166 results match your criteria: "and Keenan Research Centre[Affiliation]"

Cancer risks of anti-hyperglycemic drugs for type 2 diabetes treatment - a clinical appraisal.

J Diabetes Complications

September 2017

Division of Endocrinology & Metabolism, Li Ka Shing Knowledge Institute and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, 61 Queen St. East #6121, Toronto, ON, M5C 2T2, Canada. Electronic address:

Aim: A clinical appraisal of existing scientific literature sought to assess the need for long-term prospective epidemiological studies to investigate an increased cancer risk of anti-hyperglycemic medication in type 2 diabetes.

Method: A focus statement was formulated as: "With a higher risk of cancers in patients with type 2 diabetes, all anti-hyperglycemic drugs should undergo long-term, prospective epidemiological studies for cancer risks." Field surveys were sent to practicing physicians and endocrinologists to identify the currently prevalent level of acceptance of this statement.

View Article and Find Full Text PDF

The authors reply.

Crit Care Med

July 2017

Departments of Anesthesia and Critical Care Medicine and Keenan Research Centre for Biomedical Science of St Michael's Hospital, St. Michael's Hospital, Toronto, ON, Canada, and Department of Anesthesia and Interdepartmental Division of Critical Care, University of Toronto, Toronto, ON, Canada;Keenan Research Centre for Biomedical Science of St Michael's Hospital, St. Michael's Hospital, Toronto, ON, Canada;Department of Anaesthesia, National University of Ireland, Galway, Ireland;Departments of Anesthesia and Critical Care Medicine and Keenan Research Centre for Biomedical Science of St Michael's Hospital, St. Michael's Hospital, Toronto, ON, Canada, and Division of Critical Care, Departments of Anesthesia, Physiology and Interdepartmental, University of Toronto, Toronto, ON, Canada.

View Article and Find Full Text PDF

Novel Insights into the Direct Removal of Endotoxin by Polymyxin B Hemoperfusion.

Blood Purif

July 2018

Division of Biochemistry and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto, Canada.

Aim: To demonstrate the capacity of polymyxin B-direct hemoperfusion (PMX-DHP) column Toraymyxin® 20R (PMX-20R) in removing endotoxin (LPS) from perfused blood, serum and plasma.

Methods: Endotoxin-spiked bovine serum was perfused in PMX-20R as per the recommended performance testing protocol. Samples were taken at various time points to assess the amount of endotoxin removed during a 4-h session.

View Article and Find Full Text PDF

We have previously reported that once-weekly albiglutide was noninferior to thrice-daily lispro for glycemic lowering, with decreased weight and risk of hypoglycemia, in patients inadequately controlled on basal insulin over 26 weeks. Findings after 52 weeks reveal similar responses to albiglutide as an add-on to insulin glargine.

View Article and Find Full Text PDF

Background: Type 2 diabetes mellitus (T2DM) is often associated with mixed dyslipidaemia, where non-high-density lipoprotein cholesterol (non-HDL-C) levels may more closely align with cardiovascular risk than low-density lipoprotein cholesterol (LDL-C). We describe the design and rationale of the ODYSSEY DM-DYSLIPIDEMIA study that assesses the efficacy and safety of alirocumab, a proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor, versus lipid-lowering usual care in individuals with T2DM and mixed dyslipidaemia at high cardiovascular risk with non-HDL-C inadequately controlled despite maximally tolerated statin therapy. For the first time, atherogenic cholesterol-lowering with a PCSK9 inhibitor will be assessed with non-HDL-C as the primary endpoint with usual care as the comparator.

View Article and Find Full Text PDF

Perineural Dexmedetomidine Is More Effective Than Clonidine When Added to Local Anesthetic for Supraclavicular Brachial Plexus Block: A Systematic Review and Meta-analysis.

Anesth Analg

June 2017

From the *Department of Anesthesia, University of Toronto; Toronto, Ontario, Canada; †Department of Anesthesia, Toronto Western Hospital, Toronto, Ontario, Ontario, Canada; ‡Department of Anesthesia, Women's College Hospital, Toronto, Ontario, Canada; and §Department of Anesthesia and Keenan Research Centre in the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.

Background: Clonidine, an α-2 agonist, has long been used as a local anesthetic adjunct with proven efficacy to prolong peripheral nerve block duration. Dexmedetomidine, a newer α-2 agonist, has a more favorable pharmacodynamic and safety profile; however, data comparing its efficacy as an adjunct to that of clonidine are inconsistent. We sought to compare the clinical efficacy of these 2 α-2 agonists by examining their effects on peripheral nerve block characteristics for upper extremity surgery.

