scholarly journals Promotor effect of S-metolachlor generics with different hepatotoxicity in liver carcinogenesis in rats

2019 ◽  
Vol 86 (2) ◽  
pp. 5-13
Author(s):  
E.A. Bagley ◽  
N.M. Nedopytanska ◽  
V.S. Lisovska ◽  
O.V. Reshavska ◽  
L.V. Tkachenko

Metolachlor and currently its biological active isomer S–metolachlor is one of the most widely used herbicides in the world. Chronic experiments in rats have found hepatocarcinogenic effect of metolachlor, and epidemiological studies have found positive relationship between enzyme exposure to metolachlor and prevalence of liver cancer. Possibility of the influence of harmful impurities contained in technical products on the detected effects is emphasized. Objective is to study promotor effect of S–metolachlor generics with different hepatotoxicity in carcinogenesis of liver in rats induced by nitrosodiethylamine (NDEA) and analyse possibility of its realisation in human. Materials and Methods. Experiments were performed in male Wistar Han rats on hepatocarcinogenesis model “NDEA — hepatectomy”. Two specimens of S–metolachlor generics were studied; and their ratio of S/R enantiomers was 87/13 % with different hepatotoxicity. Substances were administered intragastrically in the doses of 1.5,15 and 150 mg/kg body weight for 8 weeks. Animals of the negative control group received water, and positive control — phenobarbital. Promotor effect was evaluated by the standardised parameters of the total area and number of hepatocyte foci expressing γ-glutamyl transpeptidase (GTP). Results. No clinical signs of the toxic action of S–metolachlor on the rat body induced to carcinogenesis by NDEA were found. Increase in the number and total area of γ-GTP positive foci in the liver of animals on tumorogenic dose of both specimens of S–metolachlor as well as phenobarbital was found. Mean area of focus in the liver of rats on more toxic specimen was lower. The threshold of promotor action of S–metolachlor on hepatocarcinogenesis has been established at the level of γ 15 mg/kg body weight. Analysis of literature data on the mechanism of hepatotoxic action of metolachlor allowed to make a conclusion aboutphenobarbital-like mechanism of promotor action that is realised through constitutive androstane receptor (CAR). This mechanism is species-specific for rodents; therefore, the results of epidemiological studies on the possibility of liver cancer in human cannot be confirmed experimentally. Conclusion. Tumorogenic dose of S–metolachlor generics with different degree of hepatotoxicity shows promotor effect in NDEA induced carcinogenesis in rat liver. Hepatotoxicity of S–metolachlor inhibits growth of γ-GTP positive foci. The threshold of hepatocarcinogenesis promotion has been established at the level of γ 15 mg/kg body weight. The mechanism of the observed effect is not relevant for human. Key Words: S–metolachlor, hepatocarcinogenesis initiated by nitrosodiethylamine, Wistar Han rats, γ-glutamyltranspeptidase.

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
Sarah Hussain ◽  
Mariam Kadhem

