Browsing by Author "Ukwenya, Victor O."

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    Acute administration of co-artesiane induces oxidative stress in the testes of adult male Wistar rats
    (Bioscience Research Communications, 2010) Tijani, Abiola S.; Ukwenya, Victor O.; Sodunke, Grace A.; Fakunle, Julius B.
    Co-artesiane is an artemether-lumefantrine combination therapy that is used in the treatment of malaria. In this work we studied the toxicological effect of this drug with reference to seminal and biochemical parameters of the male reproductive system of wistar rats. Twenty (20) adult male rats were divided into four groups of five rats per group. Group A was administered a single dose (4 mg/kg/bw) of Co-artesiane, Group B was administered double dose (8 mg/kg/bw) of Co-artesiane and Group C received 10 mg/kg/bw of the drug for a period of 3 days. Group D served as control and received physiologic saline. In each group body weight, testicular weight, sperm count, motility and viability as well as oxidative stress status were assessed by evaluating the activities of reduced glutathione, Glutathione S-transferase, catalase, super oxide dismutase (SOD) and malondialdehyde (MDA). The mean sperm count, motility and viability in rats treated with Co-artesiane were reduced when compared with controls. Biochemical analyses showed increase in the activities of oxidative stress markers in a dose-dependent manner. The results suggest that the graded dose of Co-artesiane® elicit depletion of antioxidant defense system and induced oxidative stress in the rats.
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    Pesticides-induced Cardiovascular Dysfunctions: Prevalence and Associated Mechanisms
    (Bentham Science Publisher : Current Hypertension Reviews, 2021) Adeyemi, Joseph A.; Ukwenya, Victor O.; Arowolo, O.K.; Olise, Christian C.
    Increased applications of pesticides, mainly in agriculture and public health, have resulted in increased chances of human exposure to pesticides. Chronic exposure to pesticides has been implicated in several human diseases, including cardiovascular diseases. Cardiovascular diseases are broadly used for various heart pathological conditions, including a defect in blood vessels, and they include myocardial infarction, atherosclerosis, stroke, cardiomyopathy, coronary heart disease, etc. In this review, the association between human exposure to pesticides and the development of cardiovascular diseases was discussed using epidemiological and laboratory data. The toxicokinetics of pesticides in humans was reviewed, as well as the risk factors for cardiovascular diseases. The important role of oxidative stress principally the induction of reactive oxygen species as the signaling molecules for various signaling pathways involved in pesticides-induced cardiovascular disease, was discussed.