著者

Tomoko Kobayashi Mika Kobayashi Naoko Minegishi Masahiro Kikuya Taku Obara Mami Ishikuro Chizuru Yamanaka Tomomi Onuma Keiko Murakami Fumihiko Ueno Aoi Noda Akira Uruno Junichi Sugawara Kichiya Suzuki Eiichi N. Kodama Yohei Hamanaka Naho Tsuchiya Mana Kogure Naoki Nakaya Makiko Taira Mika Sakurai-Yageta Toru Tamahara Junko Kawashima Maki Goto Akihito Otsuki Ritsuko Shimizu Soichi Ogishima Hiroaki Hashizume Fuji Nagami Tomohiro Nakamura Atsushi Hozawa Tadao Kobayashi Nobuo Fuse Shinichi Kuriyama Shigeo Kure Masayuki Yamamoto

出版者

Tohoku University Medical Press

雑誌

The Tohoku Journal of Experimental Medicine (ISSN:00408727)

巻号頁・発行日

pp.2022.J103, (Released:2022-12-01)

被引用文献数

1

著者

KAZUYUKI SOGAWA MIKA KOBAYASHI JUN SUZUKI AKIHIRO SANDA YOSHIO KODERA MASAFUMI FUKUYAMA

出版者

The Society for Antibacterial and Antifungal Agents, Japan

雑誌

Biocontrol Science (ISSN:13424815)

巻号頁・発行日

vol.23, no.2, pp.77-80, 2018 (Released:2018-06-16)

参考文献数

19

被引用文献数

2 4

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Group A streptococcus is a bacterium that resides in the throat and skin and causes respiratory infection and occasionally glomerulonephritis and rheumatic fever. Streptolysin O (SLO) produced by Streptococcus pyogenes (S. pyogenes) binds to the cell membrane, particularly to that of white and red blood cells, and is toxic to the cells and tissue. In this study, we evaluated the inhibitory activity of water-soluble polyphenols in olives (Olea europaea) against SLO-induced hemolysis. Hydroxytyrosol inhibited SLO-induced hemolytic activity, and the amount required for 50% inhibition of hemolysis was 1.30 µg. These findings suggest that the water-soluble polyphenols contained in olives have inhibitory activity against SLO-induced hemolysis.

著者

小林 美香 コバヤシ ミカ Mika Kobayashi

雑誌

英米文學 = English & American literature

巻号頁・発行日

vol.75, pp.103-132, 2015

著者

Mika Kobayashi Kenji Inoue Eiji Warabi Takashi Minami Tatsuhiko Kodama

出版者

一般社団法人 日本動脈硬化学会

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

vol.12, no.3, pp.138-142, 2005 (Released:2005-07-13)

参考文献数

12

被引用文献数

69 195

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In the study of vascular biology, analyses of endothelial cells (EC) and smooth muscle cells (SMC) are very important. The mouse is a critical model for research, however, the isolation of primary EC from murine aorta is considered difficult. Previously reported procedures for the isolation of EC have required magnetic beads, or Fluorescence Activated Cell Sorting (FACS) to purify the cells. In addition, these procedures were applied to the heart, eyeball, or lung, not the aorta. Therefore we developed a simple method of isolating EC or SMC from the murine aorta without the need for any special equipment. To verify the purity of the cell culture, we performed both an immunofluorescence study and a DNA microarray analysis. The immunofluorescence study demonstrated specific expression of PECAM-1 in isolated EC cultures. In contrast, the isolated SMC didn’t exhibit PECAM-1, but rather, smooth muscle actin. The DNA microarray analysis demonstrated the expression of EC (16 genes) or SMC (5 genes) specific genes in each cell. This is due to the fact that pure EC or SMC can be isolated from the aorta, without the use of any special equipment. These results suggest that this method should be particularly useful for vascular biological research.