Potent PCR inhibitors in blood and soil samples can cause false negative results from PCR-based clinical and forensic tests. We show that the effect of these inhibitors is primarily upon Taq DNA polymerase, since mutational alteration of the polymerase can overcome the inhibition to the extent that no DNA purification is now required. An N-terminal deletion (Klentaq1) is some 10-100-fold inhibi...

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Cigarette smoking (CS) is a major cause of various serious diseases due to tobacco chemicals. There evidence suggesting that CS has been linked with the DNA damage repair system, as it can affect genomic stability, inducing genetic changes in genes involved specifically nucleotide excision (NER) pathway, affecting function and/or regulation these genes. Single polymorphism (SNP), along CS, work...

BACKGROUND About one third of the human population suffer cancer during their lifetime and more than 20% of total morbidity is related to neoplasia. Cervical cancer is generally the most common cancer in developing countries and the second most common in women globally. The role of human papilloma viruses viruses in its induction is clear. However, the involvement of herpes simplex virus type 2...

optimization of the condition for pcr-directed sequencing of microsatellites poly adenine (a) length polymorphisms is more difficult and sensitive compared with other common sequences. replication slippage may occur for polymerase enzyme during microsatellite amplification and direct sequencing of these pcr products will be challenging for heterozygote samples. so, the aim of this study is to i...

BACKGROUND XMRV is the most recently described retrovirus to be found in Man, firstly in patients with prostate cancer (PC) and secondly in 67% of patients with chronic fatigue syndrome (CFS) and 3.7% of controls. Both disease associations remain contentious. Indeed, a recent publication has concluded that "XMRV is unlikely to be a human pathogen". Subsequently related but different polytropic ...

A multiplex PCR assay consisting of 13 Rapidly Mutating Y STR loci called RM-Yplex was developed. Platinum® Taq DNA polymerase was used to amplify the 13 Y STR loci in a single reaction in approximately 2.5 hours . In order to shorten the process with reliable results, several DNA polymerases were tested with the multiplex. Phusion® Flash High Fidelity and Platinum® Taq DNA polymerases were inv...