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Articles 61 - 75 of 75
Full-Text Articles in Cardiovascular Diseases
Contrast-Enhanced Cardiac Magnetic Resonance Imaging With A Manganese-Based Alternative To Gadolinium For Tissue Characterization Of Acute Myocardial Infarction, Benjamin P. Bonner, Salva R. Yurista, Jaume Coll-Font, Shi Chen, Robert A. Eder, Anna N. Foster, Khoi D. Nguyen, Peter Caravan, Eric M. Gale, Christopher Nguyen
Contrast-Enhanced Cardiac Magnetic Resonance Imaging With A Manganese-Based Alternative To Gadolinium For Tissue Characterization Of Acute Myocardial Infarction, Benjamin P. Bonner, Salva R. Yurista, Jaume Coll-Font, Shi Chen, Robert A. Eder, Anna N. Foster, Khoi D. Nguyen, Peter Caravan, Eric M. Gale, Christopher Nguyen
School of Medicine Faculty Publications
BACKGROUND: Late gadolinium enhancement cardiac magnetic resonance imaging is an effective and reproducible method for characterizing myocardial infarction. However, gadolinium-based contrast agents are contraindicated in patients with acute and chronic renal insufficiency. In addition, several recent studies have noted tissue deposition of free gadolinium in patients who have undergone serial contrast-enhanced magnetic resonance imaging. There is a clinical need for alternative forms of magnetic resonance imaging contrast agents that are acceptable in the setting of renal insufficiency. METHODS AND RESULTS: Three days after 80 minutes of ischemia/reperfusion of the left anterior descending coronary artery, cardiac magnetic resonance imaging was performed …
A Rare Find: Pericardial Carcinomatosis And Pre-Tamponade Secondary To Gastric Cancer, Humza Malik, Alex Glaser, Mehnaz Rahman, Jasmine Taylor, Xavier Diaz-Hernandez, Archit Shukla
A Rare Find: Pericardial Carcinomatosis And Pre-Tamponade Secondary To Gastric Cancer, Humza Malik, Alex Glaser, Mehnaz Rahman, Jasmine Taylor, Xavier Diaz-Hernandez, Archit Shukla
School of Medicine Faculty Publications
American College of Cardiology Conference ACC.23, March 4 - 6, 2023, New Orleans, LA
Squamous Cell Carcinoma With Suspected Metastases To The Myocardial Wall As Evidenced By Contrast Transthoracic Echocardiogram., Trent Davidge, Shashitha Gavini, Thomas H. Fox, Mehnaz Rahman
Squamous Cell Carcinoma With Suspected Metastases To The Myocardial Wall As Evidenced By Contrast Transthoracic Echocardiogram., Trent Davidge, Shashitha Gavini, Thomas H. Fox, Mehnaz Rahman
School of Medicine Faculty Publications
American College of Cardiology Conference ACC.23, March 4 - 6, 2023, New Orleans, LA
A Case Of Bartonella Vinsonii Endocarditis Of Non-Native Pulmonic Valve In A Patient With Tetralogy Of Fallot., Emily Riley, Jesus C. Jaile Iv, Sergio Bartakian
A Case Of Bartonella Vinsonii Endocarditis Of Non-Native Pulmonic Valve In A Patient With Tetralogy Of Fallot., Emily Riley, Jesus C. Jaile Iv, Sergio Bartakian
School of Medicine Faculty Publications
American College of Cardiology Conference ACC.23, March 4 - 6, 2023, New Orleans, LA
H2s, Sg-1002, Protects Against Myocardial Oxidative Damage And Hypertrophy In Vitro Via Induction Of Cystathionine Β-Synthase And Antioxidant Proteins, Rahib K. Islam, Erinn Donnelly, Erminia Donnarumma, Fokhrul Hossain, Jason D. Gardner, Kazi N. Islam
H2s, Sg-1002, Protects Against Myocardial Oxidative Damage And Hypertrophy In Vitro Via Induction Of Cystathionine Β-Synthase And Antioxidant Proteins, Rahib K. Islam, Erinn Donnelly, Erminia Donnarumma, Fokhrul Hossain, Jason D. Gardner, Kazi N. Islam
School of Medicine Faculty Publications
Endogenously produced hydrogen sulfide (H2S) is critical for cardiovascular homeostasis. Therapeutic strategies aimed at increasing H2S levels have proven cardioprotective in models of acute myocardial infarction (MI) and heart failure (HF). The present study was undertaken to investigate the effects of a novel H2S prodrug, SG-1002, on stress induced hypertrophic signaling in murine HL-1 cardiac muscle cells. Treatment of HL-1 cells with SG-1002 under serum starvation without or with H2O2 increased the levels of H2S, H2S producing enzyme, and cystathionine β-synthase (CBS), as well as antioxidant protein levels, such as super oxide dismutase1 (SOD1) and catalase, and additionally decreased oxidative …
