Patent ID: 8932866
Filing Date: 2015-01-13
Classification: G01N,Y10T

Abstract:
1. A method for diagnosing a gastroenterological cancer, comprising: treating blood collected from a subject such that sugar chains are released from a glycoprotein included in the blood; purifying the sugar chains released from the glycoprotein such that purified sugar chains are obtained; detecting at least one sugar chain which indicates presence of gastroenterological cancer in the purified sugar chains; and diagnosing the gastroenterological cancer in the subject based on an amount of the at least one sugar chain detected in the purified sugar chains, wherein the detecting comprises detecting an N-linked sugar chain which shows a peak at a mass-to-charge ratio of one of 2521, 2216, 2054, 2681, 3108, and 2695 when mass spectrometry is conducted with a MALDI-TOF-MS analyzer in a positive ion mode using a matrix solution comprising 2,5-dihydroxybenzoic acid.