Endothelial cells of treated arteries were similar in number and morphology to those of non treated control arteries, but were negative to both CD31 and CD34 antibodies (data shown only for CD34 staining, see bottom row in Figure 6).
It is interesting to observe that both the patients with primary progressive disease were simultaneously positive to PCR as well as ELISA whereas, among the 6 patients with secondary progressive disease, one was positive to both PCR and ELISA, three were positive only to PCR, and 2 were negative to both the tests.
Interestingly, in the next blood sampling at 2 wpi (week 16), again 8 of 10 goats showed a stronger reaction to PPD-A than to PPD-B, and the 2 other vaccinated goats were negative to both tuberculins.
The expression of two CLEC-like receptors and two genes involved in NK cell lysis was examined in koalas with current evidence of chlamydial infection (Group 1), koalas with past infection based on the presence of Chlamydia-specific IgG but were negative to the Chlamydia PCR (Group 3) and koalas that were negative to both Chlamydia-PCR and western blot analysis of koala plasma (Group 2).
All controls turned out to be negative to HPV both in the EBC and in the paired brushing and lung tissue.
Reporters pressed the Clinton campaign several times during the call on whether they truly felt the ad was "negative", to which both Mook and Benenson reiterated that it violated, in their view, Sanders's vow not to run attack ads.
The VEGF expression in melanoma cells and the stromal cells was negative to variable positive at both SLN negative and SLN positive patients in all pT stages.
Ten herds were antibody negative to both viruses and were compared with 69 herds positive to BCV or BRSV or both.
While adding a child's name seems like a harmless, familial gesture of love and trust, the financial consequences can be extremely negative to both parent and child.
All the animals used in this study were DTH negative to both PPD-A and PPD-B at the beginning of the experiments.
