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Research Lab Results for gastrointestinal

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  • 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
  • Center for Nanomedicine

    Lab Website
    Principal Investigator:
    Justin Hanes, Ph.D.
    Ophthalmology

    The Center for Nanomedicine engineers drug and gene delivery technologies that have significant... implications for the prevention, treatment and cure of many major diseases facing the world today. Specifically, we are focusing on the eye, central nervous system, respiratory system, women's health, gastrointestinal system, cancer, and inflammation.

    We are a unique translational nanotechnology effort located that brings together engineers, scientists and clinicians working under one roof on translation of novel drug and gene delivery technologies
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    Research Areas: central nervous system, respiratory system, nanotechnology, cancer, drugs, women's health, inflammation, eye, gastrointestinal
  • Conte Digestive Diseases Basic and Translational Research Core Center

    Lab Website
    Principal Investigator:
    Mark Donowitz, M.D.
    Medicine

    Hopkins Conte Digestive Diseases Basic and Translational Research Core Center is an NIH/NIDDK f...unded, institutionally supported center that has as its mission, to make gastrointestinal studies at Hopkins as outstanding as possible, by encouraging helping develop interactions between Hopkins basic and translational investigators.

    The Center consists of an Administrative Core, four scientific Cores, an Enrichment Program, a Pilot and Feasibility Project Program, and services a Research Base of ~60 Hopkins faculty investigators.

    Co-Director, Mark Donowitz, MD
    Co-Director, Svetlana Lutsenko, PhD
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    Research Areas: gastroenterology
  • Craig W. Hendrix Lab

    Principal Investigator:
    Craig W. Hendrix, M.D.
    Medicine

    Research in the Craig W. Hendrix Lab concentrates on the chemoprevention of HIV infection, clin...ical pharmacology of antiviral drugs, drug interactions, and oral, topical and injectable HIV microbicide development. Our lab conducts small, intensive sampling studies of PK and PD of drugs for HIV prevention with a focus on developing methods to better understand HIV and drug distribution in the male genital tract, female genital tract and lower gastrointestinal tract. We also support numerous HIV pre-exposure prophylaxis development studies from phase I to phase III, largely as leader of the Pharmacology Core Laboratory of both the Microbicide Trial Network and HIV Prevention Trials Network. view more

    Research Areas: antiretroviral therapies, infectious disease, HIV, drugs
  • Florin Selaru Lab

    Principal Investigator:
    Florin Selaru, M.D.
    Medicine
    Oncology

    Research interests in the Florin Selaru Lab comprise the molecular changes associated with the ...transition from inflammatory states in the GI tract (colon, stomach, biliary tree) to frank cancers. In addition, our current research—funded by the AGA, FAMRI and the Broad Foundation—works to further the understanding of cancer development and progression in the gastrointestinal tract. view more

    Research Areas: gastroenterology, cancer, inflammation, molecular biology
  • GI Biomarkers Laboratory

    Principal Investigator:
    Stephen Meltzer, M.D.
    Medicine
    Oncology

    The GI Biomarkers Laboratory studies gastrointestinal cancer and pre-cancer biogenesis and biom...arkers. The lab is led by Dr. Stephen Meltzer, who is known for his research in the molecular pathobiology of gastrointestinal malignancy and premalignancy. Research in the lab has led to several groundbreaking genomic, epigenomic and bioinformatic studies of esophageal and colonic neoplasms, shifting the gastrointestinal research paradaigm toward genome-wide approaches. view more

    Research Areas: gastrointestinal system, translational research in Barrett’s esophagus-associated neoplastic progression, Molecular pathophysiology, biomarkers, cancer, epigenetics, genomics, bioinformatics, biogenesis
  • GI Early Detection Biomarkers Lab

    Principal Investigator:
    Stephen Meltzer, M.D.
    Medicine

    Dr. Meltzer is an internationally renowned leader in the molecular pathobiology of gastrointest...inal malignancy and premalignancy. He invented molecular methods to detect loss of heterozygosity in tiny biopsies, triggering an avalanche of research on precancerous lesions. He was the first to comprehensively study coding region microsatellite instability, leading to the identification of several important tumor suppressor genes. He performed several groundbreaking genomic, epigenomic and bioinformatic studies of esophageal and colonic neoplasms, shifting the GI research paradigm toward genome-wide approaches. He directed an ambitious nationwide validation study of DNA methylation-based biomarkers for the prediction of neoplastic progression in Barrett’s esophagus.

