Changes in protein kinase C isoforms in association with vascular hyporeactivity in cirrhotic rat aortas.

Abstract:

BACKGROUND & AIMS:Although protein kinase C (PKC) alterations may play a role in the abnormal reactivity of cirrhotic rat aortas, its isoforms and cellular distribution are unknown. We therefore studied the protein expression and cellular distribution of PKC isoforms and their activation in cirrhotic rat aortas. METHODS:Endothelium-denuded aortas from control and cirrhotic rats were examined. Immunoblots were performed with PKC isoform-specific antibodies. Aortic reactivity was determined for phorbol myristate acetate and phenylephrine after PKC down-regulation. RESULTS:PKC-alpha expression was reduced in both the cytosolic and membrane fractions in cirrhotic aortas. Trace amounts of PKC-beta were detected in cirrhotic aortas. PKC-delta was detected in the cytosolic fraction of control and cirrhotic aortas. PKC-zeta was detected in the membrane fraction in control aortas and in the cytosolic fraction in cirrhotic aortas. Phorbol myristate acetate and phenylephrine triggered translocation of PKC-alpha and PKC-delta isoforms from the cytosol to the membrane in control aortas; in cirrhotic aortas, only PKC-alpha was translocated. Aortic reactivities were reduced after PKC down-regulation. PKC-alpha and -delta activities were reduced in cirrhotic aortas. CONCLUSIONS:These results suggest that a change in PKC isoforms may be responsible in part for the abnormal reactivity and intracellular transduction through the PKC pathway in cirrhotic rat aortas.

journal_name

Gastroenterology

journal_title

Gastroenterology

authors

Tazi KA,Moreau R,Heller J,Poirel O,Lebrec D

doi

10.1053/gast.2000.8522

keywords:

subject

Has Abstract

pub_date

2000-07-01 00:00:00

pages

201-10

issue

1

eissn

0016-5085

issn

1528-0012

pii

S0016508500771101

journal_volume

119

pub_type

杂志文章
  • A randomized, controlled trial of maintenance interferon therapy for patients with chronic hepatitis C virus and persistent viremia.

    abstract:BACKGROUND & AIMS:: At least half of patients with chronic hepatitis C virus (HCV) fail to respond to interferon or interferon/ribavirin therapy. Histological improvement is observed in some nonresponders. We conducted a randomized, controlled trial to determine if maintenance interferon therapy could prevent histologi...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1016/s0016-5085(99)70402-6

    authors: Shiffman ML,Hofmann CM,Contos MJ,Luketic VA,Sanyal AJ,Sterling RK,Ferreira-Gonzalez A,Mills AS,Garret C

    更新日期:1999-11-01 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

  • Fibromodulin, an oxidative stress-sensitive proteoglycan, regulates the fibrogenic response to liver injury in mice.

    abstract:BACKGROUND & AIMS:Collagen I deposition contributes to liver fibrosis, yet little is known about other factors that mediate this process. Fibromodulin is a liver proteoglycan that regulates extracellular matrix organization and is induced by fibrogenic stimuli. We propose that fibromodulin contributes to the pathogenes...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.11.029

    authors: Mormone E,Lu Y,Ge X,Fiel MI,Nieto N

    更新日期:2012-03-01 00:00:00

  • Balloon dilatation of upper digestive tract strictures.

    abstract::The results of balloon dilatation of upper digestive tract stricture in 111 patients were evaluated. Eighty-eight patients had esophageal strictures and 23 had gastric or pyloric strictures. Thirty-six patients had strictures associated with previous operations. Twenty-two percent of the patients with esophageal stric...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(85)90449-4

    authors: Lindor KD,Ott BJ,Hughes RW Jr

    更新日期:1985-09-01 00:00:00

  • Changes in hepatitis C virus antigen in liver with antiviral therapy.

    abstract:BACKGROUND:Although it has recently become possible to detect hepatitis C viral antigens in liver biopsy specimens, the frequency and clinical significance of this finding remains uncertain. Therefore, 49 liver biopsy specimens from 35 patients with hepatitis C were studied to make these assessments. METHODS:Hepatitis...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(93)90905-r

    authors: Di Bisceglie AM,Hoofnagle JH,Krawczynski K

    更新日期:1993-09-01 00:00:00

  • Spontaneous bacterial peritonitis caused by Neisseria gonorrhoeae. Evidence for a transfallopian route of infection.

