Vitamin A is a fat-soluble vitamin that is required for many physiological activities. Short bowel (SB) syndrome is caused by resection of a large part of the small intestine due to various diseases, and SB patients suffer from insufficient absorption of every kind of nutrient, including proteins, fats, carbohydrates, minerals and vitamins. Among them, vitamin A has a trophic effect on intestin...

Intestinal absorption of vitamin D-3 in physiological concentrations was studied in the live unanaesthetised rat. In both the jejunum and the ileum a linear relationship was found between the absorption rate of the vitamin and its intraluminal concentration. Increasing the sodium taurocholate concentration in the perfusate above 5 mM did not change ileal absorption rate but did decrease jejunal...

IN 1940 the physiologist Carl Wiggers claimed, "Delayed recognition of important physiological discoveries frequently continues untenable and wrong points of view.. . Greater mutual efforts ought to be made by clinicians and physiologists for better dissemination, digestion and absorption of important physiological discoveries."1l Although angina pectoris had been described by William Heberden ...

Significant recent work has focused on predicting drug absorption from structure. Several misperceptions regarding the nature of absorption seem to be common. Among these is that intestinal absorption, permeability, fraction absorbed, and, in some cases, even bioavailability, are equivalent properties and can be used interchangeably. A second common misperception is that absorption, permeabilit...

IN 1940 the physiologist Carl Wiggers claimed, "Delayed recognition of important physiological discoveries frequently continues untenable and wrong points of view.. . Greater mutual efforts ought to be made by clinicians and physiologists for better dissemination, digestion and absorption of important physiological discoveries."1l Although angina pectoris had been described by William Heberden ...