Results 171 to 180 of about 77,143 (337)

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

open access: yesExperimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti   +6 more
wiley   +1 more source

Optogenetic methods to stimulate gamma motor neuron axons ex vivo

open access: yesExperimental Physiology, EarlyView.
Abstract It is challenging to stimulate gamma motor neurons, which are important regulators of muscle spindle afferent function, without also recruiting alpha motor neurons. Here, we test the feasibility of stimulating gamma motor neuron axons using optogenetics in two transgenic mouse lines. We used an ex vivo muscle–nerve preparation in adult mice to
Apoorva Karekal   +7 more
wiley   +1 more source

Nicotinic Acetylcholine Receptor α7 Subunit Mediates Migration of Vascular Smooth Muscle Cells Toward Nicotine

open access: yesJournal of Pharmacological Sciences, 2004
GbaSM-4 cells, vascular smooth muscle cells (VSMCs) derived from brain basilar arteries, were shown to migrate toward d-nicotine by augmenting the actin cytoskeleton in their cell bodies and lamellipodia, and expression of nicotinic acetylcholine ...
Sheng Li   +7 more
doaj  

The causative role of amyloidosis in the cardiac complications of Alzheimer's disease: a comprehensive systematic review

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustration of the bidirectional causative link between cerebral amyloid‐beta (Aβ) angiopathy and cardiovascular disease in Alzheimer's disease (AD). Common cardiovascular risk factors like microvascular thrombosis, diabetes, atrial fibrillation, hypertension and atherosclerosis lead to cerebral hypoperfusion and ...
Samuel Parker   +2 more
wiley   +1 more source

The mysterious middlemen making your vision pop: understanding the function of amacrine cells

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This review aims to illustrate the diversity and function of amacrine cells in the retina. The diversity of amacrine cell subtypes is depicted based on morphology, stratification and neurotransmitter expression, along with their synaptic connectivity with bipolar and ganglion cells, emphasizing inhibitory and modulatory roles ...
Victor Calbiague‐Garcia   +3 more
wiley   +1 more source

Nicotinic acetylcholine receptors in cultured neurons from the hippocampus and brain stem of the rat characterized by single channel recording [PDF]

open access: bronze, 1987
Yasco Aracava   +6 more
openalex   +1 more source

Combined Effects of Intermittent Hypoxia and Amyloid Beta on Hippocampal Activity, Its Cholinergic Modulation, and Memory

open access: yesHippocampus, Volume 35, Issue 4, July 2025.
ABSTRACT Obstructive sleep apnea (OSA), characterized by repetitive upper airway obstruction, leads to chronic intermittent hypoxia (cIH) and induces cognitive and neuronal network disruptions similar to those observed in Alzheimer's disease (AD). These pathologies are often presented together in the elderly and share some pathophysiological mechanisms.
Pinedo‐Vargas Laura   +4 more
wiley   +1 more source

CreoPep: A Universal Deep Learning Framework for Target-Specific Peptide Design and Optimization [PDF]

open access: yesarXiv
Target-specific peptides, such as conotoxins, exhibit exceptional binding affinity and selectivity toward ion channels and receptors. However, their therapeutic potential remains underutilized due to the limited diversity of natural variants and the labor-intensive nature of traditional optimization strategies. Here, we present CreoPep, a deep learning-
arxiv  

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