Results 61 to 70 of about 34,554 (299)

Herpes Virus Reactivation in Astronauts During Spaceflight and Its Application on Earth

Frontiers in Microbiology, 2019
Latent herpes virus reactivation has been demonstrated in astronauts during shuttle (10–16 days) and International Space Station (≥180 days) flights. Following reactivation, viruses are shed in the body fluids of astronauts.
Bridgette V Rooney, B. Crucian, D. Pierson, M. Laudenslager, S. Mehta   +4 more
semanticscholar   +1 more source

Neutrophil-to-Lymphocyte Ratio: A Biomarker to Monitor the Immune Status of Astronauts

Frontiers in Immunology, 2020
A comprehensive understanding of spaceflight factors involved in immune dysfunction and the evaluation of biomarkers to assess in-flight astronaut health are essential goals for NASA.
Amber M. Paul, Siddhita D. Mhatre, Egle Cekanaviciute, A. Schreurs, C. Tahimic, R. Globus, Sulekha Anand, B. Crucian, S. Bhattacharya   +8 more
semanticscholar   +1 more source

A Multidirectional Textile Interface for Remote Control Using Dynamic Area‐Based Capacitance Modulation

Advanced Robotics Research, EarlyView.
Here, we present a textile, wearable capacitive interface enabling multidirectional remote control by dynamically modulating electrode overlap and spacing via a freely gliding upper electrode. A forearm‐mounted prototype drives robotic and media tasks with 12–15 ms latency, maintains < 0.8% drift after 500 cycles, and remains stably functional at 90 ...
Cagatay Gumus, Fulya Yenilmez, Kadir Ozlem, Hakan Kestir, Eren Tasdemir, Berkant Bakisli, Gökhan Ince, Ozgur Atalay, Asli Tuncay Atalay   +8 more
wiley   +1 more source

Sleep structure and autonomic nervous system state during four months of isolation in a space analogue mission

Frontiers in Human Neuroscience
IntroductionInsufficient or disturbed sleep impairs nocturnal physiological recovery and may negatively affect autonomic nervous system (ANS) regulation.
Martin Glos, Matthew Salanitro, Naima Laharnar, Artem Demin, Thomas Penzel, Ingo Fietze, Ingo Fietze   +6 more
doaj   +1 more source

Reduction of Movement in Neurological Diseases: Effects on Neural Stem Cells Characteristics

Frontiers in Neuroscience, 2018
Both astronauts and patients affected by chronic movement-limiting pathologies face impairment in muscle and/or brain performance. Increased patient survival expectations and the expected longer stays in space by astronauts may result in prolonged motor ...
Raffaella Adami, Jessica Pagano, Michela Colombo, Natalia Platonova, Deborah Recchia, Raffaella Chiaramonte, Roberto Bottinelli, Monica Canepari, Daniele Bottai   +8 more
doaj   +1 more source

Persistent Globe Flattening in Astronauts following Long-Duration Spaceflight

Neuro-ophthalmology (Aeolus Press. 1980), 2020
Posterior globe flattening has been well-documented in astronauts both during and after long-duration space flight (LDSF) and has been observed as early as 10 days into a mission on the International Space Station.
H. Thomas, Madera, C. Robert, Gibsonb, R. Michael, Barrattd, R. Neil, Millere, S. Prem, Subramanianf, E. Hanspeter, Killerg, J. William, Tarverh, E. Ashot, Sargsyanc, Kathleen, Garciac, F. Stephen, Harth, A. Larry, Krameri, Roy, Riascosi, J. Tyson, Brunstetterj, William, Lipskyb, Peter, Wostynk, G. Andrew, Leel   +31 more
semanticscholar   +1 more source

ZER1 Restrains Pressure Overload‐Induced Cardiac Remodeling by Targeting DVL2 for Gly/N‐Degron‐Dependent Degradation

Advanced Science, EarlyView.
Pressure overload suppresses cardiomyocyte ZER1, weakening CRL2Zer1‐mediated DVL2 degradation and allowing DVL2 accumulation. Elevated DVL2 activates CaMKII‐HDAC4‐MEF2C signaling, drives fetal gene reactivation, and promotes pathological remodeling.
Mingchao Jiang, Zhehao Lin, Lu Chen, Ying Ni, Jun Zhou, Wenjuan Zhang, Huilin Wang, Peifeng Ying, Xiu Lu, Kai Wang, Qingran Kong, Naxin Xu, Dingsheng Zhao, Jianwei Li, Guohui Zhong, Xingchen Meng, Sarkawt Hamad, Junmeng Zheng, Yuan Fu, Rongjiang Qin, Xuran Chu, Shangxuan Li, Youyou Li, Yili Wu, Yi Wang, Weihong Song, Yingxian Li, Shukuan Ling   +27 more
wiley   +1 more source

Space Radiation and Cancer Risk in Astronauts: Models, Evidence, Uncertainties, and Emerging Imaging Perspectives

Tomography
Cancer risk estimation remains one of the main unresolved challenges in human spaceflight beyond low Earth orbit, where astronauts are exposed to galactic cosmic rays, solar particle events, and high-linear energy transfer (high-LET) secondary radiation.
Chiara Zanon, Michele Basilicata, Agostino Chiaravalloti, Nicola Giannotti, Amalia Lupi, Filippo Crimì, Emilio Quaia   +6 more
doaj   +1 more source

Comparison of Autonomic Control of Blood Pressure During Standing and Artificial Gravity Induced via Short-Arm Human Centrifuge

Frontiers in Physiology, 2018
Autonomic control of blood pressure is essential toward maintenance of cerebral perfusion during standing, failure of which could lead to fainting. Long-term exposure to microgravity deteriorates autonomic control of blood pressure.
Ajay K. Verma, Da Xu, Michelle Bruner, Amanmeet Garg, Nandu Goswami, Andrew P. Blaber, Andrew P. Blaber, Kouhyar Tavakolian, Kouhyar Tavakolian   +8 more
doaj   +1 more source

Are head-down tilt bedrest studies capturing the true nature of spaceflight-induced cognitive changes? A review

Frontiers in Physiology, 2022
Although a number of studies have examined cognitive functions in space, the reasons behind the observed changes described by space research and anecdotal reports have not yet been elucidated. A potential source of cognitive changes is the cephalad fluid
Irén Barkaszi, Bea Ehmann, Borbála Tölgyesi, László Balázs, Anna Altbäcker   +4 more
doaj   +1 more source