scholarly journals ACUTE TOXICITY OF Β-KITIN EXTRACTED FROM THE SHELL OF BLUE SWIMMING CRAB (PORTUNUS PELAGICUS LINN.)

Author(s):  
RENNY AMELIA ◽  
NYI MEKAR SAPTARINI ◽  
JUTTI LEVITA ◽  
SRI ADI SUMIWI

Objective: This work aimed to study the acute toxicity of β-chitin extracted from crab shells in Bal b/c mice. Method: The acute toxicity test was performed by following the OECD guidelines. Female mice were given single or divided doses of β-chitin (maximum 24 h) with doses of 500, 1000, 2000, 4000, and 6000 mg/kg of BW. Observations were made for 14 d, including behaviour, body weight, organ weight, and histopathology of vital organs (stomach, heart, liver, kidney, and lung). Results: During 14 d, no deaths and no abnormalities in behaviour, bodyweight or organ weight were observed. Qualitative histopathological observations at the highest dose showed abnormalities of the liver and kidney compared to those of the control group. Nevertheless, the abnormalities did not affect the organ function. Conclusion: This acute toxicity study reveals that β-chitin up to a dose of 6000 mg/kg of BW is not toxic, as proved by the normal behaviour, body weight, and vital organ weight of the animals. Further chronic toxicities study is needed to confirm its safety.

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Olusayo Aderonke Shorinwa ◽  
Barizonmdu Monsi

Abstract Background The unopened buds of the fruit of Harungana madagascariensis is used in the treatment of anaemia and skin diseases in traditional medicine. Hence, this study aims to scientifically evaluate the effects of oral administration of the fruit extract of Harungana madagascariensis on haematological, biochemical and histological parameters in Wistar rats. Methods Phytochemical screening of the ethanol fruit extract of H. madagascariensis was carried out. Acute toxicity test was done using Lorke’s method. Sub-acute toxicity studies were done using 24 rats of both sexes which were randomized into four groups of six rats each. Animals in groups A, B, C were administered with the extract at doses of 250, 500 and 1000 mg/kg, respectively while group D animals were given distilled water (5 mg/kg) and served as the control group. All administrations were done through the oral route for 30 consecutive days. Body weights of the animals were taken weekly during the study. The animals were sacrificed under diethyl ether anaesthesia and blood samples collected for evaluation of haematological (red blood cell, haemoglobin, packed cell volume and white blood cell) and biochemical (alanine transferase, alanine aminotransferase, alkaline phosphatase, urea, creatinine, total cholesterol and total protein) parameters. Histological examination was conducted on the liver and kidney of the animals. Results Preliminary phytochemical screening of the extract revealed the presence of alkaloids, anthraquinones, steroidal nucleus, saponins, carbohydrates, flavonoids, and tannins. Acute toxicity test showed that the LD50 was greater than 5000 mg/kg. There was no statistically significant (P < 0.05) difference in the RBC, HB, PCV and WBC of the extract treated groups when compared to the control group. There was however, a statistically significant (P < 0.05) difference in the creatinine level of the 500 mg/kg extract –treated group and the control. There was no statistically significant (P < 0.05) difference in other biochemical parameters of the extract treated groups and the control group except for a marginal increase in the total protein in the group treated with 1000 mg/kg of the extract (60 g/L) compared with control (54.80 g/L). Histopathological examination showed alterations in the morphology of the liver and kidney in extract treated groups as compared to the control groups. Conclusion The findings have revealed that the ethanol fruit extract of H. madagascariensis should be used with caution especially during prolonged usage as the histology showed it has nephrotoxic and hepatotoxic potentials. Further studies will be done to establish the effects of the extract on white blood cells.


2016 ◽  
Vol 5 (2) ◽  
pp. 50-52
Author(s):  
B R Bhagyalakshmi ◽  
◽  
R Galib ◽  
Mukesh Nariya ◽  
PK Prajapati ◽  
...  

