material 2 6

Tag: "material" at biology news

Renewed hope for Parkinson's patients

...nts associated with impairment of a cell's genetic material -- the DNA damage pathway -- was exposure to radiation and chemotherapy drugs. They found that cells in which the DNA damage pathway was triggered were the ones that exhibited an increase in the expression of special proteins on the cell surface. Th...

Researchers find ways to turn manure into power

...ially ash content, Sweeten said. Ash, an unusable material as far as energy is concerned, was lower in the composted manure samples from the paved pens than the dirt pens ?20.2 percent compared to 58.7 percent. As a result, the low-ash manure had about twice the organic matter and heating value, he said. "T...

UW scientists report a new method to speed bird flu vaccine production

...to make non-virulent viruses that serve as the raw material for vaccines.The technique reported by the Wisconsin team improves upon a previous reverse genetics method (developed by Kawaoka's group in 1999) by significantly reducing the number of plasmid vectors required to ferry viral genes into the monkey ki...

Prions rapidly 'remodel' good protein into bad, Brown study shows

...eins can't replicate like DNA and RNA ?the genetic material in bacteria, viruses and other infectious agents ?the research helps explain the puzzling process of how prions multiply and spread infection. Satpute-Krishnan said the speed of protein conversion was surprising. "The prions were taking all the exis...

Scientists unpick genetics of first 15 minutes of life

...rker could be a useful way of tracking the genetic material an offspring inherits from either their father or mother. ...

Scientists closer to new cancer detection method

...ironmental engineering. "A cell contains a lot of material that absorbs and emits light when it's excited," Turro said. "That's been the problem. However, if you wait 10 nanoseconds, the signals from the native fluorescence go away. What's left is the signal from the probe, which is engineered to be more lon...

Studies on human genome variation provide insight into disease

...re intervals with more frequent traffic of genetic material ?regions with higher rates of gene conversion or recombination ?that are indicative of genomic instability," explains Morrow. "With this knowledge in hand, we hope to screen our patients and identify the genomic mechanism underlying this important d...

Housecat-sized Siberian tiger cubs get collared

...re intervals with more frequent traffic of genetic material ?regions with higher rates of gene conversion or recombination ?that are indicative of genomic instability," explains Morrow. "With this knowledge in hand, we hope to screen our patients and identify the genomic mechanism underlying this important d...

Researchers find Amchitka seafood safe for now

...nce that the likely path to the sea of any nuclear material that leaves the cavities created by the nuclear test shots will travel more slowly than previously thought. Challenge for the Future Vanderbilt's David Kosson drew an implication from the geophysical work he coordinated for this project: "In one se...

Study hints at role of stem cell genes in testicular, breast cancers

...lls in structure, and have duplications in genetic material on chromosome 12p13 that are associated with invasive seminoma (though no genes have been linked to the malignancy), the team had subsequently investigated two samples of seminomas, to see if the genes were expressed at elevated levels. They were, as...

Beach pollution is worst during new and full moon

...ery" source, including beach sands, decaying plant material and polluted groundwater. "Beach sands and wrack [piles of seaweed and animal remains that wash ashore] have been shown at freshwater beaches to harbor fecal indicator bacteria and even pathogenic bacteria," Boehm says. "Beach managers who want to im...

Researcher uncovers details of how cancer spreads

...teins not allowed entry is called MT1-MMP. As this material accumulates on the cell surface, it degrades the connective tissue that holds the cancerous cell in place. The build-up of MT1-MMP also activates an enzyme called MMP2, which further degrades the connective tissue. In this way, the cancer cell loses ...

Customized gene chip provides rapid detection of genetic changes in children's cancer

...egions of chromosomes for signs of deleted genetic material known to play a role in the cancer. The investiga...that contain tightly ordered selections of genetic material upon which sample material can be tested. When DNA bases from a sample bind to complementary sequenc...

Kenya halts first field trials of GM maize

...he pest. The GM plants, which incorporate genetic material from a bacterium called Bacillus thuringiensis, have already been grown under experimental conditions in IRMA's US$12 million 'biosafety' greenhouse ( see $12 million greenhouse signals Kenyan GM commitment ). When the first IRMA maize seeds were s...

Mammalian Transcriptome Mapped

...NA, though, it was concerned with RNA, the genetic material that is transcribed from DNA. Basically, the project amounted to fishing all the RNA out of a variety of tissues and cells and sequencing the pieces that were found. While genomic DNA is comprised of some 3 billion "nucleotide" bases in humans and o...

Embryonic stem cells accrue genetic changes

...tem cell lines accumulate changes in their genetic material over time. The findings do not limit the utility...he researchers examined whether the cells' genetic material had shifts in marks that sit on genes and are passed from cell to cell during cell division. These s...

Oysters: The natural way to protect our shores

... which usually necessitate placement of additional material over time to maintain their effectiveness," authors, Bryan P. Piazza, Patrick D. Banks, and Megan K. La Peyre state. The authors evaluated the effectiveness of six experimental shell reefs on both low and high wave energy shorelines in coastal Louis...

Mouse genome much more complex than expected

...e complex than was hitherto supposed. The genetic material of mammals, the DNA, can be compared to an enormou...leave the cell nucleus. They consist of a DNA-like material known as mRNA. Each mRNA contains the blueprint for precisely one specific protein ?this at least ha...

'Nanospheres' that block pain of sensitive teeth

...2005 shows that creating tiny spheres of a ceramic material called hydroxyapatite could be a long term solutio...res of hydroxyapatite. Hydroxyapatite is a ceramic material which is highly compatible with teeth and bone and so is widely used by medics for bone grafts or de...

University of Delaware researchers develop cancer 'nanobomb'

... carbon nanotubes and nanoparticles intact. If the material finds its way to the kidney or accumulates in the blood vessels, the nanoparticles might cause blockage and create problems, Panchapakesan said. Furthermore, the nanobomb route is probably the only way to use nanotubes without any cytotoxicity as the...

1 2 3 4 5 6 7 8 9 10