Words similar to acv
Example sentences for: acv
How can you use “acv” in a sentence? Here are some example sentences to help you improve your vocabulary:
These results were confirmed when the same isolates were tested for susceptibility to ACV (results not shown) and all the IC 50 s were sensitive over a similar range as PCV.
The natural phenomenon of spontaneous mutation, which occurs in the absence of drug selection, results in the accumulation of approximately six to eight TK-deficient variants per 10 4plaque-forming viruses in virus populations that have never been exposed to selective pressure [ 6 10 12 ] . Furthermore, HSV-2 clinical isolates were shown to have a higher frequency of spontaneous mutations resistant to ACV and PCV, approximately 30-fold, compared to HSV-1 isolates, and the majority of these mutations are in tk . Consistent with this observation, HSV-2 strains also exhibited approximately a 20- to 80-fold higher spontaneous mutation rate to cidofovir (HPMPC), an inhibitor of HSV Pol, resistance compared with HSV-1 [ 21 ] . Therefore, these naturally-occuring mutations are not unique to tk and TK substrates as detected with antiviral agents ACV and PCV, but were extended with the direct Pol inhibitor, HPMPC, to other loci, most likely pol .
Although virus recovered at passage 4 from one of five mice treated with VCV (14-P4) was clearly resistant in the PRA (IC 50 s 8.3 and 9.5 for PCV and ACV, respectively), the preceding and the subsequent isolates were sensitive according to the criteria for defining resistance.
ACV used in these studies was obtained from Sigma (St.
Resistance to acyclovir (ACV) or penciclovir (PCV) generally arises by a single base mutation in either the HSV thymidine kinase (TK) or DNA polymerase (Pol) gene [for a review, see reference [ 5 ] ]. Unlike Pol, TK is not essential for virus replication in cell culture [ 7 ] , although in vivo analyses implicate it in HSV virulence, pathogenicity and reactivation from latency [ 4 8 16 22 ] . Since ACV and PCV are dependent upon HSV TK for monophosphorylation, an event obligatory for the formation of the active triphosphate inhibitor [ 14 ] , ACV risolates often exhibit high levels of cross-resistance to PCV [ 2 3 ] .
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