Introduction: Kajjali is considered as the base in maximum Rasa Yogas (Herbo-mineral formulations). Shwasakuthara Rasa (SKR) is a well-known herbo-mineral formulation indicated in different kinds of Shwasa (respiratory diseases) and Kasa (cough) having Kajjali as a base ingredient. The present study is to evaluate the acute toxicity and anti-tussive activity of SKR one prepared with Kajjali (SKR1) and another without Kajjali (SKR2) in sulphur dioxide induced cough model in albino mice. Materials and Methods: Acute toxicity study was carried as per the OECD 425 guideline in wistar female rats. Anti-tussive activity was carried out against sulphur dioxide-induced cough reflex in mice. Results: Animals did not manifest any signs of toxicity and mortality at the dose of 2000mg/kg body weight, orally. Both test drugs (32.5 mg/kg, po) showed significant reduction in cough reflexes compared with control. SKR1 showed pronounced anti-tussive activity followed by SKR2 when compared to control group. Conclusion: The presence of Kajjali in the formulation is safe on acute administration and further enhances anti-tussive activity of the formulation may be due to increasing bioavailability of Ayurvedic formulation.


2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Million Loha ◽  
Abay Mulu ◽  
Solomon M. Abay ◽  
Wondwossen Ergete ◽  
Bekesho Geleta

Plant medicine is the oldest form of health care known to mankind. Syzygium guineense is one of the many species of Ethiopian medicinal plants which has a long history of use as remedies for various ailments such as dysentery, diarrhea, and hypertension. In many countries, herbal medicines and related products are introduced into the market without safety or toxicological evaluation. The aim of this study was to investigate the histopathological effect of 80% methanol extract of S. guineense on liver and kidney and blood parameters of rats. For acute toxicity study, rats were randomly divided into three groups (n=4). The control group received distilled water, while the experimental groups received a single dose of 2000 mg/kg and 5000 mg/kg 80% methanolic extract of S. guineense leaves per oral. For subacute toxicity study, the rats were randomly divided into three groups (n=6). The control group received distilled water, while the experimental groups received 500 mg/kg and 1500 mg/kg 80% methanol extract of S. guineense leaves orally for 28 days. At the end of the experiment, blood samples were collected for hematology and clinical chemistry evaluations. Gross pathology and histopathology of liver and kidneys were assessed. In the acute toxicity study, rats treated with 2000 mg/kg and 5000 mg/kg showed no toxicological signs observed on behavior, gross pathology, and body weight of rats. In the subacute toxicity study rats have showed no significant changes on behavior, gross pathology, body weight, and hematological and biochemical parameters, whereas both experimental groups had a lower blood glucose level compared with the control group (p < 0.05). There were no significant differences in the gross and histopathology of the liver and kidneys of experimental animals in extract exposed groups and their counterpart control. The 80% methanol extract of S. guineense does not produce adverse effects in rats after acute and subacute treatment. Before marketing a S. guineense leaf based remedy, subchronic and chronic toxicity evaluations need to be done.


2010 ◽  
Vol 160-162 ◽  
pp. 1564-1568
Author(s):  
Guo Hong Shui ◽  
Dong Wei Li

The total amount of heavy metal in Ming and Qing dynasties smelted residue was analyzed. Also leaching solution’s acute toxicity of heavy metal in waste residue was discussed.The results showed that the residual quantity of heavy metal(zinc and plumbum) in residue was up to 6.97%. After several hundred years of lixiviation by rainwater, heavy metal (zinc and plumbum) which had released to circumstance was more than 1.71%.Heavy metal in ancient leaching has declined and Residue in Zn is only a very small part of the leaching, Pb leaching below the detection limit ,Cr, and Cd there was leachingonly a small amount .According to pre-test results, limiting test method was adopted to carry out acute toxicity test on waste residue’s leaching solution.The results of acute toxicity test showed that acute oral LD50(median lethal doses) in mice of waste residue’s leaching solution was bigger than 20ml/kg.bw. Mice in the experiment appeared no dead and no abnormal behavior. But mice significantly decreased bodyweight gain. At the end of the experiment, mice were anatomical examined for liver and kidney. No abnormal change was found. It was no significant difference compared with the control group. It showed that residual quantity of heavy metal in residue was high. Although reduce the leaching toxicity, but the acute toxicity harm still existed.


