Beta-cell mass (mg) in STZ-diabetic mice treated with insulin by insulin implant or islet transplant under the kidney capsule.

<p>Untreated STZ-diabetic B6 mice were examined 4–8 days after STZ-induced diabetes, which when untreated results in severe diabetes and death.</p>*<p>P<0.05 compared to untreated STZ-diabetic mice.