Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019204 (hepatocellular carcinoma)
 71,386 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The influence of hepatitis B virus infection, alcohol consumption, tobacco smoking and use of oral contraceptives on the risk of hepatocellular carcinoma (HCC) was evaluated in a hospital-based case-control study in Catalonia, in the Mediterranean coastal area of north-eastern Spain. A total of 96 HCC cases (86.5% of them with associated liver cirrhosis) and 190 age- and sex-matched controls were studied. The odds ratio of HCC and 95% confidence interval among hepatitis B surface antigen (HBsAg) carriers was 4.9 (1.3-21.9). The OR was not significantly elevated in smokers, and a marginally significant increased risk was found among users of oral contraceptives based on 6 female cases. There was a significant dose-response relationship between alcohol consumption and risk of HCC (chi 2 for trend: 24.3, p less than 0.001). Although hepatitis B infection was strongly associated with HCC, alcohol abuse leading to cirrhosis appears to be one of the main causes of HCC in this region.
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PMID:Risk factors for hepatocellular carcinoma in Catalonia, Spain. 216 42

We analyzed the clinical-diagnostic features of 67 cases of hepatocellular carcinoma (HCC) collected from June 1981 to December 1985. The male-to-female ratio was 3.4:1, the average age was 66.7 years; alcohol abuse was present in 38 cases (56.7%); HbsAg positivity was present in 10 of 62 patients (16.1%); the alpha-fetoprotein (AFP) level was greater than 500 ng in 17 of 61 patients (28%) and normal in 24 of 61 (39.3%). Concomitant cirrhosis was found in 51 patients (76.1%). The median survival of the whole group was of 10 weeks from diagnosis. The clinical suspicion of HCC was arisen by ultrasound (US) and the diagnostic was confirmed cytologically in 57 patients out of 60 who underwent ultrasonically guided fine-needle biopsy (UG-FNB), with a sensitivity of 95% and specificity of 100%. In 7 cases (including the 3 false-negative FNB), the diagnosis was made by laparoscopic biopsy and, in 3 cases, on autopsy. US identified a single tumor in 27 cases (40.3%); 7 were smaller than 5 cm. Only 4 patients (5.9%) were considered for surgery. We conclude that the cirrhotic patients (above all those HbsAg positive) constitute a high-risk group requiring periodic (every 3 months) US examination. To confirm the HCC, we believe in the high diagnostic accuracy of UG-FNB, whereas laparoscopy should be confirmed to the cases where FNB gives a doubtful false-negative result or to complete the presurgical staging.
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PMID:Clinical and diagnostic features of 67 cases of hepatocellular carcinoma. 243 9

Hepatocellular carcinoma (HCC) is a rapidly fatal neoplasm of high worldwide prevalence. Fibromellar carcinoma (FLC), a variant of HCC, lacks the dismal prognosis of "ordinary" HCC (O-HCC) and is characterized by a diagnostic histologic appearance. The current study analyzes the clinical characteristics, immunohistochemistry, and treatment of nineteen cases of FLC. These data, together with a detailed review of the literature, further characterize this unique variant. FLC affects younger patients and lacks the male predominance of O-HCC. Also, FLC lacks specific association with cirrhosis, hepatitis B virus infection, use of oral contraceptives, and alcohol abuse, all of which are implicated in other hepatic tumors. This, along with differences in serum tumor marker prevalence (AFP, B12 binding protein) suggests that its pathogenesis differs from that of O-HCC. Despite these differences, FLC shares a common differentiation with O-HCC. The increased amounts in FLC of stainable alpha-1-antitrypsin, fibrinogen, and C-reactive protein, all of which are acute phase reactants and normal hepatocyte products, implies better differentiation of FLC cells. Finally, the better prognosis of FLC is supported by this study, since only two of the 19 patients died because of tumor. This contrasts with the reported survival of patients with O-HCC, usually measured in weeks. Hepatic transplantation may hold promise for future patients with "surgically unresectable" FLC as procedure-related complications are overcome.
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PMID:Fibrolamellar carcinoma of the liver: an immunohistochemical study of nineteen cases and a review of the literature. 245 77

