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  • Title: Effects of interferon-beta 1a on the hypothalamic-pituitary-adrenal axis, leukocyte distribution and mood states in multiple sclerosis patients: results of a 1-year follow-up study.
    Author: Goebel MU, Czolbe F, Becker H, Janssen OE, Schedlowski M, Limmroth V.
    Journal: Eur Neurol; 2005; 53(4):182-7. PubMed ID: 15947464.
    Abstract:
    Acute interferon-beta (IFN-beta) administration transiently activates the hypothalamic-pituitary-adrenal (HPA) axis, increases granulocytes, and reduces lymphocytes in peripheral blood. To test whether these effects are still present after long-term treatment, 13 patients with relapsing-remitting multiple sclerosis were analyzed at baseline, and 1, 2, 4, and 8 h after IFN-beta 1a injection at two occasions: at the initial administration and after 1 year of continuous treatment. Long-term treatment reduced the responsiveness of the HPA axis to the injection, and abolished the distributional changes in leukocyte numbers. One-year treatment with IFN-beta 1a did not induce mood alterations as assessed by the Profile of Mood States. These results suggest that long-term IFN-beta therapy has a profound impact on leukocyte distribution and the neuroendocrine response to the drug.
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