chemically 2 5

Tag: "chemically" at biology news

Cancer researchers add spice to research against rare neuromuscular disease

... curcumin. Significantly, however, ASC-J9 has been chemically modified compared to its natural counterpart to make it much more powerful. Despite the promise it offers for Kennedy's disease, Chang notes that ASC-J9 must be rigorously screened for side effects and effectiveness, through clinical studies in peopl...

Gallium: A new antibacterial agent?

...gh and colleagues show that Gallium (Ga), which is chemically similar to Fe and can disrupt biological systems by substituting for Fe, inhibits the in vitro growth of Pseudomonas aeruginonsa; even multidrug resistant strains of P. aeruginonsa isolated from individuals with cystic fibrosis. Ga also prevented P. ...

Gene that makes people 'early to bed and early to rise' demystified

...dy's central clock in response to light--cannot be chemically modified by another enzyme that controls it. That failure leads to a reduction in the number of copies of the Per2 "message," and the characteristic shifted sleep pattern. Eventually, such insight into the factors influencing people's so-called ci...

Rapid, Low-Cost DNA Testing

...generally not enough DNA to analyze, so it must be chemically amplified. This also takes apprximately one hour. The new process comes after these two steps, saving a final hour of work for the technician, who ordinarily would be doing gel electrophoresis. Perhaps more important than the savings in time and m...

Anti-wrinkle compound causes pathological reaction in skin cells

...aging face-lifts." This compound, as well as other chemically similar ones, are also found in cosmetics, creams, lipsticks, shampoos, soaps, and baby lotions, although the way they work is not yet understood. In vitro tests conducted by Dr. Marceau’s team revealed that the application of DMAE induces a quick...

Hotspots of mercury contamination identified in eastern North America

...levels, it is concentrated up to a millionfold and chemically modified in aquatic food chains, resulting in dangerous levels of methylmercury in some wildlife species. Fish consumption advisories responding to mercury contamination exist in all the states and provinces included in the study, and loons are adver...

Mutation improves memory, may lead to memory-enhancing pill

...gulation." When the regulatory protein eIF2a is chemically modified with the addition of a phosphate to one of its amino acids, it switches on the protein synthesis of another factor that halts production of genes required for the long-term storage of memories. Sonenberg and his colleagues previously discove...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...oup successfully demonstrated that the caps can be chemically activated to pop open and release the cargo inside of animal cells. This unique feature provides total control for timing the delivery The team’s first attempt to use the porous silica nanoparticle to deliver DNA through the rigid wall of the pla...

New Brandeis research sheds light on memory by erasing it

...turate the memory stores. However, when CaMKII was chemically attacked and previous memory erased, it then became possible to insert new memories in the synapses. Alzheimer's and other diseases in which memory loss plays a major role will benefit from this new understanding. Of particular importance may be ...

More recycling on the farm could reduce environmental problems

...r example, regenerative agriculture could use some chemically treated fertilizer and would exploit robotic systems. The approach would entail more use of human labor, which is costly, and may reduce output per unit area farmed. Pearson summarizes studies of organic farming suggesting, however, that price pre...

Moths mimic sounds to survive

...ond sound-producing species even though it was not chemically protected. This is similar to the way birds avoid butterflies that look like the bad-tasting Monarch. The two species of bats used were big brown bats and red bats. Barber raised the bats in the lab so behavior learned in the wild would not influ...

Marine phytoplankton changes form to protect itself from different predators

...ainly surprising that a single-celled organism can chemically sense the presence of nearby consumers, identify those consumers and change in opposing ways depending on which consumers are present.” The behavior could have implications for global climate change because Phaeocystis blooms play a key role in th...

Herpes virus hijacks DNA repair process

...vation, orf36, is a kinase, a type of protein that chemically modifies other molecules to activate different processes or transmit signals. Genetic comparisons with several human herpes viruses revealed kinases similar to orf36 in the human viruses. Scientists then took a similar kinase from human Epstein-Barr ...

Cellular message movement captured on video

...ous structures in the cell cytoplasm.When actin is chemically removed, paxillin no longer moves and its fibrous structures disappear. “As least by showing that paxillin and actin filaments move together we have some insight into the possibility of how paxillin can transmit information from one region of the ...

Common cancer gene sends death order to tiny killer

...cer spread." To test their idea, the team first chemically damaged the DNA of two sets of colon cancer cells, one missing p53 and the other containing healthy p53. They then looked for any of the 500 known human microRNAs that are activated only in cells containing p53. It turned out that the miR-34a gene...

1 2 3 4 5