VILMA DOS SANTOS TRINDADE VIANA
Projetos de Pesquisa
Unidades Organizacionais
LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina
6 resultados
Resultados de Busca
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conferenceObject Dyslipidemia in Juvenile Dermatomyositis: The Role of Disease Activity(2012) KOZU, Katia T.; SILVA, Clovis Artur; BONFA, Eloisa; SALLUM, Adriana M.; PEREIRA, Rosa M. R.; VIANA, Vilma S.; BORBA, Eduardo F.; CAMPOS, Lucia M. A.conferenceObject Pandemic Influenza Immunization in Primary Antiphospholipid Syndrome (PAPS): A Trigger to Autoantibody Production?(2012) MEDEIROS, Danielle M.; BUENO, Cleonice; RIBEIRO, Ana Cristina M.; CALICH, Ana L. G.; BONFIGLIOLI, Karina Rossi; VIANA, Vilma S.; CARVALHO, Jozelio F.; SILVA, Clovis Artur; BONFA, EloisaBackground/Purpose: There are scarce data suggesting that pan-demic influenza vaccination may induce antiphospholipid (APL) autoan- tibodies in inflammatory rheumatic diseases, particularly in systemic lupus erythematosus patients. However, there is no study evaluating the APL autoantibodies induction in primary antiphospholipid syndrome (PAPS) patients. The objective was to perform short and long-term evaluations of a large panel of APL autoantibodies following pandemic influenza A/H1N1 non-adjuvant vaccine in PAPS patients and healthy controls. Lupus specific antibodies were also investigated in these patients. Methods: Forty-five PAPS patients (Sapporo criteria) and 33 healthy controls were vaccinated with monovalent, inactivated H1N1 vaccine (Butantan Institute/Sanofi Pasteur, São Paulo, Brazil). They were prospec-tively assessed at pre-vaccination, 3 weeks and 6 months after vaccination. APL autoantibodies were determined by an enzyme-linked immunosor-bent assay (ELISA) and included: anti-cardiolipin (aCL) IgG/IgM and anti-β2GPI IgG/IgM antibodies (Inova Diagnostics, USA); anti-annexin V IgG/IgM, anti-phosphatidyl serine IgG/IgM and anti-prothrombin IgG/IgM (Orgentec Diagnostica, Germany). Anti-Sm was determined by ELISA (Inova Diagnostics, USA) and anti-dsDNA by indirect immun-fluorescence. Arterial and venous thromboses were also clinically assessed. The statistical analyses were carried out with qui square test, McNemar s test and one-way repeated measures analysis of variance (ANOVA). Results: Pre-vaccination frequency of at least one APL antibody was significantly higher in PAPS patients compared to controls (58% vs. 21%, p=0.003). The overall frequencies of APL antibody at pre-vaccination, 3 weeks and 6 months after immunization remained unchanged in patients (p=0.89) and controls (p=0.83). Further analysis of each evaluated antibody in PAPS revealed that their percentages at pre-vaccination and after 3 weeks and 6 months were also comparable (p>0.05): aCL IgG (42%, 38% and 42%), aCL IgM (22%, 20% and 24%), anti-β2GPI IgG (22%, 22% and 20%), anti-β2GPI IgM (15%, 15% and 18%), anti- annexin V IgG (4.5%, 4.5% and 2.5%), anti-annexin V IgM (uniformly negative), anti-phosphatidyl serine IgG (38%, 35% and 38%), anti- phosphatidyl serine IgM (15%, 13% and 13%), anti-prothrombin IgG (20%, 15% and 18%) and anti-prothrombin IgM (2.5%, 2.5% and 2.5%). The same pattern was observed for the control group (p>0.05). At 3 weeks, 2 PAPS patients developed a new but transient APL anti-body (moderate titer aCL IgG and IgM) whereas at 6 months, new APL antibodies were observed in 6 PAPS patients: 3 moderate titer aCL IgM, 1 moderate anti-β2GPI IgM, 1 low anti-phosphatidyl serine IgG and 1 low anti-prothrombin IgG. Fluctuations of antibody levels were not detected for any evaluated antibody (p>0.05). Of note, anti-Sm and anti-dsDNA autoantibodies were consistently negative during all evaluations. No new arterial or venous thrombosis events occurred during the study period. Conclusion: This was the first study to demonstrate that pandemic non-adjuvant influenza A/H1N1 in PAPS patients does not trigger a change in APL antibody profile or induce lupus specific autoantibodies.conferenceObject Long-Term Changes in Autoantibody Profile After Pandemic Unadjuvanted Influenza A/H1N1 Vaccine in Sjogren's Syndrome(2012) PASOTO, Sandra G.; RIBEIRO, Ana C.; VIANA, Vilma S. T.; LEON, Elaine P.; BUENO, Cleonice; NETO, Mauricio Levy; PRECIOSO, Alexander R.; TIMENETSKY, Maria do Carmo S.; BONFA, EloisaBackground/Purpose: Despite WHO recommendations about the A/California/7/2009/H1N1-like virus vaccination, there are no studies evalu- ating its possible influence on clinical manifestations and autoantibody profile in (primary) Sjögren’s syndrome (SS). Objectives: To evaluate short/long-term effect of influenza A/California/7/2009/H1N1-like virus vaccination on clinical manifestations and autoantibody profile in SS. Methods: Thirty-six SS patients (The American-European Consensus Group Criteria, 2002) and 36 gender-, age-, matched-healthy controls were evaluated before and 21-days after vaccination with unadjuvanted influenza A/H1N1-like virus regarding seroprotection/seroconversion, factor increase in geometric mean titre (FI-GMT) and side effects. New onset of parotiditis, arthritis, vasculitis, pneumonitis