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https://www.readbyqxmd.com/read/28719802/cerebral-hypoperfusion-is-not-associated-with-an-increase-in-%C3%AE-amyloid-pathology-in-middle-aged-or-elderly-people
#1
O Hansson, S Palmqvist, H Ljung, T Cronberg, D van Westen, R Smith
INTRODUCTION: It is hypothesized that cerebral hypoperfusion promotes the development of Alzheimer pathology. We therefore studied whether longstanding cerebral hypoperfusion is associated with Alzheimer pathology in nondemented humans. METHODS: Cerebral blood flow and β-amyloid ((18)F-Flutemetamol) positron emission tomography retention were assessed in eleven patients with unilateral occlusion of precerebral arteries resulting in chronic and uneven hypoperfusion...
July 15, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28719359/levodopa-in-parkinson-s-disease-a-review-of-population-pharmacokinetics-pharmacodynamics-analysis
#2
Amélie Marsot, Romain Guilhaumou, Jean Philippe Azulay, Olivier Blin
BACKGROUND: Parkinson's disease is the second most common neurodegenerative disorder after Alzheimer's disease. Although levodopa remains the single effective agent in the management of Parkinson's disease, the accurate determination of this optimal dosage is complicated by marked between-subject and between-occasion variability in this population.  This review presents a synthesis of the population pharmacokinetic and pharmacodynamic models of levodopa described in Parkinson's disease...
2017: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28719018/ante-mortem-csf-tau-levels-correlate-with-post-mortem-tau-pathology-in-ftld
#3
D J Irwin, A Lleó, S X Xie, C T McMillan, D Wolk, E B Lee, V M Van Deerlin, L M Shaw, J Q Trojanowski, M Grossman
OBJECTIVE: To test the hypotheses that 1) antemortem cerebrospinal fluid tau levels correlate with postmortem tau pathology in frontotemporal lobar degeneration and 2) tauopathy patients have higher phosphorylated-tau levels compared to TDP-43 proteinopathy patients while accounting for Alzheimer's disease co-pathology. METHODS: Patients had autopsy-confirmed frontotemporal lobar degeneration with tauopathy (n=31), TDP-43 proteinopathy (n=49), or Alzheimer's disease (n=26) with antemortem cerebrospinal fluid...
July 18, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28717417/analysis-of-extracellular-rna-in-cerebrospinal-fluid
#4
Julie A Saugstad, Theresa A Lusardi, Kendall R Van Keuren-Jensen, Jay I Phillips, Babett Lind, Christina A Harrington, Trevor J McFarland, Amanda L Courtright, Rebecca A Reiman, Ashish S Yeri, M Yashar S Kalani, P David Adelson, Jorge Arango, John P Nolan, Erika Duggan, Karen Messer, Johnny C Akers, Douglas R Galasko, Joseph F Quinn, Bob S Carter, Fred H Hochberg
