Vertebrate Synaptic Preparation
Vertebrate Synaptic Preparation - Related Videos
11:24
Preparation of Living Isolated Vertebrate Photoreceptor Cells for Fluorescence Imaging
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Cited by 2 •
2011
A method is described for the preparation of single living photoreceptor cells from different vertebrate species for fluorescence imaging. The method can be used to image the fluorescence of endogenous fluorophores, such as NADH or vitamin A, or that of exogenously added fluorescent dyes sensitive to Ca2+ or other factors.
08:46
Studying Synaptic Vesicle Pools using Photoconversion of Styryl Dyes
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Cited by 18 •
2010
FM dyes have been of invaluable help in the understanding of synaptic dynamics. FMs are normally followed under the fluorescent microscope during different stimulation conditions. However, photoconversion of FM dyes combined with electron microscopy allows the visualization of distinct synaptic vesicle pools, among other ultrastructure components, in synaptic boutons.
04:53
Preparing Cultured Neurons for Optical Analysis of Recycled Synaptic Vesicles
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2025
This video demonstrates the procedure for preparing cultured neurons for optical analysis of recycled synaptic vesicles. The process involves fluorescence tagging of synaptic vesicle proteins and immunostaining to label and visualize the recycled vesicles within the neurons.
07:53
Split Retina as an Improved Flatmount Preparation for Studying Inner Nuclear Layer Neurons in Vertebrate Retina
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2024
This work presents an alternative flatmount retina preparation in which the removal of photoreceptor cell bodies enables faster antibody diffusion and improved patch pipette access to inner retinal neurons for immunohistochemistry, in situ hybridization, and electrophysiology experiments.
04:41
Preparation of Oligomeric β-amyloid1-42 and Induction of Synaptic Plasticity Impairment on Hippocampal Slices
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Cited by 74 •
2010
One feature of Alzheimer's Disease is the elevation of Aβ1-42 peptide. Here we provide a protocol for preparing synthetic Aβ1-42 oligomers, which impairs hippocampal Long-Term Potentiation, a cellular correlate of memory. This procedure is useful for investigating mechanisms of Aβ-induced pathology and drug screening.
FAQs
Careful dissection and mechanical homogenization help retain the cellular structures that make synaptic analysis possible. If these structures are not preserved, measurements of neurotransmitter release, receptor distribution, synaptic proteins, or signaling pathways may no longer reflect the organization being studied. The preparation therefore connects physical sample handling with the reliability of downstream neuroscience observations.
Centrifugation separates material from homogenized nervous tissue into synaptic fractions or related components. This separation gives investigators a more focused sample than whole tissue, allowing molecular features to be examined in relation to synaptic material. The resulting fractions support targeted analysis of proteins, receptors, neurotransmitter release mechanisms, and signaling pathways.
They provide a controlled experimental setting in which molecular and cellular aspects of synaptic function can be examined together. Researchers can investigate how neurotransmitter release, receptor distribution, synaptic proteins, and signaling pathways relate to communication between neurons. This helps connect specific synaptic mechanisms with broader patterns of neuronal activity and function.
The workflow begins with careful dissection of vertebrate neural tissue, followed by mechanical homogenization performed under conditions intended to preserve cellular structures. The homogenized material is then separated through centrifugation or a related procedure to obtain synaptic fractions. Each stage prepares the sample for controlled analysis of synaptic components and their associated functions.
Synaptic preparations can support measurements of neurotransmitter release, receptor distribution, synaptic protein content, and signaling pathways. Together, these readouts provide complementary information about how synapses are organized and how they function. Investigators can use the results to relate molecular properties of synaptic material to cellular mechanisms involved in neuronal communication.
The approach is relevant when researchers need to examine synaptic mechanisms in the context of development, plasticity, or disease. It also supports broader studies of neuronal communication by allowing synaptic components and signaling processes to be analyzed in a controlled setting. These applications help relate molecular findings to changes in cellular synaptic function.