Research Topics
Species | R McPhersonSummaryAffiliation: University of Ottawa Heart Institute Country: Canada Publications
| Collaborators
|
Detail Information
Publications
Genetic and phenotypic architecture of metabolic syndrome-associated components in dyslipidemic and normolipidemic subjects: the GEMS StudyHeide Stirnadel
World Wide Epidemiology, GlaxoSmithKline, Harlow, UK
Atherosclerosis 197:868-76. 2008....
Decreased mitochondrial proton leak and reduced expression of uncoupling protein 3 in skeletal muscle of obese diet-resistant womenMary Ellen Harper
Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Faculty of Medicine, Ottawa, Ontarion, Canada
Diabetes 51:2459-66. 2002..Thus, proton leak and the expression of UCP3 correlate with weight loss success and may be candidates for pharmacological regulation of fat oxidation in obese diet-resistant subjects...
Molecular regulation of SREBP function: the Insig-SCAP connection and isoform-specific modulation of lipid synthesisRuth McPherson
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, ON, Canada
Biochem Cell Biol 82:201-11. 2004....
Identifying genes for coronary artery disease: An idea whose time has comeRobert Roberts
University of Ottawa Heart Institute, Ontario
Can J Cardiol 23:7A-15A. 2007..To detect a minor allele frequency of 5% or greater with an odds ratio for risk of 1.3 or greater and 90% power, an estimated 14,000 (9000 affected and 5000 control) subjects are required...
From genome-wide association studies to functional genomics: new insights into cardiovascular diseaseRuth McPherson
Division of Cardiology, University of Ottawa Heart Institute, 40 Ruskin St H4203, Ottawa, Canada
Can J Cardiol 29:23-9. 2013....
Inflammation and coronary artery disease: insights from genetic studiesRuth McPherson
University of Ottawa Heart Institute, Ottawa, Ontario, Canada
Can J Cardiol 28:662-6. 2012..Candidate gene studies also support a causative role of inflammation pathways in atherosclerosis. Of note, a common loss of function coding variant in the IL-6 receptor gene (IL6R) is associated with a reduction in CAD risk...
Gene expression profiling in whole blood identifies distinct biological pathways associated with obesitySujoy Ghosh
Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, USA
BMC Med Genomics 3:56. 2010..Obesity is reaching epidemic proportions and represents a significant risk factor for cardiovascular disease, diabetes, and cancer...
The INSIG2 rs7566605 genetic variant does not play a major role in obesity in a sample of 24,722 individuals from four cohortsJan Bressler
Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
BMC Med Genet 10:56. 2009..The combined study sample is comprised of 24,722 white, African-American, and Mexican-American participants...
A common allele on chromosome 9 associated with coronary heart diseaseRuth McPherson
Division of Cardiology, University of Ottawa Heart Institute, Ottawa K1Y4W7, Canada
Science 316:1488-91. 2007..Homozygotes for the risk allele make up 20 to 25% of Caucasians and have a approximately 30 to 40% increased risk of CHD...
Canadian Cardiovascular Society position statement--recommendations for the diagnosis and treatment of dyslipidemia and prevention of cardiovascular diseaseRuth McPherson
University of Ottawa Heart Institute, Ottawa, Canada
Can J Cardiol 22:913-27. 2006..0) and recommendations regarding additional investigations of potential use in the further evaluation of coronary artery disease risk in subjects in the moderate-risk category...
Genetic contributors to obesityRuth McPherson
University of Ottawa Heart Institute, Ontario
Can J Cardiol 23:23A-27A. 2007..Rare variants in the coding sequences of major candidate genes account for an obese phenotype in 5% to 10% of individuals...
Cerivastatin versus branded pravastatin in the treatment of primary hypercholesterolemia in primary care practice in Canada: a one-year, open-label, randomized, comparative study of efficacy, safety, and cost-effectivenessR McPherson
University of Ottawa Heart Institute, Ontario, Canada
Clin Ther 23:1492-507. 2001..Potential cost differences between statins are driven primarily by drug costs, differential lowering effects on low-density lipoprotein cholesterol (LDL-C) levels, and adverse drug interactions and reactions...
Is hormone replacement therapy cardioprotective? Decision-making after the heart and estrogen/progestin replacement studyR McPherson
Ottawa Heart Institute, Ottawa, Canada
Can J Cardiol 16:14A-9A. 2000..Until the results of other randomized controlled studies are complete, advice regarding HRT should be based on anticipated benefits on CAD risk factors versus the overall risk of both venous and arterial thrombosis...
