title: [Changes in serum anti-Helicobacter pylori IgG antibody, pepsinogen I, and pepsinogen II after eradication therapy of Helicobacter pylori].
abstract: To investigate the changes in serum anti-Helicobacter pylori IgG antibody (HP Ab), pepsinogen I (PG I), pepsinogen II (PG II), and pepsinogen I/II ratio (PG I/II) after eradication therapy of Helicobacter pylori (HP), we studied 78 patients with HP-positive peptic diseases. They received combination therapy (proton pump inhibitor + amoxicillin: n = 17, proton pump inhibitor + amoxicillin + clarithromycin: n = 61). In the 68 patients in whom HP was eradicated, HP Ab, PG I, and PG II decreased and PG I/II increased significantly after eradication. Especially, the decrease in PG II and the increase in PG I/II were rapid and remarkable, found 2 months after the beginning of eradication therapy, and then continued. On the other hand, in the patients in whom HP was not eradicated, HP Ab and PG I/II did not change significantly, while PG I and PG II temporarily increased at the end of administration of proton pump inhibitor. In conclusion, it seems that the measurement of PG II and PG I/II is useful for the early detection of HP eradication.
authors.affiliation: Department of Internal Medicine, Toyama Rosai Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Ando
authors.forename: T
authors.initials: T
authors.lastname: Kagaya
authors.forename: Y
authors.initials: Y
authors.lastname: Takemori
authors.forename: Y
authors.initials: Y
authors.lastname: Noda
mesh_terms: D000658:Amoxicillin / Q000008:administration & dosage; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D000907:Antibodies, Bacterial / Q000378:metabolism*; D017291:Clarithromycin / Q000008:administration & dosage; D004359:Drug Therapy, Combination / Q000008:administration & dosage; D005260:Female; D016481:Helicobacter Infections / Q000188:drug therapy / Q000201:enzymology* / Q000276:immunology; D016480:Helicobacter pylori / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D010406:Penicillins / Q000008:administration & dosage; D010435:Pepsinogens / Q000378:metabolism*; D010437:Peptic Ulcer / Q000188:drug therapy / Q000201:enzymology* / Q000276:immunology; D054328:Proton Pump Inhibitors
chemical_list: D000900:Anti-Bacterial Agents; D000907:Antibodies, Bacterial; D007074:Immunoglobulin G; D010406:Penicillins; D010435:Pepsinogens; D054328:Proton Pump Inhibitors; D000658:Amoxicillin; D017291:Clarithromycin