Effects of Irbesartan Pretreatment on Pancreatic β-Cell Apoptosis in STZ-Induced Acute Prediabetic Mice

Figure 5

Immunohistochemical staining of insulin in pancreas of mice in each group (200×). (a) Negative control group; (b) normal control group; (c) STZ group; and (d) IRB + STZ group.

(a)

(b)

(c)

(d)