Author(s):  
Hamzah Alfarisi ◽  
Mawar Subangkit ◽  
Siti Sa’diah ◽  
Tutik Wresdiyati

This research aims to evaluate the safety of ethanolic extract of Acalypha hispida (A. hispida) leaves with acute toxicity test using 15 female rats strain Sprague-Dawley. A single dose of different doses of extract (2, 4, 8, and 16 g/kg body weight) was administrated orally, and theobservation was conducted for 14 days. The results revealed that the ethanolic extract of A. hispida leaves was relatively harmless (LD50 16 g/kg BW), did not affect body weight, and did not show clinical signs of toxicity during the observation periods. The parameters of blood serumbiochemistry of all extract-treated groups (alanine aminotransferase, aspartate aminotransferase, creatinine, and urea) did not change significantly  compared to the control group. The histological observation of the liver showed a significant increase in eosinophilic cytoplasm and basophilic nuclei at all doses. However, the ethanolic extract of A. hispida leaves did not significantly affect glomerulus/Bowman’s capsule ratio, glomerular cell density, and the proportion of normal cell tubule. In conclusion, the ethanolic extract of A. hispida leaves was relatively harmless with LD5016 g/kg BW and seems to be safe in low doses (2 g/kg BW).


Sains Medika ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 48 ◽  
Author(s):  
Astika Widy Utomo ◽  
Neni Susilaningsih ◽  
Desy Armalina

Introduction: The soursoup leaves extract (Annona muricata) has widely been used as traditional medicine for cancer. No studies have been conduct to investigate the safety of the extract. Objectives: The purpose of the study was to investigate the acute oral toxicity test of soursoup leaves extract (Annona muricata) on Swiss mice’s liver and kidney.Methods: Twenty four mice were divided into 4 groups. Group I was control group, while group II-IV was given soursoup leaves extract as single dose orally via sonde. The mice were obsereved until day 7 to determine the LD50 and at the end were terminated to collect the liver and kidney. The organs later were made into histopathology slides. The slides read with light microscope. The data analyzed with ANOVA and was considered significant at p<0.05.Results: All mice were alive during the 7 days observation and no mice showing the toxic spectrum after the dosing. Microscopically, no damage on the liver and kidney organ among the groups.Conclusion: The LD50 of soursoup leaves extract is more than 2000 mg/kgBW. This result indicate that the extract is practically non toxic and do not damage the liver and kidney.


Author(s):  
Michel Archange Tagne Fokam ◽  
Paul Aimé Noubissi ◽  
René Kamgang

Euphorbia scordifolia is used in Cameroon as galactagogue and in the treatment of gastrointestinal disorders. This work was undertaken to evaluate the acute and subchronic toxicities of ethanol/water extract of Euphorbia scordifolia (EWEs). Acute toxicity study was carried out by oral administration of 1, 2, 3, 4 and 5 g/kg body weight of EWEs to mice in the respective groups. Subchronic toxicity study was conducted by oral administration of the extract at daily doses of 50, 75 and 100 mg/kg body weight to another group of rats for 28 days, while rats in the control group received 10 mL/kg body weight of distilled water. Following the 28-day treatment, the rats were sacrificed for hematological, biochemical and histopathology studies. In the acute toxicity study, EWEs was found to be non-toxic at a dose of 5000 mg/kg body weight. The subchronic treatment with EWEs did not alter either the body weight gain or the food and water consumption. Biochemical analysis did not show any significant differences in any of the parameters examined in males or females. Hematological analysis showed a significant decrease (P<0.01) in white blood cells and red blood cells in males treated with 100 mg/kg bw and a significant (P<0.01) decrease in hemoglobin and hemoglobin hematocrit in all treated females. Necropsy and histopathological examination revealed some slight hepatic necrosis with the dose 100 mg/kg bw. It would be necessary to use the ethanol/water extract for short periods (<4 weeks). Thus, the plant, at least its ethanol/water extract, could be considered with a wide margin of safety for short-term oral use.


