Toxicity of ethanolic extract of Cyperus papyrus in Wistar rats
Journal name: World Journal of Pharmaceutical Research
Original article title: Acute and subacute toxicity of ethanolic extract of cyperus papyrus in wister albino rats
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Mohammed Ali Khalifa, Amna Elhassan Hamad Mohammad, Basher Mohamed Ahmed and Elsadig A. Adam
World Journal of Pharmaceutical Research:
(An ISO 9001:2015 Certified International Journal)
Full text available for: Acute and subacute toxicity of ethanolic extract of cyperus papyrus in wister albino rats
Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research
Doi: 10.20959/wjpr202112-21697
Copyright (license): WJPR: All rights reserved
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Summary of article contents:
Introduction
The research article investigates the acute and sub-acute toxicity of the ethanolic extract of Cyperus papyrus (CP) using Wistar albino rats. Traditional use of medicinal plants like CP spans various health concerns, but a lack of toxicological data necessitated this study to evaluate its safety and potential toxicity. The experiments adhered to OECD guidelines, involving both acute exposure (single high dosing) and sub-acute exposure (daily dosing for a specified period), followed by rigorous analysis of hematological, biochemical, and histological changes.
Acute Toxicity Assessment
Acute toxicity was evaluated by administering a single oral dose of 2000 mg/kg of CP extract to the rats. The study observed rats for immediate and short-term effects over a period of 14 days. Notably, there were no deaths or signs of acute toxicity, which included behavioral changes such as lethargy, salivation, or physical abnormalities. The absence of lethal outcomes indicated that the LD50 of the CP extract is greater than 2000 mg/kg, classifying the extract as non-toxic in acute exposure settings.
Sub-Acute Toxicity Findings
In the sub-acute toxicity study, rats received varying doses of the CP extract (175 mg/kg, 550 mg/kg, and 1750 mg/kg) over 28 days. Following this period, the hematological analysis reflected significant decreases in red blood cell (RBC) counts and hematocrit (HCT) levels across all doses. Additionally, biochemical tests indicated mild elevations in serum creatinine, aspartate transaminase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP). Although these parameters showed deviations from the normal range, most returned to baseline levels within a recovery phase, indicating some level of reversible effects.
Histopathological Examination Results
Histopathological evaluations of critical organs such as the liver, kidneys, heart, lungs, and spleen revealed no observable morphological changes post-exposure to the CP extract. Despite the toxicological abnormalities detected in hematological and biochemical profiles during the sub-acute study, the lack of significant changes in tissue structure and integrity supports the conclusion that the CP extract does not result in substantive organ damage, even at higher dosing levels.
Conclusion
In conclusion, the ethanolic extract of Cyperus papyrus exhibits a high degree of safety with an LD50 greater than 2000 mg/kg, categorizing it as non-toxic in acute settings. While sub-acute exposure led to some alterations in hematological and biochemical parameters, these changes were reversible by the end of the recovery phase, with no significant histopathological alterations detected. The findings suggest that, although caution may be advised for prolonged use, CP shows potential as a safe medicinal plant worthy of further pharmacological exploration.
FAQ section (important questions/answers):
What is the main focus of the study on Cyperus papyrus?
The study evaluates the acute and sub-acute oral toxicity of ethanolic extracts of Cyperus papyrus in Wistar albino rats, as no prior toxicological data existed.
What doses were used in the acute toxicity testing?
The acute toxicity testing involved a single oral dose of 2000 mg/kg body weight of the ethanolic extract administered to the rats.
What were the findings regarding acute toxicity in rats?
No deaths or signs of toxicity were observed in the rats treated with the extract at the acute dose, indicating that it is considered safe.
What were the effects observed during sub-acute toxicity testing?
Sub-acute testing revealed a decrease in red blood cells and changes in biochemical parameters, although values returned to normal in a recovery group after 14 days.
How did the biochemical parameters change with the treatment?
Significant increases in serum creatinine, total bilirubin, and liver enzymes were noted, but these values normalized in the recovery group without histopathological changes.
What were the histopathological findings after the tests?
Histopathological examinations showed no morphological changes in vital organs, including liver, kidneys, and heart, in both acute and sub-acute studies, confirming safety.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Toxicity of ethanolic extract of Cyperus papyrus in Wistar rats”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Toxicity:
Toxicity refers to the degree to which a substance can cause harm to living organisms. In the context of the study, it focuses on assessing the potential harmful effects of the ethanolic extract of Cyperus papyrus through both acute and sub-acute toxicity tests performed on Wistar Albino rats.