The experiment was conducted to investigate the protective effect of Petroselinum crispum leave extracted against gentamicin-induced nephrotoxicity in male rabbits by studying the body weight, clinical signs, haematological and biochemical parameters, gross lesion and histopathological changes. Twenty four rabbits male were used and divided into 4 groups. Group 1: rabbits served as a negative control, received distilled water 1 ml(orally). Group 2: rabbits served as a positive control group, received gentamicin at a dose of 80 mg/kg/day intramuscular for 15 days. Group 3: rabbits received gentamicin at a dose of 80 mg/kg/day then after one hour treated with ethanolic extract of Petroselinum crispum at dose 125 mg/kg orally for 15 days. Group 4: rabbits received gentamicin at a dose of 80 mg/kg/day then after one hour treated with ethanolic extract of Petroselinum crispum at dose 250 mg/kg orally for 15 days.The results of the gentamicin treated group( positive control group) showed clinical signs such as loss of body weight, loss of appetite and rough hair with hematuria. The body weight a significantly declined (p≤ 0.05) compared other groups. There was a significant decrease (p≤ 0.05) in WBC count, lymphocyte, GSH, SOD, CAT, and GPX levels, while it recorded a significant increase (p≤0.05) in weights of the kidneys, neutrophils, creatinine, urea, and MDA. Histological studies showed several kidney pathological changes such as pale colour, enlargement in size and weight and easy from detaching as opposed to negative control group. On the other hand, the group treated with ethanolic extractof Petroselinum crispum at dose 125 mg/kg induced improved of parameters as recorded significant increased(P ≤ 0.05) in body weight, WBC count, lymphocyte, GSH, SOD, CAT, and GPX, while significant decreased (P ≤ 0.05) in weights of the kidneys, neutrophils, creatinine, urea, and MDA compared with the positive control group whereas rabbits treated with ethanolic extract of Petroselinum crispum at dose 250 mg/kg restored the parameters and histological changes of the kidney to near normal status compared with the negative control group. These results showed that the dose-detected Petroselinum crispum extract (250mg / kg) acts as potential curative effect against gentamicin-induced nephrotoxicity in male rabbits.


2021 ◽  
Vol 4 (2) ◽  
pp. 73
Author(s):  
Putri Ayu Ika Setiyowati ◽  
Rofiatun Solekha ◽  
Sri Bintang Sahara Mahaputra Kusuma Negara ◽  
Reny Rosalina

Introduction: In humans, Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) can damage some tissue when the immune systems was decrease. Natural product from the plant often used to improve immune response against microorganism including virus. This study aimed to determine the potential antioxidant of lemongrass extract (C . nardus) with various dosage that can provide immunomodulatory effects and find an optimal dosage to be used.  Methods: The method used observasional analytic, using animal model of 30 male mice strain BALB/C, weight 25-30 gram, divided into 5 groups; the positive control group was given 0.05 mL of  0.05% CMC within 14 days, negative control group was given IMBOOST® tablet 200 mg/kg body weight (bw) within 14 days, treatment groups  were given C. nardus extract with various doses 50 mg/kg bw, 150 mg/kg bw, and 300 mg/kg bw.  In day 21 all group were injected with 0,2 ml of  pathogen bacterial (S. aureus). Blood samples were taken three times: 7th day, 14th day, and 21th day. Results: The results showed that lemongrass extract (C. nardus) was able to influence the leukocyte and lymphocytes count with significant different (p<0.05). The optimal dose is 150 mg/kg body weight. Conclusion: The antioxidant compounds that contain in the C. nardus extract have an ability to increasing the immune system in the dose 150 mg/kg bw , but in the dose 300 mg/kg bw became toxic that can make a skin injury or death in animal test.


Author(s):  
P. M. Sonkusale ◽  
Pratik N. Inglepatil ◽  
Siddharth V. Jamadade

A total of 75 day old broiler chicks were divided into three equal groups. Group A served as negative control. Group B (positive control) and C (treatment group) were intoxicated with oral administration of CCl4 @ 1 ml/kg body weight after every 3rd day during 15-28 days of age. Group C was given AV/LCP/18 @ 0.10 ml / chick / day in drinking water during 29th-42nd day of age. At the end of experiment, significantly (P is less than 0.01) higher mean body weight and lower FCR was observed in treatment group C as compared to positive control group B. Similarly, significantly (P is less than 0.05) decreased levels of SGOT, SGPT, cholesterol, triglycerides, creatinine and higher mean values of serum protein profile along with mild degenerative changes in liver and kidney of broilers in group C were observed as compared to group B indicating therapeutic efficacy of AV/LCP/18 in ameliorating the toxic effects or FLKS induced by CCl4 in commercial broilers


2012 ◽  
Vol 10 (2) ◽  
pp. 35-39
Author(s):  
AMELIA KARTIKA WIDOWATI ◽  
NUR HAFIDHA HIKMAYANI ◽  
ETI PONCORINI PAMUNGKASARI

