Results 21 to 30 of about 18,484 (195)

Hemodynamic responses evoked by neuronal stimulation via channelrhodopsin-2 can be independent of intracortical glutamatergic synaptic transmission. [PDF]

open access: yesPLoS ONE, 2012
Maintenance of neuronal function depends on the delivery of oxygen and glucose through changes in blood flow that are linked to the level of ongoing neuronal and glial activity, yet the underlying mechanisms remain unclear.
Nadia A Scott, Timothy H Murphy
doaj   +1 more source

Optogenetics in Alzheimer’s Disease: Focus on Astrocytes

open access: yesAntioxidants, 2023
Alzheimer’s disease (AD) is the most common form of dementia, resulting in disability and mortality. The global incidence of AD is consistently surging.
Elena Mitroshina   +2 more
doaj   +1 more source

Monitoring the Progression of Cell-Free Expression of Microbial Rhodopsins by Surface Enhanced IR Spectroscopy: Resolving a Branch Point for Successful/Unsuccessful Folding

open access: yesFrontiers in Molecular Biosciences, 2022
The translocon-unassisted folding process of transmembrane domains of the microbial rhodopsins sensory rhodopsin I (HsSRI) and II (HsSRII), channelrhodopsin II (CrChR2), and bacteriorhodopsin (HsBR) during cell-free expression has been investigated by ...
Kenichi Ataka   +5 more
doaj   +1 more source

Cryo-EM structures of the channelrhodopsin ChRmine in lipid nanodiscs

open access: yesNature Communications, 2021
Microbial channelrhodopsins are light-gated ion channels widely used for optogenetic manipulation of neuronal activity. ChRmine is a bacteriorhodopsin-like cation channelrhodopsin (BCCR) more closely related to ion pump rhodopsins than other ...
K. Tucker   +3 more
semanticscholar   +1 more source

Non-viral delivery and optimized optogenetic stimulation of retinal ganglion cells led to behavioral restoration of vision [PDF]

open access: yes, 2012
Stimulation of retinal neurons using optogenetics via use of chanelrhodopsin-2 (ChR2) has opened up a new direction for restoration of vision for treatment of retinitis pigmentosa (RP).
Edward Wong   +5 more
core   +2 more sources

An engineered channelrhodopsin optimized for axon terminal activation and circuit mapping

open access: yesCommunications Biology, 2021
Optogenetic tools such as channelrhodopsin-2 (ChR2) enable the manipulation and mapping of neural circuits. However, ChR2 variants selectively transported down a neuron’s long-range axonal projections for precise presynaptic activation remain lacking. As
S. Hamada   +6 more
semanticscholar   +1 more source

Fast targeted gene transfection and optogenetic modification of single neurons using femtosecond laser irradiation [PDF]

open access: yes, 2013
This work is supported by the UK Engineering Physical Sciences Research Council (EPSRC).A prevailing problem in neuroscience is the fast and targeted delivery of DNA into selected neurons.
Antkowiak, Maciej   +5 more
core   +1 more source

Optogenetic Stimulation Using Anion Channelrhodopsin (GtACR1) Facilitates Termination of Reentrant Arrhythmias With Low Light Energy Requirements: A Computational Study

open access: yesFrontiers in Physiology, 2021
Optogenetic defibrillation of hearts expressing light-sensitive cation channels (e.g., ChR2) has been proposed as an alternative to conventional electrotherapy.
Alexander R Ochs   +3 more
semanticscholar   +1 more source

Functional cardiac imaging by random access microscopy

open access: yesFrontiers in Physiology, 2014
Advances in the development of voltage sensitive dyes and Ca2+ sensors in combination with innovative microscopy techniques allowed researchers to perform functional measurements with an unprecedented spatial and temporal resolution.
Claudia eCrocini   +7 more
doaj   +1 more source

Biophysical properties of optogenetic tools and their application for vision restoration approaches.

open access: yesFrontiers in Systems Neuroscience, 2016
Optogenetics is the use of genetically encoded light-activated proteins to manipulate cells in a minimally invasive way using light. The most prominent example is channelrhodopsin2 (ChR2), which allows the activation of electrically excitable cells via ...
Simon Darius Klapper   +3 more
doaj   +1 more source

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