background hepatitis b virus (hbv) covalently closed circular dna (cccdna) served as a vital role in the life cycle of the virus and persistent infection. however, specific and quantitative methods for cccdna detection have not been available. objectives our aim was to develop and primarily evaluate a quantitative method for hbv cccdna based on magnetic capture hybridization and quantitative pc...

Even though the blood-sucking mosquito Aedes aegypti is one of the most important disease vectors, relatively little is known about the molecular mechanisms underlying processes involved in the temporal pattern of its activity and host seeking behavior. In this study, we analyzed the expression of the cycle (cyc) gene, one of the core components of the circadian clock, in Ae. aegypti brains by ...

Details of sample processing and the DNA extraction procedure have been previously described [1, 2]. Fifty milliliters of water samples, collected from Edgewater and Fairhope Beach and 100 mL from Goddard Beach were filtered through a 0.4 μm pore size (47 mm in diameter) polycarbonate membrane filter (GE Osmonics, Minnetonka, MA), and the sides of the funnels were rinsed twice with 20 ml of ste...

1: In recent years, capillary-based LightCycler® Systems have become an established standard for rapid and accurate real-time PCR. Based on innovative technology for heating/cooling and highly accurate analysis algorithms, they enable thermal cycling at high speed and with precisely controlled temperatures, characteristics directly related to the consistency and accuracy of scientific results. ...

It was hypothesized that the processes contributing to pelvic organ prolapse (POP) may be identified by transcriptional profiling of pelvic connective tissue in conjunction with light microscopy. In order to test this, we performed a frequency-matched case-control study of women undergoing hysterectomy for POP and controls. Total RNA, extracted from uterosacral and round ligament samples used t...

BACKGROUND Many modern molecular diagnostic assays targeting nucleic acids are typically confined to developed countries or to the national reference laboratories of developing-world countries. The ability to make technologies for the rapid diagnosis of infectious diseases broadly available in a portable, low-cost format would mark a revolutionary step forward in global health. Many molecular a...