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Found 2 results

  1. Celiac.com 06/30/2008 - In the crypts of the small bowel, there is a group of small, granular epithelial cells, called Paneth cells, which play an important part in innate immune system. There has been some controversy about what role Paneth cells might play in complicating celiac disease, so team of Italian researchers set out to examine the distribution, proliferation, and function of paneth cells in adults with uncomplicated and complicated celiac disease. The research team was made up of P. Biancheri , Cdel V. Blanco, L. Cantoro, M. De Vincenzi, A. Di Sabatino, W. Dhaliwal, E. Miceli, R. Salerno, A. Vanoli, T.T. Macdonald, and G.R. Corazza. The team is affiliated with the Celiac Specialty Center at the First Department of Medicine at University of Pavia in Pavia, Italy. Seeking to better understand the function and the numbers of Paneth cell adults with celiac disease (celiac disease), the team measured Paneth cells and human alpha-defensin (HD)-5 and HD-6 in 28 adults with uncomplicated celiac disease, 8 patients with complicated celiac disease (3 with ulcerative jejunoileitis, 2 with refractory sprue, and 3 with enteropathy-associated T-cell lymphoma), and 14 control subjects. Subjects with uncomplicated untreated and treated celiac disease showed similar numbers of Paneth cells, with similar cell proliferation, compared to the control group, while subjects with complicated celiac disease showed much fewer Paneth. Subjects with uncomplicated untreated celiac disease, and those with treated celiac disease showed similar levels of mucosal HD-5 and HD-6 compared to the control group, while cells taken from the biopsies of subjects with treated celiac disease and challenged with gliadin proteins showed no change in mucosal HD-5 and HD-6 transcripts. Furthermore, those subjects with uncomplicated celiac disease showed no reduction in mucosal Paneth cell numbers and alpha-defensins. Clearly, a small study such as this will not tell us exactly how a reduction in the numbers of Paneth cells might complicate celiac disease, but since the role of Paneth cells is so vital to healthy innate immune function, it does point to the need for further examination. Am J Clin Pathol. 2008 Jul;130(1):34-42.
  2. The following abstract was submitted to celiac.com directly by William Dickey, Ph.D., a leading celiac disease researcher and gastroenterologist who practices at Altnagelvin Hospital, Londonderry, Northern Ireland. Dig Liver Dis. 2005 Sep 29; Dickey W, McMillan SA. Department of Gastroenterology, Altnagelvin Hospital, Londonderry BT47 6SB, Northern Ireland, UK. Celiac.com 10/11/2005 - BACKGROUND.: Serological testing, using IgA class endomysial and tissue transglutaminase antibodies has high sensitivity and specificity for celiac disease and allows case finding by clinicians other than gastroenterologists. We reviewed new celiac patients seen over a 9-year period to determine how the availability of serology, particularly to primary care physicians, has changed rates and sources of diagnosis. METHODS.: Files of patients attending a specialist celiac clinic who were diagnosed from 1996 through 2004 were reviewed. Patients with villous atrophy consistent with gluten sensitive enteropathy (Marsh III) on duodenal biopsy were selected. Data analyzed included clinical characteristics, endomysial and tissue transglutaminase antibodies status and source of request for serology. RESULTS.: Over the study period 347 new celiac patients, comprising adults and children aged 10 years and over, were identified, of whom 163 (47%) were identified by serological testing in primary care, 152 (44%) at the hospital gastroenterology department and 32 (9%) by other physicians in secondary care. Over three consecutive 3-year periods, the percentage of patients identified in primary care rose from 28% through 47% to 60%, with a rise in total numbers diagnosed from 93 through 118 to 136. There was no change in patient clinical characteristics over the study period. Though tissue transglutaminase antibodies were less sensitive than endomysial antibodies, combined testing obtained a sensitivity of over 90%. Patients identified in primary care were significantly younger and more likely to present with diarrhea as a primary symptom. CONCLUSION.: Currently over half of our celiac patients are identified by serological testing in primary care, which has resulted in an overall rise in diagnosis rates. Primary care practitioners have an important role in the diagnosis of celiac disease, particularly of patients who present with non-gastrointestinal symptoms. The contribution of specialists other than gastroenterologists in secondary care is disappointing and may improve with directed education.
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