Youhei Nakamura

ORCID: 0000-0001-8672-7363
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About
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Research Areas
  • Gastric Cancer Management and Outcomes
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Blood Coagulation and Thrombosis Mechanisms
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Hemophilia Treatment and Research
  • Metastasis and carcinoma case studies
  • Cardiac Arrest and Resuscitation
  • Gastrointestinal Tumor Research and Treatment
  • Sepsis Diagnosis and Treatment
  • Trauma and Emergency Care Studies
  • Speech and Audio Processing
  • Gastrointestinal disorders and treatments
  • Viral-associated cancers and disorders
  • Hemodynamic Monitoring and Therapy
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Advanced Adaptive Filtering Techniques
  • Trauma, Hemostasis, Coagulopathy, Resuscitation
  • Traumatic Ocular and Foreign Body Injuries
  • Structural Health Monitoring Techniques
  • Protease and Inhibitor Mechanisms
  • Streptococcal Infections and Treatments
  • Photodynamic Therapy Research Studies
  • Esophageal and GI Pathology
  • Cervical and Thoracic Myelopathy
  • Dermatological and Skeletal Disorders

Osaka University
2015-2024

Japan Organization of Occupational Health and Safety
2014

Fukuoka University
2014

Yamaguchi University
1997-2008

SANE Mental Health Charity
1990

R. M. Bateman Michael D. Sharpe Justin E. Jagger Chiara Ellis Jordi Solé‐Violán and 95 more M. López Rodríguez Estefanía Herrera‐Ramos JA Ruiz-Hernández Luis Borderías Juan Pablo Horcajada N. González-Quevedo Olga Rajas Ma Luisa Briones Felipè Rodríguez de Castro Claudio Gallego Figen Esen Günseli Orhun Perihan Ergin Özcan Evren Şentürk Canan Uğur Yılmaz Nurcan Orhan Nadir Arıcan M. Kaya Melike Küçükerden Murat Giriş Uğur Akcan Sema Bilgiç Gazioğlu Eray Tüzün Reut Riff Oshri Naamani Amos Douvdevani Ryosuke Takegawa Hisao Yoshida Tomoya Hirose Naoki Yamamoto Hideharu Hagiya Masahiro Ojima Yukihiro Akeda Osamu Tasaki Kazunori Tomono Takeshi Shimazu Satoshi Ono Toshio Kubo S Suda Takuya Ueno T. Ikeda Tomoya Hirose Hiroshi Ogura Hiroki Takahashi Masahiro Ojima J. Kang Youhei Nakamura Takashi Kojima Takeshi Shimazu T. Ikeda S Suda Yoshito Izutani Takuya Ueno Satoshi Ono Tadatsugu Taniguchi M. O C. Dinter J. Lotz Beth Eilers C. Wissmann Rex S. Lott Marc Meili Philipp Schüetz Hassan Hawa Moh’d A. Sharshir M. Aburageila Nawal Salahuddin Vasiliki Chantziara Sophia Georgiou Angeliki M. Tsimogianni Panagiotis Alexandropoulos A. Vassi F. Lagiou M. Valta Georgia Micha E. Chinou G. Michaloudis A. Kodaira T. Ikeda Satoshi Ono Takuya Ueno S Suda Yoshito Izutani Hitoshi Imaizumi María Victoria de la Torre-Prados A García-de la Torre Alfredo Enguix-Armada A Puerto-Morlán V. Perez-Valero Ángel García-Alcántara N. Bolton J. Dudziak Samantha Bonney Ascanio Tridente Patrick Née

P001 - Sepsis impairs the capillary response within hypoxic capillaries and decreases erythrocyte oxygen-dependent ATP efflux R. M. Bateman, D. Sharpe, J. E. Jagger, C. G. Ellis P002 Lower serum immunoglobulin G2 level does not predispose to severe flu. Solé-Violán, López-Rodríguez, Herrera-Ramos, Ruíz-Hernández, L. Borderías, Horcajada, N. González-Quevedo, O. Rajas, Briones, F. Rodríguez de Castro, Gallego P003 Brain protective effects of intravenous through inhibition complement...

10.1186/s13054-016-1208-6 article EN cc-by Critical Care 2016-04-01

Vertebral artery injury associated with blunt traumatic cervical spine sometimes causes severe cerebellar and brain stem infarction. No treatment guidelines for vertebral aimed at preventing stroke have been decided. We conducted endovascular embolization in patients up to Denver grade IV cerebrovascular complicated by unstable before open reduction fixation surgery. The purpose of this study was validate the clinical course especially our hospital.Participants comprised diagnosed as having...

