Spinal Dorsal Horn Lamina Ii (Substantia Gelatinosa) Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Lamina II of the spinal dorsal horn, also known as the substantia gelatinosa, contains a complex network of interneurons that process nociceptive (pain) and thermoreceptive information. These neurons are critical for pain perception, modulation, and the transition from acute to chronic pain.
| Property | Value |
|---|---|
| Cell Type | Interneurons (Excitatory, Inhibitory) |
| Brain Region | Spinal Cord Dorsal Horn, Lamina II |
| Neurotransmitter | Glutamate (excitatory), GABA/glycine (inhibitory) |
| Primary Function | Pain signal processing, modulation, and transmission |
Lamina II neurons receive input from nociceptive Aδ and C fibers, process pain intensity, location, and quality.
Inhibitory interneurons provide presynaptic and postsynaptic inhibition, shaping the pain signal.
Excitatory interneurons can undergo activity-dependent plasticity, contributing to hyperalgesia and allodynia.
Inhibitory neurons in lamina II modulate the "gate" for pain transmission to projection neurons in lamina I.
Single-cell RNAseq identifies lamina II subtypes:
The study of Spinal Dorsal Horn Lamina Ii (Substantia Gelatinosa) Neurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
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