The Melanocytes of the Internal Ear (I Melanociti Dell'orecchio Interno).

摘要

The results of the hormonal tests which are reported in summary form were positive. In frogs, the melatonin and the intermedin (MSH) demonstrated their opposite action on the pigmented cells of the internal ear, pia, and dura mater as well as the outer layer cortex. Melatonin caused a contraction of the cellular elements and a consequent paling of the mantle of the animals. Intermedin caused cellular expansion in various areas examined with a simultaneous surface chromatic accentuation. The serotonin gave results similar to those of intermedin and the 5-methoxy tryptophol induced cellular contractions just like melatonin. In guinea pigs, the clearest response, limited to the pigmented cells of the inner ear (semicircular canals) occurred with serotonin and intermedin. The results of research on the cellular pigments on the internal ear are presented.