BACKGROUND We have previously studied p53 gene mutations in 25 primary gastric cancer tissues by polymerase chain reaction single-strand conformation polymorphism (PCR-SSCP) analysis for exon 4-8 and immunohistochemical staining with anti-p53 antibody. In four cases, the discrepancy of the results was observed between the two methods. In one case positive by PCR-SSCP but negative by immunohisto...

Here we present a review of the single-strand conformation polymorphism (SSCP) method, which allows DNA fragments that have been amplified with specific primers and polymerase chain reaction (PCR) to be scanned rapidly for any sequence variation. The general principles of the method are described, as well as the major factors that must be considered in developing an optimal SSCP strategy, namel...

Silver-staining of nucleic acid has been used for various biological analyses, including polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP) analysis. A variety of methods have been described, but these methods are not that effective for staining more than a few PCR-SSCP gels, especially rapidly and with high sensitivity, because they include a number of time-consuming ...

AIM To study the alterations in p53 gene among Indian gastric cancer patients and to correlate them with the various clinicopathological parameters. METHODS A total of 103 gastric cancer patients were included in this study. The p53 alterations were studied by both immunohistochemical method as well as polymerase chain reaction (PCR)-single strand conformation polymorphism (SSCP) analysis. We...

PURPOSE To investigate whether a longer sagittal view and less movement using a dual sagittal crystal probe (DSCP) for trans rectal ultra sound (TRUS) allow for more accurate online-planning in I-125 permanent implant brachytherapy of the prostate, compared to a single sagittal crystal probe (SSCP). MATERIAL AND METHODS Between March 2008 and March 2010, 50 patients with prostate cancer were ...

Applications of various molecular methods for the analysis of mutations in the @-globin gene has led to the identification of nearly 100 different @-thalassemia mutations in the world.’ Recently, two methods have been described for mutation detection that rely on the analysis of single-stranded conformation polymorphisms (sscp) ofDNA2 or of RNA.’ We find that DNA s s c p and RNA sscp analysis b...

Among fluoroquinolone-resistant Mycobacterium tuberculosis (FQr-MTB) isolates, mutation at positions 90, 91, and 94 in gyrA gene and at positions 495, 516, and 533 in gyrB gene have been frequently reported. In this study, 35 isolates of FQr-MTB were collected from Siriraj Hospital and Chest Disease Institute. The quinolone-resistance-determining regions (QRDR) of gyrA and gyrB genes in all 35 ...

We designed oligonucleotide primer pairs to amplify the promoter region, the translated exon sequences, and the flanking intron sequences of all 18 exons of the LDL receptor gene to compare the ability of the PCR single-strand conformation polymorphism (PCR-SSCP) method with semiautomated solid-phase genomic DNA sequencing to detect sequence variations. In 20 apparently unrelated Danish patient...

We have developed a primer-mediated PCR mutagenesis-based method for the generation of positive controls to test the sensitivity of single-strand conformation polymorphism (SSCP) or any other PCR-based mutation screening method. This technique is based on the incorporation of a third longer primer, containing a mismatched base, into the PCR along with the two wild-type primers normally used to ...