Posted by: Dan | June 24, 2007

Cells Weekly #35

“Science is not only compatible with spirituality; it is a profound source of spirituality.”
-Carl Sagan

Weekly cell and molecular metablogging…

Mystery Rays from Outer Space:


Small Things Considered:

Adaptive Complexity:

Public Rambling:


Encephalon #25, Gene Genie #9, Birds in the News 88, Tangled Bank #82, 63rd Skeptics’ Circle

And five ScienceDaily picks, below the fold:

How ‘Memory’ T Cells Curb The Spread Of Viruses Throughout The Body

A scientific discovery helps explain how “memory” T cells protect the body from viral diseases. The research shows lymph nodes are not just organs where immune cells reside and proliferate, but also are the sites where a major fight against the spread of an invading virus occurs.

Modeling Cell Division: How A Cell Interacts With Its Microenvironment

Division is a key step in the life of cells and involves complex dynamic interplay between a large number of molecular components. Biologists and theoretical physicists have now devised a theoretical model of cell division of great predictive value.

Scientists Switch Gene Expression On And Off In Neurons

Genes which had been inactive in neurons during early mouse development can become functionally silenced in the adult brain, according to a new article. Switching gene expression “on” and “off” is of utmost importance when studying gene function in the adult nervous system.

Surprising Origin Of Cell’s Internal Highways

Scientists have long thought that microtubules, part of the microscopic scaffolding that the cell uses to move things around in order to hold its shape and divide, originated from a tiny structure near the nucleus, called the centrosome. Researchers now report a surprising new origin for these cellular “highways” — the Golgi apparatus.

Donated Embryos Could Result In More Than 2,000 New Embryonic Stem Cell Lines

In a survey of more than 1,000 infertility patients with frozen embryos, 60 percent of patients report that they are likely to donate their embryos to stem cell research, a level of donation that could result in roughly 2,000 to 3,000 new embryonic stem cell lines.



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