Widowati AK, Hikmayani NH, Pamungkasari EP. 2012. Antipyretic effect of key lime (Citrus aurantifolia) leaf extract on white rats. Biofarmasi 10: 35-39. The objective of this study was to evaluate the antipyretic effect of key lime (Citrus aurantifolia L.) leaf extract on white rats (Rattus norvegicus) induced fever by using DPT vaccine. Thirty male white rats with the body weight of ±200 grams and the age of 2-3 months old were used in this study. Those rats were grouped equally into five groups, consisted of a negative control group (2 mL aquabidest), a positive control group (acetaminophen 6.3 mg/100 g of body weight), the first dose of key lime leaf extract (1.26 mg/100 g of body weight), the second dose (2.52 mg/100 g of body weight) and the third dose (5.04 mg/100 g of body weight). The measurement of rat temperature was conducted before and 2 hours after getting DPT vaccine, and every 30 minutes posttreatment until 120 minutes. Data at the 120th minute were analyzed by using One-Way Anova test. The results of One-Way Anova test showed that there were significant differences (p<0.05) among treatment groups. The results of post-hoc test analysis showed that the significant differences (p<0.05) were found between a negative control group and four other groups. There was no significant difference (p>0.05) between a positive control group and three groups of key lime leaf extract. It concluded that the key lime leaf extract has an antipyretic effect on white male rats.


2017 ◽  
Vol 3 (2) ◽  
pp. 211-215 ◽  
Author(s):  
Sudipta Talukder ◽  
Md Mehedi Hasan ◽  
Zakaria Al Noman ◽  
Yousuf Ali Sarker ◽  
Torun Kumar Paul ◽  
...  

This study evaluated the effect of ginger on the growth performance, carcass quality of broiler chickens. 20 broiler chickens were randomly selected into two treatment groups identified as T1 and T2 with a positive control and a negative control group. Each treatment contained with five birds. Birds on T1 were treated with 1% ginger extract and T2 was treated with 2% ginger extract via drinking water. Significant variations (p<0.05) existed between the control and other treatments in mean final body weight, dressed weight, daily feed intake and feed conversion ratio. At the end of experiment (35th day) for 1% ginger extraction treatment the live body weight is 1746gm (p<0.05), dressing weight 1106.4 (p<0.05) and FCR is 1.67(p<0.05). The usage of the test ingredients had a significant effect (p<0.05) on dressing percentage. Supplementation of ginger improves the performance of broilers when added at the rate of 1% of broiler ration and can be a possible alternative to antibiotic growth promoter in the feeding of broiler chicken.Asian J. Med. Biol. Res. June 2017, 3(2): 211-215


2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Abdulrahman L. Al-Malki ◽  
Haddad A. El Rabey

The antidiabetic activity of two low doses ofMoringaseed powder (50 and 100 mg/kg body weight, in the diet) on streptozotocin (STZ) induced diabetes male rats was investigated. Forty rats were divided into four groups. The diabetic positive control (STZ treated) group showed increased lipid peroxide, increased IL-6, and decreased antioxidant enzyme in the serum and kidney tissue homogenate compared with that of the negative control group. Immunoglobulins (IgA, IgG), fasting blood sugar, and glycosylated hemoglobin(HbA1c)were also increased as a result of diabetes in G2 rats. Moreover albumin was decreased, and liver enzymes andα-amylase were not affected. In addition, the renal functions and potassium and sodium levels in G2 were increased as a sign of diabetic nephropathy. Urine analysis showed also glucosuria and increased potassium, sodium, creatinine, uric acid, and albumin levels. Kidney and pancreas tissues showed also pathological alteration compared to the negative control group. Treating the diabetic rats with 50 or 100 mgMoringaseeds powder/kg body weight in G3 and G4, respectively, ameliorated the levels of all these parameters approaching the negative control values and restored the normal histology of both kidney and pancreas compared with that of the diabetic positive control group.


