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Antidiarrheal activity of hexane extract of Citrus limon peel in an experimental animal model

Journal of Integrative Medicine 2017年第2期15卷 158-164页

作者： olasupo stephen adeniyi James Omale Samuel Chukwuma Omeje Victoria Ojimaojo Edino Department of Human Physiology Faculty of Basic Medical Sciences Kogi State University Anyigba 272102 Nigeria Department of Biochemistry Faculty of Natural Sciences Kogi State University Anyigba 272102 Nigeria

OBJECTIVE： Acute diarrhea is one of the major illnesses that cause death in children, despite clinical interventions and the use of oral rehydration therapy. Thus, there is need to discover other effective, affordable and accessible treatments for this disease. Therefore, this study was carried out to investigate the effects of hexane extract of Citrus limon peel （HECLP） on castor oil-induced diarrhea in rats. METHODS： Diarrhea was induced in male albino Wistar rats weighing 100-150 g. The antidiarrheal activity of HECLP at different oral dosages （5, 10 and 20 mg/kg） was investigated by counting the number of wet fecal pellets. Animals were further treated with propranolol, prazosin, nifedipine and atropine to assess the effects of receptor blockers on the activities of the extract. The effects of HECLP on castor oil-induced enteropooling and the intestinal transit time of activated charcoal were also evaluated. RESULTS： Each of the 3 doses of C. limon significantly reduced （P 〈 0.05） the number of wet fecal pellets produced by animals, with 20 mg/kg HECLP producing the highest percentage inhibition （34.2%） Wet fecal pellet inhibition by the standard drug Ioperamide （3 mg/kg p.o.） was 68.4% relative to the negative control. Blockage of 13 adrenergic receptors by propanolol abolished the antidiarrheal effects of HECLP. Intestinal fluid accumulation was inhibited by 68.7% and 78.5% by 20 mg/kg HECLP and Ioperamide respectively. Furthermore, 20 mg/kg HECLP significantly （P 〈 0.05） reduced the percentage intestinal transit time （21.4% ± 1.42%）, relative to the control （34.2% ±4.29%）; atropine （5 mg/kg, intraperitoneal injection） significantly （P 〈 0.001） reduced the percentage intestinal transit time to 11.2% ±0.85%. CONCLUSION： These results suggest that C. limon peel possesses antidiarrheal effects through antisecretory and antimotility mechanisms that act through the β adrenergic system.

关键词： antimotility antisecretory diarrhea lemon peel

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High Fat Diet Alteration of Gut Microbiota Impacts Learning, Memory and Anxiety Response in Mice: Cannabidiol and Omega 3 Possible Remedies

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Advances in Alzheimer's Disease 2022年第1期11卷 1-9页

作者： Innocent Abi Moses Ashiekaa Eugenia Abi olasupo stephen adeniyi Linus Chia Saalu Department of Physiology College of Health Sciences Benue State University Makurdi Nigeria Department of Biochemistry Faculty of Science University of Agriculture Makurdi Nigeria Department of Human Anatomy College of Health Sciences Benue State University Makurdi Nigeria

Chronic intake of High Fat Diet (HFD) has the potential of causing a number of metabolic disorders. It is also theorized to be involved in perturbation of gut microbiota. Cannabididol (CBD) and omega 3 are known to possess a number of medicinal usefulness. Their combined use in experimental interventions is quite limited. A total of 15 mice were used for this research divided into three groups of five animals each. Group 1 was administered water and normal chow ad libidum. Group 2 had HFD and water ad libidum. Group 3 had HFD plus CBD (10 mg/kg) and omega 3 (200 mg/kg) all for a total of 12 weeks. They were tested on the elevated plus maze (EPM) and average entry time into the closed arm was recorded. They were also tested on the Y-maze and spontaneous alternations were measured. Thereafter animals were sacrificed and faecal content in the caecum was collected in sterile bottles and cultured for E. coli count. It was found that HFD group at p value E. coli count (2.4 × 106 ± 4.5) compared to group 1 (1.4 × 106 ± 5.6) and group 3 (1.42 × 106 ± 6.3). The findings revealed that HFD enhanced gut E. coli overgrowth which was reduced by CBD and Omega 3. The memory impairment and anxiety induction by HFD was also significantly ameliorated by CBD and omega 3. E. coli known to be implicated in dementia induction was suppressed by the interventions. Possible mechanisms proposed are actions of CBD and omega 3 on CB1, TRVP and 5HT receptors in reducing anxiety and their antioxidant/anti-inflammatory actions in mitigating the neuro-inflammatory effect of HFD and immune hyperstimulation of E. coli via the gutbrain-axis.

