Heejin Shin, Kyu-Sik Jeong, Sung-Jin Lee, Byung-Won Chun
언어
영어(ENG)
URL
https://www.earticle.net/Article/A430617
※ 기관로그인 시 무료 이용이 가능합니다.
4,000원
원문정보
초록
영어
DNA should be protected from factors such as temperature fluctuation, hydrolysis, and oxidative damage, to be preserved intact. Thus far, DNA has been conventionally stored in freezers to avoid the influence of these factors. However, as the required storage time and number of samples increase, so do the spatial and financial burden. DNAstable and DNAstable Plus are commercial solutions for long-term storage of DNA at room temperature. In this study, DNA extracted from human blood was stored at different temperatures (room temperature, 60 °C, −80 °C, −20 °C, and 4 °C), under hydration and illumination conditions, and with or without long-term storage solutions. After 1, 3, 6, and 12 months of storage, we analyzed the quantity and preservation of STR loci of the stored DNA. Storage of DNA for 1 year at 60 °C using DNAstable® Plus, simulating 16 years of storage at room temperature, had a preservative effect similar to that of freezing in dried state. On the other hand, DNAstable® was inefficient compared to conventional methods. Storage at ambient temperature using DNAstable® Plus thus presents a cost- and space-effective alternative for long-term storage, even for concentrations of DNA lower than 0.5 ng/μL.
목차
Abstract Ⅰ. Introduction Ⅱ. Materials and methods 1. DNA extraction and sample storage 2. DNA rehydration and quantification 3. PCR Amplification 4. Statistical analysis Ⅲ. Results 1. DNA quantification 2. STR analysis Ⅳ. Discussion Ⅴ. Conclusion Ⅵ. Acknowledgements Ⅶ. References
키워드
Age accelerationDNAstable®DNAstable® PlusLong-term DNA storage
저자
Heejin Shin [ DNA Analysis Division, Seoul Institute, National Forensic Service, Seoul, Korea ]
Kyu-Sik Jeong [ Forensic DNA Division, National Forensic Service, Wonju, Korea ]
Sung-Jin Lee [ DNA Analysis Division, Daegu Institute, National Forensic Service, Chilgok, Korea ]
Byung-Won Chun [ DNA Analysis Division, Daejeon Institute, National Forensic Service, Daejeon, Korea ]
Corresponding Author
법과학 분야는 사회정의 구현에 있어 크나큰 가치가 있음에도 불구하고 우리나라에서는 이 분야에 대한 인식이 미흡하여 선진 외국에 비해 침체되어 있는 실정이다. 이에 우리나라에서도 법과학 분야와 관련 있는 학계, 연구기관, 수사기관 등 유관 단체들로 구성된 한국 법과학회를 창립하여 이 분야를 활성화 시켜 과학수사를 한층 더 발전시키기 위함을 목적으로 한다.