Low PG I/II ratio as a marker of atrophic gastritis: Association with nutritional and metabolic status in healthy people

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A low pepsinogen (PG) I/II ratio can be used to detect atrophic gastritis (AG). Recent research has found that the PG I/II ratio is associated with several nutritional and metabolic disorders. The aim of this study is to investigate the relationship between the PG I/II ratio and biochemical markers in a Chinese population.

In total, 1896 participants in a gastric cancer screening program underwent a health screening test that included assessment of serum pepsinogens. Subjects with PG I/II < 3.0 were considered as having atrophic gastritis. Associations between the PG I/II ratio and biochemical markers reflecting glucose and lipid metabolism, liver, kidney and thyroid functions were evaluated using SPSS software version 20.

The prevalence of atrophic gastritis was 5.3% and increased with age but did not differ between sexes. Albumin, ferritin, and total and direct bilirubin were significantly lower in patients with AG than in those without AG, whereas age, total bile acid, and amylase were significantly higher. Albumin, ferritin, and triglyceride correlated positively with the PG I/II ratio, while age, total bile acid, blood urea nitrogen, amylase, aspartate aminotransferase, creatine kinase, and lactate dehydrogenase correlated inversely with the PG I/II ratio. Logistic regression analysis demonstrated that age, total bile acid, total protein, and ferritin correlated independently with AG.

Low PG I/II ratio is not only a marker of atrophic gastritis but also an indicator of nutritional and metabolic status. Special attention should be paid to the metabolism of iron, protein, and bile acid in patients with a low PG I/II ratio.

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