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  • 1
    Electronic Resource
    Electronic Resource
    Occurrence and distribution of calcitonin gene-related peptide in the mammalian respiratory tract and middle ear (1985)
    Springer
    Cell & tissue research 241 (1985), S. 551-555 
    Details
    ISSN: 1432-0878
    Keywords: Calcitonin gene-related peptide (CGRP) ; Neuropeptide immunocytochemistry ; Respiratory tract ; Ear, middle ; Sensory innvervation ; Mammals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Nerve fibres displaying immunoreactivity to calcitonin gene-related peptide (CGRP) are abundantly distributed in the respiratory tract of man, dog, cat, guineapig, rat and mouse. Numerous fine, beaded CGRP fibres were seen in the middle ear mucosa, and a moderate supply was found in the ear drum. In the nasal mucosa and in the wall of the Eustachian tube CGRP fibres occurred around blood vessels, arteries in particular. A conspiciously rich supply of CGRP fibres was seen beneath and within the epithelium. In addition, a few fibres were seen in smooth muscle bundles and close to sero-mucous glands. In the tracheo-bronchial wall CGRP fibres were distributed beneath and within the epithelium, in vascular and non-vascular smooth muscle and sometimes close to small glands. A few CGRP-immunoreactive endocrine-like cells were, in addition, distributed in the tracheal epithelium of cat, rat and mouse. The trigeminal, spinal and nodose ganglia, studied in rats and guinea-pigs, harboured numerous CGRP-immunoreactive nerve cell bodies. The cervical sympathetic ganglia were devoid of immunoreactive neuronal perikarya. Surgical and chemical (6-hydroxydopamine treatment) sympathectomy did not affect the number and distribution of CGRP fibres. The distribution of CGRP fibres in the respiratory tract suggests that CGRP may take part in sensory transmission. In addition, CGRP may affect the regulation of local blood flow, smooth muscle tone and glandular secretion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00214575
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neuronal galanin is widely distributed in the chicken respiratory tract and coexists with multiple neuropeptides (1989)
    Springer
    Cell & tissue research 256 (1989), S. 95-103 
    Details
    ISSN: 1432-0878
    Keywords: Respiratory tract ; Autonomic innervation ; Neuropeptide immunocytochemistry ; Galanin ; Neu-ropeptide coexistence ; Chicken
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The mammalian airways are known to be richly innervated by several types of peptide-containing nerve fibers. Galanin-containing fibers are, however, comparatively few. The results of the present immunocytochemical study indicate that the chicken airways receive a notably dense supply of galanin-storing fibers. Other major neuropeptides were neuropeptide Y, vasoactive intestinal peptide and substance P. Nerve fibers containing these peptides were distributed in the trachea, main bronchi, and the lungs. Minor nerve fiber populations contained calcitonin generelated peptide, enkephalin and gastrin-releasing peptide. In the trachea and main bronchi the majority of peptidecontaining nerve fibers was distributed beneath and sometimes also within the epithelium; fibers were fewer in the lamina propria. In the lungs they occurred both in association with the epithelium of small bronchi and in the septa. Adrenergic nerves (using tyrosine hydroxylase as marker) were predominantly distributed in the lamina propria among bundles of smooth muscle and blood vessels. In the nerve fibers associated with the epithelium and in nerve cell bodies in local ganglia of the tracheal wall, galanin was found to coexist with several other neuropeptides (neuropeptide Y, vasoactive intestinal peptide and substance P) suggesting co-expression of multiple neuropeptide genes in the same population of neurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00224722
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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