Methods of diagnosing a clinical subtype of Crohn's disease with

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

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435 795, 436506, 436518, G01N 33543, G01N 33564

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active

058742336

ABSTRACT:
The present invention provides a method of diagnosing a clinical subtype of Crohn's disease (CD) by determining whether perinuclear anti-neutrophil antibodies (pANCA) are present in a patient with CD, where the presence of pANCA indicates the clinical subtype of CD with features of ulcerative colitis (UC). The invention also provides a method of diagnosing a clinical subtype of CD by detecting an Arg.sup.241 allele at an ICAM-1 locus in a patient with CD, where the Arg.sup.241 allele indicates a clinical subtype of CD with features of ulcerative colitis. In addition, the invention provides a method of diagnosing a pANCA-positive subtype of CD by detecting an Arg.sup.241 allele at an ICAM-1 locus in a patient with CD, where the Arg.sup.241 allele indicates the pANCA-positive subtype of CD.

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