View Article and Find Full Text PDF

Clinical Outcomes Associated with Achromobacter Species Infection in Patients with Cystic Fibrosis.

Ann Am Thorac Soc

September 2017

4 Division of Infectious Diseases, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Ontario, Canada.

Rationale: Achromobacter species are increasingly identified in individuals with cystic fibrosis (CF), but the clinical outcomes in these patients remain poorly understood.

Objectives: We aimed to determine the association of Achromobacter infection on clinical outcomes in pediatric and adult patients with CF.

Methods: A cohort study of pediatric and adult patients with CF was conducted from 1997 to 2014 in Toronto, Ontario, Canada.

View Article and Find Full Text PDF

The harms of benzodiazepines for patients with dementia.

CMAJ

April 2017

Women's College Research Institute (Rochon), Women's College Hospital; Department of Medicine (Rochon, Vozoris), Institute of Health Policy, Management, and Evaluation (Rochon), University of Toronto; Department of Medicine and Keenan Research Centre in the Li Ka Shing Knowledge Institute (Vozoris), St. Michael's Hospital, Toronto, Ont.; Department of Medicine (Gill), Queen's University; Institute for Clinical Evaluative Sciences (Gill), Kingston, Ont.

View Article and Find Full Text PDF

Aims: The coadministration of alirocumab, a PCSK9 inhibitor for treatment of hypercholesterolaemia, and insulin in diabetes mellitus (DM) requires further study. Described here is the rationale behind a phase-IIIb study designed to characterize the efficacy and safety of alirocumab in insulin-treated patients with type 1 (T1) or type 2 (T2) DM with hypercholesterolaemia and high cardiovascular (CV) risk.

Methods: ODYSSEY DM-INSULIN (NCT02585778) is a randomized, double-blind, placebo-controlled, multicentre study that planned to enrol around 400 T2 and up to 100 T1 insulin-treated DM patients.

View Article and Find Full Text PDF

Identification of 12 new susceptibility loci for different histotypes of epithelial ovarian cancer.

Nat Genet

May 2017

Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK.

To identify common alleles associated with different histotypes of epithelial ovarian cancer (EOC), we pooled data from multiple genome-wide genotyping projects totaling 25,509 EOC cases and 40,941 controls. We identified nine new susceptibility loci for different EOC histotypes: six for serous EOC histotypes (3q28, 4q32.3, 8q21.

View Article and Find Full Text PDF

Diabetes mellitus (DM), a chronic metabolic disease characterized by hyperglycemia, is a profound cardiovascular (CV) risk factor. It compounds the effects of all other risk factors, leads to premature micro- and macrovascular disease, facilitates development of heart failure, worsens the clinical course of all CV diseases, and shortens life expectancy. Established DM, unrecognized DM, and dysglycemia that may progress to DM are all commonly present at the time of presentation of overt CV disease.

View Article and Find Full Text PDF

Pectoralis and Serratus Fascial Plane Blocks Each Provide Early Analgesic Benefits Following Ambulatory Breast Cancer Surgery: A Retrospective Propensity-Matched Cohort Study.

Anesth Analg

July 2017

From the *Department of Anesthesia, University of Toronto, Ontario, Canada; †Department of Anesthesia and Keenan Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada; ‡Department of Anesthesia, Women's College Hospital, Toronto, Ontario, Canada; §Department of Surgery, University of Toronto, Ontario, Canada; and ‖Department of Surgery, Women's College Hospital, Toronto, Ontario, Canada.

Background: Pectoralis and serratus blocks have been described recently for use in breast surgery, but evidence supporting their analgesic benefits is limited. This cohort study evaluates the benefits of adding a pectoralis or serratus block to conventional opioid-based analgesia (control) in patients who underwent ambulatory breast cancer surgery at Women's College Hospital between July 2013 and May 2015. We tested the joint hypothesis that adding a pectoralis or serratus block reduced postoperative in-hospital (predischarge) opioid consumption and nausea and vomiting (PONV).

View Article and Find Full Text PDF

Inclisiran in Patients at High Cardiovascular Risk with Elevated LDL Cholesterol.

