VM mice have a different PrP sequence (PrP-b) and have been used to identify BSE after 2 serial passages
on the basis of incubation period (IP) and LP data (23).
coli by serial passage
on cefoxitin-containing medium to determine which of these two resistance mechanisms was predominant and if our findings were representative of those seen in clinical isolates.
Transformants retained resistance till 70th passage ciprofloxacin was found to have moderate activity in stability after 48th number of serial passages
Development of Senescence-Associated Phenotypes in BMSCs following Serial Passages
. Cultured BMSCs displayed the senescent phenotypes in a passage-dependent manner, characterized by increased number of senescence-associated [beta]-galactosidase (SA-[beta]-gal) positive cells from 14.9 [+ or -] 3.3% in the 1st passage BMSCs to 23.1 [+ or -] 2.7% and 37.8 [+ or -] 3.1% in the 2nd and 3rd passages, respectively (P < 0.01; Figures 1(a) and 1(b)).
Production of respiratory epithelium construct for large mucosal defect will need large numbers of respiratory epithelial cells, therefore the cells need to culture for few passages, therefore, it is important to study the properties of the cells after serial passages
(Yamashita et al., 2007).
It is clear from the results that pathogenicity of original IBDV reduced considerably after serial passages
in embryonated chicken eggs.
Because DT104o was highly variable, 5 DT104 strains were tested for the frequency of variants at each locus after 5 serial passages
by using liquid culture: cultures were diluted 1:1,000 at each passage.
of the AIV through embryos improved it's HA and biological titer but tremendously decreased its antigenicity.
were performed in TgOvPrP4 mice by i.c.
These were the SSBP/1 scrapie isolate, experimentally maintained by serial passages
in sheep (29), and CH1641 that was derived from a Cheviot sheep and then maintained by serial passages
in sheep (26).