PEPSIN IN SURGERY
نویسندگان
چکیده
منابع مشابه
Crystalline Pepsin
The decrease in protein nitrogen and in the activity of solutions of crystalline pepsin at pH 1.8 and 45 degrees C. has been determined. The decrease in activity, as measured with eleven different methods, is in exact proportion to the decrease of protein nitrogen of the solution. The measurements were continued until less than 5 per cent of the original protein remained. These results indicate...
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The results (1) of the experiments with crystalline pepsin isolated from crude pepsin preparations indicated that the material is a pure substance and that the proteolytic activity is a property of the protein molecule itself and is not due to the presence of a separate non-protein impurity. No indication of the presence of a more highly active nonprotein molecule was obtained in the solubility...
متن کاملMucus degradation by pepsin: comparison of mucolytic activity of human pepsin 1 and pepsin 3: implications in peptic ulceration.
The ability to digest mucus, mucolytic activity of isolated pepsins and samples of human gastric juice has been assayed by measuring the fall in viscosity when incubated with purified pig gastric mucus glycoprotein. Pure human pepsin 1, the peptic ulcer associated pepsin, digested gastric mucus glycoprotein at a faster rate than did pure human pepsin 3 (the principal human pepsin), or the equiv...
متن کاملBlood Pepsin Determinations in Gastritis ‡
Study of groups of asymptomatic subjects with an increased likelihood of developing gastric cancer is a fundamental approach to the problem of gastric cancer. The selection of such groups, however, has remained a difficult task.' Pernicious anemia and its pathologic substrate, gastric atrophy, frequently associated with gastric cancer, may be an important precursor of gastric malignancy."8 Mors...
متن کاملTransformation of Swine Pepsinogen into Swine Pepsin by Chicken Pepsin
Activation of swine pepsinogen with chicken pepsin results in the formation of swine pepsin. Activation of chicken pepsinogen with swine pepsin results in the formation of chicken pepsin. The structure responsible for the species specificity of the enzyme is therefore present in the inactive precursor.
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ژورنال
عنوان ژورنال: The American Journal of the Medical Sciences
سال: 1889
ISSN: 0002-9629
DOI: 10.1097/00000441-188903000-00045