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Relevant bibliographies by topics / Lactase gene (LCT)

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Academic literature on the topic 'Lactase gene (LCT)'

Author: Grafiati

Published: 24 April 2022

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Journal articles on the topic "Lactase gene (LCT)"

1

Płoszaj, Tomasz, Krystyna Jędrychowska-Dańska, and Henryk Witas. "Frequency of lactase persistence genotype in a healthy Polish population." Open Life Sciences 6, no. 2 (2011): 176–79. http://dx.doi.org/10.2478/s11535-010-0114-1.

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AbstractThe majority of mammals are unable to digest lactose due to post-weaning deactivation of the LCT gene, which is responsible for encoding the enzyme lactase (i.e., adult-type hypolactasia). A substitution of C with T at position −13910 bp upstream of the LCT gene has been linked to the lactase persistence phenotype in European populations. We investigated the frequency of LCT-13910C>T polymorphism in 223 blood donors from central Poland. All samples were genotyped by polymerase chain reaction and direct sequencing. The LCT-13910 T allele (lactase persistence) was present in 51% of in

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2

Bogdanova, N. M., A. I. Khavkin, and O. L. Kolobova. "Prospects of fermented milk products in children with primary hypolactasia of the adult type." Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics) 65, no. 3 (2020): 160–68. http://dx.doi.org/10.21508/1027-4065-2020-65-3-160-168.

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Lactose (β-galactosyl-1,4 glucose) is milk sugar, the main disaccharide of human and other mammalian breast milk. Lactase is intestinal disaccharidase that catalyzes the lactose hydrolysis. The lactase gene LCT controls biological function of the enzyme. The age-related genetically determined feature of disaccharide expression, epigenetic factors, and natural selection with persistent tolerance to milk sugar throughout lifetime has divided the human population according to the LCT gene into two phenotypes: lactase persistent and lactase non-persistent. There is conflicting evidence that the la

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3

Goda, T., H. Yasutake, Y. Suzuki, S. Takase, and O. Koldovsky. "Diet-induced changes in gene expression of lactase in rat jejunum." American Journal of Physiology-Gastrointestinal and Liver Physiology 268, no. 6 (1995): G1066—G1073. http://dx.doi.org/10.1152/ajpgi.1995.268.6.g1066.

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To explore the mechanisms by which jejunal lactase activity is modified by carbohydrate and/or fat intake, mRNA levels and the absolute synthesis rate of lactase-phlorizin hydrolase (LPH) were determined in 6-wk-old rats that were fed either low-starch diets containing long-chain triacylglycerol (LCT, 73% energy as corn oil) or medium-chain triacylglycerol (MCT, 66% energy as MCT, 7% energy as corn oil), or a high-starch diet (70% energy as cornstarch) for 7 days. LPH mRNA levels in the jejunum were similar between LCT-fed and MCT-fed rats, but animals fed the high-starch diet exhibited a grea

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4

Rasinpera, H. "Transcriptional downregulation of the lactase (LCT) gene during childhood." Gut 54, no. 11 (2005): 1660–61. http://dx.doi.org/10.1136/gut.2005.077404.

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5

Abaturov, Alexandr Ye, Yuri M. Stepanov, and Anna A. Nikulina. "TREATMENT OF LACTASE DEFICIENCY IN CHILDREN’S OBESITY WITH GENOTYPE C/C 13910 OF LACTASE GENE." Wiadomości Lekarskie 72, no. 1 (2019): 17–21. http://dx.doi.org/10.36740/wlek201901103.

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Introduction: Excess lactose in the diet of modern man causes the development of not only lactase deficiency, but it can be a factor that contributes to obesity. The aim: To study associations between obesity and genotype C/C 13910 of lactase gene (LCT) in children, to investigate the effectiveness of treatment using drug exogenous lactase and a low-lactose diet. Materials and methods: genotyping of lactase gene by real-time polymerase chain reaction, determining the level of lactose maldigestion by hydrogen breath test (HBT), estimating the insulin resistance with the HOMA-IR index in 70 obes

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6

Popadowska, Agnieszka, and Agnieszka Kempinska-Podhorodecka. "Relation of the C/T-13910 LCT Polymorphism with Body Composition Measures and Their Modulation by Dairy Products in a Caucasian Men." American Journal of Men's Health 15, no. 2 (2021): 155798832110072. http://dx.doi.org/10.1177/15579883211007272.

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The C/T-13910 LCT is closely associated with lactase persistence and LCT has emerged as a new candidate gene for obesity, in particular in northern Europeans. The aim of this research is to investigate to what degree sex determines the association between the LCT variant and anthropometric traits in a cohort of healthy individuals. We recruited 1000 (500 males and 500 females aged 18–65 years) healthy blood donors. The C/T-13910 LCT polymorphism was genotyped using TaqMan assays. All individuals were phenotyped with respect to anthropometric characteristics. Prevalence of genotypes was 22.7% C

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7

Kuokkanen, Mikko, Jorma Kokkonen, Nabil Sabri Enattah, et al. "Mutations in the Translated Region of the Lactase Gene (LCT) Underlie Congenital Lactase Deficiency." American Journal of Human Genetics 78, no. 2 (2006): 339–44. http://dx.doi.org/10.1086/500053.

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8

Piepoli, Ada, Enrico Schirru, Angela Mastrorilli, et al. "Genotyping of the Lactase-Phlorizin Hydrolase C/T-13910 Polymorphism by Means of a New Rapid Denaturing High-Performance Liquid Chromatography-Based Assay in Healthy Subjects and Colorectal Cancer Patients." Journal of Biomolecular Screening 12, no. 5 (2007): 733–39. http://dx.doi.org/10.1177/1087057107301328.

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Adult-type hypolactasia results from the progressive decline of lactase-phlorizin hydrolase activity in enterocytes after weaning. Lactase nonpersistence may determine a primary lactose intolerance with reduced diary product consumption, which is possibly related to an increased risk of colon cancer. Recently, a genetic variant C/T—13910 upstream of the lactase-phlorizin hydrolase ( LCT) gene has been strongly correlated with the lactase persistence/nonpersistence trait in both family and case-control studies. The authors validate a denaturing high-performance liquid chromatography (dHPLC)—bas

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9

Nardone, Olga Maria, Francesco Manfellotto, Caterina D’Onofrio, et al. "Lactose Intolerance Assessed by Analysis of Genetic Polymorphism, Breath Test and Symptoms in Patients with Inflammatory Bowel Disease." Nutrients 13, no. 4 (2021): 1290. http://dx.doi.org/10.3390/nu13041290.

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Many patients with inflammatory bowel disease (IBD) restrict dairy products to control their symptoms. The aim of the study was to investigate the prevalence of lactose intolerance assessed with hydrogen breath test (H-BT) in IBD patients in clinical remission compared to a sex, age and BMI matched control population. We further detected the prevalence of three single nucleotide polymorphisms of the lactase (LCT) gene: the lactase non persistence LCT-13910 CC (wildtype) and the intermediate phenotype LCT-22018 CT and LCT-13910 AG; finally, we assess the correlation between genotype and H-BT. A

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10

Thomsen, P. D., M. Johansson, J. T. Troelsen, and L. Andersson. "The lactase phlorizin hydrolase (LCT) gene maps to pig chromosome 15q13." Animal Genetics 26, no. 1 (2009): 49–52. http://dx.doi.org/10.1111/j.1365-2052.1995.tb02621.x.

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