Reviving the antibiotic miracle?
نویسندگان
چکیده
منابع مشابه
Reviving the Exosome
In the nucleus of eukaryotic cells, RNA decay in the 3'-5' direction is carried out by a complex of exonucleases called the exosome. Surprisingly, the purified exosome shows only weak activity in vitro. Two papers in this issue of Cell, by LaCava et al. (2005) and Wyers et al. (2005), and a third report by Vanacova et al. (2005) help to solve this riddle by characterizing a new RNA decay-activa...
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Individuals become functionally organized to survive and reproduce in their environments by the process of natural selection. The question of whether larger units such as groups and communities can possess similar properties of functional organization, and therefore be regarded as "superorganisms", has a long history in biological thought. Modern evolutionary biology has rejected the concept of...
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Professional journals these days brim with new developments in the field of antimicrobial resistance, and scarcely a week goes by without a flurry of new reports on “super bugs” in popular media. Given the unrelenting blitz of information, that 2 selfproclaimed “fusty old pedants” could produce a fresh perspective in the ongoing arms race between man and microbe is all the more noteworthy. Alth...
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A method is described enabling the direct measurement of vincristine resistance in intact tissues in vivo by morphological study. Using the metaphase arresting properties of the drug, counts were made of escaping anaphase and telophase mitotic figures at a range of doses. The proportion of post-metaphase mitotic figures is called the post-metaphase index (PMI). In 95 primary intestinal tumours ...
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ژورنال
عنوان ژورنال: Science
سال: 1994
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.8153615