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  • 1
    ISSN: 1573-2568
    Keywords: VASCULAR ENDOTHELIAL GROWTH FACTOR ; ACUTE HEPATITIS ; FULMINANT HEPATITIS ; VARIOUS LIVER DISEASES ; HEPATOCYTE GROWTH FACTOR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The clinical significance of circulatingvascular endothelial growth factor (VEGF) in patientswith various liver diseases was investigated. Twenty-onepatients with acute hepatitis (AH), 40 with chronic hepatitis (CH), 34 with cirrhosis (LC), 16 withfulminant hepatitis (FH), 10 with primary biliarycirrhosis (PBC), 12 with autoimmune hepatitis (AIH), and120 healthy individuals were included. Serum VEGF levels were measured by a chemiluminescenceenzyme-linked immunosorbent assay. The mean values ofserum VEGF levels in the patients with AH, CH, LC, FH,AIH, PBC, and control were 172.7, 58.0, 44.1, 37.3, 49.7, 74.9, and 65.0 pg/ml, respectively. Thepatients with AH had a level of serum VEGF significantlyhigher than that of the control group (P 〈 0.001).The serum VEGF levels in survivors of FH weresignificantly increased, but not in the nonsurvivors in therecovery phase compared with the levels on admission (P〈 0.05). In the LC patients, serum VEGF levels weresignificantly lower than those of the control group (P 〈 0.05). These findings suggest thatserum VEGF level may be associated with hepatocyteregeneration grade.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1860-1499
    Keywords: Hepatocellular carcinoma ; Tumor grade ; Ultrastructure ; Morphometry ; Cell organelles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In 31 cases of hepatocellular carcinoma, electron microscopic observation and morphometry on the cell organelles were carried out to evaluate the usefulness of electron microscopy for the diagnosis of well differentiated hepatocellular carcinoma. The cell organelles in well differentiated tumor cells were very similar to those in normal hepatocytes or hepatocytes with liver cirrhosis (LC). We found that in poorly differentiated tumor cells, the nuclear area, N/C ratio, nucleolar area, the amount of dispersed chromatin, and the number of free ribosomes had increased, but the cellular area, degree of nuclear roundness, and mitochondrial area had decreased. These results seem to indicate that electron microscopy is not as useful as light microscopy in the diagnosis of well differentiated hepatocellular carcinoma, but is useful in the study of poorly differentiated tumor cells, which indicated that the cell proliferation through mitoses was activated.
    Type of Medium: Electronic Resource
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