Hippocampal Brain Slices
Hippocampal Brain Slices - Related Videos
02:55
Obtaining Horizontal Mouse Hippocampal Brain Slices
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2025
This video demonstrates a detailed protocol for preparing horizontal hippocampal brain slices from mice, focusing on preserving the integrity of hippocampal fiber pathways. The process involves carefully bisecting and securing the brain, using a vibratome for slicing, and maintaining optimal tissue conditions with a carbogenated fluid, resulting in hippocampal brain slices ready for further experimentation.
08:20
Organotypic Hippocampal Slice Cultures
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Cited by 52 •
2011
We describe a method to prepare organotypic hippocampal slices that can be easily adapted to other brain regions. Brain slices are laid on porous membranes and culture media is allowed to form an interface. This method preserves the gross architecture of the hippocampus for up to 2 weeks in culture.
08:59
Horizontal Hippocampal Slices of the Mouse Brain
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Cited by 12 •
2020
This article aims to describe a systematic protocol to obtain horizontal hippocampal brain slices in mice. The objective of this methodology is to preserve the integrity of hippocampal fiber pathways, such as the perforant path and the mossy fiber tract to assess dentate gyrus related neurological processes.
07:44
Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
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Cited by 31 •
2017
A protocol for accurately identifying and analyzing synapses in hippocampal slices using immunofluorescence is outlined in this article.
05:43
Single Cell Electroporation in Organotypic Brain Slice Cultures: An In Vitro Technique to Deliver Plasmids Inside Targeted Neurons in Brain Hippocampal Slices
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2025
This video demonstrates the protocol for single-cell electroporation of genes in both excitatory and inhibitory neurons across a range of in vitro hippocampal slice cultures. The technique is useful to examine specific molecular and physiological functions of neurons, including cell autonomous mechanisms and transsynaptic protein interactions.
FAQs
Maintaining local circuit organization allows investigators to link a defined perturbation to a neuronal response. Functionally active neurons and synapses can receive electrical or chemical stimulation, after which researchers record changes in synaptic transmission or plasticity. This controlled relationship is especially useful for examining long-term potentiation, where experimental changes in circuit responses can be studied under defined conditions.
Oxygenated artificial cerebrospinal fluid provides the maintenance environment specified for hippocampal slices. Its use supports continued neuronal and synaptic activity during experimental manipulation, so recorded responses reflect circuit function under selected conditions. This requirement is central when investigators stimulate the tissue or test chemical effects directly.
Long-term potentiation is valuable because it gives investigators a measurable form of synaptic plasticity to examine in a controlled hippocampal circuit. By applying stimulation and recording the resulting response, researchers can investigate how synaptic transmission changes rather than only describing anatomical organization. This makes the preparation relevant to neuroscience questions about mechanisms associated with learning and memory.
An experiment begins by preparing either an acute or cultured hippocampal slice and maintaining it in oxygenated artificial cerebrospinal fluid. Investigators then apply an electrical or chemical stimulus and record the neuronal or synaptic response. This sequence separates tissue maintenance, controlled perturbation, and measurement, enabling comparisons across defined experimental conditions.
They are useful when researchers need direct access to hippocampal circuits under controlled conditions. Applications described for this preparation include studying learning and memory mechanisms, modeling neurological disease, and testing how drugs or genetic changes alter neuronal function. The same experimental logic can connect a selected treatment or alteration with changes in synaptic or circuit responses.
Recordings can reveal changes in synaptic transmission, synaptic plasticity, long-term potentiation, and circuit connectivity. These outcomes help investigators determine how electrical or chemical stimulation affects the preserved hippocampal circuitry, or how a drug or genetic change modifies neuronal function. Interpretation therefore focuses on functional responses produced under the experiment’s defined conditions.