Aspirin prevention of cholesterol gallstone formation in prairie dogs.

@article{Lee1981AspirinPO,
  title={Aspirin prevention of cholesterol gallstone formation in prairie dogs.},
  author={S. P. Lee and Martin C. Carey and J. Thomas Lamont},
  journal={Science},
  year={1981},
  volume={211 4489},
  pages={
          1429-31
        }
}
When prairie dogs (Cynomys ludovicianus) are fed a diet containing cholesterol, a marked increase in gallbladder mucin secretion parallels the evolution of cholesterol supersaturated bile. Gelation of mucin precedes the precipitation of cholesterol liquid and solid crystals and the development of gallstones. Aspirin given to prairie dogs inhibited mucin hypersecretion and gel accumulation and prevented gallstone formation without influencing the cholesterol content of supersaturated bile. This… 
The role of cholestanol in the pathogenesis of cholesterol gallstones . Review : Hypothesis and Conception ( 1991 )
The results allow proposing a novel hypothesis and concept of cholesterol gallstone pathogenesis in man: cholestanol may be responsible for the cholesterol supersaturation of gallbladder bile,
Pathogenesis of gallstones.
Effect of dietary cholesterol and indomethacin on cholelithiasis and gallbladder motility in guinea pig
TLDR
Although cholesterol feeding did not appear to alter smooth muscle contractility in the guinea pig gallbladder, it caused significant gallbladders enlargement by a mechanism which may be dependent on prostaglandins.
Cholesterol cholelithiasis in the prairie dog: Role of mucin and nonmucin glycoproteins
TLDR
The increased biliary glycoprotein level in cholesterolfed, prostaglandin E1‐treated prairie dogs, which reflects higher levels of mucin and nonmucin glycoproteins, appears to be an important factor in gallstone formation.
Ground squirrel model for cholelithiasis: Role of epithelial glycoproteins
TLDR
The results indicate that mucin hypersecretion appears to be more closely related to the initiation of nucleation than does either bile calcium or pH, which is typically seen in other regions of the gastrointestinal tract where sialomucins predominate during pathologic processes.
Role of Gallbladder Mucin in Pathophysiology of Gallstones
TLDR
It is suggested that inhibition of mucin release may prevent cholesterol stone formation during high‐risk periods or after dissolution therapy with bile salts.
Increased biliary protein precedes gallstone formation
TLDR
The finding that gallbladder bile total protein increases during crystal agglomeration indicates that high concentrations of biliary total protein in combination with elevated levels of calcium may promote cholesterol crystal nucleation and gallstone formation.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 42 REFERENCES
Cholesterol nucleation and growth in gallstone formation.
  • D. Small
  • Medicine
    The New England journal of medicine
  • 1980
Cholesterol gallstones are composed of crystalline cholesterol monohydrate and are formed from cholesterol dissolved in bile; thus, cholesterol monohydrate crystallization is a prerequisite for
Effect of lysine acetylsalicylate on biliary lipid secretion in dogs.
TLDR
The influence of lysine acetylsalicylate on bile flow, erythritol clearance and bile salt, phospholipid and cholesterol secretion in bile was studied in unanaesthetized dogs fitted with a Thomas duodenal cannula and may be of value in the treatment of cholesterol gallstones in man.
The process of cholesterol cholelithiasis induced by diet in the prairie dog: a physicochemical characterization.
TLDR
In vivo studies of prairie dog bile following rapid induction of supersaturation revealed identical changes and the in vitro work has now predicted not only static, but dynamic processes as well, with respect to cholesterol precipitation beginning with the metastably supersaturated state and eventuating in gallstone formation.
Bile composition, bile salt metabolism and gallstones.
TLDR
It is hypothesized that the fundamental defect in cholesterol gallstone disease is the secretion of abnormal bile supersaturated with cholesterol, and it is also possible that the gallbladder-Oddi's sphincter axis may influence hepatic bile salt metabolism and secretion, and, therefore, abnormal biles production.
Cholesterol crystals and the formation of cholesterol gallstones.
TLDR
Gallbladder bile was obtained by means of duodenal intubation in 54 patients and from 17 patients undergoing cholecystectomy for cholelithiasis and cholesterol crystallization is probably a prerequisite for the formation of cholesterol gallstones; however, many subjects have no crystallization despite marked supersaturation.
Liquid Crystals in Human Bile
TLDR
GALLSTONES may grow from microspheroliths, non-crystalline associations of cholesterol, pigment or calcium carbonate associations, but their composition and nature have never been well defined.
Effect of bile acids and other factors on cholesterol uptake by inverted intestinal sacs.
TLDR
A binding of cholesterol to a cellular protein is proposed as the mechanism for the entrance of cholesterol into intestinal mucosal cells and conjugated and unconjugated bile acids inhibited cholesterol uptake.
...
1
2
3
4
5
...