Gastroesophageal Reflux Clinical Trial
Official title:
Evaluation of MicroRNA Expression in Blood and Cytology Specimens as a Novel Method for Detecting Barrett's Esophagus
The primary purpose of this study is to test new methods to diagnose BE in time before it turns into advanced cancer. Once BE is diagnosed, the current standard of care is to monitor the disease so that complication such as cancer can be diagnosed early. The two new methods the investigators are evaluating are: a) blood test and b) brush test of the food pipe. The investigators will collect blood, bile and cells from the food pipe and stomach and measure for a biomarker called microRNA (miRNA). In the future, measurements of microRNA biomarkers could help the doctors figure out which patients are at increased risk for cancer of the esophagus.
The investigators will collect serum, bile and esophageal cells (using cytology devices) from consenting subjects. The investigators have previously identified BE specific miRNA that will be tested on the cytology specimens. These are miRNAs -192-5p, -215-5p and -194-5p. The investigators have also identified serum microRNAs in whole serum and exosomes by sequencing to study further. The investigators will also evaluate miRNA expression within biliary exosomes for the first time in patients with reflux related diseases. ;
Observational Model: Case Control, Time Perspective: Prospective
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