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Enhanced phenotypic expression of alpha-1-antitrypsin deficiency in an MZ heterozygote with chronic hepatitis C.
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A middle-aged white man of Scotch-Irish ancestry, being treated for chronic hepatitis C, was found to be heterozygous for alpha1-antitrypsin deficiency (PiMZ phenotype) after diagnostic PAS-positive, diastase-resistant globules were detected in a liver biopsy. The globules had not been present in a
Mallory-Denk Bodies in chronic hepatitis.
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Mallory-Denk Bodies (MDB) are important as investigators, suggesting MDB as an indicator of the histologic severity of chronic hepatitis, causes of which include hepatitis C, primary biliary cirrhosis (PBC), and nonalcoholic fatty liver disease (NAFLD). Matteoni et al scored MDB in patients with
Number of portal tract macrophages correlates with the modified hepatic activity index in chronic hepatitis C infection.
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The Ishak modified hepatic activity index (mHAI) is widely used to score disease activity in chronic hepatitis C infection. However, the scoring of the mHAI components is subjective and prone to interobserver variation. Liver injury results in increased numbers of portal tract macrophages, which are
Diverticular bile duct lesion in chronic active hepatitis.
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Liver needle biopsies from patients with non-A, non-B chronic active hepatitis and so-called abnormal bile duct epithelium were studied with a three-dimensional method. Photographs of bile duct structures in serial sections were transferred to acrylic plates. Five bile duct lesions of a not
[Histological characteristics of chronic hepatitis C in biopsy material].
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OBJECTIVE
Hepatitis C virus (HCV) infection is one of the most important diseases with high chronicity rate (50-80%) leading to end-stag cirrhosis and hepatocellular carcinoma. Hepatic histology shows a characteristic but not diagnostic picture. The aim of this study was to evaluate the
Detection of alpha-1-antitrypsin in hepatocytes in acute and chronic hepatitis.
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Twelve of sixteen consecutive needle biopsies of liver with either acute or chronic hepatitis showed positive immunohistochemical staining for alpha-1-antitrypsin (AAT). Only two of the positive biopsies contained numerous, large periodic acid-Schiff positive, diastase resistant (PAS-D) globules in
Cytoplasmic inclusion bodies and minimal hepatitis: fibrinogen storage without hypofibrinogenemia.
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A 12-year-old Japanese boy had chronic elevation and fluctuation of serum transaminase levels since infancy, with no signs or symptoms of liver failure. Usual infections or metabolic disorders were eliminated from consideration. No coagulopathy or abnormality in plasma concentrations of clotting
Neonatal hepatitis--an autopsy study of 14 cases.
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Fourteen autopsy cases of neonatal hepatitis have been studied. Of these seven cases were due to infections viz.: cytomegalovirus infection (four cases), probable cases of congenital syphilis (two cases) and neonatal herpes (one case). The remaining seven cases were of Idiopathic Neonatal Hepatitis
Structural and immunoreactive characteristics of hepatitis B core antigen.
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The ultrastructural study of liver tissues from 38 patients with type B viral hepatitis consistently showed the presence of hepatitis B core antigen of 21-25 nm size in the liver cell nuclei and to a lesser extent in the cytoplasm. This finding and the demonstration of the tubular form of hepatitis
Neonatal hepatitis induced by alpha 1-antitrypsin: a transgenic mouse model.
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Transgenic mouse lineages were established that carry the normal (M) or mutant (Z) alleles of the human alpha 1-antitrypsin (alpha 1-Pi) gene. All of the alpha 1-Pi transgenic mice expressed the human protein in the liver, cartilage, gut, kidneys, lymphoid macrophages, and thymus. The human M-allele
Hyaline droplets in Kupffer cells: a novel diagnostic clue for autoimmune hepatitis.
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Pediatric autoimmune hepatitis (AIH) is relatively common and has a characteristic but relatively nonspecific histopathology with a usually prominent lymphoplasmacytic infiltrate. Herein, we describe for the first time the presence of characteristic hyaline droplets in the cytoplasm of Kupffer cells
[The value of the Pi system phenotype in alpha 1-antitrypsin deficiency].
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One-hundred-and-ten children between the ages of two months and 14 years with the following liver diseases were studied: 16 with acute viral hepatitis, 8 with persistent chronic hepatitis, 31 with active chronic hepatitis, 5 with hepatic steatosis, 11 with cirrhosis of the liver, 24 with newborn
Ground glasslike hepatocytes produced by glycogen-membrane complexes ("glycogen bodies").
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A 54-year-old man developed liver disease 11 months after renal transplantation. Liver biopsy demonstrated hepatitis with numerous periodic acid-Schiff-positive, diastase-sensitive ground glass inclusions in parenchymal cells. Electron microscopy revealed that the inclusions consisted of parallel
Alpha-1-antitrypsin deficiency in adults.
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A clinicopathological examination was carried out on eight adult patients with alpha-1-antitrypsin (ATT) deficiency. Phenotyping confirmed five patients with PiMZ, two patients with PiZ-, and one patient with PiZZ. Cirrhosis was found in six of the patients, four of whom had a history of excessive
Liver disease in infancy: histological features and relationship to alpha-antitrypsin phenotype.
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Sixty-nine specimens of liver tissue from 53 infants with neonatal hepatitis or its sequelae were examined without knowledge of the alpha1-antitrypsin phenotype. Distinctive, diastase-resistant, PAS-positive, pure magenta-coloured, sharply defined globules, 2-20 microns in diameter were found in
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