Conditions for isolation and study of enzymic properties of human liver mitochondria.
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Biomedical subjects
Publications and source records attributed to S Dancea.
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Clinical, radiological, histological and biochemical aspects of two cases of cerebro-hepato-renal syndrome (CHRS) are reported. CT scan disclosed a demyelinating process and gyral abnormalities reflecting the observed neuropathological findings. Trilamellar and lamellar inclusions were found in brain astrocytes, hepatic mesenchymal and adrenal cells. The morphologic features of these inclusions are similar to those observed in childhood adrenoleukodystrophy, neonatal adrenoleukodystrophy and infantile Refsum's disease. In the two CHRS patients, increased plasma levels of very long chain fatty acids (C26:1, C26:0) and phytanic acid were in the same range as those observed in seven other instances of neonatal adrenoleukodystrophy. The presence of increased plasma levels of phytanic acid in these disorders suggests that phytanate oxidase activity is, at least, partially located in peroxisomes.
Studying a series of 30 children with chronic gastritis (diagnosed by optic fiber gastroscopy and by mucosal biopsy), authors have founded important changes of the superficial mucosa and gastric glands. The histologic changes could explain the well-known functional alterations in chronic gastritis. They discussed also a possible immuno-pathogenic mechanism for these mucosal ultrastructural changes.
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During the last decade an increased incidence of the adverse reactions to drugs with liver involvement was found. The liver lesions produced by drugs constituted a constant concern. We followed the course of liver disease produced by tuberculostatics, cytostatics, antidepressive, antibiotics, narcotics, antirheumatics, by biochemical, immunological and morphological investigations (needle biopsy of the liver with optical and electronic microscopy). The pattern of the damage to the liver ranges from minimal functional changes to severe aspects with cytolysis and cholestasis. Hypersensitivity to drugs (cutaneous eruption, rash, fever, eosinophilia) were observed only in three cases. The cholestatic clinical form was the most frequently encountered, raising problems of differential diagnosis with acute viral hepatitis and obstructive jaundice. Clinical evolution of drug induced hepatic lesions is favourable as soon as the administration of drug is arrested. Chronic evolution, as reported in the literature when the administration of hepatotoxic drug is continued, was noted only in one patient who was using Chlorpromazine.
Pathological calcifications of skin manifest as small or large deposits of calcium in the dermis and subcutaneous tissues. One form of these conditions is described as subepidermal calcified nodule seen on the facial skin of young children without any underlying connective tissue disease or any abnormality in calcium or phosphorus metabolism. The oral cavity is rarely affected. Recently, two cases were reported in the oral mucosa and the term "mucosal calcified nodule" was coined for such an entity. We report another case of such a process involving the oral mucosa of a 5-month-old infant who presented with an enlarging lesion at the junction of the hard and soft palate.