DAGOBERTO CALLEGARO
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/45 - Laboratório de Fisiopatologia Neurocirúrgica, Hospital das Clínicas, Faculdade de Medicina
LIM/62 - Laboratório de Fisiopatologia Cirúrgica, Hospital das Clínicas, Faculdade de Medicina
LIM/45 - Laboratório de Fisiopatologia Neurocirúrgica, Hospital das Clínicas, Faculdade de Medicina
LIM/62 - Laboratório de Fisiopatologia Cirúrgica, Hospital das Clínicas, Faculdade de Medicina
13 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 13
- Normative values of the Brief Repeatable Battery of Neuropsychological Tests in a Brazilian population sample: discrete and regression-based norms(2018) DAMASCENO, Alfredo; AMARAL, Juliana Machado Santiago dos Santos; BARREIRA, Amilton Antunes; BECKER, Jefferson; CALLEGARO, Dagoberto; CAMPANHOLO, Kenia Repiso; DAMASCENO, Luciana Azevedo; DINIZ, Denise Sisterolli; FRAGOSO, Yara Dadalti; FRANCO, Paula S.; FINKELSZTEJN, Alessandro; JORGE, Frederico M. H.; LANA-PEIXOTO, Marco Aurelio; MATTA, Andre Palma da Cunha; MENDONCA, Andreia Costa Rabelo; NOAL, Janaina; PAES, Renata Alves; PAPAIS-ALVARENGA, Regina Maria; PEREIRA, Adriana Gutterres; SPEDO, Carina Tellaroli; DAMASCENO, Benito PereiraObjective: Cognitive dysfunction is common in multiple sclerosis. The Brief Repeatable Battery of Neuropsychological Tests (BRB-N) was developed to assess cognitive functions most-frequently impaired in multiple sclerosis. However, normative values are lacking in Brazil. Therefore, we aimed to provide continuous and discrete normative values for the BRB-N in a Brazilian population sample. Methods: We recruited 285 healthy individuals from the community at 10 Brazilian sites and applied the BRB-N version A in 237 participants and version B in 48 participants. Continuous norms were calculated with multiple-regression analysis. Results: Mean raw scores and the 5th percentile for each neuropsychological measure are provided, stratified by age and educational level. Healthy participants' raw scores were converted to scaled scores, which were regressed on age, sex and education, yielding equations that can be used to calculate predicted scores. Conclusion: Our normative data allow a more widespread use of the BRB-N in clinical practice and research.
- MOG-IgG-Associated Optic Neuritis, Encephalitis, and Myelitis: Lessons Learned From Neuromyelitis Optica Spectrum Disorder(2018) PASSOS, Giordani Rodrigues dos; OLIVEIRA, Luana Michelli; COSTA, Bruna Klein da; APOSTOLOS-PEREIRA, Samira Luisa; CALLEGARO, Dagoberto; FUJIHARA, Kazuo; SATO, Douglas KazutoshiAntibodies against myelin oligodendrocyte glycoprotein (MOG-IgG) have been found in some cases diagnosed as seronegative neuromyelitis optica spectrum disorder (NMOSD). MOG-IgG allowed the identification of a subgroup with a clinical course distinct from that of NMOSD patients who are seropositive for aquaporin-4-IgG antibodies. MOG-IgG is associated with a wider clinical phenotype, not limited to NMOSD, with the majority of cases presenting with optic neuritis (ON), encephalitis with brain demyelinating lesions, and/or myelitis. Therefore, we propose the term MOG-IgG-associated Optic Neuritis, Encephalitis, and Myelitis (MONEM). Depending on the clinical characteristics, these patients may currently be diagnosed with NMOSD, acute disseminated encephalomyelitis, pediatric multiple sclerosis, transverse myelitis, or ON. With specific cell-based assays, MOG-IgG is emerging as a potential biomarker of inflammatory disorders of the central nervous system. We review the growing body of evidence on MONEM, focusing on its clinical aspects.
conferenceObject Treatment of MOG-IgG-associated demyelination with Rituximab: a multinational study of 98 patients(2018) WHITTAM, Daniel; COBO-CALVO, Alvaro; LOPEZ-CHIRIBOGA, Alfonso Sebastian; PARDO, Santiago; DODD, James; BRANDT, Alexander; BEREK, Klaus; BERGER, Thomas; GOMBOLAY, Grace; OLIVEIRA, Luana Micheli; CALLEGARO, Dagoberto; KANEKO, Kimihiko; MISU, Tatsuro; BROCHET, Bruno; AUDOIN, Bertrand; MATHEY, Guillaume; LAPLAUD, David; THOUVENOT, Eric; COHEN, Mikael; TOURBAH, Ayman; MAILLART, Elisabeth; CIRON, Jonathan; DESCHAMPS, Romain; BIOTTI, Damien; MATIELLO, Marcelo; PALACE, Jacqueline; LIM, Ming; FUJIHARA, Kazuo; NAKASHIMA, Ichiro; BENNETT, Jeffrey; PANDIT, Lekha; CHITNIS, Tanuja; WEINSHENKER, Brian; WILDEMANN, Brigitte; SATO, Douglas Kazutoshi; KIM, Su-Hyun; KIM, Ho Jin; REINDL, Markus; LEVY, Michael; JARIUS, Sven; TENEMBAUM, Silvia; PAUL, Friedemann; PITTOCK, Sean; MARIGNIER, Romain; JACOB, AnuconferenceObject Pediatric acquired demyelination syndromes profile in a Brazilian center(2018) PAOLILO, R. B.; PAZ, J. A. da; APOSTOLOS-PEREIRA, S. L.; ARAUJO, A. L. C.; RIMKUS, C. M.; CALLEGARO, D.; SATO, D. K.- Longitudinal analysis of verbal episodic memory in patients with relapsing-remitting multiple sclerosis(2018) BOA, Izadora Nogueira Fonte; RIMKUS, Carolina de Medeiros; COMPANHOLO, Kenia Repiso; PEREIRA, Samira Luisa Apostolos; JUNQUEIRA, Thiago de Faria; MACHADO, Melissa de Almeida Rodrigues; CALLEGARO, Dagoberto; OTACLUY, Maria Concepcion Garcia; LEITE, Claudia da Costa; MIOTTO, Eliane CorreaObjective: A 4.5-year follow-up study was conducted to characterize baseline verbal episodic memory (VEM) and its behavior and to assess the effects of relapsing-remitting multiple sclerosis (RRMS) on this domain. Methods: Twenty-nine patients with RRMS underwent two neuropsychological assessments performed an average of 4.5 years apart. Twenty-six control participants underwent a single neuropsychological assessment. A significance level of p < 0.005 was adopted to denote a significant difference between the groups on the Mann Whitney and Wilcoxon paired statistical analyses. Results: No statistical difference was found in the results of the VEM tests between the first and second neuropsychological assessments of the patients. However, a statistical difference was evident between the patient and control groups in the results of the VEM tests. Conclusion: The patient group showed changes in the VEM relative to the control group.After approximately 4.5 years of disease, the patient performance on the VEM stabilized or improved.
