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  • 1
    Electronic Resource
    Electronic Resource
    Calcitonin gene-related peptide and substance P in the pharynx and lung of the bullfrog, Rana catesbeiana (1994)
    Springer
    Cell & tissue research 279 (1994), S. 115-121 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Pharynx ; Lung ; Calcitonin gene-related peptide ; Substance P ; Coexistence ; Immunohistochemistry ; Rana catesbeiana (Anura)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Indirect double immunofluorescence labelling in the pharynx and lung of the bullfrog, Rana catesbeiana, demonstrated the occurrence, distribution, and coexistence of two neuropeptides. In the pharynx, immunoreactive calcitonin gene-related peptide (CGRP) and substance P (SP) were localized in nerve fibers distributed within and just beneath the ciliated epithelium. In the lung, CGRP and SP were localized in nerve fibers in five principal locations: 1) within the smooth muscle layer in the interfaveolar septa; 2) in the luminal thickened edges of the septa; 3) around the pulmonary vasculature; 4) within, and 5) under the ciliated epithelium. Within the smooth muscle layer in the septa, luminal thickened septa, and around blood vessels, almost all fibers showed coexistence of CGRP and SP. Within and just beneath the ciliated epithelium in the thickened septa, all fibers showed coexistence of CGRP and SP. No immunoreactivity for vasoactive intestinal polypeptide, neuropeptide Y, galanin, somatostatin, FMRFamide, and leucine- and methionine-enkephalins was detected in the nerve fibers within the larynx and the lung. Together with our previous data, the present findings suggest that peptidergic mechanisms are involved in the regulation of amphibian respiratory systems throughout their life.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050268
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  • 2
    Electronic Resource
    Electronic Resource
    Calcitonin gene-related peptide and substance P in the pharynx and lung of the bullfrog, Rana catesbeiana (1995)
    Springer
    Cell & tissue research 279 (1995), S. 115-121 
    Details
    ISSN: 1432-0878
    Keywords: Pharynx ; Lung ; Calcitonin gene-related peptide ; Substance P ; Coexistence ; Immunohistochemistry ; Rana catesbeiana (Anura)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Indirect double immunofluorescence labelling in the pharynx and lung of the bullfrog, Rana catesbeiana, demonstrated the occurrence, distribution, and coexistence of two neuropeptides. In the pharynx, immunoreactive calcitonin gene-related peptide (CGRP) and substance P (SP) were localized in nerve fibers distributed within and just beneath the ciliated epithelium. In the lung, CGRP and SP were localized in nerve fibers in five principal locations: 1) within the smooth muscle layer in the interfaveolar septa; 2) in the luminal thickened edges of the septa; 3) around the pulmonary vasculature; 4) within, and 5) under the ciliated epithelium. Within the smooth muscle layer in the septa, luminal thickened septa, and around blood vessels, almost all fibers showed coexistence of CGRP and SP. Within and just beneath the ciliated epithelium in the thickened septa, all fibers showed coexistence of CGRP and SP. No immunoreactivity for vasoactive intestinal polypeptide, neuropeptide Y, galanin, somatostatin, FMRFamide, and leucine-and methionine-enkephalins was detected in the nerve fibers within the larynx and the lung. Together with our previous data, the present findings suggest that peptidergic mechanisms are involved in the regulation of amphibian respiratory systems throughout their life.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00300698
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  • 3
    Electronic Resource
    Electronic Resource
    Localization of immunoreactive neuropeptides in the kidney of the bullfrog, Rana catesbeiana, by immunofluorescence (1994)
    Springer
    Cell & tissue research 278 (1994), S. 41-44 
    Details
    ISSN: 1432-0878
