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  • Nitric oxide synthase  (3)
  • Dorsal root ganglia  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Chemical codes of sensory neurons innervating the guinea-pig adrenal gland (1994)
    Springer
    Cell & tissue research 279 (1994), S. 169-181 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Adrenal gland ; Dorsal root ganglia ; Immunohistochemistry ; Neurofilament ; Neuronal tracing ; Neuropeptides ; Nitric oxide synthase ; Substance P ; Guinea-pig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Retrograde neuronal tracing in combination with double-labelling immunofluorescence was applied to distinguish the chemical coding of guinea-pig primary sensory neurons projecting to the adrenal medulla and cortex. Seven subpopulations of retrogradely traced neurons were identified in thoracic spinal ganglia T1-L1. Five subpopulations contained immunolabelling either for calcitonin gene-related peptide (CGRP) alone (I), or for CGRP, together with substance P (II), substance P/dynorphin (III), substance P/cholecystokinin (IV), and substance P/nitric oxide synthase (V), respectively. Two additional subpopulations of retrogradely traced neurons were distinct from these groups: neurofilament-immunoreactive neurons (VI), and cell bodies that were nonreactive to either of the antisera applied (VII). Nerve fibres in the adrenal medulla and cortex were equipped with the mediator combinations I, II, IV and VI. An additional meshwork of fibres solely labelled for nitric oxide synthase was visible in the medulla. Medullary as well as cortical fibres along endocrine tissue apparently lacked the chemical code V, while in the external cortex some fibres exhibited code III. Some intramedullary neuronal cell bodies revealed immunostaining for nitric oxide synthase, CGRP or substance P, providing an additional intrinsic adrenal innervation. Perikarya, immunolabelled for nitric oxide synthase, however, were too few to match with the large number of intramedullary nitric oxide synthase-immunoreactive fibres. A non-sensory participation is also supposed for the particularly dense intramedullary network of solely neurofilament-immunoreactive nerve fibres. The findings give evidence for a differential sensory innervation of the guinea-pig adrenal cortex and medulla. Specific sensory neuron subpopulations suggest that nervous control of adrenal functions is more complex than hitherto believed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050272
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Increased expression of nitric oxide synthase in a subpopulation of rat sympathetic neurons after axotomy – correlation with vasoactive intestinal peptide (1996)
    Springer
    Cell & tissue research 285 (1996), S. 419-425 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Immunohistochemistry ; In situ hybridization ; Sympathetic neuron ; Nitric oxide synthase ; Vasoactive intestinal peptide ; Axotomy ; Neuroplasticity ; Rat (Sprague Dawley)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Nitric oxide synthase (NOS) expression is increased in peripheral sensory and central motor neurons after axotomy. By applying double-labelling immunofluorescence and non-radioactive in situ hybridization, we have investigated the regulation of NOS in axotomized sympathetic rat superior cervical ganglia. Furthermore, co-localization of NOS with vasoactive intestinal peptide, which is also induced by axotomy, has been examined. Very few (〈0.1%) NOS-expressing neurons are observed in control ganglia. Some large cell bodies located at the exit of the internal carotid nerve are additionally immunoreactive for vasoactive intestinal peptide. One week following postganglionic axotomy, the number of NOS-immunoreactive and NOS mRNA-expressing neurons increases but does not exceed 2% of the whole neuronal population. About 20% of these neurons are also immunoreactive for vasoactive intestinal peptide. Preganglionic nerve fibre meshworks that are immunoreactive for NOS in untreated ganglia disappear after ganglionic decentralization, whereas some presumably postganglionic fibres remain visible after combined axotomy and decentralization. The findings are indicative of an increased synthesis of NOS in a small subset of postganglionic neurons of the rat superior cervical ganglion, possibly because of the loss of target-derived factors that inhibit nitric oxide synthesis under normal conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050658
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical codes of sensory neurons innervating the guinea-pig adrenal gland (1995)
    Springer
    Cell & tissue research 279 (1995), S. 169-181 
    Details
    ISSN: 1432-0878
    Keywords: Adrenal gland ; Dorsal root ganglia ; Immunohistochemistry ; Neurofilament ; Neuronal tracing ; Neuropeptides ; Nitric oxide synthase ; Substance P ; Guinea-pig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Retrograde neuronal tracing in combination with double-labelling immunofluorescence was applied to distinguish the chemical coding of guinea-pig primary sensory neurons projecting to the adrenal medulla and cortex. Seven subpopulations of retrogradely traced neurons were identified in thoracic spinal ganglia T1-L1. Five subpopulations contained immunolabelling either for calcitonin gene-related peptide (CGRP) alone (I), or for CGRP, together with substance (P (II), substance P/dynorphin (III), substance P/cholecystokinin (IV), and substance P/nitric oxide synthase (V), respectively. Two additional subpopulations of retrogradely traced neurons were distinct from these groups: neurofilament-immunoreactive neurons (VI), and cell bodies that were nonreactive to either of the antisera applied (VII). Nerve fibres in the adrenal medulla and cortex were equipped with the mediator combinations I, II, IV and VI. An additional meshwork of fibres solely labelled for nitric oxide synthase was visible in the medulla. Medullary as well as cortical fibres along endocrine tissue apparently lacked the chemical code V, while in the external cortex some fibres exhibited code III. Some intramedullary neuronal cell bodies revealed immunostaining for nitric oxide synthase, CGRP or substance P, providing an additional intrinsic adrenal innervation. Perikarya, immunolabelled for nitric oxide synthase, however, were too few to match with the large number of intramedullary nitric oxide synthase-immunoreactive fibres. A non-sensory participation is also supposed for the particularly dense intramedullary network of solely neurofilament-immunoreactive nerve fibres. The findings give evidence for a differential sensory innervation of the guineapig adrenal cortex and medulla. Specific sensory neuron subpopulations suggest that nervous control of adrenal functions is more complex than hitherto believed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00300702
    Location Call Number Expected Availability
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    Paper (German National Licenses)
    Fulltext
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