Method of diagnosis of gastroduodenal inflammatory chronic affections to children

The invention refers to medicine, in particular, to the clinical immunology and gastroenterology. Summary of the invention consists in, that one makes a saliva intake during 10 min, an hour after a meal. The obtained intake is centrifuged during 20 min at 1500 g. Thereafter, one separates a supernatant and determines the IgA, secretory IgA and IgG concentration therein by the method of radial immunodiffusion into the gel. When the IgA concentration is 0,11...0,13 g/L, the secretory IgA - 0,67...0,77 g/L and IgG - 0,37...0,45 g/L, one diagnosticates the chronical gastroduodenitis, if the IgA concentration is in the range of 0,16...0,33 g/L, the secretory IgA - 1,03...1,21 g/L and the IgG - 0,49...0,62 g/L, one diagnosticates the erosive-ulcerous, affection of the gastroduodenal mucose. The result of the invention consists in revealing the indice reflecting the character of the gastroduodenal mucose affection. Claims: 1