scholarly journals Protective Effects of Methanol Extract of Vernonia amygdalina (del.) Leaf on Aspirin-Induced Gastric Ulceration and Oxidative Mucosal Damage in a Rat Model of Gastric Injury

Dose-Response ◽  
2018 ◽  
Vol 16 (3) ◽  
pp. 155932581878508 ◽  
Author(s):  
Modinat A. Adefisayo ◽  
Rufus O. Akomolafe ◽  
Olumide S. Akinsomisoye ◽  
Quadri K. Alabi ◽  
Laofe Ogundipe ◽  
...  
Keyword(s):  
Body Weight ◽  
Methanol Extract ◽  
Mucosal Damage ◽  
Gastric Volume ◽  
Gastric Ulceration ◽  
Gastric Injury ◽  
Protective Effects ◽  
Vernonia Amygdalina ◽  
Reference Drug ◽  
Gastric Secretions

This study investigated the quantitative polyphenolic constituents and gastroprotective effects of methanol extract of Vernonia amygdalina leaf (MEVA) against aspirin-induced gastric ulcer in rats. Ulceration was induced by 3 days’ oral administration of aspirin (150 mg/kg body weight). Wistar rats were pretreated with cimetidine (reference drug) at a dose of 100 mg/kg body weight and MEVA at 200, 300, and 400 mg/kg body weight once daily for 28 days prior to ulcer induction. At the end of the experiment, gastric secretions, antioxidant status, and histopathological alteration were evaluated. We observed that the significantly increased ulcer index, gastric volume, free and total acidity, malondialdehyde level, and pepsin activity were effectively reduced following treatment with 200 and 300 mg/kg MEVA. The extract also markedly attenuated the reduced activity of superoxide dismutase and reduced glutathione level as well as pH and mucin content in the ulcerated rats. Administration of the extract also significantly attenuates necrosis of the stomach tissue of the ulcerated rats. The results suggested that the MEVA leaf, preferably at 200 and 300 mg/kg body weight, ameliorated aspirin-induced gastric ulceration via antioxidative and H2 receptor antagonist.

scholarly journals HYPOGLYCEMIC EFFECT OF ANDROGRAPHIS ECHIOIDES ON STREPTOZOTOCIN INDUCED EXPERIMENTAL RATS

2015 ◽  
Vol 7 ◽  
pp. 55
Author(s):  
Mani Rupeshkumar ◽  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Wistar Rats ◽  
Methanol Extract ◽  
Fasting Blood Glucose ◽  
Hypoglycemic Effect ◽  
Reference Drug ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Single Intraperitoneal Injection

The present study aims to study the hypoglycemic effect of methanol extract of Andrographisechioides (MEAE) in streptozotocin (STZ)-induced diabetic Wistar rats. Hyperglycemia was induced in rats by single intraperitoneal injection of STZ (55 mg/kg bodyweight). Three days after STZ induction, the hyperglycemic rats were treated with MEAE orally at the doses of 200, 500, and 800 mg/kg body weight daily for 21 days. Glibenclamide (1 mg/kg, orally) was used as reference drug. The fasting blood glucose levels were measured on each 7th day during the 21 days of treatment.

scholarly journals Gastroprotective Effect of Symplocos Racemosa Whole Plant Methanolic Extract Against Experimentally Induced Gastric Ulcer in Rat

2019 ◽  
Vol 7 (2) ◽  
pp. 59-61
Author(s):  
R. K. Gupta ◽  
Ravi Vishwakarma ◽  
Yashwant Giri ◽  
Varinder Singh
Keyword(s):  
Gastric Ulcer ◽  
Methanol Extract ◽  
Methanolic Extract ◽  
Gastric Volume ◽  
Gastric Ulceration ◽  
Antiulcer Activity ◽  
Free Acidity ◽  
Ulcer Index ◽  
Whole Plant ◽  
Symplocos Racemosa

Peptic ulcer is a condition which results from an imbalance between offensive and defensive factors of gastrointestinal system. The investigation was designed to evaluate the antiulcer activity of Symplocos racemosa whole plant methanol extract (MESR) in rat model of indomethacininduced gastric ulceration. The total acidity, gastric volume, pH and free acidity were measured to determine the anti-ulcer activity of MESR. Pretreatment with MESR (125-500 mg/kg) markedly reduced the indomethacin-induced increase in gastric ulcer index and score. These results revealed that antisecretory effects MESR were responsible for antiulcer activity of MESR.

