30 -8 (82) 2025 - Azimova S.B., Khidirova S.H. - THE SIGNIFICANCE OF LCT GENE C/T-13910 POLIMORPHISM GENOTYPES IN THE DEVELOPMENT OF LACTOSE INTOLERANCE SYMPTOMS AND CHANGES IN INTESTINAL MICROFLORA
THE SIGNIFICANCE OF LCT GENE C/T-13910 POLIMORPHISM GENOTYPES IN THE DEVELOPMENT OF LACTOSE INTOLERANCE SYMPTOMS AND CHANGES IN INTESTINAL MICROFLORA
Azimova S.B. - Tashkent State Medical University
Khidirova S.H. - Samarkand State Medical University
Resume
Materials and Methods. A pathomorphological study was conducted based on venous blood samples taken from 90 pediatric patients, aged under one year and of preschool age, who were diagnosed with lactase enzyme deficiency. The collected blood samples were analyzed using the PCR diagnostic method, and the obtained results were processed using statistical analysis methods. Conclusion. Morphological studies of patients with lactose intolerance allow for the evaluation of the activity of the enzyme produced by small intestinal enterocytes according to different genotypic variants. Additionally, they enable the examination of changes in normal intestinal microflora associated with those genotypic variants.
Keywords: bifidobacteria; hypolactasia; lactase-phlorizin hydrolase; beta-galactosidase; galactooligosaccharides.
First page
167
Last page
173
For citation:Azimova S.B., Khidirova S.H. - THE SIGNIFICANCE OF LCT GENE C/T-13910 POLIMORPHISM GENOTYPES IN THE DEVELOPMENT OF LACTOSE INTOLERANCE SYMPTOMS AND CHANGES IN INTESTINAL MICROFLORA//New Day in Medicine 8(82)2025 167-173 https://newdayworldmedicine.com/en/new_day_medicine/8-82-2025
List of References
- Gaucheron, F. Milk and Dairy Products: A Unique Micronutrient Combination. J. Am. Coll. Nutr. 2011, 30, 400S–409S. [Google Scholar] [CrossRef] [PubMed]
- Oftedal, O.T. The Evolution of Milk Secretion and Its Ancient Origins. Animal 2012, 6, 355–368. [Google Scholar] [CrossRef] [PubMed]
- Misselwitz, B.; Butter, M.; Verbeke, K.; Fox, M.R. Update on Lactose Malabsorption and Intolerance: Pathogenesis, Diagnosis and Clinical Management. Gut 2019, 68, 2080–2091. [Google Scholar] [CrossRef]
- Silanikove, N.; Leitner, G.; Merin, U. The Interrelationships between Lactose Intolerance and the Modern Dairy Industry: Global Perspectives in Evolutional and Historical Backgrounds. Nutrients 2015, 7, 7312. [Google Scholar] [CrossRef]
- Gaskin, D.J.; Ilich, J.Z. Lactose Maldigestion Revisited: Diagnosis, Prevalence in Ethnic Minorities, and Dietary Recommendations to Overcome It. Am. J. Lifestyle Med. 2009, 3, 212–218. [Google Scholar] [CrossRef]
- Fassio, F.; Facioni, M.S.; Guagnini, F. Lactose Maldigestion, Malabsorption, and Intolerance: A Comprehensive Review with a Focus on Current Management and Future Perspectives. Nutrients 2018, 10, 1599. [Google Scholar] [CrossRef] [PubMed]
- Troelsen, J.T. Adult-Type Hypolactasia and Regulation of Lactase Expression. Biochim. Biophys. Acta 2005, 1723, 19–32. [Google Scholar] [CrossRef]
- Montgomery, R.K.; Krasinski, S.D.; Hirschhorn, J.N.; Grand, R.J. Lactose and Lactase--Who Is Lactose Intolerant and Why? J. Pediatr. Gastroenterol. Nutr. 2007, 45 (Suppl. S2), S131–S137. [Google Scholar] [CrossRef]
- Gerbault, P.; Liebert, A.; Itan, Y.; Powell, A.; Currat, M.; Burger, J.; Swallow, D.M.; Thomas, M.G. Evolution of Lactase Persistence: An Example of Human Niche Construction. Philos. Trans. R. Soc. B Biol. Sci. 2011, 366, 863. [Google Scholar] [CrossRef]
- Ingram, C.J.E.; Mulcare, C.A.; Itan, Y.; Thomas, M.G.; Swallow, D.M. Lactose Digestion and the Evolutionary Genetics of Lactase Persistence. Hum. Genet. 2009, 124, 579–591. [Google Scholar] [CrossRef]
- Forsgård, R.A. Lactose Digestion in Humans: Intestinal Lactase Appears to Be Constitutive Whereas the Colonic Microbiome Is Adaptable. Am. J. Clin. Nutr. 2019, 110, 273–279. [Google Scholar] [CrossRef] [PubMed]
- Azcarate-Peril, M.A.; Ritter, A.J.; Savaiano, D.; Monteagudo-Mera, A.; Anderson, C.; Magness, S.T.; Klaenhammer, T.R. Impact of Short-Chain Galactooligosaccharides on the Gut Microbiome of Lactose-Intolerant Individuals. Proc. Natl. Acad. Sci. USA 2017, 114, E367–E375. [Google Scholar] [CrossRef] [PubMed]
- Chey, W.; Sandborn, W.; Ritter, A.J.; Foyt, H.; Azcarate-Peril, M.A.; Savaiano, D.A. Galacto-Oligosaccharide RP-G28 Improves Multiple Clinical Outcomes in Lactose-Intolerant Patients. Nutrients 2020, 12, 1058. [Google Scholar] [CrossRef] [PubMed]
- Briet, F.; Pochart, P.; Marteau, P.; Flourie, B.; Arrigoni, E.; Rambaud, J.C. Improved Clinical Tolerance to Chronic Lactose Ingestion in Subjects with Lactose Intolerance: A Placebo Effect? Gut 1997, 41, 632–635. [Google Scholar] [CrossRef] [PubMed]
- Hertzler, S.R.; Savaiano, D.A. Colonic Adaptation to Daily Lactose Feeding in Lactose Maldigesters Reduces Lactose Intolerance. Am. J. Clin. Nutr. 1996, 64, 232–236. [Google Scholar] [CrossRef] [PubMed]
file
download