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https://www.readbyqxmd.com/read/28645127/-high-prevalence-of-antipsychotic-medication-use-in-dementia-patients-in-german-neuropsychiatric-practices
#1
Jens Bohlken, Anke Booker, Karel Kostev
Background The aim of the present study was to examine inpatients as well as patients living at home with respect to the frequency of antipsychotic medication use and to determine the factors leading to initial use of antipsychotics following dementia diagnosis. Methods This study included patients aged 60 years and over with an initial diagnosis of all-cause dementia (index date) by German psychiatrists in Disease Analyzer database (IMS Health). The main outcome measure was the proportion of patients who initially received an antipsychotic prescription after the index date...
June 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28642699/cerebral-blood-flow-and-amyloid-%C3%AE-interact-to-affect-memory-performance-in-cognitively-normal-older-adults
#2
Katherine J Bangen, Alexandra L Clark, Emily C Edmonds, Nicole D Evangelista, Madeleine L Werhane, Kelsey R Thomas, Lyzette E Locano, My Tran, Zvinka Z Zlatar, Daniel A Nation, Mark W Bondi, Lisa Delano-Wood
Cerebral blood flow (CBF) alterations and amyloid-β (Aβ) accumulation have been independently linked to cognitive deficits in older adults at risk for dementia. Less is known about how CBF and Aβ may interact to affect cognition in cognitively normal older adults. Therefore, we examined potential statistical interactions between CBF and Aβ status in regions typically affected in Alzheimer's disease (AD) within a sample of older adults from the Alzheimer's Disease Neuroimaging Initiative (ADNI) study. Sixty-two cognitively normal participants (mean age = 72 years) underwent neuroimaging and memory testing...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28641077/inhibition-of-early-growth-response-1-in-the-hippocampus-alleviates-neuropathology-and-improves-cognition-in-an-alzheimer-model-with-plaques-and-tangles
#3
Xike Qin, Yunling Wang, Hemant K Paudel
A sporadic form of Alzheimer disease (AD) and vascular dementia share many risk factors, and their pathogenic mechanisms are suggested to be related. Transcription factor early growth response 1 (Egr-1) regulates various vascular pathologies and is up-regulated in both AD brains and AD mouse models; however, its role in AD pathogenesis is unclear. Herein, we report that silencing of Egr-1 in the hippocampus by shRNA reduces tau phosphorylation, amyloid-β (Aβ) pathology, and improves cognition in the 3xTg-AD mouse model...
June 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28638201/a-pilot-longitudinal-study-on-cerebrospinal-fluid-csf-tau-protein-in-alzheimer-s-disease-and-vascular-dementia
#4
Haihong Wang, Tao Wang, Shixing Qian, Li Ba, Zhiguang Lin, Shifu Xiao
BACKGROUND: Alzheimer's disease (AD) has high a prevalence rate, high medical costs, and care difficulties, and has become a serious social and economic problem in our aging society. So far, there has not been a reliable and objective diagnostic criteria for AD found. In recent years, there have been many domestic and foreign studies on the biological markers of cerebrospinal fluid in the patients with AD, and high levels of the T-tau, P-tau found in cerebrospinal fluid (CSF) is at this point an indisputable fact...
