Progresses in microscopy have often led to major discoveries in neuroscience, and the recent advent of super-resolution microscopy is no exception. In this review, we will show how imaging has advanced our modern vision of synaptic function. More particularly, we will emphasize how novel nanoscopy techniques have helped in deciphering the organization of post-synaptic proteins, offering new insight into the mechanism of synaptic transmission.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.cbpa.2014.05.017 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
Buck Institute for Research on Aging, Novato, CA, USA.
Background: Synapses can modify their strength in response to activity, and the unique properties of synapses that regulate their plasticity are essential for memory. Long-term potentiation (LTP) is considered the physiological basis for how neurons encode new memories. A complex series of postsynaptic signaling events in LTP is associated with memory deficits in tauopathy models, but the mechanism by which pathogenic tau inhibits plasticity at synapses is unknown.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Texas Medical Branch, Galveston, TX, USA.
Background: Alzheimer's disease (AD) is a common form of dementia characterized by the accumulation of amyloid beta (Aβ) and phosphorylated tau proteins in the brain. While clinical observations are typically used for AD diagnosis, postmortem studies have revealed individuals without dementia symptoms but with high AD pathology, known as resilient individuals. Calcium permeable AMPA receptors (CP-AMPARs) have been implicated in the calcium dyshomeostasis of AD, but it is unclear whether they are found or behave differently at the electrophysiological level in resilient and control individuals compared to AD patients.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Centre for Brain Research, Indian Institute of Science, Bangalore, Karnataka, India.
Background: F-actin plays crucial roles in establishment and maintenance of synapses including post synaptic density organization, facilitation of vesicle trafficking, anchoring of postsynaptic receptors, and involvement in translational machinery. Proteomic analysis of actin-interacting proteins revealed the interaction of PSD-95 with actin in synaptosomes from brain cortex of APP/PS1 mice. PSD-95 functions as a critical scaffold for the assembly of neurotransmitter receptors at the synapse, playing a pivotal role in regulating synaptic strength and plasticity.
View Article and Find Full Text PDFHippocampal Synaptic Plasticity: Integrating Memory and Anxiety Impairments in the Early Stages of Alzheimer's Disease.
Curr Top Behav Neurosci
January 2025
Department of Experimental Psychology, University of Oxford, Oxford, UK.
A decline in hippocampal function has long been associated with the progression of cognitive impairments in patients with Alzheimer's disease (AD). The disruption of hippocampal synaptic plasticity [primarily the reduction of long-term potentiation LTP] by excess production of soluble beta-amyloid (Aβ) has long been accepted as the mechanism by which AD pathology impairs memory, at least during the early stages of AD pathogenesis. However, the premise that hippocampal LTP underpins the formation of associative, long-term memories has been challenged.
View Article and Find Full Text PDFAngiotensin 1-7 injected into the rat paraventricular nucleus of hypothalamus increases blood pressure and heart rate via various receptors.
Neuropharmacology
December 2024
Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, Ul. Mickiewicza 2A, 15-222, Białystok, Poland.
Although angiotensin 1-7 (Ang 1-7) and its role as a part of the "protective" axis of the renin-angiotensin system are well described in the literature, the mechanisms of its angiotensin II-like pressor and tachycardic effects following its acute central administration are not fully understood. It was the aim of the present study to examine which receptors contribute to the aforementioned cardiovascular effects. Ang 1-7 and antagonists for glutamate, GABA, vasopressin, thromboxane A (TP), α-adrenergic, and P2X purinoceptors or modulators of oxidative stress were injected into the paraventricular nucleus of the hypothalamus (PVN) of urethane-anesthetized male Wistar rats.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!