• Title/Summary/Keyword: hepatic toxicity

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Effect of Circadian Rhythms on the Xylene Metabolizing Enzyme Activities in Rats (Xylene 대사 효소 활성에 미치는 주.야 시차의 영향)

  • 이혜자;윤종국
    • Journal of Environmental Health Sciences
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    • v.27 no.2
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    • pp.10-16
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    • 2001
  • To evaluate an effect of circadian variation on the xylene metabolizing enzyme activities, 50% m-xylene in olive oil(0.25 $m\ell$/100g body weight) was intraperitoneally administered to the rats every other day for 6 days both in the night; 24:00 and the day; 12:00. Then animals were sacrigiced at 8hr after last injection of m-xylene. Hepatic microsomal cytochrome p450 contents were more increased both in control and xylene treated rats of night phase than those of day phase. But the activity of hepatic alcohol dehydrogenase(ADH) in control of night phase showed the similar value with that in those of day phase and xylene treated rats of day phase showed an increasing tendency of hepatic ADH activity as those of night phase showing similar activity. Furthermore, control rats of night phase than those of day phase. And by xylene treatment, enzyme activities of rats of day phase were higher tendency in rats of control but those of night phase were somewhat inhibited. Besides, xylene-treated animals of night phase showed increasing tendency of urinary methylhippuric acid concentration compared with those of day phase. On the other hand, liver weight per body weight(%), hepatic lipid peroxide content and serum xanthine oxidase activity were higher in night phase. And the activities of hepatic oxygen free radical metabolizing enzymes such as xanthine oxidase, gluthathione S-transferase, and xylene-treated rats of night phase than those of day phase. In conclusion, it can be hypothesized on the basis of the results that the accumulation rate of m-xylene intermediate metabolite, i.e. m-methylbenzaldehyde in liver tissus may be higher in night phase than in day phase and it may be responsible for higher liver toxicity in bight phase than in day phase.

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Effect of Yeonsan Ogye bioactive peptides on anti-oxidant indexes in rats' liver

  • Kim, Hye Won;Shim, Jung Hun;Kim, Ki Nam
    • Journal of Nutrition and Health
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    • v.52 no.4
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    • pp.408-411
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    • 2019
  • Purpose: This study investigated the effect of bioactive Yeonsan Ogye peptides (YOPs) intake on changes in the hepatic anti-oxidant indexes in male rats. Methods: Sprague-Dawley male rats were divided into 3 groups and given a casein-based AIN-93G diet and distilled water ad libitum without any added YOPs (control), distilled water with 250 mg of YOPs (Y250), or 500 mg of YOPs (Y500) per kg of body weight for 4 weeks. YOP dose was decided as referred to in the referenced study where toxicity did not occur. The hepatic anti-oxidant indexes were determined using a commercial kit. Statistical analysis was performed using SPSS version 23.0 and are expressed as $mean{\pm}standard$ error of mean. Differences among the groups were evaluated by one-way analysis of variance followed by post hoc Duncan's multiple comparisons test. Results: There were no differences in the body weights, weight gain, food intake, food efficiency ratio, or organ weight, including liver, kidney, spleen, thymus, and epididymal fat, among all of the groups. The hepatic nitric oxide (NO) level in the Y500 group was lower than that in the control and Y250 groups, and the hepatic malondialdehyde (MDA) level was lower in the Y500 group than in the Y250 group. The differences in hepatic superoxide dismutase (SOD) and catalase (CAT) activities were not statistically significant between the groups. From these results we speculated that YOPs may have anti-oxidative abilities to regulate NO and MDA production without affecting SOD and CAT activities. Conclusion: YOPs are presumed to act as anti-oxidants in the animal or human body.

Studies on the Hypoglycemic Effect of Ginseng Polypeptide

  • Wang, B.X;Yang, M.;Jin, Y.L.;Cui, X.Y.;Wang, Y.
    • Proceedings of the Ginseng society Conference
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    • 1990.06a
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    • pp.196-200
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    • 1990
  • the ginseng polypeptide (GPP) isolated from the root of Panax ginseng C.A. Meyer was demonstrated to decrease the levels of blood sugar and hepatic glycogen when injected intravenously to rats at a doses of 50-200mg/kg without affecting blood total lipid. When mice were injected subcutaneously daily at a dose of 50 and 100mg/kg for 7 successive days, GPP was also found to decreased blood sugar and hepatic glycoge. In addition, GPP was found to decrease various experimenta hyperglycemias induced by injection of adrenaline, glucose and alloxan. GPP exhibited inhibiting effect on the glycogen enhancement induced by glucose, but strengthening effect on the glycogen decrease induced by adrenaline. When the levels of blood total lipid and liver glycogen were increased by alloxan, GPP was shown to inhibit these changes except its lowering blood sugar. the toxicity of GPP is very low, its LD50 was found to be 1.62$\pm$0.130 g/kg for iv.

