Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019158 (hepatitis)
 30,205 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Woodchucks free from woodchuck hepatitis virus were treated with diethylnitrosamine in vivo for 2 months, and then hepatocytes obtained by enzymatic perfusion were cultured with the hepatopromoter phenobarbital. This in vivo-in vitro procedure gave rise to proliferating epithelial cell foci, from one of which the presently described hepatocyte cell line (WLC-3) was established and characterized. WLC-3 cells possess morphological and biochemical features of differentiated hepatocytes, including glucose-6-phosphatase activity and albumin production. Histopathological analysis of the tumor which developed transitorily in nude mouse subcutis after inoculation of the cell line revealed glandular structures comprising cells of hepatocellular-like morphology. This is the first established woodchuck hepatocyte cell line free from woodchuck hepatitis virus and is therefore expected to be useful for studying the mode of gene expression and viral proliferation of woodchuck hepatitis virus and the mechanisms underlying woodchuck hepatitis virus-related hepatocarcinogenesis.
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PMID:Establishment and characterization of a diethylnitrosamine-initiated woodchuck hepatocyte cell line. 288 13

A serially transplantable rat hepatocellular carcinoma (HCC) line was established. The primary spontaneous HCC which developed in a 506-day-old male hereditary hepatitis LEC rat was inoculated into young LEC rats. Only this HCC of 18 primary HCCs was successful in serial transplantation. The established cell line was histologically identical to the primary HCC showing a well-differentiated type with a trabecular structure of tumorous hepatocytes. The characteristic of albumin production was maintained. Chromosome analysis revealed rather widely dispersed polyploid chromosome numbers with a modal value at 96. Every metaphase contained two to five unusually large marker chromosomes.
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PMID:A transplantable cell line derived from spontaneous hepatocellular carcinoma of the hereditary hepatitis LEC rat. 313 Mar 60

Immune complexes isolated from two patients with chronic non-A, non-B hepatitis, one patient with acute non-A, non-B hepatitis and one patient with juvenile rheumatoid arthritis were examined by means of a combined chromatographic and electrophoretic method. Both analyses showed the presence of complexes consisting of IgG, IgM, complement c1q factor and albumin; no antigen constituents were detected. The IgG-to-IgM ratio varied from 1:1 to 4:1, suggesting that one could be dealing with complexes of both IgG-IgM and IgG-IgG types. Moreover, the detectable presence of c1q factor might indicate that such complexes were capable of activating complement.
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PMID:Chromatographic and electrophoretic studies of immune complexes in non-A, non-B hepatitis. 313 83

To determine whether thyroid hormone-binding proteins in serum, particularly albumin, facilitate the transfer of T4 into human tissues, we studied cellular T4 uptake (CT4) by human liver (Hep G2) cells from medium containing serum from subjects with familial dysalbuminemic hyperthyroxinemia (FDH) and acquired and familial T4-binding globulin (TBG) excess and patients with normal T4-binding to albumin and normal TBG concentrations. Serum from nine subjects with FDH whose mean serum total T4 (TT4) concentration was 203 +/- 27 nmol/L were matched for TT4 concentrations with serum from nine subjects with acquired TBG excess (TT4, 201 +/- 23 nmol/L) and nine subjects with thyrotoxicosis and normal TBG concentrations (TT4, 205 +/- 28 nmol/L). The subjects' CT4 results were compared to their serum free T4 concentration, measured by equilibrium dialysis (DT4), and their serum free T4 index (FT4I) value. The mean serum DT4 value for the subjects with FDH (23 +/- 5 fmol/L) and those with TBG excess (23 +/- 3 fmol/L) were normal, whereas it was elevated (44 +/- 9 fmol/L; P less than 0.001) for the thyrotoxic patients with normal TBG concentrations. The mean CT4 value also was normal for the subjects with FDH (37.7 +/- 4.9 fmol/plate) and those with TBG excess (36.6 +/- 4.6 fmol/plate), but was elevated for the thyrotoxic patients (62.3 +/- 11.2 fmol/plate; P less than 0.001). In all three groups studied, the relationship between individual CT4 and DT4 values was similar to that previously found in subjects with no T4-binding protein abnormalities. The mean serum FT4I value was lower for the subjects with acquired TBG excess (111 +/- 22) than for the subjects with FDH (133 +/- 22; P less than 0.05), and it was much higher for the subjects with thyrotoxicosis (221 +/- 31; P less than 0.001). In the subjects with FDH and those with thyrotoxicosis the normal relationship between CT4 and FT4I was maintained, while in the subjects with acquired TBG excess, FT4I values were lower than expected. In seven of the nine subjects with TBG excess, the abnormality was associated with conditions known to increase its sialic acid content: hepatitis (one subject), pregnancy (four subjects), and estrogen therapy (two subjects). The CT4 values were similar in nine subjects with acquired TBG excess (seven pregnant women and two subjects with chronic active hepatitis) and five subjects with familial TBG excess (34.8 +/- 4.3 vs. 34.0 +/- 8.6 fmol/plate, respectively).(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:Normal cellular uptake of thyroxine from serum of patients with familial dysalbuminemic hyperthyroxinemia or elevated thyroxine-binding globulin. 314 12

