J Arnaudies

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Quinacrine can be used for fluorescence microscopy to visualize certain cell bodies and fibres in the myenteric plexus of the intestine, forming a network different from the cholinergic and adrenergic systems. In the Piebald mouse, animal model of congenital megacolon, the quinacrine positive plexus is thin in the distal narrowed segment and well developed(More)
Distribution of fibronectin (FN), a major glycoproteic component of extracellular matrix was studied by an indirect immuno-fluorescence technique using a rabbit anti-FN serum on frozen sections of fresh human tissues. In the extracellular matrix, FN is localized in epithelial and glandular basement membranes (bronchial, digestive, urothelial, prostatic,(More)
The presence of cholinergic nerve fibers is studied in 30 suction rectal biopsy specimens from 5 days to 7 years old children. An increase in numbers and size of cholinergic fibers in the lamina propria and muscularis mucosae and absence of submucosa ganglion cells are related to 7 Hirschsprung's diseases. In the neonates acetylcholinesterase activity may(More)
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