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자료유형
학술저널
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거트앤리버 발행위원회 Gut and Liver Gut and Liver 제7권 제4호
발행연도
2013.1
수록면
411 - 416 (6page)

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Background/Aims: The primary pathophysiologic abnormality in achalasia is known to be a loss of inhibitory myenteric ganglion cells, which may result from an immune-mediated response or neuronal degeneration. The aim of this study was to identify proteins suggestive of an immune-mediated response or neuronal degeneration in the serum of achalasia patients using a proteomic analysis. Methods: Blood samples were collected from five symptomatic achalasia patients and five sex- and age-matched healthy controls. Serum proteomic analysis was conducted, and the protein spots were identified using matrix-assisted laser desorption ionization/time-of-flight and a proteomics analyzer. The serum level of C3 was measured by enzyme-linked immunosorbent assay in nine patients with achalasia and 18 sex- and age-matched healthy controls. Results: Of the 658 matched protein spots,28 spots were up-regulated over 2-fold in the serum from achalasia patients compared with that from controls. The upregulated proteins included complement C4B5, complement C3, cyclin-dependent kinase 5, transthyretin, and alpha 2macroglobulin. The serum levels of C3 in achalasia patients were significantly higher than those of controls. Conclusions:The serum proteomic analysis of achalasia patients suggests an immune-mediated response or neuronal degeneration. Further validation studies in larger samples and the esophageal tissue of achalasia patients are required.

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