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Research Lab Results for physiology

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  • Andrew Lane Lab

    The Lane laboratory is focused on understanding molecular mechanisms underlying chronic rhinosi...nusitis, particularly the pathogenesis of nasal polyps, as well as inflammation on the olfactory epithelium. Diverse techniques in molecular biology, immunology, and physiology are utilized to study epithelial cell innate immunity, olfactory loss, and response to viral infection. Ongoing work explores how epithelial cells of the sinuses and olfactory mucosa participate in the immune response and contribute to chronic inflammation. The lab creates and employs transgenic mouse models of chronic nasal/sinus inflammation to support research in this area. Collaborations are in place with the School of Public Health to explore mechanisms of anti-viral immunity in influenza and COVID-19. view more

    Research Areas: nasal polyps, immunology, COVID-19, olfaction, cell culture, transgenic mice, chronic rhinosinusitis, innate immunity, neuroscience, molecular biology
  • Cammarato Lab

    Lab Website
    Principal Investigator:
    Anthony Cammarato, Ph.D.
    Medicine

    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 performance and myopathic processes.
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    Research Areas: muscle development, genetics, myopathic processes, striated muscle biology, muscle function, myopathy, muscle physiology
  • Center for Epithelial Disorders

    Principal Investigator:
    Mark Donowitz, M.D.
    Medicine
    Physiology

    The Johns Hopkins Center for Epithelial Disorders focuses on research into the physiology and p...athophysiology of epithelial cells (cells that line the cavities and interior surfaces of the body) of the gastrointestinal (GI) tract, liver, pancreas and kidney. Specifically, the center’s research seeks to:

    -Understand the mechanisms regulating the activity of transport proteins (including channels) of epithelial cells
    Characterize the mechanisms by which polarity of epithelial cells are maintained
    -Investigate the mechanisms controlling transcription of epithelial-specific genes
    Understand the pathophysiological basis of GI and renal diseases that involve the preceding three components
    -The center also provides a framework for training fellows in gastroenterology and hepatology to become independent investigators.

    The center is funded primarily through individual investigator-initiated extramural research grant support from the National Institutes of Health (NIH) as well as multi-investigator grants including RO1, PO1, UO1 and R24.
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    Research Areas: gastroenterology, epithelial cells
  • Dwight Bergles Laboratory

    Lab Website
    Principal Investigator:
    Dwight Bergles, Ph.D.
    Neuroscience

    The Bergles Laboratory studies synaptic physiology, with an emphasis on glutamate transporters ...and glial involvement in neuronal signaling. We are interested in understanding the mechanisms by which neurons and glial cells interact to support normal communication in the nervous system. The lab studies glutamate transport physiology and function. Because glutamate transporters play a critical role in glutamate homeostasis, understanding the transporters' function is relevant to numerous neurological ailments, including stroke, epilepsy, and neurodegenerative diseases like amyotrophic lateral sclerosis (ALS). Other research in the laboratory focuses on signaling between neurons and glial cells at synapses. Understanding how neurons and cells communicate, may lead to new approaches for stimulating re-myelination following injury or disease. Additional research in the lab examines how a unique form of glia-to-neuron signaling in the cochlea influences auditory system development, whether defects in cell communication lead to certain hereditary forms of hearing impairment, and if similar mechanisms are related to sound-induced tinnitus. view more

    Research Areas: epilepsy, synaptic physiology, ALS, stroke, neuronal signaling, glutamate transport physiology and function, audiology, neuroscience, neurology, nervous system, molecular biology
  • Fu Lab

    Lab Website
    Principal Investigator:
    Dax Fu, Ph.D.
    Physiology

    The Fu Lab is a basic research lab that studies zinc transport, with a particular focus on whic...h step in the zinc transport process may be modulated and how. Dr. Fu's lab uses parallel cell biology and proteomic approaches to understand how these physiochemical principles are applied to mammalian zinc transporters and integrated to the physiology of pancreatic beta cells. This research has implications for understanding how zinc transport is related to diabetes and insulin intake. view more

    Research Areas: cell biology, proteomics, zinc, pancreatic cells, diabetes
  • Holland Lab