A new cell line derived from a woodchuck hepatitis surface antigen-positive woodchuck hepatocellular carcinoma has been established and named T3-HEP-W1. This new cell line was established directly from a primary woodchuck hepatocellular carcinoma. Adaptation of the cells to the in vitro culture condition was completed after 3 months, with the doubling time of 24 hr. The morphologic features of the cell by light microscopy were of an epithelial type. The modal chromosome number was 100. Ornithine and tyrosine aminotransferase activities were detected. Production of albumin was negative. Integration of woodchuck hepatitis virus DNA was demonstrated by Southern blot analysis, although the secretion of woodchuck hepatitis surface antigen was not detected. T3-HEP-W1 is quite different from the previously reported WH257GE10 cell line and provides another in vitro model for the study of human hepatocellular carcinoma related to hepatitis B virus.
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PMID:Establishment of a new cell line from a woodchuck hepatocellular carcinoma. 333 96

We recently presented preliminary data indicating the presence of antibodies against acetaldehyde adducts in sera of over 70% of alcoholic patients. To assess the respective roles of liver disease and alcohol consumption as well as the specificity of this immune response, 141 patients in various stages of alcoholic and nonalcoholic liver diseases were tested by a hemagglutination assay. Sixty-three (73%) of 86 alcoholics had antibody titers above control levels (p less than 0.0001). Alcohol consumption of these individuals was significantly higher (p less than 0.001) than that of those alcoholics with normal titers. Twenty-two patients (39%) with nonalcoholic liver diseases also had elevated levels of antibodies against acetaldehyde adducts (p less than 0.0005); of these, 8 had primary biliary cirrhosis (7 in Stages III and IV), 9 had chronic active hepatitis (6 with cirrhosis) and 5 had acute (virus- or drug-induced) hepatitis. Antibody titers did not correlate with levels of transaminase or alkaline phosphatase activity, nor with bilirubin, and albumin. However, in 52 alcoholics and in nonalcoholic patients with biopsy-confirmed liver disease, the highest titers were seen in the more advanced stages of liver damage. Thus, in addition to alcohol consumption, severity of liver disease may play a role in the appearance of circulating antibodies against acetaldehyde adducts.
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PMID:The role of alcoholism and liver disease in the appearance of serum antibodies against acetaldehyde adducts. 337 72

In a group of 50 patients with liver cirrhosis compared with a group of 50 clinically healthy subjects serum magnesium levels were determined. The patients were divided according the aetiology of liver cirrhosis and to the presence or not of ascite and cholestasis. The serum magnesium levels were related to the main laboratory tests used in liver cirrhosis. The patients present a significant decrease of serum magnesium levels in comparison to controls. The patients with alcoholic cirrhosis of the liver and with ascite have significant lower magnesium levels in comparison with the patients with post-hepatitis cirrhosis and with patients without ascite. There is a significant correlation between serum magnesium levels and serum levels of aldosterone, albumin, gamma-glutamyl transpeptidase and total pool of bile acids. Direct and indirect effects of alcohol, a secondary hyperaldosteronism, the use of diuretics, and hypoalbuminaemia could account for magnesium serum level decrease in liver cirrhosis.
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PMID:[Serum levels of magnesium in hepatic cirrhosis]. 344 90