We examined the extracellular vesicle (EV) and RNA composition of pooled normal cerebrospinal fluid (CSF) samples and CSF from five major neurological disorders: Alzheimer's disease (AD), Parkinson's disease (PD), low-grade glioma (LGG), glioblastoma multiforme (GBM), and subarachnoid haemorrhage (SAH), representing neurodegenerative disease, cancer, and severe acute brain injury. We evaluated: (I) size and quantity of EVs by nanoparticle tracking analysis (NTA) and vesicle flow cytometry (VFC), (II) RNA yield and purity using four RNA isolation kits, (III) replication of RNA yields within and between laboratories, and (IV) composition of total and EV RNAs by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and RNA sequencing (RNASeq)...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28715596/influence-of-physical-exercise-on-%C3%AE-amyloid-%C3%AE-synuclein-and-tau-accumulation-an-in-vitro-model-of-oxidative-stress-in-human-red-blood-cells
#5
C Iofrida, S Daniele, D Pietrobono, J Fusi, F Galetta, M L Trincavelli, U Bonuccelli, F Franzoni, C Martini
A common pathological feature of neurodegenerative disorders (NDs), such as Alzheimer's (AD) and Parkinson's (PD) diseases, is the abnormal accumulation and misfolding of specific proteins, primarily α-synuclein (α-syn), β-amyloid1-42 (Aβ) and tau, in brain and in peripheral tissues too. Oxidative stress has been proved to be involved in NDs at various levels and, in particular, in such protein alterations, on the contrary physical activity is emerging as a counteracting factor in NDs. In the present work, the content of Aβ, α-syn and tau in red blood cells (RBCs) derived from ten endurance athletes (ATHL) and ten sedentary volunteers (SED) were compared before and after in vitrooxidative stress treatment...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28714976/rare-coding-variants-in-plcg2-abi3-and-trem2-implicate-microglial-mediated-innate-immunity-in-alzheimer-s-disease
#6
Rebecca Sims, Sven J van der Lee, Adam C Naj, Céline Bellenguez, Nandini Badarinarayan, Johanna Jakobsdottir, Brian W Kunkle, Anne Boland, Rachel Raybould, Joshua C Bis, Eden R Martin, Benjamin Grenier-Boley, Stefanie Heilmann-Heimbach, Vincent Chouraki, Amanda B Kuzma, Kristel Sleegers, Maria Vronskaya, Agustin Ruiz, Robert R Graham, Robert Olaso, Per Hoffmann, Megan L Grove, Badri N Vardarajan, Mikko Hiltunen, Markus M Nöthen, Charles C White, Kara L Hamilton-Nelson, Jacques Epelbaum, Wolfgang Maier, Seung-Hoan Choi, Gary W Beecham, Cécile Dulary, Stefan Herms, Albert V Smith, Cory C Funk, Céline Derbois, Andreas J Forstner, Shahzad Ahmad, Hongdong Li, Delphine Bacq, Denise Harold, Claudia L Satizabal, Otto Valladares, Alessio Squassina, Rhodri Thomas, Jennifer A Brody, Liming Qu, Pascual Sánchez-Juan, Taniesha Morgan, Frank J Wolters, Yi Zhao, Florentino Sanchez Garcia, Nicola Denning, Myriam Fornage, John Malamon, Maria Candida Deniz Naranjo, Elisa Majounie, Thomas H Mosley, Beth Dombroski, David Wallon, Michelle K Lupton, Josée Dupuis, Patrice Whitehead, Laura Fratiglioni, Christopher Medway, Xueqiu Jian, Shubhabrata Mukherjee, Lina Keller, Kristelle Brown, Honghuang Lin, Laura B Cantwell, Francesco Panza, Bernadette McGuinness, Sonia Moreno-Grau, Jeremy D Burgess, Vincenzo Solfrizzi, Petra Proitsi, Hieab H Adams, Mariet Allen, Davide Seripa, Pau Pastor, L Adrienne Cupples, Nathan D Price, Didier Hannequin, Ana Frank-García, Daniel Levy, Paramita Chakrabarty, Paolo Caffarra, Ina Giegling, Alexa S Beiser, Vilmantas Giedraitis, Harald Hampel, Melissa E Garcia, Xue Wang, Lars Lannfelt, Patrizia Mecocci, Gudny Eiriksdottir, Paul K Crane, Florence Pasquier, Virginia Boccardi, Isabel Henández, Robert C Barber, Martin