| 释义 |
melanogen
melanogen[mə′lan·ə·jən] (biochemistry) A colorless precursor of melanin. melanogen
melanogen [mĕ-lan´o-jen] a colorless chromogen, convertible into melanin, which may occur in the urine in certain diseases.me·la·no·gen (mĕ-lan'ō-jen, mel'ă-nō-jen), A colorless substance that may be converted into melanin; for example, some patients with widespread metastases of melanoma excrete melanogen in their urine, and melanin is formed when the urine is exposed to air (that is, oxidized) for a few hours. [melanin + G. -gen, producing] melanogen Any of a group of colourless melanin-related compounds (e.g., cysteinyldopa), which may be excreted in urine in patients with advanced melanoma.me·la·no·gen (mĕ-lan'ŏ-jen) A colorless substance that may be converted into melanin. [melanin + G. -gen, producing] |