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Jonathan golledge

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https://www.readbyqxmd.com/read/27899403/meta-analysis-of-genome-wide-association-studies-for-abdominal-aortic-aneurysm-identifies-four-new-disease-specific-risk-loci
#1
Gregory T Jones, Gerard Tromp, Helena Kuivaniemi, Solveig Gretarsdottir, Annette F Baas, Betti Giusti, Ewa Strauss, Femke N van 't Hof, Thomas 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 Borthwick, Diane T Smelser, David R Crosslin, Mariza de Andrade, Evan J Ryer, Catherine A McCarty, Erwin P Bottinger, Jennifer A Pacheco, Dana C Crawford, David S Carrell, Glenn S Gerhard, David P Franklin, David J Carey, Victoria L Phillips, Michael J Williams, Wenhua Wei, Ross Blair, Andrew A Hill, Thodur 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, Anna Verissimo, Suzannah J Bumpstead, Stephen A Badger, Rachel E Clough, Gillian W Cockerill, Hany Hafez, D J Scott, T S Futers, Simon P Romaine, Katherine Bridge, Kathryn J Griffin, Marc A Bailey, Alberto Smith, Matt M Thompson, Frank van Bockxmeer, Stefan E Matthiasson, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Jan D Blankensteijn, Joep A Teijink, Cisca Wijmenga, Jacqueline de Graaf, Lambertus A Kiemeney, Jes S Lindholt, Anne E 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 Schadt, Johan L Björkegren, Leonard Lipovich, Anne M Drolet, Eric Verhoeven, Clark J Zeebregts, Robert H Geelkerken, Marc R van Sambeek, Steven M van Sterkenburg, Jean-Paul P de Vries, Kari Stefansson, John R Thompson, Paul I de Bakker, Panos Deloukas, Robert D Sayers, Seamus 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 (GWAS). METHODS AND RESULTS: Through a meta-analysis of 6 GWAS datasets and a validation study totalling 10,204 cases and 107,766 controls we identified 4 new AAA risk loci: 1q32...
November 29, 2016: 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
#2
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
#3
Yi X Chan, Helman Alfonso, S A Paul Chubb, P Gerry 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
#4
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...
October 21, 2016: 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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/27663430/suicide-in-older-men-the-health-in-men-cohort-study-hims
#8
Osvaldo P Almeida, Kieran McCaul, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Leon Flicker
Suicide rates are high in later life, particularly among older men. Mood disorders are known risk factors, but the risk of suicide associated with poor physical health remains unclear. We completed a cohort study of a community representative sample of 38,170 men aged 65-85 in 1996 who were followed for up to 16years. Data on suicide attempts and completion were obtained from the Western Australia Data Linkage System, as was information about medical and mental health diagnoses. 240 (0.6%) participants had a recorded history of past suicide attempt, most commonly by poisoning (85%)...
December 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27641464/challenges-and-opportunities-in-limiting-abdominal-aortic-aneurysm-growth
#9
Jonathan Golledge, Paul E Norman, Michael P Murphy, Ronald L Dalman
OBJECTIVE: This review describes ongoing efforts to develop a medical therapy to limit abdominal aortic aneurysm (AAA) growth. METHODS: Data from animal model studies, human investigations, and clinical trials are described. RESULTS: Studies in rodent models and human samples have suggested a number of potential targets for slowing or halting AAA growth. A number of clinical trials are now examining the value of medications targeting some of the pathways identified...
September 15, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27629263/plantar-pressures-are-higher-in-cases-with-diabetic-foot-ulcers-compared-to-controls-despite-a-longer-stance-phase-duration
#10
Malindu E Fernando, Robert G Crowther, Peter A Lazzarini, Kunwarjit S Sangla, Scott Wearing, Petra Buttner, Jonathan Golledge
BACKGROUND: Current international guidelines advocate achieving at least a 30 % reduction in maximum plantar pressure to reduce the risk of foot ulcers in people with diabetes. However, whether plantar pressures differ in cases with foot ulcers to controls without ulcers is not clear. The aim of this study was to assess if plantar pressures were higher in patients with active plantar diabetic foot ulcers (cases) compared to patients with diabetes without a foot ulcer history (diabetes controls) and people without diabetes or a foot ulcer history (healthy controls)...
