Yuki Izumi

ORCID: 0000-0003-3004-906X
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About
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Research Areas
  • Cardiac Valve Diseases and Treatments
  • Cardiovascular Function and Risk Factors
  • Infective Endocarditis Diagnosis and Management
  • Cardiac, Anesthesia and Surgical Outcomes
  • Cardiomyopathy and Myosin Studies
  • Aortic Disease and Treatment Approaches
  • Cardiac Structural Anomalies and Repair
  • Congenital Heart Disease Studies
  • Crystallization and Solubility Studies
  • Cardiac Imaging and Diagnostics
  • Heart Failure Treatment and Management
  • X-ray Diffraction in Crystallography
  • Glycosylation and Glycoproteins Research
  • Monoclonal and Polyclonal Antibodies Research
  • Cardiac Arrhythmias and Treatments
  • Organic Electronics and Photovoltaics
  • Frailty in Older Adults
  • Organoboron and organosilicon chemistry
  • Cardiovascular and Diving-Related Complications
  • Coordination Chemistry and Organometallics
  • Pancreatic and Hepatic Oncology Research
  • Cell Adhesion Molecules Research
  • Stroke Rehabilitation and Recovery
  • Atrial Fibrillation Management and Outcomes
  • Oxidative Organic Chemistry Reactions

Sakakibara Hospital
2013-2025

Horiba (Japan)
2023-2024

Tokushima University Hospital
2022-2023

Hiroshima University
2006-2022

Teine Keijinkai Hospital
2019-2021

Nippon Medical School
2016-2019

University of Fukui
2019

Hokkaido University of Science
2019

Asahikawa Medical University
2018

Juntendo University
2018

The actually direct Suzuki–Miyaura coupling with "protected" R–B(dan) (dan = naphthalene-1,8-diaminato) was demonstrated to smoothly occur without in situ deprotection of the B(dan) moiety. use t-BuOK (Ba(OH)2 some cases) as a base under anhydrous conditions is key successful cross-coupling, where readily converted into transmetalation-active borate-form, regardless well-accepted diminished boron-Lewis acidity.

10.1021/acscatal.9b03666 article EN ACS Catalysis 2019-10-11

Importance The characteristics and treatment strategies of atrial functional mitral regurgitation (AFMR) are poorly understood. Objective To investigate the prevalence, clinical characteristics, outcomes valve (MV) surgery in AFMR. Design, Setting, Participants This retrospective cohort study, called Real-World Observational Study for Investigating Prevalence Therapeutic Options Atrial Functional Mitral Regurgitation (REVEAL-AFMR), was conducted across 26 Japanese centers (17 university...

10.1001/jamanetworkopen.2024.28032 article EN cc-by-nc-nd JAMA Network Open 2024-08-15

Background In patients with sarcoidosis, cardiac involvement is a crucial prognostic factor leading to severe cardiovascular events. Mitral regurgitation (MR) predisposes drug‐refractory heart failure; however, MR in sarcoidosis (CS) has been scarcely investigated and its therapeutic approach remains unclear. This study aimed investigate the clinical impact of transcatheter edge‐to‐edge repair CS. Methods Patients CS‐related ventricular functional were compared those other nonischemic...

10.1161/jaha.124.039243 article EN cc-by-nc-nd Journal of the American Heart Association 2025-03-27

The prognostic relevance of plasma volume reduction (PVR) in acute heart failure patients remains unclear because the confounding hemodynamic effect left ventricular ejection fraction impairment on kidney function.Subjects enrolled West Tokyo Heart Failure Registry were examined. PV at admission and discharge was estimated from subjects' body weight its deviation ideal weight. Patients top tertile PVR classified as PVR+. Of 381 with failure, 181 (47.5%) had preserved (HFpEF). Estimated...

10.1161/circheartfailure.114.001734 article EN Circulation Heart Failure 2015-03-04

Background The management of mixed aortic valve disease (MAVD), defined as the concomitant presence stenosis (AS) and regurgitation, remains a clinical challenging. present study assessed impact transcatheter replacement (TAVR) on cardiac geometry prognosis in patients with MAVD. Methods Results A retrospective multicenter TAVR registry was conducted, including who underwent for severe symptomatic AS between January 2015 March 2019. Patients were subdivided into 2 groups according to...

10.1161/jaha.123.033289 article EN cc-by-nc-nd Journal of the American Heart Association 2024-02-16

During next generation sequencing (NGS) analysis, many missense mutations were found in a well-known oncogene, of which variant uncertain significance mutations. We recently treated an adult patient with pancreatoblastoma by chemotherapy. Using NGS cancer panel, we previously unreported mutation the 1835 codon adenomatous polyposis coli (APC) gene. also heterogeneous APC gene patient's germline Sanger sequencing. Although this did not have history familial polyposis, functional analysis...

10.18632/oncotarget.24017 article EN Oncotarget 2018-01-06

Although obesity is associated with left ventricular hypertrophy, diastolic dysfunction, and occurrence of atrial fibrillation (AF), obese heart failure (HF) patients have a more favorable clinical outcome (obesity paradox). The impact AF on or lean HF has not been fully elucidated.Methods Results:We analyzed 1,681 who were enrolled in the West Tokyo Heart Failure Registry (WET-HF Registry), multicenter, prospective cohort registry from 2005 through 2014. We assigned them to 3 categories...

