Browsing by Author "Jaji-Sulaimon R."

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    Cytoarchitectural differences in reproductive organs of some polycystic ovary-like induced animal models
    (Elsevier Limited, 2024) Kadir E.R.; Yakub A.D.; Ojulari L.S.; Hussein A.O.; Lawal I.A.; Jaji-Sulaimon R.; Ajao M.S.
    Polycystic ovary syndrome (PCOS) is the most common gynaecological, endocrine disorder that occurs during reproductive age and is a significant cause of anovulatory infertility. Letrozole is an aromatase inhibitor which negates the action of the aromatase enzyme, which results in the buildup of male hormones (testosterone) in the females, causing hyperandrogenism, which is a hallmark of Polycystic Ovarian Syndrome. Mifepristone (RU486) is a progestin antagonist that acts to arrest the actions of the progesterone hormone, resulting in follicular atresia and anovulation. DHEA is an androgen which was also administered in a bid to cause hyperandrogenism in the rats.This study aimed to evaluate the effects of these hormones on the cytoarchitecture of the ovaries and uterus to assess their various PCOS-like histological features.Animals were grouped mainly into three: Letrozole, Mifepristone and DHEA groups, which were further divided into two subgroups each, administered low and high doses of letrozole orally, Mifepristone and Dehydroepiandosterone (DHEA) subcutaneously. Each of the subgroups also had a comparison control group. Following the completion of administration, the Wistar rats were euthanized, and their ovaries and uterus were collected for histological analysis.Increased proliferation of ovarian follicles was noted in the treated groups compared to control, as well as thickening of the endometrial layer.
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    Moringa oleifera attenuates biochemical and histological changes associated with the pancreas in nicotine-treated rats
    (Research Journal of Health Sciences, 2018) Omotoso G.O.; Adunmo G.O.; Ojulari L.S.; Olawuyi T.S.; Lewu F.S. ,; Jaji-Sulaimon R.; Sulaimon F.A.; Gbadamosi I.T. ,; Onoja O.P.
    Objective: The study was undertaken in order to evaluate the beneficial potential of Moringa oleifera, in nicotine-induced pancreatic injury. Method: Forty-five adult female albino rats were divided into 5 groups A-E, each group having nine rats. Group A received normal saline; group B received 6.88 mg/kg of nicotine intraperitoneally (i.p); group C received 6.88 mg/kg of nicotine i.p. and 200 mg/kg of Moringa oleifera leaf powder dissolved in 2 ml of normal saline (orally); group D received 13.76 mg/kg of nicotine i.p., while group E received 13.76 mg/kg of nicotine i.p. and 200 mg/kg of Moringa oleifera leaf powder dissolved in 2 ml of normal saline (orally). Treatment was for 8 days and the rats were sacrificed after 24 hours of termination of study. Intracardial blood specimens were obtained to analyse blood glucose, while the pancreas was excised and either fixed in 4% paraformaldehyde for histology or sucrose solution and homogenised for biochemical analysis of lactate dehydrogenase (LDH) and glucose-6-phosphate dehydrogenase (G-6-PDH) enzymes. Results: In comparison with the Control, animals treated with low dose of nicotine with or without Moringa oleifera and those treated with high dose of nicotine plus Moringa oleifera had reduction in body weights (p>0.05), while marked reduction in pancreatic weights was noted in low dose nicotine (p<0.05) and both nicotine groups co-treated with Moringa oleifera (p<0.05). There were no significant changes in the levels of blood glucose and pancreatic G-6-PDH levels, while significant reduction occurred in pancreatic LDH levels in nicotine-treated rats (p<0.05). However, LDH improved following co administration with Moringa oleifera. Observation of the histology of the pancreas revealed atrophy of intercalated ducts, poorly delineated and disintegrating islet of Langerhans in animals treated with the higher dose of nicotine, while changes in pancreatic tissue in animals co-treated with Moringa oleifera were not as severe as the nicotine-treated animals. Conclusion: Moringa oleifera leaf decoction minimally ameliorates morphological and biochemical changes associated with nicotine-induced pancreatic damage. Keywords: Nicotine, Pancreatic damage, Moringa oleifera
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    Moringa Oleifera is protective against microarchitectural and neurochemical changes associated with cuprizone-induced pre-frontal cortex neurotoxicity in female Wistar rats
    (Neuroscience Society of Nigeria, 2018) Omotoso G.O.; Gbadamosi I.T.; Akinlolu A.A.; Ameen M.O.; 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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    Prenatal exposure to gestational nicotine before neurulation is detrimental to neurodevelopment of Wistar rats’ offspring
    (Universiti Sains Malaysia, Kelantan, 2018) Omotoso G.O.; Kadir R.E.; Sulaimon F.A.; Jaji-Sulaimon R.; Gbadamosi I.T.
    Background and aim: This study aimed to determine the effect of gestational nicotine exposure before neurodevelopment on the morphology and histology of the prefrontal cortex (PFC) in rats. Methodology: Adult female Wistar rats were time-mated and grouped into three categories: (a) control–given 0.1 mL of normal saline, (b) low-dose nicotine–given 6.88 mg/ kg/d/0.05 mL, and (c) high-dose nicotine–given 13.76 mg/kg/d/0.1 mL in two divided doses. Treatment was given intraperitoneally from gestational days 2 to 6. On postnatal day 15 (P15), the pups were separated from their mothers, anaesthetised and sacrificed, followed by intracardial perfusion with 4% paraformaldehyde. PFC was excised from the brain and processed for tissue histology, histochemistry, and morphology of brain cells. Results: Gestational nicotine exposure during the first week of gestation in rats significantly reduced birth weights in nicotine-treated groups compared with control; it, however, accelerated body weights, altered neuronal morphology, and elevated astrocytic count significantly, while oligodendroglial count was slightly increased in the PFC of juvenile rats examined at P15. Conclusion: These alterations revealed that gestational nicotine exposure before the commencement of the cellular processes involved in brain development negatively affects neurodevelopment, and this could result in neurological dysfunctions in later life.
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    Testicular Morphology and Seminal fluid parameters of adult Wistar rats following honey administration
    (Faculty of Pharmacy, University of Benin, 2018) Kadir R.E.; Ojulari L.S.; Ibrahim A.; Ekundayo O.J.; Jaji-Sulaimon R.; Jimoh-Abdulghaffar H.O.
    Purpose: Honey has a long history of use in the traditional medical systems This objective of this study was to find out the effects of honey on quality and quantity of sperm and testicular microstructure when compared to fertility boosting drug and controls. Methods: A total number of thirty (30) matured male Wistar rats that were sexually active weighing 200 - 280g were used for this study. The animals were grouped into five as A - E. Group A was the control; Group B (standard group) was the standard group that received 0.3ml of follicle stimulating hormone (FSH) drug for 6 days; groups C, D and E received 1ml, 2ml, and 2.5ml of honey daily for 21days respectively. After 21 days of administration, the testes were removed for analysis of the sperm parameters and the histology. Results: Honey significantly improved the sperm quality and spermatogenesis rate (denser seminiferous tubule lumen) of exposed animals compared to control animals, but most improvement was seen in the standard group that received 0.3ml FSH. Also no sign of degeneration or cellular loss was observable in the testicular histo-architecture of experimental animals. Conclusion: This research showed that honey possesses some fertility boosting properties in exposed animals compared to controls and honey is not associated with increased sperm abnormalities.