关键词： HFD Learning Memory CBD Omega 3 Anxiety EPM

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Omega 3 Fatty Acid and Cannabidiol Prolong Lifespan and Ameliorates Brain Ischaemia in Mice Fed Chronic High Fat Diet

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Journal of Behavioral and Brain Science 2022年第7期12卷 335-341页

作者： Innocent Abi Aver Maria Yongu Ugbudu George Tersoo olasupo stephen adeniyi Linus Chia Saalu Department of Physiology College of Health Sciences Benue State University Makurdi Nigeria Department of Anatomy College of Health Sciences Benue State University Makurdi Nigeria

Diets these days contain more fats. High fat diet (HFD) is a model of unhealthy eating in experimental animals. It is known to induce inflammatory responses and oxidative stress. Cannabidiol (CBD), the non-psychoactive component of Cannbis sativa has been legalized for medicinal use in many countries of the world. Omega 3 fatty acid, commonly found in fish oil is medicinal and necessary for brain development. The antioxidant and neuroprotective functions of CBD and omega 3 have made them relevant in many researches. In this study, 45 mice were used and divided into three groups of 15 animals each: Group 1 (normal feed and water ad libidum);Group 2 (HFD ad libidum);Group 3 (HFD + CBD + Omega 3) for 16 weeks. Thereafter, five animals from each group were selected and their frontal lobes were harvested for histological analyses using H and E staining. The remaining mice were allowed to feed on normal diet and observed till death. At the end, HFD significantly reduced life span (57.4 ± 0.3) when compared to control (78.9 ± 1.6) and HFD + CBD + omega 3 group (74.5 ± 0.8) at p < 0.05. HFD also caused significant brain ischemic damage, neuronophagia and significant perivascular oedema. CBD + Omega 3 induced significant astrocytosis compared to control and HFD group. The immune stimulation by the CBD + Omega 3 could be responsible for tissue survival and longevity by protection from inflammatory and oxidative injuries. Ischaemic tissue death could have been prevented by amelioration of artheroma formation due to HFD. Further studies will be required to ascertain other possible mechanisms behind these findings.

关键词： Omega 3 CBD HFD Lifespan Astrocytosis

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Neuropeptide cholecystokinin:a key neuromodulator for hippocampal functions

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Neural Regeneration Research 2025年第7期20卷 1991-1992页

作者： Fengwen Huang stephen Temitayo Bello Department of Neuroscience City University of Hong KongKowloon TongHong Kong Special Administrative RegionChina Center for Regenerative Medicine and Health Hong Kong Institute of Science&InnovationChinese Academy of SciencesHong Kong Special Administrative RegionChina

Spatial memory is crucial for survival within external surroundings and wild *** hippocampus,a critical hub for spatial learning and memory formation,has received extensive investigations on how neuromodulators shape its functions(Teixeira et al.,2018;Zhang et al.,2024).However,the landscape of neuromodulations in the hippocampal system remains poorly understood because most studies focus on classical monoamine neuromodulators,such as acetylcholine,serotonin,dopamine,and *** neuropeptides,comprising the most abundant neuromodulators in the central nervous system,play a pivotal role in neural information processing in the hippocampal ***(CCK),one of the most abundant neuropeptides,has been implicated in regulating various physiological and neurobiological statuses(Chen et al.,2019).CCK-A receptor(CCK-AR)and CCK-B receptors(CCK-BR)are two key receptors mediating the biological functions of CCK,both of which belong to class-A sevenfold transmembrane G protein-coupled receptors(Nishimura et al.,2015).CCK-AR preferentially reacts to sulfated CCK,whereas CCK-BR binds both CCK and gastrin with similar affinities(Ding et al.,2022).The expression patterns of CCK-AR and CCK-BR are distinct,implying that CCK has various functions in target *** instance,CCK-AR is widely expressed in the GI and brain subregions and is hence implicated in the control of digestive function and satiety ***,CCK-BR is abundantly and widely distributed in the central nervous system,which majorly regulates anxiety,learning,and memory(Ding et al.,2022).However,the roles of endogenous CCK and CCK receptors in regulating hippocampal function at electrophysiological and behavioral levels have received less attention.

