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Biotecnologia Aplicada
Elfos Scientiae
ISSN: 0684-4551
Vol. 14, No. 4, 1997, pp. 242-247
Bioline Code: ba97054
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Biotecnologia Aplicada, Vol. 14, No. 4, 1997, pp. 242-247

 en
Soler, Enrique Arus; Velazquez, Mirta Infante; Padron, Guillermo J.; Menendez, Maria G. Morales; Oramas, Bienvenido Gra; Arguelles, Grisel Soto & Lopez-Saura, Pedro

Abstract

Of 22 patients with serologic (anti-HCV +), biochemical (alanine- aminotransferase - ALAT > twice the normal) and histological diagnosis of chronic hepatitis C, 11 were randomly assigned to receive recombinant interferon (IFN) alpha-2b (Heberon alfa R), 3 x 106 IU 3 times per week during 9 months. The rest had no specific therapy. Monthly serum ALAT measurements were made up to 9 months after the end of the treatment. At this moment a second liver biopsy was made to the IFN-treated patients. There was normalization of ALAT in 10 patients in the IFN group (91 %) and in 1 control group patient (9 %; p = 0.0006). Considering patients with chronic active hepatitis there was 80 % normalization in the IFN group vs. 11 % in the control (p = 0.023). Seven patients of the IFN group had relapses during the follow-up. Four IFN-treated patients had histological improvement, 2 had worsening, and there was no change in other 3. One patient had anti-IFN antibodies before treatment. Two patients developed anti-IFN antibodies after treatment, with neutralizing capacity in one of them, possibly related with the unfavorable evolution observed in this case. Serum IFN was not detected in any patient.

Keywords
recombinant interferon alpha-2b, chronic hepatitis C, anti-IFN antibodies

 
 es Interferon alfa-2b recombinante en hepatitis C cronica: Resultados del tratamiento y determinacion de anticuerpos anti-interferon
Soler, Enrique Arus; Velazquez, Mirta Infante; Padron, Guillermo J.; Menendez, Maria G. Morales; Oramas, Bienvenido Gra; Arguelles, Grisel Soto & Lopez-Saura, Pedro

Resumen

De 22 pacientes con diagnostico serologico (anti-VHC +), bioquimico (alanina-aminotransferasa - ALAT > 2 veces lo normal) e histologico de hepatitis C cronica, 11 fueron asignados aleatoriamente para recibir interferon (IFN) alfa-2b recombinante (Heberon alfa R), 3 x 106 UI 3 veces/semana durante 9 meses. El resto no tuvo tratamiento especifico. Se controlo la ALAT mensualmente hasta 9 meses despues de finalizar el tratamiento, momento en que se realizo una segunda biopsia hepatica a los pacientes del grupo IFN. Hubo normalizacion de la ALAT en 10 pacientes del grupo IFN (91 %) y en uno del grupo control (9 %; p = 0,0006). Entre los pacientes con hepatitis cronica activa hubo 80 % de normalizacion en el grupo IFN y 11 % en el control (p = 0,023). Siete pacientes del grupo IFN tuvieron recaidas durante el seguimiento. Hubo mejoria histologica en 4 pacientes tratados con IFN, empeoramiento en 2 y no hubo modificacion en otros 3. Un paciente tenia anticuerpos anti-IFN antes del tratamiento. Dos desarrollaron anticuerpos anti-IFN despues del tratamiento, con capacidad neutralizante en uno de ellos, posiblemente relacionados con la evolucion desfavorable de ese caso. En ningun paciente se detecto IFN en suero.

Palabras-clave
interferon alfa-2b recombinante, hepatitis C cronica, anticuerpos anti-IFN

 
© Copyright 1997, Elfos Scientiae
Alternative site location: http://elfosscientiae.cigb.edu.cu/Archivo.asp?Id=6

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