10.1253/circj.cj-16-1130 article EN Circulation Journal 2017-01-01

// Shigeo Yamaguchi 1 , Shin Takahashi 2 Kaoru Mogushi 3 Yuki Izumi Yumi Nozaki Tadashi Nomizu 4 Yoichiro Kakugawa 5 Takanori Ishida 6 Noriaki Ohuchi Chikashi Ishioka and Shunsuke Kato 1, Department of Clinical Oncology, Juntendo University Graduated School, Tokyo 113-8421, Japan Institute Development, Aging Cancer, Tohoku University, Sendai 980-8575, Diagnostics Therapeutics Intractable Diseases, Disease Research Center, Surgery, Hoshi General Hospital, Fukushima 963-8501, Breast Miyagi...

10.18632/oncotarget.24447 article EN Oncotarget 2018-02-08

A new dimethyl(phenyl)silylborane having a naphthalene-1,8-diaminato (dan) substituent on the boron center, PhMe2Si-B(dan), was synthesized. Owing to diminished Lewis acidity, it is highly stable toward air. Synthetic application of silylborane catalytic silylboration and silylation alkynes also described.

10.1039/d2dt00962e article EN Dalton Transactions 2022-01-01

The aim of this study was to investigate the use a newly developed micro-computed tomography (micro-CT) system for diagnosis oral pathologies in small animals, using rabbit as model. dental diseases rabbits is usually based on endoscopy and radiographic imaging, but detailed pathological these methods frequently difficult. Micro-CT used address challenge. This conducted 50 privately owned rabbits, presented our hospital due loss appetite or difficulty feeding. Image recording times were 18 s...

10.1186/s12917-014-0209-4 article EN cc-by BMC Veterinary Research 2014-09-04

Trisilanylene-bridged oligothiophenes were synthesized, and their vapor-deposited spin-coated films examined as p-type semiconductors in field-effect transistors (FET). Of these, the best FET performance was achieved by using tris[(ethylquinquethiophenyl)dimethylsilyl]methylsilane active material, whose mobility on/off ratio determined to be 6.4 × 10-2 cm2 V-1 s-1 104, respectively. Interestingly, trisilanylene-bridged found photoactive activity of suppressed, when irradiated air (254 nm),...

10.1021/om700631s article EN Organometallics 2007-11-06

Non-cardiac surgery for hypertrophic obstructive cardiomyopathy (HOCM) is considered to require meticulous perioperative care. β-blockers are the first-line drugs patients with HOCM, and they play a key role in preventing cardiovascular complications The bisoprolol transdermal patch has recently become available Japan, it useful who unable take oral medication during aim of this case series was assess hemodynamic features HOCM used care non-cardiac surgery.Between August 2016 2018, we...

10.1186/s12872-019-01274-6 article EN cc-by BMC Cardiovascular Disorders 2019-12-01

Background Prognostic implications of transcatheter aortic valve implantation (TAVI) in low‐gradient (LG) stenosis (AS) remain controversial. The authors hypothesized that differences cardiac functional recovery may solve this ongoing controversy. aim was to evaluate clinical outcomes and the response left ventricular (LV) function following TAVI patients with LG AS. Methods Results This multicenter retrospective study included 1742 severe AS undergoing between January 2015 March 2019....

10.1161/jaha.123.029717 article EN cc-by-nc-nd Journal of the American Heart Association 2023-08-10

Abstract Aims The aim of this study was to identify phenotypes with potential prognostic significance in aortic stenosis (AS) patients after transcatheter valve replacement (TAVR) through a clustering approach. Methods and results This multi-centre retrospective included 1365 severe AS who underwent TAVR between January 2015 March 2019. Among demographics, laboratory, echocardiography parameters, 20 variables were selected dimension reduction used for unsupervised clustering. Phenotypes...

10.1093/ehjopen/oead136 article EN cc-by-nc European Heart Journal Open 2023-12-20

ABSTRACT Self‐assembled structures from poly(isoprene‐b‐styrene‐b‐2‐vinylpyridine)(ISP)/styrene homopolymer blend were investigated. Five terpolymers whose total molecular weight, M , is in the narrow range of 121k < 214k, and volume fractions center block polystyrenes, ϕ S are similar at around 0.55, prepared as parent terpolymers. Their P / I ratios, used an indicator asymmetry, varied 0.32 2.46. Three low‐molecular weight styrene homopolymers with weights 3k, 9k, 12k, respectively,...

10.1002/polb.23714 article EN Journal of Polymer Science Part B Polymer Physics 2015-03-25

The discharge of elderly patients from hospital on the basis their independent gait program (DOPPO) is a new rehabilitation strategy for physically frail hospitalized that aims to recover and achieve ambulatory discharge. We retrospectively investigated baseline determinants physical measures associated closely with 6-min walking distance (6MWD) after DOPPO. Participants were 137 consecutive inpatients, irrespective causative disease (mean age: 82±7 years; 76 women), who had Short Physical...

10.1097/mrr.0000000000000308 article EN cc-by-nc-nd International Journal of Rehabilitation Research 2018-08-07

We herein investigate the optical anisotropy, carrier concentration, and mobility in transparent conductive polymer poly(3,4-ethylendioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) self-doped PEDOT (S-PEDOT) using spectroscopic ellipsometry Hall measurements van der Pauw configuration. The influence of effective mass on electrical concentrations is demonstrated PEDOT:PSS S-PEDOT thin films with different concentrations. concentration determined by both shows good agreement a collinear...

10.1021/acs.jpcc.3c01497 article EN The Journal of Physical Chemistry C 2023-06-27
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