    Lab Website

    Research in the Holland Lab focuses on the molecular mechanisms that control accurate chromosom...e distribution and the role that mitotic errors play in human health and disease. We use a combination of chemical biology, biochemistry, cell biology and genetically engineered mice to study pathways involved in mitosis and their effect on cell and organism physiology. One of our major goals is to develop cell and animal-based models to study the role of cell-division defects in genome instability and tumorigenesis. view more

    Research Areas: cancer, genomics, molecular biology
  • Human Brain Physiology and Stimulation Lab

    Lab Website

    The Human Brain Physiology and Stimulation Laboratory studies the mechanisms of motor learning ...and develops interventions to modulate motor function in humans. The goal is to understand how the central nervous system controls and learns to perform motor actions in healthy individuals and in patients with neurological diseases such as stroke. Using this knowledge, we aim to develop strategies to enhance motor function in neurological patients.

    To accomplish these interests, we use different forms of non-invasive brain stimulation techniques, such as transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), as well as functional MRI and behavioral tasks.
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    Research Areas: motor learning, TMS, brain stimulation, neurologic rehabilitation, tDCS, stroke rehabilitation, stroke recovery
  • J. Hunter Young Lab

    Principal Investigator:
    Jeffery Young, M.D., M.H.S.
    Medicine

    Research in the J. Hunter Young Lab focuses on the genetic epidemiology and physiology of cardi...ovascular disease and its risk factors, especially hypertension, diabetes and obesity. Current activities include an observational study of hypertension among African Americans; a genetic epidemiology study of worldwide cardiovascular disease susceptibility patterns; and several population-based observational studies of cardiovascular and renal disease. A recent focus group study found that changes in housing and city policies might lead to improved environmental health conditions for public housing residents. view more

    Research Areas: epidemiology, kidney diseases, obesity, hypertension, diabetes, genomics, physiology, cardiovascular diseases
  • James Pekar Lab

    Lab Website

    How do we see, hear, and think? More specifically, how can we study living people to understand... how the brain sees, hears, and thinks? Recently, magnetic resonance imaging (MRI), a powerful anatomical imaging technique widely used for clinical diagnosis, was further developed into a tool for probing brain function. By sensitizing magnetic resonance images to the changes in blood oxygenation that occur when regions of the brain are highly active, we can make "movies" that reveal the brain at work. Dr. Pekar works on the development and application of this MRI technology.

    Dr. Pekar is a biophysicist who uses a variety of magnetic resonance techniques to study brain physiology and function. Dr. Pekar serves as Manager of the F.M. Kirby Research Center for Functional Brain Imaging, a research resource where imaging scientists and neuroscientists collaborate to study brain function using unique state-of-the-art techniques in a safe comfortable environment, to further develop such techniques, and to provide training and education. Dr. Pekar works with center staff to serve the center's users and to keep the center on the leading edge of technology.
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    Research Areas: magnetic resonance, functional magnetic resonance imaging, radiology
  • Joel Pomerantz Laboratory

    The Pomerantz Laboratory studies the molecular machinery used by cells to interpret extracellul...ar signals and transduce them to the nucleus to affect changes in gene expression. The accurate response to extracellular signals results in a cell's decision to proliferate, differentiate or die, and it's critical for normal development and physiology. The dysregulation of this machinery underlies the unwarranted expansion or destruction of cell numbers that occurs in human diseases like cancer, autoimmunity, hyperinflammatory states and neurodegenerative disease.

    Current studies in the lab focus on signaling pathways that are important in innate immunity, adaptive immunity and cancer, with particular focus on pathways that regulate the activity of the pleiotropic transcription factor NF-kB.
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    Research Areas: immunology, neurodegenerative disorders, cancer, autoimmune, hyperinflammatory states, molecular biology
  • Lamichhane Lab

    Lab Website
    Principal Investigator:
    Gyanu Lamichhane, Ph.D.
    Medicine

    Our research focuses on the biology of the peptidoglycan of Mycobacterium tuberculosis, the org...anism that causes tuberculosis, and Mycobacteroides abscessus, a related bacterium that causes opportunistic infections. We study basic mechanisms associated with peptidoglycan physiology but with an intent to leverage our findings to develop tools that will be useful in the clinic to treat mycobacterial infections.

