SAMUEL KATSUYUKI SHINJO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Clínica Médica, Faculdade de Medicina - Docente
LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina
LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina
19 resultados
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- Camptocormia secondary to polymyositis(2013) MATTAR, Melina Andrade; GORDO, Joara Martins da Silva; HALPERN, Ari Stiel Radu; SHINJO, Samuel KatsuyukiCamptocormia is a postural affliction characterised by abnormal flexion of the thoracolumbar spine, which appears upon standing, increases with walking, and disappears in the supine position. Only five cases of camptocormia secondary to idiopathic inflammatory myopathies have been described in the literature. In this case report, we describe the case of a male patient 67 years of age who suffered from polymyositis for 18 years, which was associated with manifestations compatible with camptocormia. The clinical manifestations were stable and did not progress. Polymyositis is an idiopathic inflammatory myopathy clinically characterised by symmetric weakness that predominantly affects the proximal muscles. Nevertheless, polymyositis is a systemic autoimmune disease; therefore, the skeletal muscles may be diffusely affected, including the paravertebral muscles, which may manifest as camptocormia.
- Myositis-specific and myositis-associated autoantibody profiles and their clinical associations in a large series of patients with polymyositis and dermatomyositis(2013) CRUELLAS, Marcela Gran Pina; VIANA, Vilma dos Santos Trindade; LEVY-NETO, Mauricio; SOUZA, Fernando Henrique Carlos de; SHINJO, Samuel KatsuyukiOBJECTIVE: To analyze the prevalence of myositis-specific and myositis-associated autoantibodies and their clinical correlations in a large series of patients with dermatomyositis/polymyositis. METHOD: This cross-sectional study enrolled 127 dermatomyositis cases and 95 polymyositis cases. The disease-related autoantibody profiles were determined using a commercially available blood testing kit. RESULTS: The prevalence of myositis-specific autoantibodies in all 222 patients was 34.4%, whereas myositis-associated autoantibodies were found in 41.4% of the patients. The most frequently found autoantibody was anti-Ro-52 (36.9%), followed by anti-Jo-1 (18.9%), anti-Mi-2 (8.1%), anti-Ku (4.1%), anti-SRP (3.2%), anti-PL-7 (3.2%), anti-PL-12 (2.7%), anti-PM/Scl75 (2.7%), and anti-PM/Scl100 (2.7%). The distributions of these autoantibodies were comparable between polymyositis and dermatomyositis, except for a higher prevalence of anti-Jo-1 in polymyositis. Anti-Mi-2 was more prevalent in dermatomyositis. Notably, in the multivariate analysis, anti-Mi-2 and anti-Ro-52 were associated with photosensitivity and pulmonary disorders, respectively, in dermatomyositis. Anti-Jo-1 was significantly correlated with pulmonary disorders in polymyositis. Moreover, anti-Ro-52 was associated with anti-Jo-1 in both diseases. No significant correlation was observed between the remaining autoantibodies and the clinical and/or laboratory findings. CONCLUSIONS: Our data are consistent with those from other published studies involving other populations, although certain findings warrant consideration. Anti-Ro-52 and anti-Jo-1 were strongly associated with one another. Anti-Ro-52 was correlated with pulmonary disorders in dermatomyositis, whereas anti-Jo-1 was correlated with pulmonary alterations in polymyositis.
- Anti-synthetase syndrome: anti-PL-7, anti-PL-12 and anti-EJ(2013) SOUZA, Fernando Henrique Carlos de; CRUELLAS, Marcela Gran Pina; LEVY-NETO, Mauricio; SHINJO, Samuel KatsuyukiObjectives: Due to the scarcity of studies in the literature, we conducted an analysis of a series of patients with the anti-PL-7, PL-12 and EJ types of antisynthetase syndrome (ASS). Methods: We conducted a retrospective cohort study of 20 patients with ASS (8 with anti-PL-7, 6 with PL-12, 6 with EJ) monitored in our department between 1982 and 2012. Results: The mean patient age at disease onset was 38.5 +/- 12.9 years, and the disease duration was 4.5 +/- 6.4 years. Of all the patients, 70% were white and 85% were female. Constitutional symptoms occurred in 90% of cases. All patients presented objective muscle weakness in the limbs; in addition, 30% were bedridden and 65% demonstrated high dysphagia at diagnosis. Joint and pulmonary involvement and Raynaud's phenomenon occurred in 50%, 40% and 65% of cases, respectively, with more than half of the patients presenting incipient pneumopathy, ground-glass opacity and/or pulmonary fibrosis. There were no cases of neurological and/or cardiac involvement. All patients received prednisone or other immunosuppressants depending on tolerance, side effects and/or disease refractoriness. Importantly, patients with the anti-EJ type of ASS demonstrated higher rates of recurrence. Two patients died during follow-up, and 1 patient had breast cancer at the time of diagnosis. Conclusions: ASS (anti-PL-7, PL-12 and EJ) was found to predominantly affect white women. Although the autoantibodies described in the present study are more related to pulmonary than joint involvement, our patients showed a significant percentage of both types of involvement and a high percentage of myopathy. We also observed a low mortality rate.
