Quantitative stability of DNA after extended storage of clinical specimens as determined by real-time PCR.
نویسندگان
چکیده
Viral DNA stored for extended periods can be amplified by PCR. However, it is unknown whether stored specimens give accurate quantitative results by newer real-time PCR techniques. We therefore compared herpes simplex virus DNA levels in specimens before and after 16 months of storage. The levels of viral DNA remained stable whether the DNA was stored as purified DNA or unextracted DNA in a whole specimen.
منابع مشابه
Rapid quantitative detection of Listeria monocytogenes in chicken using direct and combined enrichment/qPCR method
Listeria monocytogenes is a species of foodborne pathogen often related to foods, such as poultry, ready-to-eat products, fruits, and vegetables. The culture method is a standard procedure for the detection of bacteria in food products. The real-time quantitative PCR (qPCR) technique can be used for the quantification of foodborne pathogens. The current research was aimed to assess...
متن کاملThe Study of Cerumen Hepatitis B Infection in Chronic Hepatitis B Patients by Real-Time PCR
Introduction: The hepatitis B is a viral infection that causes a big problem globally. About 2 billion people worldwide are infected and there are now about 400 million HBV-DNA carriers around the world. HBV infection is the ninth cause of death worldwide and infects about 350 million new cases each year in the world. HBV-DNA can be spotted in different body secretions and fluids, including se...
متن کاملAn Effective Method for Detecting Y-chromosome Specific Sequences of Circulating Fetal DNA in Maternal Plasma During the First-trimester
Background and Aims: New advances in the use of cell-free fetal DNA (cffDNA) in maternal plasma of pregnant women has provided the possibility of applying cffDNA in prenatal diagnosis as a non-invasive method. One of the applications of prenatal diagnosis is fetal gender determination. Early prenatal determination of fetal sex is required for pregnant women at risk of X-linked and some endocrin...
متن کاملکلونینگ ژن کدکننده آنتیژن سطحی ویروس هپاتیت B در اشرشیاکولی
Background & Aim: Hepatitis B virus(HBV) infection is endemic worldwide. It is estimated every year more than 350 million people become infected with HBV(new cases) worldwide. Unfortunately, there are no satisfactory drugs to cure HBV and related diseases and the only way to control it is through vaccination. Measurements of HBV DNA levels are routinely used to identify infectious chronic c...
متن کاملDNA Load Analysis Using Real Time PCR In Comparison With Immunohistochemical Findings of Dry Type Cutaneous Leishmaniasis; Before and After Treatment by Imiquimode,Glucantime and Combination of Both Drugs
Background and Objectives: Kerman Province, especially city of Bam in the southeast part of Iran, is epidemics for dry type cutaneous leishmaniasis (DTCL). This study was conducted to compare the effect of different treatments on parasite DNA load following therapies using Real-Time PCR method. Materials and Methods: Fifteen patients were divided into three groups under therapy with intralesio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of clinical microbiology
دوره 40 7 شماره
صفحات -
تاریخ انتشار 2002