Publications by authors named "Heather L Newkirk"

Background: Omphalocele is a congenital birth defect characterised by the presence of internal organs located outside of the ventral abdominal wall. The purpose of this study was to identify the underlying genetic mechanisms of a large autosomal dominant Caucasian family with omphalocele.

Methods And Findings: A genetic linkage study was conducted in a large family with an autosomal dominant transmission of an omphalocele using a genome-wide single nucleotide polymorphism (SNP) array.

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We developed a novel quantitative microsphere suspension hybridization (QMH) assay for determination of genomic copy number by flow cytometry. Single copy (sc) products ranging in length from 62 to 2,304 nucleotides [Rogan et al., 2001; Knoll and Rogan, 2004] from ABL1 (chromosome 9q34), TEKT3 (17p12), PMP22 (17p12), and HOXB1 (17q21) were conjugated to spectrally distinct polystyrene microspheres.

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Cross-hybridization of repetitive sequences in genomic and expression arrays is reported to be suppressed with repeat-blocking nucleic acids (C(o)t-1 DNA). Contrary to expectation, we demonstrated that C(o)t-1 also enhanced non-specific hybridization between probes and genomic targets. When added to target DNA, C(o)t-1 enhanced hybridization (2.

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