    Peptidoglycan is the exoskeleton of bacteria that not only provides structural rigidity and cell shape but also several vital physiological functions. Breaching this structure is often lethal to bacteria. We are exploring fundamental mechanisms by which bacteria synthesize and preserve their peptidoglycan. Although our lab uses genetic, biochemical and biophysical approaches to study the peptidoglycan, we pursue questions irrespective of the expertise required to answer those questions. It is through these studies that we identified synergy between two beta-lactam antibiotics against select mycobacteria.
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    Research Areas: biochemistry, infectious disease, Mycobacterium tuberculosis, genomics, tuberculosis, RNA
  • Michael Wolfgang Laboratory

    The Wolfgang Laboratory is interested in understanding the metabolic properties of neurons and ...glia at a mechanistic level in situ. Some of the most interesting, enigmatic and understudied cells in metabolic biochemistry are those of the nervous system. Defects in these pathways can lead to devastating neurological disease. Conversely, altering the metabolic properties of the nervous system can have surprisingly beneficial effects on the progression of some diseases. However, the mechanisms of these interactions are largely unknown.

    We use biochemical and molecular genetic techniques to study the molecular mechanisms that the nervous system uses to sense and respond to metabolic cues. We seek to understand the neurometabolic regulation of behavior and physiology in obesity, diabetes and neurological disease.

    Current areas of study include deconstructing neurometabolic pathways to understand the biochemistry of the nervous system and how these metabolic pathways impact animal behavior and physiology, metabolic heterogeneity and the evolution of metabolic adaptation.
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    Research Areas: metabolic biochemistry, obesity, diabetes, genomics, neurology, nervous system, molecular biology
  • Neurosurgery Spinal Research Lab

    Lab Website

    The Spinal Research Laboratory is the world’s leading research lab dedicated to animal models o...f spinal conditions. Our goal is to improve care and surgical outcomes for patients with spinal problems. Using novel models and techniques, our investigators have created new ways to study tumors of the spinal cord and spinal column, spinal paralysis and spinal fusion physiology. In addition, they consistently test spinal devices for effectiveness. view more

    Research Areas: spinal tumors, spine surgery, spine
  • Nicholas Dalesio Lab

    Research in the Nicholas Dalesio Lab is currently examining pre-surgical predictors of post-sur...gical respiratory complications in children with obstructive sleep apnea and sleep-disordered breathing; the impact of anesthesia and pharmacological agents on upper airway physiology; and techniques for pediatric airway imaging. view more

    Research Areas: children, respiratory system, obstructive sleep apnea, anesthesia, pediatrics, sleep disorders
  • Ocular Motor Physiology Laboratory

    Lab Website

    Our research is directed toward how the brain controls the movements of the eyes (including eye... movements induced by head motion) using studies in normal human beings, patients and experimental animals. The focus is on mechanisms underlying adaptive ocular motor control. More specifically, what are mechanisms by which the brain learns to cope with the changes associated with normal development and aging as well as the damage associated with disease and trauma? How does the brain keep its eye movement reflexes properly calibrated? Our research strategy is to make accurate, quantitative measures of eye movements in response to precisely controlled stimuli and then use the analytical techniques of the control systems engineer to interpret the findings.

    Research areas: 1) learning and compensation for vestibular disturbances that occur either within the labyrinth or more centrally within the brain, 2) the mechanisms by which the brain maintains correct alignment of the eyes to prevent diplopia and strabismus, and 3) the role of ocular proprioception in localizing objects in space for accurate eye-hand coordination.
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    Research Areas: diplopia, Labyrinth, eye movement, strabismus, vestibular
  • O'Rourke Lab

    Lab Website
    Principal Investigator:
    Brian O'Rourke, Ph.D.
    Medicine

    The O’Rourke Lab uses an integrated approach to study the biophysics and physiology of cardiac ...cells in normal and diseased states.

