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

Geographic area, age and sex influence the epidemiology of hepatoma. Aetiological factors are aflatoxins, sex hormones, thorotrast, alpha 1-antitrypsin deficiency, immunosuppression, vinylchloride, parasites, cirrhosis of the liver, and the hepatitis-B virus. Early diagnosis of the tumour is possible using alpha 1-fetoprotein estimations and modern morphological methods, particularly scintiscanning. Tumour resection is therapeutically desirable, while selective chemotherapy remains palliative and liver transplantation failed to prolong survival.
 ...
PMID:[Primary liver cell carcinoma, aetiology and clinical picture (author's transl)]. 9 Dec 71

The immunocellular response to fetal antigens was studied in ten patients with hepatocarcinomas. Homogenized extracts of human fetal liver and purified human alpha-fetoprotein were used as antigen substances. The control group included 15 patients with cirrhosis of the liver. The level of circulating T lymphocytes (E-rosettes) was also registered. Patients with hepatocarcinoma showed a definite response to both antigens, determined by the degree of inhibition of leukocyte migration. The migration indices were as follows: x = 0.65 +/- 0.16 for homogenized fetal liver antigen, and x = 0.79 +/- 0.13 for alpha-fetoprotein antigen. These values were 0.93 +/- 0.13 and 0.95 +/- 0.15 respectively in the cirrhotic patients. The differences in the migration indices for the two groups were statistically significant with both antigens (p less than 0.0005 and p less than 0.005). The decrease of the number of T lymphocytes in patients with hepatomas was also significant (p less than 0.005). The determination with homogenized fetal antigen was more sensitive than with alpha-fetoprotein (p less than 0.01). A significant relationship between the severity of the tumor and the immunocellular response could also be seen (r = 0.84; p less than 0.001). Response tended to diminish as the tumor progressed. The disappearance of immunocellular response seemed to depend at least in part on the decreasing number of T lymphocytes, since there was a significant inverse correlation between the two parameters (r = -0.75; p less than 0.01).
 ...
PMID:[Immunocellular response to fetal antigens in patients with hepatoma (author's transl)]. 9 78

In 1896, when he was 63 years old, Johannes Brahms, who had always been demonstrably in good health, developed an icterus of increasing intensity together with a considerable enlargement of the liver and loss of weight. Since infectious hepatitis could scarcely come into the question, from the medical point of view a neoplasm in the region of the liver as well as cirrhosis of the liver were considered. While hepatic carcinoma is a relatively rare disease in Europe even today and Brahms, on the other hand, had consumed copious quantities of concentrated alcoholic drinks during his lifetime, cirrhosis of the liver is the most probable diagnosis, especially as at the end hemorrhages from esophageal varices and the lower intestinal segments occurred.
 ...
PMID:[How Johannes Brahms died]. 11 Oct 50

The carcinogenicity of aflatoxin B1 (AFB1) has been under evaluation in nonhuman primates for the past 13 years. A total of 47 Old World monkeys, chiefly rhesus and cynomolgus, have received AFB1 i.p. (0.125 to 0.25 mg/kg) and/or p.o. (0.1 to 0.8 mg/kg) for 2 months or longer, and 12 are currently alive and without evidence of tumor. Thirteen of the 35 monkeys necropsied to date (37%) developed one or more malignant neoplasms, yielding an overall tumor incidence of 28%. Five of the neoplasms were primary liver tumors (2 hepatocellular carcinomas and 3 hemangioendothelial sarcomas), and 2 cases of osteogenic sarcoma were found. Other tumors diagnosed were 6 carcinomas of the gall bladder or bile duct, 3 tumors of the pancreas or its ducts, and one papillary Grade I carcinoma of the urinary bladder. The tumors developed in animals receiving an average total AFB1 dose of 709 mg (range, 99 to 1354 mg) for an average of 114 months (range, 47 to 147 months). Fifteen of the 22 necropsied monkeys (68%) without tumor showed histological evidence of liver damage, including toxic hepatitis, cirrhosis, and hyperplastic liver nodules. These animals had received an average total AFB1 dose of 363 mg (range, 0.35 to 1368 mg) for an average of 55 months (range, 2 to 141 months). Our results indicate that AFB1 is a potent hepatotoxin and carcinogen in nonhuman primates and further support the hypothesis that humans exposed to this substance may be at risk of developing cancer.
 ...
PMID:Induction of osteogenic sarcomas and tumors of the hepatobiliary system in nonhuman primates with aflatoxin B1. 11 76

Pure giant cell carcinoma of the liver is a rare tumor that is usually associated with cirrhosis. Its occurrence in a young woman without evidence of cirrhosis, and in association with two other uncommon tumors, is described in this report.
 ...
PMID:Giant cell carcinoma of the liver: occurrence in a patient with ileal carcinoid, medullary breast carcinoma and pulmonary aspergillosis. 11 25

Thirty-nine patients with focal defects on the technetium liver scan were rescanned using 111-In chloride. Of 20 patients with hepatic malignancy, 11 had positive indium scans. None of the 19 with focal cirrhotic fibrosis had a positive indium scan although 5 of these had primary tumor. Thus, a positive indium scan suggests that the defect is malignant. A negative indium scan is less helpful, failling to distinguish between neoplasm and focal cirrhosis. Positive uptake in an extrahepatic primary neoplasm and negative uptake in the liver suggest that the hepatic lesion is not neoplastic.
 ...
PMID:Experience with 111-In-chloride scanning in patients with focal defects on 99-mTc-sulfur colloid liver scans. 16 25

