Protective Effect of Methanol Stem Bark Extract of Cocos nucifera on Paracetamol-induced Hepatotoxicity in Adult Wistar Rats

2016 ◽  
Vol 11 (4) ◽  
pp. 1-10 ◽  
Author(s):  
Damilola Omoboyowa ◽  
Nwogo Obasi ◽  
Glory Otuchristian ◽  
Garba Danladi ◽  
Martin Okon
Keyword(s):  
Protective Effect ◽  
Wistar Rats ◽  
Cocos Nucifera ◽  
Stem Bark ◽  
Bark Extract ◽  
Stem Bark Extract

scholarly journals Ameliorating effects of Cissus populnea aqueous stem bark extract on some parameters in diabetic Wistar rats

2021 ◽  
Vol 3 (2) ◽  
pp. 107
Author(s):  
Aondoaseer Kasar ◽  
Ndubisi A Chidi ◽  
Adilieje Chioma M ◽  
Ibegbu Madu D
Keyword(s):  
Wistar Rats ◽  
Stem Bark ◽  
Bark Extract ◽  
Stem Bark Extract

Neuroprotective Effects of the Anthocleista Schweinfurthii Gilg. (Loganiaceae) Stem Bark Extract in Postmenopause-Like Model of Ovariectomized Wistar Rats

2019 ◽  
Vol 16 (1) ◽  
Author(s):  
Ngoungoure Madeleine Chantal ◽  
Dzeufiet Djomeni Paul Désiré ◽  
Bilanda Danielle Caude ◽  
Mengue Ngandena Yolande Sandrine ◽  
Mbolang Nguegang Lohik ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Plant Extract ◽  
Total Protein ◽  
Wistar Rats ◽  
Stem Bark ◽  
Bark Extract ◽  
Estradiol Valerate ◽  
Neuroprotective Effects ◽  
Protein Levels ◽  
Stem Bark Extract

Abstract Background Estrogen deficiency in postmenopausal period causes severe neuroendocrine changes in brain which influences memory and other nervous functions. Anthocleista schweinfurthii is used traditionally to treat female infertility and menopause related symptoms. This study was performed to investigate the potential neuroprotective effects of aqueous extract of Anthocleista schweinfurthii on brain in a postmenopause-like model of ovariectomized Wistar rats. Methods Thirty animals were sham-operated or ovariectomized (Ovx) 84 days after surgery, six groups of five rats each were daily treated orally during 28 days with: distilled water for groups 1 (sham-operated) and 2 (Ovx), estradiol valerate (group 3) and the three doses of extracts {groups 4, 5 and 6 (Ovx)}. Biochemical and histological evaluations focused on brain. Results Compared to sham-operated control, ovariectomy decreased total protein levels in brain (p<0.01) which was increased by plant extract at the dose of 300 mg/kg (p<0.05), underlying its anabolic properties. Ovariectomy significantly decreased magnesium levels in brain (p<0.001). Anthocleista schweinfurthii increased significantly magnesium levels (p<0.01), showing its capacity to act on synaptic conduction. Ovariectomy induced oxidative stress by increasing malondialdehyde levels (p<0.05) and decreasing reduced glutathione levels (p<0.05) in brain. The plant extract exhibited antioxidative activity by reducing malondialdehyde levels and increasing glutathione levels in brain. Damage in brain structure which was caused by ovariectomy disappeared following the treatment. Conclusions Results suggest that Anthocleista schweinfurthii may have neuroprotective effects in Ovx Wistar rats by increasing total protein, magnesium levels and reducing oxidative stress in brain.

Subchronic toxicity studies of aqueous leaf and stem bark extract of Irvingia gabonensis in male albino wistar rats

2017 ◽  
Vol 26 (3) ◽  
pp. 553-559 ◽  
Author(s):  
Chukwunonso K. Ezeasor ◽  
Chigozie Chukwuma ◽  
Samuel O. Ekere ◽  
Patrick Abah
Keyword(s):  
Wistar Rats ◽  
Stem Bark ◽  
Bark Extract ◽  
Subchronic Toxicity ◽  
Toxicity Studies ◽  
Irvingia Gabonensis ◽  
Stem Bark Extract

scholarly journals Antinociceptive and Anti-Inflammatory Activities of Ethanolic Stem Bark Extract of Smilax zeylanica Linn. in Wistar Rats

2021 ◽  
pp. 103-113
Author(s):  
Rasheed Ahemad Shaik ◽  
Fazil Ahmad ◽  
Mohammed Abdul Aleem
Keyword(s):  
Acetic Acid ◽  
Wistar Rats ◽  
Ethanol Extract ◽  
Stem Bark ◽  
Drug Group ◽  
Bark Extract ◽  
Hot Plate ◽  
Paw Oedema ◽  
Stem Bark Extract ◽  
Anti Inflammatory

