Improvements in in vitro spermatogenesis: oxygen concentration, antioxidants, tissue-form design, and space control

Autor: Takehiko OGAWA, Takafumi MATSUMURA, Tatsuma YAO, Hiroshi KIMURA, Kiyoshi HASHIMOTO, Yu ISHIKAWA-YAMAUCHI, Takuya SATO

Publikováno v: The Journal of Reproduction and Development, Vol 70, Iss 1, Pp 1-9 (2023)

Incorporation of bovine serum-derived albumin formulation (AlbuMAX) into a basic culture medium, MEMα, enables the completion of in vitro spermatogenesis through testicular tissue culture in mice. However, this medium was not effective in other anim

Externí odkaz: https://doaj.org/article/3934235b85474ecd9faf744d9bf2c0a3

Large-scale animal model study uncovers altered brain pH and lactate levels as a transdiagnostic endophenotype of neuropsychiatric disorders involving cognitive impairment

Autor: Hideo Hagihara, Hirotaka Shoji, Satoko Hattori, Giovanni Sala, Yoshihiro Takamiya, Mika Tanaka, Masafumi Ihara, Mihiro Shibutani, Izuho Hatada, Kei Hori, Mikio Hoshino, Akito Nakao, Yasuo Mori, Shigeo Okabe, Masayuki Matsushita, Anja Urbach, Yuta Katayama, Akinobu Matsumoto, Keiichi I Nakayama, Shota Katori, Takuya Sato, Takuji Iwasato, Haruko Nakamura, Yoshio Goshima, Matthieu Raveau, Tetsuya Tatsukawa, Kazuhiro Yamakawa, Noriko Takahashi, Haruo Kasai, Johji Inazawa, Ikuo Nobuhisa, Tetsushi Kagawa, Tetsuya Taga, Mohamed Darwish, Hirofumi Nishizono, Keizo Takao, Kiran Sapkota, Kazutoshi Nakazawa, Tsuyoshi Takagi, Haruki Fujisawa, Yoshihisa Sugimura, Kyosuke Yamanishi, Lakshmi Rajagopal, Nanette Deneen Hannah, Herbert Y Meltzer, Tohru Yamamoto, Shuji Wakatsuki, Toshiyuki Araki, Katsuhiko Tabuchi, Tadahiro Numakawa, Hiroshi Kunugi, Freesia L Huang, Atsuko Hayata-Takano, Hitoshi Hashimoto, Kota Tamada, Toru Takumi, Takaoki Kasahara, Tadafumi Kato, Isabella A Graef, Gerald R Crabtree, Nozomi Asaoka, Hikari Hatakama, Shuji Kaneko, Takao Kohno, Mitsuharu Hattori, Yoshio Hoshiba, Ryuhei Miyake, Kisho Obi-Nagata, Akiko Hayashi-Takagi, Léa J Becker, Ipek Yalcin, Yoko Hagino, Hiroko Kotajima-Murakami, Yuki Moriya, Kazutaka Ikeda, Hyopil Kim, Bong-Kiun Kaang, Hikari Otabi, Yuta Yoshida, Atsushi Toyoda, Noboru H Komiyama, Seth GN Grant, Michiru Ida-Eto, Masaaki Narita, Ken-ichi Matsumoto, Emiko Okuda-Ashitaka, Iori Ohmori, Tadayuki Shimada, Kanato Yamagata, Hiroshi Ageta, Kunihiro Tsuchida, Kaoru Inokuchi, Takayuki Sassa, Akio Kihara, Motoaki Fukasawa, Nobuteru Usuda, Tayo Katano, Teruyuki Tanaka, Yoshihiro Yoshihara, Michihiro Igarashi, Takashi Hayashi, Kaori Ishikawa, Satoshi Yamamoto, Naoya Nishimura, Kazuto Nakada, Shinji Hirotsune, Kiyoshi Egawa, Kazuma Higashisaka, Yasuo Tsutsumi, Shoko Nishihara, Noriyuki Sugo, Takeshi Yagi, Naoto Ueno, Tomomi Yamamoto, Yoshihiro Kubo, Rie Ohashi, Nobuyuki Shiina, Kimiko Shimizu, Sayaka Higo-Yamamoto, Katsutaka Oishi, Hisashi Mori, Tamio Furuse, Masaru Tamura, Hisashi Shirakawa, Daiki X Sato, Yukiko U Inoue, Takayoshi Inoue, Yuriko Komine, Tetsuo Yamamori, Kenji Sakimura, Tsuyoshi Miyakawa

Publikováno v: eLife, Vol 12 (2024)

Increased levels of lactate, an end-product of glycolysis, have been proposed as a potential surrogate marker for metabolic changes during neuronal excitation. These changes in lactate levels can result in decreased brain pH, which has been implicate

Externí odkaz: https://doaj.org/article/15de117935204a21a8487997042e8094

Culture-space control is effective in promoting haploid cell formation and spermiogenesis in vitro in neonatal mice

Autor: Kiyoshi Hashimoto, Hisakazu Odaka, Yu Ishikawa-Yamauchi, Shino Nagata, Hiroko Nakamura, Hiroshi Kimura, Takuya Sato, Kazuhide Makiyama, Takehiko Ogawa

Publikováno v: Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)

Abstract The classical organ culture method, in which tissue is placed at the gas‒liquid interphase, is effective at inducing mouse spermatogenesis. However, due to reginal variations in the supply of oxygen and nutrients within a tissue, the progr

Externí odkaz: https://doaj.org/article/c00ed94f705a4ea883a1835418e61435

Localizing Japanese toads in a mountainous terrain using drone-based radiotelemetry

Autor: Chiaki Yamato, Tomoichiro Tanaka, Kotaro Ichikawa, Takuya Sato

Publikováno v: Drone Systems and Applications, Vol 11, Iss , Pp 1-10 (2023)

Monitoring the movement of small animals is a fundamental aspect of ecological studies as well as spatially explicit conservation and management. However, this remains a challenging task especially in mountainous terrains. Although drone-based radiot

Externí odkaz: https://doaj.org/article/58e1e75a7966474d83526294e0dd543c

Monitoring the Resolution of Acute Exacerbation of Airway Bronchoconstriction in an Asthma Attack Using Capnogram Waveforms

Autor: Mio Shikama, MD, Miyuki Yamamoto, MD, PhD, Itsuki Osawa, MD, Takuya Sato, MD, Ichiro Hirayama, MD, PhD, Naoki Hayase, MD, PhD, Takehiro Matsubara, MD, PhD, Kent Doi, MD, PhD

Publikováno v: Critical Care Explorations, Vol 5, Iss 4, p e0899 (2023)

BACKGROUND:. Patients with acute bronchospasm can show a distinct slope of the capnogram (“shark fin”) as a result of asynchronous alveolar excretion. Although the slope of the upward alveolar plateau (phase III) in the capnogram waveforms of non

Externí odkaz: https://doaj.org/article/1710fea0892044ceb962da86611720d8