Results 51 to 60 of about 20,877 (243)
The onset of lactase persistence in Europe
, 2013 The genomic region containing the lactase (LCT) gene shows one of the strongest signals of positive selection in Europeans, detectable using a range of approaches including haplotype length, linked microsatellite variation and population-differentiation ...
Gerbault, P.
core +1 more source
Frontiers in Genetics, 2020 Among people of European descent, the ability to digest lactose into adulthood arose via strong positive selection of a highly advantageous allele encompassing the lactase gene. Lactose-tolerant and intolerant individuals may have different disease risks
Shannon E. K. Joslin +9 more
doaj +1 more source
Impact of selection and demography on the diffusion of lactase persistence. [PDF]
PLoS ONE, 2009 BACKGROUND:The lactase enzyme allows lactose digestion in fresh milk. Its activity strongly decreases after the weaning phase in most humans, but persists at a high frequency in Europe and some nomadic populations.
Pascale Gerbault +3 more
doaj +1 more source
Levels of disaccharidases in the brush border membrane of equine small intestine [PDF]
Iraqi Journal of Veterinary Sciences, 2020 The disaccharides, consisting of sucrose, lactose and maltose, are hydrolysed into monosaccharides (D-glucose, D-galactose and D-fructose) by intestinal brush border enzymes: sucrase, lactase and maltase.
Miran A. Al-Rammahi
doaj +1 more source
Animal Research and One Health, EarlyView.Gastrointestinal nematode infections damage the gastrointestinal epithelial tissues of ruminants, affecting nutrient utilization and overall production performance. This review outlines host‐gastrointestinal nematode interactions and discusses integrated control strategies, including nutritional supplementation, grazing management, vaccines, and ...
Wenxun Chen +5 more
wiley +1 more source
The evolution of lactase persistence in Europe. A synthesis of archaeological and genetic evidence
, 2012 Lactase persistence, the ability to digest the milk sugar lactose in adulthood, is highly associated with a T allele situated 13,910 bp upstream from the actual lactase gene in Europeans.
Thomas, M.G. +11 more
core +1 more source
Production of HPMC-films for lactase administration [PDF]
Anais da Academia Brasileira de Ciências, 2020 The present work aimed to develop and characterize HPMC-films (HFs) based on hydroxypropylmethylcellulose (HPMC) with the addition of lactase for later application in the reduction of lactose in whole milk. The HFs were produced by the casting technique,
HELOÍSA R.P. DA SILVA +3 more
doaj +1 more source
BMC Genomics, 2019 Human population history in the Holocene was profoundly impacted by changes in lifestyle following the invention and adoption of food-production practices.
M. Vicente +6 more
semanticscholar +1 more source
Biotechnology and Applied Biochemistry, EarlyView.ABSTRACT Adsorption is the simplest method of enzyme immobilization, but it often requires additional treatments to improve stability. These treatments, however, may impact enzymatic activity. This study investigated the effect of crosslinking on the stability of β‐galactosidase immobilized by adsorption on A‐568 resin and its implications for ...
Aliou Toro Lafia +3 more
wiley +1 more source
Demonstration of lactase activity in culture medium of melon cells
Horticultural Science, 2004 Lactase activity was detected in a culture medium of the cell suspension culture of watermelon (Citrullus vulgaris L.). A simple, rapid and reproducible procedure for identification of extracellular lactase is described using callus cultures of seedlings
J. Stano +5 more
doaj +1 more source