Figure 2.

Erythropoietic response to administration of either vehicle (C, 100 μL) or testosterone (T, 100 μL, 50mg/kg) weekly for 3 wk. Y, young adult; O, older mice. Results are shown as mean ± standard error of mean, N = 9 in each group. Data were analyzed by one-way analysis of variance followed by Tukey’s test. Hct, hematocrit; Hb, hemoglobin; RBC, red blood cell count; MCV, mean corpuscular volume; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration; ret-C, reticulocyte count; CHr, reticulocyte hemoglobin ratio; ns, nonsignificance.