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Dr. Haughey directs a disease-oriented research program that address questions in basic neurobiology, and clinical neurology. The primary research interests of the laboratory are:
1. To identify biomarkers markers for neurodegenerative diseases including HIV-Associated Neurocognitive Disorders, Multiple Sclerosis, and Alzheimer’s disease. In these studies, blood and cerebral spinal fluid samples obtained from ongoing clinical studies are analyzed for metabolic profiles through a variety of biochemical, mass spectrometry and bioinformatic techniques. These biomarkers can then be used in the diagnosis of disease, as prognostic indicators to predict disease trajectory, or as surrogate markers to track the effectiveness of disease modifying interventions.
2. To better understand how the lipid components of neuronal, and glial membranes interact with proteins to regulate signal transduction associated with differentiation, motility, inflammatory signaling, survival, and neuronal excitab...ility.
3. To understand how extracellular vesicles (exosomes) released from brain resident cells regulate neuronal excitability, neural network activity, and peripheral immune responses to central nervous system damage and infections.
4. To develop small molecule therapeutics that regulate lipid metabolism as a neuroprotective and restorative strategy for neurodegenerative conditions. view more
Johns Hopkins Neuromyelitis Optica (NMO) Clinic
The Johns Hopkins NMO Clinic launched in July 2009 and now follows 210 patients with NMO or NMO Spectrum Disorder (last count March 31, 2014), along with 81 patients with idiopathic transverse myelitis, 45 patients with recurrent transverse myeltis and small handful with recurrent optic neuritis. We also follow a few patients with multiple sclerosis who thought they might have NMO.
Until 2005, 90% of NMO patients were misdiagnosed as multiple sclerosis and treated with medications that did not help. We've become much better at identifying NMO and treating it correctly. Whereas 30% of patients used to be blind or paralyzed within 5 years of diagnosis, now > 70% of our patients are remission without any progression of disease using safe medications.
Dr. Michael Levy directs the NMO Clinic and sees NMO patients in clinic every other Monday. He completed the MD/PhD program at Baylor College of Medicine in Houston, TX (where he grew up), and trained in the neurology residency and fe...llowship programs at Johns Hopkins before joining the faculty in 2009. In addition seeing patients with NMO, Dr. Levy also runs clinical trials in NMO (see the clinical trials page) and runs a basic science laboratory devoted to the finding the cure to NMO.
Maureen Mealy, RN, is the program director for the Johns Hopkins Transverse Myelitis Center and the NMO Clinic. Maureen graduated from the University of Maryland and obtained her nursing degree from the Johns Hopkins School of Nursing. She has 7 years of experience in neurocritical care nursing and 6 years of experience working with patients with NMO.
Regina Brock-Simmons, RN, is the clinical coordinator for all of the trials in NMO. While Regina is relatively new to NMO, she has 10 years of experience running clinical trials at Johns Hopkins and is also trained in phlebotomy and infusions. view more
Michael Kornberg Lab
Our laboratory conducts basic and translational research aimed at better understanding the pathogenesis of multiple sclerosis (MS) and the role of the immune system in CNS disease, particularly the processes that drive progressive disability such as neurodegeneration and remyelination failure. We currently have three parallel research programs: 1. Metabolism as a modulator of MS: We are studying how basic metabolic pathways regulate the immune system and how these pathways might be exploited to protect neurons and myelin-forming oligodendrocytes from injury. 2. Identifying pathways by which nitric oxide (NO) and other free radicals cause neuronal and axonal damage. Our lab is identifying specific signaling pathways initiated by NO and other free radicals that can be targeted by drugs to produce neuroprotection. 3. Modulating the innate immune system in MS: In collaboration with others at Johns Hopkins, we are studying ways to enhance the reparative functions of microglia while preventi...ng maladaptive responses. This work has identified bryostatin-1 as a potential drug that may be re-purposed for this task. view more
Abbey J. Hughes, Ph.D., and Meghan Beier, Ph.D., are clinical psychologists, co-investigators and grant-funded clinical researchers specializing in neurorehabilitation psychology and multiple sclerosis. Dr. Hughes' research focuses on health behaviors and their impact on cognitive dysfunction in people with multiple sclerosis. Dr. Beier's research focuses on characterizing emotional and cognitive symptoms common among people with MS, refining neuropsychological assessment techniques, and developing interventions to ameliorate or slow MS-related cognitive decline.
The research activities of the Neuroimmunopathology Laboratory focus on studies of immunological and molecular mechanisms involved in the pathogenesis of neurological disorders. Our main areas of research include studies of neurological complications of HIV infection and AIDS, multiple sclerosis, transverse myelitis, autism and epilepsy. We seek to explore and identify immunopathological mechanisms associated with neurological disease that may be the target of potential therapeutic interventions. The laboratory collaborates with other researchers and laboratories at Johns Hopkins and other institutions in projects related with studies of the interaction between the immune and central nervous systems in pathological processes leading to neurological dysfunction.
Effective immune responses are critical for control of a variety of infectious disease including bacterial, viral and protozoan infections as well as in protection from development of tumors. Central to the development of an effective immune response is the T lymphocyte which, as part of the adaptive immune system, is central in achieving sterilization and long lasting immunity. While the normal immune responses is tightly regulated there are also notable defects leading to pathologic diseases. Inactivity of tumor antigen-specific T cells, either by suppression or passive ignorance allows tumors to grow and eventually actively suppress the immune response. Conversely, hyperactivation of antigen-specific T cells to self antigens is the underlying basis for many autoimmune diseases including: multiple sclerosis; arthritis; and diabetes. Secondary to their central role in a wide variety of physiologic and pathophysiologic responses my lab takes a broad-based approach to studying T cell re...sponses. view more
The Calabresi Lab is located in the department of Neurology at the Johns Hopkins University School of Medicine. Our group investigates why remyelination occasionally fails following central nervous system demyelination in diseases like multiple sclerosis. Our primary focus is on discovering the role of t-cells in promoting or inhibiting myelination by the endogenous glial cells.