scholarly journals Pharmacological impact of Agaricus bisporus extract in carbon tetrachloride-induced hepatotoxicity in rats

2020 ◽  
Vol 8 (1) ◽  
pp. 107
Author(s):  
Manar Rizk ◽  
Deena El-Deberky ◽  
Faten El-Sayed ◽  
Aziza Amin ◽  
Abubakr El-Mahmoudy
Keyword(s):  
Carbon Tetrachloride ◽  
Liver Injury ◽  
Large Dose ◽  
Agaricus Bisporus ◽  
Corn Oil ◽  
Liver Homogenate ◽  
Test Group ◽  
Control Group ◽  
Albino Rats ◽  
Standard Group

Drug-induced hepatotoxicity is a frequent cause of liver injury worldwide. The present study was designed to evaluate the possible hepato-protective potential Agaricus bisporus extract (ABE; a type of mushrooms) in albino rats using Carbon tetrachloride (CCl4)-model of liver injury. Forty-two albino rats were utilized in this experiment arranged randomly in seven groups, six rats each, of different treatments. He-patic injury model was induced by administration of CCl4 (25% in corn oil) at a dose of 2.5 ml/kg, interperitoneally, twice weekly for 8 weeks (+ve control); test group rats received ABE at escalating doses of 200 or 400 mg/kg, orally, daily for 8 weeks with exposure to CCl4; standard group rats received Silymarin at dose of 100 mg/kg, orally, daily for 8 weeks along with CCl4; further 2 groups of rats received only ABE at the same dose levels; while rats of -ve control group received only the vehicles of the used drugs. Blood and liver tissue sam-ples were picked out at the end of the experimental course for different assays. Biochemical analysis revealed that ABE exhibited dose-dependent hepatoprotection indicated by almost normalized biomarkers, including, enzymatic liver function parameters, namely, AST, ALT, GGT & ALP with potential % of 93.1, 58.2, 65.2, 68.9, respectively, after ABE large dose when standardized by Silymarin; non-enzymatic parameters, namely, total protein, albumin, globulins, total bilirubin, conjugated bilirubin, unconjugated bilirubin, TAGs, Cholesterol, HDL, LDL & VLDL with potential % of 59.3, 54.5, 57.3, 81.8, 81.0, 80.0, 75.5, 90.4, 80.8, 84.5 & 78.7, respectively, after ABE large dose when standardized by Silymarin. The mechanism of the obtained hepatoprotection of ABE may be based on impeding the oxidative stress mediated by the used hepatotoxin, indicated by reduced MDA (37.9 % of Silymarin), and restored SOD, Catalase & GPx in liver homogenate with potentials of 94.9, 63.0 & 88.4 % of Silymarin, respectively. Pathological findings, both macroscopic and microscopic, were supportive to the biochemical findings, where the pathological lesions caused by CCl4 as fatty degeneration of hepatocytes with vacuolated cytoplasm, proliferated fibrous connective tissue with eosinophilic edematous fluid cells plus focal and diffuse necrotic areas and hyperplastic biliary epithelium, were ameliorated dose-dependently when ABE was administered together with CCl4. Data of the present study may suggest ABE as a good natural source for promising hepatoprotective and antioxidative remedies.

scholarly journals ERDOSTEINE: AN EFFECTIVE ANTIOXIDANT FOR PROTECTING COMPLETE FREUND’S ADJUVANT INDUCED ARTHRITIS IN RATS

2021 ◽  
pp. 71-75
Author(s):  
BANYLLA SYNMON ◽  
SANHATIDUTTA ROY ◽  
SUTAPA BISWAS MAJEE ◽  
MEGHNA PAUL ◽  
SANDIPAN DASGUPTA
Keyword(s):  
Body Weight ◽  
Test Group ◽  
The Body ◽  
Complete Freund’S Adjuvant ◽  
Control Group ◽  
Albino Rats ◽  
Standard Group ◽  
Freund’S Adjuvant ◽  
Complete Freund's Adjuvant ◽  
Freund's Adjuvant

