Word: sperms
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Dates: during 1940-1949
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...into the causes & cures of sterility, the P.P.F. gave one of two* Lasker Foundation awards to urbane, white-haired Dr. John Rock-the first Roman Catholic doctor to be so honored. Dr. Rock, 57, has studied the problems of fertility for 20 years. The first to demonstrate that human sperm can fertilize a human egg in the laboratory (TIME, Aug. 14, 1944), he is director of the Fertility and Endocrine Clinic at the Free Hospital for Women, Brookline, Mass...
...gave the doctor an idea. Under the microscope, one type of normal animal tissue-embryonic-closely resembles cancer. Dr. Greene planted some embryonic tissue in guinea pigs' eyes. It worked. In a guinea pig's eye, transplanted embryonic breast tissue gave milk, tissue from the testes produced sperm...
...legitimate, however. The father, Imperial Regal Heritage of the Jersey Island Jerseys (he had left home on the last ship before the Nazis moved in), achieved his parenthood through artificial insemination over the longest distance yet recorded. Sealed in two thermos jugs and packed in ice, the Imperial Regal sperm (diluted to serve 100 cows) took the long way round to Australia. It was flown across the Atlantic in a British diplomatic pouch to prevent its being opened and spoiled by unsympathetic customs...
...there is a gimmick in high-temperature operation. The "spermatogenic" cells, which produce the male sperms, will not tolerate as much heat as the somatic (body) cells. When sperm cells get too hot, they stop working, causing sterility. Even the normal temperature of the blood is often too high for them to function...
Warm-blooded animals get around this difficulty in various ways. Some of the more primitive creatures become cooler at certain seasons, so that their testes can manufacture sperm. In higher animals the testes, contained in the scrotum, outside the body, are cooled by the air to a temperature lower than the body...