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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 90 (1995), S. 478-485 
    ISSN: 1432-0533
    Keywords: Key words Chronic constriction injury ; Crush ; Dorsal horn ; Hyperalgesia ; Neurotransmitters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We tested the hypothesis that neurochemical changes in the spinal cord dorsal horn associated with neuropathic pain states differ from those seen in association with non-painful neuropathies. Immunohistochemistry was performed on spinal cord sections from rats with a chronic constriction injury (CCI), which develop hyperalgesia, and from animals with a nerve crush injury, which do not develop hyperalgesia or other signs of a painful syndrome. Immunohistochemistry was quantified by computer-assisted densitometry. Calcitonin gene-related peptide (CGRP) immunoreactivity and substance P (SP) immunoreactivity were decreased from 1 to 4 weeks after injury in CCI and from 2 to 6 weeks in crush. Gamma-aminobutyric acid immunoreactivity was unchanged in both conditions at all time points. Met-enkephalin (Met-enk) immunoreactivity was increased in CCI and unchanged in crush. Although SP and CGRP are involved in pain transmission, we conclude that their decrease in immunoreactivity is not specific for the CCI model, but rather a more general event in nerve de- and regeneration. The increase in immunoreactivity for the opioid peptide Met-enk, however, was only seen in the late phase of CCI, and may be specific for conditions associated with neuropathic pain and its resolution.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 90 (1995), S. 478-485 
    ISSN: 1432-0533
    Keywords: Chronic constriction injury ; Crush ; Dorsal horn ; Hyperalgesia ; Neurotransmitters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We tested the hypothesis that neurochemical changes in the spinal cord dorsal horn associated with neuropathic pain states differ from those seen in association with non-painful neuropathies. Immunohistochemistry was performed on spinal cord sections from rats with a chronic constriction injury (CCI), which develop hyperalgesia, and from animals with a nerve crush injury, which do not develop hyperalgesia or other signs of a painful syndrome. Immunohistochemistry was quantified by computer-assisted densitometry. Calcitonin gene-related peptide (CGRP) immunoreactivity and substance P (SP) immunoreactivity were decreased from 1 to 4 weeks after injury in CCI and from 2 to 6 weeks in crush. Gammaaminobutyric acid immunoreactivity was unchanged in both conditions at all time points. Met-enkephalin (Metenk) immunoreactivity was increased in CCI and unchanged in crush. Although SP and CGRP are involved in pain transmission, we conclude that their decrease in immunoreactivity is not specific for the CCI model, but rather a more general event in nerve de- and regeneration. The increase in immunoreactivity for the opioid peptide Met-enk, however, was only seen in the late phase of CCI, and may be specific for conditions associated with neuropathic pain and its resolution.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Clinical Anatomy 7 (1994), S. 115-124 
    ISSN: 0897-3806
    Keywords: urinary extravasation ; proposed terminology ; Life and Medical Sciences ; Miscellaneous Medical
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: The fascias of the male external genitalia and perineum serve as surgical landmarks and are considered to act as initial barriers to urinary extravasation; thus they are of fundamental importance to the urologist and anatomist. There is little agreement, however, about the naming and function of these fascias because they have been defined inconsistently. The extensive use of eponyms for the fascias adds even further confusion to the proper nomenclature. Our findings, based upon dissection and magnetic resonance imaging (MRI), show that except for the single layer of dartos (smooth muscle) in the scrotum, there are two distinct layers of fascia in the penis and perineum that are continuous with each other and the anterior wall fascias. To minimize confusion, we conclude that the fascial layrs around the penis be termed the superficial and deep penile fascias, and those to which they are continuous in the perineum be termed the membranous layer of the superficial perineal fascia (the fibrous stratum that traverses the superficial fascia) and the deep perineal fascia. Their presumed role in limiting urinary extravasation is based upon relatively few well-detailed report and currently remains poorly understood. However, this may be improved upon in the future through combined application of clinical findings and MRI to individual cases of urinary extravasation. © 1994 Wiley-Liss, Inc.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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