It also lacks internal control for adequacy of bisulphite treatment (all non-5′-methylated cytosines should be fully converted to thymine), making identification of false positives very difficult.
While several methods have been developed to overcome these shortcomings, pyrosequencing offers a semiquantitative, high throughput and reliable method with inbuilt internal control for adequacy of bisulphite treatment (Colella et al, 2003; Tost et al, 2003; Dupont et al, 2004).
By contrast, when controlled for adequacy of emotional support, lack of social integration did have a significant negative influence.
Detection of human genomic DNA is commonly used to control for the adequacy of samples for HPV detection.
As a control for specimen adequacy, DNA extraction and the detection of PCR inhibitors, we will also amplify human β globin gene in all clinical specimens.
They were studied to control for the adequacy of the cytometric techniques and cellular culture procedures, as well as for characterization of the normal range of the B-lymphocyte compartment parameters analyzed.
Individual oligonucleotide capture probes enabled identification of 37 HR and low-risk HPV genotypes and the β-globin amplicon acted as a control for cell adequacy, extraction and amplification.
Risk estimates were obtained from key studies, meta-analyses or pooled studies, taking into account quality (including relevance to Britain, sample size, extent of control for confounders, adequacy of exposure assessment and clarity of case definition).
Risk estimates were obtained from key studies, meta-analyses or pooled studies, taking into account quality, such as relevance to Britain, sample size, extent of control for confounders, adequacy of exposure assessment, and clarity of case definition.
A set of primers to amplify a fragment of the human CFTR gene (892 bp) is included as a DNA control for sample adequacy, while an additional set of primers to amplify a spiked plasmid (1202 bp) is included as a PCR process control.
The Cobas® HPV test also has high sensitivity, which is desirable for under-screened women [ 34, 35]; a Beta-globin internal control for sample adequacy, which will reduce false-negatives; and a lower rate of cross-reactivity with low-risk HPV types, reducing false-positives [ 36].
