Protective effect of Radix Astragali injection on immune organs of rats with obstructive jaundice and its mechanism

Figure 3 Pathological changes in thymus of sham-operated group (A), model control group (B), and treatment group (C). A1: 28 d. Clear structure of thymus lobules and a clear boundary between thymus cortex and medulla (HE, × 100); B1: 7 d. Sporadic apoptotic cells in thymus (TUNEL, × 400); B2: 21 d. Thymus (++) (NF-κB p65, × 200); B3: 28 d. An obscure boundary between the thymus cortex and medulla with hemorrhage in the medulla (HE, × 200); B4: 28 d. Thymus (++) (Bax, × 200); B5: 28 d. Sporadic apoptotic cells in thymus (TUNEL, × 400); C1: 21 d. Thymus (not shown) (NF-κB p65, × 200); C2: 28 d. Normal thymus (HE, × 200); C3: 28 d. Sporadic apoptotic cells in thymus (TUNEL, × 400).