. Author manuscript; available in PMC: 2013 Jun 1.

Published in final edited form as: Radiat Res. 2011 Dec 16;177(6):792–803. doi: 10.1667/rr1281.1

TABLE 3.

Theoretical (single-hit, multitarget) Fits to Survival Curves of NOS Knockdown Hematopoietic Progenitor (32D cl 3) Cells

siRNA	D₀ (Gy)	n
Control	1.25 ± 0.05	3.9 ± 2.4
NOS1	1.48 ± 0.08 (^*P < 0.05)	1.5 ± 0.5
NOS1 + 5 mM l-arginine^a	1.59 ± 0.10 (^*P < 0.05)	1.4 ± 0.3
NOS2	1.27 ± 0.17	4.6 ± 3.3
NOS3	1.23 ± 0.13	3.1 ± 2.0

Notes. The uncertainties given are standard errors.

When compared with controls, significant differences were observed only with NOS1 knocked down, irrespective of the presence of l-arginine. Fits to survival curves are provided as Supplementary Material (http://dx.doi.org/10.1667/RR1281.1.S1).

Additions made to the culture medium 1 h prior to irradiation.