Gallstones
Mostrando 13-24 de 80 artigos, teses e dissertações.
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13. Human gallstones contain pronucleating nonmucin glycoproteins that are immunoglobulins.
OBJECTIVE: Pronucleating nonmucin glycoproteins in human cholesterol and black gallstones were isolated and identified. SUMMARY BACKGROUND DATA: Gallbladder bile contains nonmucin glycoproteins that are pronucleating of cholesterol monohydrate crystals. Little is known about the presence or activity of these proteins within gallstones. METHODS: Nonmucin glyc
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14. Biofilm Formation and Interaction with the Surfaces of Gallstones by Salmonella spp.
Salmonellae can exist in an asymptomatic carrier state in the human gallbladder. Individuals with gallstones are more likely to become typhoid carriers, and antibiotic treatments are often ineffectual against Salmonella enterica serovar Typhi in carriers with gallstones. Therefore, we hypothesized that Salmonella spp. form biofilms on the surfaces of gallsto
American Society for Microbiology.
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15. Gallstones split at laparoscopic cholecystectomy: a new cause of intraperitoneal granulomas.
A case of a 32 year old woman with a foreign body-type granulomatous reaction to gallstones split at previous laparoscopic cholecystectomy is reported. The patient presented with hard nodules within the omentum at a subsequent Caesarean section, raising the possibility of metastatic tumour. Histological examination showed gallstones with an associated foreig
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16. The formation of abnormal bile and cholesterol gallstones from dietary cholesterol in the prairie dog
To study the pathogenesis of cholesterol gallstones, we fed 24 adult male prairie dogs a high cholesterol, egg yolk diet. 13 control animals received a cholesterol-free diet. All animals fed the egg yolk diet formed multiple gallstones in 2-6 months' time. These stones contained cholesterol, 77±14% by dry weight. No stones ocurred in the control group.
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17. Studies on the Pathogenesis of Pigment Gallstones in Hemolytic Anemia: DESCRIPTION AND CHARACTERISTICS OF A MOUSE MODEL
The pathogenesis of hemolysis-induced gallstones was studied in mice with a hereditary hemolytic disease called normoblastic anemia (genotype nb/nb) and in their normal controls (genotype +/+). Infrared spectroscopy demonstrated that spontaneously formed gallstones from nb/nb mice were nearly identical to stones from patients with chronic hemolysis as the re
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18. Isolation of an acidic protein from cholesterol gallstones, which inhibits the precipitation of calcium carbonate in vitro.
In seeking to identify nucleating/antinucleating proteins involved in the pathogenesis of cholesterol gallstones, a major acidic protein was isolated from each of 13 samples of cholesterol gallstones. After the stones were extracted with methyl t-butyl ether to remove cholesterol, and methanol to remove bile salts and other lipids, they were demineralized wi
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19. Gallstone disease following antrectomy and gastroduodenostomy with or without vagotomy.
The incidence and prevalence of gallstones has been documented in 289 consecutive patients with peptic ulcer disease, at the time of antrectomy and gastroduodenostomy (with or without truncal or selective vagotomy) and again during a 5-year follow-up period. By comparing the preoperative prevalence of gallstone disease in one age group with the prevalence 5
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20. Fair, and still a sun lover: risk of gallstone formation.
STUDY OBJECTIVE--The aim was to evaluate the hypothesis that sunlight exposure leads to the development of gallstones in people with a sun sensitive skin. DESIGN AND SETTING--This was a case-control study among 206 white patients referred for an ultrasound examination of the gallbladder. Sunlight exposure and skin sensitivity were retrospectively assessed by
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21. Biliary lipid secretion in cholesterol gallstone disease. The effect of cholecystectomy and obesity.
Cholesterol gallstone disease is initiated in a liver which produces abnormal bile with excess cholesterol relative to bile salts and phospholipid. To define the responsible secretory mechanism(s), the rate of biliary lipid secretion was measured by a duodenal marker perfusion technique, while the bile salt pool was simultaneously estimated by isotope diluti
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22. Mechanisms of Lithogenic Bile Formation in American Indian Women with Cholesterol Gallstones
Hepatic secretions of biliary lipids were estimated in 43 patients with and without cholesterol gallstones. Studies were carried out by a marker dilution technique employing duodenal intubation with a three-lumen tube. Hourly secretion rates of cholesterol, bile acids, and phospholipids were determined during constant infusion with liquid formula.
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23. Comparative Analysis of Salmonella enterica Serovar Typhimurium Biofilm Formation on Gallstones and on Glass
In this study, the roles of global regulators, motility, lipopolysaccharide, and exopolysaccharides were further characterized with respect to biofilm formation on both gallstones and glass surfaces. These studies show the complex nature of biofilms and demonstrate that characteristics observed for each biofilm are unique to the particular culture condition.
American Society for Microbiology.
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24. Prevalence of gallstones in relation to differing treatment rates for biliary disease
This paper attempts to deduce the prevalence of gallstones by the use of previously published necropsy data. These data are interpreted as suggesting that the incidence of gallstone development is similar in North America, Australia, Great Britain, and Norway and is largely independent of age between the third and eighth decades.