期刊
JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY
卷 54, 期 3, 页码 371-374出版社
SAGE PUBLICATIONS LTD
DOI: 10.1369/jhc.5B6726.2005
关键词
mitochondrial DNA; nuclear DNA; autopsy tissue samples; fixative; degradation
类别
Samples of different tissues were preserved in seven fixatives for periods of time extending from 1 to 336 days, to determine which fixatives reduce the time-dependent degradation of DNA and preserve the histological structure. To achieve these results, three PCR systems were used: FGA and TC11 (both for nuclear DNA) and HV1 for mitochondrial DNA (mt-DNA). For long-term storage in combination with amplification of nuclear and mt-DNA, consistent results were obtained in Carnoy's solution and glutaralclehyde. Variable results were observed for buffered formalin; an mt-DNA product could be detected even after 3 months of fixation. In regard to comparison of the different tissues, the quantities recovered from skeletal muscles and kidneys were higher than from other tissues.
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