Table 2: Cell cycle analysis of marrow samples.

S (%)G2 (%)M (%)
ControlsMDSControlsMDSControlsMDS

nRBC27.9 (16.2–41.9)31.2 (12.8–56.4)4.7 (2.1–8.2)6.3 (1.1–17.0)1.1 (0.5–1.6)1.0 (0.01–3.6)
Myeloid16.0 (6.7–28.1)17.16 (7.8–32.1)1.6 (0.0–3.3)4.3 (0.2–11.5)0.32 (0.2–0.6)0.45 (0.0–1.1)
CD34+13.5* (7.4–22.9)10.9* (2.0–16.0) * * 0.6 (0.2–1.1)0.8 (0.1–2.3)

Controls , MDS .
Cell populations discriminated by CD45, SS, CD71, and CD34.
DNA content assessed using DRAQ5; mitoses assessed using MPM-2.
Results expressed as mean (%) positive (range).
*Because of infrequent stem cell events, S and G2 are combined as post-G1 for stem cells.