Scherer, Lluis Tarraga, Perrie M Adams, Markus Leber, Yuning Chen, Marilyn S Albert, Steffi Riedel-Heller, Valur Emilsson, Duane Beekly, Anne Braae, Reinhold Schmidt, Deborah Blacker, Carlo Masullo, Helena Schmidt, Rachelle S Doody, Gianfranco Spalletta, W T Longstreth Jr, Thomas J Fairchild, Paola Bossù, Oscar L Lopez, Matthew P Frosch, Eleonora Sacchinelli, Bernardino Ghetti, Qiong Yang, Ryan M Huebinger, Frank Jessen, Shuo Li, M Ilyas Kamboh, John Morris, Oscar Sotolongo-Grau, Mindy J Katz, Chris Corcoran, Melanie Dunstan, Amy Braddel, Charlene Thomas, Alun Meggy, Rachel Marshall, Amy Gerrish, Jade Chapman, Miquel Aguilar, Sarah Taylor, Matt Hill, Mònica Díez Fairén, Angela Hodges, Bruno Vellas, Hilkka Soininen, Iwona Kloszewska, Makrina Daniilidou, James Uphill, Yogen Patel, Joseph T Hughes, Jenny Lord, James Turton, Annette M Hartmann, Roberta Cecchetti, Chiara Fenoglio, Maria Serpente, Marina Arcaro, Carlo Caltagirone, Maria Donata Orfei, Antonio Ciaramella, Sabrina Pichler, Manuel Mayhaus, Wei Gu, Alberto Lleó, Juan Fortea, Rafael Blesa, Imelda S Barber, Keeley Brookes, Chiara Cupidi, Raffaele Giovanni Maletta, David Carrell, Sandro Sorbi, Susanne Moebus, Maria Urbano, Alberto Pilotto, Johannes Kornhuber, Paolo Bosco, Stephen Todd, David Craig, Janet Johnston, Michael Gill, Brian Lawlor, Aoibhinn Lynch, Nick C Fox, John Hardy, Roger L Albin, Liana G Apostolova, Steven E Arnold, Sanjay Asthana, Craig S Atwood, Clinton T Baldwin, Lisa L Barnes, Sandra Barral, Thomas G Beach, James T Becker, Eileen H Bigio, Thomas D Bird, Bradley F Boeve, James D Bowen, Adam Boxer, James R Burke, Jeffrey M Burns, Joseph D Buxbaum, Nigel J Cairns, Chuanhai Cao, Chris S Carlson, Cynthia M Carlsson, Regina M Carney, Minerva M Carrasquillo, Steven L Carroll, Carolina Ceballos Diaz, Helena C Chui, David G Clark, David H Cribbs, Elizabeth A Crocco, Charles DeCarli, Malcolm Dick, Ranjan Duara, Denis A Evans, Kelley M Faber, Kenneth B Fallon, David W Fardo, Martin R Farlow, Steven Ferris, Tatiana M Foroud, Douglas R Galasko, Marla Gearing, Daniel H Geschwind, John R Gilbert, Neill R Graff-Radford, Robert C Green, John H Growdon, Ronald L Hamilton, Lindy E Harrell, Lawrence S Honig, Matthew J Huentelman, Christine M Hulette, Bradley T Hyman, Gail P Jarvik, Erin Abner, Lee-Way Jin, Gyungah Jun, Anna Karydas, Jeffrey A Kaye, Ronald Kim, Neil W Kowall, Joel H Kramer, Frank M LaFerla, James J Lah, James B Leverenz, Allan I Levey, Ge Li, Andrew P Lieberman, Kathryn L Lunetta, Constantine G Lyketsos, Daniel C Marson, Frank Martiniuk, Deborah C Mash, Eliezer Masliah, Wayne C McCormick, Susan M McCurry, Andrew N McDavid, Ann C McKee, Marsel Mesulam, Bruce L Miller, Carol A Miller, Joshua W Miller, John C Morris, Jill R Murrell, Amanda J Myers, Sid O'Bryant, John M Olichney, Vernon S Pankratz, Joseph E Parisi, Henry L Paulson, William Perry, Elaine Peskind, Aimee Pierce, Wayne W Poon, Huntington Potter, Joseph F Quinn, Ashok Raj, Murray Raskind, Barry Reisberg, Christiane Reitz, John M Ringman, Erik D Roberson, Ekaterina Rogaeva, Howard J Rosen, Roger N Rosenberg, Mark A Sager, Andrew J Saykin, Julie A Schneider, Lon S Schneider, William W Seeley, Amanda G Smith, Joshua A Sonnen, Salvatore Spina, Robert A