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THE ABSORPTION OF FAT IN PARTIALLY, AND IN COMPLETELY DEPANCREATIZED DOGS
C W McClure1, B Vincent, J H Pratt
1Laboratory of Medicine, Harvard Medical School, Boston.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Pancreatic juice is essential for fat absorption. Even with severe pancreatic damage or complete removal, the intestine can still absorb significant amounts of fat, indicating other mechanisms at play.
Area of Science:
- Gastroenterology
- Digestive Physiology
Background:
- Pancreatic juice plays a crucial role in nutrient digestion and absorption.
- The impact of pancreatic tissue integrity on intestinal fat absorption requires further elucidation.
Purpose of the Study:
- To investigate the relationship between the condition of remaining pancreatic tissue and intestinal fat absorption.
- To determine the necessity of pancreatic secretion for fat absorption.
Main Methods:
- Subcutaneous transplantation of pancreatic juice-secreting tissue in dogs.
- Observation of fat absorption in dogs with varying degrees of pancreatic atrophy and sclerosis.
- Assessment of fat absorption following complete pancreatectomy.
Main Results:
- Dogs with external pancreatic juice secretion showed no increased fat absorption compared to those with atrophic pancreatic remnants.
- Exclusion of pancreatic secretion from the intestine significantly impaired fat absorption.
- Substantial fat absorption occurred even after complete removal of pancreatic tissue.
Conclusions:
- The state of residual pancreatic tissue does not influence intestinal fat absorption capacity.
- Pancreatic secretion is critical for optimal intestinal fat absorption.
- The intestine possesses alternative mechanisms for fat absorption independent of pancreatic enzymes.
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