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https://www.readbyqxmd.com/read/28728066/baseline-serum-phosphatidylcholine-plasmalogen-concentrations-are-inversely-associated-with-incident-myocardial-infarction-in-patients-with-mixed-peripheral-artery-disease-presentations
#1
Joseph V Moxon, Rhondda E Jones, Gerard Wong, Jacquelyn M Weir, Natalie A Mellett, Bronwyn A Kingwell, Peter J Meikle, Jonathan Golledge
BACKGROUND AND AIMS: Despite current best care, patients with peripheral artery disease (PAD) remain at high risk of myocardial infarction, and biomarkers to more accurately assess cardiovascular risk are needed. This study assessed the relationship between the serum lipidome and incident myocardial infarction in a cohort of PAD patients. METHODS: 265 PAD patients were followed up for a median of 23 months, during which 18 people suffered a myocardial infarction...
June 29, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28659610/upregulation-of-arylsulfatase-b-in-carotid-atherosclerosis-is-associated-with-symptoms-of-cerebral-embolization
#2
Erik Biros, Corey S Moran, Jane Maguire, Elizabeth Holliday, Christopher Levi, Jonathan Golledge
The aim of this study was to identify genes for which the expression within carotid atherosclerosis was reproducibly associated with the symptoms of cerebral embolization. Two publically available microarray datasets E-MEXP-2257 and GSE21545 were analysed using GeneSpring 11.5. The two datasets utilized a total of 22 and 126 carotid atherosclerosis samples, obtained from patients with and without symptoms of cerebral embolization, respectively. To assess whether the findings were reproducible we analysed carotid atherosclerosis samples from another 8 patients with and 7 patients without symptoms of cerebral embolization using real-time PCR...
June 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28575088/effect-of-blood-pressure-lowering-medications-on-leg-ischemia-in-peripheral-artery-disease-patients-a-meta-analysis-of-randomised-controlled-trials
#3
Diana Thomas Manapurathe, Smriti Murali Krishna, Brittany Dewdney, Joseph Vaughan Moxon, Erik Biros, Jonathan Golledge
BACKGROUND: It has been suggested that anti-hypertensive medications may worsen leg ischemia in peripheral artery disease (PAD) patients. We undertook a meta-analysis to assess the effect of anti-hypertensive medications on measures of leg ischemia including maximum walking distance (MWD), pain free walking distance (PFWD) and ankle brachial pressure index (ABPI). A meta-regression was performed to evaluate whether the effect of the anti-hypertensive medications on mean arterial pressure (MAP) was associated with changes in ABPI, MWD or PFWD...
2017: PloS One
https://www.readbyqxmd.com/read/28539162/longevity-klotho-gene-polymorphism-and-the-risk-of-dementia-in-older-men
#4
Osvaldo P Almeida, Bharti Morar, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Assen Jablensky, Leon Flicker
INTRODUCTION: Klotho variants (KL-VS) have been associated with increased longevity and better cognitive function. It is unclear whether they modulate dementia risk. METHODS: We recruited 527 men aged 71-87 years who were free of cognitive impairment. We used data linkage to track the onset of dementia over 10 years. KL-VS genotyping (rs9536314 T/G) followed standard procedures. RESULTS: The annual rate of dementia was 17.2‰ (95%CI=14.0-21...
