Results 61 to 70 of about 25,035 (360)

Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β‐carbonic anhydrase

FEBS Letters, EarlyView.
Here, we performed a functional analysis of the fungal enzymes belonging to clade D of the β‐class carbonic anhydrase family (β‐D‐CA). The β‐D‐CAs in the basidiomycete Gloeophyllum trabeum and the ascomycete Trichoderma harzianum showed very low activity in the hydration of CO2 but exhibited high activity in the hydrolysis of carbonyl sulfide (COS ...
Ryuka Iizuka, Takahiro Ogawa, Rikako Tsukida, Keiichi Noguchi, David Hibbett, Yoko Katayama, Makoto Yoshida   +6 more
wiley   +1 more source

Band instability in near-critical fluids subjected to vibration under weightlessness.

Physical Review E, 2017
Periodical patterns (bands) developing at the interface of two immiscible fluids under vibration parallel to interface are observed under zero-gravity conditions.
T. Lyubimova, Andrey Ivantsov, Y. Garrabos, C. Lecoutre, G. Gandikota, D. Beysens   +5 more
semanticscholar   +1 more source

Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions

FEBS Letters, EarlyView.
This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten, Lorenz Schwaiger, Zarah Forsberg, Kelsi R. Hall, Anton A. Stepnov, Tom Z. Emrich‐Mills, Iván Ayuso‐Fernández, Morten Sørlie, Roland Ludwig, Åsmund Kjendseth Røhr, Vincent G. H. Eijsink   +10 more
wiley   +1 more source

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

FEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra, Paul Weiland, Pauline Anka Plitzko, Julia Thiery, Laura Czech, Felix Willmund, Patricia Bedrunka, Gert Bange   +7 more
wiley   +1 more source

Evaluation of free-floating tracheal intubation in weightlessness via ice-pick position with a direct laryngoscopy and classic approach with indirect videolaryngoscopy

npj Microgravity, 2023
Long duration spaceflights to the Moon or Mars are at risk for emergency medical events. Managing a hypoxemic distress and performing an advanced airway procedure such as oro-tracheal intubation may be complicated under weightlessness due to ergonomic ...
Séamus Thierry, François Jaulin, Clément Starck, Philippe Ariès, Jan Schmitz, Steffen Kerkhoff, Cécile Isabelle Bernard, Matthieu Komorowski, Tobias Warnecke, Jochen Hinkelbein   +9 more
doaj   +1 more source

Simulated weightlessness affects the expression and activity of neuronal nitric oxide synthase in the rat brain

OncoTarget, 2017
Spaceflight induces pathophysiological alterations in various organs. To study pathophysiological adaptations to weightlessness on the ground, the tail suspension (TS) rat model has been used to simulate the effects of weightlessness.
N. Yoon, Kiyong Na, Hyunsoo Kim
semanticscholar   +1 more source

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

FEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga, Kazuki Harada, Takuya Yamauchi, Tetsuya Kitaguchi, Masami Yokota Hirai, Mitsuharu Matsumoto, Takashi Tsuboi   +6 more
wiley   +1 more source

The Case for Bisphosphonate Use in Astronauts Flying Long-Duration Missions

Cells
Changes in the structure of bone can occur in space as an adaptive response to microgravity and on Earth due to the adaptive effects to exercise, to the aging of bone cells, or to prolonged disuse.
Reece Rosenthal, Victor S. Schneider, Jeffrey A. Jones, Jean D. Sibonga   +3 more
doaj   +1 more source

Gravity influences top-down signals in visual processing. [PDF]

PLoS ONE, 2014
Visual perception is not only based on incoming visual signals but also on information about a multimodal reference frame that incorporates vestibulo-proprioceptive input and motor signals.
Guy Cheron, Axelle Leroy, Ernesto Palmero-Soler, Caty De Saedeleer, Ana Bengoetxea, Ana-Maria Cebolla, Manuel Vidal, Bernard Dan, Alain Berthoz, Joseph McIntyre   +9 more
doaj   +1 more source

Choroidal circulation disturbance is an initial factor in outer retinal degeneration in rats under simulated weightlessness

Frontiers in Physiology, 2023
Objective: Microgravity contributes to ocular injury yet the underlying mechanism remains unclear. This study aims to elucidate the mechanism behind choroidal circulation disorder and outer retinal degeneration in rats with simulated weightlessness ...
Yuxue Mu, Yuxue Mu, Dongyu Wei, Lilingxuan Yao, Xinyue Xu, Shaoheng Li, Ruidan Cao, Ruidan Cao, Tao Chen, Tao Chen, Zuoming Zhang   +10 more
doaj   +1 more source