Gall-bladder glycoprotein synthesis and secretion during cholesterol gallstone formation in the mouse

1986 ◽  
Vol 1 (4) ◽  
pp. 323-332 ◽  
Author(s):  
M. J. WHITING ◽  
J. MCK. WATTS
Gut ◽  
1998 ◽  
Vol 43 (6) ◽  
pp. 817-822 ◽  
Author(s):  
Q-W Xu ◽  
R B Scott ◽  
D T M Tan ◽  
E A Shaffer

Background—The ground squirrel on a high cholesterol diet exhibits prolonged intestinal transit, a pathogenetic factor in cholesterol gallstone formation.Aims—To examine the effect of a high cholesterol diet on the characteristics of the migrating myoelectrical complex (MMC) and the potential benefit of erythromycin.Methods—Twenty four animals received either a trace (controls) or a 1% (high) cholesterol diet. After four weeks, five bipolar jejunal and terminal ileal electrodes were implanted. Seven days later, myoelectric activity was measured in conscious, fasted animals before and after treatment with erythromycin. Biliary lipid composition was assessed.Results—Compared with controls, animals fed the high cholesterol diet exhibited a prolonged MMC cycle period (70 (6) versus 83 (3) minutes; p<0.05), whereas MMC migration velocity and the proportions of the MMC represented by phases I, II, and III were unchanged. Oral erythromycin significantly shortened the MMC cycle period in animals on the control and high cholesterol diet by 59% and 54% respectively, and increased the proportion of the cycle period occupied by phase III of the MMC in both dietary groups. Gall bladder bile became saturated with cholesterol and crystals developed in nine of 12 animals on the high cholesterol diet; controls had none.Conclusion—Animals fed a high cholesterol diet had a prolonged MMC cycle period. This, along with diminished gall bladder motility, impairs the enterohepatic cycling of bile salts and reduces their hepatic secretion, contributing to the formation of abnormal bile. Erythromycin initiated more frequent cycling of the MMC. Its therapeutic value in cholesterol gallstone formation warrants further evaluation.


1998 ◽  
Vol 10 (12) ◽  
pp. A8
Author(s):  
K. J. van Erpecum ◽  
P. Portincasa ◽  
E. R.M. Eckhardt ◽  
B. J.M. van de Heijning ◽  
A. K. Groen ◽  
...  

2007 ◽  
Vol 133 (4) ◽  
pp. 1304-1315 ◽  
Author(s):  
Kirk J. Maurer ◽  
Varada P. Rao ◽  
Zhongming Ge ◽  
Arlin B. Rogers ◽  
Trisha J. Oura ◽  
...  

2000 ◽  
Vol 4 (1) ◽  
pp. 59-65 ◽  
Author(s):  
BEVERLY PAIGEN ◽  
NICHOLAS J. SCHORK ◽  
KAREN L. SVENSON ◽  
YIN-CHAI CHEAH ◽  
JIAN-LONG MU ◽  
...  

Quantitative trait locus (QTL) mapping was used to locate genes that determine the difference in cholesterol gallstone disease between the gallstone-susceptible strain C57L/J and the gallstone-resistant strain AKR/J. Gallstone weight was determined in 231 male (AKR × C57L) F1× AKR backcross mice fed a lithogenic diet containing 1% cholesterol, 0.5% cholic acid, and 15% butterfat for 8 wk. Mice having no stones and mice having the largest stones were genotyped at ∼20-cM intervals to find the loci determining cholesterol gallstone formation. The major locus, Lith1, mapped near D2Mit56 and was confirmed by constructing a congenic strain, AK.L- Lith1s. Another locus, Lith2, mapped near D19Mit58 and was also confirmed by constructing a congenic strain AK.L- Lith2s. Other suggestive, but not statistically significant, loci mapped to chromosomes 6, 7, 8, 10, and X. The identification of these Lith genes will elucidate the pathophysiology of cholesterol gallstone formation.


2019 ◽  
Vol 26 (19) ◽  
pp. 3620-3638 ◽  
Author(s):  
Agostino Di Ciaula ◽  
Gabriella Garruti ◽  
Gema Frühbeck ◽  
Maria De Angelis ◽  
Ornella de Bari ◽  
...  

: Cholesterol gallstone disease is a major health problem in Westernized countries and depends on a complex interplay between genetic factors, lifestyle and diet, acting on specific pathogenic mechanisms. Overweigh, obesity, dyslipidemia, insulin resistance and altered cholesterol homeostasis have been linked to increased gallstone occurrence, and several studies point to a number of specific nutrients as risk- or protective factors with respect to gallstone formation in humans. There is a rising interest in the identification of common and modifiable dietetic factors that put the patients at risk of gallstones or that are able to prevent gallstone formation and growth. In particular, dietary models characterized by increased energy intake with highly refined sugars and sweet foods, high fructose intake, low fiber contents, high fat, consumption of fast food and low vitamin C intake increase the risk of gallstone formation. On the other hand, high intake of monounsaturated fats and fiber, olive oil and fish (ω-3 fatty acids) consumption, vegetable protein intake, fruit, coffee, moderate alcohol consumption and vitamin C supplementation exert a protective role. : The effect of some confounding factors (e.g., physical activity) cannot be ruled out, but general recommendations about the multiple beneficial effects of diet on cholesterol gallstones must be kept in mind, in particular in groups at high risk of gallstone formation.


1998 ◽  
Vol 114 ◽  
pp. A547
Author(s):  
K.J. van Erpecum ◽  
P. Portincasa ◽  
E.R.M. Eckhardt ◽  
B.J.M. van de Heijning ◽  
A.K. Groen ◽  
...  

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