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Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus

This study was conducted to investigate the effect of 5% (w/v) Strobilanthes crispus crude extract on rat liver during induced hepatocarcinogenesis. Elemental analysis, was done to support this study on all the liver tissues by energy filter transmission electron microscope (EFTEM) and variable p...

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Main Author: Shreeraman, Yogespiriya
Format: Thesis
Language:English
Published: 2004
Online Access:http://psasir.upm.edu.my/id/eprint/44/1/1000548958_t_FPSK_2004_150.pdf
http://psasir.upm.edu.my/id/eprint/44/
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spelling my.upm.eprints.442015-08-06T01:53:30Z http://psasir.upm.edu.my/id/eprint/44/ Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus Shreeraman, Yogespiriya This study was conducted to investigate the effect of 5% (w/v) Strobilanthes crispus crude extract on rat liver during induced hepatocarcinogenesis. Elemental analysis, was done to support this study on all the liver tissues by energy filter transmission electron microscope (EFTEM) and variable pressure scanning electron microscope (VPSEM). Histological and gross changes of liver evaluation were conducted to observe the cellular and morphological changes during induced hepatocarcinogenesis in rats treated with S.crispus. Xenobiotics detoxification enzymes such as aniline hydroxylase (ANH) and glutathione S-transferase (GST) were assayed in liver tissues. Gross examination on liver of rats which were induced with diethylnitrosamine/acetylaminofluorene (DEN/AAF) showed the presence of nodules, haemorrhages and swelling on liver surface. The 5% (w/v) Strobilanthes crispus extract effectively reduced gross changes on liver during induced hepatocarcinogenesis. Meanwhile, histological evaluation revealed that a certain grade of inflammation or necrosis at portal and lobular region and stages of fibrosis during induced hepatocarcinogenesis was successfully reduced after the administration of Strobilanthes crispus extract. Nevertheless, supplementation of S. crispus did not fully recover the liver to normal histological feature. This could be due to the short duration of this experiment. Elemental analysis by VPSEM showed that 5% w/v Strobilanthes crispus extract contained 63.52% of carbon, 16.56% of oxygen, 0.66% of sodium, 0.08% of magnesium, 11.78% of aluminium, 0.17% of phosphorus, 1.19% of sulphur, 1.66% of chloride, 0.95% of potassium, 0.19% of iron, 0.20% of copper, 2.30% of calcium, 0.39% silicon and 0.35% of argentum. The fresh liver tissue obtained from rats administered with DEN/AAF and treated with Strobilanthes crispus extract showed higher percentage distribution of antioxidant elements such as potassium and magnesium when compared to the liver from rats induced with DEN/AAF and untreated rats, DEN/AAF administered and treated with glycyrrhizin rats, normal without treatment rats, normal with Strobilanthes crispus supplemented rats and normal with glycyrrhizin supplemented rats. To detect the antioxidant elements such as potassium, calcium, magnesium and iron at ultrastructural level, EFTEM was used. By utilizing EFTEM, the distributions of these elements were also found to be higher in cancer with S.crispus group compared to other groups. This may suggest showed that tumor cells has high uptake of these elements from S.crispus extract. Meanwhile, DEN/AAF induced rats showed an increase activity of drug/carcinogen detoxification enzymes i.e. GST and ANH. However, 5% w/v S.crispus extract effectively inhibit the activity of these enzymes in DEN/AAF induced rats. S.crispus which is rich with antioxidant elements such as potassium, magnesium, calcium and iron play important role during carcinogenesis. Thus, S.crispus can be considered as potential chemopreventive agent 2004-05 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/44/1/1000548958_t_FPSK_2004_150.pdf Shreeraman, Yogespiriya (2004) Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus. Masters thesis, Universiti Putra Malaysia.
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description This study was conducted to investigate the effect of 5% (w/v) Strobilanthes crispus crude extract on rat liver during induced hepatocarcinogenesis. Elemental analysis, was done to support this study on all the liver tissues by energy filter transmission electron microscope (EFTEM) and variable pressure scanning electron microscope (VPSEM). Histological and gross changes of liver evaluation were conducted to observe the cellular and morphological changes during induced hepatocarcinogenesis in rats treated with S.crispus. Xenobiotics detoxification enzymes such as aniline hydroxylase (ANH) and glutathione S-transferase (GST) were assayed in liver tissues. Gross examination on liver of rats which were induced with diethylnitrosamine/acetylaminofluorene (DEN/AAF) showed the presence of nodules, haemorrhages and swelling on liver surface. The 5% (w/v) Strobilanthes crispus extract effectively reduced gross changes on liver during induced hepatocarcinogenesis. Meanwhile, histological evaluation revealed that a certain grade of inflammation or necrosis at portal and lobular region and stages of fibrosis during induced hepatocarcinogenesis was successfully reduced after the administration of Strobilanthes crispus extract. Nevertheless, supplementation of S. crispus did not fully recover the liver to normal histological feature. This could be due to the short duration of this experiment. Elemental analysis by VPSEM showed that 5% w/v Strobilanthes crispus extract contained 63.52% of carbon, 16.56% of oxygen, 0.66% of sodium, 0.08% of magnesium, 11.78% of aluminium, 0.17% of phosphorus, 1.19% of sulphur, 1.66% of chloride, 0.95% of potassium, 0.19% of iron, 0.20% of copper, 2.30% of calcium, 0.39% silicon and 0.35% of argentum. The fresh liver tissue obtained from rats administered with DEN/AAF and treated with Strobilanthes crispus extract showed higher percentage distribution of antioxidant elements such as potassium and magnesium when compared to the liver from rats induced with DEN/AAF and untreated rats, DEN/AAF administered and treated with glycyrrhizin rats, normal without treatment rats, normal with Strobilanthes crispus supplemented rats and normal with glycyrrhizin supplemented rats. To detect the antioxidant elements such as potassium, calcium, magnesium and iron at ultrastructural level, EFTEM was used. By utilizing EFTEM, the distributions of these elements were also found to be higher in cancer with S.crispus group compared to other groups. This may suggest showed that tumor cells has high uptake of these elements from S.crispus extract. Meanwhile, DEN/AAF induced rats showed an increase activity of drug/carcinogen detoxification enzymes i.e. GST and ANH. However, 5% w/v S.crispus extract effectively inhibit the activity of these enzymes in DEN/AAF induced rats. S.crispus which is rich with antioxidant elements such as potassium, magnesium, calcium and iron play important role during carcinogenesis. Thus, S.crispus can be considered as potential chemopreventive agent
format Thesis
author Shreeraman, Yogespiriya
spellingShingle Shreeraman, Yogespiriya
Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
author_facet Shreeraman, Yogespiriya
author_sort Shreeraman, Yogespiriya
title Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
title_short Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
title_full Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
title_fullStr Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
title_full_unstemmed Antioxidant Elements Analysis and Enzyme Activities in Hepatocarcinogenesis Induced Rats Treated with Strobilanthes Crispus
title_sort antioxidant elements analysis and enzyme activities in hepatocarcinogenesis induced rats treated with strobilanthes crispus
publishDate 2004
url http://psasir.upm.edu.my/id/eprint/44/1/1000548958_t_FPSK_2004_150.pdf
http://psasir.upm.edu.my/id/eprint/44/
_version_ 1643821728613269504
score 13.211869

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