Trigeminal Ganglia
Trigeminal Ganglia - Related Videos
02:57
Analyzing Tooth Germ and Trigeminal Ganglia Interactions Using a Microfluidic Co-culture System
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2025
This video demonstrates the utilization of a microfluidic device to study the interactions between tooth germ pulp and trigeminal ganglia. It showcases the placement of tissues inside the microfluidic device and provides a detailed visualization of trigeminal neurite growth toward the tooth germ through the device's microgrooves. Additionally, it highlights the role of tooth-derived molecular factors in promoting or inhibiting neurite extension into the tooth germ pulp, which is crucial for...
07:55
In Vivo Calcium Imaging of Neuronal Ensembles in Networks of Primary Sensory Neurons in Intact Trigeminal Ganglia
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2025
This protocol describes in vivo GCaMP calcium imaging of intact trigeminal ganglion (TG) neurons. This description includes TG exposure surgery, in vivo confocal microscopy imaging of TG neurons, application of somatic stimuli during TG neurons microscopic imaging, and analysis of in vivo GCaMP calcium imaging data.
06:13
Establishing a Co-Culture of Dental Pulp Cells and Trigeminal Neurons for Cross-Communication
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2025
This video showcases a technique for establishing a co-culture of trigeminal neurons and primary dental pulp cells using a transwell filter. In this physically separated condition, mesenchymal cells obtained from dental pulp tissue secrete paracrine signaling molecules that traverse through the pores, promoting the differentiation and migration of neurons towards the mesenchymal cells establishing a co-culture system.
09:35
Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain
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Cited by 8 •
2017
Treating chronic or neuropathic facial pain can be challenging when medical or standard treatment fails. Subcutaneous nerve field stimulation is the least invasive form of neuromodulation and is used for chronic back pain. We applied this technology to treat chronic and neuropathic trigeminal facial pain.
04:01
Isolation of Cells from Sensory Ganglia
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2025
This video demonstrates the isolation of cells from the sensory ganglia of mice. Ganglia are subjected to enzymatic digestion to dissolve the extracellular matrix. Single cells are then collected via filtering through a cell strainer followed by density gradient centrifugation for debris removal. Finally, washing and centrifugation are done to collect the isolated cells for future analysis.
FAQs
Signals entering through branches of the trigeminal nerve are received by pseudounipolar sensory neurons, whose cell bodies reside in the ganglia. Those neurons transmit the information centrally to brainstem nuclei. This organization links sensory input from craniofacial regions with central processing and allows researchers to examine how peripheral stimulation becomes touch, temperature, or pain signaling.
Pseudounipolar neurons provide a direct cellular route between peripheral receptors and central targets. Their structure supports transmission from facial, oral, meningeal, and other head-related inputs toward brainstem nuclei without requiring the cell body to serve as an intermediate relay. Studying these neurons helps clarify how sensory pathways support normal detection and abnormal pain signaling.
Research can focus on several distinct sensory outputs, including touch, temperature, and pain. Because trigeminal pathways collect information from multiple craniofacial regions, investigators can relate these modalities to signals arising in the face, oral cavity, meninges, and parts of the head. This makes the ganglia useful for connecting specific sensory inputs with central nervous system responses.
Abnormal sensory signaling in trigeminal ganglia is relevant to migraine, inflammation, and neuropathic pain. The ganglia therefore provide a setting for investigating cellular mechanisms that may disturb normal craniofacial sensation. Findings can help distinguish ordinary sensory transmission from pathological signaling and support the search for therapeutic strategies that modulate excessive or inappropriate sensory activity.
They offer a focused system for studying the development of sensory neurons associated with craniofacial sensation. Investigators can examine how these neurons relate to peripheral inputs and central brainstem targets while considering the sensory modalities they support. This developmental context complements disease-focused research by linking the organization of mature pathways to their cellular origins.
In headache research, these ganglia help investigators examine cellular mechanisms associated with craniofacial pain, including processes relevant to migraine. Their connections with the meninges and central brainstem pathways make them especially informative for studying how peripheral sensory signals may participate in headache-related signaling and how abnormal activity could be modulated.
Inflammation is one of the contexts in which trigeminal ganglia are studied because inflammatory processes may alter sensory signaling from craniofacial tissues. Examining these pathways helps researchers connect peripheral changes with pain-related communication to the central nervous system. This work contributes to understanding why normally protective sensory signals can become associated with persistent or heightened discomfort.
Studies of these ganglia can identify cellular mechanisms involved in abnormal sensory signaling and thereby suggest potential therapeutic targets. The goal is not simply to block all craniofacial sensation, but to understand signaling changes associated with migraine, inflammation, or neuropathic pain. Such knowledge may guide approaches designed to modulate pathological activity while preserving useful sensory detection.