September 15, 2016: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/27529213/the-potential-role-of-kallistatin-in-the-development-of-abdominal-aortic-aneurysm
#11
REVIEW
Jiaze Li, Smriti Murali Krishna, Jonathan Golledge
Abdominal aortic aneurysm (AAA) is a vascular condition that causes permanent dilation of the abdominal aorta, which can lead to death due to aortic rupture. The only treatment for AAA is surgical repair, and there is no current drug treatment for AAA. Aortic inflammation, vascular smooth muscle cell apoptosis, angiogenesis, oxidative stress and vascular remodeling are implicated in AAA pathogenesis. Kallistatin is a serine proteinase inhibitor, which has been shown to have a variety of functions, potentially relevant in AAA pathogenesis...
2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27482038/risk-of-dementia-and-death-in-community-dwelling-older-men-with-bipolar-disorder
#12
Osvaldo P Almeida, Kieran McCaul, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Leon Flicker
BACKGROUND: Bipolar disorder has been associated with cognitive decline, but confirmatory evidence from a community-derived sample of older people is lacking. AIMS: To investigate the 13-year risk of dementia and death in older adults with bipolar disorder. METHOD: Cohort study of 37 768 men aged 65-85 years. Dementia (primary) and death (secondary), as recorded by electronic record linkage, were the outcomes of interest. RESULTS: Bipolar disorder was associated with increased adjusted hazard ratio (HR) of dementia (HR = 2...
August 2016: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/27476892/a-small-animal-model-for-early-cerebral-aneurysm-pathology
#13
James A Lee, Laurence A G Marshman, Corey S Moran, Leslie Kuma, Eric P Guazzo, David S Anderson, Jonathan Golledge
Prior studies, using systemic hypertension and elastase infusion, have induced cerebral aneurysm (CA) formation in mice. However, the CAs induced were rapidly formed, relatively large, and often ruptured. These features are not completely representative of human CAs. We set out to develop a mouse model representative of the early pathological features of human CA. Twenty male C57/BL6 mice were placed in a stereotactic frame. Low dose elastase solution (2μl/min) was manually injected into the right basal cistern...
July 28, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27458819/a-systematic-review-and-meta-analysis-of-circulating-biomarkers-associated-with-failure-of-arteriovenous-fistulae-for-haemodialysis
#14
Susan K Morton, Alexander J Rodríguez, Dylan R Morris, Abhishta P Bhandari, Joseph V Moxon, Jonathan Golledge
BACKGROUND: Arteriovenous fistula (AVF) failure is a significant cause of morbidity and expense in patients on maintenance haemodialysis (HD). Circulating biomarkers could be valuable in detecting patients at risk of AVF failure and may identify targets to improve AVF outcome. Currently there is little consensus on the relationship between circulating biomarkers and AVF failure. The aim of this systematic review was to identify circulating biomarkers associated with AVF failure. METHODS: Studies evaluating the association between circulating biomarkers and the presence or risk of AVF failure were systematically identified from the MEDLINE, EMBASE and Cochrane Library databases...
2016: PloS One
https://www.readbyqxmd.com/read/27456450/guideline-for-the-diagnosis-and-management-of-hypertension-in-adults-2016
#15
Genevieve M Gabb, Arduino A Mangoni, Craig S Anderson, Diane Cowley, John S Dowden, Jonathan Golledge, Graeme J Hankey, Faline S Howes, Les Leckie, Vlado Perkovic, Markus Schlaich, Nicholas A Zwar, Tanya L Medley, Leonard Arnolda
The National Heart Foundation of Australia has updated the Guide to management of hypertension 2008: assessing and managing raised blood pressure in adults (updated December 2010). Main recommendations For patients at low absolute cardiovascular disease risk with persistent blood pressure (BP) ≥ 160/100 mmHg, start antihypertensive therapy. The decision to treat at lower BP levels should consider absolute cardiovascular disease risk and/or evidence of end-organ damage, together with accurate BP assessment...
