Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse

The plasmacytoid dendritic cells (pDCs) express a high level of Toll-like receptor 9 (TLR-9), which recognizes viral DNA. Activated via TLR-9, pDCs also secrete large amounts of type I interferon which are involved either in stimulation or down regulation of immune response in multiple sclerosis (MS). In the present study, we determinate pDCs levels by flow cytometry in Cerebrospinal Fluid (CSF) and Peripheral Blood from MS patients in relapsing and in remitting phases of the disease, comparing with other non-inflammatory diseases (OND). We provide evidence that MS patients in relapse without any treatment have a significantly (p < 0.01) higher percentage of pDCs in CSF than do patients in remission or those with OND. No change in the percentage of pDCs was observed in the peripheral blood of any of these patients. The increase of pDCs in central nervous system during relapse may be explained either by a virus infection or a down regulatory process

Surface-Based Analyses of Anatomical Properties of the Visual Cortex in Macular Degeneration

INTRODUCTION: Macular degeneration (MD) can cause a central visual field defect. In a previous study, we found volumetric reductions along the entire visual pathways of MD patients, possibly indicating degeneration of inactive neuronal tissue. This may have important implications. In particular, new therapeutic strategies to restore retinal function rely on intact visual pathways and cortex to reestablish visual function. Here we reanalyze the data of our previous study using surface-based morphometry (SBM) rather than voxel-based morphometry (VBM). This can help determine the robustness of the findings and will lead to a better understanding of the nature of neuroanatomical changes associated with MD. METHODS: The metrics of interest were acquired by performing SBM analysis on T1-weighted MRI data acquired from 113 subjects: patients with juvenile MD (JMD; n = 34), patients with age-related MD (AMD; n = 24) and healthy age-matched controls (HC; n = 55). RESULTS: Relative to age-matched controls, JMD patients showed a thinner cortex, a smaller cortical surface area and a lower grey matter volume in V1 and V2, while AMD patients showed thinning of the cortex in V2. Neither patient group showed a significant difference in mean curvature of the visual cortex. DISCUSSION: The thinner cortex, smaller surface area and lower grey matter volume in the visual cortex of JMD patients are consistent with our previous results showing a volumetric reduction in their visual cortex. Finding comparable results using two rather different analysis techniques suggests the presence of marked cortical degeneration in the JMD patients. In the AMD patients, we found a thinner cortex in V2 but not in V1. In contrast to our previous VBM analysis, SBM revealed no volumetric reductions of the visual cortex. This suggests that the cortical changes in AMD patients are relatively subtle, as they apparently can be missed by one of the methods

Monthly variation of multiple sclerosis activity in the southern hemisphere: analysis from 996 relapses in Brazil

Background and purpose: Seasonal variations of multiple sclerosis (MS) activity have been reported, however, most data come from studies in the northern hemisphere. Methods: We reviewed medical records of MS patients living in Campinas region, Brazil. The first symptoms' date was defined as the relapse month. Climatic information included UV radiation index, median temperature, rainfall, and humidity. Results: Two hundred and nine patients were included. The incidence of relapses was highest in January (11.2%) and December (10.4%) and lowest in November (5.7%) and October (7.0%) (P < 0.015). The months with highest incidence of relapses (December-January) had higher UV radiation index and humidity rates (P = 0.032 and 0.040, respectively). Conclusion: Most exacerbations were in the spring/summer transition, which also showed higher UV radiation index and humidity rate. Along with other environmental factors, seasonal fluctuation contributes to MS activity.19466066

Prognostic indicators for long-term disability in multiple sclerosis patients

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Background: Daily practice is still faced with uncertainty in predicting the long-term disability of multiple sclerosis (MS). Most information comes from northern hemisphere cohorts, but in South America this information is scarce, and race, genetic and environmental factors could play an important role in the heterogeneity observed in disease outcomes. Methods: We evaluated 197 patients attending our MS Center gathering clinical and demographic information. Outcome measures analyzed were time from first clinical symptom to EDSS of 6, 7 and 8. For survival analysis we employed Cox regression models and the Kaplan-Meier method. Results: Time to EDSS 6 was 25.83 years (95% CI 15.36-36.31), and 36.25 years (95% CI 20.72-51.78) for EDSS 7. Male sex was associated with a 4.63 and 4.69 fold increased risk to EDSS 6 and 7, respectively (p < 0.001 and p = 0.006). Motor and brainstem symptoms at onset were also associated with an 8.1 and 13.1 fold increased risk to EDSS 6, respectively (p = 0.04 and p = 0.01). The number of relapses in five and ten years of disease onset was associated with a slightly increased risk to EDSS 8 (1.28 and 1.19, respectively; p = 0.032 and p = 0.015). Conclusions: Male patients presenting with frequent relapses, especially those with motor and brainstem involvement, deserve close observation and should be cautiously monitored to early signs of treatment failure. (C) 2012 Elsevier B.V. All rights reserved.324416712933Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP [2010/00885-4

