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Dermatology

Neuroiflammation and Neurogenic Itch in Prurigo Nodularis

Dr. Chovatiya discusses the neuroinflammatory mechanisms of PN.

Raj  Chovatiya
MD, PhD, MSCI
Raj Chovatiya

Learning objectives

  • Understand how pruritogens activate sensory neurons, leading to the itch sensation and the chronic itch-scratch cycle in PN patients
  • Understand how neuro-inflammatory molecules activate neurons, triggering the release of peptide signals and inflammatory cell recruitment, assess how neuronal activation contributes to the formation of pruritic papules and nodules in PN

Description

The discussion explores the mechanism of itch in PN, which originates from a pruritogen triggering sensory neurons in the skin, sending signals to the brain via the spinal column and resulting in the sensation of itch. The focus is on the neuroinflammatory pathway, where neurons interact with skin cells and inflammatory molecules, leading to the chronic itch-scratch cycle that severely affects patients’ quality of life.

MAT-GLB-2402341- 1.0 - 07/2024

About this expert

Dermatology

Raj Chovatiya

MD, PhD, MSCI

Assistant Professor of Dermatology at the Northwestern University Feinberg School of Medicine in Chicago, US

See author’s profile
Raj  Chovatiya

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