Presentation 2017-11-09
On the effect of noise on a mathematical model of the pancreatic beta cell
Tomoyoshi Kojo, Hiroyasu Ando, Kantaro Fujiwara, Masashi Yoshida, Masafumi Kakei,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The membrane potential of pancreatic beta cells changes its value in accordance with insulin secretion. In normal beta cells, the change of membrane potential shows periodic bursting, while the bursting of cells in diabetes patients is not periodic, namely the insulin secretion is disordered. In this study, the dynamics of the membrane potential is reproduced by numerical simulation of a mathematical model, and the effect of noise on the model is investigated. As a result of the simulation, we confirm that the number of spikes which corresponds to insulin secretion increases due to noise. We also confirm that the stronger the noise amplitude is, the more the number of spikes increases. Furthermore, the number of spikes more increases for the parameters of the model in which the bursting is not periodic than for that of periodic bursting. This result implies that noise stimulation can promote the amount of insulin secretion for the disordered beta cell compared with the normal cell. Thus, the noisy stimulation would be useful for the remedy for diabetes.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Pancreatic beta cell,Insulin secretionBurstingNoise
Paper # CCS2017-25
Date of Issue 2017-11-02 (CCS)

Conference Information
Committee CCS
Conference Date 2017/11/9(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Osaka Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Naoki Wakamiya(Osaka Univ.)
Vice Chair Mikio Hasegawa(Tokyo Univ. of Science) / Makoto Naruse(NICT)
Secretary Mikio Hasegawa(Osaka Univ.) / Makoto Naruse(Tokyo City Univ.)
Assistant Chisa Takano(Hirishima City Univ.) / Takashi Shimada(Univ. of Tokyo) / Tomoya Suzuki(Ibaraki Univ.) / Ryo Takahashi(AUT)

Paper Information
Registration To Technical Committee on Complex Communication Sciences
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On the effect of noise on a mathematical model of the pancreatic beta cell
Sub Title (in English)
Keyword(1) Pancreatic beta cell,Insulin secretionBurstingNoise
1st Author's Name Tomoyoshi Kojo
1st Author's Affiliation University of Tsukuba(Univ. of Tsukuba)
2nd Author's Name Hiroyasu Ando
2nd Author's Affiliation University of Tsukuba(Univ. of Tsukuba)
3rd Author's Name Kantaro Fujiwara
3rd Author's Affiliation Tokyo University of Science(Tokyo Univ. of Sci.)
4th Author's Name Masashi Yoshida
4th Author's Affiliation Jichi Medical University Saitama Medical Center(Jichi Med. Univ.)
5th Author's Name Masafumi Kakei
5th Author's Affiliation Jichi Medical University Saitama Medical Center(Jichi Med. Univ.)
Date 2017-11-09
Paper # CCS2017-25
Volume (vol) vol.117
Number (no) CCS-288
Page pp.pp.25-28(CCS),
#Pages 4
Date of Issue 2017-11-02 (CCS)