Correlation between biliary alpha 1-acid glycoprotein concentration and cholesterol crystal nucleation time in gallstone disease. 1995

H Nuutinen, and S Ginanni Corradini, and D Jüngst, and V Lange, and M Abei, and J Schwarzendrube, and C Williams, and R T Holzbach
Gastrointestinal Research Unit, Research Institute, Cleveland Clinic Foundation, Ohio 44195-5218, USA.

A biliary form of the alpha 1-acid glycoprotein (AAG) promotes cholesterol crystallization in the lower-molecular-weight, concanavalin A-bound fraction of gallbladder bile. In addition, bile AAG concentration is higher in cholesterol gallstone patients with multiple stones than in control patients without gallstone disease. In this study we sought to determine whether the increased biliary concentration of AAG in cholesterol gallstone patients is accompanied by a more rapid nucleation time in patients with multiple stones. AAG concentration in native biles was measured by ELISA. Nucleation time was measured using a standard microscopy method. The concentration of biliary AAG was then related to nucleation time in biles from the same patients. Nucleation times were significantly shorter (< or = 5 days) in cholesterol gallstone patients with raised AAG concentrations (P < 0.03). There was a significant (P = 0.004) negative correlation (r = -0.53) between nucleation time and the AAG concentration in cholesterol gallstone patients with multiple stones. The concentration of biliary AAG appears to exert an important influence on the speed of cholesterol nucleation in bile in many patients with cholesterol gallstone disease.

UI MeSH Term Description Entries
D009961 Orosomucoid Acid Seromucoid,Seromucoid,Serum Sialomucin,alpha 1-Acid Glycoprotein,alpha 1-Acid Seromucoid,A(1)-Acid Seromucoid,Acid alpha 1-Glycoprotein,Alpha(1)-Acid Glycoprotein,alpha 1-Acid Glycoprotein (Acute Phase),alpha 1-Glycoprotein Acid,Acid alpha 1 Glycoprotein,Glycoprotein, alpha 1-Acid,Seromucoid, Acid,Seromucoid, alpha 1-Acid,Sialomucin, Serum,alpha 1 Acid Glycoprotein,alpha 1 Acid Seromucoid,alpha 1 Glycoprotein Acid
D002769 Cholelithiasis Presence or formation of GALLSTONES in the BILIARY TRACT, usually in the gallbladder (CHOLECYSTOLITHIASIS) or the common bile duct (CHOLEDOCHOLITHIASIS). Gallstone Disease,Cholelithiases,Gallstone Diseases
D002784 Cholesterol The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Epicholesterol
D003460 Crystallization The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Crystalline Polymorphs,Polymorphism, Crystallization,Crystal Growth,Polymorphic Crystals,Crystal, Polymorphic,Crystalline Polymorph,Crystallization Polymorphism,Crystallization Polymorphisms,Crystals, Polymorphic,Growth, Crystal,Polymorph, Crystalline,Polymorphic Crystal,Polymorphisms, Crystallization,Polymorphs, Crystalline
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001646 Bile An emulsifying agent produced in the LIVER and secreted into the DUODENUM. Its composition includes BILE ACIDS AND SALTS; CHOLESTEROL; and ELECTROLYTES. It aids DIGESTION of fats in the duodenum. Biliary Sludge,Sludge, Biliary
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D016018 Least-Squares Analysis A principle of estimation in which the estimates of a set of parameters in a statistical model are those quantities minimizing the sum of squared differences between the observed values of a dependent variable and the values predicted by the model. Rietveld Refinement,Analysis, Least-Squares,Least Squares,Analyses, Least-Squares,Analysis, Least Squares,Least Squares Analysis,Least-Squares Analyses,Refinement, Rietveld
D018709 Statistics, Nonparametric A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5) Kolmogorov-Smirnov Test,Kruskal-Wallis H Statistic,Mann-Whitney U Test,Rank-Sum Tests,Spearman Rank Correlation Coefficient,Wilcox Test,Wilcoxon Rank Test,Non-Parametric Statistics,Nonparametric Statistics,Statistics, Non-Parametric,Kolmogorov Smirnov Test,Mann Whitney U Test,Non Parametric Statistics,Rank Sum Tests,Rank Test, Wilcoxon,Rank-Sum Test,Statistics, Non Parametric,Test, Kolmogorov-Smirnov,Test, Mann-Whitney U,Test, Rank-Sum,Test, Wilcox,Test, Wilcoxon Rank,Tests, Rank-Sum,U Test, Mann-Whitney

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