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Vascular parkinsonism

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https://www.readbyqxmd.com/read/29126445/ykl-40-in-the-brain-and-cerebrospinal-fluid-of-neurodegenerative-dementias
#1
Franc Llorens, Katrin Thüne, Waqas Tahir, Eirini Kanata, Daniela Diaz-Lucena, Konstantinos Xanthopoulos, Eleni Kovatsi, Catharina Pleschka, Paula Garcia-Esparcia, Matthias Schmitz, Duru Ozbay, Susana Correia, Ângela Correia, Ira Milosevic, Olivier Andréoletti, Natalia Fernández-Borges, Ina M Vorberg, Markus Glatzel, Theodoros Sklaviadis, Juan Maria Torres, Susanne Krasemann, Raquel Sánchez-Valle, Isidro Ferrer, Inga Zerr
BACKGROUND: YKL-40 (also known as Chitinase 3-like 1) is a glycoprotein produced by inflammatory, cancer and stem cells. Its physiological role is not completely understood but YKL-40 is elevated in the brain and cerebrospinal fluid (CSF) in several neurological and neurodegenerative diseases associated with inflammatory processes. Yet the precise characterization of YKL-40 in dementia cases is missing. METHODS: In the present study, we comparatively analysed YKL-40 levels in the brain and CSF samples from neurodegenerative dementias of different aetiologies characterized by the presence of cortical pathology and disease-specific neuroinflammatory signatures...
November 10, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29123083/identification-of-a-peptide-recognizing-cerebrovascular-changes-in-mouse-models-of-alzheimer-s-disease
#2
Aman P Mann, Pablo Scodeller, Sazid Hussain, Gary B Braun, Tarmo Mölder, Kadri Toome, Rajesh Ambasudhan, Tambet Teesalu, Stuart A Lipton, Erkki Ruoslahti
Cerebrovascular changes occur in Alzheimer's disease (AD). Using in vivo phage display, we searched for molecular markers of the neurovascular unit, including endothelial cells and astrocytes, in mouse models of AD. We identified a cyclic peptide, CDAGRKQKC (DAG), that accumulates in the hippocampus of hAPP-J20 mice at different ages. Intravenously injected DAG peptide homes to neurovascular unit endothelial cells and to reactive astrocytes in mouse models of AD. We identified connective tissue growth factor (CTGF), a matricellular protein that is highly expressed in the brain of individuals with AD and in mouse models, as the target of the DAG peptide...
November 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/29096694/pattern-of-neurological-diseases-in-adult-outpatient-neurology-clinics-in-tertiary-care-hospital
#3
Safia Awan, Saad Shafqat, Ayeesha Kamran Kamal, Aziz Sonawalla, Sarwar Siddiqui, Fowzia Siddiqui, Mohammad Wasay
OBJECTIVES: The burden of neurological diseases in developing countries is rising although little is known about the epidemiology and clinical pattern of neurological disorders. The objective of this study was to understand the burden of disease faced by neurologists a in tertiary care setting. RESULTS: A prospective observational study was conducted of all presentations to neurology clinics at Aga Khan University Hospital Karachi over a period of 2 years. A total of 16,371 out-patients with neurological diseases were seen during the study period...
November 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29080331/optn-p-met468arg-and-atxn2-intermediate-length-polyq-extension-in-families-with-c9orf72-mediated-amyotrophic-lateral-sclerosis-and-frontotemporal-dementia
#4
Sali M K Farhan, Tania F Gendron, Leonard Petrucelli, Robert A Hegele, Michael J Strong
We have ascertained two families affected with familial amyotrophic lateral sclerosis (ALS) in which they both carry a hexanucleotide repeat expansion in the C9orf72 gene, specifically in individuals who also presented with frontotemporal dementia (FTD) or behavioral variant FTD (bvFTD). While some reports attribute this phenotypic heterogeneity to the C9orf72 expansion alone, we screened for additional genetic variation in known ALS-FTD genes that may also contribute to or modify the phenotypes. We performed genetic testing consisting of C9orf72 hexanucleotide expansion, ATXN2 polyglutamine (polyQ) expansion, and targeted next generation sequencing using the ONDRISeq, a gene panel consisting of 80 genes known to be associated with neurodegenerative diseases such as ALS, FTD, Alzheimer's disease, Parkinson's disease, and vascular cognitive impairment...
