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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Inflamm+Bowel+Dis
2016 ; 22
(11
): 2648-2657
Nephropedia Template TP
gab.com Text
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English Wikipedia
Serologic Anti-GP2 Antibodies Are Associated with Genetic Polymorphisms,
Fibrostenosis, and Need for Surgical Resection in Crohn s Disease
#MMPMID27753692
Degenhardt F
; Dirmeier A
; Lopez R
; Lang S
; Kunst C
; Roggenbuck D
; Reinhold D
; Szymczak S
; Rogler G
; Klebl F
; Franke A
; Rieder F
Inflamm Bowel Dis
2016[Nov]; 22
(11
): 2648-2657
PMID27753692
show ga
BACKGROUND: The presentation of Crohn's disease (CD) is heterogeneous and often
leads to serious complications and need for surgery. We tested serum anti-zymogen
granule glycoprotein 2 (GP2) antibodies, including its novel isoform alpha, for
association with genetic variants, diagnosis, disease stratification, and
prediction of CD courses in a combined cross-sectional and cohort study. METHODS:
Serum samples of 303 CD, 108 ulcerative colitis, 72 other inflammatory
gastrointestinal diseases, and 206 controls without predominant gastrointestinal
diseases controls (HC) were tested for the presence of Anti-GP2 and
Anti-Saccharomyces cervisiae (ASCA) by enzyme-linked immunosorbent assay. Genetic
analysis was performed using the Illumina Immunochip. RESULTS: GP2 IgA and IgG
had the highest discriminatory capability for CD versus ulcerative colitis and CD
versus inflammatory gastrointestinal diseases. We identified an association of
GP2 IgA and IgG each with 5 distinct single-nucleotide polymorphisms. Levels of
anti-GP2 IgG were moderately associated with ileal disease location.
Interestingly, both, anti-GP2 IgA and IgG were exclusively associated with the
occurrence of stenosis and need for surgery, independently of disease location,
but not with fistulizing CD, early disease onset or disease activity. ASCA IgG
and IgA were qualitatively and quantitatively linked to CD, CD complications, and
need for surgery. Increased levels of ASCA IgG and IgA and positivity for ASCA
IgG, but neither levels nor positivity for GP2 IgG or IgA were predictive of the
earlier occurrence of complications or surgery. CONCLUSIONS: Anti-GP2 antibodies
may aid as a tool for diagnosis and differentiation of CD and could indicate a
more complicated CD course.