DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan

Traditional Chinese medicine (TCM) preparations are widely used for healthcare and clinical practice. So far, the methods commonly used for quality evaluation of TCM preparations mainly focused on chemical ingredients. The biological ingredient analysis of TCM preparations is also important because...

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Main Authors: Xinwei Cheng, Xiaohua Chen, Xiaoquan Su, Huanxin Zhao, Maozhen Han, Cunpei Bo, Jian Xu, Hong Bai, Kang Ning
Format: Article
Language:English
Published: Elsevier 2014-06-01
Series:Genomics, Proteomics & Bioinformatics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S167202291400045X
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author Xinwei Cheng
Xiaohua Chen
Xiaoquan Su
Huanxin Zhao
Maozhen Han
Cunpei Bo
Jian Xu
Hong Bai
Kang Ning
author_facet Xinwei Cheng
Xiaohua Chen
Xiaoquan Su
Huanxin Zhao
Maozhen Han
Cunpei Bo
Jian Xu
Hong Bai
Kang Ning
author_sort Xinwei Cheng
collection DOAJ
description Traditional Chinese medicine (TCM) preparations are widely used for healthcare and clinical practice. So far, the methods commonly used for quality evaluation of TCM preparations mainly focused on chemical ingredients. The biological ingredient analysis of TCM preparations is also important because TCM preparations usually contain both plant and animal ingredients, which often include some mis-identified herbal materials, adulterants or even some biological contaminants. For biological ingredient analysis, the efficiency of DNA extraction is an important factor which might affect the accuracy and reliability of identification. The component complexity in TCM preparations is high, and DNA might be destroyed or degraded in different degrees after a series of processing procedures. Therefore, it is necessary to establish an effective protocol for DNA extraction from TCM preparations. In this study, we chose a classical TCM preparation, Liuwei Dihuang Wan (LDW), as an example to develop a TCM-specific DNA extraction method. An optimized cetyl trimethyl ammonium bromide (CTAB) method (TCM-CTAB) and three commonly-used extraction kits were tested for extraction of DNA from LDW samples. Experimental results indicated that DNA with the highest purity and concentration was obtained by using TCM-CTAB. To further evaluate the different extraction methods, amplification of the second internal transcribed spacer (ITS2) and the chloroplast genome trnL intron was carried out. The results have shown that PCR amplification was successful only with template of DNA extracted by using TCM-CTAB. Moreover, we performed high-throughput 454 sequencing using DNA extracted by TCM-CTAB. Data analysis showed that 3–4 out of 6 prescribed species were detected from LDW samples, while up to 5 contaminating species were detected, suggesting TCM-CTAB method could facilitate follow-up DNA-based examination of TCM preparations.
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spelling doaj.art-dd4566c86ea84dfba3e0a8a7914e53652024-02-02T18:36:35ZengElsevierGenomics, Proteomics & Bioinformatics1672-02292014-06-0112313714310.1016/j.gpb.2014.03.002DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang WanXinwei Cheng0Xiaohua Chen1Xiaoquan Su2Huanxin Zhao3Maozhen Han4Cunpei Bo5Jian Xu6Hong Bai7Kang Ning8Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaInstitute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaInstitute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, ChinaShandong Key Laboratory of Energy Genetics, CAS Key Laboratory of Biofuels and Bioinformatics Group of Single Cell Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, ChinaTraditional Chinese medicine (TCM) preparations are widely used for healthcare and clinical practice. So far, the methods commonly used for quality evaluation of TCM preparations mainly focused on chemical ingredients. The biological ingredient analysis of TCM preparations is also important because TCM preparations usually contain both plant and animal ingredients, which often include some mis-identified herbal materials, adulterants or even some biological contaminants. For biological ingredient analysis, the efficiency of DNA extraction is an important factor which might affect the accuracy and reliability of identification. The component complexity in TCM preparations is high, and DNA might be destroyed or degraded in different degrees after a series of processing procedures. Therefore, it is necessary to establish an effective protocol for DNA extraction from TCM preparations. In this study, we chose a classical TCM preparation, Liuwei Dihuang Wan (LDW), as an example to develop a TCM-specific DNA extraction method. An optimized cetyl trimethyl ammonium bromide (CTAB) method (TCM-CTAB) and three commonly-used extraction kits were tested for extraction of DNA from LDW samples. Experimental results indicated that DNA with the highest purity and concentration was obtained by using TCM-CTAB. To further evaluate the different extraction methods, amplification of the second internal transcribed spacer (ITS2) and the chloroplast genome trnL intron was carried out. The results have shown that PCR amplification was successful only with template of DNA extracted by using TCM-CTAB. Moreover, we performed high-throughput 454 sequencing using DNA extracted by TCM-CTAB. Data analysis showed that 3–4 out of 6 prescribed species were detected from LDW samples, while up to 5 contaminating species were detected, suggesting TCM-CTAB method could facilitate follow-up DNA-based examination of TCM preparations.http://www.sciencedirect.com/science/article/pii/S167202291400045XDNA extractionTraditional Chinese medicine preparationBiological ingredientsLiuwei Dihuang Wan
spellingShingle Xinwei Cheng
Xiaohua Chen
Xiaoquan Su
Huanxin Zhao
Maozhen Han
Cunpei Bo
Jian Xu
Hong Bai
Kang Ning
DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
Genomics, Proteomics & Bioinformatics
DNA extraction
Traditional Chinese medicine preparation
Biological ingredients
Liuwei Dihuang Wan
title DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
title_full DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
title_fullStr DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
title_full_unstemmed DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
title_short DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan
title_sort dna extraction protocol for biological ingredient analysis of liuwei dihuang wan
topic DNA extraction
Traditional Chinese medicine preparation
Biological ingredients
Liuwei Dihuang Wan
url http://www.sciencedirect.com/science/article/pii/S167202291400045X
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