Two adult patients died from mixed hepatic tumors of the liver with metastasis. The outstanding findings in both patients were a long clinical course, roentgenologically identifiable calcification of the tumors, and, in one, hypertrophic osteoarthropathy and spider angiomas. Mixed hepatic tumors are rare in adults, only 14 possible previous cases have come to our attention. The mixed hepatic tumors of adults are morphologically different from the more common mixed hepatoblastomas of infancy and childhood. Calcification in a slow-growing tumor in an adult without cirrhosis may indicate a mixed hepatic tumor.
 ...
PMID:Calcified mixed malignant tumor of the liver. 16 73

Alpha-fetoprotein (AFP) is an alpha1-glycoprotein (M.W. about 65000) appearing in the fetal serum of most mammals including man during the early stages of pregnancy; 4 weeks after birth it disappears altogether or exists at very low concentrations as in the normal adult. AFP is formed in the yolk sac, the fetal liver and the gastro-intestinal tract. One of its physiological functions in fetal life is supposed to be the protection of the fetus from maternal oestrogens (oestrophilic property). The clinical significance of AFP is based on the regular and increasing production in primary liver cell carcinoma, less frequently in teratogenetic tumors where it serves as a control of therapy and course of the disease. Less frequent, minor and temporary increases in the AFP serum level occur in several primary tumors with secondary liver involvement, and in inflammatory gastro-intestinal diseases, e.g. of the liver (hepatitis, cirrhosis). AFP has an increasing importance in gynecology (gestational age, fetal distress syndrom, malformations, hydatidiform mole/chorion carcinoma). The physico-chemical properties of AFP are widely known. Both fetal and tumor AFP appear to be immunologically and biochemically identical, as are that of tissue and biological fluids. The differences observed (variants, microheterogeneity) depend mainly on the different content of sialic acid. An antigenetic relationship exists, between the AFP of most species. The immunodiffusion (Ouchterlony) is the most frequently used but relatively insensitive test (1-5 mug/ml) in finding AFP, whereas the radioimmunoassay is the most sensitive one (up to 0,25 ng/ml) and permits the determination of normal serum levels in adults (below 20 ng/ml). The serum concentration in healthy pregnant women lies up to 500 ng/ml, in patients with hepatitis, liver cirrhosis and other liver diseases mostly under 3 mug/ml, whereas in those with primary liver cell carcinoma levels up to and above 600 mg-percent have been found.
 ...
PMID:[Carcinofetal antigens. I. alpha-fetoprotein (author's transl)]. 16 80

When 200 mg of diethylnitrosamine per kg of body weight was administered with a stomach tube once a week to female Wistar W.64 rats, all of them died within three weeks from severe hepatocellular injuries and haemorrhages of the liver, lungs and small intestine. Weekly administrations of 100 mg per kg of body weight consistently caused the rats to die after seven to fifteen weeks from severe hepatic cirrhoses characterized by large tubercles. Weekly doses of 50 mg per kg of body weight caused much less severe hepatic cirrhosis. Under these conditions death occurred after 17 to 23 weeks, all the rats having contracted multiple hepatocellular carcinomas and in most cases pronounced hepatic cirrhosis. When this amount of diethylnitrosamine was administered for twelve weeks only the hepatic cirrhosis was less apparent, but a substantial influence on the tumor development was not observed. After a reduction of the dose to 25 mg per kg of body weight once a week all the rats in the relevant group died after 26 to 35 weeks, likewise from multiple hepatocellular carcinomas. Hepatic cirrhosis were then relatively inconspicuous. Similar results were obtained when, not the dose, but the interval between doses (100 mg/kg each) was varied. This clearly differential effect of diethylnitrosamine in the rat thus makes it a simple matter to induce hepatic cirrhosis or cancers that are suitable for a variety of tests and also, for example, as models for therapy trials.
 ...
PMID:Effect of diethylnitrosamine on the livers of rats after high oral doses administered at intervals varying between three and twenty-four days. 16 50

Studies were made on the oncogenic response of 3086 young chicks to i.v. inoculation of MC29 avian leukosis virus from blood plasma of previous-passage birds or the supernatant fluid of cultures of chick embryo cells infected with strain MC29. Among the large variety of neoplasms of other tissues previously described, there occurred a high incidence of primary growths of the liver. Pathomorphology of the growths frequently differed greatly in both different hosts and the same bird, but some uniformity of the types of neoplasms was evident in many animals. Despite much variation in histopathology, the large proportion of growths could be grouped in several distinctive categories. Examinations by light and electron microscopy provided evidence of derivation of the tumors by alteration of hepatocytes originating principally in the portal regions as indicated by forms transitional from the parenchymal cells to the cells of the different types of growths. Neoplastic aspects of the growths were evident by infiltration and invasion of adjacent tissues, penetration of blood vessels, transplantability to other avian hosts (described in another report), and metastasis to distant organs including the lung, kidney, and spleen. There was no evidence of tumors arising from the biliary system, and growths of cells resembling the biliary type could be traced to altered hepatocytes. None of the findings suggested conversion of biliary-type cells to hepatocytes. Continued growth resulted in anaplastic and metaplastic changes in cell morphology and structural organization and in the formation of cartilage, osteoid, and sarcoma-like spindle-cell tumors of probable epithelial origin. Development of the growths wasnot associated with cirrhosis, and necrosis was limited to infrequent disseminated, essentially unicellular changes or necrobiosis of small groups of cells. The marked variations in the type of virus-induced growths demonstrated the remarkable capacity of cells morphologically inidistinguishable from the hepatocytes for the most diverse alterations in cell structure and tissue organization. This neoplastic response of hepatocytes to the MC29 strain constitutes the only demonstration thus far of the specific hepatocarcinogenic activity of an avian tumor virus.
 ...
PMID:Neoplastic response of the avian liver to host infection with strain Mc29 leukosis verus. 16 81


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>