Stability of cough reflex sensitivity during viral upper respiratory tract infection (common cold)

Peter Vytautas Dicpinigaitis, Amit S. Tibb, David L. Ramsey, Andrew N. Carr, Cathy L. Poore

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Cough is among the symptoms most commonly associated with an acute, viral upper respiratory tract infection (URI), such as the common cold. Two previous studies incorporating capsaicin cough challenge methodology have demonstrated that cough reflex sensitivity is transiently enhanced during URI. These studies used single measurements of cough reflex sensitivity during the URI period. To our knowledge, no previous studies have included multiple measurements of cough reflex sensitivity to capsaicin during a URI to evaluate the stability of this measure during the acute viral illness.In the current methodological investigation, we performed capsaicin cough challenges in 42 subjects with URI who were otherwise healthy, adult, nonsmokers (25 female). Subjects were enrolled within 72h of onset of illness and randomly assigned to 3 groups (n=14 each) that underwent cough reflex sensitivity measurement (C2 and C5) at days 0 and 1 for group 1; days 2 and 3 for group 2; or days 4 and 5 for group 3. Each subject returned 4-8 weeks post-viral infection to establish a healthy baseline measurement (recovery).Our results support that cough reflex sensitivity to capsaicin, as measured by C5, is a sensitive measure that remains stable during 6 days of a URI. These results suggest that cough reflex sensitivity measures in the presence of a URI provide a sensitive and reproducible approach that could be used in future investigations seeking to test experimental antitussive therapies.

Original languageEnglish (US)
Pages (from-to)154-157
Number of pages4
JournalPulmonary Pharmacology and Therapeutics
Volume28
Issue number2
DOIs
StatePublished - 2014

Fingerprint

Common Cold
Capsaicin
Cough
Respiratory Tract Infections
Reflex
Antitussive Agents
Recovery
Investigational Therapies
Virus Diseases

Keywords

  • Antitussive
  • Capsaicin
  • Common cold
  • Cough
  • Upper respiratory tract infection

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Pharmacology (medical)
  • Biochemistry, medical
  • Medicine(all)

Cite this

Stability of cough reflex sensitivity during viral upper respiratory tract infection (common cold). / Dicpinigaitis, Peter Vytautas; Tibb, Amit S.; Ramsey, David L.; Carr, Andrew N.; Poore, Cathy L.

In: Pulmonary Pharmacology and Therapeutics, Vol. 28, No. 2, 2014, p. 154-157.

Research output: Contribution to journalArticle

Dicpinigaitis, Peter Vytautas ; Tibb, Amit S. ; Ramsey, David L. ; Carr, Andrew N. ; Poore, Cathy L. / Stability of cough reflex sensitivity during viral upper respiratory tract infection (common cold). In: Pulmonary Pharmacology and Therapeutics. 2014 ; Vol. 28, No. 2. pp. 154-157.
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