Alzheimers Dement
Department of Neurology, Clinical Dementia Center, University Medical Center Göttingen, Göttingen, Germany; German Center for Neurodegenerative Diseases (DZNE), Site Göttingen, Germany.
Published: June 2017
Introduction: Accurate diagnosis of prion diseases and discrimination from alternative dementias gain importance in the clinical routine, but partial overlap in cerebrospinal fluid (CSF) biomarkers impedes absolute discrimination in the differential diagnostic context.
Methods: We established the clinical parameters for prion disease diagnosis for the quantification of CSF α-synuclein in patients with sporadic (n = 234) and genetic (n = 56) prion diseases, in cases with cognitive impairment/dementia or neurodegenerative disease (n = 278), and in the neurologic control group (n = 111).
Results: An optimal cutoff value of 680 pg/mL α-synuclein results in 94% sensitivity and 96% specificity when diagnosing sporadic Creutzfeldt-Jakob disease (CJD). Genetic CJD cases showed increased CSF α-synuclein values. No increased α-synuclein levels were detected in non-CJD cases with rapid progression course.
Discussion: Detection of α-synuclein in the CSF of patients with suspected CJD is a valuable diagnostic test reaching almost full discrimination from non-prion disease cases. These data highlight the utility of CSF α-synuclein quantification in front of classical CSF biomarkers in clinical routine.
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http://dx.doi.org/10.1016/j.jalz.2016.09.013 | DOI Listing |
Neurobiol Dis
January 2025
Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Ontario, Canada; Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada. Electronic address:
Bank voles are susceptible to prion strains from many different species, yet the molecular mechanisms underlying the ability of bank vole prion protein (BVPrP) to function as a universal prion acceptor remain unclear. Potential differences in molecular environments and protein interaction networks on the cell surface of brain cells may contribute to BVPrP's unusual behavior. To test this hypothesis, we generated knock-in mice that express physiological levels of BVPrP (M109 isoform) and employed mass spectrometry to compare the interactomes of mouse (Mo) PrP and BVPrP following mild in vivo crosslinking of brain tissue.
View Article and Find Full Text PDFVet Microbiol
January 2025
Department of Agricultural and Environmental Sciences, College of Agriculture, Tennessee State University, Nashville, TN, United States. Electronic address:
Porcine reproductive and respiratory syndrome (PRRS), caused by the highly variable PRRS virus (PRRSV), presents a significant challenge to the swine industry due to its pathogenic and economic burden. The virus evades host immune responses, particularly interferon (IFN) signaling, through various viral mechanisms. Traditional vaccines have shown variable efficacy in the field, prompting the exploration of novel vaccination strategies.
View Article and Find Full Text PDFJ Neurogenet
January 2025
Institute of Prion Diseases, MRC Prion Unit at University College London, London, UK.
Inherited prion diseases (IPD) secondary to mutations of the prion protein gene, exhibit diverse clinical phenotypes, capable of mimicking numerous primary neurodegenerative conditions. We describe the clinical phenotype and neuropathological findings in a family from County Limerick in Ireland presenting with Alzheimer's disease-like cognitive decline and motor symptoms caused by a novel missense mutation of This mutation occurs in the central lysine cluster (CLC; codon 101-110), resulting in substitution of threonine with isoleucine at codon 107 (T107I). This case series highlights that IPD can be hard to distinguish from overlapping clinical syndromes seen in other neurodegenerative diseases.
View Article and Find Full Text PDFJ Neurol Sci
January 2025
Laboratory of Molecular Biology and Genetics, Postgraduate Program of Health Sciences, São Francisco University, Bragança Paulista, São Paulo, Brazil; Laboratory of Clinical and Molecular Microbiology, Postgraduate Program of Health Sciences, São Francisco University, Bragança Paulista, São Paulo, Brazil; LunGuardian Research Group - Epidemiology of Respiratory and Infectious Diseases, Postgraduate Program of Health Sciences, São Francisco University, Bragança Paulista, São Paulo, Brazil. Electronic address:
JAMA Neurol
December 2024
Department of Neurology, Medical University of Vienna, Vienna, Austria.
Importance: Sporadic Creutzfeldt-Jakob disease (sCJD) is a rare, rapidly progressive and fatal neurodegenerative disease. Definite sCJD diagnosis can only be made post mortem, and little is known about the prodromal phase of the disease.
Objective: To compare drug prescription patterns before the clinical onset of sCJD between patients and matched controls for exploration of potential risk factors and to assess correlations between drug exposure and sCJD survival.
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