 2018-04-10) Abdulkareem, A.O; Babamale, O.A; Owolusi, L.O; Busari, S.A; Olatunji, L.A
    Background: Continuous increase in drug resistance has hindered the control of malaria infection and resulted in multi-drug-resistant parasite strains. This, therefore, intensifies the search for alternative treatments with no or less side effects. Several histone deacetylase inhibitors have been characterised to possess anti-malaria activity; however, their further development as anti-malaria agents has not recorded much success. The present study investigated the anti-plasmodial activity of sodium acetate in Plasmodium berghei-infected mice, aiming at finding a better alternative source of malaria chemotherapy. Methods: Thirty female Swiss albino mice were randomly distributed into six groups. Groups A (uninfected control) and B (infected control) received only distilled water. Group C (artesunate control) were infected and treated orally with 4 mg/kg artesunate on the first day, and subsequently 2 mg/kg artesunate. Groups D, E and F were infected and orally treated with 50, 100 and 200 mg/kg sodium acetate, respectively. Results: Sodium acetate significantly lowered parasitaemia (p < 0.05) after 4 days post-treatment, and the parasite inhibition rate of 68.5% at 50 mg/kg compared favourably with the 73.3% rate of artesunate. Similarly, administration of 50 mg/kg sodium acetate improved serum total cholesterol relatively better than artesunate. Our results also revealed that sodium acetate does not interfere with liver function, as there was no significant difference (p > 0.05) in the serum activities of aspartate aminotransferase and alanine aminotransferase in both infected treated and uninfected mice. Conclusions: This study shows that sodium acetate may be a safe alternative source of anti-malaria drugs. Its effect on the serum total cholesterol also predicts its ability in correcting malaria-induced metabolic syndromes.
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    COMBINED ORAL CONTRACEPTIVE (ETHINYLESTRADIOL/ LEVONORGESTREL) ALLEVIATES LIPID AND LACTATE ALTERATIONS IN PLASMODIUM BERGHEI-INFECTED MICE
    (Assiut University, Egypt, 2022-04-08) Abdulkareem, A.O; Babamale, O.A; Abe, E.O; Olatunji, L.A; Ugbomoiko, U.S
    Despite the common use of combined oral contraceptive (COC) as a childbirth control pill, there is no sufficient information on the effect of COC in malaria. Hence, we aimed at investigating the effect of COC on parasite growth and the associated risk of metabolic disorder in Plasmodium berghei-infected mice. Twenty female mice were randomly allotted into four groups (n= 5/group): uninfected, infected (inoculated with P. berghei), COC (1.0 μg ethinylestradiol and 5.0 μg levonorgestrel, p.o/day, without infection) and infected + COC. Percentage parasitaemia was recorded weekly. At the end of 21-day exposure, the mice were sacrificed, while blood and liver were collected for biochemical analyses. Our data showed progressive increase in parasitaemia in P. berghei-infected mice. Our findings also revealed that P. berghei infection did not affect serum levels of high-density lipoprotein cholesterol, low density lipoprotein cholesterol and total cholesterol (TC). It, however, elevated serum malondialdehyde (MDA), serum and liver triglycerides and liver TC. Elevations of serum and liver free fatty acid and lactate were also observed in P. berghei-infected mice. However, COC treatment lowered MDA level and attenuated lipid and lactate alterations in P. berghei infection. This study, therefore, suggests that COC possesses anti-plasmodial potential to mitigate malaria-associated metabolic disturbances. Further animal and human studies are necessary to validate our findings.
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    Effect of sodium acetate on serum activity of glucose-6-phosphate dehydrogenase in Plasmodium berghei-infected mice
    (Springer, 2020-10-11) Abdulkareem, A.O; Babamale, O.A; Aishat, L.A; Ajayi, O.C; Gloria, S.K; Olatunji, L.A; Ugbomoiko, U.S
    Malaria is a global health problem with severe morbidity and mortality in Sub-Saharan Africa. Resistance of Plasmodium spp to the current anti-malaria drugs necessitates further search for novel effective drugs. This study, therefore, investigated the effect of sodium acetate on glucose-6-phosphate dehydrogenase in Plasmodium berghei-infected mice. Thirty male Albino mice were randomly distributed into 6 groups, A–F. Animals in Groups B–F were inoculated with P. berghei, intraperi toneally. Subsequently, Group C mice were treated with 20 mg/kg chloroquine, while groups D, E and F received 25, 50 and 100 mg/kg sodium acetate, respectively. All treat ments were administered orally for 4 days. At the end of the experiment, animals were sacrificed by cervical dislo cation and blood was collected via cardiac puncture for the analyses of serum glucose-6-phosphate dehydroge nase (G6PD), uric acid and lipid profile. Our results sho wed that Sodium acetate (50 and 100 mg/kg) significantly reduced (p\ 0.05) parasitaemia (67.11% and 77.62%, respectively) than chloroquine (61.73%). Besides, body weight and serum G6PD activity in P. berghei infection were improved. Similarly, sodium acetate reduced elevated serum uric acid. Effects of sodium acetate and chloroquine on biochemical parameters were comparable (p [0.05) but atherogenic lipid ratios were not affected by sodium acetate. These data put together suggested that activity of sodium acetate may be harnessed for development of novel anti-malaria drugs. However, more studies are required to delineate its mechanisms of action.
