Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Glutamatergic neurotransmission is a widespread form of synaptic excitation in the mammalian brain. The development of genetically encoded fluorescent glutamate sensors allows monitoring synaptic signaling in living brain tissue in real time. Here, we describe single- and two-photon imaging of synaptically evoked glutamatergic population signals in acute hippocampal slices expressing the fluorescent glutamate sensor SF-iGluSnFR.A184S in CA1 or CA3 pyramidal neurons. The protocol can be readily used to study defective synaptic glutamate signaling in mouse models of neuropsychiatric disorders, such as Alzheimer disease. For complete details on the use and execution of this protocol, please refer to Zott et al. (2019).

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591355PMC
http://dx.doi.org/10.1016/j.xpro.2021.100877DOI Listing

Publication Analysis

Top Keywords

imaging synaptically
8
hippocampal slices
8
fluorescent glutamate
8
population imaging
4
synaptically released
4
glutamate
4
released glutamate
4
glutamate mouse
4
mouse hippocampal
4
slices glutamatergic
4

Similar Publications

Autism is a neurodevelopmental condition associated with altered resting-state brain function. An increased excitation-inhibition ratio is discussed as a pathomechanism but in-vivo evidence of disturbed neurotransmission underlying functional alterations remains scarce. We compare local resting-state brain activity and neurotransmitter co-localizations between autism (N = 405, N = 395) and neurotypical controls (N = 473, N = 474) in two independent cohorts and correlate them with excitation-inhibition changes induced by glutamatergic (ketamine) and GABAergic (midazolam) medication.

View Article and Find Full Text PDF

Enhanced Giant Ferroelectric Tunneling Electroresistance in 2D Ruddlesden-Popper Oxides.

ACS Nano

September 2025

Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072, China.

Ferroelectric tunnel junctions (FTJs) based on ferroelectric switching and quantum tunneling effects with thickness down to a few unit cells have been explored for applications of two-dimensional (2D) electronic devices in data storage and neural networks. As a key performance indicator, the enhanced tunneling electrosistance (TER) ratio provides a broader dynamic range for precise modulation of synaptic weights, improving the stability and accuracy of neural networks. Herein, we report an observation of pronounced enhancement in the TER ratio by over 4 orders of magnitude through the fabrication of large-scale heterostructures combining bismuth ferrite with two-dimensional Ruddlesden-Popper oxide BiFeO.

View Article and Find Full Text PDF

Examining circadian synaptic plasticity requires housing mice under different lighting conditions (light/dark cycle, LD 12:12, and constant darkness, DD), providing access to running wheels, and sacrificing them at four defined time points within 24 h-at the beginning and middle of the day/subjective day and at the beginning and middle of the night/subjective night. Brains are then properly fixed for transmission electron microscopy (TEM). The barrel cortex, with its precise somatotopic organization, provides an ideal model for such analysis.

View Article and Find Full Text PDF

Objective: To investigate the neural and molecular correlates of occupational burnout in nurses by integrating resting-state fMRI (rs-fMRI), clinical assessments, brain-wide gene expression, and neurotransmitter atlases.

Methods: Fifty-one female nurses meeting burnout criteria and 51 matched healthy controls underwent 3 T rs-fMRI. We analyzed fractional amplitude of low-frequency fluctuations (fALFF) and seed-based functional connectivity (FC), correlating findings with burnout (emotional exhaustion [EE], depersonalization [DP], and personal accomplishment [PA]).

View Article and Find Full Text PDF

POU6F1 promote lumbar motor circuit reorganization following spinal cord injury.

Neurobiol Dis

September 2025

Mudanjiang Collaborative Innovation Center for development and application of Northern Medicine Resources, Mudanjiang, PR China; Institute of Neural Tissue Engineering, Mudanjiang Medical University, Mudanjiang, Heilongjiang, PR China. Electronic address:

Spinal cord injury (SCI) causes irreversible motor deficits due to disrupted lumbar circuitry. However, transcriptional mechanisms in distal lumbar circuits are poorly understood. We identify POU6F1 as a critical transcriptional regulator in spinal lumbar segment (SLS, L3-L5) motor circuit regeneration.

View Article and Find Full Text PDF