Word: sperms
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Dates: during 1940-1949
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...body. In Science last week Harvard Gynecologist John Rock and his assistant, Miriam F. Menkin, reported this scientific affront to womanhood. In a small watch glass, the two researchers put a human egg, cut from a woman's ovary. Next they put in some live male sperm. They let the mixture stand for an hour at room temperature, then placed it in an incubating flask with a culture of human blood serum. After 40 hours, they had a two-celled organism, the apparent beginnings of a human being...
Trial Rabbits. The Harvard experiments are a development from similar work on rabbits by Biologist Gregory Pincus at Clark University (TIME, March 12, 1934). Dr. Pincus, after fertilizing rabbits' eggs with sperm in glass, planted the resulting cells in a female rabbit's uterus and she bore normal, healthy bunnies.* Other investigators have nursed a monkey's egg, fertilized in its mother's body, to the eight-cell stage in glass. Six years ago Philadelphia's Cancer Specialist Stanley Philip Reimann, by pricking a human ovum with a glass needle, succeeded in stimulating...
...University of Wisconsin rabbit sperm was treated with sodium bicarbonate or lactic acid just before it was used for artificial insemination. Again there was no disturbance of the normal ratio of the sexes, but the lactic acid treatment greatly reduced fertility...
Editor Cook calls this evidence a "beautiful confirmation" of the genetic concept that sex is determined by a chromosome balance between sperm and egg. But the Iowa research offered no promise of immediate or even remote application to animals or humans. Not enough is known about their chromosomes and methods of controlling them...
...treatments, including thyroid pills, and especially a quiet, moderate life with plenty of exercise and nutritious food. (Farmers, says Dr. Hamblen, seldom have to worry.) Temporary sterility may be caused by fever, or a heavy dose of sulfanilamide. Serious physical hurts, such as damaged testes, are usually irreparable. Sometimes sperm ducts, like fallopian tubes, become obstructed, can occasionally be opened by a catheter...