scholarly journals Antioxidant Properties and Anti-Inflammatory Activities of Cucumeropsis Edulis (Seeds)

2021 ◽  
Author(s):  
MERCY BADU ◽  
Blessed Agbemade ◽  
Ransford Boateng ◽  
Isaac Amponsah ◽  
Vivian Boamah
Keyword(s):  
Body Weight ◽  
Petroleum Ether ◽  
Methanol Extract ◽  
Petroleum Ether Extract ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Total Phenol Content ◽  
Coarse Powder ◽  
Reference Drug ◽  
Anti Inflammatory

Abstract This study sought to explore the medicinal properties of extracts obtained from C. edulis seeds. The seeds were obtained from farms in the Upper East Region of Ghana, dried and milled into coarse powder. Petroleum ether, ethyl acetate and methanol were used to extract the bioactive compounds present in the seeds by the cold maceration method. Antioxidant properties of the extracts were evaluated using the Phosphomolybdenum and DPPH free radical scavenging assays. The Folin-Ciocalteu assay was used to estimate the total phenol content and carrageenan-induced paw oedema model in chicks employed for the anti-inflammatory effects. The results showed that methanol extract had the highest antioxidant and anti-inflammatory activities while the petroleum ether extract showed the least activity. The anti-inflammatory activity of the methanol extract (31.3% oedema inhibition at 300 mg/kg body weight) was however lower than diclofenac (54.04% oedema inhibition at 100 mg/kg body weight), the reference drug. Compounds such as tannins, alkaloids, and carotenoids detected during phytochemical screening may be responsible for the activities observed.

scholarly journals Aqueous extract from Cinnamomum zeylanicum (Lauraceae) stem-bark ameliorates gentamicin-induced nephrotoxicity in rats by modulating oxidative stress and inflammatory markers

2021 ◽  
Author(s):  
ATSAMO Albert ◽  
LONTSIE Auscar SONGMENE ◽  
Mireille Flaure METCHI DONFACK ◽  
Omer Bébé NGOUATEU KENFACK ◽  
Télesphore Benoît NGUELEFACK ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Aqueous Extract ◽  
Relative Weight ◽  
Stem Bark ◽  
Negative Control ◽  
Control Group ◽  
Protective Effects ◽  
Cinnamomum Zeylanicum ◽  
Reference Drug

Abstract Nephropathies and especially nephrotoxicity has become one of serious cause of life threatening condition, because of intensive exposure to xenobiotic either by environmental pollution or drug abuse. The present study was undertaken to assess the protective effects of Cinnamomum zeylanicum stem-bark aqueous extract (AECZ) on gentamicin-induced nephrotoxicity. AECZ was prepared by maceration in water and tested orally at the doses of 200 and 400 mg/kg/day to prevent gentamicin induced nephropathies in male Wistar rats. Gentamicin (100 mg/kg/day) was administered for 14 consecutive days by intraperitoneal route, concomitantly with AECZ or silymarin (50 mg/kg/day) used as reference drug. Animal body weight was monitored during the treatment. After the last treatment of the 14 th day, a 24h urine was collected and animals were sacrificed. Blood was collected for the evaluation of hematological and renal function biomarkers. The homogenate of one kidney was used to assess oxidative stress markers and pro-inflammatory cytokine, while the other one was fixed in formaldehyde for histopathological studies. Gentamicin decreased body weight, serum total proteins and calcemia, but increased kidneys relative weight, serum creatinine, urea and uric acid. Moreover, the levels of reduced glutathione, catalase and superoxide dismutase activities were decreased, while an increase in malondialdehyde, proinflammatory cytokines (TNFα, IL-1β, IL-6) and nitrites were observed in negative control group as compared to normal control. Histological analysis of the kidney revealed the presence of tubular necrosis, glomerular degeneration and macrophage infiltration in gentamicin treated group. All these impairment parameters were prevented by AECZ and silymarin treatments.AECZ has a protective effect against gentamicin-induced nephrotoxicity. The antioxidant and anti-inflammatory potentials of this extract may highly contribute to its nephroprotective activity.

scholarly journals The Gastroprotective Effect of Small Molecule Oligopeptides Isolated from Walnut (Juglans regia L.) against Ethanol-Induced Gastric Mucosal Injury in Rats

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1138 ◽  
Author(s):  
Rui Liu ◽  
Yun-Tao Hao ◽  
Na Zhu ◽  
Xin-Ran Liu ◽  
Jia-Wei Kang ◽  
...  
Keyword(s):  
Body Weight ◽  
Gastric Content ◽  
Juglans Regia ◽  
Antioxidant Properties ◽  
Mucosal Injury ◽  
Gastric Mucosal Injury ◽  
Gastric Injury ◽  
Protective Effects ◽  
Sprague Dawley ◽  
Gastroprotective Effect

