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Autoimmune diseases in the TH17 era

MESQUITA JR., D.; CRUVINEL, W.M.; CÂMARA, N.O.S.; KÁLLAS, E.G.; ANDRADE, L.E.C.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.24%
A new subtype of CD4+ T lymphocytes characterized by the production of interleukin 17, i.e., TH17 cells, has been recently described. This novel T cell subset is distinct from type 1 and type 2 T helper cells. The major feature of this subpopulation is to generate significant amounts of pro-inflammatory cytokines, therefore appearing to be critically involved in protection against infection caused by extracellular microorganisms, and in the pathogenesis of autoimmune diseases and allergy. The dynamic balance among subsets of T cells is important for the modulation of several steps of the immune response. Disturbances in this balance may cause a shift from normal immunologic physiology to the development of immune-mediated disorders. In autoimmune diseases, the fine balance between the proportion and degree of activation of the various T lymphocyte subsets can contribute to persistent undesirable inflammatory responses and tissue replacement by fibrosis. This review highlights the importance of TH17 cells in this process by providing an update on the biology of these cells and focusing on their biology and differentiation processes in the context of immune-mediated chronic inflammatory diseases.; FAPESP

Primary immune deficiency disorders presenting as autoimmune diseases: IPEX and APECED

MORAES-VASCONCELOS, D.; COSTA-CARVALHO, B. T.; TORGERSON, T. R.; OCHS, H. D.
Fonte: SPRINGER/PLENUM PUBLISHERS Publicador: SPRINGER/PLENUM PUBLISHERS
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
56.16%
Background Several primary immune deficiency disorders are associated with autoimmunity and malignancy, suggesting a state of immune dysregulation. The concept of immune dysregulation as a direct cause of autoimmunity in primary immune deficiency disorders (PIDDs) has been strengthened by the recent discovery of distinct clinical entities linked to single-gene defects resulting in multiple autoimmune phenomena including immune dysregulation, polyendocrinopathy, enteropathy and X-linked (IPEX) syndrome, and autoimmune polyendocrinopathy, candidiasis and ectodermal dystrophy (APECED) syndrome. Conclusion Reviewing recent advances in our understanding of the small subgroup of PIDD patients with defined causes for autoimmunity may lead to the development of more effective treatment strategies for idiopathic human autoimmune diseases.

The use of stem cells for the treatment of autoimmune diseases

Rosa, Sílvia Barcellos; Voltarelli, Júlio Cesar; Chies, Jose Artur Bogo; Pranke, Patricia Helena Lucas
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
ENG
Relevância na Pesquisa
56.31%
Autoimmune diseases constitute a heterogeneous group of conditions commonly treated with anti-inflammatory, immunosuppressant and immunomodulating drugs, with satisfactory results in most cases. Nevertheless, some patients become resistant to conventional therapy. The use of high doses of drugs in such cases results in the need for bone marrow reconstitution, a situation which has stimulated research into the use of hematopoietic stem cells in autoimmune disease therapy. Stem cell transplantation in such diseases aims to destroy the self-reacting immune cells and produce a new functional immune system, as well as substitute cells for tissue damaged in the course of the disease. Significant results, such as the reestablishment of tolerance and a decrease in the recurrence of autoimmune disease, have been reported following stem cell transplantation in patients with autoimmune disease in Brazil and throughout the world. These results suggest that stem cell transplantation has the potential to become an important therapeutic approach to the treatment of various autoimmune diseases including rheumatoid arthritis, juvenile idiopathic arthritis, systemic lupus erythematosus, multiple sclerosis, systemic sclerosis, Crohn’s disease, autoimmune blood cytopenias...

