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Articles 1 - 5 of 5
Full-Text Articles in Medicine and Health Sciences
Smooth Muscle-Specific Myosin Phosphatase Target Subunit 1 (Mypt1): An Important Piece Of The Puzzle., Satish Rattan
Smooth Muscle-Specific Myosin Phosphatase Target Subunit 1 (Mypt1): An Important Piece Of The Puzzle., Satish Rattan
Division of Gastroenterology and Hepatology Faculty Papers
Dear Sir:
We have read with great interest a recent article by Dr. He et al. in the June issue of Gastroenterology.1 The studies provide strong evidence in favor of the concept that smooth muscle–specific myosin phosphatase target subunit 1 (MYPT1) of myosin light chain phosphatase (MLCP) plays a critical role in the agonist-induced contraction/relaxation of the smooth muscle. This was shown in their studies using animals with knocked out MYPT1-/-. The investigators employed the Cre-loxP system in which they used the promoter region and exon 1 of Mypt1 flanked by 2 loxP sites …
Efficacy And Safety Of Infliximab In Older Inflammatory Bowel Disease Patients, Christina Cress Lindenmeyer, Md, Stephanie M. Moleski, Md, Maureen P. Whitsett, Med., Patricia L. Kozuch, Md
Efficacy And Safety Of Infliximab In Older Inflammatory Bowel Disease Patients, Christina Cress Lindenmeyer, Md, Stephanie M. Moleski, Md, Maureen P. Whitsett, Med., Patricia L. Kozuch, Md
Division of Gastroenterology and Hepatology Faculty Papers
Background:
The limited data regarding treatment of inflammatory bowel disease (IBD) with anti-tumor necrosis factor antibodies in older patients suggest equal efficacy but higher morbidity and mortality compared to younger patients. This retrospective case control study aims to clarify the efficacy and safety of infliximab (IFX) in older IBD patients.
Occupational Exposure To Hepatitis C Virus: Early T-Cell Responses In The Absence Of Seroconversion In A Longitudinal Cohort Study., Theo Heller, Jens Martin Werner, Fareed Rahman, Eishiro Mizukoshi, Yuji Sobao, Ann Marie Gordon, Arlene Sheets, Averell H. Sherker, Ellen Kessler, Kathleen S. Bean, Steven K. Herrine, M'Lou Stevens, James Schmitt, Barbara Rehermann
Occupational Exposure To Hepatitis C Virus: Early T-Cell Responses In The Absence Of Seroconversion In A Longitudinal Cohort Study., Theo Heller, Jens Martin Werner, Fareed Rahman, Eishiro Mizukoshi, Yuji Sobao, Ann Marie Gordon, Arlene Sheets, Averell H. Sherker, Ellen Kessler, Kathleen S. Bean, Steven K. Herrine, M'Lou Stevens, James Schmitt, Barbara Rehermann
Division of Gastroenterology and Hepatology Faculty Papers
BACKGROUND: T-cell responses have been described in seronegative patients who test negative for hepatitis C virus (HCV) RNA despite frequent HCV exposure. However, the cross-sectional design of those studies did not clarify whether T cells were indeed induced by low-level HCV exposure without seroconversion or whether they resulted from regular acute infection with subsequent antibody loss.
METHODS: Over a 10-year period, our longitudinal study recruited 72 healthcare workers with documented HCV exposure. We studied viremia and antibody and T-cell responses longitudinally for 6 months.
RESULTS: All healthcare workers remained negative for HCV RNA and antibodies. However, 48% developed proliferative T-cell …
A Multicenter, Prospective, Randomized Comparison Of A Novel Signal Transmission Capsule Endoscope To An Existing Capsule Endoscope., Eric H Choi, Klaus Mergener, Carol Semrad, Laurel Fisher, David R Cave, Milan Dodig, Carol Burke, Jonathan A Leighton, David Kastenberg, Peter Simpson, James Sul, Kanishka Bhattacharya, Roger Charles, Lauren Gerson, Luke Weber, Glenn Eisen, Warren Reidel, John J Vargo, Jamile Wakim-Fleming, Simon K Lo
A Multicenter, Prospective, Randomized Comparison Of A Novel Signal Transmission Capsule Endoscope To An Existing Capsule Endoscope., Eric H Choi, Klaus Mergener, Carol Semrad, Laurel Fisher, David R Cave, Milan Dodig, Carol Burke, Jonathan A Leighton, David Kastenberg, Peter Simpson, James Sul, Kanishka Bhattacharya, Roger Charles, Lauren Gerson, Luke Weber, Glenn Eisen, Warren Reidel, John J Vargo, Jamile Wakim-Fleming, Simon K Lo
Division of Gastroenterology and Hepatology Faculty Papers
BACKGROUND: MiroCam, a capsule endoscope, uses a novel transmission technology, electric-field propagation, which uses the human body as a conduction medium for data transmission.
OBJECTIVE: To compare the ability of the MiroCam (MC) and PillCam (PC) to identify sources of obscure GI bleeding (OGIB).
DESIGN: Prospective, multicenter, comparative study.
SETTING: Six academic hospitals.
PATIENTS: A total of 105 patients with OGIB.
INTERVENTION: Patients ingested both the MC and PC capsules sequentially in a randomized fashion.
MAIN OUTCOME MEASUREMENTS: Concordance of rates in identifying a source of OGIB, operational times, and rates of complete small-bowel examination.
RESULTS: Data analysis resulted in …
A Multicenter, Prospective Study Of A New Fully Covered Expandable Metal Biliary Stent For The Palliative Treatment Of Malignant Bile Duct Obstruction., Bret T Petersen, Michel Kahaleh, Richard A Kozarek, David E. Loren, Kapil Gupta, Thomas E. Kowalski, Martin Freeman, Yang K Chen, Malcolm S Branch, Steven Edmundowicz, Michael Gluck, Kenneth Binmoeller, Todd H Baron, Raj J Shah, Timothy Kinney, William Ross, Paul Jowell, David Carr-Locke
A Multicenter, Prospective Study Of A New Fully Covered Expandable Metal Biliary Stent For The Palliative Treatment Of Malignant Bile Duct Obstruction., Bret T Petersen, Michel Kahaleh, Richard A Kozarek, David E. Loren, Kapil Gupta, Thomas E. Kowalski, Martin Freeman, Yang K Chen, Malcolm S Branch, Steven Edmundowicz, Michael Gluck, Kenneth Binmoeller, Todd H Baron, Raj J Shah, Timothy Kinney, William Ross, Paul Jowell, David Carr-Locke
Division of Gastroenterology and Hepatology Faculty Papers
Background and Study Aims. Endoscopic placement of self-expanding metal stents (SEMSs) is indicated for palliation of inoperable malignant biliary obstruction. A fully covered biliary SEMS (WallFlex Biliary RX Boston Scientific, Natick, USA) was assessed for palliation of extrahepatic malignant biliary obstruction. Patients and Methods. 58 patients were included in this prospective, multicenter series conducted under an FDA-approved IDE. Main outcome measurements included (1) absence of stent occlusion within six months or until death, whichever occurred first and (2) technical success, need for reintervention, bilirubin levels, stent patency, time to stent occlusion, and adverse events. Results. Technical success was achieved in …