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Alzheimers and hypertension

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https://www.readbyqxmd.com/read/28071980/metabolic-syndrome-hypertension-and-nervous-system-injury-epidemiological-correlates
#1
Giovanna Ricci, Isabel Pirillo, Daniele Tomassoni, Ascanio Sirignano, Iolanda Grappasonni
: Metabolic syndrome (MetS) is a common and complex disorder combining hypertension, obesity, dyslipidemia, and insulin resistance. MetS represents a risk factor for changes in cognitive functions in older age, and several studies have suggested that MetS may be linked to dementia. This article reviews the main evidences about the relationship between MetS and neurodegenerative disease. Starting from an epidemiological point of view, the article analyzes medico-social aspects related to MetS, considering the reduction of work capacity and the condition of disability that it involves...
January 10, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28055196/discovery-of-novel-phosphodiesterase-2a-inhibitors-by-structure-based-virtual-screening-structural-optimization-and-bioassay
#2
Chen Zhang, Ling-Jun Feng, Yiyou Huang, Deyan Wu, Zhe Li, Qian Zhou, Yinuo Wu, Hai-Bin Luo
Phosphodiesterase-2A (PDE2A) is a potential therapeutic target for treatment of Alzheimer's disease and pulmonary hypertension. However, most of the current PDE2A inhibitors have the moderate selectivity over other PDEs. In the present study, we described the discovery of novel PDE2A inhibitors by structure-based virtual screening combining pharmacophore model screening, molecular docking, molecular dynamics simulations, and bioassay validation. Nine hits out of 30 molecules from the SPECS database (a hit rate of 30%) inhibited PDE2A with affinity less than 50 μM...
January 5, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28054646/an-analysis-of-disease-gene-relationship-from-medline-abstracts-by-digsee
#3
Jeongkyun Kim, Jung-Jae Kim, Hyunju Lee
Diseases are developed by abnormal behavior of genes in biological events such as gene regulation, mutation, phosphorylation, and epigenetics and post-translational modification. Many studies of text mining attempted to identify the relationship between gene and disease by mining the literature, but they did not consider the biological events in which genes show abnormal behaviour in response to diseases. In this study, we propose to identify disease-related genes that are involved in the development of disease through biological events from Medline abstracts...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28035932/effect-of-vascular-risk-factors-on-the-progression-of-mild-alzheimer-s-disease-and-lewy-body-dementia
#4
Anne Katrine Bergland, Ingvild Dalen, Alf Inge Larsen, Dag Aarsland, Hogne Soennesyn
BACKGROUND: Vascular risk factors (VRF) are associated with an increased risk of neurodegenerative disease. OBJECTIVE: To examine the association between VRF and cognitive decline in patients with Alzheimer's disease (AD) and Lewy body dementia (LBD). METHODS: We included consecutive referrals with mild AD or LBD to dementia clinics in western Norway from 2005 to 2013. The Mini-Mental Status Exam (MMSE) and Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) were administered at baseline and then annually for up to five years...
December 30, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28017466/trazodone-utilization-among-the-elderly-in-spain-a-population-based-study
#5
Diego Macías Saint-Gerons, Consuelo Huerta Álvarez, Patricia García Poza, Dolores Montero Corominas, César de la Fuente Honrubia
INTRODUCTION: Trazodone was authorized for the treatment of depression in the 1970s. Several additional therapeutic uses have been proposed due to its heterogeneous mechanism. This study aims to determine the use of trazodone in the elderly in Spain. METHODS: A nationwide, longitudinal and descriptive analysis was conducted using data from patients aged >65 years with a first prescription of trazodone during the period 2002-2011. Information on dose, comorbidities and relevant co-medication was gathered from the Spanish Primary Care database BIFAP...