July 2017: Maturitas
https://www.readbyqxmd.com/read/28450836/renal-denervation-promotes-atherosclerosis-in-hypertensive-apolipoprotein-e-deficient-mice-infused-with-angiotensin-ii
#5
Yutang Wang, Tam N Dinh, Alexander Nield, Smriti M Krishna, Kate Denton, Jonathan Golledge
Objective: To determine the effect of renal denervation (RDN) on the severity of atherosclerosis and aortic aneurysm in hypertensive mice. Methods: Hypertension, atherosclerosis and aortic aneurysm were induced by subcutaneous infusion of angiotensin II (1 μg/kg/min) for 28 days in apolipoprotein E-deficient mice. RDN was conducted using combined surgical and local chemical denervation. The norepinephrine concentration in the kidney was measured by high-performance liquid chromatography. Blood pressure was measured by the tail-cuff method...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28438901/systolic-blood-pressure-and-vascular-disease-in-men-aged-65-years-and-over-the-hims-health-in-men-study
#6
Ben Lacey, Jonathan Golledge, Bu B Yeap, Sarah Lewington, Kieran A McCaul, Paul E Norman, Leon Flicker, Osvaldo P Almeida, Graeme J Hankey
There is uncertainty about the relation between blood pressure and vascular disease at older age. We assessed the association of systolic blood pressure (SBP) and major vascular events in a prospective cohort study of 7564 men aged 65 to 94 years, recruited in 1996-1999 from the general population in Perth, Western Australia. SBP was measured at baseline and again at resurvey in 2001-2004. Participants were monitored for fatal and nonfatal vascular events. To limit the effect of reverse causality, analyses were restricted to men without previous vascular disease at baseline...
June 2017: Hypertension
https://www.readbyqxmd.com/read/28386544/use-of-nanoparticles-as-contrast-agents-for-the-functional-and-molecular-imaging-of-abdominal-aortic-aneurysm
#7
REVIEW
Theophilus I Emeto, Faith O Alele, Amy M Smith, Felicity M Smith, Tammy Dougan, Jonathan Golledge
Abdominal aortic aneurysm (AAA) is a degenerative disease of the aorta common in adults older than 65 years of age. AAA is usually imaged using ultrasound or computed tomography. Molecular imaging technologies employing nanoparticles (NPs) have been proposed as novel ways to quantify pathological processes, such as inflammation, within AAAs as a means to identify the risk of rapid progression or rupture. This article reviews the current evidence supporting the role of NP-based imaging in the management of AAA...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28364044/high-serum-thrombospondin-1-concentration-is-associated-with-slower-abdominal-aortic-aneurysm-growth-and-deficiency-promotes-angiotensin-ii-induced-aneurysm-in-mice
#8
Smriti M Krishna, Saiwang Seto, Roby Jose, Jiaze Li, Joseph V Moxon, Paula Clancy, David J Crossman, Paul E Norman, Theophilus I Emeto, Jonathan Golledge
Abdominal aortic aneurysm (AAA) is a common age-related vascular disease characterized by progressive weakening and dilatation of the aortic wall. Thrombospondin-1 (TSP-1; gene Thbs1) is a member of the matricellular protein family important in the control of extracellular matrix remodeling. In this study, the association of serum TSP-1 concentration with AAA progression was assessed in 276 men that underwent repeat ultrasound for a median 5.5 years. AAA growth was negatively correlated with serum TSP-1 concentration ( Spearman's rho (-)0...
March 31, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28347473/a-systematic-review-investigating-the-association-of-micrornas-with-human-abdominal-aortic-aneurysms
#9
REVIEW
Vikram Iyer, Sophie Rowbotham, Erik Biros, John Bingley, Jonathan Golledge
BACKGROUND AND AIMS: There is increasing interest in identifying novel methods for abdominal aortic aneurysm (AAA) diagnosis. Non-coding RNA molecules such as microRNAs (miRNAs) are stable within the circulation and may serve as biomarkers for AAA. This systematic review aimed to identify miRNAs associated with a diagnosis of human AAA based on currently published original research. METHODS: A systematic search of the MEDLINE and EMBASE databases identified studies assessing miRNA expression in abdominal aortic tissue or circulating blood from human AAA cases compared to non-aneurysmal controls...
