Diagnostic method and oligonucleotide chip for congenital adrenal hyperplasia

Abstract

The present invention provides a diagnostic method for congenital adrenal hyperplasia, comprising the steps of: preparing oligonucleotide chip in which 7 sets of tandem cDNA fragments of normal and patient's 21-hydroxylase gene (exon 1, intron 2, exon 4) are immobilized to solid support; amplifying the DNA segments of 21-hydroxylase gene (exon 1, intron 2, exon 4) from the genomnic DNA of a testee using labeled primers under the suitable condition for carrying out polymerase chain reaction (PCR); hybridizing 7 sets of tandem cDNA fragments in oligonucleotide chip with the PCR product by amplifying gDNA segments; and analyzing the results of the hybridization.

Dependencies are inferred from the claim text.