Katsunori Miyahara

ORCID: 0009-0003-9742-1185
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Research Areas
  • Toxoplasma gondii Research Studies
  • Immunotherapy and Immune Responses
  • Cardiac Valve Diseases and Treatments
  • Cardiac, Anesthesia and Surgical Outcomes
  • Cardiac Imaging and Diagnostics
  • Advanced MRI Techniques and Applications
  • RNA Interference and Gene Delivery
  • Cardiovascular Issues in Pregnancy
  • Cardiac Structural Anomalies and Repair
  • Immune Cell Function and Interaction
  • MRI in cancer diagnosis
  • Intensive Care Unit Cognitive Disorders
  • Face recognition and analysis
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Pelvic and Acetabular Injuries
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Cleft Lip and Palate Research
  • Tunneling and Rock Mechanics
  • Neurogenetic and Muscular Disorders Research
  • Optical Coherence Tomography Applications
  • Environmental Toxicology and Ecotoxicology
  • Cardiomyopathy and Myosin Studies
  • Renal and related cancers
  • Occupational and environmental lung diseases
  • Muscle Physiology and Disorders

Kokura Memorial Hospital
2024-2025

Kwansei Gakuin University
2024

Tsuyama Chuo Hospital
2024

Obihiro University of Agriculture and Veterinary Medicine
1992-2010

Gifu University
2010

The assisted reproductive techniques (ARTs) such as in vitro fertilization, embryo transfer, and cryopreservation of gametes have contributed considerably to the development biomedical sciences addition improving infertility treatments humans well breeding domestic animals. However, ARTs used canine species strictly limited utility when compared with other mammalian species, including humans. Although successful somatic cell cloning has been reported, artificial insemination by frozen semen...

10.1095/biolreprod.110.087312 article EN Biology of Reproduction 2010-10-06

Type I variant Kounis syndrome is characterized by coronary spasm following an allergic or anaphylactic reaction. Coronary also recognized as a contributing factor in spontaneous artery dissection (SCAD).

10.1093/ehjcr/ytae288 article EN cc-by-nc European Heart Journal - Case Reports 2024-06-01

The Direct Oral Anticoagulant (DOAC) Score can predict bleeding risk in patients with atrial fibrillation taking DOACs; however, it lacks external validation. Therefore, this study aimed to assess the association between DOAC and events who underwent transcatheter aortic valve replacement.

10.1161/jaha.124.036417 article EN cc-by-nc-nd Journal of the American Heart Association 2024-11-07

Growth of the tumor autoinduced by 20-methylcholanthrene (MC) in rats was inhibited after administration Toxoplasma lysate antigen (TLA). The antitumor activity TLA most obvious early stage tumoral growth. When administered to before appearance tumor, formation delayed slightly. Histopathological studies revealed dense growths spindle cells untreated control rat, while enlarged central necrosis with infiltration lymphocytes and neutrophils apparent TLA-treated rats. According...

10.1292/jvms.54.221 article EN Journal of Veterinary Medical Science 1992-01-01

This study was designed to demonstrate the broad utility of contrast-enhanced magnetic resonance imaging (MRI) for diagnosis carcinoma. Twenty-six New Zealand White rabbits either sex (1.7-3.4 kg) were used investigation. VX2 carcinoma (squamous cell carcinoma) implanted in brain, lung, ovary, bone or muscle rabbits. Contrast agent, Gadodiamide Injection, administered intravenously at a dose 0.1 mmol/kg. MR images obtained by 1.5 T, 2.0 T field strength super-conductive MRI unit. The...

10.1292/jvms.58.389 article EN Journal of Veterinary Medical Science 1996-01-01

Therapeutic effects of Toxoplasma lysate antigen (TLA) were studied in mice bearing the tumor second passage 20-methylcholanthrene (MC)-induced cells. Intramuscular administration TLA 7 days after tumor-cell inoculation caused apparent inhibition growth on day 14. The treatment facilitated therapeutic effects. Intravenous transfer spleen cells prepared from TLA-sensitized into tumor-bearing also represented inhibitory Prominent seen when transferred 5 sensitization donor animals. absent...

10.1292/jvms.54.7 article EN Journal of Veterinary Medical Science 1992-01-01

Abstract Background Optical coherence tomography (OCT) can be used to characterize the details of calcified plaques because it allows high-resolution evaluation coronary plaques, thrombi, and calcium. Case summary A 72-year-old man on haemodialysis who had stenosis with a severe lesion at left anterior descending artery underwent percutaneous intervention. Pre-intervention OCT imaging identified nodular calcification (NC) that protruded into lumen artery. To treat this lesion, we performed...

10.1093/ehjcr/ytae095 article EN cc-by-nc European Heart Journal - Case Reports 2024-02-19

Objective: The repeatability of transcatheter aortic valve implantation (TAVI) is an important issue for younger patients or with early structural deterioration (SVD) concerns.

10.33290/jtvt.hdi.24-0006 article EN Journal of Transcatheter Valve Therapies 2024-01-01

Cognitive impairment assessed using the Mini-Mental Status Examination (MMSE) is associated with short-term mortality after transcatheter aortic valve implantation (TAVI). We long-term prognostic impact of cognitive in patients severe stenosis post-TAVI.

10.1253/circrep.cr-24-0078 article EN Circulation Reports 2024-08-05

Abstract Background Spontaneous coronary artery dissection (SCAD) is an uncommon cause of acute syndrome (ACS). Various factors predispose individuals to SCAD, including vasospasm, which has been identified in some studies as a related factor. Case summary We present series three cases ACS attributed SCAD. Two involved early de novo recurrence potentially spasm, and one case iatrogenic during spasm provocation test. Discussion High rates SCAD within 30 days the initial event have observed,...

10.1093/ehjcr/ytae598 article EN cc-by-nc European Heart Journal - Case Reports 2024-11-01

The present study was designed to confirm the usefulness of contrast-enhanced magnetic resonance imaging (MRI) in diagnosing strokes stroke-prone spontaneously hypertensive rats (SHRSP) and middle cerebral artery (MCA) occlusion, hepatocellular carcinoma hydronephrosis each experimental rat model. Male Sprague-Dawley (250-500 g), male SHRSP (ca. 250 g) F344 300 were used for investigation. Gadodiamide injection (Omniscan, Daiichi Pharmaceutical Co., Ltd. Nycomed AS, Norway) administered...

10.1292/jvms.58.291 article EN Journal of Veterinary Medical Science 1996-01-01

Spleen cells from Toxoplasma lysate antigen (TLA)-sensitized BALB/c mice showed the strong cytotoxic activity against both natural killer (NK)-sensitive (YAC-1 and RL♂-1) NK-insensitive (P-815), when incubated with TLA or recombinant human IL-2 (rhIL-2). The increment of concentration in culture medium increased activity. Treatment effector cells; spleen TLA-sensitized TLA, anti-asialo GM1 anti-Thy-1 plus complement inhibited cells, whereas treatment anti-mouse Lyt-2.2 serum had no effect on...

10.1292/jvms.54.87 article EN Journal of Veterinary Medical Science 1992-01-01

In order to identify mechanisms responsible for the anti-tumor effects of Toxoplasma lysate antigen (TLA), we used an in vitro 51Cr release assay study functional properties plastic-adherent cells during induction splenic cytotoxic activity by TLA. Cytotoxic non-adherent was measured all experiments after a 6 days incubation. Induction TLA required presence spleen cells. contrast, rhIL-2 alone able induce transformation from Contact between adherent and necessary successful Treatment with...

10.1292/jvms.54.629 article EN Journal of Veterinary Medical Science 1992-01-01
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