Browsing by Author "Omotoso, G. O."

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    Altered testicular histomorphometric and antioxidant levels following in vivo bisphenol-a administration
    (Arak University of Medical Sciences, 2021) Kadir, R. E.; Ojulari, S. L.; Gegele, A. T.; Lawal, A. I.; Sulu-Gambari, L.; Sulaimon, F. A.; Omotoso, G. O.
    Background: Bisphenol-A (BPA) is a pervasive environmental toxin that is used in the production processes of many consumables and equipment that are in daily application. The aim of this study was to determine the effects of BPA on the structural and functional integrity of the reproductive system in male Wistar rats and its interaction with melatonin. Methods: Adult female rats in pro-estrus phases were mated with adult male rats and the conception determined. The male pups were divided into two groups of A and B. These groups were further subdivided into six subgroups each. They were administered varying low doses of BPA (25 or 50mg/kg) and melatonin (10mg/kg) at neonatal and adolescent ages. The testes, epididymis and blood samples were collected for histological, semen and biochemical investigations, respectively. Results: The results show that BPA caused histological alterations, reduced quality and quantity of sperm cells, and induced oxidative stress at birth and adolescence. Conclusion:Bisphenol A exposure, even at low dose, is toxic to the male reproductive system, and melatonin administration did not significantly improve the alterations caused by the BPA.
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    Evaluation of sexual hormones of male rats treated with garlic aqueous extract and high fatty diet
    (Department of anatomy, faculty of basic medical sciences, 2011) Omotoso, G. O.; Jimoh, A.A.G.; Olawuyi, T.S.; Olorunfemi, O.J.
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    Honey and levodopa comparably preserved substantia nigra pars compacta neurons through the modulation of nuclear factor erythroid 2-related factor 2 signaling pathway in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson's disease model
    (Korean Association of Anatomists, 2024) Sulaimon, F. A.; Ibiyeye, R. Y.; Imam, A.; Oyewole, A. L.; Imam, A. L.; Shehu, M.; Biliaminu, S. A.; Kadir, R. E.; Omotoso, G. O.; Ajao, M. S.
    : Parkinson’s disease (PD) affects about 8.5 million individuals worldwide. Oxidative and inflammatory cascades are implicated in the neurological sequels, that are mostly unresolved in PD treatments. However, proper nutrition offers one of the most effective and least costly ways to decrease the burden of many diseases and their associated risk factors. Moreover, prevention may be the best response to the progressive nature of PD, thus, the therapeutic novelty of honey and levodopa may be prospective. This study aimed to investigate the neuroprotective role of honey and levodopa against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced oxidative stress. Fifty-four adult male Swiss mice were divided into control and PD model groups of 27 mice. Each third of the control mice either received phosphate buffered saline, honey, or levodopa for 21 days. However, each third of the PD models was either pretreated with honey and levodopa or not pretreated. Behavioral studies and euthanasia were conducted 2 and 8 days after MPTP administration respectively. The result showed that there were significantly (P<0.05) higher motor activities in the PD models pretreated with the honey as well as levodopa. furthermore, the pretreatments protected the midbrain against the chromatolysis and astrogliosis induced by MPTP. The expression of antioxidant markers (glutathione [GSH] and nuclear factor erythroid 2-related factor 2 [Nrf2]) was also significantly upregulated in the pretreated PD models. It is thus concluded that honey and levodopa comparably protected the substantia nigra pars compacta neurons against oxidative stress by modulating the Nrf2 signaling molecule thereby increasing GSH level to prevent MPTP-induced oxidative stress.
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    Kolaviron protects the brain in cuprizone-induced model of experimental multiple sclerosis via enhancement of intrinsic antioxidant mechanisms: Possible therapeutic applications?
    (Published by the International Society for Pathophysiology., 2018) Omotoso, G. O.; Ukwubile, I. I.; Arietarhire, L.; Sulaimon, F.,; Gbadamosi, I. T
    Multiple sclerosis is a demyelinating condition of the central nervous system which commonly affects young adults. Kolaviron, a biflavonoid isolate of Garcinia kola, has been used in experimental studies which explored its anti-oxidative, anti-inflammatory and anti-genotoxic properties. This work was aimed at unraveling the possible ameliorative effect of kolaviron on cuprizone-induced demyelination in the prefrontal cortices of Wistar rats. A total of 28 adult male Wistar rats were divided into four groups A–D. Group A received corn oil (Control), group B received 0.2% Cuprizone, group C received kolaviron (200 mg/kg bw), while group D rats were treated concomitantly with both kolaviron and cuprizone. All groups were treatedfor 42days, after whichbehavioral,histological,immunohistochemical andbiochem ical analyses were carried out on the prefrontal cortices. Cuprizone significantly down-regulated the level of superoxide dismutase, exacerbated lipid peroxidation and, reduced spatial memory. Cuprizone also induced peripheral and central chromatolysis alongside with atrophied astrocytes in the prefrontal cor tex. These alterations were significantly prevented in kolaviron-treated rats, as kolaviron sustained the integrity of neuronal and non-neuronal cells. The activity of kolaviron observed in this study was due to its intrinsic antioxidant properties, which enabled it to combat oxidative damage induced by cuprizone, thereby making kolaviron a potential tool in neurodegeneration therapy of demyelination origin.
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    Moringa oleifera Ameliorates Cuprizone-Induced Cerebellar Damage in Adult Female Rats
    (https://www.ajol.info/index.php/rejhs/issue/view/16912, 2018) Omotoso, G. O.; Kadir, R. E.; Lewu, S. F.; Gbadamosi, I, T.; Akinlolu, A. A.; Adunmo, G. O.; Kola, R. M.; Lawal, M. O.; Ameen, M. O.