Author(s):  
J. Omame ◽  
A. E. Amobonye ◽  
A. Y. Kabiru

Aim: This study was aim at investigating the effect of crude petroleum ether leaf extract of Ficus platyphylla Del on Plasmodium berghei infected mice. Place and Duration of Study: This research was carried out at the department of biochemistry, Federal university of technology minna, Niger state Nigeria in 2014. Methodology: The crude plant extract of F. platyphylla was administered 72 hours at different doses post and pre infection for both the curative and prophylactic study respectively against residual infection. Mice were divided into 5 groups of 5 mice each, 3 of the groups where administered crude plants extract of F. platyphaylla at different doses (200, 400 and 600 mg/kg body weight) while the other two serve as negative and positive control group and were administered 0.5 ml and 50 mg/kg body weight respectively. Results: The extract at all doses produced significant (P<0.05) dose dependent chemo-suppressive activity with %  inhibition of 38%, 61%, 74% and 81.8% for curative studies and 36.0%, 38.5%, 49.5% and 63.4% for prophylactic studies against the parasites at doses of 200 mg/kgbw, 400 mg/kgbw, 600 mg/kgbw of the extract and 50 mg/kgbw of Artesunate. All doses of the extract increased the survival time of the infected mice compared to the negative control group that was administered 0.5 ml normal saline. The variation in the values of Packed Cell Volume (PCV) for treated group before and after extract administration was not significant at (P<0.05). The phytochemical screening of the plant extract showed the presence of tannin, saponin, flavonoids, terpenoids, steroids, anthroquinone and phenol. Conclusion: The result of this study shows that F. Platyphylla leaf extract exhibited some antiplasmodial activity that could be exploited for safe, effective and affordable antimalaria regimen.


Author(s):  
Rebecca O. Adebayo ◽  
Peterson M. S. Atiba ◽  
Gabriel G. Akunna ◽  
Olaleye O. Olabiyi

Background: Cardiotoxicity could result from chemotherapeutic drugs or other medications used in disease control such as antimalarial drugs. Chloroquine (C.Q), an antimalarial agent has also been used in the treatment of rheumatoid arthritis, giardiasis, extra-intestinal amebiasis and lupus erythematous. However, its cardiotoxic roles have been documented. Vernonia amygdalina del. (V.A) has been reported to exhibit antioxidant and cytoprotective activities. These ameliorative and protect effects have been attributed to the presence of flavonoids. There is a paucity of data to support the cardioprotective potentials of this important neutraceutical. We aimed to evaluate the possible effects of Vernonia amygdalina on Chloroquine-induced cardiotoxicity in Wistar models. Materials and Methods: Twenty-four male adult Wistar rats were randomized into four groups of six rats each: I, Control: given normal feed and water ad libitum for 28 days; II, administered 30 mg/kg body weight chloroquine orally for 28 days; III, administered 30 mg/kg body weight of chloroquine orally for 28 days and with 400mg/kg bodyweight of Vernonia amygdalina for another 14 days; VI, administered Vernonia amygdalina 400mg/kg body weight for 28 days. Antioxidant parameters [malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD)], and histology of rat cardiac muscles were examined in the different groups. Results: There was a significantly (p<0.0.05) increase in MDA level, reduced GSH level, increased SOD activity, and altered microanatomy of the rat cardiac muscle in the positive control group when compared with those of the negative control group. The changes in MDA and GSH concentration and SOD activity parameters were significantly (p<0.0.05) mitigated in rats co-treated with V.A when compared with the positive control rats. Similarly, co-administration of V.A with C.Q inhibited chloroquine induced-cardiotoxicity by reducing the altered microanatomy of the cardiac muscle of the rat. Conclusion: It was concluded that V.A ameliorated chloroquine-induced cardiotoxicity in rats via its antioxidant property.