- The protective effects of high-education levels on cognition in different stages of multiple sclerosis(2018) RIMKUS, Carolina de Medeiros; AVOLIO, Isabella Maria Bello; MIOTTO, Eliane Correa; PEREIRA, Samira Apostolos; MENDES, Maria Fernanda; CALLEGARO, Dagoberto; LEITE, Claudia da CostaBackground: Low-education attainment is associated with worse cognitive performance in multiple sclerosis (MS) patients, and possibly with a lower cognitive reserve and/or increased inflammatory activity. Cognitive reserve refers to the capability of a source of intellectual enrichment in attenuating a negative effect of a diseaserelated factor; while the inflammatory activity is often related to T2-lesion load (T2-LL) increase. Objective: To disentangle the effects of cognitive reserve and an increased T2-LL in MS-patients with low-education levels. Methods: The study included 136 MS patients and 65 healthy-controls, divided in low-education (12 years or less of school education without obtaining any technical superior degree) and high-education (more than 12 years of school education with technical or superior degree) groups. An extensive battery of neuropsychological tests was applied examining intelligence quotient and six cognitive domains. Test results were z-scored and subjects with z-scores <= -1.5 in two or more domains were considered cognitively impaired. To test the factors associated with worse cognitive performance, regression models were applied using average cognition as target; education level, Expanded Disability Status Scale (EDSS), T2-LL, disease duration, age of disease onset, age and gender as predictors. We also tested the correlation between T2-LL and cognition in the groups. To investigate the role of education level as a source of intellectual enrichment/cognitive reserve in different stages of MS, we sub-divided the MS patients in three groups according to the disease duration (less than 5 years, between 5 and 10 years and more than 10 years). Results: Worse average cognition was associated with low-education level, higher T2-LL and male gender. A higher frequency of cognitively impaired patients was observed in MS patients with low-education level, in all stages of the disease. In patients with a disease duration shorter than five years, there was a lower correlation between worse average cognition and T2-LL in the high-education level group, compared to the patients with low-education level; in MS patients with longer disease duration, we observed a stronger correlation between lesion burden and cognitive impairment in both groups. Conclusion: Education attainment is a source of intellectual enrichment and can enhance the cognitive reserve in MS patients. The protective effect of a high-education level was stronger in patients with less than five years of disease, suggesting a stronger role of cognitive reserve in short-term disease. In long-term disease we observed a greater impact of increased inflammatory activity on cognition.
conferenceObject Fatigue in Multiple Sclerosis: evaluation of Brazilian Portuguese version of Fatigue Severity Scale and Modified Fatigue Impact Scale(2018) DANTAS, Fernanda; MENDES, Maria Fernanda; APOSTOLOS-PEREIRA, Samira; CALLEGARO, Dagoberto- Pearls & Oy-sters: A curable myopathy manifesting as exercise intolerance and respiratory failure(2018) SILVA, Andre M. S.; MENDONCA, Rodrigo H.; SOARES, Diogo C.; CALLEGARO, Dagoberto; CALDAS, Vitor M.; PERISSINOTTI, Iago N.; CARVALHO, Mary S.; ZANOTELI, Edmar
- A SEVERE PHENOTYPE OF KENNEDY DISEASE ASSOCIATED WITH A VERY LARGE CAG REPEAT EXPANSION(2018) MADEIRA, Joao L. O.; SOUZA, Alexandre B. C.; CUNHA, Flavia S.; BATISTA, Rafael L.; GOMES, Nathalia L.; RODRIGUES, Andresa S.; JORGE, Frederico Mennucci de Haidar; CHADI, Gerson; CALLEGARO, Dagoberto; MENDONCA, Berenice B.; COSTA, Elaine M. F.; DOMENICE, Sorahia
- A curable myopathy manifesting as exercise intolerance and respiratory failure(2018) SILVA, A.; MENDONCA, R.; SOARES, D.; CALLEGARO, D.; CALDAS, V.; CARVALHO, M.; ZANOTELI, E.