Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Koichi Shibata"'
Autor:
Kuniaki Otsuka, Germaine Cornelissen, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Satoshi Furukawa, Hiroshi Ohshima, Chiaki Mukai
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract This study was designed to examine the feasibility of analyzing heart rate variability (HRV) data from repeat-flier astronauts at matching days on two separate missions to assess any effect of repeated missions on brain plasticity and psycho
Externí odkaz:
https://doaj.org/article/660c4152bc4f4b2b829932bee50bd905
Autor:
Kuniaki Otsuka, Germaine Cornelissen, Satoshi Furukawa, Koichi Shibata, Yutaka Kubo, Koh Mizuno, Tatsuya Aiba, Hiroshi Ohshima, Chiaki Mukai
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract The intrinsic cardiovascular regulatory system (β, 0.00013–0.02 Hz) did not adapt to microgravity after a 6-month spaceflight. The infraslow oscillation (ISO, 0.01–0.10 Hz) coordinating brain dynamics via thalamic astrocytes plays a key
Externí odkaz:
https://doaj.org/article/a8f52716d90e44919c2eb26e95a0ddbf
Autor:
Kuniaki Otsuka, Germaine Cornelissen, Satoshi Furukawa, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Hiroshi Ohshima, Chiaki Mukai
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract This study assesses how circadian rhythms of heart rate (HR), HR variability (HRV) and activity change during long-term missions in space and how they relate to sleep quality. Ambulatory 48-h ECG and 96-h actigraphy were performed four times
Externí odkaz:
https://doaj.org/article/875b6252a5c941e9b8ca8224884e5cbd
Autor:
Toshiyuki Ishii, Koichi Shibata, Shinichi Kai, Keiichi Noguchi, Amin Omar Hendawy, Shinobu Fujimura, Kan Sato
Publikováno v:
The Journal of Poultry Science, Vol 56, Iss 3, Pp 204-211 (2019)
Here, we investigated whether the optimal threonine (Thr) to lysine (Lys) ratio in high Lys diet improves the growth performance of modern broiler chickens at finisher period and determined the possible mechanism underlying improvement in the growth
Externí odkaz:
https://doaj.org/article/a642f99554984fceb18642b000d3c347
Autor:
Hironobu Tomita, Koichi Shibata
Publikováno v:
Radiology Research and Practice, Vol 2019 (2019)
Externí odkaz:
https://doaj.org/article/70298c5573754c54929f663bae817824
Autor:
Hironobu Tomita, Koichi Shibata
Publikováno v:
Radiology Research and Practice, Vol 2019 (2019)
Purpose. We sought to examine the possibility of reducing the contrast medium dosage in dual-energy imaging using a saline-mixed injection with a virtual monochromatic energy method of dual-source computed tomography (CT). Methods. An X-ray CT (SOMAT
Externí odkaz:
https://doaj.org/article/cef0451802c44be59a5463ebaaf84ebd
Autor:
Kuniaki Otsuka, Germaine Cornelissen, Satoshi Furukawa, Yutaka Kubo, Mitsutoshi Hayashi, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Hiroshi Ohshima, Chiaki Mukai
Publikováno v:
Heliyon, Vol 2, Iss 12 (2016)
Background: Spaceflight alters human cardiovascular dynamics. The less negative slope of the fractal scaling of heart rate variability (HRV) of astronauts exposed long-term to microgravity reflects cardiovascular deconditioning. We here focus on spec
Externí odkaz:
https://doaj.org/article/11207814ef8944fc920f1cb36a0b37f9
Autor:
Kuniaki Otsuka, Shougo Murakami, Kiyotaka Okajima, Koichi Shibata, Yutaka Kubo, Denis G Gubin, Larry A Beaty, Germaine Cornelissen
Publikováno v:
Clinical Interventions in Aging. 18:755-769
Kuniaki Otsuka,1,2 Shougo Murakami,3 Kiyotaka Okajima,4 Koichi Shibata,1 Yutaka Kubo,5 Denis G Gubin,6â 8 Larry A Beaty,2 Germaine Cornelissen2 1Tokyo Womenâs Medical University, Tokyo, Japan; 2Halberg Chronobiology Center, University of Mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5bcd8ab53c96d15a34872b11601c09a
https://doi.org/10.2147/cia.s398957
https://doi.org/10.2147/cia.s398957
Autor:
Kuniaki Otsuka, Germaine Cornelissen, Satoshi Furukawa, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Hiroshi Ohshima, Chiaki Mukai
Heart rate variability (HRV) reflects brain’s ‘vertical integration’ in association with functions of the default mode network (DMN) and salience network (SN). We investigate the role of 12-h components in HRV endpoints in facilitating adaptati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7df068f87bfb279b59761cb60eea10f3
https://doi.org/10.21203/rs.3.rs-2106983/v1
https://doi.org/10.21203/rs.3.rs-2106983/v1
Autor:
Kuniaki Otsuka, Germaine Cornélissen, Yutaka Kubo, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Satoshi Furukawa, Hiroshi Ohshima, Chiaki Mukai
Repeated long-duration spaceflights of a healthy astronaut, 4 years apart, facilitated microgravity-induced brain-plasticity and psychological-resilience, observed about 20 days after launch (ISS01) during the second mission. Sleep duration lengthene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9afc03b26eab69fdafc84f1650c20103
https://doi.org/10.21203/rs.3.rs-1511292/v1
https://doi.org/10.21203/rs.3.rs-1511292/v1