title: [The relationship between content of substance P, VIP in pharyngeal tissue and narrow pharyngeal cavity of patients with OSAS].
abstract: OBJECTIVE
  To investigate the relationship between content of substance P, VIP in the pharyngeal tissue and narrow pharyngeal cavity of patients with OSAS.
  
  
  METHODS
  By using semi-quantitative immunohistochemical method, resected pharyngeal tissue from 30 patients with OSAS and 12 normal health adult controls were investigated with rabbit anti-substance P and rabbit anti-VIP.
  
  
  RESULTS
  SP and VIP were detected in tribution within the epithelium or between epithelium cells, around the pharyngeal glands and gland ducts, around endothelium cells and smooth muscle of blood vessels. SP and VIP levels in pharyngeal tissue of the patients with OSAS were increased than those of the controls.
  
  
  CONCLUSIONS
  Narrow of pharyngeal cavity with OSAS was relative to edema of pharyngeal tissue induced by increased SP and VIP in pharyngeal tissue. A neurogenic inflammation was one of the factors of OSAS.
authors.affiliation: Department of Otorhinolaryngology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037.
authors.forename: H
authors.initials: H
authors.lastname: Li
authors.forename: X
authors.initials: X
authors.lastname: Meng
authors.forename: H
authors.initials: H
authors.lastname: Yang
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010608:Pharyngeal Diseases / Q000473:pathology*; D020181:Sleep Apnea, Obstructive / Q000378:metabolism* / Q000473:pathology; D013373:Substance P / Q000378:metabolism*; D014660:Vasoactive Intestinal Peptide / Q000378:metabolism*
chemical_list: D013373:Substance P; D014660:Vasoactive Intestinal Peptide