• Title/Summary/Keyword: Bile acid.

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In vivo Antimutagenicity of Dadih Probiotic Bacteria towards Trp-P1

  • Surono, Ingrid S.;Pato, Usman;Koesnandar, Koesnandar;Hosono, A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.22 no.1
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    • pp.119-123
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    • 2009
  • In vitro acid- and bile-tolerant lactic acid bacteria isolated and identified from Indonesian traditional fermented milk dadih might be considered as potential probiotic strains after further characterization with animal models, especially for their therapeutic properties. Five dadih lactic bacteria isolates each had moderate survival rate for 2 h at pH 2.0, as well as bile tolerance. The aim of this research was to identify candidate probiotic lactic bacteria among indigenous dadih lactic isolates originated from Bukit Tinggi, West Sumatra, especially their in vivo antimutagenic property. Milk cultured with Enterococcus faecium IS-27526 significantly lowered fecal mutagenicity of rats as compared to the control group, skim milk, and milk cultured with L. plantarum IS-20506. These results suggest that Enterococcus faecium IS-27526 may serve as a potential probiotic strain with its antimutagenicity.

Effects of Intravenous Administration of Taurocholate on Serum Aryl Sulfotransferase Activity in Cholestatic Rats

  • Mun Kyo-Cheol;Kim You-Hee;Kwak Chun-Sik
    • Biomedical Science Letters
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    • v.11 no.4
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    • pp.503-508
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    • 2005
  • Possible mechanisms of increased serum aryl sulfotransferase (AST) isozyme activities in cholestatic rats were studied. Serum AST-I, II and -III, IV isozymes activities were determined from the experimental rats with common bile duct ligation (CBDL) or choledocho-caval shunt (CCS). The activities of serum AST-I, II and -III, IV isozymes were found to be increased significantly in both the CCS plus taurocholic acid (TCA) injected group, and the CBDL plus TCA group than those in each control group, such as CCS or CBDL alone groups. The above results suggest that the elevated serum AST most likely due to increased hepatocyte membrane permeability caused by TCA mediated liver cell necrosis.

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Effects of Intravenous Administration of Taurocholate on Hepatic Aryl Sulfotransferase Activity in Cholestatic Rats

  • Mun Kyo-Cheol;Kim You-Hee;Kwak Chun-Sik
    • Biomedical Science Letters
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    • v.11 no.1
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    • pp.37-43
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    • 2005
  • The possible mechanisms of increased aryl sulfotransferase (AST) isozymes activities in cholestatic rat liver were studied. Hepatic AST-I, II and -III, IV 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 AST-I, II and -III, IV, and microsomal AST-III, IV as well as their Vmax values were found to be increased 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. The results suggest that TCA stimulates biosynthesis of the AST in the liver.

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The etiologies of neonatal cholestasis (신생아 담즙정체의 원인질환)

  • Ko, Jae Sung;Seo, Jeong Kee
    • Clinical and Experimental Pediatrics
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    • v.50 no.9
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    • pp.835-840
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    • 2007
  • Any infant noted to be jaundiced at 2 weeks of age should be evaluated for cholestasis with measurement of total and direct serum bilirubin. With the insight into the clinical phenotype and the genotype-phenotype correlations, it is now possible to evaluate more precisely the neonate who presents with conjugated hyperbilirubinemia. Testing should be performed for the specific treatable causes of neonatal cholestasis, specifically sepsis, galactosemia, tyrosinemia, citrin deficiency and endocrine disorders. Biliary atresia must be excluded. Low levels of serum gamma-glutamyl transferase in the presence of cholestasis should suggest progressive familial intrahepatic cholestasis type 1, 2, or arthrogryposis- renal dysfunction-cholestasis syndrome. If the serum bile acid level is low, a bile acid synthetic defect should be considered. Molecular genetic testing and molecular-based diagnostic strategies are in evolution.

Effect of Dietary Chitin and Chitosan on Cadmium Toxicity and Lipid Metabolism in Rats (Chitin과 Chitosan이 흰쥐의 Cadmium중독과 지방대사에 미치는 영향)

  • 김미경
    • Journal of Nutrition and Health
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    • v.27 no.10
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    • pp.996-1006
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    • 1994
  • This study was performed to investigate the effect of dietary chitin & chitosan on cadmium (Cd) toxicity and lipid metabolism in rats. Forty-two male rats of Sprague-Dawley strain weighing 137$\pm$2g were blocked into 6 groups according to body weight, and were raised for 4 weeks. Cadmium chloride was given at the level of 0 or 400ppm in diet and chitin and chitosan were given at the level of 0 or 4%(w/w) of diet. The results are summarized as follow. Chitosan decreased the toxicity of Cd on liver, kidney and femur and increase the Cd content of fecal excretion. Chitosan increased the lipdi & cholesterol content of fecal excretion by combining with lipid and bile acid. Chitosan decreased lipid, cholesterol and TG content in serum and liver by combining with lipid and bile acid. Chitin was less effective than chitosan in decreasing of Cd toxicity and lipid content of rat.