June 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28220880/parenteral-administration-of-factor-xa-iia-inhibitors-limits-experimental-aortic-aneurysm-and-atherosclerosis
#10
Corey S Moran, Sai-Wang Seto, Smriti M Krishna, Surabhi Sharma, Roby J Jose, Erik Biros, Yutang Wang, Susan K Morton, Jonathan Golledge
Intraluminal thrombus is a consistent feature of human abdominal aortic aneurysm (AAA). Coagulation factor Xa (FXa) catalyses FII to thrombin (FIIa). We examined the effect of FXa/FIIa inhibition on experimental aortic aneurysm in apolipoprotein E-deficient (ApoE(-/-)) mice infused with angiotensin II (AngII). The concentration of FXa within the supra-renal aorta (SRA) correlated positively with SRA diameter. Parenteral administration of enoxaparin (FXa/IIa inhibitor) and fondaparinux (FXa inhibitor) over 14 days reduced to severity of aortic aneurysm and atherosclerosis in AngII-infused ApoE(-/-) mice...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209742/cardiorespiratory-fitness-modulates-the-acute-flow-mediated-dilation-response-following-high-intensity-but-not-moderate-intensity-exercise-in-elderly-men
#11
Tom G Bailey, Maria Perissiou, Mark Windsor, Fraser D Russell, Jonathan Golledge, Daniel J Green, Christopher D Askew
Impaired endothelial function is observed with ageing and with low cardiorespiratory fitness (VO2peak) whilst improvements in both are suggested to be reliant on higher-intensity exercise in the elderly. This may be due to the flow-mediated dilation (FMD) response to acute exercise of varying intensity. We examined the hypothesis that exercise-intensity alters the FMD response in healthy elderly adults, and would be modulated by VO2peak Forty-seven elderly men were stratified into lower- (VO2peak = 24.3±2...
February 16, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28062506/wnt-signaling-pathway-inhibitor-sclerostin-inhibits-angiotensin-ii-induced-aortic-aneurysm-and-atherosclerosis
#12
Smriti Murali Krishna, Sai-Wang Seto, Roby J Jose, Jiaze Li, Susan K Morton, Erik Biros, Yutang Wang, Vianne Nsengiyumva, Jan H N Lindeman, Gabriela G Loots, Catherine M Rush, Jeffrey M Craig, Jonathan Golledge
OBJECTIVE: Sclerostin (SOST) has been identified as an important regulator of bone formation; however, it has not been previously implicated in arterial disease. The aim of this study was to assess the role of SOST in aortic aneurysm (AA) and atherosclerosis using human samples, a mouse model, and in vitro investigations. APPROACH AND RESULTS: SOST protein was downregulated in human and mouse AA samples compared with controls. Transgenic introduction of human SOST in apolipoprotein E-deficient (ApoE(-/-)) mice (SOST(Tg) ...
March 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28049491/fenofibrate-in-the-management-of-abdominal-aortic-aneurysm-fame-study-protocol-for-a-randomised-controlled-trial
#13
Sophie E Rowbotham, Doug Cavaye, Rene Jaeggi, Jason S Jenkins, Corey S Moran, Joseph V Moxon, Jenna L Pinchbeck, Frank Quigley, Christopher M Reid, Jonathan Golledge
BACKGROUND: Abdominal aortic aneurysm (AAA) is a slowly progressive destructive process of the main abdominal artery. Experimental studies indicate that fibrates exert beneficial effects on AAAs by mechanisms involving both serum lipid modification and favourable changes to the AAA wall. METHODS/DESIGN: Fenofibrate in the management of AbdoMinal aortic anEurysm (FAME) is a multicentre, randomised, double-blind, placebo-controlled clinical trial to assess the effect of orally administered therapy with fenofibrate on key pathological markers of AAA in patients undergoing open AAA repair...
