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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

AvaliaÃÃo clÃnico-laboratorial de pacientes com artrite reumatÃide: anÃlise comparativa do fator reumatÃide e de anticorpos anticitrulina / Evaluation clinical-laboratory of patients with rheumatoid arthritis: comparative analysis of anticitrullina the rheumatoid factor and antibodies

Vilena Barros de Figueiredo 04 October 2005 (has links)
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / A artrite reumatÃide à uma doenÃa auto-imune crÃnica e inflamatÃria que evolui com graus de destruiÃÃo articular e alteraÃÃes extra-articulares podendo levar a incapacidade funcional. AlÃm da avaliaÃÃo clÃnica o diagnÃstico baseia-se na determinaÃÃo do fator reumatÃide (FR) sendo que este à tambÃm positivo em indivÃduos saudÃveis como tambÃm em outras doenÃas auto-imunes e infecciosas. Os anticorpos antipeptÃdeos citrulinados cÃclicos (anti-CCP) tem sido usados no diagnÃstico da artrite reumatÃide sendo superiores ao fator reumatÃide (FR) no diagnÃstico da artrite reumatÃide (AR) recente. O estudo teve como objetivo demonstrar a presenÃa de anticorpos anticitrulina em pacientes com o diagnÃstico de artrite reumatÃide comparando com parÃmetros clÃnicos, laboratoriais e com a avaliaÃÃo da qualidade de vida desses pacientes. Para avaliar a qualidade de vida foi aplicado o questionÃrio âHealth Assessment Questionnaire.â Foi realizado um teste por imunoturbidimetria, para a detecÃÃo de FR (Roche, Indianopolis, EUA) e ELISA para o anti-CCP (Inova , San Diego, EUA) em 69 pacientes apresentando, ao menos, 4 dos critÃrios do ColÃgio Americano de Reumatologia para a classificaÃÃo de AR e em 20 controles saudÃveis. A anÃlise estatÃstica utilizou o teste exato de Fisher e teste de Spearmann com significÃncia alcanÃada com P<0.05. Os pacientes com AR tinham entre 18-75 (mÃdia = 43.9 anos), 66 (95.7%) eram mulheres, os controles com idades variando entre 20-60 anos. O inÃcio da AR variou de 4 a 384 meses (mÃdia = 74.0 e mediana = 48.0). FR foi positivo em 48 (69.6%) pacientes e 1 (0,5%) controle. O anti-CCP foi positivo em 36 (52.2%) pacientes e em 2 (10%) controles. Foi observada uma correlaÃÃo significante dos testes FR e anti-CCP com P< 0.0001 e este estudo sugere que o anti-CCP nÃo foi superior ao FR no diagnÃstico da AR estabelecida / Rheumatoid arthritis is an inflammatory, chronic and auto-immune disease that develops in degrees of articular destruction and extra-articular changes being able to lead to functional disability. Besides clinical assessment the diagnosis is based on the determination of the rheumatoid factor being this one also positive in healthy people as well as in other infectious and auto-immune diseases. Anticyclic citrullinated peptide (anti-CCP) antibodies have been used in diagnosis of rheumaoid arthritis (RA) and seen to be superior to rheumatoid factor (RF) in early onset RA diagnosis. The target of the study is to demonstrate the presence of anticitrulline antibodies in patients with rheumatoid arthritis diagnostic comparing with laboratory, clinical parameters and with the assessment of the quality of life of these patients. The âHealth Assessment Questionnaireâ has been used to assess the quality of life. We performed an immunoturbidimetry test for detection of RF (Roche,Indianopolis, USA) and an ELISA for anti-CCP antibodies (Inova, San Diego, USA) in 69 patients presenting, at least, 4 of the American College of Rheumatology criteria for classification of RA and in 20 healthy controls. For statistical analysis we used thr Fisher exact test and the Spearmann test Significance was reached wuth P<0.05. RA patients were aged between 18-75 years (mean = 43.9 years), 66 (95.7%) of then were female, controls age ranged between 20-60 years.The period of RA onset varied from 4 to 384 months (mean = 74.0 and median = 48.0). RF was positive in 48 (69.6%) patients and in 1 (0,5%) control. The anti-CCP was positive in 36 (52.2%) patients and in 2 (10%) controls. A significant correlation of RF and anti-CCP tests was observed with P< 0,0001 and this study suggests that anti-CCP was not superior to RF in diagnosis of established RA
2

