Toshihiro Yamada

ORCID: 0009-0003-4235-2565
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About
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Research Areas
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Parathyroid Disorders and Treatments
  • Cholesterol and Lipid Metabolism
  • Cardiovascular Function and Risk Factors
  • Drug Transport and Resistance Mechanisms
  • Adipose Tissue and Metabolism
  • S100 Proteins and Annexins
  • Protease and Inhibitor Mechanisms
  • Cancer, Lipids, and Metabolism
  • Urticaria and Related Conditions
  • Diet and metabolism studies
  • Mitochondrial Function and Pathology
  • Liver Diseases and Immunity
  • Autoimmune Bullous Skin Diseases
  • Hormonal Regulation and Hypertension
  • Macrophage Migration Inhibitory Factor
  • Peptidase Inhibition and Analysis
  • Cardiac, Anesthesia and Surgical Outcomes
  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Venous Thromboembolism Diagnosis and Management
  • Blood Coagulation and Thrombosis Mechanisms
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Neuroendocrine Tumor Research Advances
  • Cardiomyopathy and Myosin Studies
  • Clusterin in disease pathology

Kumamoto University
2016-2024

Kyushu University
2024

Matsumoto University
2023

Saiseikai Kumamoto Hospital
2022

Kumamoto Medical Center
2020

Jichi Medical University
2003-2015

Shizuoka Institute of Science and Technology
2014

Kagawa University
2008

Osaka International Cancer Institute
2006

Shizuoka General Hospital
2000-2004

Sirt (Sirtuin) 7, the most recently identified mammalian sirtuin, has been shown to contribute appropriate wound healing processes after acute cardiovascular insult. However, its role in development of cardiac remodeling pressure overload is unclear. Cardiomyocyte-specific Sirt7-knockout and control mice were subjected induced by transverse aortic constriction. Cardiac hypertrophy functions then examined these mice. Sirt7 protein expression was increased myocardial tissue overload....

10.1161/hypertensionaha.119.13357 article EN Hypertension 2019-11-18

S100 protein A8 and A9 naturally form a stable heterocomplex. Recently, we have proved that S100A9 overexpression in various adenocarcinomas is associated with poor tumor differentiation. In this study, examined the relationship between expression of each pathological parameters reflect aggressiveness carcinoma, invasive ductal carcinoma (IDC) breast. Serial paraffin-embedded tissue sections from 101 IDC cases were immunostained respective monoclonal antibodies, results as follows: 1) A...

10.2174/156800908784533445 article EN Current Cancer Drug Targets 2008-06-01

Abstract Aims The focus on wild‐type transthyretin amyloid cardiomyopathy (ATTRwt‐CM) is increasing because of novel treatment options. There currently no report a large number Japanese patients with ATTRwt‐CM. study aimed to examine the characteristics and prognosis ATTRwt‐CM in Japan. Methods results Consecutive (78.5 ± 6.4 years old at diagnosis) diagnosed Kumamoto University Hospital between December 2002 2019 were retrospectively reviewed. Data, including demographic characteristics,...

10.1002/ehf2.12884 article EN cc-by-nc ESC Heart Failure 2020-07-16

We characterized a microbial strain that was isolated from hot spring at geothermal area in Hakone, Japan. This isolate, whose lobed-shaped cells were about 1.0 μ diameter, facultative chemolithoautotroph required aerobic conditions for growth. The optimum pH 3.0 (pH range, to 4.0), and the temperature 70°C (temperature 50 80°C). Lithotrophically, this grew on elemental sulfur reduced compounds. G+C content of genomic DNA 38.4 mol%. organism contained calditoglycerocaldarchaeol, which is...

10.1099/00207713-46-2-377 article EN International Journal of Systematic Bacteriology 1996-04-01

Influenza virus is rich in variation and mutations. It would be very convenient for detection isolation to histochemically detect viral infection regardless of Here, we established a histochemical imaging assay influenza sialidase activity living cells by using new fluorescent substrate, 2-(benzothiazol-2-yl)-4-bromophenyl 5-acetamido-3,5-dideoxy-α-D-glycero-D-galacto-2-nonulopyranosidonic acid (BTP3-Neu5Ac). The BTP3-Neu5Ac visualized virus-infected hosts subtypes. neuraminidase-expressed...

