Vesicular Glutamate Transporter
Vesicular Glutamate Transporter - Related Videos
09:42
Deriving the Time Course of Glutamate Clearance with a Deconvolution Analysis of Astrocytic Transporter Currents
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Cited by 11 •
2013
We describe an analytical method to estimate the lifetime of glutamate at astrocytic membranes from electrophysiological recordings of glutamate transporter currents in astrocytes.
01:23
Mechanisms of Drug Absorption: Paracellular, Transcellular, and Vesicular Transport
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2024
Drugs need to permeate cell membranes to reach their target sites after administration. Orally administered drugs must transcend intestinal epithelial membrane barriers to infiltrate the systemic circulation. Drugs with a molecular weight of less than 500 Daltons diffuse through gaps between neighboring cells, called paracellular pathways. However, most drugs use the transcellular route, traversing directly through the cell membranes via two mechanisms: passive and active transport. Passive...
01:45
Vesicular Tubular Clusters
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2023
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi. With the help of motor proteins such...
07:48
Glutamate and Hypoxia as a Stress Model for the Isolated Perfused Vertebrate Retina
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Cited by 16 •
2015
With this study, we introduce a standardized stress model for the isolated superfused bovine retina for future preclinical therapeutic testing. The effect of either hypoxia (pure N2) or glutamate stress (250 µM glutamate) on retinal function represented by a- and b-wave amplitudes was evaluated.
04:10
Analyzing the Glutamate Release and Clearance at a Single Neuron Synapse in a Mouse Brain Slice
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2025
This video demonstrates evaluating glutamate release and clearance at single corticostriatal synapses in a mouse brain slice. Electrical stimulation facilitates glutamate release at the synapse. The released glutamate alters sensor protein's fluorescence, which decays over time, indicating release and clearance efficiency.
FAQs
The proton gradient supplies the driving force that allows VGLUT to exchange protons for cytoplasmic glutamate. Its importance extends beyond loading individual vesicles: the resulting glutamate concentration determines whether a vesicle contains sufficient transmitter for fast excitatory communication after fusion. Changes that disrupt this coupling can therefore influence signaling at the synaptic level.
Inherited or experimentally introduced variants in VGLUT genes may change the effectiveness of glutamate packaging, although the specific consequence depends on the variant and its regulatory context. Genetic analysis connects such changes with altered glutamatergic signaling, neuronal development, and circuit function, helping researchers relate molecular differences to broader nervous-system phenotypes.
VGLUT expression provides a molecular marker for examining where glutamatergic signaling machinery is present and how it changes. In genetic studies, comparing expression patterns with gene regulation or introduced variants can help investigate synapse formation and circuit organization. This makes expression information useful for linking gene activity to neuronal structure and function.
VGLUT mutations offer a way to examine how changes in a glutamate-packaging component may influence neuronal communication and circuit behavior. Their effects can be considered alongside neuronal development and synapse formation, allowing researchers to trace disease-related mechanisms from genetic variation through cellular signaling and potentially identify molecular points for therapeutic investigation.
A study can begin by examining VGLUT genes and their regulation, then evaluating inherited or experimentally introduced variants together with VGLUT expression. Researchers can relate these molecular findings to glutamatergic signaling, neuronal development, synapse formation, or circuit function. This workflow organizes genetic information around measurable biological consequences without treating every variant as equivalent.
VGLUT-focused genetic studies can address several connected outcomes: changes in glutamatergic signaling, neuronal development, circuit function, and synapse formation. Examining these levels together helps distinguish a molecular genetic effect from its consequences for neuronal organization or communication. The approach is therefore relevant to both basic studies of synapses and investigations of neurological disease mechanisms.
Expression patterns and mutation effects can identify molecular relationships between VGLUT biology and disrupted neuronal communication. Researchers may use this information to clarify neurological disease mechanisms and to evaluate VGLUT-related processes as potential therapeutic targets. The genetic context is especially valuable because it connects regulation or sequence variation with changes in neural development and circuit function.