Differential Proteomics of Helicobacter pylori Associated with Autoimmune Atrophic Gastritis

Table 1 Characteristics of the patients affected by AAG, from whom HP strains were isolated.

Patient number	Age	Sex	PGI	PGII	PGI/PGII	Gastrin 17	Ab anti-HP	HP histology	Ab anti-PC	Atrophy^a	Stomach location^b
1	70	F	22.3	17.4	1.28	103.8	87.9	−	ND	1	Antrum
2	37	F	25	7.26	3.44	40	6.5	−	+	2	Corpus
3	42	F	14.8	10.9	1.36	350.8	100.8	+	+	3	Corpus
4^c	40	F	107.5	10.3	10.44	2.31	97.8	−	+	0	Antrum and corpus

Ab anti-HP antibodies against anti-HP; Ab anti-PC, antibodies against parietal cells; anti-HF? antibodies against HP; ND, not determined; PGI, serum pepsinogen I; PGII, serum pepsinogen II.
^aAtrophy scores according to operative link for gastritis assessment (OLGA) system (adapted considering only a simple sample of antral biopsy).
^bStomach location refers to the biopsies from which HP strains were isolated.
^cPatient at the first visit without atrophy, but with increasing anti-PC Ab (levels increasing from 1:160 to 1:1,280 after 1 month) and still under follow-up.

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