N Engl J Med

April 2017

From the Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, Imperial College London, London (K.K.R.), and Knowle House Surgery, Plymouth (T.H.) - both in the United Kingdom; the Department of Cardiology, Charité-Universitätsmedizin Berlin, Berlin Institute of Health and German Center for Cardiovascular Research, Berlin (U.L.), and University Heart Center Hamburg, Department of General and Interventional Cardiology, Hamburg (M.K.) - all in Germany; the Division of Endocrinology and Metabolism, Li Ka Shing Knowledge Institute and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto (L.A.L.); the Medicines Company, Parsippany, NJ (D.K., P.W.); Institut de Recherches Cliniques de Montréal, University of Montreal, Montreal (R.D.); the Department of Cardiology and Interventional Cardiology, VieCuri Medical Center for Northern Limburg, Venlo (R.P.T.T.), University Medical Center, Utrecht (F.L.J.V.), and the Department of Vascular Medicine, Academic Medical Center-University of Amsterdam, Amsterdam (J.J.P.K.) - all in the Netherlands; the Metabolic and Atherosclerosis Research Center, Medpace, Cincinnati (T.T.); and the Department of Cardiology, Mayo Clinic, Rochester, MN (R.S.W.).

Background: In a previous study, a single injection of inclisiran, a chemically synthesized small interfering RNA designed to target PCSK9 messenger RNA, was found to produce sustained reductions in low-density lipoprotein (LDL) cholesterol levels over the course of 84 days in healthy volunteers.

Methods: We conducted a phase 2, multicenter, double-blind, placebo-controlled, multiple-ascending-dose trial of inclisiran administered as a subcutaneous injection in patients at high risk for cardiovascular disease who had elevated LDL cholesterol levels. Patients were randomly assigned to receive a single dose of placebo or 200, 300, or 500 mg of inclisiran or two doses (at days 1 and 90) of placebo or 100, 200, or 300 mg of inclisiran.

View Article and Find Full Text PDF

Pilot trial of tobramycin inhalation powder in cystic fibrosis patients with chronic Burkholderia cepacia complex infection.

J Cyst Fibros

July 2017

Division of Respirology and Keenan Research Centre of Li Ka Shing Knowledge Institute, Department of Medicine, St. Michael's Hospital, University of Toronto, 30 Bond Street, Toronto M5B 1W8, Canada. Electronic address:

There is no effective chronic suppressive therapy Burkholderia cepacia complex infection in cystic fibrosis (CF) patients. This was a pilot, open-label clinical trial of tobramycin inhalation powder (TIP) delivered via Podhaler twice daily for 28days in adults and children with CF and chronic B. cepacia complex infection in Toronto, Canada.

View Article and Find Full Text PDF

Oxidation and degradation of polypropylene transvaginal mesh.

J Biomater Sci Polym Ed

April 2017

a Department of Chemical and Biomolecular Engineering , Vanderbilt University, Nashville , TN , USA.

Polypropylene (PP) transvaginal mesh (TVM) repair for stress urinary incontinence (SUI) has shown promising short-term objective cure rates. However, life-altering complications have been associated with the placement of PP mesh for SUI repair. PP degradation as a result of the foreign body reaction (FBR) has been proposed as a contributing factor to mesh complications.

View Article and Find Full Text PDF

Background: Aldosterone may have adverse effects in the myocardium and vasculature. Treatment with an aldosterone antagonist reduces cardiovascular risk in patients with acute myocardial infarction complicated by heart failure (HF) and left ventricular systolic dysfunction. However, most patients with acute coronary syndrome do not have advanced HF.

View Article and Find Full Text PDF

The neuropathological hallmark of Parkinson disease (PD) is abnormal accumulation of α-synuclein (α-syn). Demonstrating pathological α-syn in live patients would be useful for identifying and monitoring PD patients. To date, however, imaging and biofluid approaches have not permitted premortem assessment of pathological α-syn.

View Article and Find Full Text PDF

Importance: Patients with type 2 diabetes are at high risk of cardiovascular disease (CVD) in part owing to hypertriglyceridemia and low high-density lipoprotein cholesterol. It is unknown whether adding triglyceride-lowering treatment to statin reduces this risk.

Objective: To determine whether fenofibrate reduces CVD risk in statin-treated patients with type 2 diabetes.

View Article and Find Full Text PDF

Purpose: Extracorporeal membrane oxygenation (ECMO) is a rescue therapy for patients with acute respiratory distress syndrome (ARDS). The aim of this study was to evaluate associations between ventilatory settings during ECMO for refractory hypoxemia and outcome in ARDS patients.

Methods: In this individual patient data meta-analysis of observational studies in adult ARDS patients receiving ECMO for refractory hypoxemia, a time-dependent frailty model was used to determine which ventilator settings in the first 3 days of ECMO had an independent association with in-hospital mortality.