- Giant cell arteritis: a multicenter observational study in Brazil(2013) SOUZA, Alexandre Wagner Silva de; OKAMOTO, Karine Yoshiye Kajiyama; ABRANTES, Fabiano; SCHAU, Bruno; BACCHIEGA, Ana Beatriz Santos; SHINJO, Samuel KatsuyukiOBJECTIVE: To describe demographic features, disease manifestations and therapy in patients with giant cell arteritis from referral centers in Brazil. METHODS: A retrospective cohort study was performed on 45 giant cell arteritis patients from three university hospitals in Brazil. Diagnoses were based on the American College of Rheumatology classification criteria for giant cell arteritis or temporal artery biopsy findings. RESULTS: Most patients were Caucasian, and females were slightly more predominant. The frequencies of disease manifestations were as follows: temporal headache in 82.2%, neuro-ophthalmologic manifestations in 68.9%, jaw claudication in 48.9%, systemic symptoms in 44.4%, polymyalgia rheumatica in 35.6% and extra-cranial vessel involvement in 17.8% of cases. Aortic aneurysms were observed in 6.6% of patients. A comparison between patients with biopsy-proven giant cell arteritis and those without temporal artery biopsies did not yield significant differences in disease manifestations. All patients were treated with oral prednisone, and intravenous methylprednisolone was administered to nearly half of the patients. Methotrexate was the most commonly used immunosuppressive agent, and low-dose aspirin was prescribed to the majority of patients. Relapses occurred in 28.9% of patients, and aspirin had a protective effect against relapses. Females had higher prevalences of polymyalgia rheumatica, systemic manifestations and jaw claudication, while permanent visual loss was more prevalent in men. CONCLUSIONS: Most of the clinical features of Brazilian giant cell arteritis patients were similar to those found in other studies, except for the high prevalence of neuro-ophthalmic manifestations and permanent blindness in the Brazilian patients. Aspirin had a protective effect on relapses.
conferenceObject Efficacy and Safety Of Low-Intensity Resistance Training Combined With Vascular Occlusion In Polymyositis and Dermatomyositis(2013) MATTAR, Melina; PERANDINI, Luiz A.; DASSOUKI, Thalita; SHINJO, Samuel K.; GUALANO, Bruno; ROSCHEL, Hamilton; LIMA, Fernanda R.; PINTO, Ana Lucia S.article 14 Citação(ões) na Scopus Clinical and vascular features of Takayasu arteritis at the time of ischemic stroke(2013) PAULA, Luiz Eduardo de; ALVERNE, Andrea Rocha Saboia de Mont; SHINJO, Samuel KatsuyukiObjectives: Takayasus arteritis (TA) is a systemic vasculitis whose clinical presentation varies from asymptomatic to serious neurovascular events, including stroke. However, few studies are currently available assessing stroke in TA. Thus, we described the clinical and laboratory characteristics and vascular imaging features in patients with TA at the time of stroke. Materials and Methods: This is a single center retrospective cohort study investigating the clinical and demographic data of 18 (15.0%) patients with a history of stroke confirmed by imaging methods, among 120 patients with TA, assessed in the 1985-2012 period. Results: The mean age of the 18 patients at the time of stroke was 29.4 +/- 10.9 years, with 94.4% female and 88.9% Caucasian. Of these patients, 14 (77.8%) had previous stroke at diagnosis of TA, while in four cases the stroke occurred after confirmed TA diagnosis. Regarding the clinical course, 12 (66.7%) had peripheral neurological sequelae and one patient died as a result of cerebral hyperperfusion syndrome after carotid re-vascularization. Conclusions: Our results showed a high prevalence of stroke in TA and revealed most of these events occurred concomitantly with diagnosed TA. Moreover, although four patients had strokes after diagnosis of TA, these occurred at a young age, demonstrating they were Most likely the result of vascular changes secondary to TA.- Dermatomyositis and polymyositis: from immunopathology to immunotherapy (immunobiologics)(2013) SHINJO, Samuel Katsuyuki; SOUZA, Fernando Henrique Carlos de; MORAES, Julio Cesar Bertacini deIdiopathic inflammatory myopathies (IIM), which include dermatomyositis (DM) and polymyositis (PM), are chronic systemic diseases associated with high morbidity and functional disability. Current treatment is based on the use of glucocorticoids and immunosuppressive drugs, but a considerable number of patients is refractory to traditional therapy. That has led to the attempted use of biologics based on the physiopathogenesis of IIM. From the immunopathological viewpoint, PM and DM differ: the former is more related to cellular immunity, while the latter, to humoral immunity. In both, however, elevated concentrations of proinflammatory interleukins (TNF, IL-1, IL-6) and increased expression of molecules related to costimulation of T lymphocytes have been described; thus, the use of biologics in those conditions seems reasonable. Considering the biologics available, open-label studies are scarce, comprising mainly case reports and series. TNF blockers have yielded conflicting results, with no evidence of good response to treatment. The anti-CD20 therapy has the most promising results. Data on T lymphocyte costimulation blockade and anti-IL-6 therapy are extremely scarce, preventing any consideration. Thus, the use of biologics in IIM still remains an unconquered frontier. Biologics may have an important role in the management of IIM refractory to conventional therapy, but further prospective studies based on objective parameters of response to treatment are needed. So far, anti-CD20 therapy seems to be the most promising treatment for refractory IIM.
