Publications by authors named "M Hase"
Polarons can control carrier mobility and can also be used in the design of quantum devices. Although much effort has been directed into investigating the nature of polarons, observation of defect-related polarons is challenging due to electron-defect scattering. Here we explore the polaronic behavior of nitrogen-vacancy (NV) centers in a diamond crystal using an ultrafast pump-probe technique.
View Article and Find Full Text PDFBackground: The aim of this study was to clarify when and from which blood vessels indirect revascularization develops after combined revascularization surgery for moyamoya disease and how the donor vessels that undergo direct revascularization change in the medium to long term. In particular, we focused on the middle temporal artery (MTA), which has not received much attention in indirect revascularization surgery for moyamoya disease until now.
Methods: We targeted 20 sides that were suitable for evaluating the diameter of the external carotid artery system involved in combined revascularization surgery among moyamoya disease patients who underwent a composite revascularization procedure utilizing a 'U'-shaped skin incision encircling the parietal branch of the superficial temporal artery (STA) at our institution from 2018 to 2023.
Article Synopsis
- Pericytes, which are mural cells in the neurovascular unit, help maintain the blood-brain barrier and cerebral blood flow, and their role in dementia, particularly in the hippocampus, is not well understood.
- A study of 90 post-mortem brains revealed that pericyte densities were significantly lower (25-40%) in patients with post-stroke dementia, vascular dementia, and Alzheimer's disease when compared to controls, especially in the cornu ammonis (CA) 1 region.
- Mouse models showed a 60% loss of pericytes with chronic hypoperfusion, but engaging these mice in an enriched environment helped reduce pericyte loss and associated hippocampal atrophy, suggesting that a vascular
We previously examined the cellular uptake of six types of vitamin D in human intestinal Caco-2 cells. Since vitamins D-D were commercially unavailable, we synthesized these compounds organically before studying them. This process led us to understand that new secosteroids could be generated as vitamin D candidates, depending on the sterol used as the starting material.
View Article and Find Full Text PDFBackground: Gasping during resuscitation has been reported as a favorable factor for out-of-hospital cardiac arrest. We examined whether gasping during resuscitation is independently associated with favorable neurological outcomes in patients with refractory ventricular fibrillation or pulseless ventricular tachycardia (VF/pVT) undergoing extracorporeal cardiopulmonary resuscitation ECPR.
Methods: Data from a 2014 study on advanced cardiac life support for ventricular fibrillation with extracorporeal circulation in Japan (SAVE-J), which examined the efficacy of ECPR for refractory VF/pVT, were analyzed.