关键词： abundant functions modulator

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In vitro inhibition activity of polyphenol-rich extracts from Syzygium aromaticum(L.)Merr.& Perry(Clove)buds against carbohydrate hydrolyzing enzymes linked to type 2 diabetes and Fe^(2+)-induced lipid peroxidation in rat pancreas

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Asian Pacific Journal of Tropical Biomedicine 2012年第10期2卷 774-781页

作者： stephen adeniyi Adefegha Ganiyu Oboh Department of Biochemistry Federal University of TechnologyAkure

To investigate and compare the inhibitory properties of free and bound phenolic extracts of clove bud against carbohydrate hydrolyzing enzymes (alpha-amylase & alpha-glucosidase) and Fe2+-induced lipid peroxidation in rat pancreas in vitro. Methods: The free phenolics were extracted with 80% (v/v) acetone, while bound phenolics were extracted from the alkaline and acid hydrolyzed residue with ethyl acetate. Then, the interaction of the extracts with alpha-amylase and alpha-glucosidase was subsequently assessed. Thereafter, the total phenolic contents and antioxidant activities of the extracts were determined. Results: The result revealed that both extracts inhibited alpha-amylase and alpha-glucosidase in a dose-dependent manner. However, the alpha-glucosidase inhibitory activity of the extracts were significantly (P<0.05) higher than their alpha-amylase inhibitory activity. The free phenolics (31.67 mg/g) and flavonoid (17.28 mg/g) contents were significantly (P<0.05) higher than bound phenolic (23.52 mg/g) and flavonoid (13.70 mg/g) contents. Both extracts also exhibited high antioxidant activities as typified by their high reducing power, 1,1 diphenyl-2- picrylhydrazyl (DPPH) and 2, 2-azinobis-3-ethylbenzo-thiazoline-6-sulfonate (ABTS) radical scavenging abilities, as well as inhibition of Fe2+-induced lipid peroxidation in rat pancreas in vitro. Conclusions: This study provides a biochemical rationale by which clove elicits therapeutic effect on type 2 diabetes.

关键词： Alpha-amylase Alpha-glucosidase Fe^(2+)-induced lipid peroxidation Pancrea Phenol Antioxidant

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Human induced pluripotent stem cell-derived therapies for regeneration after central nervous system injury

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Neural Regeneration Research 2025年第11期20卷 3063-3075页

作者： stephen Vidman Yee Hang Ethan Ma Nolan Fullenkamp Giles W.Plant Department of Neuroscience Ohio State UniversityColumbusOHUSA

In recent years,the progression of stem cell therapies has shown great promise in advancing the nascent field of regenerative *** the non-regenerative nature of the mature central nervous system,the concept that“blank”cells could be reprogrammed and functionally integrated into host neural networks remained *** work has also demonstrated the ability of such cells to stimulate intrinsic growth programs in post-mitotic cells,such as *** embryonic stem cells demonstrated great potential in treating central nervous system pathologies,ethical and technical concerns *** barriers,along with the clear necessity for this type of treatment,ultimately prompted the advent of induced pluripotent stem *** advantage of pluripotent cells in central nervous system regeneration is multifaceted,permitting differentiation into neural stem cells,neural progenitor cells,glia,and various neuronal *** precise spatiotemporal application of extrinsic growth factors in vitro,in addition to microenvironmental signaling in vivo,influences the efficiency of this directed *** the pluri-or multipotency of these cells is appealing,it also poses the risk of unregulated differentiation and teratoma *** of the neuroectodermal lineage,such as neuronal subpopulations and glia,have been explored with varying degrees of *** the risk of cancer or teratoma formation is greatly reduced,each subpopulation varies in effectiveness and is influenced by a myriad of factors,such as the timing of the transplant,pathology type,and the ratio of accompanying progenitor ***,successful transplantation requires innovative approaches to develop delivery vectors that can mitigate cell death and support ***,host immune responses to allogeneic grafts must be thoroughly characterized and further developed to reduce the need for *** to a clinical setting wi

关键词： axon regeneration central nervous system regeneration induced pluripotent stem cells neurotrauma regenerative medicine spinal cord injury stem cell therapy

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Lead exposure increases oxidative stress in the gastric mucosa of HCl/ethanol-exposed rats

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World Journal of Gastroenterology 2007年第38期13卷 5121-5126页

作者： Samuel Babafemi Olaleye Oluwatosin Adekunle Adaramoye Perebiri Peter Erigbali olasupo Sunday adeniyi Department of Physiology College of Medicine University of Ibadan Ibadan Nigeria Department of Biochemistry College of Medicine University of Ibadan Ibadan Nigeria

