Release of immunoreactive galanin in the spinal cord of rats with ankle inflammation

Studies with antibody microprobes

P. J. Hope, C. W. Lang, B. D. Grubb, A. W. Duggan (Lead / Corresponding author)

    Research output: Contribution to journalArticle

    31 Citations (Scopus)

    Abstract

    Antibody microprobes bearing antibodies to the carboxy-terminus of rat galanin were inserted into the spinal cords of anaesthetized normal rats and those in which ankle inflammation had been induced by the unilateral subcutaneous injection of Freund's adjuvant four to six days previously. In normal rats, a basal presence of immunoreactive galanin was detected in the dorsal horn. Similar levels of immuno-reactive galanin were found in the dorsal horn of both sides of the spinal cord in animals with unilateral ankle inflammation. Flexing the ankle or compressing the foot in normal rats failed to alter levels of immunoreactive galanin detected by microprobes. In animals with ankle inflammation, prolonged periods of ankle flexion did release immunoreactive galanin in the ipsilateral dorsal horn. Subsequent noxious ankle compression in these animals did not increase but rather decreased immunoreactive galanin in the dorsal horn to below basal levels. The reason for this decrease is unknown but it may represent an inhibition of release or a depletion of spinal stores of galanin.

    Original languageEnglish
    Pages (from-to)801-807
    Number of pages7
    JournalNeuroscience
    Volume60
    Issue number3
    DOIs
    Publication statusPublished - 1 Jun 1994

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    Galanin
    Ankle
    Spinal Cord
    Inflammation
    Antibodies
    Freund's Adjuvant
    Subcutaneous Injections
    Foot
    Spinal Cord Dorsal Horn

    Cite this

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    abstract = "Antibody microprobes bearing antibodies to the carboxy-terminus of rat galanin were inserted into the spinal cords of anaesthetized normal rats and those in which ankle inflammation had been induced by the unilateral subcutaneous injection of Freund's adjuvant four to six days previously. In normal rats, a basal presence of immunoreactive galanin was detected in the dorsal horn. Similar levels of immuno-reactive galanin were found in the dorsal horn of both sides of the spinal cord in animals with unilateral ankle inflammation. Flexing the ankle or compressing the foot in normal rats failed to alter levels of immunoreactive galanin detected by microprobes. In animals with ankle inflammation, prolonged periods of ankle flexion did release immunoreactive galanin in the ipsilateral dorsal horn. Subsequent noxious ankle compression in these animals did not increase but rather decreased immunoreactive galanin in the dorsal horn to below basal levels. The reason for this decrease is unknown but it may represent an inhibition of release or a depletion of spinal stores of galanin.",
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    Release of immunoreactive galanin in the spinal cord of rats with ankle inflammation : Studies with antibody microprobes. / Hope, P. J.; Lang, C. W.; Grubb, B. D.; Duggan, A. W. (Lead / Corresponding author).

    In: Neuroscience, Vol. 60, No. 3, 01.06.1994, p. 801-807.

    Research output: Contribution to journalArticle

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