or neurological disorders and autoantibody profile [antinuclear antibodies (ANA), rheumatoid factor (RF), anti-dsDNA, anti-Ro(SS-A)/La(SS-B), anti-alpha-fodrin, anti-RNP, anti-Sm and anticar-diolipin] were assessed before, 21-days and 1-year after vaccination. Results: Patients and controls had similar rates of seroconversion (78 vs. 69%, p=0.42), seroprotection (83 vs. 72%, p=0.26) and FI-GMT (p=0.85). Pre-vaccination evaluation revealed that disease duration, glucocorticoid (mean dose 10.15.1 mg/day), methotrexate (up to 17.5 mg/week) or azathioprine (up to 100 mg/day) did not affect seroconversion (p> 0.05). Regarding short-term analysis, no change in the frequency or levels of autoantibodies was observed (p>0.05) and only mild side effects were observed in comparable rates to controls (p> 0.05). At 1-year follow-up, the rate of new disease flares was similar to the previous year (11 vs. 19%, p 0.51) and four seroconverted patients developed positivity to one of the following specificities: anti-Ro/SS-A, anti-La/SS-B, anti-alpha-fodrin, or IgM anticardiolipin. None developed other specific lupus autoantibodies. Of note, a significant increase in the mean levels of anti-Ro/SS-A (p< 0.0001) and anti-La/SS-B (p< 0.002) was detected after 1-year with no change in the other autoantibodies. Conclusion: This is the first study to indicate that influenza A/H1N1 vaccine induces long-term changes in autoantibody profile restricted to SS spectrum without a deleterious effect in disease course.conferenceObject Anti-Ribosomal P Antibodies in a Large Cohort of Autoimmune Hepatitis with No Evidence of Lupus: A Common Underlying Mechanism Targeting Liver?(2012) CALICH, Ana Luisa; VIANA, Vilma S. T.; CANCADO, Eduardo L.; TERRABUIO, Debora R.; TUSTUMI, Francisco; LEON, Elaine P.; SILVA, Clovis Artur; BORBA NETO, Eduardo F.; BONFA, EloisaconferenceObject Podocyte Injury in Membranous and Proliferative Lupus Nephritis: Distinct Underlying Mechanisms?(2012) REZENDE, Gabriela M.; VIANA, Vilma S. T.; MALHEIROS, Denise M.; LEON, Elaine P.; BORBA, Eduardo F.; SILVA, Neila A. S.; NORONHA, Irene L.; SILVA, Cleonice; BONFA, EloisaBackground/Purpose: Lupus nephritis (LN) is a major cause of morbidity and mortality in patients with systemic lupus erythematosus (SLE) with proteinuria being the predominant common manifestation and may therefore reflect podocyte injury. Podocytes are highly specialized cells that have a relevant role in the glomerular filtration barrier and alteration in the expression of their biomarkers has been shown to be associated with podocyte dysfunction in some glomerulopathies. A systematic analysis of podocyte-associated molecules encom-passing different subcellular compartments was performed in a large series of LN biopsies. Expression of Wilms tumor protein (WT1), Synaptopodin (Synpo) and glomerular epithelial protein 1 (GLEPP1) with nuclear, cytoplasmic and membrane distribution respectively, were evaluated attempting to identify if podocyte phenotype is distinct in proliferative and membranous nephritis. Possible association of molecular expression alterations with long term proteinuria severity and outcome in lupus was also investigated. Methods: Immunohistochemistry analysis was performed using monoclonal antibodies to WT1, Synpo and GLEPP1 proteins in 52 biopsies from patients with lupus nephritis fulfilling the revised ACR criteria for SLE. Demographic, clinical and laboratorial data at the time of biopsy were analyzed. Results: Thirty-nine (75%) biopsies were classified as proliferative LN and thirteen (25%) as pure membranous class V. Immunohistochemistry analysis in normal kidney revealed preserved staining of WT1, Synpo and GLEPP1 podocyte biomarkers along the capillary walls. Preserved and concomitant WT1 and Synpo staining was observed in a significant higher frequency in pure class V biopsies than in proliferative LN (69.23 vs. 2.56%, p 0.0001). Likewise, preserved GLEPP1 expression was also more frequent in pure class V LN (53.85 vs. 2.86%, p 0.0002). Proteinuria and serum albumin levels at the time of biopsy did not statistically differ in the two groups (p 0.87 and p 0.41) whereas in the mean long-term follow-up of four years a tendency of lower proteinuria (p 0.050) was observed in those patients with biopsies expressing preserved WT1/Synpo staining. Conclusion: This is the first study comparing proliferative and membranous lupus nephritis which evaluated simultaneously the expression of proteins in different subcellular podocyte compartments and provided novel evidence of preserved podocyte structural architecture predominantly in membranous lesions which may account for a better long term outcome of patients with this LN histological class. These findings suggest possible different underlying mechanisms for proteinuria in both conditions.conferenceObject Ovarian Dysfunction In Adult Childhood-Onset Systemic Lupus Erythematosus Patients: A Possible Role Of Methotrexate?(2013) ARAUJO, Daniel B.; YAMAKAMI, Lucas; BONFA, Eloisa; VIANA, Vilma S. T.; PASOTO, Sandra G.; PEREIRA, Rosa M.; SERAFIN, Paulo C.; BORBA, Eduardo F.; SILVA, Clovis A.