Protective role of black tea and vitamin C during sub-acute toxicity of carbofuran in rats

2016 ◽  
Vol 6 (2) ◽  
pp. 0-0 ◽  
Author(s):  
D. Kumar ◽  
B. Sharma ◽  
SI Rizvi

Purpose: Carbofuran toxicity on rats was studied during sub-acute exposure. This work was undertaken to evaluate the protective effect of aqueous black tea extract and vitamin C against a rat model of oxidative stress induced by treatment with carbofuran, an organocarbamate insecticide. Materials and methods: The levels of lipid peroxidation, reduced glutathione and ascorbic acid were assessed by determining the extent of oxidative stress in the erythrocytes of rats. Results: The results clearly demonstrated that the treatment of rats with sub-acute concentration of carbofuran caused significant elevation in the levels of oxidative stress and decrease in the contents of glutathione and ascorbic acid. The introduction of black tea extract and vitamin C augmented the antioxidant defense mechanism in alleviating the carbofuran induced oxidative stress. Conclusion: The findings that the pretreatment with black tea and vitamin C can mitigate carbofuran induced toxicity lend evidence that supplementation with either black tea extract and/or vitamin C have a therapeutic potential in amelioration of oxidative stress in mammalian systems


2011 ◽  
Vol 38 (3) ◽  
pp. 635-643 ◽  
Author(s):  
Ferbal Özkan ◽  
Suna Gül Gündüz ◽  
Mehmet Berköz ◽  
Arzu Özlüer Hunt ◽  
Serap Yalın


2020 ◽  
Vol 5 (3) ◽  
pp. 43
Author(s):  
IshwarB Bagoji ◽  
GA Hadimani ◽  
RS Bulagouda ◽  
MK Qureshi ◽  
KusalK Das


2020 ◽  
Vol 10 ◽  
Author(s):  
Dhrubajyoti Sarkar ◽  
Sekhar Kumar Bose ◽  
Tania Chakraborty ◽  
Souvik Roy

Background: Diabetic nephropathy (DN), a microvascular complication of diabetes has been a significant health issue globally. However, theaflavin enriched black tea extract (BTE-TF) could restrain DN. Objective: The main objective of this exploration was to elucidate the effect of BTE-TF on DN, though the underlying mechanism remains unclear and requires further investigation. Method: The tea leaves were fermented to get black tea extract. Total phenolic content and HPLC were carried out to determine the phenolic content and theaflavin in the extract. Streptozotocin induced diabetic rats were treated with 100, 200, and 400 mg/kg/day BTE-TF extract for 12 weeks. Biochemical parameters like blood glucose, creatinine, blood urea nitrogen (BUN), triglyceride and antioxidant parameters of kidney tissue were measured. Histology, immunohistochemistry and TUNEL assay were performed to observe the effect of the extract with comparison to the standard drug (Metformin 200mg/kg/day). Result: Treated animals exhibited reduced blood glucose levels, blood urea nitrogen (BUN), creatinine, and serum triglycerides. Further, BTE-TF restored the histological alterations in the kidney. Chronic hyperglycaemia resulted in a significant increase in oxidative stress and pro-inflammatory cytokines of NF-kβ pathway. BTE-TF attenuated oxidative stress (p<0.01), inflammation (p<0.05) and apoptosis (p<0.05). Conclusion: This study suggests that BTE-TF exerts a protective role against diabetes-induced renal injury by ameliorating oxidative stress, inflammation, and apoptosis.



2021 ◽  
pp. 117996
Author(s):  
Barbara Flasz ◽  
Marta Dziewięcka ◽  
Andrzej Kędziorski ◽  
Monika Tarnawska ◽  
Jan Augustyniak ◽  
...  


2016 ◽  
pp. 135-146 ◽  
Author(s):  
Milos Matic ◽  
Marija Milosevic ◽  
Milica Paunovic ◽  
Branka Ognjanovic ◽  
Andras Stajn ◽  
...  


2009 ◽  
Vol 25 ◽  
pp. S2 ◽  
Author(s):  
A. Arora ◽  
P.K. Maurya ◽  
A. Sharma


2017 ◽  
Vol 104 (2) ◽  
pp. 139-149 ◽  
Author(s):  
M Savran ◽  
E Cicek ◽  
DK Doguc ◽  
H Asci ◽  
S Yesilot ◽  
...  

Like several other anticancer drugs, methotrexate (MTX) causes side effects, such as neuropathic pain, hepatotoxicity, and nephrotoxicity. Abnormal production of reactive oxygen species has been suspected in the pathophysiology of MTX-induced hepatorenal toxicity. Therefore, the aim of this study was to investigate the probable protective role of vitamin C (Vit C) on oxidative stress induced by MTX in the liver and kidney tissues of rats. A total of 32 rats were randomly and equally divided into four groups. The first group served as the control group. The second group received a single dose of 20 mg/kg of MTX intraperitoneally. To demonstrate our hypothesis, the third and the fourth groups received 250 mg/kg of Vit C for 3 days by oral gavage, with or without MTX treatment. At the end of the study, the liver and kidney tissues of the rats were collected and examined using histology. Both the tissues were assayed for malondialdehyde concentration and superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) activities. In hepatic and renal tissues, lipid peroxidation levels were increased, whereas SOD, CAT, and GSH-Px levels were decreased by MTX. All parameters, including CAT levels in hepatic tissue, were significantly restored after the administration of Vit C for 3 days. Similar to the biochemical findings, evidence of oxidative damage was examined in both types of tissues by histopathological examination. From the results of this study, we were able to observe that Vit C administration modulates the antioxidant redox system and reduces the renal and hepatic oxidative stress induced by MTX. Vit C can ameliorate the toxic effect of MTX in liver and kidney tissues of rat.



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