The results are then reported as μM Trolox equivalent/100 g frozen sample.
For histology and fluorescence imaging analysis, 12-µm-thick sections were prepared from the same OCT embedded frozen sample as above.
Figure 4 shows one CN change between an FFPE tumor and a matched fresh frozen sample.
Frozen sample rosettes were ground to a fine powder with pestle and mortar under frequent cooling with liquid nitrogen.
Before sonication, 19 μL of the PMCA reaction mixture (termed "frozen" sample) was taken for comparison with the amplified sample (termed "sonicated" sample).
An additional disadvantage of frozen storage is that homogenization of frozen tissue must be accomplished rapidly to avoid the rapid RNA degeneration that occurs during thawing of a previously frozen sample.
In such case, the complete run must be repeated using frozen sample eluates, frozen Negative Control eluate and either frozen Positive Control if available or a new preparation.
The electron beam causes the frozen sample block to warp, motion-blurring a traditional camera's images.
He said provided the sperm had been retrieved and frozen early enough, there was no difference in the success rate between it and any other frozen sample, and that the chance of success would also depend on the woman's age and the quality of the sperm.
In brief, frozen sample was thawed and homogenized and then exposed to three further cycles of rapid freezing thawing.
Volume of blood drawn, date of bleed, age of blood at first freeze (before transformation) and number of re-growths (defined as successive cell line growths from a frozen sample) showed no significant correlation with XCI (P>0.05).
