Word: secretin
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Dates: during 1938-1938
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Among common drugs administered to make the gall bladder evacuate the bile are calomel (mercurous chloride), rhubarb, mandrake, jalap. New are the hormones secretin and cholecystokinin...
...gall bladder is a greenish globule one-twelfth of an inch in diameter (visible as a disk about the size of the fish's eye but not so dark-see cut}. Dr. Viehoever found that soon after he injected the most trifling amount of the hormones secretin and cholecystokinin into the fish's tail, the gall bladder contracted, and squeezed its green bile into the intestines. This is what human gall bladders normally do during digestion, what they cannot do when obstructed by gallstones or mucus plugs...
...seen a molecule under the microscope, laymen may be mystified to hear scientific talk of "giant molecules." But molecules, infinitesimally tiny as they are by ordinary standards, vary greatly in size. Molecular weight of ethyl alcohol, for example, is 46 units; * of sodium chloride (salt), 58.5; of the hormone secretin, 5,000; of hemoglobin, about 68,000; of the thyroid substance thyroglobulin, about 700,000. Dr. Wendell Meredith Stanley and his associates at the Rockefeller Institute have crystallized the virus which causes mosaic disease in tobacco, found that it weighs 17,000,000 units (TIME, Nov.15). A rabbit wart virus...
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