Clinicopathological analysis of oral mucous autoimmune disease: A 27-year study

Loschiavo Arisawa, Emilia Angela; Almeida, Janete Dias; Carvalho, Yasmin Rodarte; Guimaraes Cabral, Luiz Antonio
Fonte: Medicina Oral S L Publicador: Medicina Oral S L
Tipo: Artigo de Revista Científica Formato: E94-E97
ENG
Relevância na Pesquisa
56.25%
Objectives: The aim of the present study was to analyze the main clinical and histopathological features of autoimmune diseases with oral manifestations such as oral lichen planus (OLP); mucous membrane pemphigoid (MMP); pemphigus vulgaris (PV) and erythema multiforme (EM). Study design: Retrospective review of 5770 files from the Oral Pathology Laboratory of Sao Jose dos Campos Dental School, São Paulo State University (UNESP) comprising a 27- year period from 1974 to 2000.Results: The cases accounted for 64 (1.10%) of 5770 anatomopathological examinations performed over the study period. Among the autoimmune diseases diagnosed, 49 (76.56%) were OLP, 6 (9.37%) were MMP, 5 (7.82%) were em and 4 (6.25%) were PV. Descriptive statistical analysis was used.Conclusion: The initial manifestations of most autoimmune diseases occur in the oral mucosa. An earlier diagnosis and proper therapeutic protocol will delay the dissemination of the lesions, thus greatly contributing to a better prognosis and quality of life of the patient.

Purine nucleoside phosphorylase: A potential target for the development of drugs to treat T-cell- and apicomplexan parasite-mediated diseases

Silva, R. G.; Nunes, J. E. S.; Canduri, F.; Borges, J. C.; Gava, L. M.; Moreno, F. B.; Basso, L. A.; Santos, D. S.
Fonte: Bentham Science Publ Ltd Publicador: Bentham Science Publ Ltd
Tipo: Revisão Formato: 413-422
ENG
Relevância na Pesquisa
56.11%
Purine nucleoside phosphorylase (PNP) catalyzes the reversible phosphorolysis of nucleosides and deoxynucleosides, generating ribose 1-phosphate and the purine base, which is an important step of purine catabolism pathway. The lack of such an activity in humans, owing to a genetic disorder, causes T-cell impairment, and thus drugs that inhibit human PNP activity have the potential of being utilized as modulators of the immunological system to treat leukemia, autoimmune diseases, and rejection in organ transplantation. Besides, the purine salvage pathway is the only possible way for apicomplexan parasites to obtain the building blocks for RNA and DNA synthesis, which makes PNP from these parasites an attractive target for drug development against diseases such as malaria. Hence, a number of research groups have made efforts to elucidate the mechanism of action of PNP based on structural and kinetic studies. It is conceivable that the mechanism may be different for PNPs from diverse sources, and influenced by the oligomeric state of the enzyme in solution. Furthermore, distinct transition state structures can make possible the rational design of specific inhibitors for human and apicomplexan enzymes. Here, we review the current status of these research efforts to elucidate the mechanism of PNP-catalyzed chemical reaction...

Monoclonal auto-antibodies and sera of autoimmune patients react with Plasmodium falciparum and inhibit its in vitro growth

Brahimi,Karima; Martins,Yuri Chaves; Zanini,Graziela Maria; Ferreira-da-Cruz,Maria de Fátima; Daniel-Ribeiro,Cláudio Tadeu
Fonte: Instituto Oswaldo Cruz, Ministério da Saúde Publicador: Instituto Oswaldo Cruz, Ministério da Saúde
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2011 EN
Relevância na Pesquisa
56.16%
The relationship between autoimmunity and malaria is not well understood. To determine whether autoimmune responses have a protective role during malaria, we studied the pattern of reactivity to plasmodial antigens of sera from 93 patients with 14 different autoimmune diseases (AID) who were not previously exposed to malaria. Sera from patients with 13 different AID reacted against Plasmodium falciparum by indirect fluorescent antibody test with frequencies varying from 33-100%. In addition, sera from 37 AID patients were tested for reactivity against Plasmodium yoelii 17XNL and the asexual blood stage forms of three different P. falciparum strains. In general, the frequency of reactive sera was higher against young trophozoites than schizonts (p < 0.05 for 2 strains), indicating that the antigenic determinants targeted by the tested AID sera might be more highly expressed by the former stage. The ability of monoclonal auto-antibodies (auto-Ab) to inhibit P. falciparum growth in vitro was also tested. Thirteen of the 18 monoclonal auto-Ab tested (72%), but none of the control monoclonal antibodies, inhibited parasite growth, in some cases by greater than 40%. We conclude that autoimmune responses mediated by auto-Ab may present anti-plasmodial activity.

