Rat but not human interferons suppress hepatic oxidative drug metabolism in rats.

Abstract:

:An animal model suitable for in vivo studies of interferon-mediated suppression of hepatic oxidative drug metabolism has been developed. Rats were injected with either recombinant human interferon alpha A, recombinant human interferon gamma, recombinant rat interferon gamma, or vehicle and experiments were performed 24 h later. In some animals theophylline elimination was determined twice (10 days apart), once after interferon and once after vehicle. Theophylline clearance was also determined in the isolated perfused rat liver after pretreatment of animals with interferon or vehicle. Pretreatment of animals with rat interferon gamma significantly reduced theophylline clearance in the intact rat but neither human interferon alpha A nor human interferon gamma altered theophylline elimination in vivo. Similar results were observed in the isolated perfused rat liver. We then examined whether the effects of interferon on hepatic drug metabolism were generalized or confined to individual cytochrome P450 isozymes; androstenedione hydroxylation pathways were used as catalytic probes for individual cytochrome P450 isozymes. Rat interferon gamma (but not human interferon alpha A) decreased levels of total hepatic microsomal P450 and reduced androstenedione 16 beta-hydroxylation. The formation of three other hydroxylated androstenedione metabolites appeared reduced to a similar extent, although these changes were not significant. It is concluded that autologous but not heterologous interferons impair oxidative drug metabolism in the rat. The reduction of hepatic P450 produced by interferon may result from the suppression of multiple isozymes.

journal_name

Gastroenterology

journal_title

Gastroenterology

authors

Craig PI,Williams SJ,Cantrill E,Farrell GC

doi

10.1016/0016-5085(89)91509-6

subject

Has Abstract

pub_date

1989-10-01 00:00:00

pages

999-1004

issue

4

eissn

0016-5085

issn

1528-0012

pii

0016-5085(89)91509-6

journal_volume

97

pub_type

杂志文章
  • Giardiasis with total villous atrophy.

    abstract::A patient who developed symptomatic giardiasis after a tour of the Soviet Union is presented. The diagnosis was established by duodenal aspiration. A small intestinal biopsy revealed total villous atrophy in the absence of celiac sprue or a gastrointestinal immunodeficiency syndrome, a finding not previously described...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Levinson JD,Nastro LJ

    更新日期:1978-02-01 00:00:00

  • Vasodilation, fibrinolysis, and thrombolysis with intraarterial infusion of urokinase in the canine superior mesenteric artery.

    abstract::Urokinase, the plasminogen activator from human urine, produces a dose-dependent increase in blood flow in the canine superior mesenteric artery when injected intraarterially at doses from 10(-1) to 10(3) units kg-1. This vasodilation persists despite blockade of beta-adrenergic and histamine H1 and H2 receptors as we...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Gurll N,Zinner MJ,Turtinen L,Reynolds DG

    更新日期:1978-09-01 00:00:00

  • Chronic enteric salmonella infection in mice leads to severe and persistent intestinal fibrosis.

    abstract:BACKGROUND & AIMS:Intestinal fibrosis and stricture formation are serious complications of Crohn's disease, often requiring surgical intervention. Unfortunately, the mechanisms underlying intestinal fibrosis development are poorly understood, in part because of the lack of relevant animal models. Here, we present a nov...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2007.12.043

    authors: Grassl GA,Valdez Y,Bergstrom KS,Vallance BA,Finlay BB

    更新日期:2008-03-01 00:00:00

  • Myoelectric activity and intraluminal pressure of the canine ileocolonic sphincter.

    abstract::We constructed ileocolonic loops of distal ileum, ileocolonic sphincter, and proximal colon in 5 dogs; neuromuscular continuity was maintained between loop and intact bowel by a bridge of tunica muscularis. To study ileocolonic sphincter function, we recorded myoelectric activity from subserosal electrodes and intralu...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Quigley EM,Phillips SF,Dent J,Taylor BM

    更新日期:1983-11-01 00:00:00

  • Hyponatremia and arginine vasopressin secretion in patients with refractory hepatic ascites undergoing peritoneovenous shunting.

