Analgesic activity and acute toxicity study of Semecarpus anacardium stem bark extracts using mice

Most of biochemical reactions in the body generates Reactive Oxygen Species (ROS), which are involved in the pathogenesis of oxidative stress-related disorders like diabetes, nephrotoxicity, cancer, cardiovascular disorders, inflammation and neurological disorders when they attack biochemical molecules like proteins, lipids and nucleic acid. Antioxidants are used to protect the cells or tissues against potential attack by ROS. Most medicinal plants possess a rich source of antioxidants such as flavonoids, phenols, tannins, alkaloids among others. These phytochemicals are currently pursued as an alternative and complimentary drug. In this study, phytochemical components, antioxidant and acute toxicity study of the methanol extract of stem bark and root of F. sycomorus were carried out using standard methods. Findings from this study revealed the presence of some diagnostic microscopical features such as calcium oxalate, starch, gum/mucilage, lignin, Aleurone grain, suberized/Cuticular cell wall and inulin but calcium carbonate was absent in stem bark but present in the powdered root. Quantitative physical constants include moisture contents (6.40% and 7.82%), ash value (7.20% and 9.30 %) in stem bark and root respectively. Carbohydrates, alkaloid, flavonoids, saponins, tannins, glycoside, steroid, triterpenes and phenols were present in all the extracts. They were found to exhibit potent 1,1,-diphenyl 2-picryl hydrazyl (DPPH) free scavenging activity. The DPPH radical scavenging ability of the extracts showed the following trend Ascorbic acid < stem bark extract˃ root extract. The LD50 of the methanolic stem bark and root extracts were found to be greater than 5000 mg /kg and is considered safe for use. Nonetheless, further

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Sub-acute toxicity study on the aqueous extract of Albizia zygia stem bark

Journal of Pharmacy & Bioresources ◽

10.4314/jpb.v13i1.5 ◽

2016 ◽

Vol 13 (1) ◽

pp. 32 ◽

Cited By ~ 2

Author(s):

Stephen O. Okpo ◽

Clare O. Igwealor ◽

Gerald I. Eze

Keyword(s):

Acute Toxicity ◽

Aqueous Extract ◽

Stem Bark ◽

Toxicity Study ◽

Acute Toxicity Study

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Comparative acute toxicity study of the pulp, seed and stem bark (aqueous) extracts of Zizyphus spina-christi L.(Kurna)

Journal of Pharmacy & Bioresources ◽

10.4314/jpb.v7i1.67749 ◽

2011 ◽

Vol 7 (1) ◽

Author(s):

GM Tom ◽

HB Yesufu ◽

FI Abdulrahman

Keyword(s):

Acute Toxicity ◽

Stem Bark ◽

Toxicity Study ◽

Aqueous Extracts ◽

Acute Toxicity Study ◽

Comparative Acute Toxicity

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Toxicological evaluation of the stem bark of Burkea africana hook. (Caesalpiniaceae) in wistar rats

Nigerian Journal of Natural Products and Medicine ◽

10.4314/njnpm.v23i1.5 ◽

2020 ◽

Vol 23 ◽

pp. 33-40

Author(s):

O.K. Eboji ◽

A.A. Sowemimo ◽

O.O. Ogunkunle ◽

M.O. Sofidiya ◽

K.B. Badmos ◽

...

Keyword(s):

Acute Toxicity ◽

Chronic Toxicity ◽

Hematological Parameters ◽

Total Mortality ◽

Ethanolic Extract ◽

Stem Bark ◽

Toxicity Study ◽

Toxicological Evaluation ◽

Acute Toxicity Study ◽

Acute And Chronic Toxicity

Burkea africana Hook. (Caesalpiniaceae) is used traditionally to treat ulcers, headaches, skin disease and tumors. The study investigated the acute, sub-acute and chronic toxicity profiles of the ethanolic extract of Burkea africana stem bark. Rats of either sexes were used in this study (n=10). For acute toxicity, a single dose of 5,000 mg/kg was administered while for the sub-acute and chronic toxicity study, three doses (40, 200 and 1000 mg/kg) of the extract were administered orally for 28 and 90 days respectively. At the end of each study, the biochemical, hematological and histological parameters were evaluated. No mortality or behavioral changes were observed in the acute toxicity study. Extract caused significant changes in the hematological parameters after the sub-acute toxicity study. In the chronic toxicity study, the extract caused significant increase in the white blood cell count of the 200 mg/kg group. There was significant increase in the platelet count of treated groups compared to control in the sub-acute and chronic toxicity studies, with an observed total mortality of all the animals in the 1000 mg/kg group on the 44th day. No adverse pathology was observed in the organs examined. The extract elicited a hematological response and short term consumption of the extract at low doses might be relatively safe. However, long term consumption at high doses should be discouraged.