    Objectives: Cuprizone is a neurotoxicant used in modeling demyelinating disorders. This study explored the effects of Moringa oleifera (MO) on oxidative, histomorphological and behavioural changes in cuprizone-damaged cerebellum. Methods: Twenty adult female Wistar rats were grouped into 4, each group having five animals. Group A received 1 ml of normal saline (Control); group B received 0.4% cuprizone; group C received 15.6 mg/kgBW Moringa oleifera leaf extract; group D received 0.4% cuprizone and 15.6 mg/kgBW Moringa oleifera, orally for 5 weeks. The animals were assessed for exploratory and locomotor activities, while the cerebellum was processed for histology and assayed for nitric oxide (NO), catalase (CAT) and superoxide dismutase (SOD) activities. Results: Cuprizone treatment caused weight reduction, disruption of Purkinje cell layer, cellular degeneration, reduction in NO, CAT and SOD activities. However, these changes were ameliorated when co-administered with MO. Conclusion: The anti-oxidative property of Moringa oleifera is responsible for its ameliorative effect in cuprizone neurotoxicity.
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    Moringa oleifera Impairs the Morphology and Functions of the Kidney in Adult Wistar Rats
    (Anatomical Society of Chile, 2014-09-10) Akinlolu, A. A.; Ghazali, O. K.; Ameen, Mubarak; Oyebanji, S. C.; Omotoso, G. O.; Enaibe, B. U.
    We tested the hypothesis that Moringa oleifera impairs the morphology and functions of the kidney in rats. Twenty four adult male Wistar rats were employed in the study. Rats of Control Group I received physiological saline while rats of Groups II – IV received 250, 500 and 750 mg/kg body weight of methanolic extract of Moringa oleifera respectively for twenty one days. No behavioral anomalies were observed in rats of Groups I – IV. Rats of Control Group I gained statistically significant increased body weight while rats of Groups II – IV experienced non-significant decreased body weight during experimental procedure. (P£0.05). No statistical significant differences (P£0.05) were observed in the analyses of the relative weights of kidneys of rats of Groups I – IV. Histological examinations showed normal cyto-architecture of the kidneys of rats of Group I while the Capsular spaces of the kidneys of rats of Groups II – IV appeared wider than those of Group I. Statistical analyses showed significant higher levels (P£0.05) of Alanine and Aspartate Transaminases, and serum urea in rats of Groups II – IV in a non- dose-dependent manner when compared to rats of Group I. Our findings are consistent with the stated hypothesis.
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    Moringa oleifera IS PROTECTIVE AGAINST MICROARCHITECTURAL AND NEUROCHEMICAL CHANGES ASSOCIATED WITH CUPRIZONEINDUCED PREFRONTAL CORTEX NEUROTOXICITY IN FEMALE WISTAR RATS
    (Neuroscience Society of Nigeria (NSN), 2018-05-20) Omotoso, G. O.; Gbadamosi, I. T.; Akinlolu, A, A.; Ameen, Mubarak; Kadir, R. E.; Jaji-Sulaimon, R.; Abdulwahab, A. B.; Kolo, R. M.
    Cuprizone administration causes selective damage to axonal myelin sheath and has been used to model demyelinating diseases in neuroscience research. This study aimed at determining the protective effects of Moringa oleifera on cuprizone-induced neurotoxicity in the prefrontal cortex (PFC). Sixteen adult female Wistar rats were procured and grouped into 4: Group A was given normal saline, Group B received 0.4% cuprizone diet, Group C was administered with 1.875 mg/ml of Moringa oleifera and Group D received a combination of 0.4% cuprizone diet and 1.875 mg/ml of Moringa oleifera. All the groups were treated orally for 35 consecutive days after which they were sacrificed. Thereafter the PFC was processed for histological demonstration, while tissue homogenate was used to assay the activity of superoxide dismutase (SOD). Cuprizone administration caused significant reduction in body weight and SOD activities. It also caused an alteration in the microarchitecture and Nissl profile of the PFC. Moringa oleifera intervention led to restoration of body weight, SOD levels, Nissl profile and the histology of the PFC. The use of preparations of Moringa oleifera, especially the leaf-component, could offer some protective measures to individuals suffering from demyelinating conditions, especially in addressing the associated weight changes and frontocortical dysfunction.
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    Research Journal of Health Sciences
    (2018-02-01) Omotoso, G. O.; Kadir, R. E.; Gbadamosi, I. T.; Akinlolu, A. A.; Adunmo, G. O.; Kolo, R. M.; Lawal, M. O.; Ameen, M. O.
    Objectives: Cuprizone is a neurotoxicant used in modeling demyelinating disorders. This study explored the effects of Moringa oleifera (MO) on oxidative, histomorphological and behavioural changes in cuprizone-damaged cerebellum. Methods: Twenty adult female Wistar rats were grouped into 4, each group having five animals. Group A received 1 ml of normal saline (Control); group B received 0.4% cuprizone; group C received 15.6 mg/kgBW Moringa oleifera leaf extract; group D received 0.4% cuprizone and 15.6 mg/kgBW Moringa oleifera, orally for 5 weeks. The animals were assessed for exploratory and locomotor activities, while the cerebellum was processed for histology and assayed for nitric oxide (NO), catalase (CAT) and superoxide dismutase (SOD) activities. Results: Cuprizone treatment caused weight reduction, disruption of Purkinje cell layer, cellular degeneration, reduction in NO, CAT and SOD activities. However, these changes were ameliorated when co-administered with MO. Conclusion: The anti-oxidative property of Moringa oleifera is responsible for its ameliorative effect in cuprizone neurotoxicity.