July 18, 2016: Medical Journal of Australia
https://www.readbyqxmd.com/read/27440910/reference-ranges-for-thyroid-stimulating-hormone-and-free-thyroxine-in-older-men-results-from-the-health-in-men-study
#16
Bu B Yeap, Laurens Manning, S A Paul Chubb, Graeme J Hankey, Jonathan Golledge, Osvaldo P Almeida, Leon Flicker
BACKGROUND: In older adults, thyroid-stimulating hormone (TSH) concentrations are raised and higher free thyroxine (FT4) is associated with poorer health outcomes. As use of nonage-appropriate reference ranges could lead to suboptimal management, we aimed to define reference intervals for TSH and FT4 in older men. METHODS: We conducted the study on community-dwelling men aged 70-89 years. Baseline TSH and FT4 levels were assayed (Elecsys 2010, Roche Diagnostics)...
July 20, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/27389946/gait-parameters-of-people-with-diabetes-related-neuropathic-plantar-foot-ulcers
#17
Malindu Eranga Fernando, Robert G Crowther, Peter A Lazzarini, Kunwarjit S Sangla, Petra Buttner, Jonathan Golledge
BACKGROUND: Foot ulceration associated with diabetic peripheral neuropathy is a global concern. Biomechanical investigation allows the identification of gait abnormalities that may adversely affect ulcer healing. The objective of this case-control study was to compare the gait parameters of cases with diabetes-related foot ulcers to controls. METHODS: Three-dimensional movement analyses were performed on 21 people with diabetes-related neuropathic plantar foot ulcers (cases), 69 people with diabetes without a foot ulcer history (diabetes controls) and 56 healthy controls...
August 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27235969/plasma-ferritin-concentrations-are-not-associated-with-abdominal-aortic-aneurysm-diagnosis-size-or-growth
#18
Joseph V Moxon, Rhondda E Jones, Paul E Norman, Paula Clancy, Leon Flicker, Osvaldo P Almeida, Graeme J Hankey, Bu B Yeap, Jonathan Golledge
BACKGROUND AND AIMS: Experimental studies using a rodent model have suggested that iron overload may contribute to abdominal aortic aneurysm (AAA) pathogenesis. METHODS: We assessed the association of total body iron, as measured by plasma ferritin, with AAA diagnosis, size and growth in 4024 community-dwelling older men screened for AAA, using logistic regression and linear mixed effects models. RESULTS: Plasma ferritin concentrations were similar in men who did (n = 293) and did not (n = 3731) have an AAA (median [inter-quartile range] concentrations 115...
August 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27135882/matricellular-protein-ccn3-mitigates-abdominal-aortic-aneurysm
#19
Chao Zhang, Dustin van der Voort, Hong Shi, Rongli Zhang, Yulan Qing, Shuichi Hiraoka, Minoru Takemoto, Koutaro Yokote, Joseph V Moxon, Paul Norman, Laure Rittié, Helena Kuivaniemi, G Brandon Atkins, Stanton L Gerson, Guo-Ping Shi, Jonathan Golledge, Nianguo Dong, Bernard Perbal, Domenick A Prosdocimo, Zhiyong Lin
No abstract text is available yet for this article.
May 2, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/26974158/matricellular-protein-ccn3-mitigates-abdominal-aortic-aneurysm
#20
Chao Zhang, Dustin van der Voort, Hong Shi, Rongli Zhang, Yulan Qing, Shuichi Hiraoka, Minoru Takemoto, Koutaro Yokote, Joseph V Moxon, Paul Norman, Laure Rittié, Helena Kuivaniemi, G Brandon Atkins, Stanton L Gerson, Guo-Ping Shi, Jonathan Golledge, Nianguo Dong, Bernard Perbal, Domenick A Prosdocimo, Zhiyong Lin
Abdominal aortic aneurysm (AAA) is a major cause of morbidity and mortality; however, the mechanisms that are involved in disease initiation and progression are incompletely understood. Extracellular matrix proteins play an integral role in modulating vascular homeostasis in health and disease. Here, we determined that the expression of the matricellular protein CCN3 is strongly reduced in rodent AAA models, including angiotensin II-induced AAA and elastase perfusion-stimulated AAA. CCN3 levels were also reduced in human AAA biopsies compared with those in controls...
April 1, 2016: Journal of Clinical Investigation
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