• Journal of the Korean Applied Science and Technology
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• v.36 no.4
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• pp.1420-1426
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• 2019

This study was done to investigate the protective effects of ethanol extract Artemisiae vulgaris L(Av) on carbon tetrachloride(CCl₄)intoxicated rats. Male sprague Dawley rats(200~210g)was used. experimental groups were divided into normal group, CCl₄-control group, and ethanol extract CCl₄-treated group. CCl₄-treated groups were injected with CCl₄ 0.6mg/kg.b.w(i.p). The activities of Alanine aminotransferase(ALT), Aspartate aminotransferase(AST), Alkaline phosphatase(ALP), Glutamyl transpeptidase(γ-GT), Lactate dehydrogenase(LDH) in extract pretrated group was significantly decreased(p<0.05) compared to the CCl₄-control group. The contents of triglyceride, cholesterol and lipid peroxide were significantly decreased(p<0.05). whereas the contents of HDL-cholesterol and glutathione(GSH) were significantly increased(p<0.05). These results suggest that extract of Artemisiae vulgaris L(Av) has hepatoprotective effect in the CCl₄-intoxicated rats.

• Advances in Traditional Medicine
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• v.4 no.1
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• pp.28-36
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• 2004

The purpose of this study was to investigate the pharmacological effects of low-esterified pectin on carbon tetrachloride $(CCL_4)-induced$ hepatotoxicity in rats. The study included two experiments. In the first experiment the animals were given daily $CCL_4$ through gavage for 7 days and then 10, 50, or 250 mg/kg b.w. of pectin for 21 days. At the end of experiment rats were killed within 24 hours. The increased bilirubin level, enhanced alanine aminotransferase and aspartate aminotransferase activity in plasma induced by $CCL_4$ were partly normalized by pectin administration in a dose-dependent manner. The pectin treatment also resulted in significant recovery of $CCL_4-induced$ decrease of the liver glycogen content. In addition, pectin significantly improved $CCL_4-induced$ alterations of pro-oxidant and antioxidant biochemical parameters in liver and plasma compared to those of rats administered $CCL_4$. In the second experiment the animals were given daily 10, 50 or 250 mg/ kg b.w. of pectin for 21 days before a 7-day administration of $CCL_4$. Rats were killed 24 hours after the end of experiment. Pretreatment with pectin before $CCL_4$ administration resulted in significantly inhibited increase of the blood enzymatic activities of alanine and aspartate aminotransferases and bilirubin level in a dose-dependent manner. Also, preliminary administration of pectin prevented elevation of malondialdehyde and conjugated diene levels in liver and plasma as well as a reduction of glutathione content in liver of rats given $CCL_4$. These results suggest that low-esterified pectin exert healing and preventive effects on $CCL_4-induced$ hepatotoxicity in rats.

• Biomedical Science Letters
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• v.10 no.4
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• pp.447-452
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• 2004

This study was designed to investigate the effect of Codonopsis lanceolata extracts on carbon tetrachloride (CCl₄)­induced hepatotoxicity in rats fed high, medium or low fat diet. The liver weight was increased not by the level of fat in diet but by administration of CCl₄. Activities of serum aspartate aminotransferase (AST) and alkaline phosphatase (ALP) were significantly increased by CCl₄, the activities of AST and alanine aminotransferase (ALT) were significantly decreased in case of CCl₄ treatment with C. lanceolata extracts. In high fat diet with CCl₄ administration, the content of total lipid in liver was significantly increased, which was significantly decreased by the administration of C. lanceolata extracts. Administration of C. lanceolata water extracts remarkably prevented the tissue injury such as lipid degeneration, infiltration of inflanunatory cells and necrosis caused by CCl₄, but those methanol extracts did not affect histopathological changes of the liver as water extract. The data suggest that intake of C. lanceolata extracts would prevent lipid accumulation and hepatotoxicity induced by high fat diet and CCl₄ abministratim, and the water extract of C. lanceolata is supposed to be more effective than those methanol extract.

• The Korean Journal of Pharmacology
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• v.16 no.2 s.27
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• pp.31-38
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• 1980

