Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 5 de 5
Filter
1.
Rev. bras. reumatol ; 56(3): 240-251, tab, graf
Article in English | LILACS | ID: lil-785757

ABSTRACT

Abstract Objective To describe clinical, laboratory, radiological and progression characteristics of myelopathy in systemic lupus erythematosus (SLE). Patients and methods A retrospective analysis was performed on a cohort of 1193 patients with SLE (ACR criteria) in order to identify patients with myelopathy (neuropsychiatric ACR). Disease activity was assessed by the SLE activity index (SLEDAI) on the date of the event and functional capacity was assessed by the Expanded Disability Status Scale (EDSS) at the last visit. Results We identified 14 (1.2%) patients with myelopathy. All were women with a mean age of 30 ± 11.5 years. Myelopathy occurred at the diagnosis of SLE in four (28%) patients; and nine (64%) patients had another type of neuropsychiatric manifestation associated. Neurological recurrence was observed in one (7%) patient. Disease activity was observed in 2 (14%) patients. Cerebrospinal fluid presented pleocytosis on 7 (53%) patients; antiphospholipid antibodies were positive in 5 (45%). Magnetic resonance imaging (MRI) showed T2 hyperintensity with a predominance of longitudinal involvement in 6 (86%) patients. Most were treated with intravenous corticosteroids and cyclophosphamide. No patient had full recovery and four (36%) had high EDSS scores. Three (21%) patients died from sepsis early in the course of their myelopathy, during or after immunosuppressive therapy. Conclusions Myelopathy occurred in 14 (1.2%) of the patients in our cohort and this may be the first manifestation of the disease occurring independently of systemic disease activity. Although rare, myelopathy shows great morbidity and mortality, can be recurrent and MRI is critical for diagnosis.


Resumo Objetivo Descrever características clínicas, laboratoriais, radiológicas e evolutivas de mielopatia no lúpus eritematoso sistêmico (LES). Pacientes e métodos Foi feita análise retrospectiva de uma coorte de 1.193 pacientes com LES (critérios ACR) para identificar os pacientes com mielopatia (ACR neuropsiquiátrico). A atividade de doença foi analisada pelo Índice de Atividade do LES (Sledai) na data do evento e a capacidade funcional pela Escala Expandida do Estado de Incapacidade (EDSS) na última consulta. Resultados Foram identificados 14 (1,2%) pacientes com mielopatia. Todas eram mulheres com média de 30 anos (DP ± 11,5 anos). A mielopatia ocorreu no diagnóstico do LES em quatro (28%) e em nove (64%) havia outro tipo de manifestação neuropsiquiátrica associada. Recorrência do quadro neurológico foi observado em uma (7%) paciente. Atividade de doença foi observada em dois (14%) pacientes. O líquido cefalorraquidiano apresentava pleocitose em sete (53%) pacientes anticorpos antifosfolípides eram positivos em cinco (45%). A ressonância magnética (RM) demonstrou hipersinal em T2 com predomínio do comprometimento longitudinal em seis (86%) pacientes. A maioria foi tratada com corticosteroides e ciclofosfamida endovenosos. Nenhuma paciente teve completa recuperação e quatro (36%) tinham escores altos da EDSS. Óbito foi observado em três (21%) durante episódio de mielopatia, por septicemia durante ou após terapia imunossupressora. Conclusões A mielopatia ocorreu em 14 (1,2%) dos pacientes da nossa coorte e pode ser a primeira manifestação da doença e ocorrer independentemente de atividade sistêmica da doença. Embora rara, é de grande morbimortalidade, pode ser recorrente e a RM é fundamental para o diagnóstico.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Spinal Cord Diseases/complications , Spinal Cord Diseases/diagnosis , Magnetic Resonance Imaging/methods , Lupus Erythematosus, Systemic/complications , Lupus Erythematosus, Systemic/diagnosis , Spinal Cord Diseases/immunology , Spinal Cord Diseases/diagnostic imaging , Retrospective Studies , Disease Progression , Lupus Erythematosus, Systemic/immunology , Lupus Erythematosus, Systemic/diagnostic imaging
2.
Salvador; s.n; 2014. 118 p. ilus, tab.
Thesis in Portuguese | LILACS | ID: biblio-1000904

ABSTRACT

O Brasil representa uma das áreas endêmicas para o vírus linfotrópico de células T humanas do tipo 1 (HTLV-1) e a cidade de Salvador, Bahia, possui a maior prevalência nacional da infecção por este retrovírus (1,8%), com cerca de 50.000 pessoas infectadas. O HTLV-1 foi o primeiro retrovírus humano descrito e está classicamente associado à leucemia/linfoma de células T do adulto (ATLL) e à mielopatia associada ao HTLV-1/paraparesia espástica tropical (HAM/TSP). A HAM/TSP é uma doença inflamatória do sistema nervoso central, cujos mecanismos imunopatogênicos não estão completamente elucidados. O papel dos linfócitos T citotóxicos na patogênese desta doença ainda não está bem definido. Neste estudo, foram avaliados o fenótipo e a função de linfócitos T citotóxicos de pacientes infectados pelo HTLV-1 com HAM/TSP...