January 4, 2017: Trials
https://www.readbyqxmd.com/read/27899403/meta-analysis-of-genome-wide-association-studies-for-abdominal-aortic-aneurysm-identifies-four-new-disease-specific-risk-loci
#14
Gregory T Jones, Gerard Tromp, Helena Kuivaniemi, Solveig Gretarsdottir, Annette F Baas, Betti Giusti, Ewa Strauss, Femke N G Van't Hof, Thomas R Webb, Robert Erdman, Marylyn D Ritchie, James R Elmore, Anurag Verma, Sarah Pendergrass, Iftikhar J Kullo, Zi Ye, Peggy L Peissig, Omri Gottesman, Shefali S Verma, Jennifer Malinowski, Laura J Rasmussen-Torvik, Kenneth M Borthwick, Diane T Smelser, David R Crosslin, Mariza de Andrade, Evan J Ryer, Catherine A McCarty, Erwin P Böttinger, Jennifer A Pacheco, Dana C Crawford, David S Carrell, Glenn S Gerhard, David P Franklin, David J Carey, Victoria L Phillips, Michael J A Williams, Wenhua Wei, Ross Blair, Andrew A Hill, Thodor M Vasudevan, David R Lewis, Ian A Thomson, Jo Krysa, Geraldine B Hill, Justin Roake, Tony R Merriman, Grzegorz Oszkinis, Silvia Galora, Claudia Saracini, Rosanna Abbate, Raffaele Pulli, Carlo Pratesi, Athanasios Saratzis, Ana R Verissimo, Suzannah Bumpstead, Stephen A Badger, Rachel E Clough, Gillian Cockerill, Hany Hafez, D Julian A Scott, T Simon Futers, Simon P R Romaine, Katherine Bridge, Kathryn J Griffin, Marc A Bailey, Alberto Smith, Matthew M Thompson, Frank M van Bockxmeer, Stefan E Matthiasson, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Jan D Blankensteijn, Joep A W Teijink, Cisca Wijmenga, Jacqueline de Graaf, Lambertus A Kiemeney, Jes S Lindholt, Anne Hughes, Declan T Bradley, Kathleen Stirrups, Jonathan Golledge, Paul E Norman, Janet T Powell, Steve E Humphries, Stephen E Hamby, Alison H Goodall, Christopher P Nelson, Natzi Sakalihasan, Audrey Courtois, Robert E Ferrell, Per Eriksson, Lasse Folkersen, Anders Franco-Cereceda, John D Eicher, Andrew D Johnson, Christer Betsholtz, Arno Ruusalepp, Oscar Franzén, Eric E Schadt, Johan L M Björkegren, Leonard Lipovich, Anne M Drolet, Eric L Verhoeven, Clark J Zeebregts, Robert H Geelkerken, Marc R van Sambeek, Steven M van Sterkenburg, Jean-Paul de Vries, Kari Stefansson, John R Thompson, Paul I W de Bakker, Panos Deloukas, Robert D Sayers, Seamus C Harrison, Andre M van Rij, Nilesh J Samani, Matthew J Bown
RATIONALE: Abdominal aortic aneurysm (AAA) is a complex disease with both genetic and environmental risk factors. Together, 6 previously identified risk loci only explain a small proportion of the heritability of AAA. OBJECTIVE: To identify additional AAA risk loci using data from all available genome-wide association studies. METHODS AND RESULTS: Through a meta-analysis of 6 genome-wide association study data sets and a validation study totaling 10 204 cases and 107 766 controls, we identified 4 new AAA risk loci: 1q32...
January 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/27829449/efficacy-of-brief-behavioral-counselling-by-allied-health-professionals-to-promote-physical-activity-in-people-with-peripheral-arterial-disease-bipp-study-protocol-for-a-multi-center-randomized-controlled-trial
#15
Nicola W Burton, Zanfina Ademi, Stuart Best, Maria A Fiatarone Singh, Jason S Jenkins, Kenny D Lawson, Anthony S Leicht, Yorgi Mavros, Yian Noble, Paul Norman, Richard Norman, Belinda J Parmenter, Jenna Pinchbeck, Christopher M Reid, Sophie E Rowbotham, Lisan Yip, Jonathan Golledge
BACKGROUND: Physical activity is recommended for people with peripheral arterial disease (PAD), and can improve walking capacity and quality of life; and reduce pain, requirement for surgery and cardiovascular events. This trial will assess the efficacy of a brief behavioral counselling intervention delivered by allied health professionals to improve physical activity in people with PAD. METHODS: This is a multi-center randomised controlled trial in four cities across Australia...