Stern, Russell H Swerdlow, Rudolph E Tanzi, Tricia A Thornton-Wells, John Q Trojanowski, Juan C Troncoso, Vivianna M Van Deerlin, Linda J Van Eldik, Harry V Vinters, Jean Paul Vonsattel, Sandra Weintraub, Kathleen A Welsh-Bohmer, Kirk C Wilhelmsen, Jennifer Williamson, Thomas S Wingo, Randall L Woltjer, Clinton B Wright, Chang-En Yu, Lei Yu, Fabienne Garzia, Feroze Golamaully, Gislain Septier, Sebastien Engelborghs, Rik Vandenberghe, Peter P De Deyn, Carmen Muñoz Fernadez, Yoland Aladro Benito, Hakan Thonberg, Charlotte Forsell, Lena Lilius, Anne Kinhult-Stählbom, Lena Kilander, RoseMarie Brundin, Letizia Concari, Seppo Helisalmi, Anne Maria Koivisto, Annakaisa Haapasalo, Vincent Dermecourt, Nathalie Fievet, Olivier Hanon, Carole Dufouil, Alexis Brice, Karen Ritchie, Bruno Dubois, Jayanadra J Himali, C Dirk Keene, JoAnn Tschanz, Annette L Fitzpatrick, Walter A Kukull, Maria Norton, Thor Aspelund, Eric B Larson, Ron Munger, Jerome I Rotter, Richard B Lipton, María J Bullido, Albert Hofman, Thomas J Montine, Eliecer Coto, Eric Boerwinkle, Ronald C Petersen, Victoria Alvarez, Fernando Rivadeneira, Eric M Reiman, Maura Gallo, Christopher J O'Donnell, Joan S Reisch, Amalia Cecilia Bruni, Donald R Royall, Martin Dichgans, Mary Sano, Daniela Galimberti, Peter St George-Hyslop, Elio Scarpini, Debby W Tsuang, Michelangelo Mancuso, Ubaldo Bonuccelli, Ashley R Winslow, Antonio Daniele, Chuang-Kuo Wu, Oliver Peters, Benedetta Nacmias, Matthias Riemenschneider, Reinhard Heun, Carol Brayne, David C Rubinsztein, Jose Bras, Rita Guerreiro, Ammar Al-Chalabi, Christopher E Shaw, John Collinge, David Mann, Magda Tsolaki, Jordi Clarimón, Rebecca Sussams, Simon Lovestone, Michael C O'Donovan, Michael J Owen, Timothy W Behrens, Simon Mead, Alison M Goate, Andre G Uitterlinden, Clive Holmes, Carlos Cruchaga, Martin Ingelsson, David A Bennett, John Powell, Todd E Golde, Caroline Graff, Philip L De Jager, Kevin Morgan, Nilufer Ertekin-Taner, Onofre Combarros, Bruce M Psaty, Peter Passmore, Steven G Younkin, Claudine Berr, Vilmundur Gudnason, Dan Rujescu, Dennis W Dickson, Jean-François Dartigues, Anita L DeStefano, Sara Ortega-Cubero, Hakon Hakonarson, Dominique Campion, Merce Boada, John Keoni Kauwe, Lindsay A Farrer, Christine Van Broeckhoven, M Arfan Ikram, Lesley Jones, Jonathan L Haines, Christophe Tzourio, Lenore J Launer, Valentina Escott-Price, Richard Mayeux, Jean-François Deleuze, Najaf Amin, Peter A Holmans, Margaret A Pericak-Vance, Philippe Amouyel, Cornelia M van Duijn, Alfredo Ramirez, Li-San Wang, Jean-Charles Lambert, Sudha Seshadri, Julie Williams, Gerard D Schellenberg
We identified rare coding variants associated with Alzheimer's disease in a three-stage case-control study of 85,133 subjects. In stage 1, we genotyped 34,174 samples using a whole-exome microarray. In stage 2, we tested associated variants (P < 1 × 10(-4)) in 35,962 independent samples using de novo genotyping and imputed genotypes. In stage 3, we used an additional 14,997 samples to test the most significant stage 2 associations (P < 5 × 10(-8)) using imputed genotypes. We observed three new genome-wide significant nonsynonymous variants associated with Alzheimer's disease: a protective variant in PLCG2 (rs72824905: p...