Brazil represents one of the largest endemic areas for human T-lymphotropic virus cells type 1 (HTLV-1) infection and associated diseases. Salvador, Bahia, is considered as the Brazilian city with the highest national HTLV-1prevalence (around 1.8% in the general population). HTLV -1 was the first human retrovirus described and is classically associated with adult Tcell leukemia/lymphoma (ATLL) and HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP). HAM/TSP is a chronic and progressive inflammatory disease of the central nervous system and your immunopathogenic mechanisms are not completely understood. The role of cytotoxic T-lymphocytes (CTLs) in the pathogenesis of this disease is still undefined. In this study we evaluated the phenotype and function of cytotoxic Tlymphocytes from HTLV-1-infected patients with HAM/TSP...


Subject(s)
Humans , Spinal Cord Diseases/immunology , Spinal Cord Diseases/pathology , Spinal Cord Diseases/prevention & control , Spinal Cord Diseases/blood , T-Lymphocytes, Cytotoxic/cytology , T-Lymphocytes, Cytotoxic/immunology , T-Lymphocytes, Cytotoxic/pathology , Human T-lymphotropic virus 1/immunology
3.
Salvador; s.n; 2014. 58 p. ilus, tab.
Thesis in Portuguese | LILACS | ID: biblio-1000969

ABSTRACT

O controle da carga proviral do HTLV-1 depende em parte da lise de células infectadas por células citotóxicas mediada pelos linfócitos T CD8⁺ e pelas células NK (Natural killer). A família de receptores KIR (killer-cell immunoglobulin-like receptor) interage com as moléculas de HLA de classe I, principalmente os alelos do HLA C do grupo 1 (C*01, C*03, C*07, C*08, C*12, C*13, C*14 e C*16), ativando ou inibindo a função destas células.O objetivo do presente estudo foi avaliar se os genes KIR2DL2/KIR2DL3 e os alelos de HLA-C do grupo 1 estão associados ao controle da carga proviral do HTLV-1 e ao diagnóstico de HAM/TSP. O estudo foi realizado no Centro de HTLV da Escola Bahiana de Medicina e Saúde Púbica, em Salvador-Bahia. A presença dos genes KIR2DL2 e KIR2DL3 foi determinada por PCR em tempo real (Syber Green). Foram incluídos 248 indivíduos infectados pelo HTLV-1 (161 assintomáticos e 87 com HAM/TSP) cujos alelos de HLA de classe I haviam sido previamente determinados. A carga proviral (quantificada por PCR em tempo real) e as frequências de indivíduos assintomáticos e com diagnóstico de HAM/TSP (Possível, Provável e Definido) foram comparadas de acordo com a presença ou ausência dos genes KIR avaliados. As frequências dos genes KIR2DL2 e KIR2DL3 foi 84,3% e 96,8%...


The control of proviral load of HTLV-1 depends in part of the lysis of infected cells mediated by cytotoxic CD8⁺T lymphocytes and NK (Natural killer) cells. The family of KIR (killer-cell immunoglobulin-like receptor) interacts with HLA class I molecules, especially those HLA-C alleles in-group 1 (C*01, C*03, C*07, C*08, C*12, C*13, C*14 and C*16) by activating or inhibiting the function of these cells. The aim of this study was to evaluate if the KIR2DL2, KIR2DL3 genes and group 1 HLA-C alleles are associated with the control of proviral load of HTLV-1 and the diagnosis of HAM/TSP. The study was performed at Bahiana School HTLV Center of Medicine and Health Public, in Salvador, Bahia. The presence of KIR2DL2 and KIR2DL3 genes was determined by real-time PCR (Syber Green). The study included 248 subjects infected with HTLV-1(161 and 87 asymptomatic with HAM/TSP) whose HLA class I alleles were previously determined. The proviral load (quantified by real-time PCR) and the frequency asymptomatic individuals diagnosed with HAM/TSP (possibly, probably and definitive) were compared according to the presence or absence of KIR genes evaluated. The frequencies of KIR2DL2 and KIR2DL3 genes were 84.3% and 96.8%...


