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Open Access Real-time PCR Assay for Measurement of Mouse Telomeres

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Measurement of telomeres by polymerase chain reaction (PCR) amplification has been problematic due to the formation of dimers by the primers designed to hybridize to the telomere repeats. Recently, a set of primers that overcome this problem has been created and used to develop an assay to measure human telomeres by real-time quantitative PCR. We modified this assay to measure mouse telomeres. Results showed that the primers do indeed amplify mammalian telomere repeats without forming dimers. Results obtained from the real-time quantitative PCR assay of mouse DNA were similar to terminal restriction fragment analysis by pulsed-field gel electrophoresis followed by Southern hybridization. The assay performed with mouse DNA in a similar manner as it performs with human DNA. Preliminary linkage mapping suggests a gene influencing telomere length on the X chromosome. This assay will aid in the study of telomere function and importance in diseases associated with aging and cancer formation.

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Document Type: Research Article

Publication date: 2006-02-01

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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