References
- Ogata H, Aoyagi N, Kaniwa N, Ejima A, Suzuki K, Ishioka T, Development and evaluation of a new peroral test agent GA-test for assessment of gastric acidity. J Pharmacobiodyn 1984;7:656–64.
- Russell TL, Berardi RR, Barnett JL, Dermentzoglou LC, Jarvenpaa KM, Schmaltz SP, Upper gastrointestinal pH in seventy-nine healthy, elderly, North American men and women. Pharm Res 1993;10:187–96.
- Fujisawa T, Kumagai T, Akamatsu T, Kiyosawa K, Matsunaga Y. Changes in seroepidemiological pattern of Helicobacter pylori and hepatitis A virus over the last 20 years in Japan. Am J Gastroenterol 1999;94:2094–9.
- Asaka M, Kimura T, Kudo M, Takeda H, Mitani S, Miyazaki T, Relationship of Helicobacter pylori to serum pepsinogens in an asymptomatic Japanese population. Gastroenterology 1992;102:760–6.
- Ogata H, Aoyagi N, Kaniwa N, Ejima A, Sekine N, Kitamura M, Gastric acidity dependent bioavailability of cinnarizine from two commercial capsules in healthy volunteers. Int J Pharm 1986;29:113–20.
- Aoyagi N, Ogata H, Kaniwa N, Ejima A. Bioavailability of indomethacin capsules in humans. (I): Bioavailability and effects of gastric acidity. Int J Clin Pharmacol Ther Toxicol 1985;23:469–74.
- Shi S, Klotz U. Proton pump inhibitors: an update of their clinical use and pharmacokinetics. Eur J Clin Pharmacol 2008;64:935–51.
- Furuta T, Ohashi K, Kosuge K, Zhao XJ, Takashima M, Kimura M, CYP2C19 genotype status and effect of omeprazole on intragastric pH in humans. Clin Pharmacol Ther 1999;65:552–61.
- Shirai N, Furuta T, Moriyama Y, Okochi H, Kobayashi K, Takashima M, Effects of CYP2C19 genotypic differences in the metabolism of omeprazole and rabeprazole on intragastric pH. Aliment Pharmacol Ther 2001;15:1929–37.
- Wilkinson GR. Drug metabolism and variability among patients in drug response. N Engl J Med 2005;352:2211–21.
- Kay AW. Effect of large doses of histamine on gastric secretion of HCI; an augmented histamine test. Br Med J 1953;2:77–80.
- Johnston D, Jepson K. Use of pentagastrin in a test of gastric acid secretion. Lancet 1967;2:585–8.
- Brooks FP. Tests related to the stomach. In Bockus HL, editors. Gastroenterology. 4th ed. Philadelphia, PA: WB Saunders Co.; 1985. pp 367–77.
- Braden B, Lembcke B, Kuker W, Caspary WF. 13C-breath tests: current state of the art and future directions. Dig Liver Dis 2007;39:795–805.
- Kato M, Saito M, Fukuda S, Kato C, Ohara S, Hamada S, 13C-Urea breath test, using a new compact nondispersive isotope-selective infrared spectrophotometer: comparison with mass spectrometry. J Gastroenterol 2004;39:629–34.
- Sugiyama E, Kikuchi A, Inada M, Sato H. The use of 13C-erythromycin as an in vivo probe to evaluate CYP3A-mediated drug interactions in rats. J Pharm Sci 2011;100:3995–4005.