PMID- 1940193 OWN - NLM STAT- MEDLINE DCOM- 19911129 LR - 20190817 IS - 0192-0790 (Print) IS - 0192-0790 (Linking) VI - 13 Suppl 1 DP - 1991 TI - Assessment of mucus glycoprotein erosion by measurement of sialic acid in gastric secretions: pathophysiologic and therapeutic aspects. PG - S22-31 AB - The quantification of mucus glycoproteins (GPs) faces paramount difficulties in terms of methods and interpretation. Mucus glycoprotein erosion, however, might be quantified in gastric juice by measurement of GP-bound sialic acid. Basal sialic acid content was low in normal healthy subjects (N) and in nonulcer dyspepsia (NUD) patients. They were five to six times higher in duodenal ulcer (DU), or more in Zollinger-Ellison patients. Pentagastrin stimulation induced a five- to sixfold rise in N and NUD patients although it did not affect DU patient sialic acid contents. Relationships between sialic acid content and pepsin output in DU indicate that pepsin exerts a variable mucolytic activity depending on disease evolution. In addition to pepsin, duodenogastric reflux exerts a potent mucolytic effect. Therapeutically, highly selective vagotomy without recurrent ulcer markedly reduced mucus erosion. The reduction of mucus erosion by protective drugs has been observed in some cases but in other cases sialic acid measurement did not allow to verify a protective effect. Adherent mucus analysis by high-performance liquid chromatography (HPLC) should allow one to appreciate GP fractions qualitatively. Combination of both methods should allow further determination of the mucus protective role, simultaneously investigating the adherent mucus quality and eroded GPs. FAU - Pasquier, M C AU - Pasquier MC AD - INSERM U 10, C.H.U. Xavier Bichat, Paris, France. FAU - Vatier, J AU - Vatier J FAU - Poitevin, C AU - Poitevin C FAU - Vallot, T AU - Vallot T FAU - Mignon, M AU - Mignon M LA - eng PT - Journal Article PL - United States TA - J Clin Gastroenterol JT - Journal of clinical gastroenterology JID - 7910017 RN - 0 (Aluminum Compounds) RN - 0 (Antacids) RN - 0 (Glycoproteins) RN - 0 (Phosphates) RN - 0 (Sialic Acids) RN - CPD4NFA903 (Aluminum) RN - EC 3.4.23.1 (Pepsin A) RN - EF0NX91490 (Pentagastrin) RN - F92V3S521O (aluminum phosphate) RN - GZP2782OP0 (N-Acetylneuraminic Acid) SB - IM MH - Aluminum/therapeutic use MH - *Aluminum Compounds MH - Antacids/therapeutic use MH - Duodenal Ulcer/physiopathology/therapy MH - Dyspepsia/physiopathology MH - Gastric Juice/*chemistry/metabolism MH - Gastric Mucosa/*metabolism MH - Glycoproteins/chemistry/*metabolism MH - Humans MH - N-Acetylneuraminic Acid MH - Pentagastrin MH - Pepsin A/metabolism MH - Phosphates/therapeutic use MH - Sialic Acids/*analysis MH - Vagotomy, Proximal Gastric MH - Zollinger-Ellison Syndrome/physiopathology EDAT- 1991/01/01 00:00 MHDA- 1991/01/01 00:01 CRDT- 1991/01/01 00:00 PHST- 1991/01/01 00:00 [pubmed] PHST- 1991/01/01 00:01 [medline] PHST- 1991/01/01 00:00 [entrez] AID - 10.1097/00004836-199112001-00004 [doi] PST - ppublish SO - J Clin Gastroenterol. 1991;13 Suppl 1:S22-31. doi: 10.1097/00004836-199112001-00004.