July 17, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28714400/cholinesterase-inhibitory-activity-of-some-semi-rigid-spiro-heterocycles-pom-analyses-and-crystalline-structure-of-pharmacophore-site
#7
Taibi Ben Hadda, Oualid Talhi, Artur S M Silva, Fatma Sezer Senol, Ilkay Erdogan Orhan, Abdur Rauf, Yahia N Mabkhot, Khaldoun Bachari, Ismail Warad, Thoraya A Farghaly, Ismail I Althagafi, Mohammad S Mubarak
Cholinesterase family consists of two sister enzymes; acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) which hydrolyze acetylcholine. Since deficit of acetylcholine has been evidenced in the patients of Alzheimer's disease (AD), cholinesterase inhibitors are currently the most prescribed drug class for the treatment of AD. In the present study, five compounds (2-6) with spiro skeleton have been synthesized and tested for their inhibitory potential in vitro against AChE and BChE using ELISA microtiter plate assays at 25 mg/mL...
July 13, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28714390/cdk5-and-mapt-gene-expression-in-alzheimer-s-disease-brain-samples
#8
Josianne Thomazini Fukasawa, Roger Willian de Labio, Lucas Trevizani Rasmussen, Lucieni Conterno de Oliveira, Elizabeth Chen, João Villares, Gustavo Tureck, Marília de Arruda Cardoso Smith, Spencer Luiz Marques Payão
BACKGROUND: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by extracellular amyloid plaque and neurofibrillary tangles in the brain. Studies have shown that neurons are able to re-enter the cell cycle, but not enough to enable full replication. This leads to cell death and consequent neurodegeneration. OBJECTIVE: This study aimed to characterize the expression of the MAPT gene and CDK5 (the gene involved in cell cycle regulation) in brain samples from patients with AD and controls...
July 13, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28713690/three-dimensional-stereotactic-surface-projection-in-the-statistical-analysis-of-single-photon-emission-computed-tomography-data-for-distinguishing-between-alzheimer-s-disease-and-depression
#9
Eiji Kirino
AIM: To evaluate usefulness of single photon emission computed tomography (SPECT) with three-dimensional stereotactic surface projection (3D-SSP) in distinguishing between Alzheimer's disease (AD) and depression. METHODS: We studied 43 patients who presented with both depressive symptoms and memory disturbance. Each subject was evaluated using the following: (1) the Minimal Mental State Examination; (2) the Hamilton Rating Scale for Depression; (3) Clinical Global Impression-Severity scale (CGI-S); and (4) SPECT imaging with 3D-SSP...
June 22, 2017: World Journal of Psychiatry
https://www.readbyqxmd.com/read/28713585/associations-of-centrally-acting-ace-inhibitors-with-cognitive-decline-and-survival-in-alzheimer-s-disease
#10
Karim Fazal, Gayan Perera, Mizanur Khondoker, Robert Howard, Robert Stewart
BACKGROUND: Cognitive improvement has been reported in patients receiving centrally acting angiotensin-converting enzyme inhibitors (C-ACEIs). AIMS: To compare cognitive decline and survival after diagnosis of Alzheimer's disease between people receiving C-ACEIs, non-centrally acting angiotensin-converting enzyme inhibitors (NC-ACEIs), and neither. METHOD: Routine Mini-Mental State Examination (MMSE) scores were extracted in 5260 patients receiving acetylcholinesterase inhibitors and analysed against C-/NC-ACEI exposure at the time of Alzheimer's disease diagnosis...
July 2017: BJPsych Open
https://www.readbyqxmd.com/read/28710722/organosulfur-compound-protects-against-memory-decline-induced-by-scopolamine-through-modulation-of-oxidative-stress-and-na-k-atpase-activity-in-mice
#11
Fernanda D da Silva, Mikaela P Pinz, Renata L de Oliveira, Karline C Rodrigues, Francine R Ianiski, Mariana M Bassaco, Claudio C Silveira, Cristiano R Jesse, Silvane S Roman, Ethel A Wilhelm, Cristiane Luchese
The present study investigated the possible effect of BMMS in protecting against memory impairment in an Alzheimer's disease model induced by scopolamine in mice. Another objective was to evaluate the involvement of oxidative stress and Na(+)/K(+) ATPase activity in cerebral cortex and hippocampus of mice. Male Swiss mice were divided into four groups: groups I and III received canola oil (10 ml/kg, intragastrically (i.g.)), while groups II and IV received BMMS (10 mg/kg, i.g.). Thirty minutes after treatments, groups III and IV received scopolamine (1 mg/kg, intraperitoneal (i...
