Nuclear magnetic resonance analysis of indomethacin-induced gastric ulcers. 2005

Saadallah Ramadan, and Antonio M Bonin, and Brendan J Kennedy, and Trevor W Hambley, and Peter A Lay
Centre for Heavy Metals Research, School of Chemistry, University of Sydney, NSW, 2006, Australia.

Acetonitrile extracts of ulcerated and control rat stomachs were studied by various NMR techniques in an attempt to understand how indomethacin, a common and powerful nonsteroidal antiinflammatory drug (NSAID), induces ulcers in the stomach. One- (1D) and two-dimensional (2D) NMR spectra of extracts of ulcerated and control stomachs revealed that glycolytic and Krebs cycle enzymes were partially inhibited in the ulcerated stomach as shown by the lactate/glucose ratio. The (total choline)/lactate ratio was also higher in the extract from the control stomach than in the ulcerated stomach. Glycerophosphoethanolamine and glycerophosphocholine concentrations were higher in the ulcerated stomach extract as compared with the control stomach extract. These results explain the gastrointestinal protective effect of D-glucose and Krebs cycle intermediates on NSAID-induced ulceration.

UI MeSH Term Description Entries
D007213 Indomethacin A non-steroidal anti-inflammatory agent (NSAID) that inhibits CYCLOOXYGENASE, which is necessary for the formation of PROSTAGLANDINS and other AUTACOIDS. It also inhibits the motility of POLYMORPHONUCLEAR LEUKOCYTES. Amuno,Indocid,Indocin,Indomet 140,Indometacin,Indomethacin Hydrochloride,Metindol,Osmosin
D008297 Male Males
D010710 Phosphates Inorganic salts of phosphoric acid. Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D010759 Phosphorus Isotopes Stable phosphorus atoms that have the same atomic number as the element phosphorus, but differ in atomic weight. P-31 is a stable phosphorus isotope. Isotopes, Phosphorus
D011522 Protons Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion. Hydrogen Ions,Hydrogen Ion,Ion, Hydrogen,Ions, Hydrogen,Proton
D002794 Choline A basic constituent of lecithin that is found in many plants and animal organs. It is important as a precursor of acetylcholine, as a methyl donor in various metabolic processes, and in lipid metabolism. Bursine,Fagine,Vidine,2-Hydroxy-N,N,N-trimethylethanaminium,Choline Bitartrate,Choline Chloride,Choline Citrate,Choline Hydroxide,Choline O-Sulfate,Bitartrate, Choline,Chloride, Choline,Choline O Sulfate,Citrate, Choline,Hydroxide, Choline,O-Sulfate, Choline
D005947 Glucose A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement. Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D005997 Glycerylphosphorylcholine A component of PHOSPHATIDYLCHOLINES or LECITHINS, in which the two hydroxy groups of GLYCEROL are esterified with fatty acids. (From Stedman, 26th ed) Choline Glycerophosphate,Choline Alfoscerate,Choline Alphoscerate,Glycerol 3-Phosphocholine,Glycerophosphorylcholine,L-alpha-Glycerylphosphorylcholine,3-Phosphocholine, Glycerol,Alfoscerate, Choline,Alphoscerate, Choline,Glycerol 3 Phosphocholine,Glycerophosphate, Choline,L alpha Glycerylphosphorylcholine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013270 Stomach An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM. Stomachs

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