Results 31 to 40 of about 953,090 (297)

Gravity-efficient motor control is associated with contraction-dependent intracortical inhibition

open access: yesiScience, 2023
Summary: In humans, moving efficiently along the gravity axis requires shifts in muscular contraction modes. Raising the arm up involves shortening contractions of arm flexors, whereas the reverse movement can rely on lengthening contractions with the ...
Nicolas Gueugneau   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Mission SpaceX CRS-19 RRRM-1 space flight induced skin genomic plasticity via an epigenetic trigger

open access: yesiScience
Summary: Genomic plasticity helps adapt to extreme environmental conditions. We tested the hypothesis that exposure to space environment (ESE) impacts the epigenome inducing genomic plasticity.
Kanhaiya Singh   +9 more
doaj   +1 more source

Surgical Aspects of Space Medicine [PDF]

open access: yesInternational Journal of Medical Arts, 2019
Although the perception of surgery in space may appear obscure, it is vital to initiate planning early if new frontiers in space travel are to be accomplished.
Nagah Salem
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

A PARADIGM SHIFT FROM TELEMEDICINE TO AUTONOMOUS HUMAN HEALTH AND PERFORMANCE FOR LONG-DURATION SPACE MISSIONS

open access: yesInternational Journal of Prognostics and Health Management, 2019
This paper discusses a Prognostics and Health Management [PHM]-based approach to implementing Human Health & Performance [HH&P] technologies. Targeted specifically are NASA Autonomous Medical Decision and Integrated Biomedical Informatics of Human Health,
Alexandre Popov   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Radioprotection redefined: drug discovery at the intersection of tardigrade biology and translational pharmacology

open access: yesFrontiers in Pharmacology
Ionizing radiation inflicts lethal double-strand DNA breaks and oxidative stress that underlie acute radiation syndrome, secondary malignancies, and dose-limiting toxicity in radiotherapy; yet the conventional armamentarium of radioprotectants ...
Zhitao Cui   +4 more
doaj   +1 more source

Utility of ultrasound in managing acute medical conditions in space: a scoping review

open access: yesThe Ultrasound Journal, 2023
Background In long-distance spaceflight, the challenges of communication delays and the impracticality of rapid evacuation necessitate the management of medical emergencies by onboard physicians. Consequently, these physicians must be proficient in tools,
Parsa Asachi   +4 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

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