    Research in our lab has incorporated mitochondrial energetics, Ca2+ dynamics, and electrophysiology to provide tools for studying how defective function of one component of the cell can lead to catastrophic effects on whole cell and whole organ function. By understanding the links between Ca2+, electrical excitability and energy production, we hope to understand the cellular basis of cardiac arrhythmias, ischemia-reperfusion injury, and sudden death.

    We use state-of-the-art techniques, including single-channel and whole-cell patch clamp, microfluorimetry, conventional and two-photon fluorescence imaging, and molecular biology to study the structure and function of single proteins to the intact muscle. Experimental results are compared with simulations of computational models in order to understand the findings in the context of the system as a whole.

    Ongoing studies in our lab are focused on identifying the specific molecular targets modified by oxidative or ischemic stress and how they affect mitochondrial and whole heart function.

    The motivation for all of the work is to understand
    • how the molecular details of the heart cell work together to maintain function and
    • how the synchronization of the parts can go wrong

    Rational strategies can then be devised to correct dysfunction during the progression of disease through a comprehensive understanding of basic mechanisms.

    Brian O’Rourke, PhD, is a professor in the Division of Cardiology and Vice Chair of Basic and Translational Research, Department of Medicine, at the Johns Hopkins University.
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    Research Areas: biophysics, ischemia-reperfusion injury, imaging, electrophysiology, cardiovascular, arrhythmia, physiology, sudden cardiac death, molecular biology, cardiac cells
  • Peter van Zijl Laboratory

    Lab Website

    The Peter van Zijl Laboratory focuses on developing new methodologies for using MRI and magneti...c resonance spectroscopy (MRS) to study brain function and physiology. In addition, we are working to understand the basic mechanisms of the MRI signal changes measured during functional MRI (fMRI) tests of the brain. We are also mapping the wiring of the brain (axonal connections between the brains functional regions) and designing new technologies for MRI to follow where cells are migrating and when genes are expressed. A more recent interest is the development of bioorganic biodegradable MRI contrast agents. Our ultimate goal is to transform these technologies into fast methods that are compatible with the time available for multi-modal clinical diagnosis using MRI. view more

    Research Areas: brain, magnetic resonance spectroscopy, MRI
  • Platelet Physiology Research Lab

    Principal Investigator:
    Marlene Williams, M.D.
    Medicine

    Dr. Williams' research focuses on platelet physiology particularly as it relates to acute coron...ary syndromes and depression. Her laboratory specifically examines platelet aggregation, flow cytometric analysis to measure platelet activation, platelet luminescence as a measure of the platelet release reaction, many Elisa preparations in order to measure platelet function, platelet genotyping to determine the presence of certain platelet polymorphisms, and various other assays to distinguish mechanisms of platelet dysfunction. The goal for her cardiovascular platelet laboratory is to identify the etiology of platelet dysfunction in many disease states and apply methods that may improve this dysfunction that can eventually be translated to therapies for patients with cardiovascular disease. Scientific techniques performed in the lab include: flow cytometric analysis, platelet microparticle identification, and protein immunoprecipitation among other techniques. view more

    Research Areas: platelets, Platelet drug response, Platelet Flow cytometric analysis, Platelet Aggregation
  • Pluznick Lab

    Lab Website
    Principal Investigator:
    Jennifer Pluznick, Ph.D.
    Physiology

    The Pluznick Lab is interested in the role that chemosensation plays in regulating physiologica...l processes, particularly in the kidney and the cardiovascular system. We have found that sensory receptors (olfactory receptors, taste receptors, and other G-protein coupled receptors) are expressed in the kidney and in blood vessels, and that individual receptors play functional roles in whole-animal physiology. We are currently working to identify the full complement of sensory receptors found in the kidney, and are working to understand the role that each receptor plays in whole-animal physiology by using a variety of in vitro (receptor localization, ligand screening) and in vivo (whole-animal physiology) techniques. view more

    Research Areas: sensory receptors, cardiovascular, physiology, chemosensation, renal
  • Robert H. Brown Lab

    Lab Website

    Work in the Robert H. Brown Lab explores several topics within pulmonary physiology, with a lon...g-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. view more

    Research Areas: asthma, HIV, pulmonary physiology, lung disease, COPD, reactive airway disease
  • Ronald Schnaar Lab

    The Ronald Schnaar Lab is involved in the rapidly expanding field of glycobiology, which studie...s cell surface glycans, lectins, and their roles in cell physiology.

