منابع مشابه
New ribosomes for new memories?
Widely thought to be a housekeeping process, the regulation and synthesis of rRNA emerges as a potentially central mechanism for the maintenance of synaptic plasticity and memory. We have recently shown that an essential component of late-phase synaptic plasticity is rRNA biosynthesis - the rate-limiting step in the production of new ribosomes. We hypothesize that a particular population of rib...
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Misleading information presented after an event can lead people to erroneous reports of that misinformation. Different process histories can be responsible for the same erroneous report in different people. We argue that the relative proportion of times that the different process histories are responsible for erroneous reporting will depend on the conditions of acquisition, retention, and retri...
متن کاملMaking room for new memories
y faking its own death, Leishmania can gain access to macrophages. Once in the macrophage, say Marcello André Barcinski (Universidade de São Paulo and Instituto Nacional de Câncer, Rio de Janeiro, Brazil) and colleagues, the fake death signal then suppresses the host's ability to kill the invading parasite. Leishmania makes the fake death B Blocking PS (right) reduces Leishmania infection (arro...
متن کاملNew plans for wild areas
A move by the US government to preserve more public lands as wilderness has been welcomed by environmentalists but has angered ranchers, sportsmen and energy companies that fear access to land will be reduced. The new policy, initiated at the end of last year, directs the Bureau of Land Management to survey its vast holdings from Alaska to Arizona in search of unspoilt wildlife areas. The agenc...
متن کاملNaked dense bodies provoke depression.
At presynaptic active zones (AZs), the frequently observed tethering of synaptic vesicles to an electron-dense cytomatrix represents a process of largely unknown functional significance. Here, we identified a hypomorphic allele, brpnude, lacking merely the last 1% of the C-terminal amino acids (17 of 1740) of the active zone protein Bruchpilot. In brpnude, electron-dense bodies were properly sh...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/340005a0