There were 72 patients (19 with hepatic failure, 10 with fulminant hepatitis, eight with paraquat poisoning, eight with rheumatoid arthritis, five with myasthenia gravis, four with hyperlipidemia, four with systemic arteriosclerosis including brain infarction, three with pemphigus vulgaris, two with multiple myeloma, two with systemic lupus erythematosus, two cases non-specific Ig-G antibody, two cases medication with an anticancer drug, one with multiple sclerosis, one with Crohn's disease with amyloid kidney and one with chronic myeloblastic leukemia) treated by plasma exchange in the Kidney Center, Tokai University School of Medicine from Jan. 1983 to Dec. 1986. We performed plasma exchange using fresh frozen plasma in 40 cases and Lactate-Ringer's solution containing albumin (4.0-5.0%) in 20 cases as the replacement fluid. In 17 cases, we performed double filtration plasma exchange with the recycle system and no replacement fluid. Although PE therapy did not constitute a basic therapy for hyperlipidemia, pemphigus vulgaris, rheumatoid arthritis, myasthenia gravis, and systemic lupus erythematosus, it was effective in relieving severe clinical symptoms. At the present time, conventional plasma exchange does not improve the survival rate of patients with hepatic failure and fulminant hepatitis. Developments of a new artificial liver support apparatus and identity of many toxic substances in hepatic failure are necessary. No hypotension, hypovolemic shock or other significant complications were experienced.
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PMID:Clinical reports on plasma exchange in the Kidney Center, Tokai University School of Medicine. 344 83

Studies of virus sterilization of coagulation factor concentrates using marker viruses, AIDS, hepatitis B (HBV) and non-A, non-B hepatitis (NANBHV) viruses indicate the following: Strategies adopted to stabilize coagulation factors to heat denaturation, including addition of high concentrations of solutes or lyophilization, stabilize virus. At 60 degrees C, heating in the liquid state provides more rapid virus kill than heating in the lyophilized state with 2% residual moisture. To achieve the same virucidal potency as achieved on heating albumin at 60 degrees C for 10 hours, stabilized coagulation factor concentrates would require a substantial increase in the dose of heat. The rate of inactivation by either thermal or solvent/detergent methods slows with time. Improved virus kill is attained more easily by increasing the temperature than by extending the duration of exposure. Viruses vary widely in their sensitivity to thermal denaturation or solvent/detergent action. Because studies on the rate of inactivation of HBV and NANBHV are not feasible, assessment of their sensitivity is at best approximate. Sensitivity to thermal inactivation appears to follow the order HTLV-III greater than VSV, EMC greater than NANBHV?, Sindbis much greater than HBV. Sensitivity to organic solvent/detergent mixtures appears to follow the order HTLV-III greater than Sindbis, Sendai, HBV?, NANBHV? greater than VSV much much greater than EMC. Protein enveloped forms of NANBHV must occur rarely or not at all. Use of marker viruses to compare virucidal potency of methods that inactivate by different mechanisms may lead to erroneous conclusions; however, marker virus data probably provide useful comparisons of related sterilization methods or of a single method applied to different protein mixtures. If virus sterilization processes are to be validated in a manner which enables a meaningful comparison between laboratory and clinical results, higher titers of virus will be required.
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PMID:Laboratory and preclinical evaluation of the virus safety of coagulation factor concentrates. 360 83

A simple and sensitive ELISA was developed to characterize the interaction between polymerised human serum albumin (pHSA) and HBsAg, using pHSA-coated polyvinylmicrotitre plates as solid phase and anti-HBs-coupled HRPO as the conjugate. The interaction was found to be specific and dependent on the size of albumin polymer. pHSA-binding activity (pHSA-BA) was studied in both HBsAg-negative and HBsAg-positive sera from various liver diseases including acute viral hepatitis, fulminant hepatitis, cirrhosis of liver, chronic active hepatitis, and healthy HBsAg carriers. pHSA-BA was detected only in HBsAg-positive sera. Analysis of HBsAg-positive sera indicated pHSA-BA in high proportions of patients sera as compared to sera from healthy HBsAg carriers. pHSA-BA was detected both in the presence and absence of HBe markers, though the mean BA was relatively high in presence of HBeAg. The effect of human serum immunoglobulins (IgG, IgA, and IgM) on the BA was investigated and a correlation between pHSA-BA and HBsAg-IgM complex positivity in sera was established. Finally, the probable role of human serum IgM in facilitating the binding process was discussed.
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PMID:Studies on HBsAg binding with polymerised human serum albumin by ELISA. 361 Dec 89


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