Noninvasive Genotyping of Dopamine Receptor D4 (DRD4) UsingNanograms of DNA From Substance-Dependent Patients

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A noninvasive DNA sampling method has been implemented collecting buccalmucosa cells by cotton wool swabs. An amount of 0.2-2 μg DNA per patient wasobtained after the phenol-extraction procedure and 0.2-2 ng DNA template wassufficient for PCR amplification of the polymorphic 48 basepair repeat region of dopaminereceptor D4 (DRD4) gene. PCR products were visualized during microfabricated electrophoretic separationby laser-induced fluorescent detection and automatic data registration. Initial data of genotyping drugdependentsubjects shows a relatively high ratio of heterozygotes, possessing either longer or shorter variantsbeside the common 4-repeat DRD4 allele.

Keywords: buccal swab; doamine d4 recetor; genotyping; noninvasive dna samling

Document Type: Review Article


Publication date: April 1, 2002

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  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
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