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Effects of Dehulled Defatted Soy Flour on Cholesterol Metabolism and Gastronitestinal Physiology in Rats (거피 탈지 콩가루 식이가 흰쥐의 콜레스테롤 대사와 소화생리에 미치는 영향)

  • 송영성
    • Journal of Nutrition and Health
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    • v.33 no.4
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    • pp.395-402
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    • 2000
  • This study was carried out to explore the hypocholesterolemic effect of dehyulled defatty soy flour and its possible mechanisms including endocrine status, cholesterol biosynthesis, and fecal excretion in rats. Animals fed casein were used as control and each phospholipid compared with casein feeding. Cholesterol concentrations in all lipoprotein fraction were significantly lower in defatted soy flour group compared with casein-fed control. Defatted soy flour feeding also significantly lowered hepatic total lipid, cholesteol and TG, and increaed fecal bile acid excretion by 270% compared with casein feeding. Defattd soy flour feeding had no significant effect on plasma thyroid hormone levels and hepatic 3-hydroxy-3-methyl glutary coenzyme A(HMG-CoA) reductase activity. However, plasma T4 concentration was slightly elevated and HMG-CoA reductase activity was suppressed in defatted soy flour group. These metabolic alterations partially explain the reduced plasma and hepatic cholesterol levels of rats fed defatted soy flour.

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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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Effect of Several Carbohydrate Sources on Lipid Metabolism in Cholesterol Fed Rats (탄수화물급원의 차이가 흰쥐 체내 지질함량에 미치는 영향)

  • 하태열
    • Journal of Nutrition and Health
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    • v.29 no.2
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    • pp.199-205
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    • 1996
  • The effects of several carbohydrate sources on plasma, liver and fecal lipid contents of rats fed diet containing sucrose, corn starch, brown rice, milled rice or wheat flour with 0.3% cholesterol for four weeks were investigated. Plasma triglyceride and total cholestrol increased significntly in sucrose group, and decreased significantly in milled rice group compared to other three groups. There were no significant differences in plasma lipid contents among corn starch, brown rice and wheat flour groups. The contents of liver triglyceride and cholesterol in brown rice group decreased significantly compared to there four groups. Fecal excretion of total cholesterol in rice and wheat flour groups was significantly higher than in sucrose and corn starch groups. The contents of fecal bile acid increased significantly in milled rice and brown rice groups compared to other three groups. Fecal bile acid content of wheat flour group was similar to those of sucrose and corn starch group. From these results, it is suggested that rice has a possibility of hypolipidemic effect in cholesterol fed rat.

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The Antiproliferative Effects of Bile Acids and Their Derivatives on HT-29 Human Colon Cancer Cells

  • Park, Sang-Eun;Yee, Su-Bog;Choi, Hye-Joung;Chung, Sang-Woon;Park, Hwa-Sun;Yoo, Young-Hyun;Kim, Nam-Deuk
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.229.1-229.1
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    • 2003
  • The anti proliferative effects of bile acids and their derivatives on HT -29 human colon cancer cells were investigated. Ursodeoxycholic acid (UDCA) and its synthetic derivatives, HS-1030 and HS-1183, and chenodeoxycholic acid (CDCA) and its synthetic derivatives, HS-1199 and HS-1200 were employed for this study. General evaluations focusing on cell cycle were conducted in HT -29 human colon adenocarcinoma cell line (p53 mutant type). (omitted)

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Hepatoprotective effect of sodium hydrosulfide on hepatic encephalopathy in rats

  • Kwon, Kyoung Wan;Nam, Yoonjin;Choi, Won Seok;Kim, Tae Wook;Kim, Geon Min;Sohn, Uy Dong
    • The Korean Journal of Physiology and Pharmacology
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    • v.23 no.4
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    • pp.263-270
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    • 2019
  • Hydrogen sulfide is well-known to exhibit anti-inflammatory and cytoprotective activities, and also has protective effects in the liver. This study aimed to examine the protective effect of hydrogen sulfide in rats with hepatic encephalopathy, which was induced by mild bile duct ligation. In this rat model, bile ducts were mildly ligated for 26 days. Rats were treated for the final 5 days with sodium hydrosulfide (NaHS). NaHS ($25{\mu}mol/kg$), 0.5% sodium carboxymethyl cellulose, or silymarin (100 mg/kg) was administered intraperitoneally once per day for 5 consecutive days. Mild bile duct ligation caused hepatotoxicity and inflammation in rats. Intraperitoneal NaHS administration reduced levels of aspartate aminotransferase and alanine aminotransferase, which are indicators of liver disease, compared to levels in the control mild bile duct ligation group. Levels of ammonia, a major causative factor of hepatic encephalopathy, were also significantly decreased. Malondialdehyde, myeloperoxidase, catalase, and tumor necrosis factor-${\alpha}$ levels were measured to confirm antioxidative and anti-inflammatory effects. N-Methyl-D-aspartic acid (NMDA) receptors with neurotoxic activity were assessed for subunit NMDA receptor subtype 2B. Based on these data, NaHS is suggested to exhibit hepatoprotective effects and guard against neurotoxicity through antioxidant and anti-inflammatory actions.