Olfactory Dysfunction of Rhinosinusitis - Cyclic Adenosine Monophosphate (cAMP)/Calcium Signaling Study
Olfactory Dysfunction of Rhinosinusitis - Cyclic Adenosine Monophosphate (cAMP)/Calcium Signaling Study
The study examines the biochemistry underlying human olfaction in both normal and diseased
 states.

 The study aims are: 1. to determine the levels of cAMP in olfactory tissue from people with
 chronic rhinosinusitis and other nasal disorders. 2. to correlate preoperative olfactory
 function with cAMP levels from biopsied olfactory tissue. 3. to determine odorant and
 pheromone-mediated activation of cultured human olfactory sensory neurons using calcium
 imaging and 4. to determine odorant and pheromone-mediated activation of cultured human
 olfactory sensory neurons using "smell-chip" technology.
Subject will be recruited from those scheduled to have endoscopic sinus surgery and similar
 procedures. This study uses the tissue that would normally be discarded during the surgical
 process. The tissue is cultured and frozen for purposes of the following testing:

 odor detection and signal transduction, cyclic adenosine monophosphate and odor detection,
 the role of cAMP in olfactory dysfunction, and pheromone detection.

 Only tissue that would normally be discarded during the course of the surgery will be used.
 The study does not interfere with or change any clinical care.
Inclusion Criteria:

 -  Subjects will be 18 years old and over and scheduled for one of the following:

 -  endoscopic sinus surgery for chronic sinusitis

 -  endoscopic transnasal approach to the pituitary for pituitary tumor removal

 -  endoscopic inferior turbinectomy or septoplasty for nasal congestion

 -  endoscopic repair of cerebrospinal fluid (CSF) leaks

 Exclusion Criteria:

 -  Subjects are excluded if they are unable to give informed consent or unable to
 complete self-administered questionnaires due to English language barrier, cognitive
 impairment, or severe medical conditions