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Over the last few decades, a growing body of evidence has shown that the immune system is intimately connected with cardiac development, function and adaptation to injury. However, there is still much to learn and currently there are no immunomodulatory treatments to prevent or treat heart dysfunction.
The Adamo Lab aims to study applied immunology in the context of cardiac function and dysfunction, to both elucidate fundamental properties of the immune systems and to develop novel therapeutic options for the rapidly growing number of patients living with heart disease.
Adult Cardiac Catheterization Laboratory
Our group is interested in the evaluation of basic pathophysiology in patients undergoing cardiac procedures, development and evaluation of new therapeutic strategies, and improving patient selection and outcomes following interventional procedures.
Research in the Anderson laboratory focuses on cellular signaling and ionic mechanisms that cause heart failure, arrhythmias and sudden cardiac death, major public health problems worldwide. Primary focus is on the multifunctional Ca2+ and calmodulin-dependent protein kinase II (CaMKII). The laboratory identified CaMKII as an important pro-arrhythmic and pro-cardiomyopathic signal, and its studies have provided proof of concept evidence motivating active efforts in biotech and the pharmaceutical industry to develop therapeutic CaMKII inhibitory drugs to treat heart failure and arrhythmias.
Under physiological conditions, CaMKII is important for excitation-contraction coupling and fight or flight increases in heart rate. However, myocardial CaMKII is excessively activated during disease conditions where it contributes to loss of intracellular Ca2+ homeostasis, membrane hyperexcitability, premature cell death, and hypertrophic and inflammatory transcription. These downstream targets a...ppear to contribute coordinately and decisively to heart failure and arrhythmias. Recently, researchers developed evidence that CaMKII also participates in asthma.
Efforts at the laboratory, funded by grants from the National Institutes of Health, are highly collaborative and involve undergraduate assistants, graduate students, postdoctoral fellows and faculty. Key areas of focus are:
• Ion channel biology and arrhythmias
• Cardiac pacemaker physiology and disease
• Molecular physiology of CaMKII
• Myocardial and mitochondrial metabolism
• CaMKII and reactive oxygen species in asthma
Mark Anderson, MD, is the William Osler Professor of Medicine, the director of the Department of Medicine in the Johns Hopkins University School of Medicine and physician-in-chief of The Johns Hopkins Hospital. view less
We specialize in unconventional, multi-disciplinary approaches to studying the heart at the intersection of applied mathematics, physics and computer science. We focus on theory development that leads to new technology and value delivery to the society. Currently we have three research programs:
1. Precision Medicine
To develop a quantitative approach to personalized risk assessment for stroke and dementia based on patent-specific heart anatomy, function and blood flow.
Disciplines: Cardiac Hemodynamics; Medical Imaging Physics; Continuum Mechanics; Computational Fluid Dynamics
2. Information Theory
To quantify and perturb cardiac fibrillation that emerges as a macro-scale behavior of the heart from micro-scale behaviors of inter-dependent components.
Disciplines: Cardiac Electrophysiology; Spiral Wave; Information Theory; Complex Networks
3. Artificial Intelligence
To develop artificial intelligence algorithms to predict the future risk of heart attack, stroke and sudden... death, and to assist surgical interventions to prevent these outcomes.
Disciplines: Medical Imaging Physics; Artificial Intelligence; Robotically Assisted Interventions
Ayse Gurses Lab
Work in the Ayse Gurses Lab examines several topics related to human factors, including methods for improving patient safety in the cardiac operating room, care coordination, transitions of care and compliance of providers with evidence-based guidelines. Our team also has an interest in research that explores the working conditions of nurses. We collaborate on studies related to the development of geriatrics health service delivery at all levels of the health system.
The Cammarato Lab is located in the Division of Cardiology in the Department of Medicine at the Johns Hopkins University School of Medicine. We are interested in basic mechanisms of striated muscle biology.
We employ an array of imaging techniques to study “structural physiology” of cardiac and skeletal muscle. Drosophila melanogaster, the fruit fly, expresses both forms of striated muscle and benefits greatly from powerful genetic tools. We investigate conserved myopathic (muscle disease) processes and perform hierarchical and integrative analysis of muscle function from the level of single molecules and macromolecular complexes through the level of the tissue itself.
Anthony Ross Cammarato, MD, is an assistant professor of medicine in the Cardiology Department. He studies the identification and manipulation of age- and mutation-dependent modifiers of cardiac function, hierarchical modeling and imaging of contractile machinery, integrative analysis of striated muscle performan...ce and myopathic processes. view more
The Cardiac Bioelectric Systems Laboratory research focuses on both the physiological and pathophysiological function of cardiac cells at a multicellular, syncytial level. We use cell culture models in a manner akin to mathematical models in which elements of the model can be designed, synthesized or controlled. Our traditional approach consists of cultured, confluent monolayers of cardiac cells that number in the tens of thousands to a million. These cell monolayers can be engineered in terms of their tissue architecture, cell type, protein expression and microenvironment, and have been used to study clinically relevant phenomena in the heart that include electrical stimulation, electrical propagation, arrhythmia and cell therapy.
Founded in 1942 by surgeon Alfred Blalock and surgical technician Vivien Thomas, the Cardiac Surgery Research Lab at The Johns Hopkins Hospital serves not only to spearhead discovery and innovation in cardiothoracic surgery, but also to train future leaders in the field. Active areas of investigation include the development of novel, nanoparticle-based therapeutics to mitigate acute lung injury, avoid neurological injury during cardiac surgery, and improve organ preservation during heart and lung transplantation. The lab is also active in a variety of clinical research projects aimed at improving outcomes for our patients.
Equally important, the lab plays a critical role in training residents for impactful careers in academic cardiothoracic surgery. Medical students, residents, and fellows receive hands-on simulation experiences to hone surgical skills outside of the operating room. The lab also serves as a training ground to develop research and investigation skills as trainees lea...rn methods of advanced statistical analysis and academic writing. Special programs for undergraduates and medical students help develop their passion for cardiac surgery and surgical research, giving unique opportunities to young talent. view less
The Cardiology Bioengineering Laboratory, located in the Johns Hopkins Hospital, focuses on the applications of advanced imaging techniques for arrhythmia management. The primary limitation of current fluoroscopy-guided techniques for ablation of cardiac arrhythmia is the inability to visualize soft tissues and 3-dimensional anatomic relationships.
Implementation of alternative advanced modalities has the potential to improve complex ablation procedures by guiding catheter placement, visualizing abnormal scar tissue, reducing procedural time devoted to mapping, and eliminating patient and operator exposure to radiation.
Active projects include
• Physiological differences between isolated hearts in ventricular fibrillation and pulseless electrical activity
• Successful ablation sites in ischemic ventricular tachycardia in a porcine model and the correlation to magnetic resonance imaging (MRI)
• MRI-guided radiofrequency ablation of canine atrial fibrillation, and ...diagnosis and intervention for arrhythmias
• Physiological and metabolic effects of interruptions in chest compressions during cardiopulmonary resuscitation
Henry Halperin, MD, is co-director of the Johns Hopkins Imaging Institute of Excellence and a
professor of medicine, radiology and biomedical engineering. Menekhem M. Zviman, PhD is the laboratory manager.
The research program aims to advance cardiovascular biology and medicine by focusing on pluripotent stem cell-based modeling and therapy and by nurturing future leaders in regenerative medicine.