Table 1.

Characteristics of the gastritis patients and healthy volunteers selected for serum exosomes extraction

	No.	Age (years)	Gender	Dyspeptic symptoms	Chronic gastritis	H. pylori infection	Treatment before diagnosis
Gastritis patients	1	6	F	Yes	Severe	Positive	No
	2	7	M	Yes	Severe	Positive	No
	3	6	F	Yes	Severe	Positive	No
	4	7	M	Yes	Severe	Positive	No
	5	8	M	Yes	Severe	Positive	No
Healthy volunteers	1	6	M	No	No	Negative	No
	2	7	F	No	No	Negative	No
	3	7	M	No	No	Negative	No

M = male; F = female.