Abstract:
Lactase deficiency (LY) is a disorder of the functioning of the congenital or acquired digestive system that is
accompanied by a violation of the absorption of lactose (milk shikari), especially in the small intestine. In the Normal state,
milk sugar is broken down into monosaccharides glucose and galactose by the action of the enzyme lactase in the small
intestine cavity and is actively transported in the small intestine. Clinical manifestations of enzyme deficiency are determined
by lactase deficiency. The enzyme mainly activates in the vortices of the apical part of the enterocytes of the small intestine.
Low enzyme activity increases the risk of developing malabsorption syndrome. Patalogy, which is common all over the
world today, is a disease in which a violation of the digestion and absorption process in the intestines accompanies lactase
deficiency. The relevance of studying this disease is that the young organism that is, newborns feed mainly on breast milk and
dairy products and adapt to the external environment, in which the role of lactase is played. The article provides a brief
overview of enzyme deficient, its ethylogical factors, and novel treatments.