نتایج جستجو برای: genome dna extraction

تعداد نتایج: 836636  

Journal: Journal of Herbal Drugs 2011

Medicinal plants have high importance in medicine and pharmacogonosy because of their secondary metabolites. Essential oils, antioxidants and flavonoids are the major compounds of many medicinal plants. These compounds especially antioxidants can increase oxidation of DNA in response to wounds. Nowadays, progresses in biotechnology such as molecular markers were used for phylogenetic relationsh...

2009
Pang-Chui Shaw Ka-Lok Wong Albert Wai-Kit Chan Wai-Cheong Wong Paul Pui-Hay But

Herbal medicines are used in many countries for maintaining health and treating diseases. Their efficacy depends on the use of the correct materials, and life-threatening poisoning may occur if toxic adulterants or substitutes are administered instead. Identification of a medicinal material at the DNA level provides an objective and powerful tool for quality control. Extraction of high-quality ...

Abstract DNA sequencing is one of the great valuable techniques in molecular biology, which can be used to detect the sequence of nucleotides in a DNA fragment. The high-throughput se­quencing known as Next Generation Sequencing (NGS) revolutionized genomic research and molecular biology; therefore, the whole human genome can be sequenced with a low cost in several days. NGS technology is simi...

فرزانه تفویضی، رضا عصاره .

نقطه شروع‌ ‏بسیاری‌ از روش‌های‌ بیولوژی‌ مولکولی‌، ‏ضرورت‌ جداسازی DNA‏ با کیفیت‌ عالی است. معمولا کیفیت DNA‏ ‏با ‏عواملی‌ از قبیل‌ عدم‌ آلودگی‌ ناشی‌ ‏ازRNA ‎، پروتئین، لیپید و سایر ساختارهائی‌ که‌ برای‌ آنزیم‌های‌ برشی‌ و ‏پلی‌ مرازها مزاحمت‌ ایجاد می‌کنند ‏سنجیده‌ می‌شود‎‏. معمولا DNA ‏استخراج ‏شده‏ از بلوک های پارافین و بافت‌های فیکس شده در فرمالین بخاطر اثرات تخریبی وارد شده بر ‏DNA، از کی...

2015
Sarah M. Hykin Ke Bi Jimmy A. McGuire Ludovic Orlando

For 150 years or more, specimens were routinely collected and deposited in natural history collections without preserving fresh tissue samples for genetic analysis. In the case of most herpetological specimens (i.e. amphibians and reptiles), attempts to extract and sequence DNA from formalin-fixed, ethanol-preserved specimens-particularly for use in phylogenetic analyses-has been laborious and ...

Journal: :Mutagenesis 2011
Ian G Cowell Michael J Tilby Caroline A Austin

The ability to detect and quantify specific DNA adducts benefits genome stability research, drug development and the evaluation of environmental mutagens. The trapped in agarose DNA immunostaining (TARDIS) assay was developed as a means of detecting and quantifying melphalan and cisplatin DNA adducts at the single-cell level and has since been adapted to quantify topoisomerase-DNA complexes. Th...

ABDOLNASSER RAPI, FRANCOIS FEVAL, JOHN L. STANFORD, MOHAMMED H. MOBAYEN,

We describe a rapid, simple, and reliable procedure for routine isolation of Mycobacterium leprae DNA from slit-skin swab specimens. This one-step DNA extraction method is based on the utilization of ChelexR 100, a chelating ion exchange resin. Slit-skin swab specimens from seven untreated leprosy patients at Baba Baghi Leprosy Hospital in Iran were processed by this procedure. The polymer...

B. Tabanifar E. Asgarani M. Faghihi R, Salehi, T. Allame

  Background and Objective: Formalin-fixed paraffin-embedded tissues are a valuable source of DNA for molecular studies. We designed and optimized an efficient procedure for DNA extraction from formalin-fixed paraffin embedded tissues. Materials and Methods: Seventy three blocks of cervical paraffin-embedded tissues were investigated. DNA was extracted using 45 minutes boiling in alkaline sol...

Journal: :Nucleic Acids Research 1997

Journal: :تحقیقات دامپزشکی 0
غزال نعمتی گروه بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران ابوالفضل کامکار گروه بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران بریجیت اکرت موسسه molecular biological system transferر(mbst)، تهران- ایران افشین آخوندزاده گروه بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران نگین نوری گروه بهداشت و کنترل مواد غذایی، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران ایرج اشرافی گروه میکروبیولوژی، دانشکده دامپزشکی دانشگاه تهران، تهران- ایران پرویز شایان

background: soybean oil is one of the highly consumed vegetable oil worldwide. nowadays, usage of genetically modified (gm) soybean seeds for soybean oil production is constantly increasing. the recommended methods for gmo detection are based on analysis of residual dna in vegetable oil and highly processed food. however, the successful amplification of isolated dna depends on the efficiency of...

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