2020 ◽  
Vol 75 (5-6) ◽  
pp. 129-134 ◽  
Author(s):  
Dul Dram ◽  
Cui-Zhu Zhao ◽  
Qin-Ge Ma ◽  
Jun-Wei He ◽  
Jia-Jie Duo ◽  
...  

AbstractPotentilla anserina L. is not only a medicinal plant, but also a traditional cuisine. Hence, an acute toxicity study was performed to confirm its safety profile. Forty Kunming mice were randomly divided into two groups: control group and P. anserina L. extract group. Using the maximum dosage method, the P. anserina L. extract group was given the maximum dose within 12 h, equivalent to 345.6 g/kg crude drug. The control group was given distilled water. After administration, toxicity symptoms of mice were observed, body weight and food intake were recorded. After 14 days, blood was collected to measure biochemical parameters, autopsy was carried out to observe the changes of organs, and the vital organs were separated, weighed, and preserved for histopathological examination. The results showed that P. anserina L. extract group had no toxic symptoms. The activity, weight, and diet of mice were normal, and no abnormality was found in organ index, renal function, liver function, anatomical observation, and histopathological examination. Therefore, the maximum oral dosage (345.6 g/kg) of P. anserina L. was good safety. This study indicated that P. anserina L. had a large safety range and the clinical application was safe.


2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Hye-Sun Lim ◽  
Yun Soo Seo ◽  
Seung Mok Ryu ◽  
Byeong Cheol Moon ◽  
Goya Choi ◽  
...  

Background. Mantidis Ootheca (MO), described as the ootheca of Hierodula patellifera Serville, 1839, Tenodera angustipennis (Saussure, 1869), or Statilia maculate (Thunberg, 1784) in Korean Herbal Pharmacopoeia, is an important herbal material that has been traditionally used for treating several medical conditions including renal failure, spermatorrhea, and pediatric enuresis in Korea. Objective. The present study investigated the potential subacute toxicity of MO water extract during a 2-week repeated oral administration of doses of 0, 50, 150, or 450 mg/kg/day to C57BL/6 male mice by gavage. Methods. The following parameters were examined during the study period: mortality, clinical signs, body weight, hematology, serum biochemistry, gross findings, organ weight, and histopathology. All the mice were euthanized at the end of the treatment period. Results. No treatment-related changes in mortalities, clinical signs, body weight, gross finding, and organ weight change were detected after 14 days of oral MO extract administration. In addition, no meaningful MO extract treatment-related changes were observed in the hematological, serum biochemical, and histopathological parameters compared with the normal control group following treatment with doses of up to 450 mg/kg/day. Conclusion. Based on these findings, we concluded that treatment of mice with the water extract of MO did not result in significant toxicity and, therefore, it could be considered safe for further pharmacological studies.


2020 ◽  
Vol 9 (4) ◽  
pp. 288
Author(s):  
Ratih D. Yudhani ◽  
Riza N. Pesik ◽  
Sarah Azzahro ◽  
Adliah F. Anisa ◽  
Rizka Hendriyani

