Bile Acids in Health and Disease

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Abstract
Over the last quarter of a century Danish research on bile acids has comprised studies of their physical and chemical properties, their physiology, pathophysiology, metabolism, and kinetics, and their clinical applicability. In the beginning of the period a major contribution was made to the understanding of the factors involved in the solubility of cholesterol in bile. The growing international understanding of the potential importance of the bile acids in health and disease gave raise to a substantial Danish contribution in the 1970s and 1980s in parallel with international achievements. Emphasis was on the possible clinical implications of bile acids. Studies on physiology and pathophysiology were in focus. Patients who have had an intestinal bypass operation for obesity served as a model for obtaining new knowledge on various aspects of the properties of the bile acids. Also the analytical methods were improved. Important physiological research on the mechanisms of hepatic bile flow was conducted. An intestinal perfusion model served as a tool providing information on absorption kinetics and on transmucosal water and electrolyte movements. The gallstone disease, liver diseases, inflammatory bowel disease, fat malabsorption, and other intestinal disorders were studied. The 'idiopathic ileopathy' as a cause for bile acid malabsorption causing diarrhoea was established as a new disorder. Thus, in the time period concerned, substantial Danish contributions emerged on major and minor topics of the bile acid field.