October 28, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/29048735/6-hydroxydopamine-induces-brain-vascular-endothelial-inflammation
#5
Qizhi Fu, Runluo Song, Zhongxi Yang, Qi Shan, Wenna Chen
Disruption of the blood-brain barrier associated with endothelial dysfunction is an important hallmark of Parkinson's disease (PD). 6-Hydroxydopamine (6-OHDA) is a synthetic dopamine derivate often used to model PD as it results in retrograde degeneration of striatal dopaminergic (DA) terminals. Presently, the effects of 6-OHDA on endothelial dysfunction remain unknown. Using a 6-OHDA rodent model of PD, we found that administration of 6-OHDA could increase the expression of endothelial adhesion molecules, such as intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), and E-selectin...
November 2017: IUBMB Life
https://www.readbyqxmd.com/read/29036826/what-can-quantitative-gait-analysis-tell-us-about-dementia-and-its-subtypes-a-structured-review
#6
Ríona Mc Ardle, Rosie Morris, Joanna Wilson, Brook Galna, Alan J Thomas, Lynn Rochester
Distinguishing dementia subtypes can be difficult due to similarities in clinical presentation. There is increasing interest in discrete gait characteristics as markers to aid diagnostic algorithms in dementia. This structured review explores the differences in quantitative gait characteristics between dementia and healthy controls, and between four dementia subtypes under single-task conditions: Alzheimer's disease (AD), dementia with Lewy bodies and Parkinson's disease dementia, and vascular dementia. Twenty-six papers out of an initial 5,211 were reviewed and interpreted using a validated model of gait...
October 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29033972/clinical-spectrum-risk-factors-and-behavioral-abnormalities-among-dementia-subtypes-in-a-north-indian-population-a-hospital-based-study
#7
Suman Kushwaha, Puneet Talwar, Aldrin Anthony, Meena Gupta, Kiran Bala, Rachna Agarwal, Vibha Sharma, Ritushree Kukreti
BACKGROUND: As variability in the clinical profile of dementia subtypes had been reported with regional differences across the world, we conducted a retrospective hospital-based study in a North Indian population. METHODS: We retrieved patient records from 2007 to 2014 for details of clinical evaluation, diagnosis, neuroimaging, biochemical investigations, and follow-up of 1,876 patients with dementia (PwD), and the data were analyzed using descriptive statistics...
May 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/29018399/therapeutic-interventions-for-vascular-parkinsonism-a-systematic-review-and-meta-analysis
#8
Adán Miguel-Puga, Gabriel Villafuerte, José Salas-Pacheco, Oscar Arias-Carrión
BACKGROUND: Vascular parkinsonism (VP) is defined as the presence of parkinsonian syndrome, evidence of cerebrovascular disease, and an established relationship between the two disorders. However, the diagnosis of VP is problematic, particularly for the clinician confronted with moving from diagnosis to treatment. Given the different criteria used in the diagnosis of VP, the effectiveness of available therapeutic interventions for this disease are currently unknown. METHODS: To assess the clinical response of all published therapeutic interventions for VP that have been reported in the literature, we conducted a systematic review looking for VP subjects treated with any therapeutic intervention...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28986199/vascular-parkinsonism-in-a-tertiary-care-stroke-prevention-clinic-and-the-development-of-a-new-screening-strategy
#9
Herbert A Manosalva, Fabricio Pio, Thomas Jeerakathil, Maher Saqqur, Richard Camicioli, Oksana Suchowersky
OBJECTIVES: To determine the prevalence of vascular parkinsonism (VasP) in a stroke prevention clinic (SPC). BACKGROUND: VasP can be defined by an onset of parkinsonism with prominent gait problems occurring within 1 year of stroke. METHODS: We created a screening strategy based on the Tanner Questionnaire (TQ), a validated scale for parkinsonism, and the creation of a 4-point Five-Minute Assessment Scale (FMAS) operationalizing Zijlmans' criteria for the diagnosis of VasP...
October 3, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28923026/dementia-and-cognitive-disorder-identified-at-a-forensic-psychiatric-examination-a-study-from-sweden
#10
Anette Ekström, Marianne Kristiansson, Karin Sparring Björkstén
BACKGROUND: Few studies have addressed the relationship between dementia and crime. We conducted a study of persons who got a primary or secondary diagnosis of dementia or cognitive disorder in a forensic psychiatric examination. METHODS: In Sweden, annually about 500 forensic psychiatric examinations are carried out. All cases from 2008 to 2010 with the diagnoses dementia or cognitive disorder were selected from the database of the Swedish National Board of Forensic Medicine...
