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Chronic hepatitis C: hepatic iron content does not correlate with response to antiviral therapy / Hepatite C crônica: concentração hepática de ferro não é correlacionada com a resposta ao tratamento antiviral
Pereira, Patricia da Silva Fucuta; Silva, Ivonete Sandra de Souza e; Uehara, Silvia Naomi de Oliveira; Emori, Christini Takemi; Lanzoni, Valéria Pereira; Silva, Antonio Eduardo Benedito; Ferraz, Maria Lucia Gomes.
  • Pereira, Patricia da Silva Fucuta; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
  • Silva, Ivonete Sandra de Souza e; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
  • Uehara, Silvia Naomi de Oliveira; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
  • Emori, Christini Takemi; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
  • Lanzoni, Valéria Pereira; Federal University of Sao Paulo. Department of Pathology. SP. BR
  • Silva, Antonio Eduardo Benedito; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
  • Ferraz, Maria Lucia Gomes; Federal University of Sao Paulo. Hepatitis Section. Division of Gastroenterology. SP. BR
Rev. Inst. Med. Trop. Säo Paulo ; 51(6): 331-336, Oct.-Dec. 2009. tab, ilus
Article in English | LILACS | ID: lil-539452
ABSTRACT
The complex interaction between hepatitis C virus infection, iron homeostasis and the response to antiviral treatment remains controversial. The aim of this study was to evaluate the influence of hepatic iron concentration (HIC) on the sustained virological response (SVR) to antiviral therapy in patients with chronic hepatitis C. A total of 50 patients who underwent pretreatment liver biopsy with assessment of HIC by graphite furnace atomic absorption spectroscopy and were subsequently submitted to antiviral treatment with interferon/peginterferon and ribavirin were included in the study. Patients with alcoholism, history of multiple blood transfusion, chronic kidney disease, hemolytic anemia and parenteral iron therapy were excluded. The iron related markers and HIC were compared between those who achieved an SVR and non-responders (NR) patients. The mean age was 45.7 years and the proportion of patients' gender was not different between SVR and NR patients. The median serum iron was 138 and 134 µg/dL (p = 0.9), the median serum ferritin was 152.5 and 179.5 ng/mL (p = 0.87) and the median HIC was 9.9 and 8.2 µmol/g dry tissue (p = 0.51), for SVR and NR patients, respectively. Thus, hepatic iron concentration, determined by a reliable quantitative method, was not a negative predictive factor of SVR in patients with chronic hepatitis C presenting mild to moderate hepatic iron accumulation.
RESUMO
A complexa interação entre infecção pelo vírus da hepatite C, homeostase do ferro e resposta ao tratamento antiviral permanece controversa. O objetivo deste estudo foi avaliar a influência da concentração hepática de ferro (CHF) na resposta virológica sustentada (RVS) à terapia antiviral na hepatite C crônica. Foram incluídos 50 pacientes que foram submetidos à biopsia hepática pré-tratamento com determinação da CHF por espectrofotometria de absorção atômica com forno de grafite e tratados posteriormente com interferon/peginterferon e ribavirina. Pacientes com alcoolismo, história de múltiplas transfusões sanguíneas, doença renal crônica, anemia hemolítica e terapia com ferro parenteral foram excluídos. O perfil de ferro sérico e a CHF foram comparados entre aqueles que atingiram RVS e os não-respondedores (NR). A média de idade dos pacientes foi 45,7 anos e não houve diferença na proporção de homens e mulheres entre os grupos RVS e NR. A mediana do ferro sérico foi 138 and 134 µg/dL (p = 0.9), a mediana da ferritina sérica foi 152,5 e 179,5 ng/mL (p = 0,87) e a CHF mediana foi 9,9 e 8,2 µmol/g de tecido seco (p = 0,51), para pacientes com RVS e NR, respectivamente. Concluindo, a concentração hepática de ferro, determinada por um método quantitativo confiável, não foi um fator preditivo negativo de RVS em pacientes com hepatite C crônica e acúmulo de ferro hepático leve a moderado.
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Full text: Available Index: LILACS (Americas) Main subject: Antiviral Agents / Ribavirin / Interferons / Hepatitis C, Chronic / Iron / Liver Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Sao Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Antiviral Agents / Ribavirin / Interferons / Hepatitis C, Chronic / Iron / Liver Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Sao Paulo/BR