Background: Smilax zeylanica Linn (Smilaceae) is a woody climbing shrub native to Asia's tropical and subtropical highlands. Traditionally, this plant has been widely used to cure a variety of ailments. Smilax zeylanica stem bark was extracted with ethanol to test its antinociceptive and anti-inflammatory properties. Objective: To study the antinociceptive and anti-inflammatory activities of ethanolic stem bark extract of Smilax zeylanica Linn. in Wistar rats. Methods: The antinociceptive activity has been assessed in mice by formalin-induced paw licking, Eddy’s hot-plate, and acetic-acid induced abdominal stretching models. Carrageenan-induced paw oedema in rats has been conducted to explore the anti-inflammatory activity. Tween 80 (10ml/kg, p.o) was given to the control group, test drug group received ethanol extract of Smilax zeylanica (EESZ) orally at doses of 200 and 400 mg/kg, and standard drugs morphine (5 mg/kg, s.c), diclofenac sodium (10 mg/kg, i.p) were injected to the standard drug group. Results: Oral administration of ethanolic extract of Smilax zeylanica (EESZ) at test doses (200 and 400 mg/kg), produced a significant decrease of the paw licking time for 2 phases (neurogenic and inflammatory) in the formalin test, upsurge of the reaction time in Eddy’s hot plate test, and significantly decreased the abdominal stretching in the acetic acid-induced  writhes test. Ethanol extract of Smilax zeylanica significantly decreased the carrageenan-induced paw oedema. Conclusion: The ethanol extract of Smilax zeylanica possesses antinociceptive, anti-inflammatory activity, probably involving central and peripheral pathways

Effects of Aqueous Stem Bark Extract of Citrus aurantifolia on the Gastrointestinal Tract of Wistar Rats

2018 ◽  
Vol 5 (3) ◽  
pp. 1-7
Author(s):  
Idakwoji Precious Adejoh ◽  
Ajima Judith Nnedimkpa ◽  
Anosike Joy Chizoba ◽  
Amadi Emenike Benjamin ◽  
Nweje-Anyalowu Paul Chukwuemeka
Keyword(s):  
Gastrointestinal Tract ◽  
Wistar Rats ◽  
Stem Bark ◽  
Bark Extract ◽  
Citrus Aurantifolia ◽  
Stem Bark Extract

scholarly journals Qualitative phytochemical screening and antipyretic activity of methanolic stem bark extract of Mangifera indica in wistar rats

2020 ◽  
Vol 9 (4) ◽  
pp. 218-223
Author(s):  
Godfrey Mutuma Gitonga ◽  
◽  
Joseph Ngeranwa ◽  
Alex King’ori Machocho ◽  
Silas Kiruki ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Mangifera Indica ◽  
Stem Bark ◽  
Bark Extract ◽  
Phytochemical Screening ◽  
Antipyretic Activity ◽  
Stem Bark Extract

scholarly journals Antidiabetic effect of aqueous stem bark extract of Parinari macrophylla in alloxan-induced diabetic Wistar rats

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ahmad Alhassan Ibrahim ◽  
Muhammed Sani Abdussalami ◽  
Joseph Appah ◽  
Abdullahi Hussein Umar ◽  
Aminu Alhassan Ibrahim ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Acute Toxicity ◽  
Wistar Rats ◽  
Stem Bark ◽  
Bark Extract ◽  
Antidiabetic Effect ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Stem Bark Extract ◽  
Different Doses

Abstract Background Diabetes is a major public health problem with increasing prevalence globally. Plant-based medicines for diabetes are gaining popularity across the world due to perceptions of efficacy, safety and cost-effectiveness. The plant, Parinari macrophylla, has been widely reported to possess potent ethnomedicinal properties especially in the northern part of Nigeria. However, there has been no scientific documentation of this plant to be used as an antidiabetic agent. The objective of this study was to investigate the antidiabetic effect of aqueous stem bark extract of P. macrophylla in alloxan-induced diabetic Wistar rats. Phytochemical screening and acute toxicity studies were conducted. Wistar rats weighing between 100 and 150 g were used for the study and diabetes was induced using alloxan monohydrate (150 mg/kg) intraperitoneally. The animals were treated with different doses of aqueous stem bark extract of P. macrophylla (1000 mg/kg and 2000 mg/kg) for 2 weeks. Blood glucose levels and body weight were then monitored. Histopathological investigation of pancreatic tissue was also conducted. Results The phytochemical analysis revealed the presence of alkaloids, saponins, tannins, cardiac glycosides, carbohydrates, steroids, and triterpenes as secondary metabolites. The acute toxicity test revealed no mortality with a median lethal dose determined to be above 5000 mg/kg. Although the two different doses of aqueous stem bark extract of P. macrophylla decreased blood glucose levels at weeks 1 and 2, a statistically significant difference (P < 0.05) was only observed for the group treated with 2000 mg/kg dose compared to the diabetic control group at week 2. The histological investigation revealed that the two different doses of aqueous stem bark extract of P. macrophylla caused regeneration of pancreatic islet cells, with the 2000 mg/kg dose being more evident. Conclusion This study suggests that the stem bark extract of P. macrophylla possesses a potent antidiabetic effect and may potentially be used to treat diabetes and associated complications. Graphical Abstract

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