Efficacy of atorvastatin in achieving National Cholesterol Education Program low-density lipoprotein targets in women with severe dyslipidemia and cardiovascular disease or risk factors for cardiovascular disease: The Women's Atorvastatin Trial on CholestR McPherson
University of Ottawa Heart Institute, Ottawa, Ontario, Canada
Am Heart J 141:949-56. 2001..The ability to achieve established treatment goals for low-density lipoprotein cholesterol (LDL-C) in women with clearly defined risk factors has not been examined in detail...
Controversies in primary prevention among hyperlipidemic patientsR McPherson
University of Ottawa Heart Institute, Ottawa, Canada
Can J Cardiol 15:16B-19B. 1999..To assist in both primary and secondary prevention strategies, an outline of guidelines developed by a Health Canada working group for the management of hyperlipidemia have recently been published...
Coronary artery disease and women: applying the guidelines for risk factor managementR McPherson
Ottawa Heart Institute, Ottawa, Canada
Can J Cardiol 16:5A-10A. 2000..Physician risk factor assessment and adherence to current guideline recommendations are essential in preventing the development or progression of CAD in women...
Randomized trial of a portable, self-administered decision aid for postmenopausal women considering long-term preventive hormone therapyA M O'Connor
University of Ottawa School of Nursing, Ottawa Civic Hospital Loeb Research Institute, Ontario, Canada
Med Decis Making 18:295-303. 1998..Levels of general knowledge about the main benefits and risks were comparable for the two interventions. It is concluded that tailored decision aids prepare women for decision making better than do general pamphlets...
Naturally occurring R225W mutation of the gene encoding AMP-activated protein kinase (AMPK)gamma(3) results in increased oxidative capacity and glucose uptake in human primary myotubesS A Crawford
Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
Diabetologia 53:1986-97. 2010....
Increased susceptibility to oxidative damage in post-diabetic human myotubesS R Costford
Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
Diabetologia 52:2405-15. 2009..We hypothesised that chronic exposure to high glucose and insulin would re-elicit impaired metabolism in primary myotubes from patients with a history of type 2 diabetes...
Cholesteryl ester transfer protein directly mediates selective uptake of high density lipoprotein cholesteryl esters by the liverAndre Gauthier
Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Canada
Arterioscler Thromb Vasc Biol 25:2177-84. 2005....
Comparative effects of simvastatin and cholestyramine on plasma lipoproteins and CETP in humansR McPherson
University of Ottawa Heart Institute, Ottawa, Ontario, Canada
Can J Clin Pharmacol 6:85-90. 1999..This study demonstrates that, compared with cholestyramine, simvastatin results in more favourable improvements in the plasma lipoprotein profile and also lowers plasma levels of CETP...
Plasma kinetics of cholesteryl ester transfer protein in the rabbit. Effects of dietary cholesterolR McPherson
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Canada
Arterioscler Thromb Vasc Biol 17:203-10. 1997..The effect of dietary cholesterol on plasma CETP mass can be explained largely by the effects on CETP synthesis, consistent with the observed effects of cholesterol on tissue mRNA levels...
Severe hypoalphalipoproteinemia in mice expressing human hepatic lipase deficient in binding to heparan sulfate proteoglycanRobert J Brown
Lipoprotein and Atherosclerosis Research Group, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
J Biol Chem 279:42403-9. 2004..These results suggest that expression of HSPG binding-deficient hHL has a profound HDL-lowering effect...
The transcription factor GATA-2 does not associate with angiographic coronary artery disease in the Ottawa Heart Genomics and Cleveland Clinic GeneBank StudiesSonny Dandona
The John and Jennifer Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, Ottawa, Canada
Hum Genet 127:101-5. 2010..Neither of the genotyped SNPs associates with CAD in the OHGS1 or CC/OHGS2 populations. Our data suggest that GATA2 does not contribute to the development of angiographic CAD among sporadic cases...
Role of cholesteryl ester transfer protein in selective uptake of high density lipoprotein cholesteryl esters by adipocytesGerard Vassiliou
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4E9, Canada
J Lipid Res 45:1683-93. 2004..In contrast, CETP-specific PL uptake did not attain saturation at 5 microg/ml HDL and was approximately 6-fold greater than the uptake of CE. We propose two possible mechanisms to account for the role of CETP in selective uptake...
