Nerve Lesion Models
Nerve Lesion Models - Related Videos
05:51
A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
0 Views •
Cited by 13 •
2014
Atherosclerosis is a chronic inflammatory process. This manuscript illustrates an easy to use ex vivo model to investigate fresh carotid or coronary artery plaques. The ex vivo model allows for the investigation of potential substances on the inflammatory milieu in human atherosclerotic lesions and results can be analyzed by various methods.
06:49
Visual Evoked Potential Recording in a Rat Model of Experimental Optic Nerve Demyelination
0 Views •
Cited by 14 •
2015
Focal demyelination is induced in the optic nerve using lysolecithin microinjection. Visual evoked potentials are recorded via skull electrodes implanted over the visual cortex to examine the signal conduction along the visual pathway in vivo. This protocol details the surgical procedures underlying electrode implantation and optic nerve microinjection.
08:06
Murine Model for Parkinson's Disease: from 6-OH Dopamine Lesion to Behavioral Test
0 Views •
Cited by 57 •
2010
Parkinson disease is caused by loss of dopaminergic innervation to the striatum, which can be experimentally induced by 6-OH-dopamine. We describe how to perform a stereotaxic lesion and to monitor apomorphine-induced rotational behavior in mice. This model is useful and reliable for testing new therapies for Parkinson disease.
03:13
Construction of a Composite Regenerative Peripheral Nerve Interface in a Rat Model of Nerve Injury
0 Views •
2025
Source: Svientek, S. R., et al. Fabrication of the Composite Regenerative Peripheral Nerve Interface (C-RPNI) in the Adult Rat. J. Vis. Exp. (2020).This video demonstrates the surgical construction of a composite regenerative peripheral nerve interface (C-RPNI) in a rat model of peripheral nerve injury. The procedure involves attaching a transected peroneal nerve to a muscle graft and overlaying it with a dermal skin graft to promote nerve regeneration. Over time, motor and sensory neurons...
03:34
Inducing a Facial Nerve Injury in a Rat Model
0 Views •
2025
This video demonstrates a surgical protocol on a rat model, detailing steps from anesthesia preparation to facial nerve injury induction. This protocol is useful for studying nerve regeneration and surgical techniques in medical research.
FAQs
These procedures disrupt nerves in different ways, creating defined experimental injury conditions. Crush lesions, transection, and compression can each affect axons, myelin, or supporting tissues, but their resulting patterns of damage and recovery may differ. Comparing them helps researchers examine how the character of an injury influences Wallerian degeneration, inflammation, axonal regeneration, and later functional recovery.
Wallerian degeneration and inflammation represent major biological responses after nerve damage. Degeneration reflects changes associated with disrupted axons, while inflammation forms part of the tissue response to injury. Studying these processes allows investigators to connect the initial lesion with subsequent repair or functional loss and to evaluate whether treatments influence the biological environment that supports recovery.
Nerve lesion models can be assessed through conduction, sensory recovery, and motor function. Conduction provides information about the nerve's ability to transmit signals, whereas sensory and motor measures address functional consequences for sensation and movement. Considering these outcomes together helps distinguish biological repair from meaningful restoration of nerve performance.
The lesion type determines which aspects of nerve damage and repair can be examined under controlled conditions. A study focused on axonal disruption may use a different defined injury from one examining compression or damage involving myelin and supporting tissues. Matching the model to the intended mechanism improves interpretation of regeneration, functional loss, and treatment effects.
A typical study selects a defined nerve injury, applies a procedure such as crush, transection, or compression, and then examines biological and functional consequences. Investigators can follow degeneration, inflammation, and axonal regeneration while measuring conduction, sensory recovery, or motor function. This workflow connects the experimental lesion with outcomes relevant to nerve repair.
Researchers use these models when they need to test interventions intended to improve nerve repair or restore function. The overview identifies nerve grafts, biomaterials, rehabilitation strategies, and drug treatments as relevant applications. By comparing recovery measures after a defined lesion, investigators can examine whether an intervention improves conduction, sensory recovery, motor function, or regenerative responses.
Their value lies in linking controlled injury mechanisms with outcomes that matter clinically, including neural damage, functional loss, and recovery. Findings from these systems can inform research on diagnosis and treatment while guiding evaluation of grafts, biomaterials, rehabilitation, and drugs. Careful model selection strengthens the connection between experimental observations and efforts to improve recovery after nerve injury.