Wyniki wyszukiwania dla: Kentaro Noda

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Case report: Peristomal pyoderma gangrenosum complicated by rheumatoid arthritis and Behçet's disease successfully treated with baricitinib

Haruyasu Ito, Kentaro Noda, Masayuki Saruta, Daitaro Kurosaka

International Journal of Rheumatic Diseases > 27 > 7 > n/a - n/a

artykuł

Comparison of characteristics of muscle magnetic resonance imaging findings in patients with antineutrophilic cytoplasmic antibody‐associated vasculitis and polyarteritis nodosa

Haruyasu Ito, Ken Yoshida, Takeshi Fukuda, Kentaro Noda, więcej

International Journal of Rheumatic Diseases > 27 > 3 > n/a - n/a

Aim This study aimed to analyze the muscle magnetic resonance imaging (MRI) findings of patients with antineutrophilic cytoplasmic antibody‐associated vasculitis (AAV) and polyarteritis nodosa (PAN) presenting with clinical symptoms in the extremities. Methods Retrospective analysis was conducted on short tau inversion recovery MRI findings, with a focus on intramuscular vessels displaying abnormal...

artykuł

Lung transplantation from donation after circulatory death, evolution, and current status in the United States

Masashi Furukawa, Kentaro Noda, Ernest G. Chan, John P. Ryan, więcej

Clinical Transplantation > 37 > 3 > n/a - n/a

Background The number of lung transplants from donors after circulatory death has increased over the last decade. This study aimed to describe the evolution and outcomes following lung transplantation donation after circulatory death (DCD) and report the practices and outcomes of ex vivo lung perfusion (EVLP) in this donor population. Methods This was a retrospective study using a prospectively...

artykuł

Single‐center experience of ex vivo lung perfusion and subsequent lung transplantation

Kentaro Noda, Ernest G. Chan, Masashi Furukawa, John P. Ryan, więcej

Clinical Transplantation > 37 > 2 > n/a - n/a

Background The safety of lung transplantation using ex vivo lung perfusion (EVLP) has been confirmed in multiple clinical studies; however, limited evidence is currently available regarding the potential effects of EVLP on posttransplant graft complications and survival with mid‐ to long‐term follow‐up. In this study, we reviewed our institutional data to better understand the impact of EVLP. Methods...

artykuł

Lung transplantation for the treatment of irreversible acute respiratory distress syndrome

Takashi Harano, John P. Ryan, Ernest G. Chan, Kentaro Noda, więcej

Clinical Transplantation > 35 > 2 > n/a - n/a

Background Despite advances in critical care for acute respiratory distress syndrome (ARDS), some survivors in the acute phase are unable to wean from extracorporeal membrane oxygenation (ECMO) or mechanical ventilation. To date, little is known regarding whether lung transplantation confers a survival benefit for irreversible ARDS. Methods This retrospective study was conducted using the United...

artykuł

Anti‐PM/Scl antibody‐positive dermatomyositis in a Japanese patient: a case report and review of the literature

Aki Kohara, Koichi Yanaba, Yoshinao Muro, Hideki Ito, więcej

International Journal of Rheumatic Diseases > 20 > 12 > 2186 - 2189

artykuł

Angiogenesis and VEGF-expressing cells are identified predominantly in the fascia rather than in the muscle during the early phase of dermatomyositis

Ken Yoshida, Haruyasu Ito, Kazuhiro Furuya, Taro Ukichi, więcej

Arthritis Research & Therapy > 2017 > 19 > 1 > 1-10

Background We previously demonstrated that fasciitis is a common lesion in dermatomyositis (DM) and that DM-associated fasciitis is detectable, as the result of the increased vascularity in the fascia, by power Doppler ultrasonography. We aimed to investigate whether angiogenesis and vascular endothelial growth factor (VEGF)-expressing cells in the fascia are histologically demonstrated during the...

artykuł

Reply

Ken Yoshida, Kentaro Noda, Taro Ukichi, Kazuhiro Furuya, więcej

Arthritis & Rheumatology > 69 > 11 > 2249 - 2250

rozdział

Cantilever array for measuring traction forces of cells in a confined space

Kayoko Hirayama Shoji, Ken'ei Matsudaira, Takuya Tsukagoshi, Thanh-Vinh Nguyen, więcej

2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS) > 191 - 193

2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)

This paper reports a sensor to directly measure the traction forces generated by migrating cells in a confined space. The sensor consists of an array of miniaturized piezoresistive cantilevers which are surrounded by a pluronic-F127 pattern. The pattern allows the self-alignment and directional migration of the cells to the cantilever array as the adhesion of cells to pluronic-F127 is poor. Our method...

artykuł

Optimal ex vivo lung perfusion techniques with oxygenated perfusate

Kentaro Noda, Shinya Tane, Seok Jin Haam, Awori J. Hayanga, więcej

The Journal of Heart and Lung Transplantation > 2017 > 36 > 4 > 466-474

Accumulating evidence supports an increasing role of ex vivo lung perfusion (EVLP) in clinical lung transplantation. However, EVLP has adverse effects on the quality of lung grafts, which have rarely been discussed. Careful optimization of current EVLP protocols might improve outcomes. This study examined effects of different levels of oxygenation of the perfusate circulated through the lungs during...

artykuł

Brief Report: Power Doppler Ultrasonography for Detection of Increased Vascularity in the Fascia: A Potential Early Diagnostic Tool in Fasciitis of Dermatomyositis

Ken Yoshida, Makiko Nishioka, Satoshi Matsushima, Kensuke Joh, więcej

Arthritis & Rheumatology > 68 > 12 > 2986 - 2991

Objective We previously demonstrated that fasciitis is a common lesion of dermatomyositis (DM) that is detectable early after disease onset by en bloc muscle biopsy combined with magnetic resonance imaging (MRI). Power Doppler ultrasonography (PDUS) is a useful method for detection of inflammation and vascularity in rheumatic diseases. We undertook this study to determine whether fasciitis was detectable...