September 18, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28922189/acr-acnm-practice-parameter-for-the-performance-of-dopamine-transporter-dat-single-photon-emission-computed-tomography-spect-imaging-for-movement-disorders
#11
Rathan M Subramaniam, Kirk A Frey, Christopher H Hunt, Gustavo A Mercier, Lilja B Solnes, Patrick M Colletti, Yang Lu, Bital Savir-Baruch, Hadyn T Williams
This American College of Radiology and American College of Nuclear Medicine joint clinical practice parameter is for performance of dopamine transporter single photon emission computed tomography (SPECT) imaging, for patients with movement disorders. Parkinsonian syndrome (PS) consists of a group of neurodegenerative diseases including Parkinson disease (PD), progressive supranuclear palsy (PSP), multiple system atrophy (MSA), corticobasal degeneration (CBD), and dementia with Lewy bodies (DLB). Accurate diagnosis of PS is critical for clinical management...
November 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28912672/maximizing-the-potential-of-longitudinal-cohorts-for-research-in-neurodegenerative-diseases-a-community-perspective
#12
Catherine J Moody, Derick Mitchell, Grace Kiser, Dag Aarsland, Daniela Berg, Carol Brayne, Alberto Costa, Mohammad A Ikram, Gail Mountain, Jonathan D Rohrer, Charlotte E Teunissen, Leonard H van den Berg, Joanna M Wardlaw
Despite a wealth of activity across the globe in the area of longitudinal population cohorts, surprisingly little information is available on the natural biomedical history of a number of age-related neurodegenerative diseases (ND), and the scope for intervention studies based on these cohorts is only just beginning to be explored. The Joint Programming Initiative on Neurodegenerative Disease Research (JPND) recently developed a novel funding mechanism to rapidly mobilize scientists to address these issues from a broad, international community perspective...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28905043/vascular-parkinsonism-and-vascular-dementia-are-associated-with-an-increased-risk-of-vascular-events-or-death
#13
Jacek Staszewski, Renata Piusińska-Macoch, Bogdan Brodacki, Ewa Skrobowska, Katarzyna Macek, Adam Stępień
INTRODUCTION: The natural course of vascular parkinsonism (VaP) and dementia (VaD) due to cerebral small vessel disease (SVD) is not well known. The aim of this single-center study was to evaluate the long-term risk of vascular events, death and dependency in patients with VaP or VaD and to compare it with patients without cerebrovascular disease but with high atherothrombotic risk. MATERIAL AND METHODS: Seventy-eight consecutive, functionally independent patients with MRI features of SVD and with recently diagnosed VaD (n = 50) and VaP (n = 28) and 55 controls (control group - CG) with high 10-year risk of total cardiovascular disease (SCORE ≥ 5%) were prospectively recruited and followed for 24 months...
2017: Arch Med Sci Atheroscler Dis
https://www.readbyqxmd.com/read/28877525/development-of-a-thai-parkinson-s-disease-screening-tool-and-the-prevalence-of-parkinsonism-and-parkinson-s-disease-based-on-a-community-survey-in-bangkok
#14
Weerasak Muangpaisan, Pitiporn Siritipakorn, Prasert Assantachai
INTRODUCTION: Few epidemiological data of parkinsonism and Parkinson's disease (PD) exist in Southeast Asia. We aimed to develop and validate a screening tool, and investigate the prevalence of parkinsonism and PD via a community survey. METHODS: A PD-screening tool comprising 11 "yes/no" items was developed in a clinical setting and validated in the community. The prevalence of PD and parkinsonism was investigated in a survey that included PD screening tools, face-to-face interviews, and physical examinations...
2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28855402/polycystic-kidney-disease-is-significantly-associated-with-dementia-risk
#15
Tung-Min Yu, Ya-Wen Chuang, Kuo-Ting Sun, Mei-Ching Yu, Shiang-Cheng Kung, Brian K Lee, Shih-Ting Huang, Cheng-Hsu Chen, Cheng-Li Lin, Chia-Hung Kao
OBJECTIVE: Data on the risk of neurodegenerative diseases, including Alzheimer disease (AD) and Parkinson disease (PD), in patients with polycystic kidney disease (PKD) are lacking. METHODS: A total of 4,229 patients who were aged ≥20 years and had received a diagnosis of PKD were included in the PKD cohort. For each PKD case identified, 1 participant aged ≥20 years without a history of PKD, dementia, or PD was selected from the comparison cohort. For each patient with PKD, the corresponding controls were selected 1:1 on the basis of the nearest propensity score calculated using logistic regression...