Autoimmune diseases in the TH17 era

Mesquita Jr.,D.; Cruvinel,W.M.; Câmara,N.O.S.; Kállas,E.G.; Andrade,L.E.C.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2009 EN
Relevância na Pesquisa
66.24%
A new subtype of CD4+ T lymphocytes characterized by the production of interleukin 17, i.e., TH17 cells, has been recently described. This novel T cell subset is distinct from type 1 and type 2 T helper cells. The major feature of this subpopulation is to generate significant amounts of pro-inflammatory cytokines, therefore appearing to be critically involved in protection against infection caused by extracellular microorganisms, and in the pathogenesis of autoimmune diseases and allergy. The dynamic balance among subsets of T cells is important for the modulation of several steps of the immune response. Disturbances in this balance may cause a shift from normal immunologic physiology to the development of immune-mediated disorders. In autoimmune diseases, the fine balance between the proportion and degree of activation of the various T lymphocyte subsets can contribute to persistent undesirable inflammatory responses and tissue replacement by fibrosis. This review highlights the importance of TH17 cells in this process by providing an update on the biology of these cells and focusing on their biology and differentiation processes in the context of immune-mediated chronic inflammatory diseases.

Stem cell therapy for severe autoimmune diseases

Marmont,Alberto M.
Fonte: Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular Publicador: Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2002 EN
Relevância na Pesquisa
66.22%
Intense immunosuppresion followed by alogenic or autogenic hematopoietic stem cell transplantation is a relatively recent procedure which was used for the first time in severe, refractory cases of systemic lupus erythematosus. Currently three agressive procedures are used in the treatment of autoimmune diseases: high dose chemotherapy without stem cell rescue, intense immunosuppression with subsequent infusion of the alogenic hematopoietic stem cell transplantation combined with or without the selection of CD34+ cells, and the autogenic hematopoietic stem cell transplantation. Proof of the graft-versus-leukemia effect observed define SCT as a form of immunotherapy, with additional evidence of an similar Graft-vs-Autoimmunity effect which is suggestive of a cure for autoimmune diseases in this type of therapy. The use of alogenic SCT improved due to its safety compared to autogenic transplantations. In this report, data of multiply sclerosis and systemic lupus erythematosus are reported, with the conclusion that Immunoablation followed by SCT is clearly indicated in such cases.

Natural killer cells in human autoimmune diseases

Schleinitz, Nicolas; Vély, Frédéric; Harlé, Jean-Robert; Vivier, Eric
Fonte: Blackwell Science Inc Publicador: Blackwell Science Inc
Tipo: Artigo de Revista Científica
Publicado em /12/2010 EN
Relevância na Pesquisa
46.4%
Natural killer (NK) cells have been implicated in tumour surveillance and in the early control of several microbial infections. In autoimmune disease their involvement in these processes has been evaluated in animal models, with conflicting results. Both a disease-controlling and a disease-promoting role have been suggested. In human autoimmune disease only a few studies, mainly descriptive, have demonstrated qualitative and quantitative modification of NK cells. These changes were observed on blood- or tissue-infiltrating NK cells. Taken together with our expanding knowledge of the genetical variability of NK cell receptors and NK cell physiology, these findings pave the way for the dissection of the role of NK cells in human autoimmune diseases. NK cells may be directly involved in these diseases through their potential autoreactivity or through their interaction with dendritic cells, macrophages or T lymphocytes, thereby inducing excessive inflammation or favouring the adaptive autoimmune response. Thus, NK cells may be implicated in the onset, the maintenance or the progression of autoimmune diseases. Some reports also suggest the involvement of NK cells in the treatment of human autoimmune disease by biotherapies. All these observations suggest that NK cells are involved in the complex processes of autoimmune diseases. Nevertheless...