December 21, 2016: Revista de Psiquiatrí́a y Salud Mental
https://www.readbyqxmd.com/read/28004107/humulus-japonicus-inhibits-the-progression-of-alzheimer-s-disease-in-a-app-ps1-transgenic-mouse-model
#6
Tae-Shin Park, Young-Kyoung Ryu, Hye-Yeon Park, Jae Yun Kim, Jun Go, Jung-Ran Noh, Yong-Hoon Kim, Jung Hwan Hwang, Dong-Hee Choi, Won-Keun Oh, Chul-Ho Lee, Kyoung-Shim Kim
Humulus japonicus Siebold & Zucc. (HJ) has traditionally been administered to patients with pulmonary disease, skin disease and hypertension in Korea, and it is considered to exert anti-inflammatory, antioxidant, antimicrobial and antimycobacterial effects. However, its effects against Alzheimer's disease (AD) have yet to be explored. Thus, this study was carried out to investigate whether HJ has a beneficial effect on the progression of AD in an animal model. A methanolic extract of HJ (500 mg/kg/day) was intragastrically administered to 5-month-old APP/PS1 transgenic (Tg-APP/PS1) mice for 2...
January 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28002662/association-between-lithium-use-and-risk-of-alzheimer-s-disease
#7
Chin Cheng, Peter Zandi, Elizabeth Stuart, Ching-Heng Lin, Pei-Yu Su, G Caleb Alexander, Tsuo-Hung Lan
OBJECTIVE: Current evidence for the association between use of lithium and risk of dementia is mixed. The objective of this study was to assess the risk of Alzheimer's disease associated with use of lithium. METHODS: A population-based, nested case-control study was conducted using data from the National Health Insurance Research Database in 2002 covering 24.5 million beneficiaries of the Taiwan National Health Insurance Program from January 1, 1997, to December 31, 2009...
December 20, 2016: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/27997103/kinetic-isotope-effects-and-transition-state-structure-for-human-phenylethanolamine-n-methyltransferase
#8
Christopher F Stratton, Myles B Poulin, Quan Du, Vern L Schramm
Phenylethanolamine N-methyltransferase (PNMT) catalyzes the S-adenosyl-l-methionine (SAM)-dependent conversion of norepinephrine to epinephrine. Epinephrine has been associated with critical processes in humans including the control of respiration and blood pressure. Additionally, PNMT activity has been suggested to play a role in hypertension and Alzheimer's disease. In the current study, labeled SAM substrates were used to measure primary methyl-(14)C and (36)S and secondary methyl-(3)H, 5'-(3)H, and 5'-(14)C intrinsic kinetic isotope effects for human PNMT...
December 28, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27988430/kinin-receptors-key-regulators-of-autoimmunity
#9
REVIEW
Rafael Cypriano Dutra
The central function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body, and preventing the onset of illness and infection. Moreover, the immune system is constantly challenged to discriminate self vs. non-self and mediate the correct response, a phenomenon called self-tolerance. The failure of mechanisms responsible for self-tolerance and induction of an immune response against components of the self, induces autoimmunity and culminates however, in several autoimmune diseases...
December 15, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27977393/impact-of-hypertension-on-cognitive-function-a-scientific-statement-from-the-american-heart-association
#10
Costantino Iadecola, Kristine Yaffe, José Biller, Lisa C Bratzke, Frank M Faraci, Philip B Gorelick, Martha Gulati, Hooman Kamel, David S Knopman, Lenore J Launer, Jane S Saczynski, Sudha Seshadri, Adina Zeki Al Hazzouri
BACKGROUND: Age-related dementia, most commonly caused by Alzheimer disease or cerebrovascular factors (vascular dementia), is a major public health threat. Chronic arterial hypertension is a well-established risk factor for both types of dementia, but the link between hypertension and its treatment and cognition remains poorly understood. In this scientific statement, a multidisciplinary team of experts examines the impact of hypertension on cognition to assess the state of the knowledge, to identify gaps, and to provide future directions...