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    Effect of untreated pharmaceutical plant effluent on cardiac Na+-K+- ATPase and Ca2+-Mg2+-ATPase activities in mice (Mus Musculus)
    (Elsevier, 2019-05-06) Abdulkareem, A.O; Olafimihan, T.F; Akinbobola, O.O; Busari, S.A; Olatunji, L.A
    Cardiovascular diseases are major causes of non-communicable diseases (NCDs)-related throughout the world. Water pollution has been linked with the high global NCD burden but no report exists on the cardiotoxicity of untreated or poorly treated pharmaceutical effluent, despite its indiscriminate discharge into the aquatic environment in Nigeria, as in many other locations of the world. Thus, this study investigated the cardiotoxic effect of oral exposure to pharmaceutical effluent in mice. Thirty (30) male mice (Mus musculus) were randomly divided into 6 groups. Group A (control) received 0.2 ml distilled water, while groups B-F were treated with 0.2 ml 2.5%, 5.0%, 10.0%, 20.0% and 40% concentrations (v/v, effluent/distilled water) of the effluent respectively, for 28 days. Significant reductions (p < 0.05) in heart weight and cardiac weight index were observed in the groups treated with 5%, 10%, 20% and 40% concentrations of the effluent, without significant change in body weight. Similarly, 28 day administration of the effluent showed significant decrease in cardiac Na+-K+-ATPase activity (p < 0.05) at concentrations 10% and above, in a concentration dependent manner. However, there was insignificant decrease in cardiac Ca2+-Mg2+-ATPase activity of the exposed mice, when compared with the control group. This study provides novel information on the cardiotoxic effects of oral exposure to untreated pharmaceutical effluent, showing reduced Na+-K+-ATPase activity and decreseased myocardial atrophy. Therefore, drinking water contaminated with pharmaceutical effluent may promote the incidence of cardiovascular diseases. Further studies on the exact mechanistic routes of the induced cardiotoxicity are recommended.
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    Leaf extract of Morinda lucida improves pancreatic beta-cell function in alloxan-induced diabetic rats
    (Taylor & Francis, 2019-09-16) Abdulkareem, A.O; Igunnu, A; Ala, A.A; Olatunji, L.A
    Chemotherapy remains the utmost treatment for Type 1 diabetes (T1D) patients. This however, predisposes the patients to a wide range of serious complications, thus, the need for alternative therapeutic agents that target pancreatic β-cell function. This study investigated the effects of aqueous leaf extract of M. lucida (MLE) on β-cell dysfunction and atherogenic dyslipidaemia in alloxan-induced T1D in rats. Twenty-five Wister rats (156- 168g) were randomly divided into normal, diabetic, diabetic + glibenclamide (5 mg/kg), diabetic + 120 mg/kg MLE and diabetic + 240 mg/kg MLE groups (n = 5/ group). Treatments were via oral route for 14 days. Our findings revealed that, 120 mg/kg MLE significantly reduced hyperglycaemia, improved insulinaemia as well as β-cell function, and attenuated weight loss in alloxan-induced diabetic rats. The extract also attenuated (p < 0.05) atherogenic dyslipidaemia and malondialdehyde. The activities of the extract compared favourably with glibenclamide. This study suggested that, hypoglycaemic and mitigating effects of aqueous leaf extract of M. lucida on atherogenic dyslipidaemia and pancreatic β-cell dysfunction were through reduction in lipid peroxidation. The extract may therefore represent an effective source of novel drugs against TID and cardiovascular diseases. Further study is recommended, to explore the extract’s mechanism of oxidative repair