Wide Dynamic Range (Wdr) Neurons is an important cell type in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Wide Dynamic Range (WDR) neurons, also known as multireceptive neurons, are a critical class of neurons located in the dorsal horn of the spinal cord. These neurons play a fundamental role in pain processing and sensory integration, receiving convergent input from both nociceptive (pain) and non-nociceptive (touch, temperature) sensory afferents. WDR neurons are essential for translating peripheral sensory stimuli into pain perception and are implicated in various neurodegenerative conditions affecting sensory pathways. [1]
WDR neurons are the primary neuronal population responsible for encoding the intensity of noxious stimuli. Their key characteristics include: [2]
Beyond pain, WDR neurons integrate multiple sensory modalities: [3]
WDR neurons may be affected in AD through several mechanisms: [4]
In PD, WDR neuron function is impacted by: [5]
WDR neuron sensitization is central to: [6]
WDR neuron activity is studied through: [7]
Drugs targeting WDR neurons include:
NMDA Receptor Antagonists: Ketamine, magnesium
Gabapentinoids: Gabapentin, pregabalin (reduce presynaptic glutamate release)
Opioids: Act on both presynaptic and postsynaptic opioid receptors
Pain Processing — Central pain mechanisms
The study of Wide Dynamic Range (Wdr) 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.
Fields, H.L. & Basbaum, A.I. (1999). Central Nervous System Mechanisms of Pain Modulation. 1999. ↩︎
Woolf, C.J. & Mannion, R.J. (1999). Neuropathic Pain: Aetiology, Symptoms, Mechanisms, and Management. 1999. ↩︎
Sandkühler, J. (2000). Learning and Memory in Pain Pathways. 2000. ↩︎
Ji, R.R. et al. (2003). Central Sensitization and MAPK Activation. 2003. ↩︎
Latremoliere, A. & Woolf, C.J. (2009). Central Sensitization: A Generator of Pain Hypersensitivity by Central Neural Plasticity. 2009. ↩︎
Kuner, R. (2010). Central Mechanisms of Pathological Pain. 2010. ↩︎
Millan, M.J. (1999). The Induction of Pain: An Integrative Review. 1999. ↩︎