artykuł

High-sensitivity microelectromechanical systems-based tri-axis force sensor for monitoring cellular traction force

Nguyen Thanh-Vinh, Tomoki Omiya, Takuya Tsukagoshi, Kayoko Hirayama, więcej

IET Micro & Nano Letters > 2016 > 11 > 10 > 563 - 567

A high-sensitivity tri-axis force sensor designed to measure the traction force of a single cell is reported. The developed sensor consists of a micropillar that is supported by a cross-shaped Si structure and a double-layer photoresist cap. The piezoresistors formed on the Si structure allow for the simultaneous measurement of the normal and shear forces acting on the micropillar. Moreover, the cap...

artykuł

Prokineticin 2 antagonist, PKRA7 suppresses arthritis in mice with collagen-induced arthritis

Haruyasu Ito, Kentaro Noda, Ken Yoshida, Kazuhiro Otani, więcej

BMC Musculoskeletal Disorders > 2016 > 17 > 1 > 1-7

Background Prokineticin 2 (PK2) expression is upregulated in mice with collagen-induced arthritis (CIA), an animal model of rheumatoid arthritis. The purpose of our study was to investigate the effects of PK2 inhibition on CIA. Methods PK2, prokineticin receptor (PKR) 1, and PKR2 mRNA transcripts in the joints of CIA mice were measured by real-time PCR on Days 21, 28, and 35 (n = 15/day). Localization...

rozdział

A tactile sensor for simultaneous measurement of applied forces and friction coefficient

Taiyu Okatani, Hidetoshi Takahashi, Kentaro Noda, Tomoyuki Takahata, więcej

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS) > 862 - 865

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS)

This paper reports on a tactile sensor to measure normal force, tangential force and friction coefficient simultaneously. The proposed sensor is composed of three pairs of piezoresistive beams embedded in an elastomer. The normal and tangential forces can be measured by detecting the normal and shear deformations of the elastomer with the piezoresistive beams. The friction coefficient can be measured...

rozdział

Micro pillars with thin hydrophobic layer formed on the side walls to prevent cell protrusion toward side wall

Kentaro Noda, Kayoko Hirayama, Kiyoshi Matsumoto, Isao Shimoyama

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS) > 501 - 504

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS)

The paper reports on micro pillars with thin fluorocarbon layer formed onto their side walls and the surface of the substrate where the pillars are standing. Since the cell cannot adhere to the fluorocarbon layer, the cultured cells will adhere only to the top of the pillars. Therefore, the traction forces of the cells might be measured without considering their adhering positions. We fabricated micro...

rozdział

Measuring the vibration of cells subjected to ultrasound using a MEMS-based force sensor array

Huijun Park, Nguyen Thanh-Vinh, Kayoko Hirayama, Takuya Tsukagoshi, więcej

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS) > 695 - 697

2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS)

This paper reports on a method to measure vibration occurring on the membrane of a mammalian cell which is subjected to ultrasound. The measurement is based on an array of piezoresistive MEMS force sensors. Experimental results with the fabricated sensors showed a change in frequency response to the ultrasound-induced vibration of NIH3T3 cells adhered to the fabricated sensor.

artykuł

Frequency-Tunable Microstrip Antenna With Liquid Actuator Using Gradually Widened Transmission Line

Kentaro Noda, Makoto Ohkado, Binh-Khiem Nguyen, Kiyoshi Matsumoto, więcej

IEEE Antennas and Wireless Propagation Letters > 2015 > 14 > 551 - 555

This letter reports on a mechanically reconfigurable frequency-tunable microstrip antenna that uses a liquid actuator as the dielectric layer to reduce the antenna size compared to the wavelength. By using direct polymer vacuum deposition on a liquid, the dielectric liquid can be encapsulated inside the polymer to form an actuator, which can change the liquid thickness. When the actuator is situated...

rozdział

Sound focusing in liquid using a varifocal acoustic mirror

Ryo Aoki, Nguyen Thanh-Vinh, Kentaro Noda, Tomoyuki Takahata, więcej

2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS) > 925 - 927

2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)

This paper reports a method to focus sound in liquid to a desired point using a PDMS-based varifocal acoustic mirror. We used PDMS-air boundary as a sound reflector to concentrate sound. By adjusting the curvature radius of the acoustic mirror, we could change the position where sound was concentrated. We confirmed that our method was able to improve the output of the acoustic sensor for different...

artykuł

Stretchable tri-axis force sensor using conductive liquid

Kentaro Noda, Kiyoshi Matsumoto, Isao Shimoyama

Sensors & Actuators: A. Physical > 2014 > 215 > Complete > 123-129

This paper reports on a stretchable tri-axial tactile sensor using an electro-conductive liquid encapsulated inside channels composed of an elastomer. The sensor was constructed by integrating two types of sensor units: tri-axial force sensor units composed of 4-capacitors with paired conductive liquid electrodes and stretch sensor units composed of a conductive liquid channel. The capacitances between...

rozdział

Measuring flow velocity of swallowed liquid in the human pharynx by tongue pressure sensor and swallowing sound sensor

Yusuke Takei, Tomonori Kaneko, Kentaro Noda, Kiyoshi Matsumoto, więcej

2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) > 849 - 852

2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)

We measured flow velocity of swallowed liquid passing through pharynx. We put a pressure sensor on a palate to measure tongue pressure when swallowing the liquid. And we put two acoustic sensors on the neck skin in order to measure swallowing sound when liquid passes through the pharynx. From the output of these three sensors, we can know the timing of the liquid passing through each sensor points...

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