ArticleJournal of oral and maxillofacial pathology : JOMFP
Unveiling the arcanum of formalin-fixed paraffin-embedded archival tissue blocks: A valuable resource for genomic DNA extraction.
Article in Journal of oral and maxillofacial pathology : JOMFP. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Cost analysis of archives in the pathology laboratories: from safety to management.Journal of clinical pathology · 2023Review
- The quality of DNA isolated from autopsy formalin-fixed and formalin-fixed paraffin-embedded tissues: study of 1662 samples.Molecular biology reports · 2023Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Formalin-fixed paraffin-embedded (FFPE) tissue blocks are routinely preserved after pathological diagnosis and possess tremendous potential for biomarker discovery. These archival samples are prone to degradation on prolonged storage due to the formalin cross-linking. Aims: This study aimed to evaluate whether the storage period of the formalin-fixed paraffin-embedded tumor blocks had a significant impact on the yield and purity of the isolated DNA archived for 11 years. Settings and Design: A retrospective study was carried out in the Department of Oral Pathology and Microbiology in accordance with the Institutional Ethics Committee. Materials and Methods: Genomic DNA extraction was performed using TaKaRa DEXPAT Easy DNA kit from 40 FFPE tissue blocks of oral squamous cell carcinoma archived for 11 years (2006-2017). NanoDrop spectrophotometer was used to determine the DNA yield (A260) and purity (A260/A280 ratio). The quality of DNA fragments was validated using agarose gel electrophoresis. Statistical Analysis Used: Statistical analysis was obtained by SPSS 22, MS Excel and analyzed using the analysis of variance (ANOVA) test. Results: There was no statistically significant difference observed both in terms of DNA yield ( Conclusions: It was concluded that, irrespective of years of storage of the FFPE, it is possible to extract genomic DNA and use it for molecular studies.
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Registered trials
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