Sexual dimorphism of miRNA expression: a new perspective in understanding the sex bias of autoimmune diseases

Dai, Rujuan; Ahmed, S Ansar
Fonte: Dove Medical Press Publicador: Dove Medical Press
Tipo: Artigo de Revista Científica
Publicado em 03/03/2014 EN
Relevância na Pesquisa
46.4%
Autoimmune diseases encompass a diverse group of diseases which emanate from a dysregulated immune system that launches a damaging attack on its own tissues. Autoimmune attacks on self tissues can occur in any organ or body system. A notable feature of autoimmune disease is that a majority of these disorders occur predominantly in females. The precise basis of sex bias in autoimmune diseases is complex and potentially involves sex chromosomes, sex hormones, and sex-specific gene regulation in response to internal and external stimuli. Epigenetic regulation of genes, especially by microRNAs (miRNAs), is now attracting significant attention. miRNAs are small, non-protein-coding RNAs that are predicted to regulate a majority of human genes, including those involved in immune regulation. Therefore, it is not surprising that dysregulated miRNAs are evident in many diseases, including autoimmune diseases. Because there are marked sex differences in the incidence of autoimmune diseases, this review focuses on the role of sex factors on miRNA expression in the context of autoimmune diseases, an aspect not addressed thus far. Here, we initially review miRNA biogenesis and miRNA regulation of immunity and autoimmunity. We then summarize the recent findings of sexual dimorphism of miRNA expression in diverse tissues...

Pesquisa de autoanticorpos contra antígenos intracelulares, em células HEp-2, em Goiânia Goiás; Research on autoantibodies against intracellular antigens in HEp-2 cells, in Goiânia Goiás

RÊGO, Jozelia
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Ciencias da Saude; Ciencias da Saude Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Ciencias da Saude; Ciencias da Saude
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
46.44%
Autoimmune diseases are a clinical syndrome caused by the activation of T and/or B cells. They are multifactorial in nature and characterized by the presence of autoantibodies directed against cellular components. These autoantibodies can act as diagnostic markers or as predictors for these diseases. The ANA test is a very useful tool in the investigation of autoimmune diseases. OBJECTIVES: a) establishing a correlation between clinical diagnoses and fluorescence patterns in ANA tests on HEp-2 cells; b) determining the frequency of fluorescence patterns; c) establishing a correlation between clinical diagnosis and fluorescence titers; d) establishing possible correlations of changes in fluorescence patterns. CASES AND METHODS: All the ANA requests sent to the Immunorheumatology Laboratory of the Teaching Hospital of the Federal University of Goias, from January / 2000 to December / 2007 were analyzed and those with positive results were selected. For the ANA research, the investigator used the IFI technique and HEp-2 cells as substrate. To classify the fluorescence patterns decision trees proposed by the Brazilian Consensus for Standardization of ANA in HEp-2 cells were used. RESULTS: Among the 8,631 ANA requests, 1,167 presented positive results (13...

