| Decreased production of immunoglobulin M and A in autoimmune pancreatitis. | |
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MedLine Citation:
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PMID: 19626266 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Autoimmune pancreatitis (AIP) is a rare type of chronic pancreatitis caused by an autoimmune abnormality. It is well known that high serum concentrations of IgG4 are helpful for making a diagnosis of AIP; however, it is unclear whether there are abnormalities in the production of other immunoglobulins in AIP. METHODS: We examined the immune condition of AIP patients before and after glucocorticoid treatment, focusing on serum levels of IgG, IgG4, IgM and IgA, and compared the results with those in other hepato-pancreatic diseases, such as autoimmune hepatitis, primary biliary cirrhosis, chronic pancreatitis and pancreatic carcinoma. RESULTS: IgM and IgA were decreased in patients with untreated AIP. IgM and IgG or IgG4 were negatively correlated in patients with AIP. The ratios of IgG to IgM and IgG to IgA in patients with AIP were significantly increased compared with the other diseases. The diagnostic sensitivity of IgG to IgM and IgG to IgA was 0.800 and 0.950, and the specificity of each ratio was 0.703 and 0.728, respectively, in the differentiation of AIP from the other diseases. IgM was not significantly changed after glucocorticoid treatment in the patients with AIP, while IgG, IgG4 and IgA decreased. CONCLUSIONS: The ratios of IgG to IgM and IgG to IgA may serve as novel diagnostic markers to differentiate AIP from other hepato-pancreatic diseases. Furthermore, low concentrations of IgM and IgA may be involved in the pathogenesis of AIP. |
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Authors:
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Masashi Taguchi; Yasuyuki Kihara; Yoshikuni Nagashio; Mitsuyoshi Yamamoto; Makoto Otsuki; Masaru Harada |
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Publication Detail:
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Type: Journal Article Date: 2009-07-22 |
Journal Detail:
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Title: Journal of gastroenterology Volume: 44 ISSN: 1435-5922 ISO Abbreviation: J. Gastroenterol. Publication Date: 2009 |
Date Detail:
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Created Date: 2009-11-12 Completed Date: 2010-02-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430794 Medline TA: J Gastroenterol Country: Japan |
Other Details:
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Languages: eng Pagination: 1133-9 Citation Subset: IM |
Affiliation:
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Third Department of Internal Medicine, University of Occupational and Environmental Health, Japan School of Medicine, Yahatanishi-ku, Kitakyushu, Japan. tagu@med.uoeh-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Autoimmune Diseases / diagnosis, drug therapy, immunology* Female Glucocorticoids / therapeutic use Humans Immunoglobulin A / blood*, drug effects Immunoglobulin G / blood, drug effects Immunoglobulin M / blood*, drug effects Liver Diseases / immunology Male Middle Aged Pancreatic Diseases / immunology Pancreatitis, Chronic / diagnosis, drug therapy, immunology* Sensitivity and Specificity |
| Chemical | |
Reg. No./Substance:
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0/Glucocorticoids; 0/Immunoglobulin A; 0/Immunoglobulin G; 0/Immunoglobulin M |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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