Current attorney general Gomez, pictured above, told reporters that the Innsbruck scientists used three methods to cross-reference samples of mitochondrial DNA found in the 17 pieces of remains.
Comparisons of batch effect removal methods [ 11, 12] have found the location-scale adjustment empirical Bayesian method ComBat [ 13] to be robust, particularly when the study does not include multiple platforms or tissue-types, and when cross-batch reference samples are unavailable [ 12].
Prior to the analysis of the paint cross-sections, powdered reference samples (described below) were prepared for bulk XANES analysis by dusting the finely ground powder onto sulfur-free Kapton tape.
Clearly, extending the analysis to include various points in the development of the disease and cross-reference to samples from human patients will undoubtedly lead to deciphering of pathogenic mechanisms and implicate other specific cellular pathways and genes.
To obtain the reference samples, we adopted a cross-validation procedure, in which 100 of 120 haplotypes were randomly selected, and the remaining 20 haplotypes were assigned into the test samples.
The numbers of differentially expressed genes between the sets of reference samples also points to the successful removal of cross-experimental effects.
In the corresponding dendrogram the reference arrays (UC Davis is gold and Cincinnati reference samples are pink) are mixed, suggesting that the cross-experimental batch effects have been removed.
As a cross reference, chromosome counts on root tip squashes [ 39] were also performed on a sample of 20 individuals.
Legend: ● reference samples; (red diamond) unknown samples.
Cross reference: "The Therapeutic Alliance: The Essential Ingredient for Psychology".
While 85 genes were differentially expressed between the two groups of reference samples before the data was adjusted, there were no genes differentially expressed between UC Davis and Cincinnati reference samples after cross-experiment batch adjustment.
