Word: thyrotropin
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Dates: during 1939-1939
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...other highly evolved animals, the ordinary processes of life depend on other hormones which are non-sexual-such as insulin, the sparkplug hormone from the pancreas. Growth, according to the Carnegie Institution's Oscar Riddle, is due to a combined action of two pituitary hormones, prolactin and thyrotropin...
...combined action of two or more. This phenomenon is called "synergism." The work of Evans and others convinced many a gland man that the pituitary secreted a "growth hormone." Riddle's researches, however, tend to show that growth is a synergic response to two hormones, thyrotropin and prolactin. He also believes that this same pair get together in another synergism to maintain body heat...
...sources of confusion were less well understood than now, it was fashionable to attribute every pituitary reaction to a separate hormone. Riddle exposed some of these as "ghosts." He believes the number of definitely established front-lobe hormones to be small-five at most. These possible five are 1) thyrotropin, the thyroid-stimulator; 2) adrenotropin, which acts on the adrenals; 3) and 4), "FSH" and "LH" which affect the ovaries or testes; 5) prolactin...
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