References
- Hollox EJ, Swallow DM. Lactase deficiency: biological and medical aspects of the adult human lactase polymorphism. In: King RA, Rotter JI, Motulsky AG, editors. The genetic basis of common diseases.Oxford University Press Oxford: 2002. p. 250–65.
- Enattah NS, Sahi T, Savilahti E, Terwilliger JD, Peltonen L, Jarvela I. Identification of a variant associated with adult-type hypolactasia. Nat Genet 2002;30:233–7.
- Ronaghi MUM, Nyrén P. Real-time pyrophosphate detection for DNA sequencing. Science 1998;281:364–5.
- Fakhrai-Rad H, Pourmand N, Ronaghi M. Pyrosequencing: an accurate detection platform for single nucleotide polymorphisms. Hum Mutat 2002;19:479–85.
- Alderborn A, Kristofferson A, Hammerling U. Determination of single-nucleotide polymorphisms by real-time pyrophosphate DNA sequencing. Genome Res 2000;10:1249–58.
- Berg LM, Sanders R, Alderborn A. Pyrosequencing technology and the need for versatile solutions in molecular clinical research. Expert Rev Mol Diagn 2002;2:361–9.
- Flatz G. Gene-dosage effect on intestinal lactase activity demonstrated in vivo. Am J Hum Genet 1984;36:306–10.
- Koetse HA, Stellaard F, Bijleveld CM, Elzinga H, Boverhof R, van der Meer R. Non-invasive detection of low-intestinal lactase activity in children by use of a combined 13CO2/H2 breath test. Scand J Gastroenterol 1999;34: 35–40.
- Peuhkuri K, Poussa T, Korpela R. Comparison of a portable breath hydrogen analyser (Micro H2) with a Quintron Micro-Lyzer in measuring lactose maldigestion, and the evaluation of a Micro H2 for diagnosing hypolactasia. Scand J Clin Lab Invest 1998;58: 217–24.
- Hiele M, Ghoos Y, Rutgeerts P, Vantrappen G, Carchon H, Eggermont E. 13CO2 breath test using naturally 13 C-enriched lactose for detection of lactase deficiency in patients with gastrointestinal symptoms. J Lab Clin Med 1988;112:193–200.
- Casellas F, Malagelada JR. Applicability of short hydrogen breath test for screening of lactose malabsorption. Dig Dis Sci 2003;48:1333–8.
- Lember M. Assessment of lactose tests. Am Fam Phys 2002;66: 2206–8.
- Strocchi A, Corazza GR, Anania C, Benati G, Malservisi S, Cherchi MV. Quality control study of H2 breath testing for the diagnosis of carbohydrate malabsorption in Italy. The ‘Tenue Club’ Group. Ital J Gastroenterol Hepatol 1997;29:122–7.
- Hermans MM, Brummer RJ, Ruijgers AM, Stockbrugger RW. The relationship between lactose tolerance test results and symptoms of lactose intolerance. Am J Gastroenterol 1997;92:981–4.
- Rosado JL, Solomons NW. Sensitivity and specificity of the hydrogen breath-analysis test for detecting malabsorption of physiological doses of lactose. Clin Chem 1983;29:545–8.
- Gupta SK, Chong SK, Fitzgerald JF. Disaccharidase activities in children: normal values and comparison based on symptoms and histologic changes. J Pediatr Gastroenterol Nutr 1999;28:246–51.
- Arola H. Diagnosis of hypolactasia and lactose malabsorption. Scand J Gastroenterol 1994;29 Suppl 202:26–35.
- Buning C, Ockenga J, Kruger S, Jurga J, Baier P, Dignass A. The C/C(—13910) and G/G(—22018) genotypes for adult-type hypolactasia are not associated with inflammatory bowel disease. Scand J Gastroenterol 2003;38:538–42.