A novel efflux-recapture process underlies the mechanism of high-density lipoprotein cholesteryl ester-selective uptake mediated by the low-density lipoprotein receptor-related proteinGerard Vassiliou
Lipoprotein and Atherosclerosis Group, Lab H453, University of Ottawa Heart Institute, Ottawa ON K1Y 4W7, Canada
Arterioscler Thromb Vasc Biol 24:1669-75. 2004..To determine the mechanism of low-density lipoprotein (LDL) receptor-related protein (LRP)-mediated selective uptake of high-density lipoprotein (HDL)-derived cholesteryl esters (CE)...
Role of Lp A-I and Lp A-I/A-II in cholesteryl ester transfer protein-mediated neutral lipid transfer. Studies in normal subjects and in hypertriglyceridemic patients before and after fenofibrate therapyR McPherson
University of Ottawa Heart Institute, Canada
Arterioscler Thromb Vasc Biol 16:1340-6. 1996..Lp A-I/A-II is an efficient donor for CE transfer to TG-rich lipoproteins, and its low affinity for CETP may in fact facilitate neutral lipid transfer either by a shuttle mechanism or by formation of a ternary complex...
Secretory vesicular transport from the Golgi is altered during ATP-binding cassette protein A1 (ABCA1)-mediated cholesterol effluxXiaohui Zha
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ontario K1Y 4W7, Canada
J Biol Chem 278:10002-5. 2003..ABCA1 may influence cholesterol efflux in part by enhancing vesicular trafficking from the Golgi to the plasma membrane...
Adipocyte low density lipoprotein receptor-related protein gene expression and function is regulated by peroxisome proliferator-activated receptor gammaAndre Gauthier
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ottawa K1Y 4W7, Canada
J Biol Chem 278:11945-53. 2003..These data demonstrate that fatty acids and rosiglitazone directly stimulate transcription of the LRP gene through activation of PPARgamma and increase functional LRP expression...
Functional analysis of the chromosome 9p21.3 coronary artery disease risk locusOlga Jarinova
University of Ottawa Heart Institute, Ottawa, Canada
Arterioscler Thromb Vasc Biol 29:1671-7. 2009..We have investigated the functional significance of conserved sequences within the 9p21.3 risk locus for coronary artery disease (CAD) and determined the relationship of 9p21.3 to expression of ANRIL and to whole genome gene expression...
The low density lipoprotein receptor-related protein contributes to selective uptake of high density lipoprotein cholesteryl esters by SW872 liposarcoma cells and primary human adipocytesG Vassiliou
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4E9, Canada
J Biol Chem 276:48823-30. 2001..We discuss the possible mechanisms by which the endocytic receptor, LRP, can mediate selective uptake...
UCP3 and its putative function: consistencies and controversiesM E Harper
Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON, Canada K1H 8M5
Biochem Soc Trans 29:768-73. 2001..Overall, findings support a role for Ucp3 in fatty acid metabolism that may have implications for obesity and/or Type II diabetes...
Endocytosis is enhanced in Tangier fibroblasts: possible role of ATP-binding cassette protein A1 in endosomal vesicular transportX Zha
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada
J Biol Chem 276:39476-83. 2001..We speculate that this is related to the PS translocase function of ABCA1. A loss of functional ABCA1, as in the case of Tangier cells, enhances membrane inward bending and facilitates endocytosis...
Relationship of adipose tissue cholesteryl ester transfer protein (CETP) mRNA to plasma concentrations of CETP in manT Radeau
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Canada
Atherosclerosis 139:369-76. 1998..The decrease in plasma concentrations of CETP with age may be explained in part by changes in adipose tissue CETP gene expression...
A decision aid for women considering hormone therapy after menopause: decision support framework and evaluationA M O'Connor
University of Ottawa, School of Nursing, Ontario, Canada
Patient Educ Couns 33:267-79. 1998..Most participants found the decision aid comprehensible, acceptable in length and pace, and balanced. Decision aids are useful in preparing women for decision making about this complex, personal issue...
Distinct skeletal muscle fiber characteristics and gene expression in diet-sensitive versus diet-resistant obesityMartin F Gerrits
Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON, Canada
J Lipid Res 51:2394-404. 2010..lean women. Altogether, our findings demonstrate differences in muscle gene expression and fiber composition related to clinical weight loss success...
