Abstract:
:Alzheimer disease (AD) and vascular dementia (VaD) together represent the majority of dementia cases. Since their neuropsychological profiles often overlap and white matter lesions are observed in elderly subjects including AD, differentiating between VaD and AD can be difficult. Characterization of these different forms of dementia would benefit by identification of quantitative imaging biomarkers specifically sensitive to AD or VaD. Parameters of microstructural abnormalities derived from diffusion tensor imaging (DTI) have been reported to be helpful in differentiating between dementias, but only few studies have used them to compare AD and VaD with a voxelwise approach. Therefore, in this study a whole brain statistical analysis was performed on DTI data of 93 subjects (31 AD, 27 VaD, and 35 healthy controls-HC) to identify specific white matter patterns of alteration in patients affected by VaD and AD with respect to HC. Parahippocampal tracts were found to be mainly affected in AD, while VaD showed more spread white matter damages associated with thalamic radiations involvement. The genu of the corpus callosum was predominantly affected in VaD, while the splenium was predominantly affected in AD revealing the existence of specific patterns of alteration useful in distinguishing between VaD and AD. Therefore, DTI parameters of these regions could be informative to understand the pathogenesis and support the etiological diagnosis of dementia. Further studies on larger cohorts of subjects, characterized for brain amyloidosis, will allow to confirm and to integrate the present findings and, furthermore, to elucidate the mechanisms of mixed dementia. These steps will be essential to translate these advances to clinical practice.
journal_name
Front Neuroscijournal_title
Frontiers in neuroscienceauthors
Palesi F,De Rinaldis A,Vitali P,Castellazzi G,Casiraghi L,Germani G,Bernini S,Anzalone N,Ramusino MC,Denaro FM,Sinforiani E,Costa A,Magenes G,D'Angelo E,Gandini Wheeler-Kingshott CAM,Micieli Gdoi
10.3389/fnins.2018.00274subject
Has Abstractpub_date
2018-04-25 00:00:00pages
274eissn
1662-4548issn
1662-453Xjournal_volume
12pub_type
杂志文章abstract::Epilepsy is a serious neurological disorder and is characterized by recurrent and unprovoked seizures. A critical pathological factor in the seizure genesis is neuronal loss. Until now, apart from the known regulatory cell death pathways, ferroptosis is a newly discovered type of cell death with the features of iron a...
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pub_type: 杂志文章
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abstract::The acute phase of stroke is accompanied by functional changes in the activity and interplay of both hemispheres. In healthy subjects, gender is known to impact the functional brain organization. We investigated whether gender influences also acute stroke functional changes. In thirty-five ischemic stroke patients, we...
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pub_type: 杂志文章,评审
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abstract::Introduction: Spasticity is a typical motor disorder in patients affected by stroke. Typically post-stroke rehabilitation consists of repetition of mobilization exercises on impaired limbs, aimed to reduce muscle hypertonia and mitigate spastic reflexes. It is currently strongly debated if the treatment's effectivenes...
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pub_type: 杂志文章,评审
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journal_title:Frontiers in neuroscience
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abstract::Background: Tinnitus is a very common symptom that often causes distress and decreases the patient's quality of life. Apart from the well-known causes, tinnitus can in some cases be elicited by dysfunctions of the cervical spine or the temporomandibular joint (TMJ). To date however, it is unclear whether alleviation o...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2016.00545
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pub_type: 杂志文章
doi:10.3389/fnins.2016.00111
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journal_title:Frontiers in neuroscience
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doi:10.3389/fnins.2013.00182
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journal_title:Frontiers in neuroscience
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doi:10.3389/fnins.2018.00822
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doi:10.3389/fnins.2019.01384
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journal_title:Frontiers in neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in neuroscience
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journal_title:Frontiers in neuroscience
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journal_title:Frontiers in neuroscience
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pub_type: 杂志文章,评审
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