| 摘要 |
<p>The invention relates to a substance inhibiting tumorous proliferation in ectoderm derived tissues and to a composition containing such substance. The active substance and composition according to the invention are characterized in that human or animal derived fertilized ovum, preferably derived from sea water fish or fresh water fish or amphibian is subjected to cell wall destruction after 24 hours at most, preferably after 14-16 hours after fertilization, then the material is ultracentrifuged, the supernatant is separated, the sediment is homogenized, then ultracentrifuged several times, and each time the supernatant and the sediment are separated, thereafter all supernatant fractions are combined and centrifuged preferably at 8,000-15,000 rpm, the supernatant obtained is separated and diluted with physiological solution, preferable in 1:2 ratio by weight, the material is subjected to a series of gel filtration at least twice, then the filtered substance is lyophilized or optionally diluted with a diluent, preferably with physiological saline solution or dextrose solution or sterile distilled water, preferably in 1:2 ratio by weight.</p> |
