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Alzheimer Revision

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https://www.readbyqxmd.com/read/28213293/relations-between-personality-changes-and-cerebrospinal-fluid-biomarkers-of-alzheimer-s-disease-pathology
#1
D Tautvydaitė, J P Antonietti, H Henry, A von Gunten, J Popp
Specific changes in personality profiles may represent early non-cognitive symptoms of Alzheimer's disease (AD). Evaluating the subject's personality changes may add significant clinical information, as well as help to better understand the interaction between personality change, cognitive decline, and cerebral pathology. With this study we aimed to describe the relationship between personality changes and cerebrospinal fluid (CSF) markers of AD pathology at early clinical stages of the disease. One hundred and ten subjects, of whom 66 cognitively impaired patients (57 with mild cognitive impairment (MCI), and 9 with mild dementia) and 44 healthy controls, had neuropsychological examination as well as lumbar puncture to determine concentrations of CSF biomarkers of AD pathology (amyloid beta1-42 (Aβ1-42), phosphorylated tau (ptau-181), and total-tau (tau))...
February 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28209520/deconstructing-empathy-neuroanatomical-dissociations-between-affect-sharing-and-prosocial-motivation-using-a-patient-lesion-model
#2
Suzanne M Shdo, Kamalini G Ranasinghe, Kelly A Gola, Clinton J Mielke, Paul V Sukhanov, Bruce L Miller, Katherine P Rankin
Affect sharing and prosocial motivation are integral parts of empathy that are conceptually and mechanistically distinct. We used a neurodegenerative disease (NDG) lesion model to more directly examine the neural correlates of these two aspects of real-world empathic responding. The study enrolled 275 participants, including 44 healthy older controls and 231 patients diagnosed with one of five neurodegenerative diseases (75 Alzheimer's disease, 58 behavioral variant frontotemporal dementia (bvFTD), 42 semantic variant primary progressive aphasia (svPPA), 28 progressive supranuclear palsy, and 28 non-fluent variant (nfvPPA)...
February 13, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28196556/approach-to-atypical-alzheimer-s-disease-and-case-studies-of-the-major-subtypes
#3
Bradford C Dickerson, Scott M McGinnis, Chenjie Xia, Bruce H Price, Alireza Atri, Melissa E Murray, Mario F Mendez, David A Wolk
Alzheimer's disease (AD) has long been recognized as a heterogeneous illness, with a common clinical presentation of progressive amnesia and less common "atypical" clinical presentations, including syndromes dominated by visual, aphasic, "frontal," or apraxic symptoms. Our knowledge of atypical clinical phenotypes of AD comes from clinicopathologic studies, but with the growing use of in vivo molecular biomarkers of amyloid and tau pathology, we are beginning to recognize that these syndromes may not be as rare as once thought...
February 15, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28179036/multiple-category-verbal-fluency-in-mild-cognitive-impairment-and-correlation-with-csf-biomarkers-for-alzheimer-s-disease
#4
Roberta M Mirandez, Ivan Aprahamian, Leda L Talib, Orestes V Forlenza, Marcia Radanovic
BACKGROUND: Verbal fluency (VF) tasks are widely used in neuropsychological evaluations, as a measure of executive/semantic dysfunction. The revised criteria for Alzheimer's disease (AD) diagnosis (National Institute on Aging and the Alzheimer Association, 2011) incorporating biomarkers has increased the interest in finding algorithms that combine neuropsychological and biomarkers features to better predict conversion from mild cognitive impairment (MCI) to AD. Our aim was to compare the most frequently used VF categories to determine which best discriminated cognitively healthy elderly from MCI patients, and whether cerebrospinal fluid (CSF) biomarkers levels (Aβ42, P-tau, T-tau, and Aβ42/P-tau) correlated with patient's performance in MCI...
February 9, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28159467/c-reactive-protein-predicts-incidence-of-dementia-in-an-elderly-asian-community-cohort
#5
Pai-Feng Hsu, Wen-Harn Pan, Bak-Sau Yip, Rosalind Chia-Yu Chen, Hao-Min Cheng, Shao-Yuan Chuang
BACKGROUND: Many studies have investigated the association between markers for peripheral inflammation and risk of dementia, but the results have been conflicting. We aimed to evaluate the association between a specific inflammation marker, C-reactive protein (CRP), and dementia in an elderly Asian community cohort. METHODS: The cohort included 1436 individuals (ages 65 and older) from a national representative sample in Taiwan. Dementia incidence was identified using International Classification of Diseases, Ninth Revision codes for vascular dementia, Alzheimer disease, and nonvascular dementia...
