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Displaying 1 to 16 of 16 results for pathophysiology

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  • 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 Areas: cardiac catheterization, Acute Myocardial Infarction

    Principal Investigator

    Jon Resar, M.D.

    Department

    Medicine

  • Brady Maher Laboratory

    The Brady Maher Laboratory is interested in understanding the cellular and circuit pathophysiology that underlies neurodevelopmental and psychiatric disorders. Our lab focuses on trying to understand the function of genes that are associated with neurodevelopment problems by manipulating their expression level in utero during the peak of cortical development. We then use a variety of approaches and technologies to identify resulting phenotypes and molecular mechanisms including cell and molecular biology, optogenetics, imaging and electrophysiology.

    Current projects in the lab are focused on understanding the function of transcription factor 4 (TCF4), a clinically pleiotropic gene. Genome-wide association studies have identified genetic variants of TCF4 that are associated with schizophrenia, while autosomal dominant mutations in TCF4 result in Pitt Hopkins syndrome. Using our model system, we have identified several interesting electrophysiological and cell biological phenotypes as...sociated with altering the expression of TCF4 in utero. We hypothesize that these phenotypes represent cellular pathophysiology related to these disorders and by understanding the molecular mechanisms responsible for these phenotypes we expect to identify therapeutic targets for drug development.
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    Research Areas: cell biology, neurodevelopment, imaging, schizophrenia, psychiatric disorders, Pitt Hopkins syndrome, elecrophysiology, genomics, drugs, optogenetics, molecular biology, phenotypes

  • David Feller-Kopman Lab

    Research interests in the David Feller-Kopman Lab include improving the multidisciplinary treatment of patients with complex airway disease, investigating the physiology and pathophysiology of non-malignant central airway obstruction and pleural disease, and developing novel methods to teach procedural skills.

    Research Areas: medical education, non-malignant central airway obstruction, pathophysiology, physiology, COPD

    Principal Investigator

    David Feller-Kopman, M.D.

    Department

    Medicine

  • Gilotra Lab

    The main focus of Dr. Gilotra's research is understanding the pathophysiology and outcomes in inflammatory cardiomyopathies including myocarditis and sarcoidosis, as well as improvement of heart failure patient care through noninvasive hemodynamic monitoring and studying novel strategies to reduce heart failure hospitalizations. Additional investigations involve clinical research in advanced heart failure therapies including heart transplantation and mechanical circulatory support. Dr. Gilotra is the site Principal Investigator for the NIH/NHLBI funded Heart Failure Network trials.

    Research Areas: heart failure, cardiology, cardiomyopathy

    Principal Investigator

    Nisha Gilotra, M.D.

    Department

    Medicine

  • Gregg Semenza Lab

    The Gregg Semenza Lab studies the molecular mechanisms of oxygen homeostasis. We have cloned and characterized hypoxia-inducible factor 1 (HIF-1), a basic helix-loop-helix transcription factor.

    Current research investigates the role of HIF-1 in the pathophysiology of cancer, cerebral and myocardial ischemia, and chronic lung disease, which are the most common causes of mortality in the U.S.

    Research Areas: cancer, oxygen, lung disease, genomics, HIF-1, pathogenesis, myocardial ischemia

    Principal Investigator

    Gregg Semenza, M.D., Ph.D.

    Department

    Pediatrics

  • Integrated Research Center for Fetal Medicine

    Currently supported research includes pathophysiology of fetal brain development with intrauterine insults, ultrasound and bio- markers of fetal well-being and biomarkers for fetal disease stratification and response to treatment (such as magnesium sulfate administration or head cooling as in cases of neuroinflammation).

    Research Areas: fetal brain development

  • Interventional Cardiology Research Group

    Our group is interested in a broad array of clinical and translational investigations spanning 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. We are comprised of a core group of faculty and dedicated research nurses as well as fellows, residents, and students. Projects range from investigator-initiated single-center observational studies to industry-sponsored multicenter phase 3 randomized controlled trials. We have established a database of all patients who have undergone TAVR at Johns Hopkins, which is providing the basis for several retrospective analyses and will serve as the foundation for future studies of TAVR. We are also engaged in collaborative projects with other groups from the Department of Medicine and other Departments including Cardiac Surgery, Anesthesiology, Radiology, Psychiatry, and Biomedical... Engineering. Members of our group are actively involved with the Johns Hopkins Center for Bioengineering Innovation and Design (CBID) in the development of novel minimally-invasive cardiovascular devices. view more

    Research Areas: coronary CT angiography, PCI, bioprosthetic leaflet thrombosis, myocardial regeneration, TAVR

    Principal Investigator

    Jon Resar, M.D.

    Department

    Medicine

  • Ivor Berkowitz Lab

    Research in the Ivor Berkowitz Lab targets pediatric critical care medicine. We are particularly interested in the pathophysiology behind the cerebrovascular dysfunction that occurs in bacterial meningitis as well as the anesthetic and perioperative complications of patients with dwarfing syndromes.

