Approximately 1.5 mL of the calcified PRP was added to each well containing a catheter sample, with one sample per well, and incubated at 37 °C for 90 min with mild rocking (25 rpm) on a Medicus Health blood tube rocker.
Large differences between track densities analyzed with the automated counting persisted between different grains analyzed in one sample as well as between different samples.
This probably reflects the known limitations of the MPSS technology [ 39], particularly with regards to transcripts that were not detected (zero counts) in one sample, as well as genes lacking appropriate restriction enzyme sites required for this technology.
In addition, the samples from Scotland (SCO) and England (ENO) were combined in one sample (UKO) as well as the European samples from tobacco (pooled sample are EUT).
Putative ECM Helotiales and Naucoria sp. were found in one sample each, as well as saprobes including Trichoderma sp. (8% of all fungi) and other ascomycetes (in one sample each).
For a screen, the assay needs to be able to identify compounds as either active or inactive based on data from one sample (i.e., well), so any overlap in the distribution of response between active and inactive treatments results in false readouts.
A key component of their strategy is to add a nominal colour to the k-mers that come from each sample so that uniquely 'coloured' segments in the graph then represent regions unique to one sample, naturally this approach is well suited to describing insertions or deletions as well as SNPs.
aCGH analysis using a sub-megabase tiling path array (SMRT-array, BC Cancer Agency, Vancouver, Canada)[ 2], was performed on 2 samples with a deletion on the der(9) chromosome, as well as one sample not showing the der(9) deletion, all of which carry the CNV14q12 event (2 show a gain, and one a deletion).
One sample contains a mixture of well- and poorly differentiated DCIS components in the same tissue specimen.
Triplicate aliquots of each well were counted in 2 mL Scintiverse II scintillant using a Beckman LS600SE scintillation counter (Beckman Coulter Inc., Fullerton, CA) averaged to provide one sample (n = 1) per well.
