Tag: Mouse

ScienceDaily (Mar. 8, 2010) Rapamycin, a drug that keeps the immune system from attacking transplanted organs, may have another exciting use: fighting Alzheimer's disease. The drug -- a bacterial product first isolated in soil from Easter Island -- rescued learning and memory deficits in a mouse model of Alzheimer's, a team from The University of Texas Health Science Center at San Antonio reported on Feb. 23.

ScienceDaily (Jan. 25, 2010) Some mouse sperm can discriminate between its brethren and competing sperm from other males, clustering with its closest relatives to swim faster in the race to the egg. But this sort of cooperation appears to be present only in certain promiscuous species, where it affords an individual's sperm a competitive advantage over that of other males.

The work is described January 21 in the journal Nature by biologists Heidi S. Fisher and Hopi E. Hoekstra of Harvard University.

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