Anna Fuller Postdoctoral Fellow. Department of Anatomy, Royal Medical College, Copenhagen, Denmark.
Fine structural observations of the absorption of lipid particles in the small intestine of the rat†
Article first published online: 3 FEB 2005
Copyright © 1965 Wiley-Liss, Inc.
The Anatomical Record
Volume 152, Issue 3, pages 325–349, July 1965
How to Cite
Rostgaard, R. and Barrnett, R. J. (1965), Fine structural observations of the absorption of lipid particles in the small intestine of the rat. Anat. Rec., 152: 325–349. doi: 10.1002/ar.1091520312
This work was supported by grants from the National Institutes of Arthritis and Metabolic Diseases (AM 03688) and from the National Cancer Institute (5T1-CA-5055), National Institutes of Health, Department of Health, Education and Welfare.
- Issue published online: 3 FEB 2005
- Article first published online: 3 FEB 2005
Globules or particles of material, 50 Å to 1000 Å in diameter, stained with Pb++ to become dense, occurred between, on, or within the microvilli of the absorptive cells of the proximal jejunum of rats which had been fasted for 48 hours and fed corn oil one hour before sacrifice. This material was demonstrable in tissues fixed in glutaraldehyde, osmium tetroxide, or both fixatives providing Pb++ staining occurred. No or very little stainable material was present in fasted rats. These findings were correlated with in vitro studies on negatively stained or Pb++ stained solutions of micelles. The absorption of particulate lipid by the microvilli of the epithelial cells of the small intestine is discussed.