The herb frequently used as spices or remedies in the Indonesian community, with the seed as the most common part is kapulaga (Amomum cardamomum). According to earlier evidence, this possessed antibacterial, antifungal and several biological properties, reduced blood glucose and atherogenic parameter, and is developed as standardized herbal cures. However, the application of herbal medicine requires validating evidence of safety and effectiveness, including toxicity tests, particularly in clinical settings. The target organs in this comprised hepar, due to the role in several drug metabolism. This study aimed at discovering the safety profile of kapulaga seed extract based on the hepatic transaminase enzyme (SGOT and SGPT) level, by conducting an acute toxicity test in Winstar rats. Also, this was implemented with the OECD 420 Fixed-Dose Procedure, and the preliminary test employed 300 mg/kg BW dose followed by a maximum single quantity (2000 mg/kg BW) of kapulaga. The main test was executed by a separation into control and treatment groups of 5 rats each. Therefore, a single dose of 2000 mg/kg BW kapulaga seed extract was administered to the treatment group, while the control group received standard pellets and water ad libitum. The blood from orbital vein was acquired on day 14, and SGOT and SGPT were subsequently assessed by an enzymatic-photometric method. Also, this data was analyzed using an independent sample t-test, and the mean of SGOT in both groups were 116.92±22.35 and 98.02±16.38 (p=0.17), with 58.72±8.79 and 47.64±7.30 (p=0.06) as SGPT respectively. Therefore, there was no statistical difference, and no acute toxicity signs were discovered. The maximum dose was not toxic and did not result in poisonous symptoms or alter hepatic transaminase enzyme (SGOT and SGPT) in rats.Keywords: Amomum cardamomum, kapulaga, acute toxicity, SGOT, SGPT  Uji Toksisitas Akut Ekstrak Biji Kapulaga (Amomum cardamomum) Berdasarkan Kadar Enzim Transaminase Hepar Tikus WinstarAbstrakKapulaga (Amomum cardamomum), merupakan salah satu herbal Indonesia yang secara umum dimanfaatkan sebagai rempah-rempah maupun obat, terutama bagian biji. Beberapa bukti sebelumnya menunjukkan bahwa kapulaga memiliki berbagai aktivitas biologis seperti antibakteri, antijamur, dan sudah dibuktikan mampu menurunkan glukosa darah dan parameter arterogenik. Bukti tersebut mendukung pengembangan kapulaga sebagai obat herbal terstandar. Penggunaan obat herbal terutama di klinik harus didukung dengan adanya bukti keamanan maupun efektivitasnya termasuk uji toksisitas. Hepar merupakan salah satu target organ dari uji toksisitas karena perannya yang penting pada metabolisme sebagian besar obat. Penelitian ini bertujuan untuk menilai profil keamanan ekstrak biji kapulaga melalui uji toksisitas akut menggunakan tikus Winstar berdasarkan kadar enzim transaminase hepar (SGOT dan SGPT). Uji toksisitas akut berpedoman pada OECD 420 Fixed Dose Procedure. Uji pendahuluan menggunakan ekstrak biji kapulaga dosis 300 mg/kg BB dan diikuti dengan dosis tinggi 2000 mg/kg BB yang diberikan secara tunggal. Uji utama dilakukan dengan membagi tikus ke dalam kelompok kontrol dan perlakuan, masing-masing kelompok terdiri atas 5 tikus. Berdasarkan hasil uji pendahuluan, uji utama menggunakan dosis tunggal 2000 mg/kg BB untuk kelompok perlakuan, sedangkan kelompok kontrol hanya mendapatkan pelet dan air secukupnya. Pada hari ke-14, darah dari vena orbital diambil, lalu kadar SGOT dan SGPT diukur menggunakan metode enzymatic-photometric. Independent sample t-test digunakan untuk menilai data rata-rata kadar SGOT dan SGPT dari kedua kelompok. Rata-rata kadar SGOT pada kelompok kontrol dan perlakuan sebesar 116,92±22,35 dan 98,02±16,38 (p=0,17), sedangkan rata-rata SGPT sebesar 58,72±8,79 dan 47,64±7,30 (p=0,06). Perbedaan rata-rata SGOT dan SGPT pada kedua kelompok tersebut secara statistik tidak bermakna dan tidak ditemukan tanda toksisitas pada semua hewan coba. Ekstrak biji kapulaga dosis maksimal 2000 mg/kg BB tidak toksik pada hepar tikus karena tidak menimbulkan tanda toksisitas maupun mengubah enzim transaminase hati (SGOT dan SGPT). Kata kunci: Amomum cardamomum, kapulaga, toksisitas akut, SGOT, SGPT


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