July 14, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28709938/a-cross-sectional-comparison-of-brain-glucose-and-ketone-metabolism-in-cognitively-healthy-older-adults-mild-cognitive-impairment-and-early-alzheimer-s-disease
#12
E Croteau, C A Castellano, M Fortier, C Bocti, T Fulop, N Paquet, S C Cunnane
INTRODUCTION: Deteriorating brain glucose metabolism precedes the clinical onset of Alzheimer's disease (AD) and appears to contribute to its etiology. Ketone bodies, mainly β-hydroxybutyrate and acetoacetate, are the primary alternative brain fuel to glucose. Some reports suggest that brain ketone metabolism is unchanged in AD but, to our knowledge, no such data are available for MCI. OBJECTIVE: To compare brain energy metabolism (glucose and acetoacetate) and some brain morphological characteristics in cognitively healthy older adult controls (CTL), mild cognitive impairment (MCI) and early AD...
July 11, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28709585/patients-come-from-populations-and-populations-contain-patients-a-two-stage-scientific-and-ethics-review-the-next-adaptation-for-single-institutional-review-boards
#13
David Knopman, Eli Alford, Kaitlin Tate, Mark Long, Ara S Khachaturian
INTRODUCTION: For nearly 50 years, institutional review boards (IRB) and independent ethics committees have featured local oversight as a core function of research ethics reviews. However growing complexity in Alzheimer's clinical research suggests current approaches to research volunteer safety is hampering development of new therapeutics. As a partial response to this challenge, the NIH has mandated that all NIH-funded multi-site studies will use a single Institutional Review Board...
July 11, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28707657/-transmission-of-pathogenic-protein-aggregates-in-alzheimer-s-disease
#14
A L Schwarzman, S V Sarantseva
Deposits of amyloid peptide Aβ and intracellular aggregates of hyperphosphorylated tau protein in the brain of patients are major neuropathological features of Alzheimer's disease (AD). For a long time, the possibility of horizontal transmission of Aβ aggregates from cell to cell and from person to person remained hypothetical, since there was no experimental evidence. However, in 1993, the formation of senile plaques was confirmed in the brains of animals after intracerebral injections of AD patient brain homogenates or homogenates of the brain of transgenic mice enriched with Aβ aggregates...
May 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28705819/mri-of-the-swallow-tail-sign-a-useful-marker-in-the-diagnosis-of-lewy-body-dementia
#15
S Shams, D Fällmar, S Schwarz, L-O Wahlund, D van Westen, O Hansson, E-M Larsson, S Haller
BACKGROUND AND PURPOSE: There are, to date, no MR imaging diagnostic markers for Lewy body dementia. Nigrosome 1, containing dopaminergic cells, in the substantia nigra pars compacta is hyperintense on SWI and has been called the swallow tail sign, disappearing with Parkinson disease. We aimed to study the swallow tail sign and its clinical applicability in Lewy body dementia and hypothesized that the sign would be likewise applicable in Lewy body dementia. MATERIALS AND METHODS: This was a retrospective cross-sectional multicenter study including 97 patients (mean age, 65 ± 10 years; 46% women), consisting of the following: controls (n = 21) and those with Lewy body dementia (n = 19), Alzheimer disease (n = 20), frontotemporal lobe dementia (n = 20), and mild cognitive impairment (n = 17)...
July 13, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28704261/no-independent-association-between-pulse-wave-velocity-and-dementia-a-population-based-prospective-study
#16
Erik D Nilsson, Sölve Elmståhl, Lennart Minthon, Mats Pihlsgård, Peter M Nilsson, Oskar Hansson, Katarina Nägga
OBJECTIVE: Carotid-femoral pulse wave velocity (CFPWV), a marker of aortic stiffness, has been associated with cognitive test results and markers of cerebral small vessel disease, but its association with dementia has not been studied in detail. Our aim was to assess the association of CFPWV with prevalent and incident dementia in a large population-based study. METHODS: In total, CFPWV was measured in 3056 participants of the Malmö Diet and Cancer study 2007-2012 (age range 61-85 years)...
