ester in Biological News

Nanoparticle-delivered 'suicide' genes slowed ovarian tumor growth

...rch. Sawicki and colleagues at the Massachusetts Institute of Technology evaluated the therapeutic efficacy of a cationic biodegradable beta-amino ester polymer as a vector for the nanoparticle delivery of a DNA encoding diphtheria toxin suicide gene. These nanoparticles were injected into mice with pr...

Blue bananas

...means of various spectroscopic techniques, the team analyzed the structure of the main breakdown products. In doing this, they identified a propionate ester group, a modification never seen before in a chlorophyll breakdown product. This group has a stabilizing effect and could explain the unusually long d...

Cigarette after Valentine snuggle deadlier for some

...events at a relatively young age? We think we now know why. According to Moss, the answer lies is a common deviation of the gene CETP (cholesteryl ester transfer protein), a protein found in all people that controls cholesterol metabolism. Smokers with a common form of this gene are likely to suffer a ...

Kilogram quantities at last!

...he corresponding methyl esters. Why does this work" Whereas the citric acid ester crystallizes, the isocitric acid ester is a liquid. Separation then becomes childs play. Why was isocitric acid...

Past droughts geographically widespread in the West, according to tree-ring data

... into time much further than the records available from stream-flow gauges. ester said such reconstructions could provide important insights into the hydrolo...iver basin had at least eight droughts as severe as the 1950s drought. ester said the findings will help devise an assessment tool for implementing the ...