Faculty Profiles - NAGAYAMA Katsuya

Papers - NAGAYAMA Katsuya

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3D Numerical Simulation of Hair Formation Process Using a Particle Model Reviewed

Katsuya Nagayama, Shogo Matsuoka, Naoko Morisaki, Hiroyuki Taguchi

Open Journal of Regenerative Medicine 5page 2015.02

Quantification Method of Vascular Conditions by Capillaroscopy Reviewed

Katsuya Nagayama, Ichiro Miura

Advanced Biomedical Engineering 4 55 - 59 2015.02

毛細血管の画像解析による血管状態の評価(研究発表,第38回生命情報科学シンポジウム)

永山勝也, 三浦一郎, 河越景史

国際生命情報科学会誌 32 ( 2 ) 199 - 204 2014.01

Nailfold microcapillary findings reveal early stage of congestion of right ventricle of the heart.

Miura Ichiro, Matsuo Masato, Konta Tsuyoshi, Nagayama Katsuya, Miyazaki Masami

Microvascular Reviews and Communications ( 日本微小循環学会 ) 7 ( 1 ) 39a - 39a 2014.01

Language：Japanese Publishing type：Research paper (other academic)

Back groud and aims: Nailfold capillaroscopy is usefull for determine the state of peripheral microvessels in various disease, especially rheumatic disease. While capillary loss is well known in essential hypertension as findings of the cardiovascular disease, clinical significance of horizontal capillaries is not well known. We have examined the relationship between serum concentration of brain natriuretic peptide (BNP) and horizontal vessels in nailfold capillary microscopy. Method: The study examined 78 patients 60 years of age or older. Serum BNP concentration was measured for all cases, and we examined the statistical significant difference of the cases with and without findings of transverse blood vessels by the nailfold capillary microscopy. Result: Serum BNP concentration increased in many cases with a horizontal vessels and significant difference was observed statistically. BNP concentration was enough to slightly more than normal values. Discussion: Using the nailfold capillary microscopy, deformation of the vessel in the vertical direction is most notable. On the other hand, the meaning of the transverse blood vessels has received less attention. Evaluated the observation of blood flow of many finger tips, it was considered that the blood flow in the horizontal direction is venous blood flow. We estimated that horizontal blood flow means the decrease of venous return, namely expresses the early state of congestion of the right ventricle of the heart. Since the BNP rise and this finding had a significant difference statistically, we considered nailfold microcapillary findings can reveal early stage of congestion of right ventricle of the heart.

DOI： 10.14532/mvrc.7.39a

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/130004678495

304 Numerical simulation of Liver Regeneration : study on micro area

Oshiumi Yuki, Nagayama Katsuya, Shirakigawa Nana, Ijima Hiroyuki

The Proceedings of Conference of Kyushu Branch ( The Japan Society of Mechanical Engineers ) 2014 ( 0 ) _304 - 1_-_304-2_ 2014.01

303 Particle Simulation on Alveolar Bone Regeneration and Angiogenesis : Micro Bone Model

KISU Kenta, NAGAYAMA Katsuya, MATSUO Masato

The Proceedings of Conference of Kyushu Branch ( The Japan Society of Mechanical Engineers ) 2014 ( 0 ) _303 - 1_-_303-2_ 2014.01

Particle Simulation on alveolar bone regeneration and angiogenesis-Immature Bone Formation- Reviewed

Katsuya NAGAYAMA, Kenta KISU, Masato MATSUO

BMCE 2013 6page 2013.12

Particle Simulation on alveolar bone regeneration and angiogenesis-Study on Stress Model- Reviewed

Kenta KISU, Katsuya NAGAYAMA, Masato MATSUO

CACM 2013 6page 2013.11

An epidermal turnover model predicts uneven skin tone with aging Reviewed

Yasuko Amano, T Uehara, M Tanahashi, K Nagayama

ICBS(World congress on the International Society for Biophysics and Imaging of the Skin 40 - 40 2012.11

3D numerical simulation of blood vessel network on angiogenesis in cancer using a particle model Reviewed

60 353 - 357 2012.07

3D Particle Simulation on Cancer Growth and Angiogenesis: Using 2D Blood Vessel Image Reviewed

Katsuya NAGAYAMA, Yuki OSHIUMI, Masayuki YUMITA

Spring World Congress on Engineering and Technology (SCET2012) 352 - 355 2012.05

3D Numerical Analysis of Blood vessel Network on Angiogenesis in Cancer Using a Particle Model Reviewed

Katsuya Nagayama,Hiroki TOMITA,Ichiro MIURA

Theoretical and Applied Mechanics Japan 60 353 - 357 2012.02

Particle simulation of slurry flow between a wafer and pad in CMP Reviewed

Hiroki Sato, Kengo Matsuoka,Katsuya Nagayama

Asian Symposium for Precision Engineering and Nanotechnology 2011 4page CD-ROM 2011.11

THREE DIMENSIONAL PARTICLE SIMULATIONS ON THE DEFORMATION OF MICRO BLOOD VESSEL WITH RED BLOOD CELLS Reviewed

Yusuke Tsuji,Katsuya NAGAYAMA, Ichiro MIURA

WACBE (World Congress on Bioengineering) 2011 2page CD-ROM 2011.08

3D Numerical Simulation of Blood Vessel Network Structure on Angiogenesis in Cancer Reviewed

Hiroki TOMITA,Katsuya NAGAYAMA, Ichiro MIURA

WACBE (World Congress on Bioengineering) 2011 2page CD-ROM 2011.08

3D Numerical Simulation of Growing Cancer and Blood Vessel Network Reviewed

K. Nagayama,H. Tomita

Proceeding Int. Conf. on Bio-fabrication ( A131 ) 57 - 57 2010.10

3D Particle Simulation on Growing Cancer- Nutrition effect on Tumor Growth and Angiogenesis - Reviewed

Katsuya Nagayama, Hiroki Tomita, Ichiro Miura

Proceeding Int. Conf. on Bio-fabrication 86 - 86 2010.10

Numerical analysis on angiogenesis in cancer using a particle model Reviewed

58 321 - 324 2010.09

Numerical Analysis on Angiogenesis in Growing Cancer Using a Particle Model Reviewed

K. Nagayama,H. Tomita,I. Miura

WCB(World congress of Biomechanics) 2010, IFMBE Proceedings 31,www.springerlink.com 31 1491 - 1494 2010.07

石英ガラス研磨におけるスラリー輸送解析 Reviewed

今城真,永山勝也,木村景一,　橋山雄一

精密工学会誌 ( 904 ) 2010.04

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Papers - NAGAYAMA Katsuya