Investigate serial plasma samples of fibroblast growth factor 19 (FGF19) after oral stimulation with chenodeoxycholic acid in the same subjects before and after elective cholecystectomy
Lack of FGF19 and elevated 7-alpha-hydroxy-colestenone (C4) is associated with the bile acid diarrhoea (BAD), a disease with increasing estimated of prevalence. BAD is occasionally triggered by cholecystectomy and FGF19 and C4 is known to be affected by cholecystectomy. The investigators are exploring if FGF19 after oral stimulation can be developed to a universal test for BAD, and need to know how the proposed test is affected by cholecystectomy.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
23
1250 mg CDCA is given with a study meal
Zealand University Hospital
Køge, Denmark
Change in Stimulated Fibroblast Growth Factor 19 (FGF19) From Baseline Before Versus Post Cholecystectomy
Change from baseline to after cholecystectomy in median chenodeoxycholic acid (CDCA) plus meal stimulated FGF19 (delta 0 min to 150 min after stimulation)
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Chenodeoxycholic Acid (CDCA) Absorption to Plasma From Baseline Before Versus After Cholecystectomy
Change from baseline to after cholecystectomy in median unconjugated CDCA plus meal stimulated absorption of unconjugated CDCA to measured in plasma (total area under the CDCA curve with measurement at fasting ie. t=0 minutes and subsequently at 60, 90, 120, and finally at 150minutes.
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Fasting 7-alpha-hydroxy-cholestenone (C4) From Baseline Before Versus After Cholecystectomy
Change from baseline to after cholecystectomy in fasting C4
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Lipid Status From Baseline Before Versus After Cholecystectomy
Change from baseline to after cholecystectomy in plasma triglycerides
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Stool Frequency From Baseline Before Versus After Cholecystectomy
Change from baseline to after cholecystectomy in number of stools as a mean of a seven-day diary baseline versus after cholecystectomy. That is the diary results for each study participant is tallied using mean values. The tallying of these diary results is done using medians. Therefore the unit used is 'mean stools per day' and this is reported with medians
Time frame: baseline and 3 - 5 months after cholecystectomy
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Change in Stool Pattern Correlated to FGF19
Spearman correlation between change from baseline to after cholecystectomy in FGF19 and in mean number of stools
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Patient Reported Diarrhea Symptoms Correlated With Change in C4 From Baseline Before Versus After Cholecystectomy
Correlation between patient reported frequency of diarrhea (gastrointestinal quality of life index item 31) and fasting C4 before versus after cholecystectomy
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in C4 Total Area Under the Curve From Baseline Before Versus After Cholecystectomy
Change in total AUC for C4 between visit 1 and visit 2
Time frame: before cholecystectomy and 3-5 months after cholecystectomy
Change in Fasting FGF19 From Baseline Before Versus After Cholecystectomy
change in fasting FGF19 before versus after cholecystectomy
Time frame: before and 3-5 months after cholecystectomy
Change in Patient Reported Diarrhea Symptoms Correlated With Change in FGF19 From Baseline Before Versus After Cholecystectomy
Correlation between patient reported frequency of diarrhea (gastrointestinal quality of life index item 31) and fasting FGF19 before versus after cholecystectomy
Time frame: baseline and 3 - 5 months after cholecystectomy
Change in Stool Consistency (Bristol Stool Type) From Baseline Before Versus After Cholecystectomy
Change from baseline to after cholecystectomy in mean Bristol type per stool as of a seven-day diary baseline versus after cholecystectomy. The Bristol scale divides stool into seven categories from 1 (hard lumps) to 7 (completely watery stool). The diary shows pictograms with short text descriptions.
Time frame: baseline and 3 - 5 months after cholecystectomy