Predominance of a proinflammatory phenotype in monocyte-derived macrophages from subjects with low plasma HDL-cholesterolLea Sarov-Blat
University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario, K1Y 4W7, Canada
Arterioscler Thromb Vasc Biol 27:1115-22. 2007..Reduced plasma concentrations of high-density lipoprotein-cholesterol (HDL-C) are a significant risk factor for cardiovascular disease. Mechanisms that regulate HDL-C concentrations represent an important area of investigation...
Genetic etiology of isolated low HDL syndrome: incidence and heterogeneity of efflux defectsRobert S Kiss
University of Ottawa Heart Institute, 40 Ruskin St, Ottawa, Ontario, K1Y 4W7, Canada
Arterioscler Thromb Vasc Biol 27:1139-45. 2007..We have used a multitiered approach to identify genetic and cellular contributors to high-density lipoprotein (HDL) deficiency in 124 human subjects...
Gene dosage of the common variant 9p21 predicts severity of coronary artery diseaseSonny Dandona
John and Jennifer Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario, Canada
J Am Coll Cardiol 56:479-86. 2010..The purpose of this study was to test the hypothesis that 9p21 gene dosage determines the severity of coronary artery disease (CAD)...
Hepatic SR-BI-mediated cholesteryl ester selective uptake occurs with unaltered efficiency in the absence of cellular energyChris J Harder
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada K1Y 4W7
J Lipid Res 47:492-503. 2006....
Disruption at the PTCHD1 Locus on Xp22.11 in Autism spectrum disorder and intellectual disabilityAbdul Noor
Neurogenetics Section, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
Sci Transl Med 2:49ra68. 2010..Thus, our systematic screen of PTCHD1 and its 5' flanking regions suggests that this locus is involved in ~1% of individuals with ASD and intellectual disability...
Peroxisome proliferator-activated receptor gamma 2 and acyl-CoA synthetase 5 polymorphisms influence diet responseKristi B Adamo
Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ontario, Canada
Obesity (Silver Spring) 15:1068-75. 2007..Skeletal muscle ACSL5 mRNA expression was significantly lower in carriers of the wildtype compared with the variant rs2419621 allele (p = 0.03). Our results suggest a link between PPARgamma2 and ACSL5 genotype and diet responsiveness...
SR-BI undergoes cholesterol-stimulated transcytosis to the bile canaliculus in polarized WIF-B cellsChristopher J Harder
Lipoprotein and Atherosclerosis Group, University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
J Biol Chem 282:1445-55. 2007..Taken together, these data demonstrate that hepatic SR-BI transcytosis is regulated by cholesterol and suggest that SR-BI has a stationary function on the bile canaliculus...
Scavenger receptor class B type I localizes to a late endosomal compartmentMalika Ahras
Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Canada K1Y 4W7
J Lipid Res 49:1569-76. 2008..In addition to its role as a plasma membrane receptor, SR-BI may function in cholesterol trafficking from late endosomes/lysosomes...
Cholesteryl ester transfer protein (CETP) expression protects against diet induced atherosclerosis in SR-BI deficient miceChristopher Harder
Lipoprotein and Atherosclerosis Research Group, University of Ottawa Heart Institute, Ottawa, Canada
Arterioscler Thromb Vasc Biol 27:858-64. 2007..To determine whether expression of the human CETP transgene protects against diet-induced atherosclerosis in SR-BI deficient mice...
Early effects of statin therapy on endothelial function and microvascular reactivity in patients with coronary artery diseaseMichael C Ling
Division of Cardiology, Department of Medicine, Cardiac PET Centre, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
Am Heart J 149:1137. 2005..CONCLUSIONS: Short-term LDL reduction with simvastatin therapy improves peripheral endothelial function in patients with stable CAD, although an early effect on coronary vascular reactivity could not be demonstrated...
Peering through the darkened glass: success and disappointment in the management of cardiovascular riskRuth McPherson
University of Ottawa Heart Institute, Ottawa, Canada
Curr Opin Lipidol 17:615-8. 2006
Cathepsin D, a lysosomal protease, regulates ABCA1-mediated lipid effluxBassam Haidar
Lipoprotein and Atherosclerosis Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, K1Y 4W7, Canada
J Biol Chem 281:39971-81. 2006..These studies demonstrate a novel and potentially important role for CTSD in intracellular cholesterol trafficking and ABCA1-mediated efflux. Therefore, decreased CTSD expression may contribute to low plasma HDL-C levels...
Multiple rare alleles contribute to low plasma levels of HDL cholesterolJonathan C Cohen
Donald W Reynolds Cardiovascular Clinical Research Center and McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
Science 305:869-72. 2004..Thus, rare alleles with major phenotypic effects contribute significantly to low plasma HDL-C levels in the general population...