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Effect of Aqueous Ethanol Stem Extract of Entada africana Guill. Et Perrott. on Castor Oil and Magnesium Sulphate-Induced Diarrhoea Models in Mice

Asian Journal of Research in Medical and Pharmaceutical Sciences ◽

10.9734/ajrimps/2020/v9i230146 ◽

2020 ◽

pp. 1-9

Author(s):

Abubakar Bilyamini Mu’azu ◽

Muhammad Ibrahim Usman

Keyword(s):

Acute Toxicity ◽

Elemental Analysis ◽

Magnesium Sulphate ◽

Castor Oil ◽

Aqueous Ethanol ◽

Stem Bark ◽

Toxicity Study ◽

Acute Toxicity Study ◽

Rabbit Jejunum ◽

Pharmacologically Active

This study investigated the phytochemical, elemental analysis, acute toxicity study of aqueous ethanol stem bark extract of Entada africana, as well as its antidiarrhoeal activity in mice and its effects on isolated rabbit jejunum. The preliminary phytochemical screening revealed the presence of alkaloids, flavonoids, cardiac glycosides, phenols, saponins, steroids, tannins and terpenoids. Elemental analysis of the extract showed the presence of magnesium (Mg), manganese (Mn), iron (Fe), copper (Cu), lead (Pb), zinc (Zn) and sodium (Na) while acute toxicity study revealed intraperitoneal median lethal dose (LD50) values for the extract to be 774.6 mg/kg body weight. The antidiarrheal effect of the extract was studied using castor-oil and magnesium sulphate induced diarrhoeal models (dropping test) and gastrointestinal transit test in mice. The result showed that the extract produced a dose-dependent protection against diarrhoea induced by castor oil and magnesium sulfate, with the highest protection (80 and 100%), obtained at 100 and 200 mg/kg. The extract significantly (p≤0.01) reduced the small intestinal transit of charcoal meal in mice at all doses tested. The extract (0.4-3.2 mg/ml) produced a concentration dependent relaxation of the rabbit jejunum, and the effects were blocked by propranolol (0.04 and 0.64 μg/ml). The results of this study showed that the extract contain pharmacologically active substance with antidiarrhoeal properties mediated through inhibition of hyper secretion and reduced gastrointestinal motility. These properties may explain the rationale for use of it’s stem bark as antidiarrhoeal remedy in traditional medicine.

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Acute Toxicity Study and Serum Lipids Profile of Pet-Ether Extract of Leave, Stem Bark and Root of Jatropha curcas in Wister Rats

Saudi Journal of Biomedical Research ◽

10.36348/sjbr.2020.v05i03.001 ◽

2020 ◽

Vol 05 (03) ◽

pp. 30-35

Author(s):

Abdulmumin T.M ◽

Abdulmumin Y ◽

Ibrahim AM ◽

Sarki S I ◽

Murtala M

Keyword(s):

Acute Toxicity ◽

Jatropha Curcas ◽

Serum Lipids ◽

Stem Bark ◽

Toxicity Study ◽

Ether Extract ◽

Acute Toxicity Study ◽

Lipids Profile

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In-vitro and in-vivo evaluation of antidiabetic activity of Withania coagulans extract

The Natural Products Journal ◽

10.2174/2210315509666190416155757 ◽

2019 ◽

Vol 09 ◽

Author(s):

Tejas Patel ◽

B.N. Suhagia

Keyword(s):

