4 research outputs found

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

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    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

    Efeito da acupuntura na variabilidade da frequência cardíaca em indivíduos com esclerose múltipla: um protocolo para ensaio randomizado controlado duplo cego

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    Backgroung: the growing of patients with multiple sclerosis seeking acupuncture treatment is based on clinical reports of improvements in symptoms. Considering that autonomic impairment, including cardiovascular autonomic dysfunction, is not uncommon in patients with MS, neuromodulation with acupuncture could be an interesting tool to change heart rate variability in this population. Objective: to evaluate heart rate variability in patients with multiple sclerosis, during the application of acupuncture, in order to analyze the behavior of the autonomic nervous system before, during and after therapy and changes in condition after a longitudinal intervention. Methods: a double-blinded randomized sham-controlled crossover trial with a 1:1 allocation ratio will be conducted, with 40 individuals without a previous illness, who will constitute the control group, and 40 individuals with Multiple Sclerosis, who will constitute the experimental group, paired by age and sex. All participants will undertake active or sham acupuncture sessions. Discussion: according to the studies found, cardiovascular autonomic dysfunction is expected, with alterations in heart rate variability. Although neuromodulation with acupuncture can control pain and inflammation, there are still difficulties in affirming whether the balance between the sympathetic and parasympathetic systems can be changed by acupuncture. Trial registration: We registered this trial on ClinicalTrials.gov, ID: NCT05523466Introdução: o crescimento de pacientes com esclerose múltipla que procuram tratamento com acupuntura é baseado em relatos clínicos de melhora dos sintomas. Considerando que o comprometimento autonômico, incluindo a disfunção autonômica cardiovascular, não é incomum em pacientes com EM a neuromodulação com acupuntura pode ser uma ferramenta interessante para alterar a variabilidade da frequência cardíaca nessa população. Objetivo: avaliar a variabilidade da frequência cardíaca em pacientes com esclerose múltipla, durante a aplicação da Acupuntura, a fim de analisar o comportamento do sistema nervoso autônomo antes, durante e após a terapia e as mudanças na condição após uma intervenção longitudinal. Métodos: será realizado um ensaio clínico cruzado, randomizado, placebo-controlado, duplo-cego, com proporção de alocação de 1:1, com 40 indivíduos sem doença prévia, que constituirão o grupo controle, e 40 indivíduos com Esclerose Múltipla, que constituirão o grupo experimental. grupo, pareado por idade e sexo. Todos os participantes realizarão sessões de acupuntura ativas ou simuladas. Discussão: de acordo com os estudos encontrados, é esperada disfunção autonômica cardiovascular, com alterações na variabilidade da frequência cardíaca. Embora a neuromodulação com acupuntura possa controlar a dor e a inflamação, ainda há dificuldades em afirmar se o equilíbrio entre os sistemas simpático e parassimpático pode ser alterado pela acupuntura. Registro do estudo: registramos este estudo em ClinicalTrials.gov, ID: NCT0552346
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