Acute and sub-acute toxicity study of ethanol extract from Nectandra leucantha Nees & Mart. (Lauraceae) barks

2021 ◽  
pp. 1-8
Author(s):  
July Silva Ferreira ◽  
Alanne Lucena de Brito ◽  
Silvana Tavares Paz ◽  
Humberto de Moura Barbosa ◽  
Jeymesson Raphael Cardoso Vieira ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Ethanol Extract ◽  
Toxicity Study ◽  
Acute Toxicity Study

scholarly journals Study the Acute & Sub Acute Toxicity of Ricinus cummunis Lnn. Ethanol Extract of Seed in Albino Mice

2018 ◽  
Vol 6 (02) ◽  
Author(s):  
Manal H. AL-Jborrey ◽  
Muastafa A. K. Altaie ◽  
Ayyad W. Al-Shahwany
Keyword(s):  
Acute Toxicity ◽  
Morphological Changes ◽  
Ricinus Communis ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Chronic Administration ◽  
Industrial Applications ◽  
Toxicity Study ◽  
Herbal Extract ◽  
Acute Toxicity Study

Background: Toxicity still a global problem for the environment, agriculture and ultimately human health. Objective: In this study attempt to investigate the toxicological profile of the ethanol, extract of Ricinus cummunis after acute and sub-chronic administration to mice. Methods: In the acute toxicity study, a single administration of the extract at doses of 1000,2000,3000,4000 and 5000 mg/kg, respectively, was gave orally. Mice were observed for general behavioral changes, adverse effects and mortality up to 10 days post-treatment. In sub-acute toxicity studies, herbal extract was gave orally to mice at doses of 50 mg/kg, 100 mg/kg and 150 mg/kg for 10 days. Results: In the acute toxicity study, the mortality appeared in 2000 mg/kg and LD50 were calculated at 1100 mg/kg. In the sub-chronic toxicity the study show significant differences in body weight between the control and treated groups (p < 0.05). Histopathology of vital organ (liver & kidney) show morphological changes. Conclusions: These results demonstrate the real toxic effect of the ethanolic extract after single dose. The LD50 value is 1100 mg/kg and research indicates that successive use of the seed at the dose above (2 g/kg in human) daily for long period may cause toxic signs. Highlights: The Ricinus communis oil's has wide variety of industrial applications: as a drying oil for paints, varnishes, plastics and resins is an ingredient in numerous cosmetics. But it need to toxicity study as acute and sub-acute with observation of hematological and histopathological to be more safety  for used.

scholarly journals Hepatoprotective effect of Helicanthus elastica

2016 ◽  
Vol 11 (2) ◽  
pp. 525 ◽  
Author(s):  
K.N. Sunil Kumar ◽  
R. Rajakrishnan ◽  
J. Thomas ◽  
G. Aadinaath Reddy
Keyword(s):  
Body Weight ◽  
Acute Toxicity ◽  
Dose Level ◽  
Video Clip ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Toxicity Study ◽  
Oral Toxicity ◽  
Acute Toxicity Study ◽  
Whole Plant

<p class="Abstract">Search for medicinal plants to treat liver disorders is an important research topic on herbs. Acute toxicity study is a prerequisite for safety and dose fixation for further pharmacological actions. In the present study, aqueous and 95% ethanolic extract of whole plant of <em>Helicanthus elastica</em> were subjected to acute oral toxicity. The aqueous and ethanolic extract revealed no observable changes in the rats up to the dose level of 2,000 mg /kg body weight. The extracts were then screened for paracetamol-induced hepatic injury at dose levels of 200 and 400 mg/kg body weight (1/10 and 1/5 LD<sub>50 </sub>based on toxicity study). The aqueous extract of whole plant of <em>H. elastica</em> was found to produce significant (p&lt;0.05) reversal of the paracetamol-induced changes in the measured biochemical and histopathological parameters at lower dose of 200 mg/kg which was found to be better than ethanol extract at the same dose level.</p><p class="Abstract"><strong>Video Clip:</strong></p><p class="Abstract"><a href="https://www.youtube.com/v/cO6HI1Kikxs">Acute toxicity study and others:</a> 5 min 38 sec</p><p> </p>

PHARMACOGNOSTIC, ANTIOXIDANT AND ACUTE TOXICITY STUDY OF Ficus sycomorus (Linn) (Moraceae) ROOT AND STEM BARK

2020 ◽  
Vol 4 (2) ◽  
pp. 605-614
Author(s):  
Murtala M. Namadina ◽  
H. Haruna ◽  
U. Sanusi
Keyword(s):  
Acute Toxicity ◽  
Radical Scavenging ◽  
Stem Bark ◽  
The Body ◽  
Toxicity Study ◽  
Bark Extract ◽  
Root Extract ◽  
Acute Toxicity Study ◽  
Radical Scavenging Ability ◽  
Phytochemical Components

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

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

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.

