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[Effect of fluorine on enzyme activity in the small intestine mucosa during absorption of sodium, potassium, monosaccharides and amino acids]. 1987

V K Grigorenko, and P P Bachinskiĭ, and V F Grebennikova

Effect of NaF on ATP-ase, creatine kinase, acid and basic phosphatases activity of small intestine mucosa in white rats during enteral administration of NaCl, KCl solutions has been studied under conditions of acute experiment. Inhibition of the Mg2+-ATP-ase activity by 13%, general ATP-ase activity by 25%, creatine kinase by 22% and a 2.2-3 fold inhibition of Na, K+-ATP-ase activity is observed. Acid and basic phosphatase activity does not change, swelling of mucosa is observed. The acid phosphatase activity in the intestinal contents increases 1.5 times, basic phosphatase activity--1.7 times, creatine amount--1.7 times, Pi amount 1.8 times. In experiments in vitro F- produces 20% activation of the basic phosphatase of mucosa and a 2.6-fold inhibition of the acid phosphatase. Rate of fructose absorption falls by 34%, that of methionine--by 29%, glucose--by 24%, glutaminic acid--by 10%. Activity of general ATP-ase in this case decreases by 22, 15, 27, 20% respectively. It is supposed that the F- effect results in destabilization of the membrane structures of the intestine mucosa.

UI MeSH Term Description Entries
D007408 Intestinal Absorption Uptake of substances through the lining of the INTESTINES. Absorption, Intestinal
D007413 Intestinal Mucosa Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI. Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D007421 Intestine, Small The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM. Small Intestine,Intestines, Small,Small Intestines
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D009005 Monosaccharides Single chain carbohydrates that are the most basic units of CARBOHYDRATES. They are typically colorless crystalline substances with a sweet taste and have the same general formula CnH2nOn. Monosaccharide,Simple Sugar,Simple Sugars,Sugar, Simple,Sugars, Simple
D011188 Potassium An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D003402 Creatine Kinase A transferase that catalyzes formation of PHOSPHOCREATINE from ATP + CREATINE. The reaction stores ATP energy as phosphocreatine. Three cytoplasmic ISOENZYMES have been identified in human tissues: the MM type from SKELETAL MUSCLE, the MB type from myocardial tissue and the BB type from nervous tissue as well as a mitochondrial isoenzyme. Macro-creatine kinase refers to creatine kinase complexed with other serum proteins. Creatine Phosphokinase,ADP Phosphocreatine Phosphotransferase,ATP Creatine Phosphotransferase,Macro-Creatine Kinase,Creatine Phosphotransferase, ATP,Kinase, Creatine,Macro Creatine Kinase,Phosphocreatine Phosphotransferase, ADP,Phosphokinase, Creatine,Phosphotransferase, ADP Phosphocreatine,Phosphotransferase, ATP Creatine
D005461 Fluorine A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries. Fluorine-19,Fluorine 19
D000135 Acid Phosphatase An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.2. Acid beta-Glycerophosphatase,Acid beta Glycerophosphatase

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