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  • Title: Serum neopterin levels in liver cirrhosis.
    Author: Antoniello S, Russo M, Bizzarro A, Auletta M, De Bellis A, Magri P, Russo P, Dell'Aquila A, Cacciatore L.
    Journal: J Biol Regul Homeost Agents; 1989; 3(4):159-62. PubMed ID: 2638148.
    Abstract:
    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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