Results 171 to 180 of about 235,457 (380)

Evidence for glutamate-mediated excitotoxic mechanisms during photoreceptor degeneration in the rd1 mouse retina [PDF]

open access: yes, 2005
PURPOSE: Kinetic studies of photoreceptor cell death in the retinal degeneration (rd1) mouse model suggest that photoreceptor degeneration could result from cumulative damage.
Delyfer, MN   +5 more
core  

Reversible High‐Affinity Binding of Coagulation Factor Xa to Zeolites Induces Accelerated Blood Coagulation

open access: yesAdvanced Science, EarlyView.
A calcium‐dependent, specific biorecognition between coagulation factor Xa (FXa) and zeolite is discovered. It alters the prothrombin activation pathway to a more efficient mechanism by mimicking the FXa/factor Va (FXa/FVa) interaction formed during the natural coagulation cascade.
Chaojie Shi   +9 more
wiley   +1 more source

Construction of Trans-4-hydroxy-L-proline-producing Escherichia coli and Optimization of Fermentation Conditions

open access: yesFermentation
In this study, we combined the citric acid cycle with the biosynthesis pathways of L-proline and L-hydroxyproline to construct a strain that produces L-hydroxyproline directly from glucose and other raw materials, without the addition of L-proline and α ...
Xinchao Yang   +6 more
doaj   +1 more source

LncRNA‐MEG3 Regulates Muscle Mass and Metabolic Homeostasis by Facilitating SUZ12 Liquid–Liquid Phase Separation

open access: yesAdvanced Science, EarlyView.
This study has identified lncRNA‐MEG3 as a key regulator of muscle mass, promoting slow‐twitch muscle fibers and preventing muscle atrophy. By stabilizing the SUZ12/PRC2 complex through liquid–liquid phase separation (LLPS), lncRNA‐MEG3 influences mitochondrial function and lipid metabolism.
Yilong Yao   +15 more
wiley   +1 more source

A Molecular Communication Perspective of Alzheimer's Disease: Impact of Amyloid Beta Oligomers on Glutamate Diffusion in the Synaptic Cleft [PDF]

open access: yesarXiv
Molecular communication (MC) within the synaptic cleft is vital for neurotransmitter diffusion, a process critical to cognitive functions. In Alzheimer's Disease (AD), beta-amyloid oligomers (A$\beta$os) disrupt this communication, leading to synaptic dysfunction.
arxiv  

Ion Transit Pathways and Gating in ClC Chloride Channels [PDF]

open access: yesarXiv, 2004
ClC chloride channels possess a homodimeric structure in which each monomer contains an independent chloride ion pathway. ClC channel gating is regulated by chloride ion concentration, pH, and voltage. Based on structural and physiological evidence, it has been proposed that a glutamate residue on the extracellular end of the selectivity filter acts as
arxiv  

Utilizing Caenorhabditis Elegans as a Rapid and Precise Model for Assessing Amphetamine‐Type Stimulants: A Novel Approach to Evaluating New Psychoactive Substances Activity and Mechanisms

open access: yesAdvanced Science, EarlyView.
This study uses Caenorhabditis elegans to assess the activity of amphetamine‐type stimulants (ATS) and their analogs. The research highlights the roles of dopamine and serotonin pathways, distinguishes chiral forms of ATS, and identifies structure‐activity relationships. These findings provide a rapid and cost‐effective model for evaluating the effects
Yuanpeng Li   +3 more
wiley   +1 more source

FABP4 as a Mediator of Lipid Metabolism and Pregnant Uterine Dysfunction in Obesity

open access: yesAdvanced Science, EarlyView.
Obesity during late pregnancy contributes to uterine smooth muscle dysfunction, but the underlying mechanisms are unclear. This study identifies fatty acid binding protein 4 (FABP4) as a key player in the process, mediating excessive fatty acid uptake, lipid accumulation, and mitochondrial dysfunction in myometrial cells. FABP4 could be a novel uterine
Xuan Li   +11 more
wiley   +1 more source

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