    abstract::We describe the clinical and laboratory features of a case of spontaneous bacterial peritonitis caused by Neisseria gonorrhoeae in a sexually active woman with Laennec's cirrhosis, ascites, and asymptomatic cervical gonorrhea. Treatment of the infection with high-dose parenteral penicillin was associated with resoluti...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(85)90155-6

    authors: Stassen WN,McCullough AJ,Hilton PK

    更新日期:1985-03-01 00:00:00

  • Bone metastases in malignant gastrinoma.

    abstract::Six patients (4 women, 2 men) with malignant gastrinoma developed multiple bone metastases; osteolytic as well as osteoblastic lesions occurred. All lesions involved the central skeleton, most caused symptoms, and, in 2 cases, there was associated hypercalcemia with normal serum parathormone levels. Poor responses wer...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(86)80014-2

    authors: Barton JC,Hirschowitz BI,Maton PN,Jensen RT

    更新日期:1986-11-01 00:00:00

  • Neuropeptide Y inhibits excitatory enteric neurons supplying the circular muscle of the guinea pig small intestine.

    abstract::The effect of neuropeptide Y on the motor activity of the circular and longitudinal muscle of the guinea pig small intestine was investigated. Neuropeptide Y (0.3-30 nM) inhibited, in a concentration-dependent manner, the ascending enteric reflex contraction of the circular muscle; both the cholinergic and noncholiner...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(87)90628-7

    authors: Holzer P,Lippe IT,Barthó L,Saria A

    更新日期:1987-06-01 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

  • Hypervitaminosis A unmasked by acute viral hepatitis.

    abstract::A case of acute hypervitaminosis A complicating viral hepatitis is reported. Twenty days after presenting with hepatitis B, a 42-yr-old vegetarian developed acute hypervitaminosis A in the absence of recent, massive exposure to the vitamin. Findings included headache, confusion, skin desquamation, and hypercalcemia. P...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Hatoff DE,Gertler SL,Miyai K,Parker BA,Weiss JB

    更新日期:1982-01-01 00:00:00

  • Ca2+ channel blockers stimulate ileal and colonic water absorption.

    abstract::The effects of calcium channel blockers on water transport in the rat ileum and distal colon were studied in vivo using the single-pass perfusion technique. Parenteral but not intraluminal verapamil, and parenteral nifedipine increased ileal water absorption, with effects lasting at least 60 min. In contrast, i.p. ver...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(85)90584-0

    authors: Donowitz M,Levin S,Powers G,Elta G,Cohen P,Cheng H

    更新日期:1985-10-01 00:00:00

  • Behavioral management of fecal incontinence in adults.

    abstract::Biofeedback has been advocated as first-line therapy for patients whose symptoms of mild to moderate fecal incontinence have not responded to simple dietary advice or medication. Three main modalities have been described: (1) use of an intra-anal electromyographic sensor, a probe to measure intra-anal pressure, or per...

    journal_title:Gastroenterology

    pub_type: 杂志文章,评审

    doi:10.1053/j.gastro.2003.10.058

    authors: Norton C

    更新日期:2004-01-01 00:00:00

  • Aging is associated with decreased pancreatic acinar cell regeneration and phosphatidylinositol 3-kinase/Akt activation.

    abstract:BACKGROUND & AIMS:The effects of aging on pancreatic acinar cell proliferation have not been clearly defined. Phosphatidylinositol 3-kinase (PI3K)-mediated phosphorylation of Akt is a critical step for proliferation of various cell types and insulin secretion from pancreatic endocrine cells; however, its role in acinar...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2005.03.016

    authors: Watanabe H,Saito H,Rychahou PG,Uchida T,Evers BM

    更新日期:2005-05-01 00:00:00

  • Ileocolonoscopy in seronegative spondylarthropathy.

    abstract::A prospective endoscopic and histologic study of terminal ileum and colorectum in 211 patients with seronegative spondylarthropathy revealed macroscopic inflammatory lesions varying from erythema to superficial erosions in 30% of the patients and microscopic inflammation in 61%. Two types of inflammation were observed...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(89)91557-6

    authors: De Vos M,Cuvelier C,Mielants H,Veys E,Barbier F,Elewaut A

    更新日期:1989-02-01 00:00:00

  • Chronic intestinal inflammation induces stress-response genes in commensal Escherichia coli.

    abstract:BACKGROUND & AIMS:Intestinal microbes induce homeostatic mucosal immune responses, but can also cause inappropriate immune activation in genetically susceptible hosts. Although immune responses to bacterial products have been studied extensively, little is known about how intestinal inflammation affects functions of co...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.06.064

    authors: Patwa LG,Fan TJ,Tchaptchet S,Liu Y,Lussier YA,Sartor RB,Hansen JJ

    更新日期:2011-11-01 00:00:00

  • Evaluation of Nd:YAG photocoagulation using a new experimental ulcer model with a single bleeding artery.