Hochdosierte intravenöse Immunglobulintherapie bei Autoimmunerkrankungen; High-dose intravenous immunoglobulins in the therapy of autoimmune diseases

Kück, Malte Hinrich
Fonte: Universidade de Tubinga Publicador: Universidade de Tubinga
Tipo: Dissertação
DE_DE
Relevância na Pesquisa
56.22%
Einleitung: Intravenöse Immunglobuline (IVIG) werden bei diversen Immunmangelsyndromen wie auch bei verschiedenen Autoimmunerkrankungen seit Jahren mit großem Erfolg eingesetzt. Bei dermatologischen Autoimmunerkrankungen erfolgt die Behandlung bisher „off-label“ und in der Regel als second-line-Therapie. Der Einsatz von IVIG wird hier bei besonders schweren Krankheitsverläufen, therapieresistenten Fällen und Kontraindikationen gegen die bisherige Therapie erwogen. Die Verabreichung erfolgt meist in Kombination mit Steroiden und mindestens einem weiteren Immunsuppressivum. Die IVIG-Therapie geht mit vielen potenziellen Nebenwirkungen einher. Ziele: In der vorliegenden Untersuchung wird herausgearbeitet, welche Therapieerfolge mit welchen IVIG-Dosen und in welchen Behandlungsintervallen bei Patienten mit verschiedenen Autoimmunerkrankungen erzielt wurden. Des Weiteren wird untersucht, welche unerwünschten Arzneimittelwirkungen unter der Therapie auftraten. Material und Methode: Die Datenanalyse umfasst 24 Patienten, die in einem Zeitraum von elf Jahren an der Universitäts-Hautklinik Tübingen mit IVIG behandelt wurden. Einschlusskriterien waren, dass die Patienten nicht oder nur unzureichend auf die Vortherapie ansprachen sowie eine der folgenden Diagnosen: Dermatomyositis...

Quality of life of patients with autoimmune diseases submitted to bone marrow transplantation: a longitudinal study; Calidad de vida de pacientes con enfermedades autoinmunes sometidos a transplante de médula ósea: un estudio longitudinal; Qualidade de vida de pacientes com doenças auto-imunes submetidos ao transplante de medula óssea: um estudo longitudinal

GUIMARÃES, Fabio Augusto Bronzi; SANTOS, Manoel Antônio dos; OLIVEIRA, Érika Arantes de
Fonte: Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo Publicador: Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.17%
This study aimed to assess the quality of life of patients with autoimmune diseases (AID) submitted to Bone Marrow Transplantation (BMT) at two different moments: when the patient is admitted at the hospital and at the moment of hospital discharge (30 days after the transplantation). Patients who attended the BMT unit, were older than 18 years, with conditions and availability to voluntarily collaborate to the study were selected. Data were collected through a semi-structured interview and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). The sample consisted of 19 patients attended at a university hospital in the interior of São Paulo State, Brazil. The collected data suggest these patients' quality of life is reduced before the realization of the transplantation, followed by a progression in their diseases. Immediately after the transplantation, an improved capacity to perform daily activities is observed, as well as a renewed possibility of making future plans.; El objetivo de este estudio fue evaluar la calidad de vida de pacientes con enfermedades auto-inmunes (EAI), sometidos al Transplante de Médula Ósea (TMO), en dos momentos distintos: en la admisión del paciente y durante la ocasión del alta hospitalaria (30 días después del transplante). Fueron seleccionados pacientes atendidos en la unidad de TMO...

The use of stem cells for the treatment of autoimmune diseases

Rosa,S.B.; Voltarelli,J.C.; Chies,J.A.B.; Pranke,P.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2007 EN
Relevância na Pesquisa
56.31%
Autoimmune diseases constitute a heterogeneous group of conditions commonly treated with anti-inflammatory, immunosuppressant and immunomodulating drugs, with satisfactory results in most cases. Nevertheless, some patients become resistant to conventional therapy. The use of high doses of drugs in such cases results in the need for bone marrow reconstitution, a situation which has stimulated research into the use of hematopoietic stem cells in autoimmune disease therapy. Stem cell transplantation in such diseases aims to destroy the self-reacting immune cells and produce a new functional immune system, as well as substitute cells for tissue damaged in the course of the disease. Significant results, such as the reestablishment of tolerance and a decrease in the recurrence of autoimmune disease, have been reported following stem cell transplantation in patients with autoimmune disease in Brazil and throughout the world. These results suggest that stem cell transplantation has the potential to become an important therapeutic approach to the treatment of various autoimmune diseases including rheumatoid arthritis, juvenile idiopathic arthritis, systemic lupus erythematosus, multiple sclerosis, systemic sclerosis, Crohn's disease, autoimmune blood cytopenias...