The study investigated the protective effect of walnut oligopeptides (WOPs) against ethanol-induced gastric injury using Sprague-Dawley (SD) rats. Rats were randomly divided into seven groups based on body weight (10/group), normal group, ethanol group, whey protein group (220 mg/kg body weight), omeprazole group (20 mg/kg body weight), and three WOPs groups (220, 440, 880 mg/kg body weight). After 30 days of treatment with WOPs, rats were given 5 mL/kg absolute ethanol by gavage to induce gastric mucosal injury. Gastric ulcer index (GUI) were determined and the following measured; gastric content pH, gastric mucin, endogenous pepsinogens (PG), prostaglandin E2 (PGE2), inflammatory cytokines, oxidative stress indicators, and the expression of apoptosis-related proteins were measured to evaluate the gastroprotective effect of WOPs. The results showed that the administration with WOPs markedly mitigated the hemorrhagic gastric lesions caused by ethanol in rats, and decreased the GUI, the gastric content pH, PG1, PG2, and NO levels, enhanced mucin and PGE2. Also, WOPs repressed gastric inflammation through the reduction of TNF-α, IL-6, IL-1β and increase IL-10 levels, and revealed antioxidant properties with the enhancement of superoxide dismutase, glutathione, and catalase activity, while reduction of malondialdehyde. Moreover, WOPs treatment significantly down-regulated Bax, caspase-3 and nuclear factor-κB p65 (NF-κB p65) expression, while up-regulating the expression of Bcl-2 and inhibitor kappa Bα (IκBα) protein. These results indicated that WOPs have protective effects against ethanol-induced gastric mucosal injury in rats through anti-inflammatory, anti-oxidation, and anti-apoptosis mechanisms.

Gastric mucosal protection with chronic mild restraint: role of endogenous prostaglandins

1984 ◽  
Vol 247 (2) ◽  
pp. G127-G132 ◽  
Author(s):  
J. L. Wallace ◽  
M. M. Cohen
Keyword(s):  
Chronic Stress ◽  
Mucosal Injury ◽  
Mucosal Damage ◽  
Gastric Fundus ◽  
Gastric Mucosal Damage ◽  
Gastric Injury ◽  
Protective Effects ◽  
Endogenous Prostaglandins

The role of endogenous prostaglandins (PGs) in adaptation of the rat gastric mucosa to chronic stress was examined. After 10 days of chronic mild restraint (CMR), gastric mucosal damage induced by orally administered 40% ethanol was significantly (P less than 0.01) less extensive than that to control mucosae. When the mucosal injury was produced by oral administration of acetylsalicylic acid (250 mg/kg), there was no protection afforded by prior exposure to CMR. Pretreatment with indomethacin (1 mg/kg ip) abolished the protective effects of CMR against ethanol injury. The indomethacin blockade of CMR protection was reversed by the subsequent administration of PGE2 (75 micrograms/kg po). Fundic samples from 10-day CMR rats synthesized three times as much PGE2 (P less than 0.01) and twice as much 6-keto-PGF1alpha (P less than 0.05) as control samples. Thromboxane B2 synthesis by control and CMR samples was not significantly different. The capacity of gastric fundus and antrum to synthesize PGE2 in vitro was higher in samples from CMR rats than from controls. These results suggest that the resistance to gastric injury that develops during chronic stress is mediated by endogenous prostaglandins.

Protective effects of Ankaferd blood stopper on aspirin-induced oxidative mucosal damage in a rat model of gastric injury

2012 ◽  
Vol 30 (10) ◽  
pp. 888-895 ◽  
Author(s):  
Rukiye Hasgul ◽  
Sema Uysal ◽  
Hacer Haltas ◽  
Sumeyye Akyol ◽  
Yasemin Yuksel ◽  
...  
Keyword(s):  
Rat Model ◽  
Mucosal Damage ◽  
Gastric Injury ◽  
Protective Effects ◽  
Ankaferd Blood Stopper

scholarly journals Methanol Extract of Azanza garckeana Fruit Pulps Protects against Formalin-Induced Reproductive Toxicity in Adult Albino Male Mice

