Word: rna
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Mainly concerned with research relating to bacterial metabolism, Amos has made several important contributions to the study of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid...
Recently, Amos' research has revealed that animal cells can receive messenger RNA from other cells and translate the messages so that the cell may produce proteins which it ordinarily is unable to make...
...structure of many viruses in their conventional forms is well known. They consist of a core of nucleic acid-either ribonucleic acid (RNA) or deoxyribonucleic acid (DNA)-wrapped in a protein overcoat. It is in this form that they are most readily detectable. And also, it appears, most active: the naked nucleic acid alone (stripped of its overcoat by delicate chemical means) can produce most of the effects of the whole virus, but it is a thousand times less powerful. Evidently, the researchers suggest, the virus needs to be "carefully packaged for safe transmission." One effective package design is like...
...Human RNA was not available, so Dr. Cameron settled for a similar chemical: RNA extracted from a yeast. Repeated massive, intravenous doses gave the patients stomach upsets and cramps, which required additional medical treatment. But patients suffering from hardening of the brain's arteries and a group classed as presenile showed marked improvement in their memory of recent events. More advanced cases (listed as senile) got no better, Dr. Cameron told the Society of Biological Psychiatry, but he and his researchers are encouraged. They are working on ways to reduce RNA's undesirable side effects and are trying...
McConnell and colleagues are now try ing to extract RNA and capture the flat-worm's tail-end chemical memory. They feel sure that if they succeed, some enterprising drug company will be able to synthesize the modified RNA. "If transfer of memory should be valid for man as well as worm," said Dr. McConnell as he indulged in a flight of fancy at a San Francisco conference, "why should we waste all the knowledge a distinguished professor has accumulated, simply be cause he's reached retirement...