Table 4.

TBI-induced fold changes in CDKIs' mRNA expression in BM-MNCs



Days after TBI

1
3
7
14
28
56
p21Cip1/Waf1  16.55 ± 4.55   10.37 ± 0.62   8.15 ± 1.65   3.60 ± 1.08   2.10 ± 0.40   1.38 ± 0.15  
p27Kip1  –2.75 ± 0.25   –4.15 ± 1.15   –1.20 ± 0.10   1.15 ± 0.05   1.70 ± 0.20   1.47 ± 0.15  
p16Ink4a  4.27 ± 1.33   9.59 ± 2.21   4.94 ± 0.77   10.54 ± 2.60   5.76 ± 1.44   4.63 ± 2.02  
p19Arf  –3.83 ± 0.67   0.52 ± 0.58   4.60 ± 0.52   8.23 ± 2.72   4.28 ± 0.93   4.21 ± 0.66  
p18Ink4c
 
–7.20 ± 0.30
 
–5.00 ± 1.50
 
1.10 ± 0.10
 
1.00 ± 0.10
 
1.15 ± 0.05
 
1.35 ± 0.05
 


Days after TBI

1
3
7
14
28
56
p21Cip1/Waf1  16.55 ± 4.55   10.37 ± 0.62   8.15 ± 1.65   3.60 ± 1.08   2.10 ± 0.40   1.38 ± 0.15  
p27Kip1  –2.75 ± 0.25   –4.15 ± 1.15   –1.20 ± 0.10   1.15 ± 0.05   1.70 ± 0.20   1.47 ± 0.15  
p16Ink4a  4.27 ± 1.33   9.59 ± 2.21   4.94 ± 0.77   10.54 ± 2.60   5.76 ± 1.44   4.63 ± 2.02  
p19Arf  –3.83 ± 0.67   0.52 ± 0.58   4.60 ± 0.52   8.23 ± 2.72   4.28 ± 0.93   4.21 ± 0.66  
p18Ink4c
 
–7.20 ± 0.30
 
–5.00 ± 1.50
 
1.10 ± 0.10
 
1.00 ± 0.10
 
1.15 ± 0.05
 
1.35 ± 0.05
 

Mice were exposed to 6.5 Gy TBI or unirradiated as control. At 1, 3, 7, 14, 28, and 56 days after TBI, BM-MNCs were isolated from irradiated and unirradiated mice. RNA was extracted from these cells and analyzed by real-time RT-PCR. The relative quantity of individual CDKIs' mRNA was calculated for each sample after normalization with the expression of B2m mRNA and is presented as fold changes from control value ± SE (n = 3-8).

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