Title |
Immunological and short-term brain volume changes in relapsing forms of multiple sclerosis treated with interferon beta-1a subcutaneously three times weekly: an open-label two-arm trial
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Published in |
BMC Neurology, November 2015
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DOI | 10.1186/s12883-015-0488-9 |
Pubmed ID | |
Authors |
Michael G. Dwyer, Robert Zivadinov, Yazhong Tao, Xin Zhang, Cheryl Kennedy, Niels Bergsland, Deepa P. Ramasamy, Jackie Durfee, David Hojnacki, Bianca Weinstock-Guttman, Brooke Hayward, Fernando Dangond, Silva Markovic-Plese |
Abstract |
Brain volume atrophy is observed in relapsing-remitting multiple sclerosis (RRMS). Brain volume changes were evaluated in 23 patients with RRMS treated with interferon β-1a 44 μg given subcutaneously (SC) three times a week (tiw) and 15 healthy controls. Percentages of whole brain and tissue-specific volume change were measured from baseline (0 months) to 3 months, from 3 to 6 months, and from baseline to 6 months using SIENAX Multi Time Point (SX-MTP) algorithms. Immunological status of patients was also determined and correlations between subsets of T cells and changes in brain volume were assessed. Interferon β-1a 44 μg SC tiw in 23 patients with RRMS resulted in significant reductions in whole brain and gray matter tissue volume early in the treatment course (baseline to 3 months; mean change; -0.95 %; P = 0.030, -1.52 %; P = 0.004, respectively), suggesting a short-term treatment-induced pseudoatrophy effect. From baseline to 6 months, there were significant correlations observed between decreased T- cell expression of IL-17 F and decreased whole brain and brain tissue-specific volume. These findings are consistent with the interpretation of the pseudoatrophy effect as resolution of inflammation following treatment initiation with interferon β-1a 44 μg SC tiw, rather than disease-related tissue loss. ClinicalTrials.gov; NCT01085318. |
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Unknown | 1 | 100% |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
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Unknown | 43 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 9 | 21% |
Student > Ph. D. Student | 4 | 9% |
Other | 3 | 7% |
Student > Postgraduate | 3 | 7% |
Student > Master | 3 | 7% |
Other | 10 | 23% |
Unknown | 11 | 26% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 13 | 30% |
Neuroscience | 6 | 14% |
Nursing and Health Professions | 2 | 5% |
Unspecified | 2 | 5% |
Computer Science | 2 | 5% |
Other | 5 | 12% |
Unknown | 13 | 30% |