• Title/Summary/Keyword: Liver Enzymes

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Cellular Distribution and Metabolism of Ginsenosides in Rat Liver (쥐 간에서의 Ginsenoside의 세포내 분포와 대사)

  • 윤수희;이희봉
    • Journal of Ginseng Research
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    • v.17 no.2
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    • pp.114-122
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    • 1993
  • 0.5 mg of natural ginsenoside mixture and 0.8 $\mu$Ci of synthesized 14C-ginsenosides were administered orally to a rat and killed at one hour after the ginsenoside administration and the liver was fractionated into nuclear fraction, mitrochondria microsomes and cytosol fraction. Radioactivity distribu lion in subcellular fractions of the liver showed that 32o1c of total radioactivity absorbed in the liver was in cytosol fraction but a significant portion of the radioactivity was also found in mitochondria (26.6%) and microsomal fraction (18.l%). 5.8% of the total radioactivity was recovered from the nuclear fraction as well. This suggested that ginsenosides might be distributed into all subcellular fractions. Activities of mitochondrial aldehyde dehydrogenase, lactate dehydrogenase and malate dehydrogenase of the liver of rat at two hours after the ginsenoside administraion were found appreciably stimulated, suggesting that the ginsenoside concentration in the liver might be around 10-5%, since optimum concentrations for most enzyme catalyzed reactions in vitro were known to be 10-6% 10-4%. A significant portion of the radioactivity recovered from subcellular fractions of the liver was found in protein fractions, suggesting that proteins might interact with ginsenosides. Examination of protein-ginsenoside interation by gel filtration, equilibrium dialysis and amonium sulfate precipitation technique suggesting that proteins and ginsenosides do not bound covalently but weakl\ulcorner combined. When purified ginsenoside Rbl and Rgl were incubated with rat liver cytosolic enzymes for 20 min, the above ginsenosides were hydrolyzed quickly, suggesting that ginsenosides might be rapidly hydrolyzed and metabolized in the liver. It was also observed in vitro that the ginsenosides such as Rbl and Rgl were easily hydrolyzed by rat liver cytosol preparation suggesting that absorbed ginsenosides might be quickly hydrolyzed and metabolized in the liver.

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Primary hepatic hemangiosarcoma (HSA) in a Schnauzer dog

  • Kang, Min-Hee;Heo, Ra-Young;Park, Hee-Myung
    • Korean Journal of Veterinary Research
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    • v.49 no.3
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    • pp.249-252
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    • 2009
  • A 6-year-old, neutered male, Schnauzer was presented with a one year history of weight loss and exercise intolerance. Physical examination revealed abdominal distention and ecchymosis on the abdominal skin. CBC and serum chemistry profiles revealed anemia and increased serum liver enzymes. Ultrasonography revealed a large liver mass which was characterized by multiple hypoechoic lesions. Postmortem examination revealed primary hepatic hemangiosarcoma. The tumor had extended to the mesentery and diaphragm, but distant metastasis was not found. This case report describes primary hepatic hemangiosarcoma which is very rare in a dog.

Effect of Carbon Tetrachloride on the Changes of Guanase Activity in-Rats Fed Low or High Proteins Diet (食餌性 蛋白質含量에 따른 흰쥐에 사염화탄소 投與가 Guanase 活性變動에 미치는 영향)

  • Kang, Hoe-Yang
    • Journal of Environmental Health Sciences
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    • v.14 no.1
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    • pp.87-101
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    • 1988
  • The effect of hepatic injury produced by CCL, was studied on rats receiving a low protein-high carbohydrate (7% casein), standard protein (20% casein) and a high protein diet (30% casein). The rats fed low protein diet are resistant to CCl$_4$ in its effects on the liver as judged by histology, serum enzymes(guanase, ALT) and the content of hepatic protein. On the other hand, the pretreatment of hydrocortisone before injection of CCl$_4$ to the rats fed a standard diet, slightly decreased both serum ALT and guanase activities. In the pretreatment of actinomycin D, the liver and serum guanase activities were significantly decreased. It indicates that the cause of increasing serum guanase is based on the alteration of membrane permeability and the result of accelerated enzyme synthesis in liver cells of CCl$_4$ intoxicated rats.