    Research Areas: cerebrovascular dysfunction, bacterial meningitis, dwarfing syndromes, pediatric critical care medicine

  • Jantzie Lab

    Dr. Jantzie, associate professor, received her Ph.D. in Neurochemistry from the University of Alberta in 2008. In 2013 she completed her postdoctoral fellowship in the Department of Neurology at Boston Children's Hospital & Harvard Medical School and became faculty at the University of New Mexico. Dr. Jantzie then joined the faculty Departments of Pediatrics (Neonatal-Perinatal Medicine) and Neurology at Johns Hopkins University and the Kennedy Krieger Institute in January 2019. Her lab investigates the pathophysiology of encephalopathy of prematurity, and pediatric brain injury common to infants and toddlers. Dr. Jantzie is dedicated to understanding disease processes in the developing brain as a means to identifying new therapeutic strategies and treatment targets for perinatal brain injury. Her lab studies neural substrates of cognition and executive function, inhibitory circuit formation, the role of an abnormal intrauterine environment on brain development, mechanisms of neurorepa...ir and microglial activation and polarization. Using a diverse array of clinically relevant techniques such as MRI, cognitive assessment, and biomarker discovery, combined with traditional molecular and cellular biology, the Jantzie lab is on the front lines of translational pediatric neuroscience.? view more

    Research Areas: Neonatology, neuroscience

    Principal Investigator

    Lauren Jantzie, Ph.D.

    Department

    Pediatrics

  • John Aucott Lab

    Research in the John Aucott Lab focuses on the development of accurate diagnostic tests for all stages of Lyme disease. We work closely with Dr. Mark Soloski on the Study of Lyme disease Immunology and Clinical Events (SLICE), a longitudinal, matched-control study of patients diagnosed with early untreated Lyme disease. The objective is to use the collected biological samples to help identify novel Lyme disease biomarkers that can inform diagnoses, outcomes and the knowledge about disease pathophysiology.

    Research Areas: clinical outcomes, gender differences, biomarkers, pathophysiology, immune heterogeneity, Lyme disease

    Principal Investigator

    John Aucott, M.D.

    Department

    Medicine

  • Mark Donowitz Lab

    Research in the Mark Donowitz Lab is primarily focused on the development of drug therapy for diarrheal disorders, intestinal salt absorption and the proteins involved including their regulation, and the use of human enteroids to understand intestinal physiology and pathophysiology. We study two gene families initially recognized by this laboratory: mammalian Na/H exchangers and the subgroup of PDZ domain containing proteins present in the brush border of epithelial cells called NHERF family. A major finding is that NHE3 exists simultaneously in different sized complexes in the brush border, which change separately as part of signal transduction initiated by mimics of the digestive process. Relevance to the human intestine is being pursued using mini-human intestine made from Lgr5+ stems cells made from intestinal biopsies and measuring function via two-photon microscopy.

    Research Areas: gastrointestinal system, gastroenterology, pathophysiology, diarrhea, drugs, physiology

    Lab Website

    Principal Investigator

    Mark Donowitz, M.D.

    Department

    Medicine

  • Martin G. Pomper Lab

    Recent advances in molecular and cellular biology, the emergence of more sophisticated animal models of human disease and the development of sensitive, high-resolution imaging systems enable the study of pathophysiology noninvasively in unprecedented detail. The overall goal of our work is to develop new techniques and agents to study human disease through imaging. We concentrate on two areas, i.e., cancer and central nervous system processes. Our work extends from basic chemical and radiochemical synthesis to clinical translation.

    Research Areas: imaging, cancer

    Lab Website

    Principal Investigator

    Martin Pomper, M.D., Ph.D.

    Department

    Radiology

  • Robert H. Brown Lab

    Work in the Robert H. Brown Lab explores several topics within pulmonary physiology, with a long-term goal of understanding the structural changes in the lungs that lead to the pathophysiology of lung disease. Our core studies examine the structure-function relationship of pulmonary airways and vessels as well as their role in chronic obstructive pulmonary disease (COPD) and reactive airway disease. Recent research has involved studying the mechanisms and treatment of COPD progression, new methods for treating asthma, and lung inflation and airway hyperresponsiveness. We are also exploring the impact of HIV infection on the etiology of lung disease and the pathophysiologic consequences of lung distention.

    Research Areas: asthma, HIV, pulmonary physiology, lung disease, COPD, reactive airway disease

  • Seth Margolis Laboratory

    The Seth Margolis Laboratory studies the signaling pathways that regulate synapse formation during normal brain development to try to understand how, when these pathways go awry, human cognitive disorders develop.

    We use Ephexin5 to study the molecular pathways that regulate restriction of excitatory synapse formation and their relevance to the pathophysiology of Angelman syndrome.

    Research Areas: cognition, Angelman syndrome, human development, cellular signaling, synapse formation

    Principal Investigator

    Seth Margolis, Ph.D.

    Department

    Biological Chemistry

  • Sheng Wu Laboratory

    The Sheng Wu Laboratory studies the insulin/androgen receptor (AR) actions on the developmental and regulation of the reproductive and metabolic functions. We use multiple animal models (obesity, androgen implantation, and conditional knockout) to investigate the pathophysiology of polycystic ovarian syndrome (PCOS) and the developmental factors and their target tissues that contribute to PCOS manifestation.

    Research Areas: reproduction, insulin, polycystic ovarian syndrome, endocrinology, androgen receptor

    Principal Investigator

    Sheng Wu, M.Sc., Ph.D.

    Department

    Pediatrics

  • Steven Claypool Lab

    Research in the Claypool Lab is focused on defining how lipids and membrane proteins interact to establish and maintain normal mitochondrial function and how derangements in this complex relationship result in pathophysiology. We have demonstrated that yeast lacking tafazzin recapitulates all of the phospholipid abnormalities observed in human patients and many of the mitochondrial defects.

    Another major project in our lab focuses on the mitochondrial ADP/ATP carrier that is required for oxidative phosphorylation. Researchers are studying how these novel interactions help establish normal mitochondrial function, the biochemical details of these associations, and whether disturbances in these assemblies can contribute to mitochondrial dysfunction.

    Research Areas: biochemistry, proteomics, lipids, yeast, mitochondria, oxidative phosphorylation

    Lab Website

    Principal Investigator

    Steven Claypool, Ph.D.

    Department

    Physiology

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