نتایج جستجو برای: msa model
تعداد نتایج: 2106435 فیلتر نتایج به سال:
OBJECTIVE To determine ways to improve diagnostic accuracy of multiple system atrophy (MSA), we assessed the diagnostic process in patients who came to autopsy with antemortem diagnosis of MSA by comparing clinical and pathologic features between those who proved to have MSA and those who did not. We focus on likely explanations for misdiagnosis. METHODS This is a retrospective review of 134 ...
BACKGROUND External anal sphincter (EAS) electromyography (EMG) abnormalities can distinguish multiple system atrophy (MSA) from Parkinson's disease in the first five years after disease onset. However, the prevalence of the abnormalities in the early stages of MSA is unknown. OBJECTIVES To present EAS-EMG data in the various stages of MSA. METHODS 84 patients with "probable" MSA were recru...
Multiple system atrophy (MSA) is a rare, yet fatal neurodegenerative disease that presents clinically with autonomic failure in combination with parkinsonism or cerebellar ataxia. MSA impacts on the autonomic nervous system affecting blood pressure, heart rate and bladder function, and the motor system affecting balance and muscle movement. The cause of MSA is unknown, no definitive risk factor...
Hot cross bun sign refers to the cruciform-shaped hyperintensity on T2W axial magnetic resonance images (MRI) in multisystem atrophy due to the selective loss of myelinated transverse pontocerebellar fibers and neurons in the pontine raphe and sparing of the pontine tegmentum and corticospinal tracts [Figure 1, Figure 2].[1] The name derives from a sweet spiced bun baked by the Christian church...
This paper discusses a four-dimensional model of mindful sustainable aging (MSA) in the four biological, psychological, social, spiritual dimensions. The is made up eight components, activeness, bodily awareness, change processes, vigorousness, dynamism, mental alertness, social support and support. Modern western traditional Buddhist notions mindfulness/sati, their utility terms improving phys...
BACKGROUND Sleep disorders are common in multiple system atrophy (MSA), but the prevalence of excessive daytime sleepiness (EDS) is not well known. OBJECTIVE To assess the frequency and associations of EDS in MSA. DESIGN Survey of EDS in consecutive patients with MSA and comparison with patients with Parkinson disease (PD) and individuals without known neurologic disease. SETTING Twelve t...
The merozoite surface antigen 2 (MSA-2) proteins of Babesia bovis are members of the variable merozoite surface antigen (VMSA) family that have been implicated in erythrocyte invasion and are important targets for antibody-mediated blocking of invasion. Extensive sequence variation in another VMSA member, MSA-1, has been shown in all vaccine breakthrough isolates. To test the hypothesis that th...
A study of a model rod-like polyelectrolyte molecule immersed into a monovalent or divalent electrolyte is presented. Results from the hypernetted-chain/mean spherical approximation (HNC/MSA) theory, for inhomogeneous charged fluids, are compared with molecular dynamics (MD) simulations. As a particular case, the parameters of the polyelectrolyte molecule are mapped to those of a DNA molecule. ...
Muscle synergy analysis (MSA) is a mathematical technique that reduces the dimensionality of electromyographic (EMG) data. Used increasingly in biomechanics research, MSA requires methodological choices at each stage of the analysis. Differences in methodological steps affect the overall outcome, making it difficult to compare results across studies. We applied MSA to EMG data collected from in...
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