    abstract::Seven patients with persistent hyponatremia but normal or elevated serum arginine vasopressin levels and refractory ascites undergoing peritoneovenous shunting were studied in a Metabolic Unit on a 20 mEq sodium 1200 ml fluid-restricted diet to elucidate the mechanism of this response. The intravascular volume expansi...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Reznick RK,Langer B,Taylor BR,Seif S,Blendis LM

    更新日期:1983-04-01 00:00:00

  • Efficacy and safety of a combination of chenodeoxycholic acid and ursodeoxycholic acid for gallstone dissolution: a comparison with ursodeoxycholic acid alone.

    abstract::Chenodeoxycholic acid (CDC) and ursodeoxycholic acid (UDC) have distinct physicochemical and metabolic properties which, being complementary, should favor more rapid removal of cholesterol from gallstones when both bile acids are administered together. To see if the combination is more effective and well tolerated, we...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章

    doi:10.1016/0016-5085(89)90784-1

    authors: Podda M,Zuin M,Battezzati PM,Ghezzi C,de Fazio C,Dioguardi ML

    更新日期:1989-01-01 00:00:00

  • Manganese deposition in basal ganglia structures results from both portal-systemic shunting and liver dysfunction.

    abstract:BACKGROUND & AIMS:Manganese (Mn) deposition could be responsible for the T(1)-weighted magnetic resonance signal hyperintensities observed in cirrhotic patients. These experiments were designed to assess the regional specificity of the Mn increases as well as their relationship to portal-systemic shunting or hepatobili...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(99)70457-9

    authors: Rose C,Butterworth RF,Zayed J,Normandin L,Todd K,Michalak A,Spahr L,Huet PM,Pomier-Layrargues G

    更新日期:1999-09-01 00:00:00

  • Etiological spectrum of post-transfusion hepatitis.

    abstract::Frequent occurrence of post-transfusion hepatitis continues despite screening for Australia antigen in blood before transfusion and elimination of commercial donor sources. The majority of these cases appears unrelated to hepatitis B virus. Preoperative, acute, and convalescent serra were screened for evidence of hepa...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Knodell RG,Conrad ME,Dienstag JL,Bell CJ

    更新日期:1975-12-01 00:00:00

  • Role of capsaicin-sensitive afferent neurons in alkaline secretory response to luminal acid in the rat duodenum.

    abstract::The role of capsaicin-sensitive afferent neurons in acid-induced HCO3- secretion was investigated in the duodenum of anesthetized rats. The proximal duodenum was perfused with saline (pH 4.5), the pH of perfusate and the transmucosal potential differences were continuously monitored, and HCO3- output was determined by...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(91)90721-v

    authors: Takeuchi K,Matsumoto J,Ueshima K,Okabe S

    更新日期:1991-10-01 00:00:00

  • The carbohydrate composition of mucin in colonic cancer.

    abstract::Mucins synthesized in colonic cancer are known to be different from those in the normal colon; however, the biochemical differences between these mucins have not been defined. We have purified mucins from samples of nonneoplastic (normal) human colon and colon cancer and found that the carbohydrate content of the canc...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(90)90330-4

    authors: Boland CR,Deshmukh GD

    更新日期:1990-05-01 00:00:00

  • Metabolomic Identification of Subtypes of Nonalcoholic Steatohepatitis.

    abstract:BACKGROUND & AIMS:Nonalcoholic fatty liver disease (NAFLD) is a consequence of defects in diverse metabolic pathways that involve hepatic accumulation of triglycerides. Features of these aberrations might determine whether NAFLD progresses to nonalcoholic steatohepatitis (NASH). We investigated whether the diverse defe...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2017.01.015

    authors: Alonso C,Fernández-Ramos D,Varela-Rey M,Martínez-Arranz I,Navasa N,Van Liempd SM,Lavín Trueba JL,Mayo R,Ilisso CP,de Juan VG,Iruarrizaga-Lejarreta M,delaCruz-Villar L,Mincholé I,Robinson A,Crespo J,Martín-Duce A,Romero-Gó

