[Desoxyribonuclease I activity of the hepato-splenic and cerebral tissue of rats during experimental infection with encephalomyocarditis virus].
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Biomedical subjects
Publications and source records attributed to L Cacciatore.
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A series of clinical steps in the severity of chronic liver disease (CLD) has been arranged to represent the case history of chronic active hepatitis and cirrhosis retrospectively. The 'steps' in such series of clinical stages have been chosen on the basis of physiopathological considerations, the state of health of the patients, and their ability to work. For every 'step' the laboratory findings were studied in order to verify the hypothesis that a laboratory case history exists, which is parallel to the clinical history of CLD. With the exception of serum albumin and, to a lesser extent, sulfobromophthalein-ki, which seem to reflect the progressive deterioration in hepatocellular function, the results suggest that most conventional tests do not seem to be of any value in monitoring a CLD patient in cases where the diagnosis is already known, whereas a physical examination provides a physician with more, and cheaper, information than laboratory tests.
Three cases of secondary gastric lymphoma are presented in which diagnosis was suggested by ultrasound (US) and confirmed by endoscopy and microscopical examination. Three different US patterns are illustrated and compared with endoscopy. US findings paralleled endoscopy during follow-up under antiblastic treatment: both improvement and lack of change in the gastric lesions were reliably predicted by US.
Neopterin is a pyrazino-pyrimidine compound which is biosynthesized by macrophages. Increased concentrations of neopterin have been reported in conditions causing stimulation of cellular immunity, such as viral and other infections, graft versus host disease, autoimmune diseases and different malignancies. Recently, increased urinary neopterin levels have been found in patients with acute viral hepatitis and NANB chronic hepatitis. In the present study, neopterin serum levels were measured in 23 cirrhotic patients (6 HBV related, 7 alcoholic and 10 cryptogenetic cirrhosis) and in 24 normal subjects. Mean values of serum neopterin were statistically increased in cirrhotics (3.92 +/- 3.28 ng/mL versus 1.24 +/- 0.51 ng/mL in controls, p less than 0.01). Serum neopterin values were not statistically different either in cirrhotics assessed in three different classes according to Child's classification or in cirrhotics with or without serological findings of active disease. In fact, in cirrhotic patients, serum neopterin levels did not correlate with serum aspartate and alanine aminotransferases, alkaline phosphatase, gamma-glutamyltransferase and gammaglobulins values. These data show that increased levels of serum neopterin occur in cirrhotic patients, but there is no relation between serum neopterin values and the histological activity or the clinical severity of the disease. The results are consistent with the hypothesis that activated macrophages are involved in all forms and in all stages of liver cirrhosis.
Neopterin is a pyrazino-pyrimidine compound which is biosynthesized by macrophages. Increased concentrations of neopterin have been reported in conditions causing a stimulation of cellular immunity, such as viral and other infections, graft versus host disease, autoimmune disease and different malignancies. Recently, urinary neopterin levels have been found increased in patients with acute viral hepatitis and NANB chronic hepatitis. In the present study, neopterin serum levels have been measured in 23 cirrhotic patients (6 HBV related, and 17 cryptogenetic cirrhosis, 7 of them occurring in alcoholic subjects) and in 24 normal subjects. Mean values of serum neopterin were significantly increased in cirrhotics (3.92 +/- 3.28 ng/ml versus 1.24 +/- 0.51 ng/ml in controls, p less than 0.01). Serum neopterin values were not found to be significantly different in cirrhotics assessed in three different clinical classes according to Child's classification and in cirrhotics with and without serological findings of active disease. In fact, in cirrhotic patients, serum neopterin levels did not correlate with the values of serum AST, ALT, ALP, GGT and gamma-globulin. These data show that increased levels of serum neopterin occur in cirrhotic patients, but there is no relation between serum neopterin values and the activity or the clinical severity of the disease. The results are consistent with the hypothesis that activated macrophages are involved in all stages of liver cirrhosis irrespective of its aetiology.
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