November 9, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27809335/higher-thyrotropin-concentration-is-associated-with-increased-incidence-of-colorectal-cancer-in-older-men
#16
Yi X Chan, Helman Alfonso, Stephen Anthony Paul Chubb, Peter Gerard Fegan, Graeme J Hankey, Jonathan Golledge, Leon Flicker, Bu B Yeap
CONTEXT: Thyroid hormones regulate cellular survival and metabolism; however, their association with cancer incidence and death has not been well explored. OBJECTIVES: Our aim was to examine the relationship between thyrotropin (TSH) and free thyroxine (FT4) with cancer incidence (all cancers, prostate, colorectal and lung cancer). Associations with cancer-related deaths were also explored. DESIGN AND SETTING: A prospective cohort study involving community-dwelling men aged 70-89 years...
November 3, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27776985/depression-among-nonfrail-old-men-is-associated-with-reduced-physical-function-and-functional-capacity-after-9%C3%A2-years-follow-up-the-health-in-men-cohort-study
#17
Osvaldo P Almeida, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Keith D Hill, Leon Flicker
BACKGROUND: Older adults with depression have increased risk of frailty and death. OBJECTIVE: To determine if history of depression hinders future physical and functional capacity. DESIGN, SETTING, AND PARTICIPANTS: Prospective longitudinal cohort study of 1148 men aged 70-87 years who were living in the Perth metropolitan community in 2001-2004 and completed a follow-up assessment of physical and functional capacity in 2011-2012. MAIN OUTCOME AND MEASURES: Outcomes were collected in 2011-2012 and included 4 measures of physical function (timed up-and-go, timed sit-to-stand, functional reach, and step test) and the assessment of basic (activities of daily living) and instrumental activities of daily living...
January 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/27767064/angiopoietin-2-attenuates-angiotensin-ii-induced-aortic-aneurysm-and-atherosclerosis-in-apolipoprotein-e-deficient-mice
#18
Hongyou Yu, Corey S Moran, Alexandra F Trollope, Lynn Woodward, Robert Kinobe, Catherine M Rush, Jonathan Golledge
Angiogenesis and inflammation are implicated in aortic aneurysm and atherosclerosis and regulated by angiopoietin-2 (Angpt2). The effect of Angpt2 administration on experimental aortic aneurysm and atherosclerosis was examined. Six-month-old male apolipoprotein E deficient (ApoE(-/-)) mice were infused with angiotensin II (AngII) and administered subcutaneous human Fc-protein (control) or recombinant Angpt2 (rAngpt2) over 14 days. Administration of rAngpt2 significantly inhibited AngII-induced aortic dilatation and rupture of the suprarenal aorta (SRA), and development of atherosclerosis within the aortic arch...
October 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27730569/combined-lower-limb-revascularisation-and-supervised-exercise-training-for-patients-with-peripheral-arterial-disease-a-systematic-review-of-randomised-controlled-trials
#19
REVIEW
Annelise L Menêses, Raphael M Ritti-Dias, Belinda Parmenter, Jonathan Golledge, Christopher D Askew
BACKGROUND: Both revascularisation and supervised exercise training improve functional outcomes and quality of life in patients with peripheral arterial disease (PAD). However, the value of combined therapy, where exercise therapy is delivered as an adjunct to revascularisation, is less clear. OBJECTIVE: To systematically review evidence on the efficacy of lower limb revascularisation combined with supervised exercise training in patients with PAD. METHODS: Parallel-group randomised controlled trials indexed in the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Embase, Scopus, CINAHL, SPORTDiscus and Web of Science were searched (up to Jan 2016)...
October 12, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27689715/affective-disorders-psychosis-and-dementia-in-a-community-sample-of-older-men-with-and-without-parkinson-s-disease
#20
Osvaldo P Almeida, Kieran McCaul, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Leon Flicker
BACKGROUND: Dementia and affective and psychotic symptoms are commonly associated with Parkinson's disease, but information about their prevalence and incidence in community representative samples remains sparse. METHODS: We recruited a community-representative sample 38173 older men aged 65-85 years in 1996 and used data linkage to ascertain the presence of PD, affective disorders, psychotic disorders and dementia. Diagnoses followed the International Classification of Disease coding system...
2016: PloS One
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