Concentration of beta2-microglobulin and percentage of CD4 lymphocytes in peripheral blood in patients with chronic HCV infection during IFN-alpha therapyTadeusz Wojciech Łapiński, Aldona Kot, Danuta Prokopowicz
Med Sci Monit 2002; 8(7): CR538-542 :: ID: 510717
Background: We evaluated the serum β2,-MG concentration and CD4 lymphocytes in the blood of HCV infected patients during IFN-α therapy, searching for a correlation between β2,-MG concentration, CD4 lymphocytes, and therapy effectiveness, as well as morphological changes in the liver.
Material/Methods: patients with chronic HCV infection were treated with IFN-α2a. The serum β2,-MG concentration was measured with the use of a method based on the fluorescent modification of the immunoenzymatic technique. The percentage of T CD4 lymphocytes in the blood was measured by direct immunofluorescence using monoclonal antibodies.
Results: The number of CD4 lymphocytes in the blood was lower in the HCV infected patients (864/ml; preferred values from 1,300 to 2,100/ml), the β2,-MG concentration was elevated (2.37 mg/dl) in comparison to the preferred values (1.52 mg/dl; p<0.05). IFN-α therapy caused an increase in the β2,-MG. The highest increase was observed among patients who did not eliminate the virus (from 2.39 to 4.10 mg/dl). In the initial period of interferon therapy an increase was observed (from 729 to 1082/ml) in the number of CD4 lymphocytes among those patients who eliminated the virus and a decrease (from 947 to 853/ml) in the patients who were not treated successfully.
Conclusions: A significant increase in β2,-MG during interferon therapy in patients with chronic HCV infection is a predictor of poor outcome. An increase in the number of CD4 lymphocytes in the initial phase of treatment suggests a positive outcome.
Keywords: IFN-α therapy, HCV infection, β2-MG
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