AÃÃo anti-nociceptiva do renaleto de estrÃncio na hipernocicepÃÃo inflamatÃria induzido por zymosan na articulaÃÃo temporomandibular de ratos envolve a inibiÃÃo de tnf&#945; / Anti-nociceptive action of strontium ranelate in zymosan-induced temporomandibular joint inflammatory hypernociception in rats involves TNF-a inhibition but not IL-1&#946; inhibition neither HO-1 pathway activation

Sheila Moreira Alves 10 February 2015 (has links)
Os distÃrbios na articulaÃÃo temporomandibular (ATM) estÃo associados com dor inflamatÃria. O ranelato de estrÃncio à utilizado no tratamento da osteoporose. Embora o mecanismo de aÃÃo de ranelato nÃo esteja elucidado, hà provas de seu efeito analgÃsico. Investigamos a eficÃcia do Ranelato na hipernocicepÃÃo inflamatÃria induzido pelo zymosan na ATM de ratos, avaliando o envolvimento TNF-&#945;, IL-1&#946;, e hemeoxygenase-1. Ratos Wistar foram tratados previamente com Ranelato (0,5, 5 ou 50 mg / kg) antes da injeÃÃo de zymosan na ATM. O Teste de Von Frey foi utilizado para avaliar hipernocicepÃÃo. ApÃs a injeÃÃo de zymosan o lavado sinovial foi recolhido para a contagem de leucÃcitos e dosagem de mieloperoxidase; tecido periarticular e no gÃnglio trigeminal foram retirados para anÃlise histopatolÃgica (H & E), e dosagem dos nÃveis de TNF-&#945; e IL-1&#946; (ELISA). Para imuno-histoquÃmica, secÃÃes da ATM foram submetidas ao anticorpo de TNF-&#945; e IL-1&#946;. AlÃm disso, os ratos foram tratados com ZnPP-IX (3 mg / kg), um inibidor especÃfico da enzima hemeoxigenase-1 (HO-1), antes do Ranelato (0,5 mg / kg). AlÃm disso, Azul de Evans (5 mg / kg) foi administrado para avaliar o extravasamento plasmÃtico. Ranelato aumentou o limiar nociceptivo. Embora Ranelato nÃo foi capaz de reduzir a contagem de leucÃcitos, a atividade da mieloperoxidase, o extravasamento de azul de Evans, os nÃveis de IL-1&#946;, imunomarcaÃÃo de IL-1&#946;, foi eficaz na reduÃÃo dos nÃveis de TNF-&#945;. AlÃm disso, ZnPP-IX nÃo alterou a eficÃcia do Ranelato. Ranelato parece exercer seus efeitos de reduzir nociceptivos por meio da reduÃÃo de TNF-&#945; no gÃnglio trigeminal. AlÃm disso, o efeito anti-nociceptivo do ranelato independe de IL-1&#946; e HO-1. / Temporomandibular joint (TMJ) disorders are associated with inflammatory pain. Strontium ranelate is used in osteoporosis. Though the mechanism of action of Ranelate is unclear, there is evidence of its analgesic effect. We investigate Ranelate efficacy in zymosan-induced TMJ hypernociception in rats evaluating TNF-&#61537;, IL-1&#946;, and hemeoxygenase-1 involvement. Wistar rats were pretreated with Ranelate (0.5, 5 or 50mg/kg) before zymosan injection in TMJ. Von Frey test was used to evaluate hypernociception. After zymosan injection synovial lavage was collected for leukocyte counting and myeloperoxidase measurement; joint tissue and trigeminal ganglion for histopathological analysis (H&E), and TNF-&#61537;/IL-1&#946; levels dosage (ELISA). To immunohistochemistry, TMJ sections were subjected to both TNF-&#61537;/IL-1&#946; antibody. Also, rats were treated with ZnPP-IX (3 mg/kg), a specific HO-1 inhibitor, before Ranelate (0.5 mg/kg). Further, Evans Blue (5 mg/kg) was administered to assess plasma extravasation. Ranelate increased the nociceptive threshold. Although Ranelate was not able to reduce leukocyte counting, myeloperoxidase activity, Evans Blue extravasation, IL-1&#946; levels, and TNF-&#61537;/IL-1&#61538; immunolabeling, it was effective in reducing TNF-&#61537; levels. Further, ZnPP-IX did not changed Ranelate efficacy. Ranelate may achieve its nociceptive-alleviating effects through reducing TNF-&#61537; levels in trigeminal ganglion. Further, the Ranelate anti-nociceptive effect is IL-1&#61538; and HO-1-independent.

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