    abstract::A new model of an acute bleeding gastric ulcer with a single bleeding artery in its base has been developed. A suction ulcer defect is created over a large, submucosal artery. Small bleeding marginal vessels are electrocoagulated with a fine-tipped bipolar forceps. The artery in the base of the ulcer is dissected free...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Dennis MB,Silverstein FE,Gilbert DA,Peoples JE

    更新日期:1981-06-01 00:00:00

  • Increased risk of noncardia gastric cancer associated with proinflammatory cytokine gene polymorphisms.

    abstract:BACKGROUND & AIMS:Genetic variations in proinflammatory and anti-inflammatory cytokine genes influence individual response to carcinogenic exposures. Polymorphisms in interleukin (IL)-1 beta and its endogenous receptor antagonist are associated with risk of Helicobacter pylori-related gastric cancer. The aim of this st...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(03)00157-4

    authors: El-Omar EM,Rabkin CS,Gammon MD,Vaughan TL,Risch HA,Schoenberg JB,Stanford JL,Mayne ST,Goedert J,Blot WJ,Fraumeni JF Jr,Chow WH

    更新日期:2003-05-01 00:00:00

  • Preparation of subcellular membranes from rat intestinal scrapings or isolated cells. Different Ca2+ binding, nonesterified fatty acid levels, and lipolytic activity.

    abstract::Basolateral, brush-border, and Golgi-enriched subcellular membrane fractions, prepared from homogenates of rat small intestinal mucosa obtained by scraping, had unusually high concentrations of nonesterified fatty acids. These fatty acids appear to be responsible for the large amount of calcium binding, an effect that...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(86)90435-x

    authors: Walters JR,Horvath PJ,Weiser MM

    更新日期:1986-07-01 00:00:00

  • Sonographic appearances in biliary ascariasis.

    abstract::Biliary ascariasis is as frequent a cause of adult biliary disease as gallstones in Kashmir Valley, India. In the present study, we prospectively evaluated the role of sonography in the diagnosis of biliary ascariasis and its utility in monitoring the exit of worms from the bile duct. Sonography was performed on 28 pa...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(87)91013-4

    authors: Khuroo MS,Zargar SA,Mahajan R,Bhat RL,Javid G

    更新日期:1987-08-01 00:00:00

  • Heterotopic liver transplantation for fulminant Wilson's disease.

    abstract::Wilson's disease may present with severe acute hepatocellular failure. The only effective treatment for fulminant Wilson's disease is liver transplantation, which may lead to reversal of the underlying disease. Some patients with cirrhosis who are too ill to undergo orthotopic liver transplantation have been treated w...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(90)90497-o

    authors: Stampfl DA,Muñoz SJ,Moritz MJ,Rubin R,Armenti VT,Jarrell BE,Maddrey WC

    更新日期:1990-12-01 00:00:00

  • Drug- and estrogen-induced cholestasis through inhibition of the hepatocellular bile salt export pump (Bsep) of rat liver.

    abstract:BACKGROUND & AIMS:Drug-induced cholestasis is a frequent form of acquired liver disease. To elucidate the molecular pathogenesis of drug-induced cholestasis, we investigated the effects of prototypic cholestatic drugs on the canalicular bile salt export pump (Bsep) of rat liver. METHODS:Vesicles were isolated from Bse...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(00)70224-1

    authors: Stieger B,Fattinger K,Madon J,Kullak-Ublick GA,Meier PJ

    更新日期:2000-02-01 00:00:00

  • Association between high-normal levels of alanine aminotransferase and risk factors for atherogenesis.

    abstract:BACKGROUND & AIMS:Liver disease has been associated with cardiovascular disorders, but little is known about the relationship between serum levels of alanine aminotransferase (ALT) and markers of atherogenesis. We investigated the relationship between low-normal and high-normal levels of ALT and an extended panel of ca...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2013.08.036

    authors: Siddiqui MS,Sterling RK,Luketic VA,Puri P,Stravitz RT,Bouneva I,Boyett S,Fuchs M,Sargeant C,Warnick GR,Grami S,Sanyal AJ

    更新日期:2013-12-01 00:00:00

  • Dysregulated Bile Transporters and Impaired Tight Junctions During Chronic Liver Injury in Mice.

    abstract:BACKGROUND & AIMS:Liver fibrosis, hepatocellular necrosis, inflammation, and proliferation of liver progenitor cells are features of chronic liver injury. Mouse models have been used to study the end-stage pathophysiology of chronic liver injury. However, little is known about differences in the mechanisms of liver inj...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2018.06.048

    authors: Pradhan-Sundd T,Vats R,Russell JO,Singh S,Michael AA,Molina L,Kakar S,Cornuet P,Poddar M,Watkins SC,Nejak-Bowen KN,Monga SP,Sundd P