    更新日期:2017-05-01 00:00:00

  • Application of the crypt-isolation technique to flow-cytometric analysis of DNA content in colorectal neoplasms.

    abstract:BACKGROUND/AIMS:Conventional flow-cytometric analysis of colorectal tumor DNA content includes both tumor and stromal cell DNA. To improve the method, we evaluated the DNA content of purified epithelial cells using the crypt-isolation technique. METHODS:Normal and neoplastic crypts were isolated from fresh resected co...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(94)94651-5

    authors: Nakamura S,Goto J,Kitayama M,Kino I

    更新日期:1994-01-01 00:00:00

  • Rotaviruses: from pathogenesis to vaccination.

    abstract::Rotaviruses cause life-threatening gastroenteritis in children worldwide; the enormous disease burden has focused efforts to develop vaccines and led to the discovery of novel mechanisms of gastrointestinal virus pathogenesis and host responses to infection. Two live-attenuated vaccines for gastroenteritis (Rotateq [M...

    journal_title:Gastroenterology

    pub_type: 杂志文章,评审

    doi:10.1053/j.gastro.2009.02.076

    authors: Greenberg HB,Estes MK

    更新日期:2009-05-01 00:00:00

  • Direct transhepatic measurement of portal vein pressure using a thin needle. Comparison with wedged hepatic vein pressure.

    abstract::A technique for the direct measurement of portal vein pressure in fully conscious patients is described. This uses a percutaneous transhepatic approach with a thin Chiba needle and is shown to be simple and safe. The technique has been applied to 123 patients with a variety of liver disorders and the pressure measurem...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Boyer TD,Triger DR,Horisawa M,Redeker AG,Reynolds TB

    更新日期:1977-04-01 00:00:00

  • Alternative Splice Forms of CYLD Mediate Ubiquitination of SMAD7 to Prevent TGFB Signaling and Promote Colitis.

    abstract:BACKGROUND & AIMS:The CYLD lysine 63 deubiquitinase gene (CYLD) encodes tumor suppressor protein that is mutated in familial cylindromatosus, and variants have been associated with Crohn disease (CD). Splice forms of CYLD that lack exons 7 and 8 regulate transcription factors and functions of immune cells. We examined ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2018.10.023

    authors: Tang Y,Reissig S,Glasmacher E,Regen T,Wanke F,Nikolaev A,Gerlach K,Popp V,Karram K,Fantini MC,Schattenberg JM,Galle PR,Neurath MF,Weigmann B,Kurschus FC,Hövelmeyer N,Waisman A

    更新日期:2019-02-01 00:00:00

  • Microflora modulates endocrine cells in the gastrointestinal mucosa of the rat.

    abstract:BACKGROUND/AIMS:Gastrointestinal peptides and biogenic monoamines participate in the regulation of gastrointestinal functions. The aim of this study was to examine the influence of the microflora on the distribution of endocrine cells and on the release of gastrointestinal peptides. METHODS:A quantitative morphologica...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(94)90526-6

    authors: Uribe A,Alam M,Johansson O,Midtvedt T,Theodorsson E

    更新日期:1994-11-01 00:00:00

  • Suppression of hepatitis C virus replication by cyclosporin a is mediated by blockade of cyclophilins.

    abstract:BACKGROUND & AIMS:Cyclosporin A specifically suppresses hepatitis C virus (HCV) replication in vitro at clinically achievable concentrations. In this study, we investigated the mechanisms of action of cyclosporin A against HCV replication. METHODS:The in vitro effects of cyclosporin A on HCV replication were analyzed ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2005.06.031

    authors: Nakagawa M,Sakamoto N,Tanabe Y,Koyama T,Itsui Y,Takeda Y,Chen CH,Kakinuma S,Oooka S,Maekawa S,Enomoto N,Watanabe M

    更新日期:2005-09-01 00:00:00

  • Diet in the pathogenesis and treatment of inflammatory bowel diseases.