Calvert et al. formulated the hypothesis that carbon tetrachloride ($CCl_4$) acted on the central nervous system to produce and intensify sympathetic discharge which resulted in anoxic necrosis of the liver. Recknagel suggested that the essential feature of $CCl_4$ hepatotoxicity depended on the cleavage of it to $CCl_3$(free radical) and the peroxidative decomposition of cytoplasmic membrane structural lipids. And there are many reports which show the increase of adrenergic activity in hyperthyroidism. In this paper, the influence of thyroxine on the hepatotexicity of carbon tetrachloride was investigated in mice. The results obtained were summarized as follows; 1) Hepatic total lipid and lipid peroxide contents were slightly decreased by L-sodium thyroxine injection(4mg/kg/day for 4days or 6days), but hepatic glycogen content was significantly decreased. 2) Hepatic total lipid and lipid peroxide contents and serum lactic dehydrogenase activity were significantly increased by $CCl_4$ (4 ml/kg single dose or triple dose: 4ml/kg/day for 3days), but hepatic glycogen content was significantly decreased. 3) The increase of hepatic total lipid and lipid peroxide contents and serum lactic dehydrogenase activity induced by $CCl_4$ were significantly inhitited by the pretreatment of thyroxine. 4) The decrease of hepatic glycogen induced by $CCl_4$ was not affected by the pretreatment of thyroxine.

• Biomolecules & Therapeutics
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• v.8 no.4
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• pp.293-298
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• 2000

Bergenin is a C-glucoside of 4-O-methyl gallic acid that has been isolated from the cortex of Mallotus japonicus (Euphorbiaceae). Acetylbergenin was synthesized by acetylation from bergenin to increase lipophilic and physiological activities. The therapeutic effects of bergenin and acetylbergenin were evaluated against carbon tetrachloride ($CCl_4$)-induced hepatotoxicity in rats. Bergenin and acetylbergenin were administered orally once daily for successive 5 days, after the intraperitoneal injection of a mixture 0.5 m1/kg of $CCl_4$ in olive oil (1:1). The substantially elevated serum enzymatic activities of alanine/aspartate aminotransferase, sorbitol dehydrogenase and ${\gamma}$-glutamyltransferase induced by $CCl_4$ were restored towards normalization by posttreatment with bergenin and acetylbergenin. Bergenin and acetylbergenin also significantly prevented the elevation of hepatic malondialdehyde formation and depletion of glutathione content induced by $CCl_4$ in a dose dependent fashion. In addition, the decreased activities of glutathione S-transferase and glutathione reductase were restored towards normalization. These results suggest that therapeutic effects of bergenin and acetylbergenin may be related complex mechanisms that involve prevention of lipid peroxidation and preservation of hepatic GSH. The results of this study clearly indicate that bergenin and acetylbergenin have potent hepatothrapeutic action against $CCl_4$-induced hepatotoxicity in rats. In addition, acetylbergenin 50 mgHg showed almost the same levels of hepatoprotective activity as those of bergenin 100 mgAg, indicating the fact that lipophilic acetylbergenin is more effective in the hepatoprotective action against $CCl_4$ than bergenin.

• Biomolecules & Therapeutics
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• v.7 no.1
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• pp.35-43
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• 1999

Hepatoprotective effects of Malloti cortex extract (MCE) from Mallotus japonicus against the carbon tetrachloride (CCl$_{4}$) and galactosamine (GalN) were investigated. Whereas serum aspartate aminotransferase and alanine aminotransferase levels were markedly elevated after CCl$_{4}$ and GalN administration, pretreatment and posttreatment with MCE before and after the injection of CCl$_{4}$ and GalN resulted in decreases in elevated serum aminotransferase activities. Whereas CCl$_{4}$ and GalN treatment caused 3~7 fold increases in sorbitol dehydrogenase and ${\gamma}$-glutamyltransferase activities, pretreatment and posttreatment with MCE resulted in the blocking of CCl$_{4}$ and GalN-induced liver toxicity. The hepatoprotective effect of MCE was in part due to MCE-induced elevation of hepatic glutathione levels. Pretreatment and posttreatment with MCE also reduced increased lipid peroxidation induced by CCl$_{4}$ and GalN. These results suggest that MCE may be useful for the prevention and therapy of hepatotoxic pathogenesis. It is presumed that protective and therapeutic effects of MCE due to be inducible glutathione S-transferase and glutathione reductase activities, involving in glutathione-medicated detoxication and maintainment of glutathione content, respectively.

• Journal of Veterinary Clinics
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• v.20 no.3
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• pp.389-395
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• 2003

Artemisia is a major edible vegetable in Korea and it has traditionally been used as a herbal medicine for the treatment of coughing, abdominal pain, indigestion, bleeding, jaundice, chronic liver disease and diabetes. However the biological and pharmacological actions of the herb have not been studied well. Recently it is known to possess antibacterial, antihelmintic and antifertility activities. But the effect of Artemisia capillaris extract on carbon tetrachloride($CCl_4$) induced liver damage in dogs have not been reported yet. This study was designed to investigate the effect .of Artemisia capillaris crude juice extract on $CCl_4$ induced liver damage in dogs. 30 clinically healthy dogs were divided into 2 groups: crude Artemisia capillaris juice treated group(CEC group) and carbon tetrachloride($CCl_4$) administerd group. The results are as follows: I. The degree of increase in AST activity and ALT activity in CEC group was lower than that in $CCl_4$ group and the recovery in CEC group was faster than that in $CCl_4$ group. 2. Changes of ALP concentration in CEC group were significant(P < 0.05) but changes of Total-bilirubin concentration were not significant(P < 0.05) in both groups. 3. The recovery of GGT concentration in CEC group was faster than that in $CCl_4$ group. 4. Hematological changes other than MCHC were significant(P < 0.05) in CEC group only and changes of GSH and Met-Hb concentration were significant(P < 0.05) in $CCl_4$ group.