Lack of MEF2A mutations in coronary artery diseaseLi Weng
US Department of Energy, Joint Genome Institute, Walnut Creek, California, USA
J Clin Invest 115:1016-20. 2005..These studies support that MEF2A mutations are not a common cause of CAD in white people and argue strongly against a role for the MEF2A 21-bp deletion in autosomal dominant CAD...
Recommendations for the management of dyslipidemia and the prevention of cardiovascular disease: summary of the 2003 updateJacques Genest
Royal Victoria Hospital, McGill University, , Que
CMAJ 169:921-4. 2003
A PYY Q62P variant linked to human obesityNadav Ahituv
Genomics Division, One Cyclotron Road, MS 84 171, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Hum Mol Genet 15:387-91. 2006..Taken together, these results are the first to support that rare sequence variants within PYY can influence human susceptibility to obesity...
LDL-cholesterol concentrations: a genome-wide association studyManjinder S Sandhu
Department of Public Health and Primary Care, Strangeways Research Laboratory, University of Cambridge, Cambridge, UK
Lancet 371:483-91. 2008..We therefore did a genome-wide association study of LDL-cholesterol concentrations...
The metabolic syndrome and type 2 diabetes: role of the adipocyteRuth McPherson
Curr Opin Lipidol 14:549-53. 2003
Statin therapy in acute coronary syndromeVincent E Friedewald
University of Texas Health Sciences Center at Houston, Houston, Texas, USA
Am J Cardiol 99:213-21. 2007
Relation between atherogenic dyslipidemia and the Adult Treatment Program-III definition of metabolic syndrome (Genetic Epidemiology of Metabolic Syndrome Project)Diego F Wyszynski
Department of Medicine (Genetics Program, Boston University School of Medicine, Boston, MA, USA
Am J Cardiol 95:194-8. 2005..In subjects aged <35 years, atherogenic dyslipidemia frequently occurs in the absence of other metabolic syndrome risk factors...
The analysis by Manuel and colleagues creates controversy with headlines, not dataJacques Genest
Division of Cardiology, Royal Victoria Hospital, McGill University, , Que
CMAJ 172:1033-4; discussion 1037. 2005
Statins for primary prevention of coronary artery diseaseRuth McPherson
Lancet 369:1078; author reply 1079. 2007
Statin therapy and the management of acute coronary syndromesAnatoly Langer
Canadian Heart Research Centre and St Michael s Hospital, University of Toronto, Toronto, Canada
Can J Cardiol 19:921-7. 2003....
Multiple QTLs influencing triglyceride and HDL and total cholesterol levels identified in families with atherogenic dyslipidemiaYi Yu
Department of Medicine (Genetics Program, Boston University School of Medicine, Boston, MA, USA
J Lipid Res 46:2202-13. 2005..These data also indicate that a large proportion of the variance of TG levels in the Turkish population is explained by the interaction of multiple genetic loci...
Lack of support for the association between GAD2 polymorphisms and severe human obesityMichael M Swarbrick
Diabetes Center, University of California, San Francisco, California, USA
PLoS Biol 3:e315. 2005....
Medical sequencing at the extremes of human body massNadav Ahituv
Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Am J Hum Genet 80:779-91. 2007..Together, these data suggest that multiple rare alleles contribute to obesity in the population and provide a medical sequencing-based approach to detect them...
Statin therapy in Canadian patients with hypercholesterolemia: the Canadian Lipid Study -- Observational (CALIPSO)C Bourgault
McGill University, Montreal, Canada
Can J Cardiol 21:1187-93. 2005..Although statins are widely used to reduce low density lipoprotein cholesterol (LDL-C), there is little information about patient profiles, treatment patterns and goal achievement among statin-treated patients in Canada...
Clinical and public health assessment of benefits and risks of statins in primary prevention of coronary events: resolved and unresolved issuesYola Moride
Faculty of Pharmacy, Universite de Montreal, Montreal, Quebec
Can J Cardiol 24:293-300. 2008..However, the benefit-risk ratio would likely be optimized through interventions designed to increase persistence and adherence in a real-life setting...
Antibody phenotyping test for the human apolipoprotein E2 isoformRobert L Raffai
The Gladstone Institute of Cardiovascular Disease, Cardiovascular Research Institute, University of California, San Francisco, CA 94141 9100, USA
Clin Chem 49:1524-6. 2003
