Sensitivity to intravenous injections of histamine and serotonin in inbred mouse strains

A large panel of inbred strains of mice and some of their Fl hybrids were tested on their sensitivity to the hemoconcentrating effects of intravenous injections of histamine alone, serotonin alone, or histamine-serotonin mixtures. Major differences in susceptibility were observed. Crosses and backcrosses were made between susceptible (SJL/J) and less susceptible (RF/J, C57BL/6J) strains; it was found that the sensitivity to vasoactive amines is, at least partially, inheritable.