• The Korean Journal of Physiology and Pharmacology
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• v.23 no.1
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• pp.21-28
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• 2019

Swertiamarin (STM) is an iridoid compound that is present in the Gentianaceae swertia genus. Here we investigated antiapoptotic effects of STM on carbon tetrachloride ($CCl_4$)-induced liver injury and its possible mechanisms. Adult male Sprague Dawley rats were randomly divided into a control group, an STM 200 mg/kg group, a $CCl_4$ group, a $CCl_4+STM$ 100 mg/kg group, and a $CCl_4+STM$ 200 mg/kg group. Rats in experimental groups were subcutaneously injected with 40% $CCl_4$ twice weekly for 8 weeks. STM (100 and 200 mg/kg per day) was orally given to experimental rats by gavage for 8 consecutive weeks. Hepatocyte apoptosis was determined by TUNEL assay and the expression levels of Bcl-2, Bax, and cleaved caspase-3 proteins were evaluated by western blot analysis. The expression of $TGF-{\beta}1$, collagen I, collagen III, CTGF and fibronectin mRNA were estimated by qRT-PCR. The results showed that STM significantly reduced the number of TUNEL-positive cells compared with the $CCl_4$ group. The levels of Bax and cleaved caspase-3 proteins, and $TGF-{\beta}1$, collagen I, collagen III, CTGF, and fibronectin mRNA were significantly reduced by STM compared with the $CCl_4$ group. In addition, STM markedly abrogated the repression of Bcl-2 by $CCl_4$. STM also attenuated the activation of the PI3K/Akt pathway in the liver. These results suggested that STM ameliorated $CCl_4$-induced hepatocyte apoptosis in rats.

• Journal of Veterinary Clinics
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• v.30 no.1
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• pp.12-16
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• 2013

This study was performed to investigate hepatoprotective effect of rutin on acute hepatic damage induced by carbon tetrachloride in rats. Twenty-four male Sprague-Dawley rats were randomly divided into four groups; normal control group, $CCl_4$ control group, two rutin treatment groups (rutin 200+$CCl_4$ and rutin 400+$CCl_4$). Dissolving vehicles were applied to the rats in the normal control group. The rutin was administrated to the rats in rutin 200+$CCl_4$ and rutin 400+$CCl_4$ groups at the levels of 200 mg/kg and 400 mg/kg, 3 consecutive days orally, with 24 hours interval before inoculating $CCl_4$. $CCl_4$ was intraperitoneally administered an hour after the last treatment of rutin to the rats in every group except the normal control group. The body weight of rats in $CCl_4$ control group were significantly lower than other groups (p < 0.05), but the liver weight and relative liver weight were higher than normal control group (p < 0.05). The activities of ALT, AST, ALP, GTP, LDH and the level of total bilirubin in sera of rats in $CCl_4$ control group were higher and the levels of total protein, albumin and globulin were lower than the normal group (p < 0.05). The activities of ALT, AST, ALP, GTP, LDH and the level of total bilirubin in rutin 200+$CCl_4$ and rutin 400+$CCl_4$ groups were lower than $CCl_4$ control group (p < 0.05). Therefore the pre-treatment of rutin before $CCl_4$ inoculation in rats effectively inhibited the elevation of serum ALT, AST and total bilirubin which are the parameters of hepatic damage.

• Journal of Environmental Health Sciences
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• v.16 no.1
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• pp.67-74
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• 1990

An effect of carbon tetrachloride (CCl$_{4}$) was studied on the xanthine oxidase(XOD)activity of small intestine in male rats. Concomitantly a cause of increasing small intestine XOD was focused on an effect of actinomycin D and the kinetics of partial purified XOD frdm small intestine in CCl$_{4}$ intoxicated rats. An injection of CCl$_{4}$ to the rats showed an increase of small intestine XOD. In the pretreatment of actinomycin D before injection of CCl$_{4}$ to the rats, the XOD activities of small intestine were significantly decreased. In the partial purified enzyme preparation, the small intestine XOD in CCl$_{4}$ intoxicated rats showed the more increased Km and Vmax value with xanthine as substrate than that of control group.