    Current projects in our lab study include (1) Glycans and glycan-binding proteins in inflammatory lung diseases, (2) Ganglioside function in the brain, and (3) HIV-Tat and HIV-associated neurocognitive disorders.
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    Research Areas: cell physiology, HIV, neurocognitive disorders, glycobiology
  • Sensorimotor Adaptation - Vestibular and Oculomotor

    Research in the Sensorimotor Adaptation--Vestibular and Oculomotor group focuses on sensorimoto...r adaptation to space flight and fractal statistics in physiology. Our projects aim to understand sensory processing for motor control with an emphasis on adaptive capabilities and mathematical modeling. view more

    Research Areas: sensorimotor adaptation, physiology, space flight, fractal statistics
  • Shaoyong Yu Lab

    Principal Investigator:
    Shaoyong Yu, M.D.
    Medicine

    The Yu Lab does basic and translational research on Sensory physiology and disorders of the gas...trointestinal tract.

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    Research Areas: Sensory physiology and disorders of the gastrointestinal tract
  • Sleep Apnea Pathogenesis

    Lab Website
    Principal Investigator:
    Vsevolod Polotsky, M.D., Ph.D.
    Medicine

    Our research laboratory is staffed by a dedicated and experienced team of sleep scientists, fel...lows, technicians, engineers, and students. Currently, we are focused on the following areas:

    -Novel treatments for sleep apnea using electrical and nerve stimulation and chemogenetic techniques

    -Cardiovascular and metabolic effects of sleep apnea and hypoxia

    -Leptin and its impact on breathing and cardiovascular physiology

    -Sleep disordered breathing at high altitude

    -Dietary impacts on asthma
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    Research Areas: hypoxia, sleep apnea
  • Swallowing Investigation in Physiology (SIP) Lab

    Lab Website

    The SIP Lab studies the mechanisms of normal and disordered swallowing. The team conducts resea...rch in the areas of swallowing rehabilitation after stroke, effects of aging on swallowing and measurement of swallowing physiology. view more

    Research Areas: deglutition, swallowing disorders, dysphagia, neurophysiology, stroke, aging, 320-row area detector, MRI, swallowing, physiology, videofluoroscopy, rehabilitation
  • Varsha Singh

    Principal Investigator:
    Varsha Singh, Ph.D.
    Medicine

    The Singh Lab does basic and translational research on intestinal ion transport, cellular physi...ology, and membrane trafficking in diabetic disorders.

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    Research Areas: Intestinal ion transport, cellular physiology, membrane trafficking in diabetic disorders
  • Welling Laboratory

    Lab Website
    Principal Investigator:
    Paul Welling, M.D.
    Medicine

    Dr. Paul A. Welling and his research team explore the genetic and molecular underpinnings of el...ectrolyte physiology, potassium balance disorders, hypertension and kidney disease. A major thrust of current research activity is devoted to understanding how faulty genes and environmental stresses drive hypertension. The research is providing new insights into how the Western diet triggers deleterious responses of salt-sensitivity genes. The Welling laboratory employs a multidisciplinary approach, spanning from gene discovery, molecular biology, genetically engineered mouse models to translational studies in humans. By illuminating pathophysiological mechanisms and translating the discoveries to develop more effective diagnostic and therapeutic strategies, Welling’s group is striving to improve the health of at-risk individuals and patients with kidney disease and hypertension.



    Dr. Welling is the Joseph S. and Esther Hander Professor of Laboratory Research in Nephrology. He has been continuously funded by the National Institutes of Health for over 25 years. Currently he serves as Coordinator of a Global Research Network, funded by the LeDucq Foundation. More about his research can be found at https://www.wellinglab.com/
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    Research Areas: genetic and molecular underpinnings of electrolyte physiology, kidney diseases, hypertension, potassium balance disorders
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