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

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.

scholarly journals EVALUATION OF ACUTE TOXICITY STUDY AND DIURETIC ACTIVITY OF URAL SYRUP

2013 ◽  
Vol 4 (4) ◽  
pp. 522-525
Author(s):  
Tejas Thakkar ◽  
Rakesh Patel ◽  
Hardik Soni ◽  
Ghanshyam Patel
Keyword(s):  
Acute Toxicity ◽  
Toxicity Study ◽  
Diuretic Activity ◽  
Acute Toxicity Study

scholarly journals Acute Toxicity Study of Standardized Mitragyna speciosa Korth Aqueous Extract in Sprague Dawley Rats

2012 ◽  
Vol 1 (2) ◽  
Author(s):  
Mohd Saleh Ahmad Kamal ◽  
Ahmad Rohi Ghazali ◽  
Noral ‘Ashikin Yahya ◽  
Mohd Isa Wasiman ◽  
Zakiah Ismail
Keyword(s):  
Acute Toxicity ◽  
Aqueous Extract ◽  
Toxicity Study ◽  
Sprague Dawley ◽  
Mitragyna Speciosa ◽  
Acute Toxicity Study ◽  
Sprague Dawley Rats

scholarly journals Acute Toxicity Study of Porang (Amorphophallus oncophyllus) Flour Macerated with Strobilanthes crispus in Wistar Rats

2021 ◽  
Vol 9 (A) ◽  
pp. 976-981
Author(s):  
Rizka Qurrota A’yun ◽  
Uswatun Hasanah ◽  
Hamam Hadi ◽  
Mustofa Mustofa ◽  
Eva Nurinda ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Bioactive Compound ◽  
Urinary Protein ◽  
Toxicity Study ◽  
Fixed Dose ◽  
Oral Toxicity ◽  
Biochemical Tests ◽  
Serum Glutamic Oxaloacetic Transaminase ◽  
Acute Toxicity Study ◽  
Strobilanthes Crispus

BACKGROUND: Porang (Amorphophallus oncophyllus) is a local tuber food that high in bioactive compound glucomannan. It uses are limited due to oxalate acid content which poses health risks. Strobilanthes crispus leaves could reduce the level of calcium oxalate in porang. However, there is still no study to prove its safety. AIM: This study aimed to investigate the acute oral toxicity study of porang (A. oncophyllus) macerated with S. crispus based on observation of mortality rate (LD50), the changes in behavior during 72 h, renal and hepatic function such as urinary protein, serum glutamic oxaloacetic transaminase (SGOT), and serum glutamic pyruvic transaminase (SGPT) levels of Wistar rat (Rattus norvegicus) METHODS: An acute toxicity test was conducted based on the Organization of Economic Co-Operation and Development 420 Fixed-Dose Procedure Guideline that consists of preliminary and main studies. For the preliminary study, rats were divided into control and five treatment groups with the dosage of 50, 300, 2000, and 5000 mg/kg body weight (BW) for each natural porang flour (NPF) and S. crispus-macerated porang flour (SPF). For the main study, rats were divided into four groups, those were NPF and SPF with the dosage of 2000 and 5000 mg/kg BW. Levels of urinary protein and blood serum SGOT and SGPT levels were measured at 0, 24, and 72 after treatment. RESULTS: The acute toxicity study showed that porang and porang macerated with S. crispus were not toxic until the highest dose of 5000 mg/kg BW. It was proved by the absence of LD50, no change in behavior, no weight losses, and also the results of biochemical tests, such as urinary protein, SGOT, and SGPT which were still in the normal range. CONCLUSIONS: Porang flour and SPF were concluded as non-toxic food based on acute toxicity study.

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