Results 51 to 60 of about 15,652 (191)

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

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

Evaluation the effect of erythropoietin on osteoporosis in a microgravity simulation model [PDF]

فصلنامه ابن سینا, 2015
Background: Bone loss is a well-documented phenomenon occurring in humans both in short- and long-term spaceflights. Revealing data on the role of erythropoietin (EPO) in bone formation has led some to suggest that EPO treatment could also play a role in
A Khoshvaghti, A NurMohammadi, Shahin Jahani Maleki   +2 more
doaj  

Artificial gravity as a countermeasure for mitigating physiological deconditioning during long-duration space missions

Frontiers in Systems Neuroscience, 2015
In spite of the experience gained in human space flight since Yuri Gagarin’s historical flight in 1961, there has yet to be identified a completely effective countermeasure for mitigating the effects of weightlessness on humans. Were astronauts to embark
Gilles eClement, Angie eBukley, William ePaloski   +2 more
doaj   +1 more source

Benefits of Motor Imagery for Human Space Flight: A Brief Review of Current Knowledge and Future Applications

Frontiers in Physiology, 2019
Motor imagery (MI) is arguably one of the most remarkable capacities of the human mind. There is now strong experimental evidence that MI contributes to substantial improvements in motor learning and performance.
Aymeric Guillot, Aymeric Guillot, Ursula Debarnot   +2 more
doaj   +1 more source

High-Throughput Sequencing Reveals CXCR4 and IGF1 Behave Different Roles in Weightlessness Osteoporosis

Stem Cells International, 2022
Objective. This study is aimed at screening the differential expression profiles of mRNA under weightlessness osteoporosis through high-throughput sequencing technology, as well as investigating the pathogenesis of weightlessness osteoporosis at the ...
Dong Wang, Weihang Li, Ziyi Ding, Quan Shi, Shilei Zhang, Zhuoru Zhang, Zhibin Liu, Xiaocheng Wang, Ming Yan   +8 more
doaj   +1 more source

A Technique of Forced Expiratory Noise Time Evaluation Provides Distinguishing Human Pulmonary Ventilation Dynamics During Long-Term Head-Down and Head-Up Tilt Bed Rest Tests Simulating Micro and Lunar Gravity

Frontiers in Physiology, 2018
Estimating the effect of microgravity/hypogravity on pulmonary ventilation function remains topical. Recently developed acoustic techniques based on the evaluation of the forced expiratory noise time (FETa) were hypothesized to be a promising tool for ...
Veronika V. Malaeva, Vladimir I. Korenbaum, Irina A. Pochekutova, Anatoly E. Kostiv, Svetlana N. Shin, Vladimir P. Katuntsev, Viktor M. Baranov   +6 more
doaj   +1 more source

Perception of Affordance during Short-Term Exposure to Weightlessness in Parabolic Flight. [PDF]

PLoS ONE, 2016
We investigated the role of the visual eye-height (VEH) in the perception of affordance during short-term exposure to weightlessness. Sixteen participants were tested during parabolic flight (0g) and on the ground (1g).
Aurore Bourrelly, Joseph McIntyre, Cédric Morio, Pascal Despretz, Marion Luyat   +4 more
doaj   +1 more source

Effects of simulated weightlessness on cellular morphology and biological characteristics of cell lines SGC-7901 and HFE-145.

Genetics and Molecular Research, 2014
We investigated the effects of simulated weightlessness on cellular morphology, proliferation, cell cycle, and apoptosis of the human gastric carcinoma cell line SGC-7901 and the human gastric normal cell line HFE-145.
M. Zhu, X. Jin, B. Wu, J. Nie, Y. Li
semanticscholar   +1 more source