October 25, 2016: Shanghai Archives of Psychiatry
https://www.readbyqxmd.com/read/28638040/-complex-application-2-ethyl-6-methyl-3-hydroxypyridine-succinate-and-vinpocetine-in-cerebrovascular-disorder
#5
E Yu Solovyeva, A N Karneev, A V Chekanov, O A Baranova, I V Choi
Developing brain ischemia due to cerebral vascularization leads to disruption of brain metabolism. Chronic cerebral hypoperfusion leads to irreversible brain damage and plays an important role in the development of some types of dementia. Early use of antioxidants such as ethyl ether apovincamine acid (vinpocetine) and 2-ethyl-6-methyl-3-hydroxypyridine-succinate in the treatment of this pathology is seen as a real pathogenetically based method of correction of cerebral metabolism with cerebral vascular disorders, demonstrating the increase in cerebral blood flow and also neuroprotective effects...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28634464/anti-inflammatory-and-neuroprotective-effects-of-co-ultrapealut-in-a-mouse-model-of-vascular-dementia
#6
Rosalba Siracusa, Daniela Impellizzeri, Marika Cordaro, Rosalia Crupi, Emanuela Esposito, Stefania Petrosino, Salvatore Cuzzocrea
Vascular dementia (VaD), the second most common cause of cognitive impairment in the population, is a disease that results from reduction in regional cerebral blood flow and involves oxidative stress and inflammation. Co-ultramicronized PEALut (co-ultra PEALut) is a new compound with beneficial effects, which include anti-inflammatory and antioxidant properties. Recently, co-ultraPEALut has been shown to exhibit neuroprotective effects in models of Parkinson's disease, cerebral ischemia and Alzheimer's disease...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28633628/olfactory-testing-in-consecutive-patients-referred-with-suspected-dementia
#7
Ib Thrane Christensen, Elna-Marie Larsson, Ida E Holm, Ole B F Nielsen, Stig Andersen
BACKGROUND: Alzheimer's disease (AD) is the most common cause of dementia and early and accurate diagnosis is important. Olfactory dysfunction is an early sign of AD. The contribution by test of olfactory function has been surveyed in AD vs a line of conditions but remains to be settled in the workup of unselected patients referred with suspected dementia. METHODS: We performed a two-step investigation: first, a comparative study of healthy controls and probable AD patients to test the applicability of the chosen scents (cuisine study); second, a study of consecutive patients referred to our geriatric outpatient clinic for suspected dementia with the investigating personnel blinded to the results of the Olfactory Test (blinded study)...
June 20, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28633305/circulating-micrornas-as-potential-biomarkers-for-the-identification-of-vascular-dementia-due-to-cerebral-small-vessel-disease
#8
Puttachandra Prabhakar, Sadanandavalli Retnaswami Chandra, Rita Christopher
Background: the diagnosis of cerebral small vessel disease, a leading cause of vascular dementia (VaD), relies solely on neuroimaging studies. Circulating microRNAs (miRNAs) have been proposed as diagnostic biomarkers in various disorders. Our aim was to identify differentially expressed, circulating miRNAs in small vessel VaD which could serve as diagnostic biomarkers for this disease. Method: we performed plasma miRNA profiling by quantitative polymerase chain reaction (qPCR) array in small vessel VaD patients and age- and gender-matched, cognitively normal and healthy controls...
June 13, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28632993/the-role-of-small-gtpases-and-epac-rap-signaling-in-the-regulation-of-the-blood-brain-and-blood-retinal-barriers
#9
Carla J Ramos, David A Antonetti
Maintenance and regulation of the vascular endothelial cell junctional complex is critical for proper barrier function of the blood-brain barrier (BBB) and the highly related blood-retinal barrier (BRB) that help maintain proper neuronal environment. Recent research has demonstrated that the junctional complex is actively maintained and can be dynamically regulated. Studies focusing on the mechanisms of barrier formation, maintenance, and barrier disruption have been of interest to understanding development of the BBB and BRB and identifying a means for therapeutic intervention for diseases ranging from brain tumors and dementia to blinding eye diseases...
June 9, 2017: Tissue Barriers
https://www.readbyqxmd.com/read/28626470/multi-infarct-dementia-a-historical-perspective
#10
REVIEW
Erin McKay, Scott E Counts
BACKGROUND: Multi-infarct dementia (MID), a prominent subtype of vascular dementia (VaD), has only achieved recognition in the last 4 decades. Since its original description, the characterization, etiological understanding, and therapeutic direction of MID and other VaD subtypes has progressed at an astounding rate. SUMMARY: This paper divides the landmark discoveries and emergence of new research strategies for MID into decade-defining patterns so that a condensed picture of the total history of MID and its eventual inclusion as a VaD subtype emerges...