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Effects of Intravenous Administration of Taurocholate on Hepatic Monoamine Oxidase A and B Activities in Cholestatic Rats

  • Do Jun-Young;Kwak Chun-Sik
    • Biomedical Science Letters
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    • v.10 no.4
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    • pp.421-427
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    • 2004
  • The possible mechanisms of decreased monoamine oxidase (MAO) A and B activities in cholestatic rat liver were studied. Hepatic and serum MAG activities were determined from the experimental rats with common bile duct ligation (CBDL). The Michaelis-Menten constants in these hepatic enzymes were also measured. The activities of mitochondrial MAO A and B, and mircosomal MAO B as well as their Vmax values were found to be decreased significantly in CBDL plus taurocholic acid (TCA) injected group than in the control group, such as CBDL alone groups. However, their Km values in the experimental groups did not vary. Serum MAO activity increased significantly in the CBDL plus TCA injected group than in the control group. The above results suggest that TCA represses biosynthesis of the MAO in the liver. The elevated activity of the serum MAO is believed to be caused by the increment of membrane permeability ofhepatocytes upon TCA mediated liver cell necrosis.

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Oral Vancomycin Therapy in a Child with Primary Sclerosing Cholangitis and Severe Ulcerative Colitis

  • Buness, Cynthia;Lindor, Keith D.;Miloh, Tamir
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.19 no.3
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    • pp.210-213
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    • 2016
  • Primary sclerosing cholangitis (PSC), a rare progressive liver disease characterized by cholestasis and bile duct fibrosis, has no accepted, effective therapy known to delay or arrest its progression. We report a 15 year old female patient diagnosed with PSC and moderate chronic active ulcerative colitis (UC) who achieved normalization of her liver enzymes and bile ducts, and resolution of her UC symptoms with colonic mucosal healing, after treatment with a single drug therapy of the antibiotic oral vancomycin. We postulate that the oral vancomycin may be acting both as an antibiotic by altering the intestinal microbiome and as an immunomodulator. Oral vancomycin may be a promising treatment for PSC that needs to be further studied in randomized trials.

Effects of Cervus elaphus for herb-acupuncture solution on Antioxidation in Rat‘s liver (흰쥐의 간(肝) 조직(組織)에서 녹용(鹿茸) 약침(藥針) 제제(製劑)의 항산화작용(抗酸化作用)에 관(關)한 연구(硏究))

  • Yoon, Cheol-Ho;Jeong, Ji-Cheon;Shin, Uk-Seob
    • The Journal of Korean Medicine
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    • v.17 no.2 s.32
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    • pp.191-202
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    • 1996
  • Cervus elaphus for herb-acupuncture solution(CEHAS) was tested for the effects of free radical generating enzyme and lipid peroxidation in rat's liver. In vitro, levels of lipid peroxide in tissues of liver were proportionally decreased to concentration of CEHAS. They were much more decreased. when lipid peroxidation was induced with ferrous iron $(Fe^{-2})$. Also, enzyme activities of xanthine oxidase were decreased. The ratio of type conversion of xanthine oxidase was lowered, too. But, here was not special changes on enzyme activities of aldehyde oxidase. These results suggest that CEHAS decrease the activities of free radical generating enzymes such as xanthine oxidase which form lipid peroxide.

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Studies on the Biologic Activities of the Constituents of Ailanthi Cortex Radicis(I) -Effects of Methanol Extract and its Chloroform Fraction on Epoxide Hydrolyzing System in Liver- (저근백피(樗根白皮) 성분(成分)의 생리생활(生理生活)에 관한 연구(硏究)(I) -메탄올 추출물과 클로로포름 분획이 Epoxide 분해계에 미치는 영향-)

  • Kim, Jong;Choi, Jong-Won;Kim, Hye-Kyung;Park, Soo-Wan;Lee, Chung-Kyu
    • Korean Journal of Pharmacognosy
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    • v.25 no.1
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    • pp.47-50
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    • 1994
  • For the biological survey, effects of Ailanthi Cortex Radicis, the root bark of Ailanthus altissima(Simaroubaceae) on epoxide hydrolyzing enzymes were checked. The methanolic extract and its chloroform fraction were shown to activate the liver metabolizing enzyme system including epoxide hydrolase system which was monitored by activities of transaminase, lactate dehydrogenase, alkaline phosphatase and epoxide hydrolase system in bromobenzene treated rats. But they showed no effect on glutathione S-transferase activity.

