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Clinical significance：

Changes in the concentration of G-17 can be used to identify different types of atrophic gastritis.Elevated levels of G-17 are suggestive of atrophic gastritis in the elderly, gastric cancer, atrophic gastric body gastritis, functional dyspepsia in the elderly, and duodenal bulb ulcers.

Decreased G-17 levels suggestive of atrophic gastric sinus gastritis, multifocal atrophy of the whole stomach.

Main clinical applications：

1. Responds to high or low stomach acid;

2.Suggests the location, extent and risk of gastric mucosal atrophy;

3.Guidance on the rational use of medications, such as proton pump preparations (PPIs) and nonsteroidal anti-inflammatory drugs (NSAIDs).

Applicable departments: 

Endoscopy Center, Gastroenterology, Physical Examination Center, etc.