January 2017: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/28625199/color-vision-test-to-differentiate-alzheimer-s-disease-from-vascular-dementia
#11
Tomoyuki Kawada
Arnaoutoglou et al. (2017) reported that "Ishihara Color Vision Test - 38 Plate" was useful for the differential diagnosis of dementia between Alzheimer's Disease (AD) and Vascular Dementia (VaD). The authors used sensitivity/specificity analysis, presenting 80.6% and 87.5% to discriminate AD and VaD patients when an optimal (32.5) cut-off value of performance was used. The authors cited a reference of the fact that AD patients suffered from a non-specific type of color blindness (Pache et al., 2003), and I have a query on their study with special reference to statistical method...
June 19, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28620783/advanced-neuroimaging-of-cerebral-small-vessel-disease
#12
REVIEW
Gordon W Blair, Maria Valdez Hernandez, Michael J Thrippleton, Fergus N Doubal, Joanna M Wardlaw
Cerebral small vessel disease (SVD) is characterised by damage to deep grey and white matter structures of the brain and is responsible for a diverse range of clinical problems that include stroke and dementia. In this review, we describe advances in neuroimaging published since January 2015, mainly with magnetic resonance imaging (MRI), that, in general, are improving quantification, observation and investigation of SVD focussing on three areas: quantifying the total SVD burden, imaging brain microstructural integrity and imaging vascular malfunction...
July 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28620701/chronic-cerebral-hypoperfusion-induced-synaptic-proteome-changes-in-the-rat-cerebral-cortex
#13
Katalin Völgyi, Péter Gulyássy, Mihail Ivilinov Todorov, Gina Puska, Kata Badics, Dávid Hlatky, Katalin Adrienna Kékesi, Gabriella Nyitrai, András Czurkó, László Drahos, Arpád Dobolyi
Chronic cerebral hypoperfusion (CCH) evokes mild cognitive impairment (MCI) and contributes to the progression of vascular dementia and Alzheimer's disease (AD). How CCH induces these neurodegenerative processes that may spread along the synaptic network and whether they are detectable at the synaptic proteome level of the cerebral cortex remains to be established. In the present study, we report the synaptic protein changes in the cerebral cortex after stepwise bilateral common carotid artery occlusion (BCCAO) induced CCH in the rat...
June 15, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28617802/oxidative-stress-affects-processing-of-amyloid-precursor-protein-in-vascular-endothelial-cells
#14
Abebe Muche, Thomas Arendt, Reinhard Schliebs
BACKGROUND: Oxidative stress is thought to be a key player in the pathogenesis of neurodegenerative dementia, including Alzheimer's disease (AD). It has been assumed that oxidative stress contributes to the ß-amyloid deposition in cerebral blood vessels. METHODS: In order to prove this hypothesis, we examined the effect of oxidative stress on the processing of amyloid precursor protein (APP) in primary endothelial cells (EC) derived from cerebral cortical tissue of transgenic Tg2576 mice...
2017: PloS One
https://www.readbyqxmd.com/read/28617071/an-endothelial-link-between-the-benefits-of-physical-exercise-in-dementia
#15
Lianne J Trigiani, Edith Hamel
The current absence of a disease-modifying treatment for Alzheimer's disease (AD) and vascular cognitive impairment and dementia (VCID) highlights the necessity for investigating the benefits of non-pharmacological approaches such as physical exercise (PE). Although evidence exists to support an association between regular PE and higher scores on cognitive function tests, and a slower rate of cognitive decline, there is no clear consensus on the underlying molecular mechanisms of the advantages of PE. This review seeks to summarize the positive effects of PE in human and animal studies while highlighting the vascular link between these benefits...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28615420/insulin-resistance-among-obese-middle-aged-is-associated-with-decreased-cerebrovascular-reactivity
#16
Olivia H Frosch, Po Lai Yau, Ricardo S Osorio, Henry Rusinek, Pippa Storey, Antonio Convit
OBJECTIVE: To evaluate differences in cerebrovascular reactivity (CVR) to mild hypercapnia in obese/overweight individuals with and without insulin resistance (IR) compared to comparable lean controls. METHODS: A total of 60 cognitively normal participants (20 lean controls and 24 obese/overweight individuals with and 16 without IR) were evaluated using a high spatial resolution arterial spin labeling MRI technique at rest and during mild hypercapnia. We analyzed group differences in CVR in cerebral cortex and ascertained the relationships between CVR, IR, and body mass index (BMI)...
