Scientists say they’ve developed a new and easier way to create what’s known as pluripotent stem cells – cells that can develop into one of many cell types for use in regenerative medicine.
Half a protein is better than none, and in this case, it’s way better than a whole one. A Rice University lab has discovered that dividing a particular fluorescent protein and using it as a tag is handy for analyzing the workings of live cells, particularly in the way they employ iron-sulfur clusters.
STANFORD, Calif. — Like a child awaiting the arrival of Christmas, embryonic stem cells exist in a state of permanent anticipation. They must balance the ability to quickly become more specialized cell types with the cellular chaos that could occur should they act too early (stop shaking those presents, kids!). Researchers at the Stanford University School of Medicine have now identified a critical component, called Jarid2, of this delicate balancing act — one that both recruits other regulatory proteins to genes important in differentiation and also modulates their activity to keep them in a state of ongoing readiness.
The premise that hunger makes food look more appealing is a widely held belief – just ask those who cruise grocery store aisles on an empty stomach, only to go home with a full basket and an empty wallet.
The premise that hunger makes food look more appealing is a widely held belief – just ask those who cruise grocery store aisles on an empty stomach, only to go home with a full basket and an empty wallet.
An investigation by the University of Kansas’ Adrian Melott and colleagues reveals a promising new method of detecting past comet strikes upon Earth and gauging their frequency
LAWRENCE, Kan. — It’s the stuff of a Hollywood disaster epic: A comet plunges from outer space into the Earth’s atmosphere, splitting the sky with a devastating shock wave that flattens forests and shakes the countryside.
Cells are not static. They can transform themselves over time — but change can have dangerous implications. Benign cells, for example, can suddenly change into cancerous ones.
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