Yosuke Nishihata

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Obstructive sleep apnea (OSA) is associated with the progression of cardiovascular disease (CVD), particularly in the middle-aged population. However, the clinical importance of OSA as a risk for CVD in the elderly population remains controversial. Moreover, evidence for the effectiveness of continuous positive airway pressure (CPAP) treatment for the(More)
BACKGROUND Obstructive sleep apnea (OSA) increases the risk of cardiovascular disease (CVD) and has been reported to be associated with chronic kidney disease (CKD). Recent studies have demonstrated that cystatin C is a prognostic biomarker of the risk of death and CVD even in patients without established CKD. METHODS In a cross-sectional study, we(More)
This study was conducted to investigate the impact of the severity of obstructive sleep apnoea (OSA) and metabolic syndrome (MS) on left ventricular (LV) hypertrophy and LV diastolic function. Echocardiography for evaluation of LV hypertrophy (defined by relative wall thickness (RWT) and LV mass index (LVMI)) and for diastolic function (defined by the early(More)
The chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA) have been recently much focused as independent risks for cardiovascular disease. Furthermore, the complication of both has a worse prognosis compared with patients with only one of these diseases. However, the details of the underlying mechanisms of this worsened prognosis(More)
Despite some slight differences in symptomatology, differential diagnosis of methamphetamine-induced psychosis (MAP) versus schizophrenia can be challenging because both disorders present a large overlap in their clinical symptoms. However, a recent study has shown that near-infrared spectroscopy (NIRS) performed during a cognitive task can be a powerful(More)
BACKGROUND Clozapine-induced agranulocytosis (CIA)/clozapine-induced granulocytopenia (CIG) (CIAG) is a life-threatening event for schizophrenic subjects treated with clozapine. METHODS To examine the genetic factor for CIAG, a genome-wide pharmacogenomic analysis was conducted using 50 subjects with CIAG and 2905 control subjects. RESULTS We identified(More)
BACKGROUND Obstructive sleep apnea (OSA) and left ventricular (LV) hypertrophy are considered to be closely associated. However, the relationship has not yet been fully demonstrated and is hence still controversial. The purpose of this study was to assess in hypertensive male patients the relationship between OSA and cardiac structure using a new index,(More)
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