All the cases of proven hepatocellular carcinoma seen at Westmead Hospital, Sydney between January 1980 and the end of 1987 were reviewed. Hepatitis B infection was the major predisposing condition. Six patients had taken significant doses of sex steroids. Seventeen of the patients were cirrhotic at the time of diagnosis and in seven of these there was a significant history of alcohol abuse. AFP was elevated in only 15 of the 34 patients. Multiple regression analysis revealed that the single, independent determinant of a raised AFP level was found to be presence of Hepatitis B infection. Resection was possible in 10 patients. In the last ten months, seven patients have been treated by embolisation of the tumour with Adriamycin bonded to lipidol. Survival was influenced by the presence or absence of cirrhosis but not by evidence of Hepatitis B infection. The prognosis for patients with hepatocellular carcinoma in Australia is as dismal as it is in any other country. Although a rare tumour its incidence may well increase as the community now contains relatively greater numbers of immigrants from areas where the risk of developing a hepatocellular carcinoma is higher and because of the number of drug addicts who are frequently exposed to Hepatitis B infection. With the exception of patients with Hepatitis B infection, screening with AFP holds little promise in the Caucasian community.
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PMID:Hepatocellular carcinoma in western Sydney. 246 Nov 43

An analysis of 242 patients with a hepatocellular carcinoma (HCC) has shown that 65 patients without a hepatitis B virus (HBV), alcohol abuse, or a transfusion history and 17 posttransfusion patients had a mean death age of 65.5 +/- 10.2 and 62.1 +/- 8.4 years respectively. The average age of 65 patients was 8.5 years older than those with a HBV and without a alcohol abuse history. Of 17 patients, 3 with a HBV had a mean death age of 55.3 +/- 10.8 years and the interval time from transfusion to a HCC was significantly shorter than in other post-transfusion patients.
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PMID:[Clinical analysis of patients with hepatocellular carcinoma with non-A, non-B hepatitis virus]. 254 48

Metastatic patterns of hepatocellular carcinoma (HCC) in 6997 autopsy cases recorded in the Annual of the Pathological Autopsy Cases in Japan from 1981 to 1984 were analyzed by using a computer. Significant association of the metastatic pattern of hepatocellular carcinoma with age and sex was shown after separating patients into different age groups in pack years. It was especially worthy of notice that bone metastasis decreased in an age-dependent manner only in men within the widest age range (P less than 0.001) and was significantly prevalent in men in their forties and fifties (P = 0.012). In addition, in 350 cases of hepatocellular carcinoma autopsied at Tokyo University Hospital during 15 years from 1971 to 1985, it was suggested that bone metastasis might be prevalent in male patients with liver cirrhosis although significant relationship between bone metastasis and hepatitis B virus infection or alcohol abuse was not shown. These results might indicate possible effects of sex differences on the metastatic pattern of hepatocellular carcinoma, particularly bone metastasis, as well as on the incidence of the cancer.
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PMID:Age and sex differences in bone metastasis of hepatocellular carcinoma in Japanese autopsy cases. 254 98

During the period between January 1980 and December 1987, 229 male and 39 female adult patients with primary hepatocellular carcinoma (HCC) were hospitalized in our unit. Radical hepatic resection was carried out in 90 (39.3%) males and 17 (43.6%) females in whom no specific cancer treatment had been attempted preoperatively. The 1-, 3-, and 5-year survival rates in the male and female patients were 78% and 70%, 45% and 52%, and 19% and 52%, respectively. The difference was significant after 47 months. No substantial differences were found between the two groups with respect to age, preoperative clinical condition and laboratory data, method of liver resection, postoperative morbidity and mortality, postoperative adjuvant chemotherapy, and histopathology of HCC and the liver. Only the incidence of alcohol abuse was significantly different, being higher in male than in female patients. However, the survival analysis demonstrated that alcohol abuse had had no influence on recurrence rate and long-term survival in either male or female patients. As a control, survival was analyzed for the patients with similar clinicopathological background but without HCC who had undergone distal splenorenal shunt for esophageal varices. There was no significant difference between the male and female patients. The current clinical results seems to support our hypothesis based upon sex hormone receptor studies that HCC may be androgen-dependent.
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PMID:Better survival in women than in men after radical resection of hepatocellular carcinoma. 255 86