View Article and Find Full Text PDF

Rationale: During noninvasive ventilation (NIV) for chronic obstructive pulmonary disease (COPD) exacerbations, helium/oxygen (heliox) reduces the work of breathing and hypercapnia more than air/O, but its impact on clinical outcomes remains unknown.

Objectives: To determine whether continuous administration of heliox for 72 hours, during and in-between NIV sessions, was superior to air/O in reducing NIV failure (25-15%) in severe hypercapnic COPD exacerbations.

Methods: This was a prospective, randomized, open-label trial in 16 intensive care units (ICUs) and 6 countries.

View Article and Find Full Text PDF

The authors reply.

Crit Care Med

October 2016

Departement of Critical Care and Research Center of Hôpital du Sacré-Coeur de Montréal, Montreal, Québec, Canada;Department of Critical Care Medicine, St. Michael's Hospital and Keenan Research Centre for Biomedical Science of the Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada.

View Article and Find Full Text PDF

Hyperpolarized 13C Metabolic MRI of the Human Heart: Initial Experience.

Circ Res

November 2016

From the Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada (C.H.C., J.Y.C.L., B.J.G., G.A.W.); Medical Biophysics, University of Toronto, ON, Canada (C.H.C., J.Y.C.L., B.J.G., G.A.W.); GE Healthcare, Toronto, ON, Canada (A.P.C.); Pharmacy (W.J.P.) and Schulich Heart Program (I.R., G.A.W.), Sunnybrook Health Sciences Centre, Toronto, ON, Canada; and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada (K.A.C).

Rationale: Altered cardiac energetics is known to play an important role in the progression toward heart failure. A noninvasive method for imaging metabolic markers that could be used in longitudinal studies would be useful for understanding therapeutic approaches that target metabolism.

Objective: To demonstrate the first hyperpolarized C metabolic magnetic resonance imaging of the human heart.

View Article and Find Full Text PDF

Semaglutide and Cardiovascular Outcomes in Patients with Type 2 Diabetes.

N Engl J Med

November 2016

From the Research Medical Center, Kansas City, MO (S.P.M.); School of Medicine, Swansea University, Swansea, United Kingdom (S.C.B.); Department of Medicine and Aging Science and Center of Excellence on Aging and Translational Medicine, G. d'Annunzio University, Chieti-Pescara, Italy (A.C.); CPClin Research Center/Hospital Israelita Albert Einstein, São Paulo (F.G.E.); Hospital Universitario Quirón Salud Madrid, Facultad de Ciencias de la Salud, Universidad Europea de Madrid, Madrid (E.J.); Li Ka Shing Knowledge Institute and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, University of Toronto, Toronto (L.A.L.), and the University of Manitoba, Winnipeg (V.W.) - both in Canada; University of Texas Southwestern Medical Center (I.L.) and Dallas Diabetes Research Center at Medical City (J.R.) - both in Dallas; University of Freiburg Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany (J.S.); Physicians East, Greenville, NC (M.L.W.); and Novo Nordisk, Søborg (O.H., A.G.H., J.P.), and the Center for Diabetes Research, Gentofte Hospital, University of Copenhagen, Hellerup (T.V.) - both in Denmark.

Background: Regulatory guidance specifies the need to establish cardiovascular safety of new diabetes therapies in patients with type 2 diabetes in order to rule out excess cardiovascular risk. The cardiovascular effects of semaglutide, a glucagon-like peptide 1 analogue with an extended half-life of approximately 1 week, in type 2 diabetes are unknown.

Methods: We randomly assigned 3297 patients with type 2 diabetes who were on a standard-care regimen to receive once-weekly semaglutide (0.

View Article and Find Full Text PDF

Psychological and Physiological Markers of Stress in Concussed Athletes Across Recovery Milestones.

J Head Trauma Rehabil

March 2018

Faculty of Kinesiology & Physical Education, University of Toronto, Ontario, Canada (Drs Hutchison, Mainwaring, Thomas, Richards, and Ms Senthinathan); and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Ontario, Canada (Drs Hutchison and Churchill).

Background: Sport-related concussions are associated with a range of physical, cognitive, and behavioral disturbances that are highly variable across individuals. Much remains unknown about the effects of sport concussion, and changes in markers of psychological and physiological stress over the recovery timeline.

Objective: To examine psychological (mood, stress, sleep quality, and symptoms) and physiological (heart rate variability and salivary cortisol) measures in concussed athletes over clinical recovery milestones.

View Article and Find Full Text PDF