2021 ◽  
pp. 38-49
Author(s):  
Bukata B. Bukar ◽  
Faith Ezeh ◽  
Sunday Y. Sabo
Keyword(s):  
Body Weight ◽  
Methanol Extract ◽  
Reproductive Toxicity ◽  
Oral Route ◽  
Untreated Group ◽  
Phytochemical Analysis ◽  
Testicular Toxicity ◽  
Protective Effects ◽  
Sperm Analysis ◽  
Body Weight Increase

Introduction: The aqueous extract of Azanza garckeana was recently reported of exhibiting ameliorative and pro-fertility properties however the protective effects on formalin testicular toxicity have not been studied. Objective: This study investigated the protective effect of methanol extract of Azanza garckeana on formalin-induced testicular toxicity. Methods: Forty male albino mice were randomly divided into 8 groups of 5. Animals in the first group (1) served as control and administered normal saline (1 ml/kg) by the oral route daily for 40 days. In similar manner, animal in groups 2 received formalin (10 mg/kg) by the IP route, while animals in groups 3; 4 and 5 concurrently received formalin (10 mg/kg IP) and extract at doses of 125; 250 and 500 mg/kg respectively by the oral route. Mice in groups 6; 7 and 8 received the extract at doses of 125; 250 and 500 mg/kg respectively. Phytochemical analysis was conducted for each constituent using specific methods. Gonadotropin and sperm analysis were carried out using standard methods. Result: Phytochemical screening revealed the presence of various constituents, but notably flavonoids. Induced-toxicity with formalin and concurrent treatment with extract at doses of 250 and 500 mg/kg from day 20 to 40 caused significant body weight increase compared to baseline (p < 0.05).  Similarly, treatment with the extract alone at all doses caused significant increase in body weight from day 20 to 40 (p < 0.05). Treatment with the extract at 250 and 500 mg/kg, caused a significant increase in weight of testes and epididymis compared to control and untreated group (p < 0.05).The extract induced significant increase in gonadotropin levels of animals compared to control and the untreated group (p < 0.05).The extract at 125 mg/kg demonstrated the highest fecundity potential, but there was no any consistent relationship between GSI and fecundity. Conclusion: This investigation was able to establish the protective and pro-fertility potentials of methanol extract of Azanza garckeana.

Protective effects of ethanol extract of a Mexican propolis on indomethacin-induced gastric mucosal damage in mice.

2019 ◽  
Author(s):  
DV Pilar ◽  
VVS Ibran ◽  
RC Mario ◽  
CA Octavio ◽  
MM Canales-Martinez ◽  
...  
Keyword(s):  
Ethanol Extract ◽  
Mucosal Damage ◽  
Gastric Mucosal Damage ◽  
Protective Effects

Hepato-renal protective effects of gallic acid and p-coumaric acid in nicotinamide/streptozotocin-induced diabetic rats

2016 ◽  
Vol 5 (06) ◽  
pp. 4641 ◽  
Author(s):  
Adel Abdel Moneim* ◽  
Sanaa M. Abd El-Twab ◽  
Mohamed B. Ashour ◽  
Ahmed I. Yousef
Keyword(s):  
Body Weight ◽  
Gallic Acid ◽  
Protein Profile ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Hypoglycemic Agents ◽  
Protective Effects ◽  
Coumaric Acid ◽  
Experimental Type

The goal of diabetes treatment is primarily to save life and alleviate symptoms and secondary to prevent long-term diabetic complications resulting from hyperglycemia. Thus, our present investigation was designed to evaluate the hepato-renal protective effects of gallic acid and p-coumaric acid in nicotinamide/streptozotocin (NA/STZ)-induced diabetic rats. Experimental type 2 diabetes was induced by a single intraperitoneal (i.p.) injection of STZ (65 mg/kg b.wt.), after 15 min of i.p. injection of NA (120 mg/kg b.wt.). Gallic acid and p-coumaric acid were orally administered to diabetic rats at a dose of 20, 40 mg/kg b.wt./day, respectively, for 6 weeks. Body weight, serum glucose, protein profile, liver function enzymes and kidney function indicators was assayed. Treatment with either gallic acid or p-coumaric acid significantly ameliorated the elevated levels of glucose, alanine aminotransferase (ALT), aspartate aminotransferase (AST), urea and uric acid. Both compounds were also found to restore total protein, albumin, and globulin as well as body weight of diabetic rats to near normal values. It can conclude that both gallic acid and p-coumaric acid have potent hypoglycemic and hepato-renal protective effects in diabetic rats. Therefore, our results suggest promising hypoglycemic agents that can attenuate the progression of diabetic hepatopathy and nephropathy.

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