Objective: The objective of this study was to evaluate the protective effect of Erdosteine on complete freund’s adjuvant (CFA) induced arthritic rats. Methods: Wistar Albino rats of 100–250 g were divided into five groups (n=6) and administered with 0.1 ml of CFA subcutaneously into the left hind paw except the negative control group. The standard group received methotrexate (MTX) 0.075 mg/kg body weight orally. Besides, the test groups received Erdosteine orally at a dose 10 mg/kg and 20 mg/kg bodyweight for 12 days. The changes in body weight, paw volume, hematological parameters, radiographical, and histological findings were the indicators to evaluate the efficacy of the test product. Discussion: Significant change in the body weight, paw volume, radiographical, hematological, and histological parameters were observed which supports the remarkable reduction of the arthritic development in the standard and test groups compared to the untreated group. However, the test group (Erdosteine) with the dose 20 mg/kg shows to be more potent than the test group (Erdosteine) with a dose 10 mg/kg and the standard group (MTX) to reduce the arthritic effect. Results: The test group with 20 mg/kg Erdosteine showed much better outcome than the standard group at significant (p<0.05). Therefore, Erdosteine acting as an anti-inflammatory and anti-oxidant is effective at a dose 20 mg/kg in treating the progression of rheumatoid arthritis in rats.

scholarly journals Evaluation of Cardioprotective effect of Coleus forskohlii against Isoprenaline induced myocardial infarction in rats

2014 ◽  
Vol 2 (01) ◽  
pp. 17-25 ◽  
Author(s):  
Farogh Ahsan ◽  
H. H. Siddiqui ◽  
Tarique Mahmood ◽  
Ritesh Kumar Srivastav ◽  
Ahmad Nayeem
Keyword(s):  
Normal Saline ◽  
Test Group ◽  
Heart Weight ◽  
Control Group ◽  
Albino Rats ◽  
Standard Group ◽  
Marker Enzyme ◽  
Coleus Forskohlii ◽  
Group 2 ◽  
Group 1

Coleus forskohlii is an important ancient root drug of Indian origin, commonly known as gander in indian ayurvedic system of medicine. A lot of research work has been done on Coleus forskohlii regarding various cardiovascular disorders but no work has been done to find out its cardioprotective activity. Wistar albino rats were divided into five main groups having 5 animal each: Group 1 termed as Normal control (NC) received 0.5ml of normal saline throughout experimental period and served as control. Group 2 termed as Isoprenaline group (ISO) received 0.5ml of normal saline for 28 day and received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at an interval of 24 hours. Group 3 termed as Standard group (STD) received Metoprolol (pure) (10 mg/kg/day, p.o.) for 28 day and received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at an interval of 24 hours. Group 4 termed as Test group 1 (TG 1) and Group 5 termed as Test group 2 (TG 2) received Coleus forskohlii (50 mg/kg/day, p.o.) (100 mg/kg/day, p.o.) for 28 day and received Isoprenaline (85mg/kg, s.c.) on 29th and 30th day at an interval of 24 hours respectively. The experiment was terminated on 31st day and animal were sacrificed by cervical decapitation after an overnight fast. Blood was collected for estimation of biochemical parameter and heart was dissected out for grading, heart/weight ratio and histopathological examination.the the level of marker enzyme in serum as AST, ALT, LDH, CK, Troponin-I were significantly decreased (P 0.001) in rats pretreated with Coleus forskohlii when compared to that of group which received isoprenaline alone. Further, histopathological examination showed the reduction of necrosis, edema and inflammation following Coleus forskohlii pretreatment. Based on present findings, it is concluded that Coleus forskohliil may be a potential preventive and therapeutic agent against the myocardial necrosis associated ischemic heart disease.

scholarly journals Protective potential of Cynara scolymus extract in thioacetamide model of hepatic injury in rats

Bionatura ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 1792-1802
Author(s):  
Deena El-Deberky ◽  
Manar Rizk ◽  
Faten Elsayd ◽  
Aziza Amin ◽  
Abubakr El-Mahmoudy
Keyword(s):  
Large Dose ◽  
Hepatic Injury ◽  
Liver Homogenate ◽  
Underlying Mechanism ◽  
Mononuclear Leukocytes ◽  
Albino Rats ◽  
Standard Group ◽  
Lipid Peroxidation Product ◽  
Tissue Samples ◽  
Cynara Scolymus