Combination Sodium Nitrite And Hydralazine Therapy Attenuates Heart Failure With Preserved Ejection Fraction Severity In A “2-Hit” Murine Model, Kyle B. Lapenna, Zhen Li, Jake E. Doiron, Thomas E. Sharp, Huijing Xia, Karl Moles, Kashyap Koul, John S. Wang, David J. Polhemus, Traci T. Goodchild, Ravi B. Patel, Sanjiv J. Shah, David J. Lefer
Combination Sodium Nitrite And Hydralazine Therapy Attenuates Heart Failure With Preserved Ejection Fraction Severity In A “2-Hit” Murine Model, Kyle B. Lapenna, Zhen Li, Jake E. Doiron, Thomas E. Sharp, Huijing Xia, Karl Moles, Kashyap Koul, John S. Wang, David J. Polhemus, Traci T. Goodchild, Ravi B. Patel, Sanjiv J. Shah, David J. Lefer
School of Medicine Faculty Publications
BACKGROUND: Recent studies have suggested that cardiac nitrosative stress mediated by pathological overproduction of nitric oxide (NO) via inducible NO synthase (iNOS) contributes to the pathogenesis of heart failure with preserved ejection fraction (HFpEF). Other studies have suggested that endothelial NO synthase (eNOS) dysfunction and attenuated NO bioavailability contribute to HFpEF morbidity and mortality. We sought to further investigate dysregulated NO signaling and to examine the effects of a NO-based dual therapy (sodium nitrite+hydralazine) following the onset of HFpEF using a “2-hit” murine model. METHODS AND RESULTS: Nine-week-old male C57BL/6 N mice (n=15 per group) were treated concurrently with high-fat …
Magnetic Resonance Imaging-Derived Microvascular Perfusion Modeling To Assess Peripheral Artery Disease, Olga A. Gimnich, Tatiana Belousova, Christina M. Short, Addison A. Taylor, Vijay Nambi, Joel D. Morrisett, Christie M. Ballantyne, Jean Bismuth, Dipan J. Shah, Gerd Brunner
Magnetic Resonance Imaging-Derived Microvascular Perfusion Modeling To Assess Peripheral Artery Disease, Olga A. Gimnich, Tatiana Belousova, Christina M. Short, Addison A. Taylor, Vijay Nambi, Joel D. Morrisett, Christie M. Ballantyne, Jean Bismuth, Dipan J. Shah, Gerd Brunner
School of Medicine Faculty Publications
BACKGROUND: Computational fluid dynamics has shown good agreement with contrast-enhanced magnetic resonance imaging measurements in cardiovascular disease applications. We have developed a biomechanical model of microvascular perfusion using contrast-enhanced magnetic resonance imaging signal intensities derived from skeletal calf muscles to study peripheral artery disease (PAD). METHODS AND RESULTS: The computational microvascular model was used to study skeletal calf muscle perfusion in 56 in-dividuals (36 patients with PAD, 20 matched controls). The recruited participants underwent contrast-enhanced magnetic resonance imaging and ankle-brachial index testing at rest and after 6-minute treadmill walking. We have determined associations of microvascular model parameters including the transfer …
Hereditary Angioedema: Diagnosis, Clinical Implications, And Pathophysiology, Evan S. Sinnathamby, Peter P. Issa, Logan Roberts, Haley Norwood, Kevin Malone, Harshitha Vemulapalli, Shahab Ahmadzadeh, Elyse M. Cornett, Sahar Shekoohi, Alan D. Kaye
Hereditary Angioedema: Diagnosis, Clinical Implications, And Pathophysiology, Evan S. Sinnathamby, Peter P. Issa, Logan Roberts, Haley Norwood, Kevin Malone, Harshitha Vemulapalli, Shahab Ahmadzadeh, Elyse M. Cornett, Sahar Shekoohi, Alan D. Kaye
School of Medicine Faculty Publications
Hereditary angioedema (HAE) is an autosomal dominant disorder caused by a mutation in the C1 esterase inhibitor gene. HAE affects 1/50,000 people worldwide. Three main types of HAE exist: type I, type II, and type III. Type I is characterized by a deficiency in C1-INH. C1-INH is important in the coagulation complement, contact systems, and fibrinolysis. Most HAE cases are type I. Type I and II HAE result from a mutation in the SERPING1 gene, which encodes C1-INH. Formally known as type III HAE is typically an estrogen-dependent or hereditary angioedema with normal C1-INH activity. Current guidelines now recommend subdividing …