    Keywords: Kidney ; Substance P ; Neuropeptide Y ; Calcitonin gene-related peptide ; Coexistence ; Immunofluorescence ; Rana catesbeiana (Anura)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Indirect double immunofluorescence labelling for demonstrating nine neuropeptides in the kidney of the bullfrog, Rana catesbeiana, revealed for the first time the occurrence, distribution, and coexistence of certain neuropeptides in the kidney of the submammalian vertebrates. Substance P, neuropeptide Y, and calcitonin generelated peptide were localized in nerve fibers distributed along the afferent arterioles connected with the glomeruli, and along the capillary network between uriniferous tubules. Neuropeptide Y and calcitonin gene-related peptide immunoreactive fibers were more numerous than substance P immunoreactive fibers. In these two regions, about one half of the neuropeptide Y or calcitonin in gene-related peptide fibers contained substance P. No immunoreactivity of vasoactive intestinal polypeptide, somatostatin, FMRFamide, or leucine- and methionine-enkephalins was detected in the bullfrog kidney.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305776
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  • 4
    Electronic Resource
    Electronic Resource
    Localization of immunoreactive neuropeptides in the kidney of the bullfrog, Rana catesbeiana, by immunofluorescence (1994)
    Springer
    Cell & tissue research 278 (1994), S. 41-44 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Kidney ; Substance P ; Neuropeptide Y ; Calcitonin gene-related peptide ; Coexistence ; Immunofluorescence ; Rana catesbeiana (Anura)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Indirect double immunofluorescence labelling for demonstrating nine neuropeptides in the kidney of the bullfrog, Rana catesbeiana, revealed for the first time the occurrence, distribution, and coexistence of certain neuropeptides in the kidney of the submammalian vertebrates. Substance P, neuropeptide Y, and calcitonin gene-related peptide were localized in nerve fibers distributed along the afferent arterioles connected with the glomeruli, and along the capillary network between uriniferous tubules. Neuropeptide Y and calcitonin gene-related peptide immunoreactive fibers were more numerous than substance P immunoreactive fibers. In these two regions, about one half of the neuropeptide Y or calcitonin gene-related peptide fibers contained substance P. No immunoreactivity of vasoactive intestinal polypeptide, somatostatin, FMRFamide, or leucine- and methionine-enkephalins was detected in the bullfrog kidney.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305776
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  • 5
    Electronic Resource
    Electronic Resource
    Distribution of neuropeptide-containing nerve fibers in the human submandibular gland, with special reference to the difference between serous and mucous acini (1997)
    Springer
    Cell & tissue research 288 (1997), S. 25-31 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Submandibular gland ; Neuropeptide Y ; Vasoactive intestinal polypeptide ; Galanin ; Substance P ; Calcitonin gene-related peptide ; Immunohistochemistry ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Distribution of neuropeptide Y (NPY)-, vasoactive intestinal polypeptide (VIP)-, galanin (GAL)-, substance P (SP)-, and calcitonin gene-related peptide (CGRP)-immunoreactive nerve fibers in the human submandibular gland was examined by the peroxidase-antiperoxidase method with attention to high-quality fixation and the condition of patients. NPY-, VIP-, and GAL-immunoreactive varicose fibers were densely distributed around the acini and ducts. Some of these fibers extended between acinar cells. The density of SP- and CGRP-immunoreactive fibers was relatively low. The number of NPY-, VIP-, and GAL-immunoreactive fibers around the mucous acini was significantly higher than around the serous acini. In the perivasculature, NPY-immunoreactive fibers were more numerous than other immunoreactive fibers. No somatostatin-, leucine-, or methionine-enkephalin-immunoreactive fibers were detected. Our findings suggest that a large number of periacinar VIP-, NPY-, and GAL-immunoreactive fibers may participate in regulating the synthesis of saliva and its secretion. Since the VIP-, NPY-, and GAL-immunoreactive fibers are more numerous around the mucous acini than around the serous ones, these fibers may take part more actively in regulating the secretory mechanisms in the mucous acini than in the serous ones. The relatively low number of CGRP- and SP-immunoreactive fibers suggests that they are less involved in the function of the human submandibular gland. Perivascular peptidergic fibers, especially NPY-immunoreactive fibers, may be involved in controlling local blood flow in this gland.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050789
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