    更新日期:2018-10-01 00:00:00

  • Role of inducible nitric oxide synthase in postoperative intestinal smooth muscle dysfunction in rodents.

    abstract:BACKGROUND & AIMS:We have shown that intestinal manipulation leads to a significant inhibition of circular muscle contraction. We hypothesized that the inflammatory mediator inducible nitric oxide (NO) plays a role in surgically induced ileus. METHODS:Rats and inducible NO synthase (iNOS) knockout and wild-type mice u...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(00)70214-9

    authors: Kalff JC,Schraut WH,Billiar TR,Simmons RL,Bauer AJ

    更新日期:2000-02-01 00:00:00

  • The impact of interferon plus ribavirin on response to therapy in black patients with chronic hepatitis C. The International Hepatitis Interventional Therapy Group.

    abstract:BACKGROUND & AIMS:Black patients with chronic hepatitis C have lower response rates than white patients to interferon monotherapy. The factors responsible for these differences are unknown, as is the impact of combination antiviral therapy on responsiveness among ethnic groups. We evaluated the impact of race on respon...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1053/gast.2000.19289

    authors: McHutchison JG,Poynard T,Pianko S,Gordon SC,Reid AE,Dienstag J,Morgan T,Yao R,Albrecht J

    更新日期:2000-11-01 00:00:00

  • Human intestinal folate transport: cloning, expression, and distribution of complementary RNA.

    abstract:BACKGROUND & AIMS:Despite intensive investigations, very little is known about the molecular identity(ies) of the intestinal folate transport system(s), especially in humans. The aim of this study was to isolate a functional human intestinal folate carrier complementary DNA (cDNA) clone and determine the distribution o...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.1997.v112.pm9041240

    authors: Nguyen TT,Dyer DL,Dunning DD,Rubin SA,Grant KE,Said HM

    更新日期:1997-03-01 00:00:00

  • Endoprosthesis for internal drainage of the biliary tract. Technique and results in 48 cases.

    abstract::In 48 patients with obstructive jaundice caused by unresectable lesions, a polyethylene tube was inserted into the biliary tract using a percutaneous transhepatic technique. This endoprosthesis provided permanent internal drainage without an external catheter. In 27 patients, bilirubin declined to anicteric or subicte...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Burcharth F,Jensen LI,Olesen K

    更新日期:1979-07-01 00:00:00

  • Acute relapsing pancreatitis as a complication of papillary stenosis after endoscopic sphincterotomy.

    abstract::Endoscopic sphincterotomy has proven to be a safe alternative to surgery for selected types of biliary disease. Despite a relatively low morbidity, postprocedure complications are well described. This report presents an experience with three patients in whom acute relapsing pancreatitis developed as a possible complic...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(93)90663-w

    authors: Asbun HJ,Rossi RL,Heiss FW,Shea JA

    更新日期:1993-06-01 00:00:00

  • Loss of SMAD4 alters BMP signaling to promote colorectal cancer cell metastasis via activation of Rho and ROCK.

    abstract:BACKGROUND & AIMS:SMAD4 frequently is lost from colorectal cancers (CRCs), which is associated with the development of metastases and a poor prognosis. SMAD4 loss is believed to alter transforming growth factor β signaling to promote tumor progression. However, SMAD4 is also a central component of the bone morphogeneti...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2014.03.052

    authors: Voorneveld PW,Kodach LL,Jacobs RJ,Liv N,Zonnevylle AC,Hoogenboom JP,Biemond I,Verspaget HW,Hommes DW,de Rooij K,van Noesel CJ,Morreau H,van Wezel T,Offerhaus GJ,van den Brink GR,Peppelenbosch MP,Ten Dijke P,Hardwick JC

    更新日期:2014-07-01 00:00:00

  • Fluorescent PAS-reaction study of the epithelium of normal rabbit ileum and after challenge with enterotoxigenic Escherichia coli.

    abstract::Fluorescent periodic acid-Schiff reaction (FPR) was used in the study of the normal rabbit ileal epithelium and its changes after injection of living cultures or enterotoxins of enterotoxigenic Escherichia coli. This reaction, with the use of auramine OO-SO2 complex as a Schiff-type reagent, demonstrates gut epitheliu...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Khavkin TN,Kudryavtseva MV,Dragunskaya EM,Polotsky YE,Kudryavtsev BN

    更新日期:1980-04-01 00:00:00