AIM: To investigate the role of reactive oxygen species in the ulcer-aggravating effect of lead in albino rats. METHODS: Albino Wistar rats were randomly divided into three groups and treated orally with 100 mg/L (low dose) or 5000 mg/L (high dose) of lead acetate for 15 wk. A third group received saline and served as control. At the end of wk 15, colorimetric assays were applied to determine the concentrations of total protein and nitrite, the activities of the oxidative enzymes catalase and superoxide dismutase, and lipid peroxidation in homogenized gastric mucosal samples. RESULTS: Exposure of rats to lead significantly increased the gastric mucosal damage caused by acidified ethanol. Although the basal gastric acid secretory rate was not significantly altered, the maximal response of the stomach to histamine was significantly higher in the lead-exposed animals than in the unexposed control group. Exposure to low and high levels of lead significantly increased gastric lipid peroxidation to 183.2% ± 12.7% and 226.1% ± 6.8% of control values respectively (P < 0.0). On the other hand, lead exposure significantly decreased catalase and superoxide dismutase (SOD) activities and the amount of nitrite in gastric mucosal samples. CONCLUSION: Lead increases the formation of gastric ulcers by interfering with the oxidative metabolism in the stomach.

关键词： Lead Ulcer Lipid peroxidation Catalase Gastric acid

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Does External Debt Promote Human Longevity in Developing Countries?Evidence from West African Countries

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Fudan Journal of the Humanities and Social Sciences 2023年第2期16卷 213-237页

作者： Samson adeniyi Aladejare Department of Economics Federal University WukariWukariNigeria

This study assessed the impact of external debt on longevity in developing countries,particularly in West Africa,from 1981 to *** was proxied by life expectancy at birth,while the study evaluated effects from external debt from the perspective of sustainability,liquidity,and ***,outcomes from macroeconomic volatility were controlled through inflation and exchange rate ***,the robustness of inferences was ensured by using estimated outcomes from the cross-sectional augmented autoregressive distributed lag(CS-ARDL),dynamic common correlated effects(DCCE),and the Driscoll–Kraay(D–K)***,the study showed that unsustainable,illiquid,and insolvent external debt and macroeconomic volatility shorten longevity mainly in the long-term in West African ***,longevity will decline when weak external debt management promotes poverty in developing countries.

关键词： External debt Life expectancy Quality of life Development West Africa

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A perspective on environmental sustainability in the cement industry

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Waste Disposal and Sustainable Energy 2020年第3期2卷 161-164页

作者： Joshua O.Ighalo Adewale George adeniyi Department of Chemical Engineering Faculty of Engineering and TechnologyUniversity of IlorinIlorin P.M.B.1515Nigeria

Cement production is a major contributor to anthropogenic CO_(2) emissions and solid waste *** paper discusses some of the key issues as regards the slow progress in achieving environmental sustainability in the cement ***-niques such as carbon capture and storage(CCS),material substitution,alternative fuels and energy efficient technologies have been proposed as means of mitigating the negative environmental impact of cement *** was observed that much progress has been made in the area of eco-friendly research *** innovations(considered as disruptive by the mega co-operations)have had issues at the entrepreneurial *** so-called disruptive technologies have strug-gled to meet some performance requirements and satisfy funding evaluators thus are still difficult to fully *** systematisation of the environmental sustainability problem was discussed as a possible way forward both in the environ-mental,economic and social *** into the future,a greater emphasis on systematised decision-based approach could help breach the gap between on-paper plans and practical implementations to achieve environmental sustainability.

关键词： Cement Environment Waste Global warming Pollution Sustainability

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Viewpoint of Nigerians towards sexual abuse and molestation of children:A call to proper education

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Asian Pacific Journal of Tropical Medicine 2022年第5期15卷 191-192页

作者： Abdullahi Tunde Aborode Abideen Opeyemi olasupo Taibat Aduragba Hussain Abayomi Oyeyemi Ajagbe Healthy African Platform Research and DevelopmentIbadanNigeria Brain Builders Youth Development Initiative Research and EducationIlorinNigeria Rising Child Foundation Research and EducationNigeria Department of Anatomy Faculty of Basic Medical SciencesCollege of Health SciencesNile University of NigeriaP.M.B.900001AbujaNigeria

Dating back to several years in Nigeria,there was a new development on the ratification of the Convention on the Rights of the Child[1].This treaty promised to be the“silver bullet”supporting children’s health,protection,and enjoyable *** development is the world’s most rapid ratified human rights treaty,with 120 signatories[2].

关键词： education silver supporting

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