Hepatic injury is a worldwide health problem. This study aimed to evaluate the possible hepatoprotective potential of Artichoke (Cynara scolymus) extract (CSE) in albino rats using the thioacetamide (TAA) a model of liver injury. Acclimatized 42 rats were divided randomly into seven groups, each consists of six rats, and subjected to different treatments. Hepatic injury model was induced by administration of TAA at a dose of 100 mg per kg, intraperitoneally, twice weekly for 8 weeks (+ve control); test groups rats received CSE at doses of 100 or 200 mg/kg BW, orally, daily for 8 weeks adjunct with TAA; standard group rats received Silymarin at a dose of 100 mg per kg, orally, daily for 8 weeks adjunct with TAA; other 2 groups of rats received only CSE at the same dose levels; while -ve control rats received only the vehicles. Blood and liver tissue samples were collected at the end of the experimental course for different assessments. Results revealed that CSE exhibited dose-dependent hepatoprotection indicated by nearly normalized parameters, including enzymatic liver function parameters (AST, ALT, GGT & ALP with potential % of 94.06, 86.96, 85.93, 64.85, respectively, after large dose when standardized by Silymarin); non-enzymatic parameters (total protein, albumin, globulins, total bilirubin, conjugated bilirubin, unconjugated bilirubin, TAGs, Cholesterol, HDL, LDL & VLDL with potential % of 83.42, 85.9, 83.44, 98.1, 77.41, 91.5, 97.51, 97.46, 81.41, 88.52 & 89.4, respectively, after large dose when standardized by Silymarin). The underlying mechanism of the observed hepatoprotection of CSE was attributed to impeding the oxidative stress-mediated by TAA, indicated by reduced hepatocyte lipid peroxidation product MDA (95.96 % of Silymarin), and improved antioxidative enzymes in liver homogenate, namely, GPx, Catalase & SOD with potentials of 95.44, 87.02 & 81.48 % of Silymarin, respectively. Macroscopic and microscopic pathological pictures were supportive to the biochemical findings, where the pathological lesions caused by TAA as congestion and dilatation of central and portal veins with perivascular fibrous connective tissue proliferation admixed with few mononuclear leukocytes plus necrotic hepatocytes and hyperplastic biliary epithelium, were ameliorated dose-dependently when CSE was administered together with TAA. The present study's data may suggest CSE as a natural source for promising hepatoprotective and antioxidant drug preparations.

scholarly journals EVALUATION OF ANALGESIC EFFECT OF BACLOFEN IN ALBINO RATS IN COMPARISON WITH DICLOFENAC

2020 ◽  
pp. 46-47
Author(s):  
R. Mangala Devi M. D ◽  
Akhil M. D ◽  
S. Vasanth M.D DNB
Keyword(s):  
Analgesic Activity ◽  
Analgesic Effect ◽  
Statistical Significance ◽  
Test Group ◽  
Control Group ◽  
Albino Rats ◽  
Tail Flick ◽  
Standard Group ◽  
Group I ◽  
Animal House

Aim and objective: To evaluate the analgesic effect of baclofen in albino rats in comparison with diclofenac. Materials and Methods: Eighteen inbred male albino rats weighing about 150-200 gms were selected from central animal house. They were divided into three groups, with six rats in each. Group I served as control received normal feed and water. Group II served as standard received T. Diclofenac – 10 mg/kg (oral). Group III served as test group received T. Baclofen -- 8mg/kg (oral). The analgesic effect of baclofen was evaluated using Eddy’s hot plate method and tail-flick method and compared with diclofenac. The values obtained are expressed as mean ± SEM. Statistical analysis of differences between groups was carried out using one-way analysis of variance (ANOVA). Probability (P) value of <0.05 was taken as the level of statistical significance. Results: Baclofen showed statistically significant analgesic activity in comparison with control group and standard group (P < 0.05). Conclusion: Baclofen a GABA- B agonist has significant analgesic activity comparable to that of diclofenac (P < 0.05)

Catechism of protective potential of Areca catechu in Isoprenaline challenged Wistar rats

2021 ◽  
pp. 3067-3073
Author(s):  
Abdullah Ansari ◽  
Tarique Mahmood ◽  
Paramdeep Bagga ◽  
Farogh Ahsan ◽  
Arshiya Shamim ◽  
...  
Keyword(s):  
Normal Saline ◽  
Troponin I ◽  
Histopathological Examination ◽  
Research Work ◽  
Test Group ◽  
Control Group ◽  
Albino Rats ◽  
Standard Group ◽  
Marker Enzyme ◽  
Areca Catechu