January 31, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28153054/interaction-between-personality-traits-and-cerebrospinal-fluid-biomarkers-of-alzheimer-s-disease-pathology-modulates-cognitive-performance
#6
Domilė Tautvydaitė, Deepti Kukreja, Jean-Philippe Antonietti, Hugues Henry, Armin von Gunten, Julius Popp
BACKGROUND: During adulthood, personality characteristics may contribute to the individual capacity to compensate the impact of developing cerebral Alzheimer's disease (AD) pathology on cognitive impairment in later life. In this study we aimed to investigate whether and how premorbid personality traits interact with cerebrospinal fluid (CSF) markers of AD pathology to predict cognitive performance in subjects with mild cognitive impairment or mild AD dementia and in participants with normal cognition...
February 2, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28131190/comorbid-conditions-associated-with-parkinson-s-disease-a-longitudinal-and-comparative-study-with-alzheimer-disease-and-control-subjects
#7
D Santos García, E Suárez Castro, I Expósito, T de Deus, C Tuñas, A Aneiros, M López Fernández, D Núñez Arias, M Bermúdez Torres
BACKGROUND AND OBJECTIVE: To study what comorbid conditions were present at baseline and 3years later in a cohort of Spanish Parkinson's disease (PD) patients, to compare comorbidity with both Alzheimer's disease (AD) and control groups and to analyze the role of comorbidity as predictor of mortality. METHODS: One hundred and forty-seven non-demented PD patients (57.1% males; 70.9±8.6years old) were included in this 36months follow-up (2012-2015), monocenter, evaluation study...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28130872/evaluation-of-changes-in-oxyhemoglobin-during-shiritori-task-in-elderly-subjects-including-those-with-alzheimer%C3%A2-s-disease
#8
Yusuke Kato, Yoshihisa Shoji, Kiichiro Morita, Masayuki Inoue, Yohei Ishii, Mamoru Sato, Yuuji Yamashita, Junji Okawa, Naohisa Uchimura
BACKGROUND: In recent years, as the prevalence of Alzheimer‧s disease (AD) has increased rapidly, demand has increased for early detection and treatment. Therefore, discovery and treatment intervention at the mild cognitive impairment stage are important. Dysfunction of the working memory is known to be conspicuously present in AD patients or mild cognitive impairment subjects from an early stage. Near-infrared spectroscopy (NIRS) is a method to measure hemoglobin concentration changes during an activation task...
January 28, 2017: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/28127995/targeting-%C3%AE-amyloid-plaques-and-oligomers-development-of-near-ir-fluorescence-imaging-probes
#9
Hongwu Liu, Jian Yang, Letian Wang, Yungen Xu, Siyuan Zhang, Jie Lv, Chongzhao Ran, Yuyan Li
Evidence indicated that shifting treatment to a presymptomatic stage may produce significant benefits to prevent/alleviate the progression of Alzheimer's disease (AD); in particular, early incorporation of noninvasive imaging and biomarker testing will be significantly beneficial for AD drug development. Based on amyloid cascade hypothesis and its revised version, both β-amyloid deposition and soluble oligomeric species could be good diagnostic biomarkers for AD. Near-IR fluorescence (NIRF) imaging, which so far is limited to animal studies, is a promising method for its incomparable advantages such as low cost, high-throughput and easy operation...
January 27, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28122766/cognitive-correlates-of-perseverations-in-individuals-with-memory-impairment
#10
Gitit Kavé, Jeremia Heinik
OBJECTIVE: This study examines which cognitive measure best accounts for perseverations in individuals with memory impairment. METHOD: The sample included 85 individuals, of whom 21 had subjective memory concerns, 27 had mild cognitive impairment, and 37 had Alzheimer's disease. Participants produced responses on a semantic category fluency task and on the ideational fluency (IF) task from the Cambridge Cognitive Examination-Revised. Measures of word finding, working memory, and abstract thinking were also assessed...
