Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0023890 (cirrhosis)
 42,195 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Bile acid metabolism was studied in rats with cirrhosis induced by carbon tetrachloride (CCl4). Although the typical histologic features of cirrhosis were seen, cholestasis was not present in these animals as evidenced by a normal total serum bilirubin concentration and by a normal hepatic capacity to remove taurocholate infused intravenously. The cirrhotic rats also secreted taurocholate into bile at a normal rate. The total bile salt pool size in the cirrhotic rats was not significantly different from the pool size in normal rats (10.59 +/- 1.19 mumoles per gm. of liver (+/- 1 standard error of the mean) and 10.43 +/- 0.92 mumoles per gm. of liver, respectively). When the bile was drained externally through a chronic bile fistula, the normal rats increased the bile salt synthetic rate approximately 3-fold after 48 hours of drainage. However, the cirrhotic rats failed to significantly increase the synthetic rate for bile salts in response to biliary drainage. The normal rats also had a significant increase in cholic acid synthesis at the maximal synthetic rate, whereas the cirrhotic rats did not. These findings indicate that (when feedback inhibition is removed) CCl4 cirrhotic rats lack the ability to normally increase the activity of 7 alpha-hydroxylase and 12 alpha-hydroxylase, rate-limiting enzymes in the synthesis of bile salts.
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PMID:Bile acid metabolism in the cirrhotic rat. 51 42

The chronic pancreatitis population of Wadsworth VA Hospital over the past five years was screened for two-fold or greater alkaline phosphatase elevation at any time during their course, as a marker for either distal common bile duct stenosis or other hepatobiliary disease. Forty-seven of 207 patients screened met this criterion and are reviewed in detail. Of the 16 patients with persistent alkaline phosphatase elevation (group B), 15 had proven common bile duct stenosis, demonstrating a clear pathophysiologic role of partial bile duct obstruction in their liver disease. Three had developed secondary biliary cirrhosis, marking this entity the commonest cause of secondary biliary cirrhosis at our hospital. Of the remaining 31 patients with transient alkaline phosphatase elevation (group A), only 4 had proven duct abnormalities which may resolve during recovery. Alcoholic liver disease was demonstrated with normal extrahepatic ducts in the remainder in group A adequately studies. Persistent greater than two-fold alkaline phosphatase elevation in pancreatitis thus represents a reliable marker of distal common bile duct stenosis, whose sequelae may include cholangitis and secondary biliary cirrhosis and which requires operative intervention in these cases. When a persistent alkaline phosphatase elevation greater than two-fold is encountered in a chronic pancreatitis patient, adequate cholangiography and liver histology are both necessary to confirm and grade this frequent and treatable complication.
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PMID:Common bile duct stenosis from chronic pancreatitis: a clinical and pathologic spectrum. 51 65

In the course of 4 years, among 11,738 admissions there were 245 (2.08%) patients with cholestasis (106 women and 139 men). Intrahepatic cholestasis (i.c.) was detected in 46.5%, and extrahepatic (e.c.) in 53.5%. The most frequent cause of i.c. were alcoholic and nonalcoholic chr. liver disease (fatty liver, chr. hepatitis, cirrhosis) (37% and 30%), acute viral hepatitis (15%) and toxic liver injury (14%) respectively. The causes of e.c. were: choledocholithiasis (44%), cancer of the pancreatic head (15%), cancer of gallbladder and extrahepatic ducts (12%) and cancer of liver (10%). The causes of c. were benigne, in 78.2%, while malignant neoplasms were present in 21.8%. Out of the multitude of laboratory tests two appeared particularly significant: glut, transpeptidase was pathologic in 81% of alcoholic liver disease, in 62% of the cases with obstructive jaundice and in 27.7% of malignant neoplasms. LX-lipoprotein examined in 52 patients was positive in 24% of i.c., and 60% of e.c. Proliferation of bile ducts was the most frequent finding in surgical liver biopsies in choledocholithiasis cases.
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PMID:Differential diagnosis, laboratory tests and histology in 245 patients with cholestasis. 52 15

Twelve of 43 patients with chronic active hepatitis (CAH) (28%) manifested clinical and laboratory features of cholestasis. The criteria for selection of these patients included at least two of the following: chronic or recurrent pruritus, serum alkaline phosphatase levels of 300 mU./ml. and cholesterol of 300 mg./dl. or more. When compared with 31 control cases these patients were found to have a preponderance of Ashkenazi Jews of Roumanian origin, a higher prevalence of joint and thyroid involvement and higher serum Ig-M Levels. Mortality was similar in both groups but patients with cholestatic features tended to die earlier in the course of the disease. Retrospectively, it was found that they had been treated more intensively, attained complete remissions less frequently and developed cirrhosis more readily. There were no significant differences in the frequency of HBsAg and anti-HBs, the mode of onset, the frequency of hepatosplenomegaly and jaundice, the hematologic findings and the prevalence of autoantibodies. Like acute cholangiolitic viral hepatitis, CAH with cholestatic features emerges as a more serious disease than the classical form of CAH.
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PMID:Chronic active hepatitis with cholestatic features. I. A clinical and immunological study. 53 97

