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Changes in sensorimotor network activation after botulinum toxin type A injections in patients with cervical dystonia: a functional MRI study
M. Nevrlý, P. Hluštík, P. Hok, P. Otruba, Z. Tüdös, P. Kaňovský,
Jazyk angličtina Země Německo
Typ dokumentu časopisecké články
Grantová podpora
NV16-30210A
MZ0
CEP - Centrální evidence projektů
Digitální knihovna NLK
Plný text - Článek
NLK
ProQuest Central
od 2001-01-01 do Před 1 rokem
Medline Complete (EBSCOhost)
od 2000-01-01 do Před 1 rokem
Nursing & Allied Health Database (ProQuest)
od 2001-01-01 do Před 1 rokem
Health & Medicine (ProQuest)
od 2001-01-01 do Před 1 rokem
Psychology Database (ProQuest)
od 2001-01-01 do Před 1 rokem
- MeSH
- aferentní nervové dráhy diagnostické zobrazování účinky léků MeSH
- botulotoxiny typu A terapeutické užití MeSH
- dospělí MeSH
- kyslík krev MeSH
- lidé středního věku MeSH
- lidé MeSH
- magnetická rezonanční tomografie metody MeSH
- neparametrická statistika MeSH
- nervosvalové látky terapeutické užití MeSH
- počítačové zpracování obrazu MeSH
- psychomotorický výkon účinky léků MeSH
- senioři MeSH
- senzorimotorický kortex diagnostické zobrazování účinky léků MeSH
- tortikolis * diagnostické zobrazování farmakoterapie patofyziologie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Botulinum toxin type A (BoNT) is considered an effective therapeutic option in cervical dystonia (CD). The pathophysiology of CD and other focal dystonias has not yet been fully explained. Results from neurophysiological and imaging studies suggest a significant involvement of the basal ganglia and thalamus, and functional abnormalities in premotor and primary sensorimotor cortical areas are considered a crucial factor in the development of focal dystonias. Twelve BoNT-naïve patients with CD were examined with functional MRI during a skilled hand motor task; the examination was repeated 4 weeks after the first BoNT injection to the dystonic neck muscles. Twelve age- and gender-matched healthy controls were examined using the same functional MRI paradigm without BoNT injection. In BoNT-naïve patients with CD, BoNT treatment was associated with a significant increase of activation in finger movement-induced fMRI activation of several brain areas, especially in the bilateral primary and secondary somatosensory cortex, bilateral superior and inferior parietal lobule, bilateral SMA and premotor cortex, predominantly contralateral primary motor cortex, bilateral anterior cingulate cortex, ipsilateral thalamus, insula, putamen, and in the central part of cerebellum, close to the vermis. The results of the study support observations that the BoNT effect may have a correlate in the central nervous system level, and this effect may not be limited to cortical and subcortical representations of the treated muscles. The results show that abnormalities in sensorimotor activation extend beyond circuits controlling the affected body parts in CD even the first BoNT injection is associated with changes in sensorimotor activation. The differences in activation between patients with CD after treatment and healthy controls at baseline were no longer present.
Citace poskytuje Crossref.org
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- $a Nevrlý, Martin $7 xx0237697 $u Department of Neurology, University Hospital and Faculty of Medicine and Dentistry of Palacký University, I. P. Pavlova 6, 775 20, Olomouc, Czech Republic. martin.nevrly@fnol.cz.
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