Insulin-Like Growth Factor 1 Reduces Coronary Atherosclerosis In Pigs With Familial Hypercholesterolemia, Sergiy Sukhanov, Yusuke Higashi, Tadashi Yoshida, Svitlana Danchuk, Mitzi Alfortish, Traci Goodchild, Amy Scarborough, Thomas Sharp, James S. Jenkins, Daniel Garcia, Jan Ivey, Darla L. Tharp, Jeffrey Schumacher, Zach Rozenbaum, Jay K. Kolls, Douglas Bowles, David Lefer, Patrice Delafontaine
Insulin-Like Growth Factor 1 Reduces Coronary Atherosclerosis In Pigs With Familial Hypercholesterolemia, Sergiy Sukhanov, Yusuke Higashi, Tadashi Yoshida, Svitlana Danchuk, Mitzi Alfortish, Traci Goodchild, Amy Scarborough, Thomas Sharp, James S. Jenkins, Daniel Garcia, Jan Ivey, Darla L. Tharp, Jeffrey Schumacher, Zach Rozenbaum, Jay K. Kolls, Douglas Bowles, David Lefer, Patrice Delafontaine
School of Medicine Faculty Publications
Although murine models of coronary atherosclerotic disease have been used extensively to determine mechanisms, limited new therapeutic options have emerged. Pigs with familial hypercholesterolemia (FH pigs) develop complex coronary atheromas that are almost identical to human lesions. We reported previously that insulin-like growth factor 1 (IGF-1) reduced aortic atherosclerosis and promoted features of stable plaque in a murine model. We administered human recombinant IGF-1 or saline (control) in atherosclerotic FH pigs for 6 months. IGF-1 decreased relative coronary atheroma in vivo (intravascular ultrasound) and reduced lesion cross-sectional area (postmortem histology). IGF-1 increased plaque’s fibrous cap thickness, and reduced necrotic core, …
Objective Evaluation Of Clock Face Suture Using The Objective Structured Assessment Of Technical Skill Checklist, Lucille Treil, Nicole Neumann, Nicolas Chanes, Anne Lejay, Tristan Bourcier, Jean Bismuth, Jason T. Lee, Malachi Sheahan, Anne Florence Rouby, Nabil Chakfé, John Eidt, Yannick Georg, Erica Leith Mitchell, David Rigberg, Murray Shames, Fabien Thaveau, Claudie Sheahan
Objective Evaluation Of Clock Face Suture Using The Objective Structured Assessment Of Technical Skill Checklist, Lucille Treil, Nicole Neumann, Nicolas Chanes, Anne Lejay, Tristan Bourcier, Jean Bismuth, Jason T. Lee, Malachi Sheahan, Anne Florence Rouby, Nabil Chakfé, John Eidt, Yannick Georg, Erica Leith Mitchell, David Rigberg, Murray Shames, Fabien Thaveau, Claudie Sheahan
School of Medicine Faculty Publications
Objective: Assessment of the quality of the final product (QFP) is critical in simulation training, such as the clock face suture (CFS) exercise that is used to assess trainees’ needle handling and suturing accuracy. Objective Structured Assessment of Technical Skill (OSATS) scores are the gold standard for the evaluation of trainees. The aim was to investigate variability in the use of OSATS checklists and to evaluate a semi-automatic method of suture analysis vs. OSATS scores. Methods: Details of 287 CFSs performed by trainees during Fundamentals in Vascular Surgery examinations were collected. All were rated according to a seven item OSATS …
Genetically Encoded Atp Biosensors For Direct Monitoring Of Cellular Atp Dynamics, Donnell White, Qinglin Yang
Genetically Encoded Atp Biosensors For Direct Monitoring Of Cellular Atp Dynamics, Donnell White, Qinglin Yang
School of Medicine Faculty Publications
Adenosine 5′-triphosphate, or ATP, is the primary molecule for storing and transferring energy in cells. ATP is mainly produced via oxidative phosphorylation in mitochondria, and to a lesser extent, via glycolysis in the cytosol. In general, cytosolic glycolysis is the primary ATP producer in proliferative cells or cells subjected to hypoxia. On the other hand, mitochondria produce over 90% of cellular ATP in differentiated cells under normoxic conditions. Under pathological conditions, ATP demand rises to meet the needs of biosynthesis for cellular repair, signaling transduction for stress responses, and biochemical processes. These changes affect how mitochondria and cytosolic glycolysis function …
