activate

Lead activates protein kinase C in immature rat brain microvessels.

(The Nazis combined ethnocentrism and a racist ideology to kill millions.) Finally, it must be recognized that competition for wealth, power, and prestige in a society activates the destructive potential and encourages direct and indirect expressions of aggression.

Davis notes, "We haven't shown directly that ethanol activates VR1 in a body."

In addition, [10.sup.-9] M BPA via the ncmER activates the transcription factor CREB (Quesada et al.

As a result, researchers have suspected that the chemical activates the same sensory receptors on cells that alert animals to cool temperatures.

Agonist binding of A[T.sub.1]R activates mitogen-activated protein kinases (MAPKs; Touyz and Schiffrin 2000), a common early signaling event induced by PM exposure (Roberts et al.

Akira acknowledges that his team hasn't identified the substance that naturally activates TLR7.

Further investigation revealed that the fly protein recognizes a separate insect protein produced during a fungal infection and in turn, activates the fly's immune response.

The gonadotropins FSH and LH bind to specific G-protein-coupled receptor sites to stimulate adenylate cyclase and the accumulation of cAMP, which activates enzymes involved in steroidogenesis (Hsueh et al.

Researchers now report that a protein that activates the p53 promoter is frequently missing in breast cancer cells.

Assaying an unknown agent in parallel with tumor promoter TPA, EGF, or TNF[kappa] at their threshold concentrations for promotion of transformation will allow one to determine whether exposure to the unknown agent alone activates transcription factor at levels that exceed transformation-relevant thresholds.

Last October, toxicologists at the University of California, Davis reported the surprising finding that carbaryl, a widely used insecticide, also activates the Ah receptor (SN: 11/28/98, p.

We postulate that oxidative or bacterial stress that activates the ERK-2 pathway during development could contribute to the morphologic anomalies seen in frogs, especially those involving mesodermal derivatives such as bone and muscle differentiation in the limbs.

This unexpected union only activates genes in the presence of a matchmaker protein called [ARA.sub.70], however, reports a research group led by Chawnshang Chang of the University of Rochester (N.Y).