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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Occurrence and distribution of neuropeptide-Y-immunoreactive nerves in the respiratory tract and middle ear.

Nerve fibres displaying neuropeptide-Y (NPY) immunoreactivity are abundantly distributed in the respiratory tract of cats, guinea-pigs, rats and mice. Fine beaded NPY fibres were seen in whole-mount spreads of the middle-ear mucosa. In the nasal mucosa and in the wall of the Eustachian tube NPY fibres were numerous around arteries and arterioles but sparse in the vicinity of veins; single fibres were found close to the acini of seromucous glands. In the tracheobronchial wall NPY fibres occurred in the proximity of blood vessels, in the subepithelial layer and in the smooth muscle. Surgical and chemical (6-hydroxydopamine treatment) sympathectomy resulted in disappearance of adrenergic and NPY-containing nerve fibres in the nasal mucosa. Sequential staining with antibodies against dopamine-beta-hydroxylase (DBH) and NPY revealed that DBH and NPY occur in the same perivascular nerve fibres in the nasal mucosa. The distribution of NPY fibres in the respiratory tract suggests multiple functions of NPY, such as regulation of local blood flow, glandular secretion and smooth muscle activity.[1]

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