December 2016: Hypertension
https://www.readbyqxmd.com/read/27974807/long-term-neprilysin-inhibition-implications-for-arnis
#11
REVIEW
Duncan J Campbell
Neprilysin has a major role in both the generation and degradation of bioactive peptides. LCZ696 (valsartan/sacubitril, Entresto), the first of the new ARNI (dual-acting angiotensin-receptor-neprilysin inhibitor) drug class, contains equimolar amounts of valsartan, an angiotensin-receptor blocker, and sacubitril, a prodrug for the neprilysin inhibitor LBQ657. LCZ696 reduced blood pressure more than valsartan alone in patients with hypertension. In the PARADIGM-HF study, LCZ696 was superior to the angiotensin-converting enzyme inhibitor enalapril for the treatment of heart failure with reduced ejection fraction, and LCZ696 was approved by the FDA for this purpose in 2015...
December 15, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27965247/can-commonly-prescribed-drugs-be-repurposed-for-the-prevention-or-treatment-of-alzheimer-s-and-other-neurodegenerative-diseases-protocol-for-an-observational-cohort-study-in-the-uk-clinical-practice-research-datalink
#12
Venexia M Walker, Neil M Davies, Tim Jones, Patrick G Kehoe, Richard M Martin
INTRODUCTION: Current treatments for Alzheimer's and other neurodegenerative diseases have only limited effectiveness meaning that there is an urgent need for new medications that could influence disease incidence and progression. We will investigate the potential of a selection of commonly prescribed drugs, as a more efficient and cost-effective method of identifying new drugs for the prevention or treatment of Alzheimer's disease, non-Alzheimer's disease dementias, Parkinson's disease and amyotrophic lateral sclerosis...
December 13, 2016: BMJ Open
https://www.readbyqxmd.com/read/27951412/increased-cortical-capillary-transit-time-heterogeneity-in-alzheimer-s-disease-a-dsc-mri-perfusion-study
#13
Simon F Eskildsen, Louise Gyldensted, Kartheeban Nagenthiraja, Rune B Nielsen, Mikkel Bo Hansen, Rikke B Dalby, Jesper Frandsen, Anders Rodell, Carsten Gyldensted, Sune N Jespersen, Torben E Lund, Kim Mouridsen, Hans Brændgaard, Leif Østergaard
Alzheimer's disease (AD) is characterized by the accumulation of hyperphosphorylated tau and neurotoxic Aβ in the brain parenchyma. Hypoxia caused by microvascular changes and disturbed capillary flows could stimulate this build-up of AD-specific proteins in the brain. In this study, we compared cerebral microcirculation in a cohort of AD and mild cognitive impairment (MCI) patients with that of age-matched controls, all without a history of diabetes or of hypertension for more than 2 years, using dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI)...
February 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/27911311/risk-factors-and-pathological-substrates-associated-with-agitation-aggression-in-alzheimer-s-disease-a-preliminary-study-using-nacc-data
#14
Simrin Sennik, Tom A Schweizer, Corinne E Fischer, David G Munoz
BACKGROUND: Neuropsychiatric symptoms are common manifestations of Alzheimer's disease (AD). A number of studies have targeted psychosis, i.e., hallucinations and delusions in AD, but few have assessed agitation/aggression in AD. OBJECTIVE: To investigate the risk factors and pathological substrates associated with presence [A(+)] and absence [A(-)] of agitation/aggression (A) in autopsy-confirmed AD. METHODS: Data was collected from the UDS data as of 2015 on the NACC database...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27893966/vaccination-via-chloroplast-genetics-affordable-protein-drugs-for-the-prevention-and-treatment-of-inherited-or-infectious-human-diseases
#15
Henry Daniell, Hui-Ting Chan, Elise K Pasoreck
Plastid-made biopharmaceuticals treat major metabolic or genetic disorders, including Alzheimer's, diabetes, hypertension, hemophilia, and retinopathy. Booster vaccines made in chloroplasts prevent global infectious diseases, such as tuberculosis, malaria, cholera, and polio, and biological threats, such as anthrax and plague. Recent advances in this field include commercial-scale production of human therapeutic proteins in FDA-approved cGMP facilities, development of tags to deliver protein drugs to targeted human cells or tissues, methods to deliver precise doses, and long-term stability of protein drugs at ambient temperature, maintaining their efficacy...