2) Animal:
Animals, as a plural form, denotes multiple members of the kingdom Animalia. This study involved multiple rats, which were grouped for both acute and sub-acute toxicity assessments. The use of a group provides statistical power to the results, allowing for a more reliable analysis of the extract's effects.
3) Blood:
Blood is the fluid that circulates through the body's arteries and veins carrying oxygen, nutrients, and waste products. In the context of the study, blood samples were collected for biochemical and hematological analyses post-experiment to evaluate the physiological effects of the extract on the animal subjects.
4) Table:
A table is a systematic arrangement of data, often presented in rows and columns. Tables in the study summarized significant findings related to hematological and biochemical parameters, allowing for straightforward comparison and analysis between control and experimental groups across various conditions.
5) Food:
Food refers to substances consumed to provide nutritional support for the body. The study monitored food consumption among rats to observe any changes in appetite or eating behavior following the administration of the Cyperus papyrus extract, which is vital for assessing the extract’s impact on health.
6) Observation:
Observations are detailed accounts of phenomena noted during the study. This encompasses behavioral monitoring and physiological assessments, contributing significantly to understanding the acute and sub-acute toxicity of the extract through qualitative and quantitative data.
7) Water:
Water is a vital substance for all living organisms. In this study, rats had free access to clean drinking water, which is crucial for maintaining their hydration and ensuring that experimental results are not confounded by dehydration or related health effects.
8) Cutan:
Sudan is a country in northeastern Africa where the study was conducted. The geographical context can influence the availability of plant materials, traditional uses of Cyperus papyrus, and the interpretation of results based on local medicinal practices and environmental factors affecting the study.
9) Phytochemical:
Phytochemicals are naturally occurring compounds found in plants. The study's phytochemical screening of the Cyperus papyrus extract aimed to identify beneficial compounds like flavonoids, saponins, and tannins, which might contribute to the plant's traditional medicinal properties and its safety profile.
10) Medicine:
Medicine is the science or practice of diagnosing and treating illness. In the research context, the ethanolic extract of Cyperus papyrus is evaluated for its potential therapeutic effects, which could contribute to its use in traditional and possibly modern medicinal practices.
11) Sign:
Sign refers to an indication or symptom of a condition. In toxicity studies, signs related to animal health, such as behavioral changes or physiological responses, are closely monitored as indicators of potential adverse effects of the administered substance.
12) Pharmacology:
Pharmacology is the branch of medicine that focuses on drug action and interactions within the body. The study falls under pharmacology as it investigates the toxicological effects and safety of the ethanolic extract, which could hold relevance for drug development and herbal therapy.
13) Salivation:
Salivation is the production of saliva in the mouth. Increased salivation could be a sign of toxicity or an adverse reaction in rats following administration of the Cyperus papyrus extract. Monitoring this symptom helps assess the extract's impact on normal physiological functions.
14) Flavonoid:
Flavonoids are a class of phytochemicals known for their antioxidant and anti-inflammatory properties. The presence and concentration of flavonoids in the Cyperus papyrus extract were analyzed as they may contribute to its health benefits, reinforcing its traditional use in herbal medicine.
15) Disease:
Disease denotes an abnormal condition affecting an organism. Understanding how the extract from Cyperus papyrus may interact with or affect various diseases is key to determining its potential therapeutic applications, underscoring the importance of toxicity assessments in research.
16) Study (Studying):
A study refers to a systematic investigation designed to gather data and draw conclusions. This research investigating the acute and sub-acute toxicity of Cyperus papyrus is critical for establishing safety profiles and guiding potential therapeutic use based on empirical evidence.
17) Family:
Family, in biological terms, groups organisms sharing common characteristics. Cyperus papyrus belongs to the Cyperaceae family, which informs researchers about its botanical classification, possible shared properties with other family members, and traditional uses, enhancing the understanding of the plant's benefits.
18) Cage:
Cages, plural, refers to multiple housing enclosures for animals. The use of multiple cages allows for group housing of the Wistar rats during experiments, ensuring health monitoring and controlled environmental conditions necessary for valid and repeatable research results.
19) Coma:
Coma is a state of prolonged unconsciousness. Monitoring for signs of coma during the study ensures the assessment of severe toxicity outcomes including lethargy and unresponsiveness in rats, providing insight into the potentially life-threatening effects of the substance being tested.
20) Male:
Male denotes the gender of an organism, specifically a biological sex. In this study, both male and female Wistar rats were used to ensure a comprehensive assessment of the ethanolic extract, acknowledging potential sex-based differences in response to treatment and toxicity.
