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Jiann-Jyh Lai, Kuo-Pao Lai, Kuang-Hsiang Chuang, Philip Chang, I-Chen Yu, Wen-Jye Lin, Chawnshang Chang
Published in Volume 119, Issue 12
J Clin Invest. 2009; 119(12):3739–3751 doi:10.1172/JCI39335
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Figure 1
Cutaneous wound healing is accelerated in male GARKO mice due to loss of AR function.

Excisional wounds were made by 4-mm-diameter punches. (A) Photographs of day 8 wounds. The arrowheads point out the location of wounds. (B) Wound areas were quantified for WT and GARKO mice. n = 7–10 (2 wounds/mouse). *P = 0.001. (C) H&E staining for day 3 wound sections. Black arrowheads indicate edges of wounds, red arrowheads indicate edges of epithelium, and white arrowheads indicate foci of infiltrating cells. Scale bars: 500 μm. (D) Higher magnification of the boxed region in C. The red arrowhead indicates the edge of epithelium. Scale bar: 100 μm. (E) The quantified data for re-epithelialization. n = 4 (6 wounds/mouse). *P = 0.001. (F) Day 10 wounds were subjected to Mason’s Trichrome staining to detect collagen fibers (blue). Arrowheads indicate the edges of wounds, and ovals indicate the areas of granulation tissue. Data are representative of 12–16 wounds (4 wounds/mouse) in each group. Scale bars: 500 μm. The quantitative data show relative collagen deposition in granulation tissues compared with the adjacent dermis. n = 3–4 (4 wounds/mouse). *P < 0.05. (G) DHT pellets or placebos were implanted into GARKO mice, and only placebo pellets were implanted into WT mice. Serum DHT levels were detected by ELISA after DHT restoration. n = 3–4 mice. *P = 0.023–0.025 versus GARKO placebo. (H) After DHT restoration, wounds were created, and wound areas were quantified on the days indicated. n = 3–4 (2 wounds/mouse). *P < 0.01 versus WT (placebo).