February 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28106554/recovery-from-proactive-semantic-interference-in-mild-cognitive-impairment-and-normal-aging-relationship-to-atrophy-in-brain-regions-vulnerable-to-alzheimer-s-disease
#11
David A Loewenstein, Rosie E Curiel, Clinton Wright, Xiaoyan Sun, Noam Alperin, Elzabeth Crocco, Sara J Czaja, Arlene Raffo, Ailyn Penate, Jose Melo, Kimberly Capp, Monica Gamez, Ranjan Duara
BACKGROUND: There is growing evidence that proactive semantic interference (PSI) and failure to recover from PSI may represent early features of Alzheimer's disease (AD). OBJECTIVE: This study investigated the association between PSI, recovery from PSI, and reduced MRI volumes in AD signature regions among cognitively impaired and unimpaired older adults. METHODS: Performance on the LASSI-L (a novel test of PSI and recovery from PSI) and regional brain volumetric measures were compared between 38 cognitively normal (CN) elders and 29 older participants with amnestic mild cognitive impairment (MCI)...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28103749/clinical-practice-with-anti-dementia-drugs-a-revised-third-consensus-statement-from-the-british-association-for-psychopharmacology
#12
John T O'Brien, Clive Holmes, Matthew Jones, Roy Jones, Gill Livingston, Ian McKeith, Peter Mittler, Peter Passmore, Craig Ritchie, Louise Robinson, Elizabeth L Sampson, John-Paul Taylor, Alan Thomas, Alistair Burns
The British Association for Psychopharmacology coordinated a meeting of experts to review and revise its previous 2011 guidelines for clinical practice with anti-dementia drugs. As before, levels of evidence were rated using accepted standards which were then translated into grades of recommendation A-D, with A having the strongest evidence base (from randomised controlled trials) and D the weakest (case studies or expert opinion). Current clinical diagnostic criteria for dementia have sufficient accuracy to be applied in clinical practice (B) and both structural (computed tomography and magnetic resonance imaging) and functional (positron emission tomography and single photon emission computerised tomography) brain imaging can improve diagnostic accuracy in particular situations (B)...
February 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28061328/calcium-hypothesis-of-alzheimer-s-disease-and-brain-aging-a%C3%A2-framework-for-integrating-new-evidence-into-a-comprehensive-theory-of-pathogenesis
#13
(no author information available yet)
This article updates the Calcium Hypothesis of Alzheimer's disease and brain aging on the basis of emerging evidence since 1994 (The present article, with the subtitle "New evidence for a central role of Ca(2+) in neurodegeneration," includes three appendices that provide context and further explanations for the rationale for the revisions in the updated hypothesis-the three appendices are as follows: Appendix I "Emerging concepts on potential pathogenic roles of [Ca(2+)]," Appendix II "Future studies to validate the central role of dysregulated [Ca(2+)] in neurodegeneration," and Appendix III "Epilogue: towards a comprehensive hypothesis...
February 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28030437/cerebrospinal-fluid-biomarkers-for-the-diagnosis-of-alzheimer-disease-in-south-korea
#14
Sun Ah Park, Won Seok Chae, Hyeong Jun Kim, Ho Sik Shin, Saeromi Kim, Ji Young Im, Sang Il Ahn, Kyoung Dae Min, Soo Jae Yim, Byoung Seok Ye, Sang Won Seo, Jee Hyang Jeong, Kyung Won Park, Seong Hye Choi, Duk L Na
Laboratory-specific reference values for cerebrospinal fluid (CSF) Alzheimer disease (AD) biomarkers are necessary. Our objective was to apply well-known CSF biomarkers and redetermine their diagnostic cutoff values for AD in South Korea. CSF samples from matched control subjects (n=71), patients with AD dementia (ADD, n=76), and other neurological disorders with cognitive decline (OND, n=47) were obtained from 6 Korean dementia clinics according to a standardized protocol. CSF biomarker concentrations were measured using enzyme-linked immunosorbent assay...
December 23, 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/27981922/caregiver-burden-quality-of-life-and-vulnerability-towards-psychopathology-in-caregivers-of-patients-with-dementia-alzheimer-s-disease
#15
Saima Dawood
OBJECTIVE: To identify caregivers' burden, evaluate quality of life in them; and predict anxiety and depression in caregivers of patients with Alzheimer's disease (AD). STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: Neurology and Psychiatry Department of Lahore General Hospital (LGH), from January to December, 2013. METHODOLOGY: A purposive sample of 60 caregivers, who had been taking care of patients with AD for more than one year, were recruited from the study centre...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27942728/sex-and-race-differences-in-the-association-between-statin-use-and-the-incidence-of-alzheimer-disease
#16
Julie M Zissimopoulos, Douglas Barthold, Roberta Diaz Brinton, Geoffrey Joyce
Importance: To our knowledge, no effective treatments exist for Alzheimer disease, and new molecules are years away. However, several drugs prescribed for other conditions have been associated with reducing its risk. Objective: To analyze the association between statin exposure and Alzheimer disease incidence among Medicare beneficiaries. Design, Setting, and Participants: We examined the medical and pharmacy claims of a 20% sample of Medicare beneficiaries from 2006 to 2013 and compared rates of Alzheimer disease diagnosis for 399 979 statin users 65 years of age or older with high or low exposure to statins and with drug molecules for black, Hispanic, and non-Hispanic white people, and men and women of Asian, Native American, or unkown race/ethnicity who are referred to as "other...