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A Severe Hepatotoxicity by Antituberculosis Drug, and its Recovery in Oriental Hospital

  • Son, Chang-Gue
    • The Journal of Korean Medicine
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    • v.37 no.2
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    • pp.119-124
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    • 2016
  • Objectives: To demonstrate a clinical course and feature of a female patient with a severe liver injury (DILI) during antituberculosis treatment for her intestinal tuberculosis, whom traditional Korean medicine completely recovered. Methods: A female patient with diagnosed as DILI by antituberculosis drugs had been treated with herbal drugs; and then the clinical outcome and biochemical parameters had been monitored. Result: A 45-year old female had taken antituberculosis drugs for about 2 months, and complained severe abdominal discomfort and dyspepsia. The RUCAM score was 10, which met the criteria for DILI (AST 584 IU/L, ALT 1212 IU/L, ALP 100 IU/L, and GGT 161 IU/L, total bilirubin 0.9 mg/dL). She had been treated with herbal drugs and acupuncture as inpatient and outpatient, and then her symptoms had been completely recovered with normalization of hepatic enzymes. Conclusion: This report provides a clinical characteristic for a severe hepatotoxicity induced by antituberculosis drugs, and showed an example of TKM-based application.

Effect of Ginseng Components (Ginsenosides and Fat Soluble Fraction) on Rat Liver Glucokinase Activity (쥐의 간 Glucokinase 활성에 미치는 인삼 성분의 영향)

  • 주충노;김선진
    • Journal of Ginseng Research
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    • v.18 no.1
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    • pp.17-24
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    • 1994
  • Effect of ginsenoside mixture, ginsenoside $Rb_1$,$Rb_2$,$Rg_1$ and the fat soluble fraction of the roots of Panax ginseng C.A. Meyer on the activity of glucokinase (GK) in vitro has been observed and found that GK activity was increased about 15c1c at the concentration of ginsenoside mixture and/or the fat soluble fraction being $10^{-7}$,$10^{-5}$%. It was also observed that glucose uptake by rat liver was increased in the presence of either ginsenoside mixture or the fat soluble fraction by perfusion technique. Ginsenoside mixture stimulated various enzymes related to glucose metabolism, however, both ginsenoside mixture and the fat soluble fraction did not stimulate GK activity as expected. Primary culture of liver cells showed that the ginsenoside mixture and the fat soluble fraction increased GK activity significantly and they stimulated the GK activity synergistically in the co-presence of insulin.

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Hepatotoxicity in an Adolescent with Black Iced Tea Overconsumption

  • Hadjipanayis, Adamos;Efstathiou, Elisavet;Papaevangelou, Vasiliki
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.22 no.4
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    • pp.387-391
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    • 2019
  • Tea is the most widely consumed beverage after water in the world. The consumption of iced tea has increased in Western countries and spiked among teenagers for enjoyment, freshening up and alertness. A teenager presented with symptoms of hepatitis. Liver ultrasound revealed sludge in the gallbladder. Laboratory investigations excluded all known causes of hepatotoxicity. Detail nutritional history revealed that the patient had been drinking 1.5-2 liters of black iced tea per day for the last three months. He was immediately advised to stop drinking any tea. Gradually all symptoms disappeared and two months after discontinuation of the tea, all liver enzymes returned to normal and the sludge in the gallbladder disappeared. This case report underlines the importance of a meticulous assessment of a child's dietary behavior when investigating a case of hepatotoxicity and raises awareness about the potential side effects of tea overconsumption.