10.1038/srep04877 article EN cc-by-nc-sa Scientific Reports 2014-05-02

Background Cardiac fibrosis plays a crucial role in the pathogenesis of dilated cardiomyopathy (DCM). HE4 (human epididymis protein 4) is secretory expressed activated fibroblasts that exacerbates tissue fibrosis. In present study, we investigated clinical utility measurement patients with DCM and its pathophysiological preclinical experiments vivo vitro. Methods Results We measured serum levels 87 DCM. Endomyocardial biopsy severe only high group ( P <0.0001). Echocardiography showed...

10.1161/jaha.120.021069 article EN cc-by-nc-nd Journal of the American Heart Association 2021-07-29

Abstract Aims This study was performed to investigate whether left atrial (LA) strain by echocardiography provides prognostic information in patients with wild‐type transthyretin amyloid cardiomyopathy (ATTRwt‐CM). Methods and results Among 129 who were diagnosed ATTRwt‐CM at Kumamoto University Hospital from December 2002 2019, 113 had enough for two‐dimensional speckle tracking enrolled this study. During a median follow‐up of 668 days, 28 cardiovascular deaths occurred. Compared the...

10.1002/ehf2.13621 article EN ESC Heart Failure 2021-09-28

It has been reported that a staging system combining N-terminal pro-B-type natriuretic peptide and high-sensitivity troponin T (hs-cTnT) or estimated glomerular filtration rate (eGFR) is useful in patients with wild-type transthyretin amyloid cardiomyopathy (ATTRwt-CM). However, these studies were mainly conducted Western countries, their usefulness for the Japanese population unclear. We examined validated using hs-cTnT, eGFR, B-type (BNP) ATTRwt-CM.We retrospectively evaluated 176...

10.1002/ehf2.13847 article EN cc-by-nc ESC Heart Failure 2022-02-22

Krill, which morphologically resembles small shrimp, represents ocean crustaceans and has been used for human consumption in Japan some other countries. The major allergen reported to be tropomyosin, but the allergenicity of krill tropomyosin remains uncertain.Amino acid sequences two species (Euphausia superba E. pacifica) were deduced. Recombinant tropomyosins produced Escherichia coli using a pCold IV vector system, cross-reactivity shrimp allergy-related IgE recombinant several animal...

10.1159/000109286 article EN International Archives of Allergy and Immunology 2007-10-02

β-Blocker (BB) use is a mainstay for the treatment of heart failure (HF) with reduced ejection fraction (HFrEF), whereas its efficacy preserved (HFpEF) remains controversial. Women outnumber men in HFpEF, women HFrEF. Plasma B-type natriuretic peptide (BNP) established as biomarker HF. We examined whether BB associated plasma BNP levels differently and HFpEF. The study subjects comprised 721 patients HFpEF [left ventricular (LVEF) ≥ 50%] (184 men, mean age 78.2 ± 9.2 yr 537 women, 83.1 8.8...

10.1152/ajpheart.00029.2022 article EN AJP Heart and Circulatory Physiology 2022-06-17

In an effort to develop new types of antiulcer agents, a series novel 3(2H)-pyridazinone derivatives and related analogues was synthesized. Substituted 3(2H)-pyridazinones their 4,5-dihydro were alkylated by omega-haloalkyl cyanides at the N-2 position under phase-transfer catalytic reaction, nitrile group converted thio amide treatment with hydrogen sulfide alone or appropriate primary secondary amines. Various substituents introduced on nitrogen amide, carbon in side chains, ring. The...

10.1021/jm00350a018 article EN Journal of Medicinal Chemistry 1982-08-01

Coronary plaques in patients with coronary vasospastic angina have been characterized by diffuse intima-media thickening homogeneous fibrous tissue, without confluent necrotic tissue. However, vasospasm can trigger thrombosis, and may play an important role the pathogenesis of acute syndromes, though precise morphological mechanisms underlying this process remain unclear.A 43-year-old man a history multivessel had treated long-acting diltiazem fluvastatin since 2004. Eleven years later,...

10.1186/s12872-016-0408-y article EN cc-by BMC Cardiovascular Disorders 2016-11-24

An aqueous two-phase partitioning study of partially purified nuclear thyroid hormone receptor from rat liver was performed. Stability 3,5,3'-tri-iodo-L-thyronine (T3)-receptor complex and T3-binding activity in the presence dextran or polyethylene glycol were assessed order to determine amount occupied unoccupied receptors each phase. Partition coefficients calculated as ratio concentration upper glycol-rich phase H2O that lower dextran-rich H2O. The partition coefficient a sensitive...

10.1677/joe.0.1190431 article EN Journal of Endocrinology 1988-12-01
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