Blood Glucose ◽

Acute Toxicity ◽

Aqueous Extract ◽

Pancreatic Beta Cell ◽

Toxicity Study ◽

Acute Toxicity Study ◽

Withania Coagulans ◽

Study Results

Background: Diabetes mellitus is major issue to public health as its prevalence is rising day by day. Synthetic agents available for the diabetic treatment are expensive or produce undesirable side effect on chronic use and some of them are not suitable during pregnancy. Herbal medicines accepted widely due to side effects and low cost. Objective: The aim of present study was to evaluate the activity of Withania coagulans extract using In-vitro and In-vivo model. Methods: Different three types of Withania coagulans extract were prepared using aqueous (W1), Alcohol (W2) and hydro-alcoholic (50:50) mixture (W3). In-vitro Anti-diabetic activity of the all three extracts evaluated using RINm5F Pancreatic beta cells.Further, n-vivo anti-diabetic evaluation performed by administering 50 mg/kg (p.o) aqueous extract for 7 days in Streptozotocin (STZ)-induced mice. Body weight of the animals was also determined to perform acute toxicity study. Results: The results of in –vitro cell based study indicated that among all three extract, aqueous extract (W1) of Withania coagulans showed potential increase in inulin release. The EC50 of the W1 (249.6 µg/L) which is compared with standard (Glibenclamide) EC50. From the results of In-vitro study, W1 subjected for acute toxicity study and the acute toxicity study results indicated LD50 of 50mg/kg. Diabetic rats treated with W1 extract at oral dose of 50 mg/kg for 7 days showed 34.17% reduction in blood glucose in comparison to untreated diabetic (STZ-induced) rats. Blood glucose levels of Standard treated (Glibenclamide) and control untreated. Conclusion: In conclusion, results of pancreatic beta cell based study showed increase in insulin release by administration of extract. Further aqueous extract (W1) was potentially reduced blood glucose level in STZ induced diabetic mice.

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Safety Evaluation of Eucalyptus globulus Essential Oils through Acute and Sub-acute Toxicity and Skin Irritation in Mice and Rats

Current Chemical Biology ◽

10.2174/2212796814999200818095036 ◽

2020 ◽

Vol 14 (3) ◽

pp. 187-195

Author(s):

Berhan Mengiste ◽

Tizazu Zenebe ◽

Kassahun Dires ◽

Ermias Lulekal ◽

Awol Mekonnen ◽

...

Keyword(s):

Acute Toxicity ◽

Essential Oil ◽

Eucalyptus Globulus ◽

Biochemical Parameters ◽

Skin Irritation ◽

Toxicity Study ◽

Subacute Toxicity ◽

Acute Toxicity Study ◽

Limit Test ◽

Ointment Formulation

Background: The Eucalyptus globulus extractions have been used by the traditional healers to treat diseases in the study area. Our previous study revealed that the essential oil has antimicrobial and antifungal activity. This study determined phytochemical analysis, skin irritation, acute and subacute toxicity of Eucalyptus globulus essential oil in mice and rats. Methods: The phytochemicals were analyzed using GC-MS mass spectrometry. The acute toxicity study was determined at three dose levels of 1500 mg/kg, 1750mg/kg, and 2000 mg/kg. The essential oil limit test at a dose of 1000 mg/kg was administered to mice for 28 consecutive days for sub-acute toxicity study. The mice mortality, behavioral change, injury and other signs of illness were recorded once daily. Biochemical parameters were evaluated. Liver and kidney were analyzed for histopathological analyses. The 5% ointment formulation was applied to the rat skin to determine skin irritation effects. Results: The Eucalyptus globulus essential oil showed no effect on the mice at a dose of 1500mg/kg and below, but caused signs of toxicity and death at a dose of 1750mg/kg and above compared to the controls (p<0.05). The LD50 value was 1650 mg/kg. There was no significant difference (p > 0.05) in the body weights, gross abnormalities of the organs and biochemical parameters compared to the control at 1000 mg/kg subacute toxicity study. No histopathological changes were detected in the organs tested. The 5% ointment formulation did not show any abnormal skin reaction. Discussion: In the present study, the Eucalyptus globulus essential oil was comparable with other studies in terms of both chemical composition and its effects on sub-acute and topical application. Conclusion: This toxicity study demonstrated that Eucalyptus globulus essential oil is nontoxic at a relatively lower concentration.

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