    Dr. Meltzer founded and led the Aerodigestive Cancer and Biomarker Interdisciplinary Programs at the University of Maryland, also becoming associate director for core sciences at that school’s Cancer Center. He currently holds an endowed professorship and is the director of GI biomarker research at Johns Hopkins.

    The laboratory group focuses its efforts on the molecular genetics of gastrointestinal cancers and premalignant lesions, as well as on translational research to improve early detection, prognostic evaluation, and treatment of these conditions. Below, some examples of this work are described.
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    Research Areas: gastrointestinal cancer, gastrointestinal
  • Saowanee Ngamruengphong Lab

    Principal Investigator:
    Saowanee Ngamruengphong, M.D.
    Medicine

    Research in the Saowanee Ngamruengphong Lab focuses on methods for diagnosing and managing gast...rointestinal conditions, including premalignant and malignant lesions of the gastrointestinal tract, esophageal cancer, colon polyps, and biliary and pancreatic disease. Our most recent work includes investigating a novel hybrid technique for closure of refractory gastrocutaneous fistula. We also conducted an international multicenter study that compared endoscopic ultrasound-guided pancreatic duct drainage with enteroscopy-assisted endoscopic retrograde pancreatography following Whipple surgery. view more

    Research Areas: Endoscopic mucosal resection/endoscopic submucosal dissection, colon polyps, cancer, endoscopy, pancreatic disease, gastric cancer, ultrasound, gastrointestinal
  • 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
  • The Hackam Lab for Pediatric Surgical, Translational and Regenerative Medicine

    Lab Website
    Principal Investigator:
    David Hackam, M.D., Ph.D.
    Pediatrics
    Surgery

    David Hackam’s laboratory focuses on necrotizing enterocolitis (NEC), a devastating disease of ...premature infants and the leading cause of death and disability from gastrointestinal disease in newborns.

    The disease strikes acutely and without warning, causing sudden death of the small and large intestines. In severe cases, tiny patients with the disease are either dying or dead from overwhelming sepsis within 24 hours. Surgical treatment to remove most of the affected gut results in lifelong short gut (short bowel) syndrome.

    The Hackam Lab has identified a critical role for the innate immune receptor toll-like receptor 4 (TLR4) in the pathogenesis of necrotizing enterocolitis. The lab has shown that TLR4 regulates the development of the disease by tipping the balance between injury and repair in the stressed intestine of the premature infant. Developing an Artificial Intestine A key goal is to create, in the laboratory, new intestines made from patients’ own cells, which can then be implanted into the patient to restore normal digestive function. This innovative design could transform child development and quality of life in necrotizing enterocolitis survivors without the risks of conventional donor transplant.
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    Research Areas: necrotizing enterocolitis, gut inflammation, stem cell biology, premature infants, TLR4
  • Zsuzsanna McMahan Lab

    Lab Website
    Principal Investigator:
    Zsuzsanna McMahan, M.D., M.H.S.
    Medicine

    The Zsuzsanna McMahan Lab conducts translational research that seeks to identify the novel anti...gens in scleroderma and to define the target tissue in this disease. We are conducting two active clinical research trials, including one that studies skin biopsy specimens as biomarkers of scleroderma and the response to mycophenolate mofetil (MMF or Cellcept). The other study is a gastrointestinal involvement registry that follows patients who are experiencing GERD, small bowel bacterial overgrowth, constipation, fecal incontinence and gastroparesis to see if there is improvement in symptoms after a change in treatment is implemented. view more

    Research Areas: gastrointestinal system, rheumatology, biomarkers, scleroderma, antigens, mycophenolate mofetil
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