BACKGROUND Preimplantation genetic diagnosis (PGD) currently relies on biopsy of one or few embryo cells. Our aim was to evaluate the embryo extracellular matrices (spent medium and blastocoele fluid) as source of DNA for embryo genotyping. RESULTS/METHODOLOGY We first evaluated the amplifiability and the amount of genomic DNA in spent embryo culture media from day 3 (n = 32) and day 5/6 (n =...

Background: Toxoplasmosis is one of the most important food-borne diseases distributed worldwide. In order to determinate the involvement of poultry meat in clinical toxoplasmosis, this study aimed to genetic characterization of Toxoplasma gondii in tissue samples of serologically positive chickens of Tunisia using Polymerase Chain Reaction (PCR). Methods: Trail of isolation of local T. gondii...

The objective of this study was to determine allele frequency and genotyping of UGT1A1 polymorphisms (UGT1A1*28 and UGT1A1*6) in Thai colorectal cancer patients who received irinotecan treatment and develop pyrosequencing technique for UGT1A1 genetic polymorphisms detection. The Ninety-one patients entered the study. The results showed the allele frequencies for UGT1A1 genetic polymorphisms wer...

Hepatitis C viral infection is a major cause of progressive liver disease. HCV genotype is one of the most significant baseline predictors of response to HCV antiviral therapy. The objective was to evaluate an HCV genotyping method that targets the 5'-untranslated region (UTR) to detect genotypes/subtypes using the GenMark eSensor® XT-8 system. The HCV amplicon of major genotypes/subtypes from ...

The objective of the present study was to evaluate the serum viral load in chronically infected Hepatitis B virus (HBV) patients and to investigate the distribution of HBV genotypes in São Paulo city. Quantitative HBV-DNA assays and HBV genotyping have gained importance for predicting HBV disease progression, have been employed for assessing infectivity, for treatment monitoring and for detecti...

BACKGROUND We have developed a novel, microsphere-based universal array platform referred to as the Tag-It platform. This platform is suitable for high-throughput clinical genotyping applications and was used for multiplex analysis of a panel of thrombophilia-associated single-nucleotide polymorphisms (SNPs). METHODS Genomic DNA from 132 patients was amplified by multiplex PCR using 6 primer ...

OBJECTIVE To examine the correlation of lactase persistence phenotype with genotype in Omani adults. METHODS Lactase persistence phenotype was tested by hydrogen breath test in 52 Omani Adults using the Micro H2 analyzer. Results were checked against genotyping using direct DNA sequencing. RESULTS Forty one individuals with C/C-13910 and T/T-13915 genotypes had positive breath tests (≥20 pp...

Brucella canis occurs almost worldwide and is a potential danger to the health of dogs and humans. The pathogen was detected in the placenta and fetuses of a Standard Poodle by direct culture and immunohistochemistry. Further, Brucellae were also isolated from the blood samples of two asymptomatic female Medium Poodles. The isolates were identified as B. canis by conventional microbiological me...

Direct detection and genotyping of Chlamydia trachomatis in cervical scrapes by using polymerase chain reaction and restriction fragment length polymorphism analysis. J Clin Microbiol 1993;31:1060–5. 15 Alexander S, Martin IM, Ison CA. Confirming the Chlamydia trachomatis status of referred rectal specimens. Sex Transm Infect 2007;83:327–9. 16 Martin IM, Alexander SA, Ison CA et al. Diagnosis o...