Subject(s)
Humans , Spinal Cord Diseases/complications , Spinal Cord Diseases/genetics , Spinal Cord Diseases/immunology , Spinal Cord Diseases/pathology , Human T-lymphotropic virus 1/immunology , Human T-lymphotropic virus 1/pathogenicity
4.
Actual. SIDA. infectol ; 21(81): 84-94, sep.2013. tab
Article in Spanish | LILACS | ID: lil-777930

ABSTRACT

El virus linfotrópicos-T humanos tipo 1 (HTLV-1) es el agente etiológico de una enfermedad hematológica de mal pronóstico, la leucemia de células T del adulto (ATL) y de una enfermedad neurológica invalidante, la mielopatía asociada al HTLV-1/paraparesia espástica tropical (HAM/TSP) para las cuales no existe un tratamiento eficaz. El virus linfotrópico-T humano tipo 2 (HTLV-2) ha sido relacionado a síndromes neurológicos, aumento de infecciones y mortalidad. En Argentina, existe una restricción étnica/geográfica con una región endémica para el HTLV-1 en el Noroeste (Aymarás) y otra para el HTLV-2 en la Región Chaqueña (Tobas y Wichis). El aumento de corrientes migratorias a partir de áreas endémicas ha contribuido a la mayor circulación de estos virus en el país, hecho que plantea el desafío de poder brindar un diagnóstico final y una atención integral a los individuos. Este manuscrito comprende una revisión actualizada y la experiencia de nuestro grupo sobre estas infecciones...


HTLV-1 is the ethiologic agent of an hematologic disease with bad prognosis, Adult T-cell Leukemia (ATL) lethal in short time and a chronic and progressively invalidant neurological disease, HTLV-1 Associated Mielopathy/Tropical Spastic Paraparesis (HAM/TSP), for which no effective treatment is available. HTLV-2 has been related to neurologic syndromes, an increase in infections and mortality. In Argentina, the infection shows an ethnic/geographic restriction with an endemic regions for HTLV-1 in the Northeast (Aymaras) and for HTLV-2 in the Chaqueña Region (Tobas y Wichis). The increasing migrations from endemic areas have contributed to a major circulatin of these viruses and detection of HAM/TSP and ATL cases countrywide. This situation poses the challenge of giving a complete and final diagnosis and an integral care to infected individuals. This manuscript describes general aspects of HTLV-1/2 and the situation and experience of our group on these infections in the country...


Subject(s)
Humans , Blotting, Western , Enzyme-Linked Immunosorbent Assay , Endemic Diseases/prevention & control , Hematologic Diseases/etiology , Spinal Cord Diseases/immunology , Opportunistic Infections/epidemiology , Paraparesis, Tropical Spastic/pathology , Serologic Tests , Human T-lymphotropic virus 1/immunology , /immunology
5.
Salvador; s.n; 2013. 104 p. ilus, tab.
Thesis in Portuguese | LILACS | ID: biblio-1000895

ABSTRACT

O vírus linfotrópico das células T humanas do tipo 1 (HTLV-1) é o agente etiológico da mielopatia associada ao HTLV / paraparesia espástica tropical (HAM / TSP ), que ocorre em menos de 5 % dos indivíduos infectados. A resposta imune controla parcialmente a infecção, porém pode estar ligada a patogênese da doença. O objetivo deste estudo foi caracterizar fenotipicamente as subpopulações de linfócitos T, em pacientes assintomáticos e com diagnóstico de HAM/TSP. Foram avaliados 103 pacientes acompanhados no Centro de HTLV da Escola Bahiana de Medicina e Saúde Pública (EBMSP) e 19 controles não infectados. Os pacientes foram categorizados de acordo com o grau de certeza do diagnóstico de HAM/TSP: possível (Ps), provável (Pb) e definido (D), além de pacientes assintomáticos (ASS). O perfil fenotípico (CD25, CD45RA, CD45RO, HLA-DR, CD25, CCR-7, CD62L)...


The human T-cell lymphotropic vírus type 1(HTLV-1) is the etiological agent of HTLV- associated myelopathy/ Tropical spastic paraparesis(HAM/TSP), wich occurs in less then 5% of the infected individuals. The immune response partially controls the infection, but may be linked to the pathogenesis of disease. The aim of this study was to characterize phenotipically T lymphocyte subpopulations in asymptomatic and in patients diagnosed with HAM/TSP. We evaluated 103 patients treated at the center for HTLV of Bahia School of Medicine and Public Health (EBMSP) and 19 uninfected controls. Patients were categorized as asymptomatic and according to the degree of certainty of the diagnosis of HAM/TSP: Possible(Ps), Probable(Pb) and Definite(D). The phenotypic profile (CD25, CD45RA, CD45RO, HLA-DR, CCR-7, CD62L)...


Subject(s)
Humans , Spinal Cord Diseases/diagnosis , Spinal Cord Diseases/immunology , Spinal Cord Diseases/pathology , Spinal Cord Diseases/prevention & control , Spinal Cord Diseases/virology , Receptors, Antigen, T-Cell , Receptors, Antigen, T-Cell/administration & dosage , Receptors, Antigen, T-Cell/analysis , Receptors, Antigen, T-Cell/immunology , Human T-lymphotropic virus 1/pathogenicity
SELECTION OF CITATIONS
SEARCH DETAIL