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Studies on the Hypoglycemic Effect of ginseng Polypeptide (인삼의 폴리펩티드 성분의 혈당저하에 미치는 영향)

  • Wang, B.X.;Yang, M.;Jin, Y.L.;Cui, X.Y.;Wang, Y.
    • Journal of Ginseng Research
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    • v.14 no.2
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    • pp.338-342
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    • 1990
  • The ginseng Polypeptide (GPP) Isolated from the root of Panax ginseng C.A. Meyer was domonstrated to decrease the levels of blood sugar and hepatic glycogen when injected intravenoilsly to rats at a doses of 50-200 mg/kg without affecting blood total lipid. When mice were injected slibclitaneollsly daily at a dose of 50 and 100 mg/kg for 7 successive days. GPP was also found to decrease blood sligar and hepatic glycogen. In addition, GPP was found to decrease variolls experimental hypergly cemias induced by injection of adrenaline, glilcose and alloxan. GPP exhibited inhibiting effect on the glut rogen enhancement indllced by glucose, but strenthening effect on the glycogen decrease indliced by adrenaline. When the levels of blood total lipid and lilrer glycogen were increased by T alloxan. GPP was shown to inhibit these changes except its lowering blood sugar. The toxicity of GPP is very low, LD50 was found to be 1.62 $\pm$ 0.130 g/kg for iv.

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A STUDY FOR THE EFFECT OF SAM MOOL INJIN EXTRACT ON THE $Ccl_4$ INDUCED LIVER DAMAGE OF WISTER RAT (삼물균진탕투여(三物菌蔯湯投與)가 사염화탄소(四鹽化炭素) 중독간세포손상(中毒肝細胞損傷)에 미치는 영향에 관(關)한 실험적(實驗的) 연구(硏究))

  • Lim, Jung-Chan
    • The Journal of Internal Korean Medicine
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    • v.1 no.1
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    • pp.70-77
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    • 1976
  • The Sam Mool Injin extract is occasionally used as a kind of remedies for the treatment of hepatic discomfort in herb medicine. The study for the effect on the hepatic parenchymal cells, especially regenerating activity and even its toxicity have. little been done and only a very few pharmacological properties have been reported. So, an experimental study for the morphologic changes in the acute carbon tetrachloride poisoning of wister rat by administration of its extract has been performed. Male Wister rat weighing around 200gm were used in this experiment. Results were as follows; 1) In the $Ccl_4$ 0.3c.c 7day group, there is noted considerable increase of regenerating activity in the experimental group compared with non-extract treated group, in half of them. 2) Remaining all of the experimental group do not show significant difference of regenerating activity compared with control group. 3) In the group treated with Sam Mool Injin extract alone, there was noted some considerable increase of nonspecific leukocytic infiltrations compared with saline control group. This can be considered as a possibility of hepatic tissue reaction on the Sam Mool Injin extract.

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Lobaplatin Combined Floxuridine/Pirarubicin-based Transcatheter Hepatic Arterial Chemoembolization for Unresectable Primary Hepatocellular Carcinoma

  • Zhao, Chang;Wang, Xu-Jie;Wang, Song;Feng, Wei-Hua;Shi, Lei;Yu, Chun-Peng
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.5
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    • pp.2057-2060
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    • 2014
  • Purpose: To assess the effect and safety of lobaplatin combinated floxuridine /pirarubicin in transcatheter hepatic arterial chemoembolization(TACE) of unresectable primary liver cancer. Patients and Methods: TACE combined with the chemotherapy regimen was used to treat 34 unresectable primary liver cancer patients. DSA/MRI/CT/blood routine examinations were used to evaluate short term activity and toxicity after 4-5 weeks, the process being repeated if necessary. Results: Among the 34 cases, 1 (2.9%) showed a complete response, 21 (61.7%) a partial response, 8 (23.5%) stable disease, and 4 progressive disease, with a total effective rate of 67.6%. The content of alpha fetoprotein dropped by over 50% in 20 cases (58.8%). The rate of recovery was hepatalgia (88.2%), ascites (47.1%), appetite (55.9%), Performance Status(30.4%). The median follow-up time (MFT) was 281 days (63-558 days), and median progression-free survival was 118.5 days (95%, CI:88.8-148.2days). Adverse reactions (III-IV grade) were not common, with only 4 cases of vomiting and 2 cases of thrombocytopenia (III grade). Conclusions: Lobaplatin-based TACE is an effective and safe treatment for primary liver cancer.