    abstract::Some of the most common symptoms of the inflammatory bowel diseases (IBD, which include ulcerative colitis and Crohn's disease) are abdominal pain, diarrhea, and weight loss. It is therefore not surprising that clinicians and patients have wondered whether dietary patterns influence the onset or course of IBD. The que...

    journal_title:Gastroenterology

    pub_type: 杂志文章,评审

    doi:10.1053/j.gastro.2015.01.007

    authors: Lee D,Albenberg L,Compher C,Baldassano R,Piccoli D,Lewis JD,Wu GD

    更新日期:2015-05-01 00:00:00

  • Peptidergic and nitrinergic denervation in congenital esophageal stenosis.

    abstract::Congenital esophageal stenosis (CES) is a rare disorder with narrowed esophageal lumen that presents as dysphagia from childhood and that is often associated with tracheobronchial remnants or webs. The pathogenesis of CES is unknown. The aim of this study was to examine the histological and immunohistochemical feature...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(95)90294-5

    authors: Singaram C,Sweet MA,Gaumnitz EA,Cameron AJ,Camilleri M

    更新日期:1995-07-01 00:00:00

  • Entecavir therapy for up to 96 weeks in patients with HBeAg-positive chronic hepatitis B.

    abstract:BACKGROUND & AIMS:Entecavir demonstrated superior benefit to lamivudine at 48 weeks in nucleoside-naive patients with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB). We evaluated continued entecavir and lamivudine treatment through 96 weeks. METHODS:709 HBeAg-positive CHB patients were randomized to ...

    journal_title:Gastroenterology

    pub_type: 杂志文章,随机对照试验

    doi:10.1053/j.gastro.2007.08.025

    authors: Gish RG,Lok AS,Chang TT,de Man RA,Gadano A,Sollano J,Han KH,Chao YC,Lee SD,Harris M,Yang J,Colonno R,Brett-Smith H

    更新日期:2007-11-01 00:00:00

  • Pancreatic blood flow in cats with chronic pancreatitis.

    abstract::Pancreatic blood flow and its relationship to pancreatic interstitial pressure were investigated in a model of chronic pancreatitis in cats using a hydrogen gas-clearance technique with an intraductal electrode. The intraductal technique correlated well with blood flow measurements made using gamma-labeled microsphere...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Reber HA,Karanjia ND,Alvarez C,Widdison AL,Leung FW,Ashley SW,Lutrin FJ

    更新日期:1992-08-01 00:00:00

  • Intragastric distribution and gastric emptying assessed by three-dimensional ultrasonography.

    abstract:BACKGROUND & AIMS:Three-dimensional (3D) ultrasound imaging of the total stomach volume has not yet been achieved. The aim of this study was to investigate whether a magnetic position sensor system for acquisition of 3D ultrasonograms could be used to determine gastric emptying rates and intragastric distribution. MET...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(97)70078-7

    authors: Gilja OH,Detmer PR,Jong JM,Leotta DF,Li XN,Beach KW,Martin R,Strandness DE Jr

    更新日期:1997-07-01 00:00:00

  • T-helper 17 and interleukin-17-producing lymphoid tissue inducer-like cells make different contributions to colitis in mice.

    abstract:BACKGROUND & AIMS:T helper (Th) 17 cells that express the retinoid-related orphan receptor (ROR) γt contribute to the development of colitis in mice, yet are found in normal and inflamed intestine. We investigated their development and functions in intestines of mice. METHODS:We analyzed intestinal Th17 cells in healt...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2012.07.108

    authors: Ono Y,Kanai T,Sujino T,Nemoto Y,Kanai Y,Mikami Y,Hayashi A,Matsumoto A,Takaishi H,Ogata H,Matsuoka K,Hisamatsu T,Watanabe M,Hibi T

    更新日期:2012-11-01 00:00:00

  • Enhancement of the cyclic motor activity of the ovine small intestine by lysergic acid derivatives. Mechanism and significance.

    abstract::The effects of a variety of substances influencing the initiation of cyclic motor events at the gastroduodenal junction were studied in conscious sheep. A significant and long-lasting decrease in the frequency of cyclic events from approximately 100 min to 30-40 min was elicited by the intraduodenal bulb administratio...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Ruckebusch Y

