Héverton Zambrini

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BACKGROUND Cytotoxic T lymphocyte-associated factor 4 (CTLA-4) functions as a negative regulator of T cell-mediated immune response. Molecular changes associated to CTLA-4 gene polymorphisms could reduce its ability to suppress and control lymphocyte proliferation. AIMS To evaluate the frequency of CTLA-4 gene polymorphisms in chronic hepatitis C virus(More)
Association between autoimmune thyroid diseases (AITD) and hepatitis C is controversial, but may occur or worsen during alpha-interferon treatment. The mechanism responsible for autoimmune diseases in infected patients has not been fully elucidated. This study aims to evaluate the frequency of AITD in chronic hepatitis C and the association of chemokine(More)
We describe the case of a female patient who presented a condition of dengue hemorrhagic fever that evolved with jaundice and significant coagulation abnormalities. Dengue was diagnosed through the presence of anti-dengue IgM antibodies (MAC-ELISA). This disease needs to be taken into consideration in the differential diagnosis for acute febrile jaundice.(More)
We describe the case of a female patient who presented a condition of dengue hemorrhagic fever that evolved with jaundice and significant coagulation abnormalities. Dengue was diagnosed through the presence of anti-dengue IgM antibodies (MAC-ELISA). This disease needs to be taken into consideration in the differential diagnosis for acute febrile jaundice.
OBJECTIVE To characterize thyroid disturbances induced by interferon-alpha and ribavirin therapy in patients with chronic hepatitis C. INTRODUCTION Interferon-alpha is used to treat chronic hepatitis C infections. This compound commonly induces both autoimmune and non-autoimmune thyroiditis. METHODS We prospectively selected 26 patients with chronic(More)
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