21) Inflammation:
Inflammation is the body’s response to injury or infection characterized by redness, swelling, and pain. The study’s evaluation of potential histopathological changes in organs assessed if the extract could induce inflammation, which could indicate toxicity or adverse effects in treated animals.
22) Discussion:
Discussion refers to the section of a study where results are interpreted in context. This section analyzes and contextualizes findings related to the toxicity of the ethanolic extract, linking them to existing literature, and suggests implications for its potential use in medicine.
23) Container:
A container holds samples or materials during experiments. In this context, a sealed container was used for storing the ethanolic extract of Cyperus papyrus, ensuring its integrity and preventing contamination until the time of the experiment.
24) Trembling (Tremble, Trembled):
Trembling is an involuntary shaking often associated with anxiety or arising from neurological effects. The observation of trembling in the rats during the study provides critical data indicating possible adverse reactions or nervous system effects due to the tested extract.
25) Relative:
Relative refers to a comparison often made to assess significance. In the study, differences in parameters before and after exposure to the extract were measured relative to control values to determine the safety and potential toxicity of the Cyperus papyrus extract.
26) Mineral:
Mineral, in singular form, indicates any specific inorganic nutrient. The study highlights the importance of assessing the mineral content in Cyperus papyrus as it adds to the overall nutritional profile of the extract and justifies its traditional uses in health.
27) Habitat:
Habitat refers to the natural environment where a plant or animal lives. The study’s sourcing of Cyperus papyrus from its natural habitat in Sudan adds to understanding its potential variations in properties based on environmental factors and impacts on its traditional medicinal uses.
28) Ulcer:
An ulcer, as a singular, denotes a localized sore. The research highlights the relevance of Cyperus papyrus in potentially treating ulcers, prompting safety evaluations essential for validating traditional uses while considering possible side effects.
29) Edema (Oedema):
Edema refers to the swelling caused by fluid accumulation in tissues. The assessment for signs of edema in the study is important to monitor for adverse effects of the ethos of Cyperus papyrus extract, which could be indicative of toxicity.
30) Fever:
Fever is a common symptom of infection or illness characterized by an elevated body temperature. Cyperus papyrus is traditionally used to manage fever, which signifies its importance in exploring its pharmacological efficacy while ensuring patient safety through toxicity testing.
31) Death:
Death signifies the cessation of all biological functions. In toxicity studies, the monitoring of mortality rates among tested animals is crucial for determining the lethal dose (LD50) of substances, which provides insight into their safety and potential risks in therapeutic contexts.
32) House:
House, in the context of a research facility, refers to the location where animals are kept. The animal house provided controlled living conditions for the rats, facilitating consistent research conditions necessary for valid experimental outcomes.
33) Hani:
Hani refers to a contributor to the research, potentially indicating collaboration or expertise that may have influenced the study’s design, execution, or analysis. Collaboration between researchers enhances the depth of knowledge and resources, improving the overall quality of the research.
34) Bile:
Bile is a digestive fluid produced by the liver that aids in digestion, especially of fats. Monitoring for issues related to bile or related liver function in the study helps determine any toxic effects of the extract on the gastrointestinal system or liver health.
35) Hair:
Hair pertains to the fur covering the rats. Observing potential changes in hair or skin condition during the study helps assess the overall health and any adverse effects of the extract on the animals' physiological well-being.
36) Wall:
Wall could refer to structural aspects of the research facility or methods for data visualization, such as graphs or figures presented in the study. Additionally, considering physical structures in animal housing impacts how well experimental conditions can be controlled.
37) Pain:
Pain is a subjective experience usually signaling harm or discomfort. Monitoring rats for signs of pain during the study is critical to assess whether the extract elicits pain responses, thus contributing to the overall evaluation of its safety and potential for therapeutic use.
Other Science Concepts:
Discover the significance of concepts within the article: ‘Toxicity of ethanolic extract of Cyperus papyrus in Wistar rats’. Further sources in the context of Science might help you critically compare this page with similair documents:
Vital organ, Control group, Phytochemical screening, Acute toxicity, One-way ANOVA, Serum Creatinine, Hematological Parameters, Ethanolic extract, LD50, Histopathological examination, Standard Error of Mean, Sub-acute toxicity, Alkaline phosphatase, Recovery group, Distilled water, Biochemical test, Alanine Transaminase, Biochemical parameter, Morphological change, Light microscope, Blood sample, Physiological saline, OECD Guideline, Wistar albino rat.