Results 51 to 60 of about 3,121 (204)

Neuro‐Immune Crosstalk: Molecular Mechanisms, Biological Functions, Diseases, and Therapeutic Targets

open access: yesMedComm, Volume 7, Issue 2, February 2026.
Neurons, immune cells, and other cellular components within the disease microenvironment (such as stromal cells and tumor cells) constitute a dynamically evolving ecosystem. Neurons directly modulate immune cell activity and inflammatory responses through the release of neurotransmitters (e.g., norepinephrine and CGRP), while also promoting tumor ...
Xin Guo   +11 more
wiley   +1 more source

Hilar GABAergic interneuron activity controls spatial learning and memory retrieval. [PDF]

open access: yesPLoS ONE, 2012
Although extensive research has demonstrated the importance of excitatory granule neurons in the dentate gyrus of the hippocampus in normal learning and memory and in the pathogenesis of amnesia in Alzheimer's disease (AD), the role of hilar GABAergic ...
Yaisa Andrews-Zwilling   +13 more
doaj   +1 more source

Role of Glutamatergic Projections from Lateral Habenula to Ventral Tegmental Area in Inflammatory Pain-Related Spatial Working Memory Deficits

open access: yesBiomedicines, 2023
The lateral habenula (LHb) and the ventral tegmental area (VTA), which form interconnected circuits, have important roles in the crucial control of sensory and cognitive motifs.
Mobina Alemi   +5 more
doaj   +1 more source

Optoelectronic Interfaces for Nongenetic Modulation of Excitable Tissues

open access: yesSmall Methods, Volume 10, Issue 3, 9 February 2026.
This review summarizes recent advances in nongenetic optoelectronic technologies for the modulation of excitable biotissues, covering material selection, device design, and working principles, as well as characterization methods. Representative applications in in vitro and in vivo models of the cardiac, central, and peripheral nervous systems are ...
Qi Wang, Jinghua Li
wiley   +1 more source

Stabilized Ion Selectivity Corrects Activation Drift in Kalium Channelrhodopsins

open access: yesAdvanced Science, Volume 13, Issue 6, 30 January 2026.
As newly emerged optogenetic tools, potassium channelrhodopsins (KCRs) can drift from inhibition to activation during illumination as K⁺ selectivity declines. It is shown that both the absolute K⁺/Na⁺ permeability ratio and its stability over time govern this drift, identify KCR1‐C29D as a reliably inhibitory variant, and outline design principles for ...
Xiao Duan   +14 more
wiley   +1 more source

Kappa opioid receptors in the central amygdala modulate spinal nociceptive processing through an action on amygdala CRF neurons

open access: yesMolecular Brain, 2020
The amygdala plays an important role in the emotional-affective aspects of behaviors and pain, but can also modulate sensory aspect of pain (“nociception”), likely through coupling to descending modulatory systems.
Guangchen Ji, Volker Neugebauer
doaj   +1 more source

GFAP-NpHR mediated optogenetic inhibition of trigeminal nucleus caudalis attenuates hypersensitive behaviors and thalamic discharge attributed to infraorbital nerve constriction injury

open access: yesThe Journal of Headache and Pain, 2023
The significance of hyperactive astrocytes in neuropathic pain is crucial. However, the association between medullary astrocytes and trigeminal neuralgia (TN)-related pain processing is unclear.
Elina KC   +3 more
doaj   +1 more source

Analogies between halorhodopsin and bacteriorhodopsin

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2000
The light-activated proton-pumping bacteriorhodopsin and chloride ion-pumping halorhodopsin are compared. They belong to the family of retinal proteins, with 25% amino acid sequence homology. Both proteins have seven alpha helices across the membrane, surrounding the retinal binding pocket. Photoexcitation of all-trans retinal leads to ion transporting
openaire   +2 more sources

Activation of Insula‐Accumbal Projection Neurons Is Required for Relapse‐Like Behaviour Following Opioid Self‐Administration

open access: yesAddiction Biology, Volume 31, Issue 1, January 2026.
ABSTRACT The insular cortex (IC) is known to underlie drug seeking and relapse for multiple drug classes, yet the precise role the IC plays in opioid use disorder (OUD) remains unclear. In preclinical models of OUD, inhibition of the IC has produced conflicting results, such that in some cases the IC seems to promote opioid seeking whereas in others ...
Rachel E. Clarke   +8 more
wiley   +1 more source

Microbial light-activatable proton pumps as neuronal inhibitors to functionally dissect neuronal networks in C. elegans. [PDF]

open access: yesPLoS ONE, 2012
Essentially any behavior in simple and complex animals depends on neuronal network function. Currently, the best-defined system to study neuronal circuits is the nematode Caenorhabditis elegans, as the connectivity of its 302 neurons is exactly known ...
Steven J Husson   +5 more
doaj   +1 more source

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