Publications by authors named "M Mitsuyama"

The electrocardiogram (ECG) is a common source of electrical artifact in electroencephalogram (EEG). Here, we present a novel method for removing ECG artifact that requires neither simultaneous ECG nor transformation of the EEG signals. The approach relies upon processing a subset of EEG channels that contain ECG artifact to identify the times of each R-wave of the ECG.

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This study investigated olfactory/taste functions in older persons requiring nursing care to clarify whether these functions are associated with appetite or nutritional status. Seventy-two older persons requiring nursing care and 37 unassisted persons were surveyed for olfactory function, taste function, appetite, and nutritional status. Age-adjusted covariance analysis was conducted between the two groups.

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Inflammasome activation exacerbates infectious disease caused by pathogens such as Listeria monocytogenes, Staphylococcus aureus, and severe acute respiratory syndrome coronavirus 2. Although these pathogens activate host inflammasomes to regulate pathogen expansion, the mechanisms by which pathogen toxins contribute to inflammasome activation remain poorly understood. Here we show that activation of inflammasomes by Listeria infection is promoted by amino acid residue T223 of listeriolysin O (LLO) independently of its pore-forming activity.

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Objective: To investigate olfactory function in elderly subjects requiring nursing care to clarify its association with appetite and nutritional status.

Setting: Facility for the elderly requiring nursing care.

Participants: The subjects were 158 elderly people requiring nursing care and 37 elderly people not requiring nursing care.

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Background/aim: Although mucociliary clearance is important for preventing pneumonia, its association with the onset of pneumonia is unclear. The aim of this study is to examine the association between saccharin test results as a potential measure of mucociliary clearance and history of pneumonia in nursing home residents.

Patients And Methods: Ninety elderly nursing home residents (elderly group) were selected, 35 of whom had a history of pneumonia.

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