Hematopoietic stem cell transplantation for autoimmune diseases in Brazil: current status and future prospectives

Voltarelli,Júlio C.
Fonte: Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular Publicador: Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2002 EN
Relevância na Pesquisa
66.13%
In this paper, we discuss the launching of a cooperative protocol of hematopoietic stem cell transplantation for autoimmune diseases in Brazil. We present specific conditions of the country's health system which would affect the trial, preliminary results of the first nine patients transplanted under the protocol (4 systemic lupus, 3 multiple sclerosis, one systemic sclerosis and one overlapping lupus + systemic sclerosis) and future prospectives of organizing phase III randomized trials to answer specific scientific questions pending in the field.

Quality of life of patients with autoimmune diseases submitted to bone marrow transplantation: a longitudinal study

Guimarães,Fabio Augusto Bronzi; Santos,Manoel Antônio dos; Oliveira,Érika Arantes de
Fonte: Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo Publicador: Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2008 EN
Relevância na Pesquisa
66.17%
This study aimed to assess the quality of life of patients with autoimmune diseases (AID) submitted to Bone Marrow Transplantation (BMT) at two different moments: when the patient is admitted at the hospital and at the moment of hospital discharge (30 days after the transplantation). Patients who attended the BMT unit, were older than 18 years, with conditions and availability to voluntarily collaborate to the study were selected. Data were collected through a semi-structured interview and the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36). The sample consisted of 19 patients attended at a university hospital in the interior of São Paulo State, Brazil. The collected data suggest these patients' quality of life is reduced before the realization of the transplantation, followed by a progression in their diseases. Immediately after the transplantation, an improved capacity to perform daily activities is observed, as well as a renewed possibility of making future plans.

Targeting T Cells for the Immune-Modulation of Human Diseases

Lin, Regina
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Dissertação
Publicado em //2015
Relevância na Pesquisa
56.19%

Dysregulated inflammation underlies the pathogenesis of a myriad of human diseases ranging from cancer to autoimmunity. As coordinators, executers and sentinels of host immunity, T cells represent a compelling target population for immune-modulation. In fact, the antigen-specificity, cytotoxicity and promise of long-lived of immune-protection make T cells ideal vehicles for cancer immunotherapy. Interventions for autoimmune disorders, on the other hand, aim to dampen T cell-mediated inflammation and promote their regulatory functions. Although significant strides have been made in targeting T cells for immune-modulation, current approaches remain less than ideal and leave room for improvement. In this dissertation, I seek to improve on current T cell-targeted immunotherapies, by identifying and preclinically characterizing their mechanisms of action and in vivo therapeutic efficacy.

CD8+ cytotoxic T cells have potent antitumor activity and therefore are leading candidates for use in cancer immunotherapy. The application of CD8+ T cells for clinical use has been limited by the susceptibility of ex vivo-expanded CD8+ T cells to become dysfunctional in response to immunosuppressive microenvironments. To enhance the efficacy of adoptive cell transfer therapy (ACT)...

UVR, Vitamin D and three autoimmune diseases - Multiple Sclerosis, Type 1 Diabetes, Rheumatoid Arthritis

