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Gastroenterology Commons

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Full-Text Articles in Gastroenterology

The Trial Of Calcium And Vitamin D For The Prevention Of Colorectal Adenomas, John A. Baron, Elizabeth L. Barry, Leila A. Mott, Judy R. Rees Oct 2015

The Trial Of Calcium And Vitamin D For The Prevention Of Colorectal Adenomas, John A. Baron, Elizabeth L. Barry, Leila A. Mott, Judy R. Rees

Dartmouth Scholarship

BACKGROUND Epidemiologic and preclinical data suggest that higher intake and serum levels of vitamin D and higher intake of calcium reduce the risk of colorectal neoplasia. To further study the chemopreventive potential of these nutrients, we conducted a randomized, double-blind, placebo-controlled trial of supplementation with vitamin D, calcium, or both for the prevention of colorectal adenomas. METHODS We recruited patients with recently diagnosed adenomas and no known colorectal polyps remaining after complete colonoscopy. We randomly assigned 2259 participants to receive daily vitamin D3 (1000 IU), calcium as carbonate (1200 mg), both, or neither in a partial 2Å~2 factorial design. Women …


Site-Specific Immunomodulator: A Novel Treatment For Crohn's Disease, Brian Bressler, Kevin P. Bethel, Ralf Kleef, Sophie L. Reynolds, Simon Sutcliffe, David W. Mullins, Hal Gunn Apr 2015

Site-Specific Immunomodulator: A Novel Treatment For Crohn's Disease, Brian Bressler, Kevin P. Bethel, Ralf Kleef, Sophie L. Reynolds, Simon Sutcliffe, David W. Mullins, Hal Gunn

Dartmouth Scholarship

We investigated the mechanism of action, safety, and efficacy of the Site-Specific Immunomodulator (SSI) QBECO, a novel immunotherapy for Crohn’s disease (CD). Using human monocytic THP-1 cells, we demonstrate that SSI QBECO (derived from the common colon bacteria E. coli) activates macrophages to an M1 phenotype (associated with enhanced capacity to eliminate bacteria and activate innate immune responses). We assessed SSI QBECO in a compassionate use protocol of ten adult patients with active CD. Patients with moderate to severe clinical symptoms receiving conventional CD treatments and/or complementary therapies were included, except patients receiving anti-TNF medications. SSI QBECO was self-administered subcutaneously …


Total Pancreatectomy With Islet Autologous Transplantation: The Cure For Chronic Pancreatitis?, Samuel J. Kesseli, Kerrington A. Smith, Timothy B. Gardner Jan 2015

Total Pancreatectomy With Islet Autologous Transplantation: The Cure For Chronic Pancreatitis?, Samuel J. Kesseli, Kerrington A. Smith, Timothy B. Gardner

Dartmouth Scholarship

Chronic pancreatitis (CP) is a debilitating disease that leads to varying degrees of pancreatic endocrine and exocrine dysfunction. One of the most difficult symptoms of CP is severe abdominal pain, which is often challenging to control with available analgesics and therapies. In the last decade, total pancreatectomy with autologous islet cell transplantation has emerged as a promising treatment for the refractory pain of CP and is currently performed at approximately a dozen centers in the United States. While total pancreatectomy is not a new procedure, the endocrine function-preserving autologous islet cell isolation and re-implantation have made the prospect of total …