June 14, 2017: Neurology
https://www.readbyqxmd.com/read/28615081/clinical-variables-related-to-the-diagnostic-stability-of-demential-syndromes
#17
Fabiano Moulin de Moraes, Paulo Henrique Ferreira Bertolucci
BACKGROUND: Assigning a diagnosis to a patient with dementia is important for the present treatment of the patient and caregivers, and scientific research. Nowadays, the dementia diagnostic criteria are based on clinical information regarding medical, history, physical examination, neuropsychological tests, and supplementary exams and, therefore, subject to variability through time. METHODS: A retrospective observational study to evaluate variables related to clinical diagnostic stability in dementia syndromes in at least one year follow up...
June 15, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28613396/evaluation-of-acetylcholinesterase-and-carbonic-anhydrase-inhibition-profiles-of-1-2-3-4-6-pentasubstituted-4-hydroxy-cyclohexanes
#18
Umit M Kocyigit, Parham Taslimi, Hayreddin Gezegen, İlhami Gulçin, Mustafa Ceylan
Carbonic anhydrase (CA; EC 4.2.1.1) is used for remedial purposes for several years, as there is significant focus on expanding more new activators (CAAs) and high affinity inhibitors. Alzheimer's disease and other similar ailments such as dementia and vascular dementia with Lewy bodies reduce cholinergic activity in the important areas involved in cognition and memory. Prevalent drugs for the symptomatic therapy of dementia are significant in increasing the associated cholinergic deficiency by inhibiting acetylcholinesterase (AChE)...
June 14, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28611659/vitamin-d-homocysteine-and-folate-in-subcortical-vascular-dementia-and-alzheimer-dementia
#19
Rita Moretti, Paola Caruso, Matteo Dal Ben, Corrado Conti, Silvia Gazzin, Claudio Tiribelli
Dementia is a worldwide health problem which affects millions of patients; Alzheimer's disease (AD) and subcortical vascular dementia (sVAD) are the two most frequent forms of its presentation. As no definite therapeutic options have been discovered, different risk factors for cognitive impairment have been searched for potential therapies. This report focuses on the possible evidence that vitamin D deficiency and hyper-homocysteinemia can be considered as two important factors for the development or the progression of neurodegenerative or vascular pathologies...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28605723/a-combined-cognitive-and-gait-quantification-to-identify-normal-pressure-hydrocephalus-from-its-mimics-the-geneva-s-protocol
#20
Gilles Allali, Magali Laidet, Stéphane Armand, Shahan Momjian, Bruno Marques, Arnaud Saj, Frédéric Assal
OBJECTIVES: Idiopathic normal pressure hydrocephalus (iNPH) is very prevalent in aging, underdiagnosed, and represents a rare cause of reversible neurological condition. The clinical triad of iNPH - gait, cognitive and urinary symptoms - and its neuroradiological features (i.e. ventriculomegaly) are not specific and found a various neurodegenerative and/or vascular conditions. We present our iNPH standardized protocol at the Geneva University Hospitals involving a multispecialty team of behavioral neurologists, neurosurgeons, neuropsychologists, engineers, and physical therapists...
June 6, 2017: Clinical Neurology and Neurosurgery
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