    更新日期:1984-11-01 00:00:00

  • Primary prophylaxis of variceal hemorrhage: a randomized controlled trial comparing band ligation, propranolol, and isosorbide mononitrate.

    abstract:BACKGROUND & AIMS:This randomized controlled trial compared variceal band ligation (VBL), propranolol (PPL), and isosorbide-5-mononitrate (ISMN) in the prevention of first esophageal variceal bleed. METHODS:Over a 6-year period, 172 patients with cirrhosis, grade II or III esophageal varices that had never bled, were ...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1053/gast.2002.35385

    authors: Lui HF,Stanley AJ,Forrest EH,Jalan R,Hislop WS,Mills PR,Finlayson ND,Macgilchrist AJ,Hayes PC

    更新日期:2002-09-01 00:00:00

  • Recombinant factor VIIa for upper gastrointestinal bleeding in patients with cirrhosis: a randomized, double-blind trial.

    abstract:BACKGROUND & AIMS:Upper gastrointestinal bleeding (UGIB) is a severe and frequent complication of cirrhosis. Recombinant coagulation factor VIIa (rFVIIa) has been shown to correct the prolonged prothrombin time in patients with cirrhosis and UGIB. This trial aimed to determine efficacy and safety of rFVIIa in cirrhotic...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1053/j.gastro.2004.07.015

    authors: Bosch J,Thabut D,Bendtsen F,D'Amico G,Albillos A,González Abraldes J,Fabricius S,Erhardtsen E,de Franchis R,European Study Group on rFVIIa in UGI Haemorrhage.

    更新日期:2004-10-01 00:00:00

  • The effect of ischemic villus cell damage on crypt cell proliferation in the small intestine: evidence for a feedback control mechanism.

    abstract::In recent years the hypothesis that the number of villus cells regulates crypt cell proliferation in the epithelium of the small intestine has been brought forward by a number of investigators. To test this hypothesis, the villus cell population was reduced by clamping the superior mesenteric artery and vein in rats f...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Rijke RP,Hanson WR,Plaisier HM,Osborne JW

    更新日期:1976-11-01 00:00:00

  • Modeling pathogenesis of primary liver cancer in lineage-specific mouse cell types.

    abstract:BACKGROUND & AIMS:Human primary liver cancer is classified into biologically distinct subgroups based on cellular origin. Liver cancer stem cells (CSCs) have been recently described. We investigated the ability of distinct lineages of hepatic cells to become liver CSCs and the phenotypic and genetic heterogeneity of pr...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2013.03.013

    authors: Holczbauer Á,Factor VM,Andersen JB,Marquardt JU,Kleiner DE,Raggi C,Kitade M,Seo D,Akita H,Durkin ME,Thorgeirsson SS

    更新日期:2013-07-01 00:00:00

  • NF-kappaB activates transcription of the RNA-binding factor HuR, via PI3K-AKT signaling, to promote gastric tumorigenesis.

    abstract:BACKGROUND & AIMS:HuR is a RNA-binding factor whose expression is commonly upregulated in some human tumor types. We explored the molecular mechanism underlying HuR elevation and its role in gastric cancer tumorigenesis. METHODS:HuR expression and subcellular localization were determined by polymerase chain reaction, ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2008.08.009

    authors: Kang MJ,Ryu BK,Lee MG,Han J,Lee JH,Ha TK,Byun DS,Chae KS,Lee BH,Chun HS,Lee KY,Kim HJ,Chi SG

    更新日期:2008-12-01 00:00:00

  • Relapsing ulcerative colitis associated with spinal cord stimulation.

    abstract::Spinal cord stimulation is an increasingly popular form of pain treatment. An electrode positioned on the dorsal aspect of the spinal cord at the level of the nerve roots from the painful area stimulates the spinal cord. Current from the electrode is supplied by a pulse generator in the lower anterior abdominal wall. ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(99)70570-6

    authors: Kemler MA,Barendse GA,Van Kleef M

    更新日期:1999-07-01 00:00:00