Total bile acid concentration was determined in systemic and portal serum and in liver tissue from patients with presumably normal liver function, and from patients with extrahepatic cholestasis. Systemic and portal serum bile acids were also determined in patients with alcoholic liver cirrhosis. In 5 patients, in whom a portal catheter was inserted through the umbilical vein, the diurnal variation in systemic and portal serum bile acid concentration was studied. In patients with presumably normal liver function the fasting systemic serum bile acid concentration was 4.8+/-0.5 mumol times 1(-1), and the portal concentration was 12.9+/-1.5 mumol times 1(-1). In cholestasis and liver cirrhosis the systemic and portal bile acid concentration was substantially elevated. The bile acid concentration gradient between systemic serum, portal serum, liver tissue, and hepatic bile was 1:3:80:2600 in the patients with normal liver function. In both the cholestatic and cirrhotic condition the systemic and portal serum bile acid concentration was equilibrated. Postprandially both the systemic and portal bile acid concentration increased, but the gradient between these concentrations was unchanged. The results are compatible with the hypothesis that portal and systemic serum bile acid concentrations are determined by the intestinal absorption rate in subjects with normal liver function and by the hepatic and renal clearance capacity in cholestatic and cirrhotic conditions.
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PMID:Bile acid concentrations in systemic and portal serum in presumably normal man and in cholestatic and cirrhotic conditions. 56 Jul 15

Nodular hyperplasia of the liver is characterized by small, uniformly distributed nodules that are delineated by marginal condensations of reticulin. There is no cholestasis and the liver is of normal size and shape. The cause is unknown, but it is not a precursor of cirrhosis, is not preneoplastic, and is not associated with contraceptive use. It is easily distinguished from adenoma, hamartoma, focal nodular hyperplasia, and partial nodular transformation, all of which are focal lesions. Disorder in the terminology that now exists will be minimized by suggesting a new term only when a specific cause is identified or a morphologic feature is distinct.
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PMID:Noncirrhotic nodulation of the liver. 58 Aug 77

In a series of 212 liver biopsies which had been subjected to ultrastructural examination, the picture of cholestasis was encountered in 60 cases. In 32 cases it was associated with subhepatal obtruction. The reminder included hepatitis, hepatic fibrosis and cirrhosis and other diseases. Experiments in rats showed that the main findings following the ligature of choledochus included oedema and disintegration of mucosal microvilli in the bile ducts. Such changes preceded those of the hepatocytes. Simple overload by parenteral bilirubin did not evoke comparable changes. Therefore the mechanical disturbance of the epithelial wall of the bile ducts has been regarded as the basic changes subjected to later secondary modifications.
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PMID:[Hepatic cholestasis]. 61 36

Methods to quantitatively assess all the hemodynamic alterations which occur in cirrhosis of the liver unfortunately are not as yet available. Within this context, transhepatic catheterization of portal vein branches represents a real progress. A better understanding of the pathophysiology of the BSP plasma disappearance curve has revealed that the second exponential component (k2) is particularly useful for the early diagnosis of cholestasis.
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PMID:[Hepatic hemodynamics and function (author's transl)]. 63 11

The non-invasive diagnostic technique of computed tomograph (CT) has been assessed in 100 patients with established liver disease. CT can differentiate extra- from intrahepatic cholestasis and may define the obstructing lesion in the former group. It is of value in detecting infiltrations with fat or iron, and provides useful information in patients with cirrhosis and metastatic deposits. At present it appears of less value in the diagnosis of non-fibrotic parenchymal liver disease.
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PMID:Computed tomographic scanning in liver disease. 64 84

Serum squalene levels did not change in patients with acute hepatitis, chronic active hepatitis and liver cirrhosis, but were significantly reduced in patients with intra- and extrahepatic cholestasis. The ratio of cholesterol to squalene remained normal in patients with acute hepatitis as well as chronic active hepatitis, while being slightly decreased in patients with liver cirrhosis. On the other hand, in patients with cholestasis the ratio was markedly raised. From these observations we confirmed abnormal sterol metabolism in hepatobiliary diseases, and clinical usefulness of the ratio of cholesterol to squalene to distinguish hepatocellular injury and cholestasis.
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PMID:Serum squalene levels in hepatobiliary diseases. 67 82


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