Research Article

Adverse Health Effects of the Long-Term Simultaneous Exposure to Arsenic and Particulate Matter in a Murine Model

Figure 2

Histology of the heart from 28-days exposed rats to arsenic, PM2.5, and arsenic + PM2.5. Cross-section of hearts with hematoxylin-eosin staining and the hearts from control rats (A1–A3) did not show morphological alterations. The hearts from As (B1–B3), PM2.5 (C1–C3), and As + PM2.5 (D1–D3) exposed rats showed cartilaginous metaplasia areas (black arrow). The cartilaginous metaplasia areas in the hearts of As, PM2.5, and As + PM2.5 exposed rats were measured after 7, 14, and 28 days of exposure (b). n = 4 per group. Data are presented as median(range). and vs control.
(a)
(b)