Word: carrell
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...Alexis Carrel of the Rockefeller Institute, has a way of calculating physiological age. He takes blood serum and centrifuges it until the serum is free of cells. In the serum he cultures pure tissue or tissue cells, generally fibroblasts. Simultaneously he cultures the same sort of tissue in a saline solution. The older a person is (physically) the slower will his tissues grow in his serum. The ratio of tissue growth in serum to tissue growth in salt solution is Dr. Carrel's "growth index...
...with its efficiently equipped laboratories and hospitals on the west bank of the East River, Manhattan, has contributed to science many a life-saving discovery: curative sera for one of the fatal forms of pneumonia and for epidemic cerebrospinal meningitis; the microbes causing infantile paralysis and yellow fever; the Carrel-Dakin method of treating infected wounds...
...found that they grew in "a surprisingly natural way" (TIME, Oct. 4), ripped bits of living tissue from the eyes of chicken embryos. These bits he placed in hollow glass slides and kept in incubators. Every 48 hours the detached tissue cells reproduced themselves, proving as Dr. Alexis Carrel has been doing for almost 15 years with his chicken-heart tissue (TIME, Nov. 30, 1925), that cell life can be maintained immortal apart from the parent body. They must, of course, be kept at proper temperature, be given proper nutrition, be kept from bacteria and have the products of their...
...paramecium, in captivity. It has reproduced itself 8,500 generations (the equivalent of 250,000 years for humans), and has yet died no natural death. Dr. Thomas H. Morgan of Columbia found that 1/250th part of a worm will regenerate and become younger than the original worm. Dr. Alexis Carrel of the Rockefeller Institute for Medical Research has kept a chicken's heart alive and growing for 15 years, longer than any ordinary chicken ever lived. Dr. Carrel sailed for a vacation on the Continent last week...
Cell-immortality is not a new demonstration. It has already been demonstrated that one-celled animals can live indefinitely. But from single-celled animals there is a wide gap. Dr. Carrel's chickenheart-tissue is not a chicken. It is in effect a group of single cells living individually in an ideal environment without mutual interdependence. The real importance of the experiment is that it may furnish important information on the processes of tissue growth...