Areca catechu is an important ancient drug commonly known as Supari in ayurvedic system of medicine. A lot of research work has been done on Areca catechu regarding various cardiovascular disorders such as Hypertension, Arrhythmia but no work has been done to find out its cardioprotective activity. Experimental procedures done on Wistar Albino rats as Normal control group (NC) received 0.5ml of normal saline throughout the study and served as control. Isoprenaline group (ISO) received 0.5ml of normal saline throughout the experimental phase and received Isoprenaline (85mg/kg, s.c.) on 14th and 15th day at a time lapse of 24 hours. Standard group (STD) received Metoprolol (pure) (10mg/kg/day, p.o.) for 13 days and received Isoprenaline (85mg/kg, s.c.) on 14th and 15th day. Test group received Areca catechu extract (100mg/kg/day, p.o.) and (200 mg/kg/day, p.o.) respectively for 13 days and Isoprenaline (85mg/kg, s.c.) on 14th and 15th day. On 16thday animals were sacrificed. The level of marker enzyme in serum as AST, ALT, CK, LDH, Troponin-I have shown significant decrease (P<0.001) in rats pre-treated with Areca catechu when compared to toxic group. Further, histopathological examination showed the reduction of necrosis, edema and inflammation following Areca catechu pre-treatment. Findings revealed that Areca catechu may be a potential preventive and therapeutic agent against the myocardial necrosis associated ischemic heart disease. Thus, the aqueous ethanolic Areca catechu seeds extract could be recommended as a potential cardioprotective drug.

scholarly journals Hepatoprotective effect of galangin on carbon tetrachloride-induced hepatotoxicity via the LKB1/AMPK pathway

2021 ◽  
Vol 19 ◽  
pp. 205873922110008
Author(s):  
Meng Chen ◽  
Xinyan Song ◽  
Jifang Jiang ◽  
Lei Xing ◽  
Pengfei Wang
Keyword(s):  
Carbon Tetrachloride ◽  
Liver Toxicity ◽  
Corn Oil ◽  
Histopathological Examination ◽  
Hepatoprotective Effect ◽  
Control Group ◽  
Group Model ◽  
Protective Effects ◽  
Model Group ◽  
Expression Levels

To investigate the protective effects of galangin on liver toxicity induced by carbon tetrachloride (CCl4) in mice. Mouse hepatotoxicity model was established by intraperitoneal injection (i.p.) of 10 ml/kg body weight CCl4 that diluted with corn oil to a proportion of 1:500 on Kunming mice. The mice were randomly divided into five groups named control group, model group, and 1, 5, and 10 mg/kg galangin group. The levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were analyzed by ELISA. Liver histopathological examination was observed via optical microscopy. The levels of superoxide dismutase (SOD), malondialdehyde (MDA), glutathione (GSH), and glutathion (GSSG) were analyzed to assess oxidative stress. Finally, western blot assay was carried out to analyse the expression levels of total AMP-activated protein kinase (AMPK), phospho-AMPK (p-AMPK), total liver kinase B1 (LKB1), and phospho-LKB1 (p-LKB1). Compared with the control group, in the model group, the levels of AST, ALT, MDA, and GSSG increased significantly ( p < 0.01); the activity of SOD and GSH decreased significantly ( p < 0.01); and the histopathological examination revealed liver necrosis. However, treatment with galangin (5 and 10 mg/kg) significantly reversed these CCl4-induced liver damage indicators. Furthermore, treatment with galangin (10 mg/kg) significantly increased the p-AMPK and p-LKB1 expression levels ( p < 0.01). This study supports the hepatoprotective effect of galangin against hepatotoxicity, perhaps occurring mainly through the LKB1/AMPK-mediated pathway.

scholarly journals Probucol Attenuates Cyclophosphamide-induced Oxidative Apoptosis, p53 and Bax Signal Expression in Rat Cardiac Tissues

2010 ◽  
Vol 3 (5) ◽  
pp. 308-316 ◽  
Author(s):  
Yousif A. Asiri
Keyword(s):  
Superoxide Dismutase ◽  
Glutathione Peroxidase ◽  
Mrna Expression ◽  
Corn Oil ◽  
Lipid Lowering ◽  
Control Group ◽  
Albino Rats ◽  
Protective Effects ◽  
Antioxidant Genes ◽  
Cardiac Tissues