One hundred consecutive cases of hepatocellular carcinoma (HCC) in cirrhosis observed at autopsy were studied and their pathological aspects were compared with those reported in the literature. The results, which are representative of HCC epidemiology in a geographical area where cirrhosis is mostly due to alcohol abuse, show that similarities in the architectural pattern of HCC and weight of the liver exist between our material and samples with different aetiology and epidemiology. A relationship between the histological grade of HCC and its propensity to metastasize was demonstrated. The reported better prognosis of clear cells per se could not be confirmed, although clear cell HCC occurred exclusively in grade 2. It was also demonstrated that the relationship between grading and staging was strongly influenced by the association of HCC with cirrhosis, which is a fact that is usually overlooked by the common staging (and grading) methods.
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PMID:Hepatocellular carcinoma in cirrhotic liver in Trieste. 256 53

Nonoxidative alcohol metabolism to form fatty acid ethyl esters contributes to alcohol-related end-organ damage, and these products are formed by two synthase enzymes. We recently purified the major (pI 4.9) synthase from human myocardium. The N-terminal sequence (A P Y T V V Y F P V R G R X K A L R M L X A D) is greater than 73% identical with that of a neutral (pI 6.7) detoxification enzyme, glutathione transferase P from rat hepatocellular carcinoma (P P Y T I V Y F P V R G R C E A T R M L L A D). Moreover, both the major human fatty acid ethyl ester synthase and bovine liver glutathione transferase catalyze the formation of fatty acid ethyl esters (Vmax 105 and 98 nmol per hr per mg, respectively). In addition, both enzymes catalyze the formation of glutathione-xenobiotic conjugates (Vmax 67 and 335 mol per hr per mol of enzyme, respectively). Physiological concentrations of glutathione increase the rate of formation of fatty acid ethyl esters up to 5-fold, and the glutathione transferase substrate 1-chloro-2,4-dinitrobenzene is a potent inhibitor of human myocardial fatty acid ethyl ester synthase. Thus, the identification of the major form of human myocardial fatty acid ethyl ester synthase as an acidic glutathione transferase links alcohol and xenobiotic metabolism and may relate the enhancement of tumorigenesis by alcohol abuse with carcinogen-conjugation reactions.
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PMID:Metabolism of ethanol and carcinogens by glutathione transferases. 273 99

Hepatitis B virus sequences were studied by molecular hybridization in liver biopsies from patients with HBsAg-negative chronic liver disease or hepatocellular carcinoma, collected in Italy. Among the 42 patients with chronic liver disease who had no history of drug addiction, alcohol abuse nor evidence of metabolic and autoimmune disorders, only two (5%) had HBV-DNA sequences in the liver, although 23 of them (57%) were positive for antibodies to HBV in serum. HBV-DNA was also demonstrated in integrated form in the tumorous tissue of one out of eight cases with HBsAg-negative hepatocellular carcinoma. These incidences of HBV-DNA positivity in the liver are lower than those reported from other Mediterranean areas and similar to those of North Europe, United States and Japan, suggesting that etiologic factors other than HBV are responsible for the majority of HBsAg-negative chronic liver diseases in our region.
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PMID:HBV-DNA sequences are rarely detected in the liver of patients with HBsAg-negative chronic active liver disease and with hepatocellular carcinoma in Italy. 282 61


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