منابع مشابه
Increased production of mutagenic metabolites of carcinogens by tissues from senescent rodents.
Activation of the procarcinogens benzo(a)pyrene and 2-fluorenamine by liver homogenates (S9) prepared from senescent male CFN rats and C57BL/6J mice resulted in an enhanced production of mutagenic metabolites when compared to young rodents, as indicated by an enhancement of the induced reversion frequency in a Salmonella typhimurium bioassay. Similar results were observed when carcinogen activa...
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In the best articles, generally those dealing with basic Chromosome Puffs research, the combination of depth and accessibility is impressive. One on Hox genes introduces the notion of The Science Times Book of Genetics a conserved body plan among species, illustrating the Edited by Nicholas Wade point with the fauna of Star Trek, and continues with New York: The Lyons Press (1999). 256 pp. an e...
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Only a very small number of the known substances is strongly carcinogenic. This indicates that carcinogenicity is linked to different qualities which all must be present to produce cancer. The various chemical reactions or qualities brought into relation with carcinogenicity reflect one or more of these factors. None of them seems to comprise all involved parameters. At the same time, none of t...
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How neural circuits underlie the acquisition and control of learned motor behaviors has traditionally been explored in monkeys and, more recently, songbirds. The development of genetic tools for functional circuit analysis in rodents, the availability of transgenic animals with well characterized phenotypes, and the relative ease with which rats and mice can be trained to perform various motor ...
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ژورنال
عنوان ژورنال: Science
سال: 1990
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.2402628