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- Burgunder, J-M., et al.
(författare)
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Molecular diagnosis of neurogenetic disorders : motoneuron, peripheral nerve and muscle disorders
- 2012. - 2
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Ingår i: European handbook of neurological management. - Oxford, UK : Wiley-Blackwell. - 9781444346268 - 9781405185349 ; , s. 97-109
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Bokkapitel (refereegranskat)abstract
- Objectives: The EFNS guidelines on the molecular diagnosis of motoneuron disorders, neuropathies and myopathies are designed to summarize the possibilities and limitations of molecular genetic techniques and to provide diagnostic criteria for deciding when a molecular diagnostic work-up is indicated.Search strategy: To collect data about the planning, conditions and performance of molecular diagnosis of these disorders, a literature search in various electronic databases was carried out and original papers, meta-analyses, review papers and guideline recommendations reviewed.Results: The best level of evidence for genetic testing recommendation (Level B) can be found for the disorders with specific presentations, including familial ALS, spinal and bulbar muscular atrophy, Charcot-Marie-Tooth 1A, myotonic dystrophy and Duchenne muscular dystrophy. For a number of less common disorders a precise description of the phenotype, including the use of immunological methods in the case of myopathies, is considered good clinical practice to guide molecular genetic testing.Conclusion: These guidelines are provisional and the availability of molecular-genetic epidemiological data in the future about the neurogenetic disorders under discussion in the present paper will allow improved recommendation with an increased level of evidence.
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- Burgunder, J-M, et al.
(författare)
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EFNS guidelines for the molecular diagnosis of neurogenetic disorders : motoneuron, peripheral nerve and muscle disorders
- 2011
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Ingår i: European Journal of Neurology. - : Wiley-Blackwell. - 1351-5101 .- 1468-1331. ; 18:2, s. 207-E20
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: These EFNS guidelines on the molecular diagnosis of motoneuron disorders, neuropathies and myopathies are designed to summarize the possibilities and limitations of molecular genetic techniques and to provide diagnostic criteria for deciding when a molecular diagnostic work-up is indicated. Search strategy: To collect data about planning, conditions and performance of molecular diagnosis of these disorders, a literature search in various electronic databases was carried out and original papers, meta-analyses, review papers and guideline recommendations reviewed. Results: The best level of evidence for genetic testing recommendation (B) can be found for the disorders with specific presentations, including familial amyotrophic lateral sclerosis, spinal and bulbar muscular atrophy, Charcot-Marie-Tooth 1A, myotonic dystrophy and Duchenne muscular dystrophy. For a number of less common disorders, a precise description of the phenotype, including the use of immunologic methods in the case of myopathies, is considered as good clinical practice to guide molecular genetic testing. Conclusion: These guidelines are provisional and the future availability of molecular-genetic epidemiological data about the neurogenetic disorders under discussion in this article will allow improved recommendation with an increased level of evidence.
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- Antonini, A., et al.
(författare)
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Effect and safety of duodenal levodopa infusion in advanced Parkinson's disease: a retrospective multicenter outcome assessment in patient routine care
- 2013
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Ingår i: Journal of Neural Transmission. - : Springer Science and Business Media LLC. - 0300-9564 .- 1435-1463. ; 120:11, s. 1553-1558
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Tidskriftsartikel (refereegranskat)abstract
- Duodenal levodopa infusion represents an effective strategy to manage motor and non-motor complications in patients with advanced Parkinson's disease (PD). However, most published clinical series regard small numbers of patients and do not exceed 1 year follow-up. In this multi-national observational cohort study conducted in seven specialised PD clinics and university hospitals we assessed long-term safety and outcome of chronic treatment with intra-duodenal levodopa infusions in a large population of patients with advanced PD. The starting population consisted of 98 treated patients (safety population). We report clinical outcomes of 73 patients with subsequent efficacy assessment(s) (efficacy population) over a follow-up period up to 2 years. Follow-up periods and collection of clinical observations varied based on individual routine care program. At last follow-up there was a significant (p a parts per thousand currency sign 0.05) reduction in duration of "Off" periods as well as dyskinesia duration and severity that was associated with an improvement of quality of life. Twenty three patients (25.3 % of the safety population) withdraw, due to adverse drug reaction (5), procedure and device related events (7), compliance (3) and lack of efficacy (8). The mean duration for last value reported after baseline (LV) was 608 +/- A 292 days (median: 697 days). Our results demonstrate significant and sustained benefit over a long observation period in motor complications and in quality of life following a change from oral pulsatile to continuous levodopa delivery. The relatively large number of withdrawals reflects the current use of duodenal levodopa infusion in very advanced PD patients.
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- Polzer, S., et al.
(författare)
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Automatic identification and validation of planar collagen organization in the aorta wall with application to abdominal aortic aneurysm
- 2013
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Ingår i: Microscopy and Microanalysis. - 1431-9276 .- 1435-8115. ; 19:6, s. 1395-1404
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Tidskriftsartikel (refereegranskat)abstract
- Arterial physiology relies on a delicate three-dimensional (3D) organization of cells and extracellular matrix, which is remarkably altered by vascular diseases like abdominal aortic aneurysms (AAA). The ability to explore the micro-histology of the aorta wall is important in the study of vascular pathologies and in the development of vascular constitutive models, i.e., mathematical descriptions of biomechanical properties of the wall. The present study reports and validates a fast image processing sequence capable of quantifying collagen fiber organization from histological stains. Powering and re-normalizing the histogram of the classical fast Fourier transformation (FFT) is a key step in the proposed analysis sequence. This modification introduces a powering parameter w, which was calibrated to best fit the reference data obtained using classical FFT and polarized light microscopy (PLM) of stained histological slices of AAA wall samples. The values of w = 3 and 7 give the best correlation (Pearson's correlation coefficient larger than 0.7, R 2 about 0.7) with the classical FFT approach and PLM measurements. A fast and operator independent method to identify collagen organization in the arterial wall was developed and validated. This overcomes severe limitations of currently applied methods like PLM to identify collagen organization in the arterial wall.
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- Tarasov, A, et al.
(författare)
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Quantized Magnetic Confinement in Quantum Wires
- 2010
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Ingår i: PHYSICAL REVIEW LETTERS. - : American Physical Society. - 0031-9007. ; 104:18, s. 186801-
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Tidskriftsartikel (refereegranskat)abstract
- Ballistic quantum wires are exposed to longitudinal profiles of perpendicular magnetic fields composed of a spike and a homogeneous part. An asymmetric magnetoconductance peak as a function of the homogeneous magnetic field is found, comprising quantized conductance steps in the interval where the homogeneous magnetic field and the magnetic barrier have identical polarities, and a characteristic shoulder with several resonances in the interval of opposite polarities. The observations are interpreted in terms of inhomogeneous diamagnetic shifts of the quantum wire modes leading to magnetic confinement.
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