- Adalimumab in anti-synthetase syndrome(2013) SILVA, Thiago Costa Pamplona da; PRETTI, Flavia Zon; SHINJO, Samuel Katsuyuki
- Características da Arterite de Takayasu no Início da Doença e de Acordo com o Gênero(2013) MONT'ALVERNE, Andrea Rocha de Saboia; PAULA, Luiz Eduardo de; SHINJO, Samuel KatsuyukiBackground: Although there are various published epidemiological studies regarding Takayasu's arteritis (TA), none have analyzed the influence of gender on the clinical and laboratory manifestations or vascular alterations at disease onset. Objectives: To analyze the influence of gender on clinical and laboratory manifestations and variations in vascular imaging at TA onset. Methods: A retrospective, unicentric cohort study that evaluated 55 consecutive TA patients between 1982 and 2012. All available clinical data and laboratory test results related to the onset of the disease were analyzed. We included only patients aged 12-35 years at diagnosis to exclude age-related factors. Results: We analyzed 17 men and 38 women, mostly Caucasian, with a comparable mean age between genders. There was no gender difference regarding the clinical or laboratory characteristics, comorbidities, or smoking habit, except for abdominal pain, which was more common in men. Regarding vascular lesions, the presence of ascending aortic aneurysms was significantly more frequent in males. Male gender represented an independent risk factor for the occurrence of abdominal pain and ascending aortic aneurysms in TA patients. Conclusion: Abdominal pain and ascending aortic aneurysms occurred more frequently in men with TA, suggesting a more severe disease profile in males.
article 12 Citação(ões) na Scopus Miosite de corpos de inclusão: série de 30 casos de um centro terciário brasileiro(2013) ALVERNE, Andrea Rocha de Saboia Mont'; MARIE, Suely Kazue Nagahashi; LEVY-NETO, Mauricio; SOUZA, Fernando Henrique Carlos de; CARVALHO, Mary Souza de; SHINJO, Samuel KatsuyukiObjectives: To describe a series of 30 consecutive patients with inclusion body myositis (IBM) from our tertiary center, from 1982 to 2012. Materials and Methods: All patients fulfilled the criteria of Griggs et al. (1995) for IBM. Results: The mean age of patients at disease onset was 60.8 +/- 11.9 years with disease duration of 8.0 +/- 5.2 years. 80% of patients were Caucasian, with similar distribution between genders. Weight loss in early disease was present in less than a quarter of cases. The main symptom was proximal weakness of the lower limbs followed by weakness of the upper (proximal and/or distal) limbs. One third of patients had dysphagia, whereas dysphonia was present in 16.7%, arthralgias in 6.7%, moderate dyspnea symptoms in 3.3% of cases. All patients received prednisone (lmg/kg/day). Several immunosuppressives were used as corticosteroid-sparing according to tolerance, side effects and/or refractoriness. Half of the patients still in follow-up remained stable according to clinical and laboratory data during the study There were four cases of cancer, four cases associated with viral infections (HIV and hepatitis C virus) and three deaths (two because of sepsis secondary to community bronchopneumonia, and one because of congestive heart failure). Conclusions: This is the first Brazilian series of cases involving large sample of IBM. The profile of the patients analyzed in this study was comparable to those profiles described in literature, except that of IBM cases of our population are equally distributed in both genders and the interval between symptoms onset and diagnosis of the disease was relatively short. It is relevant to note the high frequency of neoplastic diseases and chronic viral infections in our population, reinforcing the need for specific epidemiological studies to verify these associations, once it is poorly described in the literature.