10.1002/ams2.670 article EN cc-by-nc Acute Medicine & Surgery 2021-01-01

Abstract Aim This study investigated whether contrast extravasation on computed tomography (CT) angiography in patients with traumatic brain injury (TBI) is associated death or surgical procedures. Methods Patients over 18 years old, directly brought by ambulance an isolated head and confirmed to have acute intracranial hemorrhage a CT scan upon admission between 2010 2020, were included. The primary outcome was mortality, the secondary neurosurgical procedures performed from discharge...

10.1002/ams2.931 article EN cc-by-nc Acute Medicine & Surgery 2024-01-01

The long-term outcomes of patients with disorders consciousness after traumatic brain injury (TBI) is unclear. We investigated the over 20 years in who were a persistent vegetative state (VS). conducted retrospective cohort study using review medical records and collected data by telephone written interviews their families. included treated for TBI at our hospital, between October 1996 January 2003 VS, defined as Disability Rating Scale (DRS) score ≥22 1 month TBI. DRS was administered...

10.1089/neur.2023.0080 article EN cc-by Neurotrauma Reports 2023-11-01

Extravascular leakage on computed tomography (CT) angiography in patients with traumatic brain injury (TBI) is associated hematoma expansion, functional prognosis, subsequent surgery, and death. Fresh frozen plasma (FFP) administration often necessary to treat coagulation disorders TBI. This study aimed determine the relationship between presence of extravascular contrast-enhanced head CT, fibrinogen level at admission, FFP The medical records TBI ≥18 years age referred our hospital January...

10.1089/neur.2022.0054 article EN cc-by Neurotrauma Reports 2023-01-01

Therapeutic efficacy of endoscopic photodynamic therapy (PDT) for advanced gastric cancer is limited. Recent animal studies have clarified the very important role host immune cells in PDT. We expected a potential cooperative effect PDT and immunotherapy, developed immunotherapycombined (I-PDT) cancer.We applied I-PDT two elderly patients with complicated (92- 89-yr-old males). Tumor bleeding prevented them from leading an ordinary home life. Initial simple was not effective. Patients...

10.1385/ijgc:32:2-3:139 article EN International Journal of Gastrointestinal Cancer 2002-01-01

C1 inhibitor (C1-INH), which belongs to the superfamily of serine protease inhibitors, regulates complement system and also plasma kallikrein-kinin, fibrinolytic, coagulation systems. The biologic activities C1-INH can be divided into regulation vascular permeability anti-inflammatory functions. objective this study was clarify serial change in patients with sepsis evaluate relationship shock severity. This a single-center, prospective, observational study. We serially examined activity...

10.1186/s40560-018-0309-5 article EN cc-by Journal of Intensive Care 2018-07-04

Introduction: During the course of systemic inflammation, most immune cell types get activated to a certain degree as part of, or contributing to, cascade physiopathological events.Whether for some cells, classically phagocytes innate system, it is clear that direct sensing pathogen-associated molecular patterns leads activation initiating picture not so natural killer (NK) cells.While NK cells have been shown express toll-like receptors (TLR), role these on NKs during inflammation has...

10.1186/cc14028 article EN cc-by Critical Care 2014-12-03

Abstract Background We report a case of zone II penetrating neck trauma with active bleeding in which endovascular treatment was performed prior to exploration identify and control the point. Case Presentation A man his 50s presented our emergency department hemorrhagic shock stemming from knife wound injury right side neck. He massively oral cavity. Cervical angiography showed external carotid artery intimal internal artery. Balloon occlusion at common origin distal injured controlled...

10.1002/ams2.70022 article EN cc-by-nc Acute Medicine & Surgery 2024-01-01

This paper proposes an adaptive notch filter that automatically adjusts the frequency and gain, where they are null depth of null, respectively. The proposed consists inverse a linear prediction filter, gives appropriate gain which can eliminate sinusoidal noise extract only wide-band signal even if share same frequency. We compare capability with traditional methods. Simulation results show system improves SNR in comparison to conventional

10.1002/ecj.11935 article EN Electronics and Communications in Japan 2017-01-09

C1 inhibitor (C1INH), belonging to the superfamily of serine protease inhibitors, regulates not only complement system, but also plasma kallikrein-kinin fibrinolytic system and coagulation system. The biologic activities C1INH can be divided into regulation vascular permeability anti-inflammatory functions. In recent years, hereditary angioedema (HAE), caused by an inherited deficiency C1INH, has been focused. During HAE attacks, was markedly increased, which leads angioedema. sepsis,...

10.1186/cc14114 article EN cc-by Critical Care 2015-03-16

This paper proposes an adaptive notch filter which automatically adjusts the frequency and gain, where they are null depth of null, respectively. The proposed consists inverse a linear prediction filter, gives appropriate gain can eliminate sinusoidal noise extract only wide-band signal even if share same frequency. We compare capability with traditional methods. Simulation results show that method improves SNR in comparison to conventional

10.1541/ieejeiss.136.108 article EN IEEJ Transactions on Electronics Information and Systems 2016-01-01
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