References
- Scrimshaw N S, Murray E B. Prevalence of lactose maldigestion. Am J Clin Nutr 1988; 48: 1086–98
- Martini M C, Savaiano D A. Reduced intolerance symptoms from lactose consumed during a meal. Am J Clin Nutr 1988; 47: 57–60
- Barr R G, Levine M D, Watkins J B. Recurrent abdominal pain h of childhood due to lactose intolerance. A prospective study. N Engl J Med 1979; 300: 1449–52
- Ceriani R, Galli L, Reali E. The use of H, breath test is assessment of quantitative lactose malabsorption and milk intake. J Pediatr Gastroenterol Nutr 1991; 12: 141–2
- Arvanitakis C, Chen G-H, Folscroft J, Klotz A P. Lactase deficiency–a comparative study of diagnostic methods. Am J Clin Nutr 1977; 30: 1597–602
- Gudmand-Hoyer E, Riis P, Wulff H K. The significance of lactose malabsorption in the irritable colon syndrome. Scand J Gastroenterol 1973; 8: 273–8
- Littman A, Hammond I B. Diarrhea in adults caused by deficiency in intestinal disaccharidases. Gastroenterology 1965; 48: 237
- Newcomer A D, McGill D B, Thomas P J, Hofmann A F. Prospective comparison of indirect methods for detecting lactase e deficiency. N Engl J Med 1975; 193: 1232–5
- Lerch M M, Rieband H-C, Feldberg W, Matern S. Concordance of indirect methods for the detection of lactose malabsorption in diabetic and nondiabetic subjects. Digestion 1991; 48: 81–8
- Metz G, Jenkins D JA, Peters T J, Newman A, Blendis L M. Breath hydrogen as a diagnostic method for hypolactasia. Lancet 1975; i: 1155–7
- Levitt M D. Production and excretion of hydrogen gas in man. N Engl J Med 1969; 281: 122–7
- Bond J H, Levitt M D. Use of pulmonary hydrogen (H2) measurements to quantitate carbohydrate absorption: study of partially gastrectomized patients. J Clin Invest 1972; 51: 1219–25
- Brummer R JM, Armbrecht U, Bosaeus I, Dotevall G, Stock-brügger R W. The hydrogen (H2) breath test. Sampling methods and the influence of dietary fibre on fasting levels. Scand J Gastroenterol 1985; 20: 1007–13
- Flatz G, Kuhnau W, Naftali D. Breath hydrogen test for lactose absorption capacity: importance of timing of hydrogen excretion and of high fasting hydrogen concentration. Am J Clin Nutr 1984; 39: 752–5
- Metz G, Jenkins D JA, Blendis L M. Lactulose-hydrogen (H2) breath test in health and disease. Gut 1976; 17: 397–8
- Douwes A C, Schaap C, Vander Klei-vanMoorsel J M. Hydrogen breath test in schoolchildren. Arch Dis Child 1985; 60: 333–7
- Isokoski M, Jussila J, Sarna S. A simple screening test for lactose malabsorption. Gastroenterology 1972; 62: 28–32
- Arola H, Koivula T, Jokela H, Isokoski M. Simple urinary test for lactose malabsorption. Lancet 1982; ii: 524–5
- Grant J D, Bezerra J A, Thompson S H, Lemen R J, Koldovsky O, Udall J N. Assessment of lactose absorption by measurement of urinary galactose. Gastroenterology 1989; 97: 895–9
- Arola H, Koivula T, Jokela H, Jauhiaincn M, Keyriläinen O, Ahola T, et al. Comparison of indirect diagnostic methods for hypolactasia. Scand J Gastroenterol 1988; 23: 351–7
- Arola H, Koivula T, Jokela H, Jauhiainen M, Keyriläinen O, Uusitalo A, et al. Strip test is reliable in common prevalences of hypolactasia. Scand J Gastroenterol 1987; 22: 509–12
- Goresky C A, Bach G G, Nadeau B E. On the uptake of materials by the intact liver: the transport and net removal of galactose. J Clin Invest 1973; 52: 991–1009
- Schoeller D A, Schneider J F, Solomons N W, Watkins J B, Klein P D. Clinical diagnosis with the stable isotope 3C in CO2 breath tests: methodology and fundamental considerations. J Lab Clin Med 1977; 90: 412–21
- Ghoos Y, Vantrappen G, Rutgeers P, Eggermont E, Carchon H. The 13C lactose breath test using naturally labeled lactose for the diagnosis of lactose malabsoption. Gastroenterology 1986; 90: 1426
- Hiele M, Ghoos Y, Rutgeers P, Vantrappen G, Carchon H, Eggermont E. 13CO2 breath test using naturally 13C-enriched lactose for detection of lactase deficiency in patients with gastrointestinal symptoms. J Lab Clin Med 1988; 112: 193–200
- Pressman J H, Hofmann A F, Witztum K F, Gertler S L, Ste-Inbach J H, Stokes K, et al. Limitations of indirect methods of estimating small bowel transit time in man. Dig Dis Sci 1987; 32: 689–99
- Dahlqvist A. β-Galactosidase (lactase). Methods of enzymatic analysis; vol IV. Esterases, gly-cosidases. lyases, ligases, H U Bergmeyer. VerlagChemic, Weinheim 1984; 227–30
- Protein Advisory Group. Low lactase activity and milk intake. PAG Bull 1972; 2: 9–10
- Kern F, Struthers J E. Lactase deficiency and lactose intolerance in adults. JAMA 1966; 195: 927–30
- Asp N-G, Berg N O, Dahlqvist A, Jussila J, Salmi H. The activity of three different small-intestinal β-galactosidases in adults with and without lactase deficiency. Scand J Gastroenterol 1971; 6: 755–62
- Welsh J D, Poley J R, Bhatia M, Stevenson D E. Intestinal dis-accharidasc activities in relation to age. race, and mucosal damage. Gastroenterology 1978; 75: 847–55
- Van Krugten M, Brummer R JM, Ruygers A, Stockbriigger R W. Comparison of different methods of assessing lactose malabsorption. Neth J Med 1993; 42: A103
- Lloyd M L, Olsen W A. Specific mucosal protein deficiency states. Textbook of gastroenterology, T Yamada. Lippincott, Philadelphia 1991; 1522
- Drossman D A. Manual of gastroenterologic procedures. 2nd edn. Raven Press, New York 1987; 249
- Bateson, Bouchier. Clinical investigations in gastroenterology. Kluwer, Dordrecht/Boston/London 1988; 63