February 1, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/27858710/app-mutations-in-cerebral-amyloid-angiopathy-with-or-without-cortical-calcifications-report-of-three-families-and-a%C3%A2-literature-review
#17
François Sellal, David Wallon, Laurent Martinez-Almoyna, Cecilia Marelli, Abhinav Dhar, Héléne Oesterlé, Anne Rovelet-Lecrux, Stéphane Rousseau, Christina E Kourkoulis, Jon Rosand, Zora Y DiPucchio, Matthew Frosch, Claudine Gombert, Bertrand Audoin, Manuéle Mine, Florence Riant, Thierry Frebourg, Didier Hannequin, Dominique Campion, Steven M Greenberg, Elisabeth Tournier-Lasserve, Gaël Nicolas
BACKGROUND: Specific APP mutations cause cerebral amyloid angiopathy (CAA) with or without Alzheimer's disease (AD). OBJECTIVE: We aimed at reporting APP mutations associated with CAA, describe the clinical, cerebrospinal fluid AD biomarkers, and neuroimaging features, and compare them with the data from the literature. METHODS: We performed a retrospective study in two French genetics laboratories by gathering all clinical and neuroimaging data from patients referred for a genetic diagnosis of CAA with an age of onset before 66 years and fulfilling the other Boston revised criteria...
November 14, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27847684/longitudinal-change-in-everyday-function-and-behavioral-symptoms-in-frontotemporal-dementia
#18
Claire M O'Connor, Lindy Clemson, Michael Hornberger, Cristian E Leyton, John R Hodges, Olivier Piguet, Eneida Mioshi
BACKGROUND: The relationship between behavioral changes and functional decline in frontotemporal dementia (FTD) is not well understood. METHODS: Thirty-nine patients (21 behavioral variant FTD [bvFTD], 18 semantic variant primary progressive aphasia [svPPA]) were followed up longitudinally (2-4 years follow-up). Functional (Disability Assessment for Dementia) and behavioral (Cambridge Behavioural Inventory Revised) assessments were included for between-group (pairwise comparisons, mixed model analysis) and within-group analyses (bivariate correlations)...
October 2016: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/27834781/do-cancer-drugs-counteract-neurodegeneration-repurposing-for%C3%A2-alzheimer-s-disease
#19
Fiammetta Monacelli, Michele Cea, Roberta Borghi, Patrizio Odetti, Alessio Nencioni
In spite of in depth investigations in the field of the amyloid cascade hypothesis, so far, no disease modifying therapy has been developed for Alzheimer's disease (AD). The pathophysiology provides some evidence of the inverse correlation between cancer and AD. Both AD and cancer are characterized by abnormal cellular behaviors; trigger factors along with a meta synchronously action is expected to drive cancer or neurodegeneration, supporting, respectively, progressive neuronal loss or uncontrolled cell proliferation in cancer cells...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27802233/multimodal-cognitive-enhancement-therapy-for-patients-with-mild-cognitive-impairment-and-mild-dementia-a%C3%A2-multi-center-randomized-controlled-double-blind-crossover-trial
#20
Ji Won Han, Hyeonggon Lee, Jong Woo Hong, Kayoung Kim, Taehyun Kim, Hye Jin Byun, Ji Won Ko, Jong Chul Youn, Seung-Ho Ryu, Nam-Jin Lee, Chi-Un Pae, Ki Woong Kim
We developed and evaluated the effect of Multimodal Cognitive Enhancement Therapy (MCET) consisting of cognitive training, cognitive stimulations, reality orientation, physical therapy, reminiscence therapy, and music therapy in combination in older people with mild cognitive impairment (MCI) or mild dementia. This study was a multi-center, double-blind, randomized, placebo-controlled, two-period cross-over study (two 8-week treatment phases separated by a 4-week wash-out period). Sixty-four participants with MCI or dementia whose Clinical Dementia Rating was 0...
2017: Journal of Alzheimer's Disease: JAD
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