NanoViricides Inc. (NNVC)

[Drano]

Why the XMRV study is flawed -- link

http://www.cfids.org/cfidslink/2010/010603.asp

"can this study be considered comparable to the results published by Lombardi et al., in Science? In short, no. Both studies included CFS patients defined by the 1994 case definition criteria, but this is where the comparability ends. Here are some of the ways the PLoS ONE and Science methods differ:

The blood was collected from CFS patients in different types of blood collection tubes.
The genomic DNA was extracted and purified using different techniques.
The amount of genomic DNA included in the amplification assay was different.
Different primer sequences were used that amplified different regions of the XMRV proviral DNA.
The conditions of the PCR amplification assay were different – from the numbers of cycles, to the type of polymerase used.
Should these differences affect an investigator’s ability to detect XMRV? To a microbiologist with experience handling samples and studying various infectious agents (as I am), these variances in procedure could make the difference between detecting XMRV or not.

It very well could be true that XMRV is not present in the U.K. as Erlwein, et al. suggest in their discussion, but it is also possible that the technique used in the PLoS ONE paper was suboptimal due to the different methods employed, when compared to the original experiments conducted by Lombardi, et al. "