Massive bleeding induced by disintegration of breast cancer tumors for 4 yrs (88 yrs-old lady) was treated by applying Mohs' paste (75g/45mL of Zinc complex). This huge site healed quickly and the healing effects were sustained for 48 days. Based on this clinical evidence, the hemostatic mechanism of Mohs' paste was evaluated using the hind limb ischemia model in mice. Unilateral hind limb ischemia was induced in 6 week-old male C57BL/6JJmsSlc mice by resecting the right femoral and saphenous arteries. Mice were painted once a day with Mohs' paste containing 0, 37.5, 50 and 62.5g/45mL of zinc after the surgery. Hind limb blood perfusion was measured by using a laser Doppler perfusion imaging system (moorLDI2-Ⅱλ : S/N 5489). To identify capillaries, the thigh muscles were harvested on Day 1 to make a tissue section and immunostained for CD31. One day after painting of Mohs' paste, blood flow suppression to the ischemic leg was significantly enhanced in a dose dependent manner. Furthermore, anti-CD31 immunostaining revealed that Mohs' paste decreased capillary density in the ischemic muscle. The results of both the clinical and animal studies suggest that Mohs' paste suppressed angiogenesis due to the acute effects of aggregated protein and the sustained effects of decreases of CD31.
