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Träfflista för sökning "WFRF:(Håkan Widner) ;pers:(Foltynie Thomas)"

Search: WFRF:(Håkan Widner) > Foltynie Thomas

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1.
  • Kefalopoulou, Zinovia, et al. (author)
  • Long-term clinical outcome of fetal cell transplantation for Parkinson disease : two case reports
  • 2014
  • In: JAMA Neurology. - : American Medical Association (AMA). - 2168-6157 .- 2168-6149. ; 71:1, s. 7-83
  • Journal article (peer-reviewed)abstract
    • IMPORTANCE: Recent advances in stem cell technologies have rekindled an interest in the use of cell replacement strategies for patients with Parkinson disease. This study reports the very long-term clinical outcomes of fetal cell transplantation in 2 patients with Parkinson disease. Such long-term follow-up data can usefully inform on the potential efficacy of this approach, as well as the design of trials for its further evaluation.OBSERVATIONS: Two patients received intrastriatal grafts of human fetal ventral mesencephalic tissue, rich in dopaminergic neuroblasts, as restorative treatment for their Parkinson disease. To evaluate the very long-term efficacy of the grafts, clinical assessments were performed 18 and 15 years posttransplantation. Motor improvements gained gradually over the first postoperative years were sustained up to 18 years posttransplantation, while both patients have discontinued, and remained free of any, pharmacological dopaminergic therapy.CONCLUSIONS AND RELEVANCE: The results from these 2 cases indicate that dopaminergic cell transplantation can offer very long-term symptomatic relief in patients with Parkinson disease and provide proof-of-concept support for future clinical trials using fetal or stem cell therapies.
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2.
  • Loane, Clare, et al. (author)
  • Aberrant nigral diffusion in Parkinson's disease : A longitudinal diffusion tensor imaging study
  • 2016
  • In: Movement Disorders. - : Wiley. - 0885-3185. ; 31:7, s. 6-1020
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Measuring microstructure alterations with diffusion tensor imaging in PD is potentially a valuable tool to use as a biomarker for early diagnosis and to track disease progression. Previous studies have reported a specific decrease of nigral fractional anisotropy in PD. However, to date the effect of disease progression on nigral or striatal diffusion indices has not been fully explored.METHODS: We have conducted a cross-sectional and longitudinal diffusion tensor imaging study in 18 early stage, treated PD patients and 14 age-matched controls. PD patients were scanned on 2 occasions OFF medication, 19.3 months apart (standard deviation = 3.1 months). Longitudinal change of regional nigral and striatal measures of fractional anisotropy and mean diffusivity were calculated using a region-of-interest approach.RESULTS: Region-of-interest analysis demonstrated that at baseline, PD patients and controls did not differ in regard to diffusion indices in any region assessed. A significant difference of nigral fractional anisotropy and mean diffusivity between controls and PD patients at follow-up was detected and confirmed with longitudinal analysis within PD patients. Alterations in striatal regions were not detected in either group or over time.CONCLUSION: Our findings indicate that nigral diffusion measure may be a valuable measure of disease progression. In the future, larger longitudinal studies will confirm whether diffusion indices may serve as sensitive and clinically meaningful measures of disease progression in PD. © 2016 International Parkinson and Movement Disorder Society.
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  • Result 1-4 of 4

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