A Study on the Reduction of Heavy Metal Biotoxicity by Aloe (중금속의 생체독성에 대한 알로에의 저감 연구)

  • 하배진
    • Journal of Environmental Science International
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    • v.7 no.1
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    • pp.46-51
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    • 1998
  • The effects of aloe on the MDA(malondialdehyde) and the blood biochemical components of heavy metal poisoning in SD rat were examined and the following results were obtained. In rat liver homogenate intoxicated with $CdCl_2$, lipidperoxide was increased each 2.37times(24h), 3.31times(72h) but lipidperoxide In aloe administration groups was lower each 47% , 64% than in heavy metal group. In rat kidney homo- genate intoxicated with $CdCl_2$, lipidperoxide was increased 1.85times(24h), 1.33times(72h) but lipidperoxide in groups was almost the same as that of normal group. Lipidperoxide of kidney homogenate was slightly decreased as time passed. Also heavy metal poisoning rats showed high levels(1.38-2.50times) of serum AST, ALT and BUN. However. the administration of aloe significantly inhibited the reduction of them. These results suggest that Cd-induced hepatic and renal injury, via increase llpidpero)Ode and release of AST, ALT and BUN. Aloe may be used to inhibit or prevent the hepatic and renal toxicity which results from the heavy metal.

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Effects of Yukmijihwang-Tang on the Hepatic Microsomal Function of Cd-poisoned Rat (육미지황탕이 카드뮴 중독된 흰쥐의 간장 약물대사 기능에 미치는 영향)

  • Suh, Eun-Sil;Lim, Jong-Pil
    • YAKHAK HOEJI
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    • v.44 no.6
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    • pp.552-557
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    • 2000
  • In order to investigate the effects of Yukmijihwang-Tang on the hepatic microsomal function of Cd-poisoned rats, 3 mg/kg of cadmium (Cd) and 500 mg/kg of Yukmijihwang-Tang extract (YJT), a herbal hepatoprotective medicine, were administered concurrently to rats for 4 weeks. The levels of protein, aniline hydroxylase (AH) and malondialdehyde (MDA) were increased in Cd-treated group. This increase was suppressed by treatment or YJT. The levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), glucose-6-phosphatase (G-6-P) and ${\delta}-aminolevulinic$ acid dehydratase (ALAD) of Cd-treated group were decreased. This decrease was inhibited by treatment of YJT. Treatment with YJT significantly protects cadmium-induced hepatotoxicity.

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The Concept of Artificial Liver Support by Using the Extracorporeal Circulation System

  • Cheon, Min-Woo
    • Transactions on Electrical and Electronic Materials
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    • v.16 no.1
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    • pp.25-28
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    • 2015
  • In this study, a basic research on artificial liver was performed for its application to people on the waiting list of liver transplant or patients with hepatic insufficiency. Artificial livers are generally classified into mechanic type, bioartificial type, and hybrid type. An extracorporeal circulation device was examined herein, which is indispensable in the application of an artificial liver, for its effectiveness in supporting the recovery of liver functions. Extracorporeal circulation system is a treatment and life-support system which sends out the patient's blood, removes toxicity by various methods, and then sends the blood back to the interior of the body. This study used an extracorporeal circulation system which enables the Plasma Perfusion by CVVH method, and applied the program of Bioateco corp. Animals with acute hepatic insufficiency were produced to apply the extracorporeal circulation device. As a result, their ammonia, bilirubin, SGOT, SGPT, and bile acid levels rose, confirming the liver function restoration in the experimental animals.

The Clinical Efficacy of Chungpyesagan-tang on Acute Stroke (급성기 중풍 환자에 대한 청폐사간탕의 임상적 효능)

  • 최동준;정우상;문상관;조기호;김영석;배형섭
    • The Journal of Korean Medicine
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    • v.23 no.4
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    • pp.9-14
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    • 2002
  • To assess the clinical efficacy of Chungpyesagan-tang on acute stroke, we prescribed this medicine to 88 acute stroke patients without thrombolytic treatment. The rate of progressive stroke type was 2.3%, remarkably lower than in previous reports. 1.1 % felt an itching sensation, and 17.0% complaxined of loose stool and diarrhea. Chungpyesagan-tang decreased Stroke-Pattern Identification and National Institute of Health Stroke Scale (NIHSS), and increased Modified Barthel Index (MBI). Thus, we could suggest that this medicine has a desirable effect to reduce the severity of stroke and improve functional recovery. As to the laboratory findings, ALT had anupward tendency and increased over normal value in 16 cases (18.2%). However, the mean serum level 2 weeks later was within the normal value and the other hepatic enzymes did not increase.

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