Immunohistochemistry detection of hCD45 and mCD45.

<p>(<b>A</b>) hCD45 and mCD45 staining from the 14d, 21d, 28d, and 31d groups. Original magnification: 400×. (<b>B</b>) hCD45⁺ and mCD45⁺ cell counts. Number of hCD45⁺ or mCD45⁺ cells was counted according to staining results. Statistical significance was assessed by the Student's <i>t</i>-test. **<i>P</i><0.01.