Summary
The effect of vitamin A-deficiency on jejunal Paneth cells in rats was investigated. Crystalloid particles were observed in secretion granules of Paneth cells from 6 out of 8 rats with vitamin A-deficiency. The particles were similar to those found in Paneth cells under other experimental conditions. Using an immuno-electron-microscopic technique we demonstrated a clear lysozyme immunoreactivity of these particles. In 2 vitamin A-deficient rats tubular structures have been detected in addition to the crystalloid particles. Crystalloid particles or tubular structures were not detectable in a control group of 8 vitamin A-supplemented rats. The morphological alterations of Paneth cells may be correlated to an impaired local immunity of the intestine during vitamin A-deficiency.
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Koch, M.J., Biesalski, H.K., Stofft, E. et al. Crystalloid lysozyme inclusions in Paneth cells of vitamin A-deficient rats. Cell Tissue Res 260, 625–628 (1990). https://doi.org/10.1007/BF00297244
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DOI: https://doi.org/10.1007/BF00297244