Abstract: A novel serological target marker GP73 used for diagnosing and identifying a simple fatty liver and steatohepatitis in populations with fatty liver and a detection application method thereof. The serological target marker GP73 and the application thereof can replace golden standard liver puncture to identify and diagnose the simple fatty liver and steatohepatitis in populations with fatty liver, reduce the detection pain of a patient, and have an extremely high clinical application value in clinically identifying and diagnosing the simple fatty liver and steatohepatitis in the populations with fatty liver and assisting the treatment of the simple fatty liver and steatohepatitis.

Abstract: Disclosed are a composition and system for separating and detecting an alpha-fetoprotein variant, comprising a separation reagent and a detection reagent; a system for separating and detecting an alpha-fetoprotein variant and a use thereof; and a kit for separating and detecting the alpha-fetoprotein variant. By means of the composition and system for separating and detecting the alpha-fetoprotein variant, and the use thereof, primary liver cancer can be indicated early on, the sensitivity is high, and the method is rapid, simple and automated.