Crel And Wnt5a/Frizzled 5 Receptor-Mediated Inflammatory Regulation Reveal Novel Neuroprotectin D1 Targets For Neuroprotection, Jorgelina M. Calandria, Khanh V. Do, Sayantani Kala-Bhattacharjee, Andre Obenaus, Ludmila Belayev, Nicolas G. Bazan
Crel And Wnt5a/Frizzled 5 Receptor-Mediated Inflammatory Regulation Reveal Novel Neuroprotectin D1 Targets For Neuroprotection, Jorgelina M. Calandria, Khanh V. Do, Sayantani Kala-Bhattacharjee, Andre Obenaus, Ludmila Belayev, Nicolas G. Bazan
School of Medicine Faculty Publications
Abstract: Wnt5a triggers inflammatory responses and damage via NFkB/p65 in retinal pigment epithelial (RPE) cells undergoing uncompensated oxidative stress (UOS) and in experimental ischemic stroke. We found that Wnt5a-Clathrin-mediated uptake leads to NFkB/p65 activation and that Wnt5a is secreted in an exosome-independent fashion. We uncovered that docosahexaenoic acid (DHA) and its derivative, Neuroprotectin D1 (NPD1), upregulate c-Rel expression that, as a result, blunts Wnt5a abundance by competing with NFkB/p65 on the Wnt5a promoter A. Wnt5a increases in ischemic stroke penumbra and blood, while DHA reduces Wnt5a abundance with concomitant neuroprotection. Peptide inhibitor of Wnt5a binding, Box5, is also neuroprotective. DHA-decreased …
Serious Adverse Events And 30-Day Hospital Readmission Rate Following Elective Total Knee Arthroplasty: A Systematic Review And Meta-Analysis., Costas Papakostidis, Peter V Giannoudis, J. Tracy Watson, Robert Zura, R. Grant Steen
Serious Adverse Events And 30-Day Hospital Readmission Rate Following Elective Total Knee Arthroplasty: A Systematic Review And Meta-Analysis., Costas Papakostidis, Peter V Giannoudis, J. Tracy Watson, Robert Zura, R. Grant Steen
School of Medicine Faculty Publications
Background: Elective total knee arthroplasty (TKA) is a common surgery which has evolved rapidly. However, there are no recent large systematic reviews of serious adverse event (SAE) rate and 30-day readmission rate (30-dRR) or an indication of whether surgical methods have improved. Methods: To obtain a pooled estimate of SAE rate and 30-dRR following TKA, we searched Medline, Web of Science, Cochrane Library, and Google Scholar databases. Data were extracted by two authors following PRISMA guidelines. Eligibility criteria were defined prior to a comprehensive search. Studies were eligible if they were published in 2007 or later, described sequelae of TKA …
Ace2 Mouse Models: A Toolbox For Cardiovascular And Pulmonary Research, Hongpeng Jia, Xinping Yue, Eric Lazartigues
Ace2 Mouse Models: A Toolbox For Cardiovascular And Pulmonary Research, Hongpeng Jia, Xinping Yue, Eric Lazartigues
School of Medicine Faculty Publications
Angiotensin-converting enzyme 2 (ACE2) has been identified as the host entry receptor for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for the COVID-19 pandemic. ACE2 is a regulatory enzyme of the renin-angiotensin system and has protective functions in many cardiovascular, pulmonary and metabolic diseases. This review summarizes available murine models with systemic or organ-specific deletion of ACE2, or with overexpression of murine or human ACE2. The purpose of this review is to provide researchers with the genetic tools available for further understanding of ACE2 biology and for the investigation of ACE2 in the pathogenesis and treatment of COVID-19.
Pediatric Erythromelalgia Treated With Epidural Ropivacaine Infusion, Caroline E. Lee, Kelly Paulk, Kristen Garvie, Elizabeth Grieshaber, Jeffrey Carter, Brian Ball
Pediatric Erythromelalgia Treated With Epidural Ropivacaine Infusion, Caroline E. Lee, Kelly Paulk, Kristen Garvie, Elizabeth Grieshaber, Jeffrey Carter, Brian Ball
School of Medicine Faculty Publications
No abstract provided.