November 23, 2016: Annual Review of Genetics
https://www.readbyqxmd.com/read/27890723/global-gene-expression-changes-in-the-prefrontal-cortex-of-rabbits-with-hypercholesterolemia-and-or-hypertension
#16
Sau-Yeen Loke, Peter Tsun-Hon Wong, Wei-Yi Ong
Although many studies have identified a link between hypercholesterolemia or hypertension and cognitive deficits, till date, comprehensive gene expression analyses of the brain under these conditions is still lacking. The present study was carried out to elucidate differential gene expression changes in the prefrontal cortex (PFC) of New Zealand white rabbits exposed to hypercholesterolemia and/or hypertension with a view of identifying gene networks at risk. Microarray analyses of the PFC of hypercholesterolemic rabbits showed 850 differentially expressed genes (DEGs) in the cortex of hypercholesterolemic rabbits compared to controls, but only 5 DEGs in hypertensive rabbits compared to controls...
November 25, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/27882038/alzheimer-and-vascular-dementia-in-the-elderly-patients
#17
Naresh Kumar Seetlani, Narindar Kumar, Khalid Imran, Asif Ali, Nadia Shams, Taha Sheikh
OBJECTIVES: To find out the frequency of Alzheimer's and Vascular dementia in the elderly patients. METHODS: This cross sectional descriptive study was conducted in Department of Medicine, Ziauddin Hospital Karachi from 1(st) October 2013 to 31(st) March 2014. Patients with symptoms of dementia for more than 6 months duration, and Mini Mental State Examination score <24 were included in this study. Patients who fell in category of dementia were assessed for duration of symptoms...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27862810/angiotensin-converting-enzyme-insertion-deletion-polymorphism-and-the-longitudinal-progression-of-alzheimer-s-disease
#18
Ping-Song Chou, Meng-Ni Wu, Mei-Chuan Chou, I Chien, Yuan-Han Yang
AIM: The angiotensin-converting enzyme gene (ACE) insertion (I)/deletion (D) polymorphism is considered a biologically plausible gene for Alzheimer's disease (AD) in cross-sectional studies. The present study aimed to investigate the longitudinal effect of ACE I/D polymorphism on AD progression. METHODS: This 3-year observational study investigated the longitudinal effect of ACE I/D polymorphism on AD progression. Clinically diagnosed AD patients with a clinical dementia rating (CDR) of 0...
November 10, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27862654/cerebral-small-vessel-disease-medial-temporal-lobe-atrophy-and-cognitive-status-in-patients-with-ischaemic-stroke-and-transient-ischaemic-attack
#19
F Arba, T Quinn, G J Hankey, M Ali, K R Lees, D Inzitari
BACKGROUND AND PURPOSE: Small vessel disease (SVD) and Alzheimer's disease (AD) are two common causes of cognitive impairment and dementia, traditionally considered as distinct processes. The relationship between radiological features suggestive of AD and SVD was explored, and the association of each of these features with cognitive status at 1 year was investigated in patients with stroke or transient ischaemic attack. METHODS: Anonymized data were accessed from the Virtual International Stroke Trials Archive (VISTA)...
November 14, 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/27837397/from-arb-to-arni-in-cardiovascular-control
#20
REVIEW
Estrellita Uijl, Lodi C W Roksnoer, Ewout J Hoorn, A H Jan Danser
Coexistence of hypertension, diabetes mellitus and chronic kidney disease synergistically aggravates the risk of cardiovascular and renal morbidity and mortality. These high-risk, multi-morbid patient populations benefit less from currently available anti-hypertensive treatment. Simultaneous angiotensin II type 1 receptor blockade and neprilysin inhibition ('ARNI') with valsartan/sacubitril (LCZ696) might potentiate the beneficial effects of renin-angiotensin-aldosterone inhibition by reinforcing its endogenous counterbalance, the natriuretic peptide system...
December 2016: Current Hypertension Reports
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