2011 ◽  
Vol 9 (1) ◽  
pp. 7-11
Author(s):  
ELLY FAUZIAH ERMAWATI ◽  
SAMIGUN SAMIGUN ◽  
ENDANG SRI HADJANTI

Ermawati EF, Samigun, Hadjanti ES. 2011. The antipyretic effect of bitter melon (Momordica charantia) leaf in male white mice. Biofarmasi 9: 7-11. The potential of antipyretic effect of flavonoid in bitter melon (Momordica charantia L.) leaf is one of the traditional medicines that people used. This research aimed to determine the antipyretic effect of the extract of bitter melon leaf in male white mice. This experimental research was arranged as a post-test only controlled group design. Thirty Wistar furrow white mice with 2 months of ages and 100 gram in body weight were used as an animal model. Those mice were grouped equally into five groups, consisted of negative control group (2 ml water), positive control group (6.3 mg paracetamol/100 g body weight of mice/2 ml water), the first dose of the extract of bitter melon leaf (0.756 mg/100 g body weight of mice/2 ml water), the second dose of extract (1.512 mg/100 g body weight mice/2 ml water) and the third dose of extract (2.268 mg/100 g body weight mice/2 ml water). The measurement of mice temperature was conducted before and 2 hours after treated by DPT vaccine, and every 30 minutes post-treatment until 180 minutes. The result of this research was analyzed by using Anova statistical test and post-hoc test. The result of Anova statistical test showed significant differences among groups of variance, but there was no significant difference among times of variance. The result of posthoc test showed the significant differences between negative control group, positive control group and the extract of bitter melon leaf group. This research concluded that there was an antipyretic effect in the extract of bitter melon leaf in male white mice, but the effect was lower than paracetamol effect.


Author(s):  
Yohana K. A. Mbulang, Agustine E. Amsik Aloysius M. Kopon

ABSTRACTHypercholesterolemia is a high level of cholesterol in the blood ≥ 200 mg/dl. Ocimum sanctum is medical plants which have antihypercholesterolemic effects. This study aims to determine that antihypercholesterolemic activity and the best dose of roots and stems extracts of Ocimum sanctum which can provide antihypercholesterolemic effects in white rats fed a high fat diet. A total of 25 rats divided into 5 groups that is group positive control, group negative control, group roots and stems extracts of Ocimum sanctum with dose of 50 mg/kg body weight, 75 mg/kg body weight  and 100 mg/kg body weight. Cholesterol and triglyseride levels measurement using the CHOP- PAP and GPO-PAP methods. The results of statistical analysis showed that there was an antihypercholesterolemic effect from the three doses of  root and stem extracts Ocimum sanctum. The best dose as an antihypercholesterolemia  is dose III (100 mg/kg body weight). Keywords : Antihypercholesterol, total cholesterol, triglycerides. ABSTRAKHiperkolesterolemia merupakan tingginya kadar total kolesterol dalam darah ≥ 200 mg/dl. Kemangi hutan merupakan tanaman obat yang memiliki efek sebagai antihiperkolesterolemia. Penelitian ini bertujuan untuk mengetahui aktivitas antihiperkolesterolemia dan dosis yang paling baik dari ekstrak akar dan batang kemangi hutan yang dapat memberikan efek antihiperkolesterolemia pada tikus putih yang diberi pakan diet lemak tinggi. Sebanyak 25 ekor tikus dibagi 5 kelompok yaitu kelompok kontrol positif, kelompok kontrol negatif, kelompok ekstrak akar dan batang kemangi hutan dengan dosis 50 mg/kg BB, 75 mg/kg BB, dan 100 mg/kg BB. Kadar kolesterol dan trigliserida diukur menggunakan metode CHOD-PAP dan GPO-PAP. Hasil analisis statistik menunjukkan adanya efek antihiperkolesterolemia dari ketiga dosis ekstrak akar dan batang kemangi hutan. Dosis yang paling baik sebagai antihiperkolesterolemia adalah dosis III (100 mg/kg BB). Kata kunci : Antihiperkolesterolemia, kolesterol total, trigliserida.


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