Bile production in fasted and fed primates.

Area of Science:

• Gastroenterology
• Hepatology
• Physiology

Background:

• Previous studies noted variations in bile salt independent flow rate between species.
• The influence of bile salt secretion on bile flow has been inconsistent in prior research.

Purpose of the Study:

• To investigate the effect of food availability on bile flow and bile salt secretion in primates.
• To reconcile discrepancies in previous experimental findings regarding bile salt independent flow.

Main Methods:

• Bile flow and bile salt secretion rates were measured in fasted and fed primates.
• Infusions of sodium cholate, sodium taurocholate, and primate bile were administered into the duodenum.

Main Results:

• Bile flow demonstrated a linear relationship with bile salt secretion rate in both fasted and fed states.
• Bile salt independent flow was highly variable in fasted primates but became increased and stabilized upon feeding.

Conclusions:

• Food availability significantly impacts bile salt independent flow rate in primates.
• Variations in experimental design, particularly concerning feeding status, likely explain previous inter-species discrepancies.