October 3, 2017: Neurology
https://www.readbyqxmd.com/read/28843020/clinicopathologic-discrepancies-in-a-population-based-incidence-study-of-parkinsonism-in-olmsted-county-1991-2010
#16
Pierpaolo Turcano, Michelle M Mielke, Keith A Josephs, James H Bower, Joseph E Parisi, Bradley F Boeve, Rodolfo Savica
OBJECTIVE: The purpose of this study was to examine the discrepancies between the clinical diagnosis of parkinsonism and neuropathological findings in a population-based cohort with parkinsonian disorders. BACKGROUND: The specific clinical diagnosis of parkinsonism is challenging, and definite confirmation requires neuropathological evaluation. Currently, autopsies are seldom performed, and most brain autopsies represent atypical or diagnostically unresolved cases...
August 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28839167/analytical-performance-of-reagent-for-assaying-tau-protein-in-human-plasma-and-feasibility-study-screening-neurodegenerative-diseases
#17
Shieh-Yueh Yang, Ming-Jang Chiu, Ta-Fu Chen, Chin-Hsien Lin, Jiann-Shing Jeng, Sung-Chun Tang, Yen-Fu Lee, Che-Chuan Yang, Bing-Hsien Liu, Hsin-Hsien Chen, Chau-Chung Wu
Immunomagnetic reduction (IMR), which involves the use of antibody-functionalized magnetic nanoparticles to specifically label target biomarkers, was utilized to develop an assay for total tau protein in human plasma. The analytic properties of the IMR assay on tau protein were investigated. The limit of detection was found to be 0.026 pg/ml. Other properties such as Hook effect, assay linearity, dilution recovery range, reagent stability, interference test, and spiked recovery were also characterized. The ultra-sensitive IMR assay was applied to detect the plasma tau protein levels of subjects with prevalent neurodegenerative diseases, such as Alzheimer's disease (AD), mild cognitive impairment (MCI) due to AD, Parkinson's disease (PD), frontotemporal dementia (FTD) and vascular dementia (VD)...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28836927/statin-usage-vascular-diagnosis-and-vascular-risk-factors-in-parkinson-s-disease
#18
Kelvin Kw Cheng, Diane Ma Swallow, Katherine A Grosset, Donald G Grosset
Background and aims Vascular disease is a common comorbidity in Parkinson's disease patients. Statins are potentially neuroprotective for Parkinson's disease through non-vascular mechanisms. We investigated prevailing statin use in a Parkinson's disease cohort. Methods and results Data on diagnostic indication for statins, anti-Parkinson therapy, vascular risk factors, and statin prescription, were obtained from electronic medical record review for consecutive Parkinson's disease patients. The ASsessing cardiac risk using Scottish Intercollegiate Guidelines Network system was used to calculate future cardiovascular risk and identify those warranting statin use...
January 1, 2017: Scottish Medical Journal
https://www.readbyqxmd.com/read/28831624/vascular-parkinsonism-or-idiopathic-nph-new-insights-from-csf-pressure-analysis
#19
Claudia Giliberto, Giovanni Mostile, Salvatore Lo Fermo, Ester Reggio, Giorgia Sciacca, Alessandra Nicoletti, Mario Zappia
Differential diagnosis between vascular parkinsonism (VP) and idiopathic normal pressure hydrocephalus (iNPH) is particularly challenging due to similar clinical and neuroradiological features. The objective of this study is to differentiate VP with radiological evidence of ventricular enlargement (REVE) from iNPH on the basis of cerebrospinal fluid (CSF) hydrodynamics. CSF pressure components were investigated in patients with a clinical diagnosis of VP and REVE. Data of eight patients (seven men; age 76 ± 3...
August 22, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28805574/nonmotor-symptoms-in-vascular-and-other-secondary-parkinsonism
#20
Oleg S Levin, Achcha Sh Chimagomedova, Natalia A Skripkina, Elena A Lyashenko, Olga V Babkina
Vascular parkinsonism (VP) is a relatively frequent variant of secondary parkinsonism caused by ischemic or hemorrhagic lesions of basal ganglia, midbrain, or their links with frontal cortex. According to different investigations, various forms of cerebrovascular disease cause 1%-15% of parkinsonism cases. Nonmotor symptoms are frequently found in VP and may negatively influence on quality of life. However, nonmotor symptoms such as hallucinations, orthostatic hypotension, REM-sleep behavior disorder, and anosmia are rarely revealed in VP, which may be noted to another diagnosis or mixed pathology...
2017: International Review of Neurobiology
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