Cyclophosphamide (CP) is a widely used drug in cancer chemotherapy and immunosuppression, which could cause toxicity of the normal cells due to its toxic metabolites. Probucol, a cholesterol-lowering drug, acts as potential inhibitor of DNA damage and shows to protect against doxorubicin-induced cardiomyopathy by enhancing the endogenous antioxidant system including glutathione peroxidase, catalase and superoxide dismutase. This study examined the possible protective effects of probucol, a lipid-lowering compound with strong antioxidant properties, against CPinduced cardiotoxicity. This objective could be achieved through studying the gene expression-based on the possible protective effects of probucol against CP-induced cardiac failure in rats. Adult male Wistar albino rats were assigned into four treatment groups: Animals in the first (control) and second (probucol) groups were injected intraperitoneally with corn oil and probucol (61 mg/kg/day), respectively, for two weeks. Animals in the third (CP) and fourth (probucol plus CP) groups were injected with the same doses of corn oil and probucol (61 mg/kg/day), respectively, for one week before and one week after a single dose of CP (200 mg/kg, I.P.). The p53, Bax, Bcl2 and oxidative genes signal expression were measured by real time PCR. CP-induced cardiotoxicity was clearly observed by a significant increase in serum creatine phosphokinase isoenzyme (CK-MB) (117%), lactate dehydrogenase (LDH) (64%), free (69%) and esterified cholesterol (42%) and triglyceride (69%) compared to control group. In cardiac tissues, CP significantly increases the mRNA expression levels of apoptotic genes, p53 with two-fold and Bax with 1.6-fold, and decreases the anti-apoptotic gene Bcl2 with 0.5-fold. Moreover, CP caused downregulation of antioxidant genes, glutathione peroxidase, catalase, and superoxide dismutase and increased the lipid peroxidation and decreased adenosine triphosphate (ATP) (40%) and ATP/ADP (44%) in cardiac tissues. Probucol pretreatment not only counteracted significantly the CP-induced increase in cardiac enzymes and apoptosis but also induced a significant increase in mRNA expression of antioxidant enzymes and improved ATP, ATP/ADP, glutathione (GSH) in cardiac tissues. In conclusion, data from the present study suggest that probucol prevents the development of CP-induced cardiotoxicity by a mechanism related, at least in part, to its ability to increase mRNA expression of antioxidant genes and to decrease apoptosis in cardiac tissues with the consequent improvement in mitochondrial oxidative phosphorylation and energy production.

scholarly journals Hepatoprotective effects of hydroethanolic extracts of Crocus sativus tepals, stigmas and leaves on carbon tetrachloride induced acute liver injury in rats

2021 ◽  
Vol 25 (2) ◽  
pp. 178-188
Author(s):  
Sabir Ouahhoud ◽  
◽  
Ilham Touiss ◽  
Amine Khoulati ◽  
Iliass Lahmass ◽  
...  
Keyword(s):  
Carbon Tetrachloride ◽  
Liver Injury ◽  
Total Bilirubin ◽  
Liver Weight ◽  
Crocus Sativus ◽  
Male Rats ◽  
Control Group ◽  
Distilled Water ◽  
Relative Liver Weight ◽  
Hepatoprotective Effects

Introduction: The present study investigated the hepatoprotective effects of stigmas, tepals and leaves of Crocus sativus on carbon tetrachloride (CCL4) induced liver injury in rats. Methods: Hydroethanolic extracts of Crocus sativus (stigmas, tepals and leaves) were administrated daily for 14 days by oral gavage. In the present study, 30 male rats divided into five groups were treated as 1: normal rats gavaged with distilled water; 2: intoxicated rats gavaged with distilled water and injected with CCL4; 3: rats treated with stigmas extract and injected with CCL4; 4: rats treated with tepal extract and injected with CCL4; 5: rats treated with leaf extract and injected with CCL4. Bodyweight and the relative liver weight were determined. Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), total cholesterol, triglycerides, bilirubin direct and total, total protein, albumin, urea and creatinine measured in plasma. Malondialdehyde (MDA) was quantified in liver homogenate. Results: The experimental data showed that the stigmas and tepals extracts significantly prevented weight body loss and improved the relative liver weight. They significantly protected against elevation of ALT, AST, direct bilirubin, total bilirubin, LDH, ALP, creatinine and MDA. Also, they enhanced significantly total proteins and albumin compared to the CCL4 control group. Moreover, leaves reduced ALT, AST, total bilirubin, LDH and MDA significantly. Conclusion: In conclusion, these results suggest that tepals, stigmas, and leaves extracts of Crocus sativus have hepatoprotective effects on CCL4 induced liver injury in rats.