Ponsonby, Anne-Louise; Lucas, Robyn; van der Mei, Ingrid A F
Fonte: American Society of Photobiology Publicador: American Society of Photobiology
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
66.29%
We review the evidence indicating a possible beneficial role for UVR on three Th1-mediated autoimmune diseases: multiple sclerosis, type 1 diabetes and rheumatoid arthritis in relation to recent developments in photoimmunology. Recent work suggests that UVR exposure may be one factor that can attenuate the autoimmune activity leading to these three diseases through several pathways involving UVB and UVA irradiation, UVR-derived vitamin D synthesis and other routes such as a-melanocyte-stimulating hormone, calcitonin gene related peptide and melatonin. Ecological features, particularly a gradient of increasing prevalence of multiple sclerosis and type 1 diabetes with higher latitude, provide some support for a beneficial role of UVR. Analytical studies provide additional support, particularly as low vitamin D has been prospectively associated with disease onset for all three diseases, but are not definitive. Randomized controlled trial data are required. Further, we discuss how associated genetic studies may assist the accumulation of evidence with regard to the possible causal role of low UVR exposure and/or low vitamin D status in the development of these diseases.

Qualidade de vida de pacientes com doenças auto-imunes submetidos ao transplante de medula óssea: um estudo longitudinal; Calidad de vida de pacientes con enfermedades autoinmunes sometidos a transplante de médula ósea: un estudio longitudinal; Quality of life of patients with autoimmune diseases submitted to bone marrow transplantation: a longitudinal study

Guimarães, Fabio Augusto Bronzi; Santos, Manoel Antônio dos; Oliveira, Érika Arantes de
Fonte: Universidade de São Paulo. Escola de Enfermagem de Ribeirão Preto Publicador: Universidade de São Paulo. Escola de Enfermagem de Ribeirão Preto
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf; application/pdf; application/pdf
Publicado em 01/10/2008 ENG; POR; SPA
Relevância na Pesquisa
66.17%
O objetivo deste estudo foi avaliar a qualidade de vida de pacientes com doenças auto-imunes (DAI), submetidos ao Transplante de Medula Óssea (TMO), em dois momentos distintos: na admissão do paciente e por ocasião da alta hospitalar (30 dias após o transplante). Foram selecionados pacientes atendidos na unidade de TMO, maiores de 18 anos, que apresentaram condições e disponibilidade para colaborar voluntariamente. Para a coleta de dados utilizou-se roteiro de entrevista semi-estruturada e o Questionário de Avaliação de Qualidade de Vida - SF-36. A amostra foi composta por 19 pacientes atendidos em um hospital-escola do interior do Estado de São Paulo, Brasil. Os dados obtidos sugerem depreciação da qualidade de vida desses pacientes antes da realização do transplante, acompanhada da progressão de suas enfermidades. Imediatamente após o transplante já se percebe melhora da capacidade para realizar atividades do cotidiano e a possibilidade renovada de traçar planos futuros.; El objetivo de este estudio fue evaluar la calidad de vida de pacientes con enfermedades auto-inmunes (EAI), sometidos al Transplante de Médula Ósea (TMO), en dos momentos distintos: en la admisión del paciente y durante la ocasión del alta hospitalaria (30 días después del transplante). Fueron seleccionados pacientes atendidos en la unidad de TMO...

Thyroid autoantibodies in autoimmune diseases

Innocencio,Regina M.; Romaldini,João H.; Ward,Laura S.
Fonte: Medicina (Buenos Aires) Publicador: Medicina (Buenos Aires)
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2004 EN
Relevância na Pesquisa
66.34%
Abnormalities in the thyroid function and thyroid autoantibodies have been frequently described in patients with autoimmune diseases but seldom in antiphospholipid syndrome patients. In order to determine the prevalence of thyroid function and autoimmune abnormalities, we compared serum thyrotropin (TSH, serum free thyroxine (T4) levels, thyroid antithyroglobulin (TgAb) and antithyroperoxidase (TPOAb) levels of 25 patients with systemic sclerosis, 25 patients with rheumatoid arthritis and 13 patients with antiphospholipid syndrome to a control group of 113 healthy individuals. Evaluation included a thorough clinical examination with particular attention to thyroid disease and a serologic immune profile including rheumatoid factor, antinuclear and anticardiolipin antibody measurements. Subclinical hypothyroidism (4.2