July 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28702935/vitamin-d3-attenuates-cognitive-deficits-and-neuroinflammatory-responses-in-icv-stz-induced-sporadic-alzheimer-s-disease
#17
P Yamini, R S Ray, Kanwaljit Chopra
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by intracellular neurofibrillary tangles and extracellular Aβ deposition. Growing experimental evidence indicate diverse biological effects of vitamin D3 including antioxidant, neuroprotective, anti-inflammatory and cardiovascular benefits. However, the underlying neuroprotective mechanism of vitamin D3 is still largely elusive. Therefore, the present study was aimed to investigate the neuroprotective effects of vitamin D3 on ICV-STZ induced sporadic AD...
July 12, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28702365/abnormal-amyloid-%C3%AE-42-expression-and-increased-oxidative-stress-in-plasma-of-ckd-patients-with-cognitive-dysfunction-a-small-scale-case-control-study-comparison-with-alzheimer-s-disease
#18
G Vinothkumar, C Kedharnath, S Krishnakumar, S Sreedhar, K Preethikrishnan, S Dinesh, A Sundaram, D Balakrishnan, G Shivashekar, Sureshkumar, P Venkataraman
BACKGROUND: Cognitive dysfunction has been increasingly recognized in chronic kidney disease (CKD) patients. Senile plaques are important pathophysiological characteristic of cognitive dysfunction. The major component of plaques is the amyloid β (Aβ) peptide released from proteolytic cleavage of amyloid precursor protein (APP). Plasma Aβ has been a focus of the growing literature on blood based biomarkers for cognitive dysfunction. Oxidative stress is prevalent in CKD and it plays an important role in cognitive dysfunction...
December 2017: BBA Clinical
https://www.readbyqxmd.com/read/28701379/loss-of-clusterin-shifts-amyloid-deposition-to-the-cerebrovasculature-via-disruption-of-perivascular-drainage-pathways
#19
Aleksandra M Wojtas, Silvia S Kang, Benjamin M Olley, Maureen Gatherer, Mitsuru Shinohara, Patricia A Lozano, Chia-Chen Liu, Aishe Kurti, Kelsey E Baker, Dennis W Dickson, Mei Yue, Leonard Petrucelli, Guojun Bu, Roxana O Carare, John D Fryer
Alzheimer's disease (AD) is characterized by amyloid-β (Aβ) peptide deposition in brain parenchyma as plaques and in cerebral blood vessels as cerebral amyloid angiopathy (CAA). CAA deposition leads to several clinical complications, including intracerebral hemorrhage. The underlying molecular mechanisms that regulate plaque and CAA deposition in the vast majority of sporadic AD patients remain unclear. The clusterin (CLU) gene is genetically associated with AD and CLU has been shown to alter aggregation, toxicity, and blood-brain barrier transport of Aβ, suggesting it might play a key role in regulating the balance between Aβ deposition and clearance in both brain and blood vessels...
July 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28700937/%C3%AE-fosb-regulates-gene-expression-and-cognitive-dysfunction-in-a-mouse-model-of-alzheimer-s-disease
#20
Brian F Corbett, Jason C You, Xiaohong Zhang, Mark S Pyfer, Umberto Tosi, Daniel M Iascone, Iraklis Petrof, Anupam Hazra, Chia-Hsuan Fu, Gabriel S Stephens, Annie A Ashok, Suzan Aschmies, Lijuan Zhao, Eric J Nestler, Jeannie Chin
Alzheimer's disease (AD) is characterized by cognitive decline and 5- to 10-fold increased seizure incidence. How seizures contribute to cognitive decline in AD or other disorders is unclear. We show that spontaneous seizures increase expression of ΔFosB, a highly stable Fos-family transcription factor, in the hippocampus of an AD mouse model. ΔFosB suppressed expression of the immediate early gene c-Fos, which is critical for plasticity and cognition, by binding its promoter and triggering histone deacetylation...
July 11, 2017: Cell Reports
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