Elevated serum β-glucuronidase reflects hepatic lysosomal fragility following toxic liver injury in rats

2008 ◽  
Vol 86 (3) ◽  
pp. 235-243 ◽  
Author(s):  
Joseph George
Keyword(s):  
Liver Injury ◽  
Hepatic Fibrosis ◽  
Liver Homogenate ◽  
Lipid Peroxides ◽  
Membrane Stability ◽  
Lysosomal Membrane ◽  
Subcellular Fractions ◽  
Albino Rats ◽  
Nuclear Fraction ◽  
Lysosomal Membrane Stability

The level of serum β-glucuronidase increases in various pathological conditions, including liver disorders. The aim of this investigation was to study the changes in liver lysosomal membrane stability during experimentally induced hepatic fibrosis that may result in the elevation of serum β-glucuronidase. Liver injury was induced by intraperitoneal injections of N-nitrosodimethylamine (NDMA) in adult male albino rats over 3 weeks. The progression of fibrosis was evaluated histopathologically as well as by monitoring liver collagen content. Lipid peroxides and β-glucuronidase levels were measured in the liver homogenate and subcellular fractions on days 0, 7, 14, and 21 after the start of NDMA administration. Serum β-glucuronidase levels were also determined. A significant increase was observed in β-glucuronidase levels in the serum, liver homogenate, and subcellular fractions, but not in the nuclear fraction on days 7, 14, and 21 after the start of NDMA administration. Lipid peroxides also increased in the liver homogenate and the lysosomal fraction. The measurement of lysosomal membrane stability revealed a maximum lysosomal fragility on day 21 during NDMA-induced fibrosis. In vitro studies showed that NDMA has no significant effect on liver lysosomal membrane permeability. The results of this investigation demonstrated that lysosomal fragility increases during NDMA-induced hepatic fibrosis, which could be attributed to increased lipid peroxidation of lysosomal membrane. In this study, we also elucidated the mechanism of increased β-glucuronidase and other lysosomal glycohydrolases in the serum during hepatic fibrosis.

Antioxidant potential of thyme extract: alleviation of N-nitrosodiethylamine-induced oxidative stress

2008 ◽  
Vol 27 (3) ◽  
pp. 215-221 ◽  
Author(s):  
P Rana ◽  
G Soni
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Test Group ◽  
Normal Diet ◽  
Lower Degree ◽  
Control Group ◽  
Albino Rats ◽  
Stress Induction ◽  
And Control

Protective role of thyme extract against N-nitrosodiethylamine (NDEA)-induced oxidative stress has been evaluated in albino rats. For this, one group of rats were fed diet supplemented with thyme extract (0.5%) and served as the test group, whereas animals of the other group fed on normal diet served as the control group. The rats were fed on respective diets for a period of 2 weeks after which stress was induced to half the animals of each group by i.p. administration of NDEA at 200 mg/kg body weight. Animals were killed 48 h post stress-induction period. Feed intake and body weight decreased significantly in both test and control groups, the effect being less in test group. Increase in osmotic fragility and in-vitro lipid peroxidation (LPO) on stress induction was of lower degree in the test group. NDEA toxicity was mainly reflected in liver as evidenced by increased activities of plasma aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase. The effect was of lower degree in test group as compared with that in the control group. Increase in urea levels observed following NDEA administration was also of lower degree in test groups. Blood glutathione (GSH) levels increased more so in test group compared with control group on stress induction. The activities of superoxide dismutase (SOD), peroxidase (Px), and catalase (CAT) activities decreased significantly on stress induction in erythrocytes. LPO increased in all the tissues through varying degree, and the increase was appreciably of lower degree in test group. The activity of SOD increased significantly in both test and control group on stress induction, whereas activities of Px and CAT decreased following NDEA treatment, and the effects were of lower degree in test group. Thus, supplementation of diet with thyme extract can improve antioxygenic potential and hence help to prevent oxidative stress.

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