The Use Of Synthetic Plaster Casting Tape For Hand And Wrist Splints

In a prospective study, 40 patients were fitted with synthetic plaster splints to assess the use of such material for hand and/or wrist splints. Factors assessed in both splint fabrication and use included molding properties, elastic traction fixation, weight, ventilation, durability, patient comfort, effectiveness, practicability, time, and cost. The patients were divided into three groups according to basic pathology: tendon/nerve injuries; bone and joint disorders; and rheumatoid disease deformities. Recovery of 50-100% of active range of motion was considered a good result. Good results were obtained in 37 patients (92.5%), whereas in the remaining three patients (7.5%) the results were poor. It is suggested that synthetic plaster is a suitable material for the fabrication of splints in hand rehabilitation.94391393Tribuzi, S.M., Serial plaster splinting (1995) Rehabilitation of the Hand, 4th Ed., pp. 1599-1608. , Hunter JM, Mackin EJ, Callahan AD (eds.). St. Louis, MosbyFess, E.E., Principles and methods of splinting for mobilization of joints (1995) Rehabilitation of the Hand, 4th Ed., pp. 1589-1598. , Hunter JM, Mackin EJ, Callahan AD (eds.). St. Louis, Mosb

The Use Of Synthetic Plaster Casting Tape For Hand And Wrist Splints.

In a prospective study, 40 patients were fitted with synthetic plaster splints to assess the use of such material for hand and/or wrist splints. Factors assessed in both splint fabrication and use included molding properties, elastic traction fixation, weight, ventilation, durability, patient comfort, effectiveness, practicability, time, and cost. The patients were divided into three groups according to basic pathology: tendon/nerve injuries; bone and joint disorders; and rheumatoid disease deformities. Recovery of 50-100% of active range of motion was considered a good result. Good results were obtained in 37 patients (92.5%), whereas in the remaining three patients (7.5%) the results were poor. It is suggested that synthetic plaster is a suitable material for the fabrication of splints in hand rehabilitation.9391-

Impact of electroacupuncture on quality of life for patients with Relapsing-Remitting Multiple Sclerosis under treatment with immunomodulators: A randomized study

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Background: Multiple sclerosis (MS) is a complex autoimmune disease mediated by an immune response to central nervous system antigens. Modern immunomodulatory therapies, however, do not ameliorate many of the symptoms, such as pain and depression. Patients thus seek alternative treatments, such as acupuncture, although the benefits of such treatments have not been objectively evaluated. The present study was thus designed to evaluate the effect of the use of acupuncture in the alleviation of the symptoms of patients with MS. Methods: Thirty-one patients with Relapsing-Remitting Multiple Sclerosis undergoing treatment with immunomodulators were randomly distributed into sex-stratified experimental and placebo groups in a patient- and evaluator-blind design; they received either true or sham electroacupuncture during regular visits to the doctor in the university hospital outpatient clinic. Standardized questionnaires were used to evaluate the effect of electroacupuncture on the quality of life of these patients. Initial and follow-up assessment included the evaluation of clinical status (Expanded Disability Status Scale), pain (Visual Analogue Scale) and quality of life (Functional Assessment of multiple Sclerosis) to ascertain the impact of electroacupuncture on the quality of life of these patients. Results: Electroacupuncture improved various aspects of quality of life, including a reduction in pain and depression. The self-report scales were more sensitive to improvement than was the more objective clinical measure. Conclusion: This paper provides evidence that electroacupuncture can significantly improve the quality of life of such patients. The results suggest that the routine use of a self-report scale evaluating quality of life should be included in regular clinical evaluations in order to detect changes more rapidly.12Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

Disappearance of cerebrospinal fluid oligoclonal bands after natalizumab treatment of multiple sclerosis patients

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Intrathecal immunoglobulin synthesis in an oligoclonal pattern is the most common immunologic abnormality detected in MS patients. Various treatments, such as immunomodulators and immunosuppressors, have not been found to modify it. Natalizumab hinders migration of encephalitogenic T-cells into the central nervous system (CNS), reducing inflammatory response. Its impact on CSF oligoclonal bands (OCBs) has not been demonstrated. This report describes its effect in four out of six patients with multiple sclerosis after a mean of 10 infusions: the CSF was negative for OCBs at the second lumbar puncture. In conclusion, natalizumab treatment can reduce CSF OCBs to undetectable levels, although the clinical significance of this observation is not yet known.18710381041Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)FAPESP [2010/10725-4