title: The nasal cycle and age.
abstract: CONCLUSIONS
  The reciprocal nature of the nasal cycle declined with age in keeping with other published data, suggesting that studies of the nasal cycle may be a useful measure of central nervous system (CNS) disease and aging.
  
  
  OBJECTIVE
  The aim of this study was to investigate changes in the nasal cycle with age.
  
  
  METHODS
  In one male subject changes in nasal airflow were measured by anterior rhinomanometry to determine the reciprocal nature of the 'nasal cycle' at age 28 and again at age 66 years.
  
  
  RESULTS
  Significant reciprocity was demonstrated in the historical study (age 28 years) with correlation coefficients for the 3 study days of -0.81, -0.83 and -0.79. compared with the current study (age 66 years) where non-significant correlation coefficients of 0.02 and -0.43 were obtained.
authors: Common Cold Centre, Cardiff School of Biosciences, Cardiff University , Cardiff, Wales , UK.
authors: Mark R
authors: MR
authors: Williams
authors: Ronald
authors: R
authors: Eccles
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D000403:Airway Resistance / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000502:physiology*; D025363:Rhinomanometry
keywords: Anterior rhinomanometry; CNS disease; aging; autonomic nervous system; nasal airflow; reciprocal changes; sympathetic control