The diffusion factor in leprous skin

ABSTRACT

1- The diffusion activity (R factor) of human skin is 50 per cent that of bovine testicular extract. 2- The R factor is not modified in diseased and in apparently healthy skin of patients with tuberculoid leprosy. 3- In cases of lperomatous leprosy the diffusion activity disappears completely from the skin. 4- The diffusion activity ol leprous skin is inversely proportional to the amount of M. leprae it contains 5- Extract of lepromatous skin appears to exercise an antagonistic effect on the diffusion action of extract of tuberculoid skin.