Mutant strains that alleviate central core silencing such as sim4 or outer repeat silencing, such as swi6Δ, display defective chromosome segregation, with high rates of lagging chromosomes on late anaphase spindles [19] [22], [27].
Indeed, our data show that the complex aneuploidies observed in cancer cells are not a requirement for increased rates of lagging chromosomes and that at least some low grade and constitutional aneuploidies are sufficient to induce such an effect.
Blacks are catching up; their rate of use lagged whites' by 10 percentage points in 1996, but is now only 4 points behind, the department said last month when it released a report by independent experts.
As the rate of progress lags Setting MDG 4 assumed an average annual reduction rate (AARR) of 4.4 per cent in the under-five mortality rate each year between 1990 and 2015.
In fact, high rates of anaphase lagging chromosomes were also observed in DLD1+7 cells, which did not display spartin overexpression.
We show here that cells with trisomy 7 or trisomy 13 display rates of anaphase lagging chromosomes that are significantly higher than the rates observed in euploid counterparts.
10.7554/eLife.05068.006 Figure 2. Increased rates of anaphase lagging chromosomes in cells with trisomy 7 or 13. (A ) Examples of normal anaphases (top row) and anaphase cells with lagging chromosomes (bottom row).
It should also be noted that, although we do observe an increase in the rates of anaphase lagging chromosomes in trisomic cells, such rates are lower than those reported for most CIN cancer cell lines (Thompson and Compton, 2008; Nicholson and Cimini, 2013; Bakhoum et al., 2014), in agreement with findings by Valind et al. (2013).
We believe this to be the case for two reasons: first, we do not observe multipolar mitoses (data now added in Figure 2 figure supplement 1); second, we find increased rates of anaphase lagging chromosomes also in DLD1+7, where tetraploidy is rare.
Rates of lag screw sliding, femoral shortening, and varus collapse were all significantly reduced in the teriparatide-treated group.
The bottom panel of Table 6 places the magnitudes in perspective by displaying the predicted interest rates for different levels of lagged exposure to real estate.
