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Tag: "mixture" at biology news

Genome sequencing reveals key to viable ethanol production

... millions of combinations of them may be the magic mixture to break down a particular biomass. So, Wu decided to make the bacterium do the work for him. "The bacteria know how to express just the right genes to break down any particular biomass substrate, and we wanted to know how they know to turn on a...

Scientists identify pancreatic cancer stem cells

...The purported cancer stem cells produced a diverse mixture of cells, some of which are not cancerous, that reflected an actual human pancreatic tumor, she said. The markers that define the highly aggressive pancreatic cancer subtype are not identically matched to those found in aggressive breast cancer, t...

Helium helps patients breathe easier

...en and 60 per cent helium. The helium-hyperoxia mixture improved the exercise tolerance of the patients by 245 per cent compared with air (21 per cent oxygen, 79 per cent nitrogen), by 56 per cent compared with hyperoxia (40 per cent oxygen, 60 per cent nitrogen) and 116 per cent compared with a "normal" ...

Scientists identify molecular cause for one form of deafness

...plays. Wong and his colleagues also found that a mixture of mutant espin and normal espin would prevent the structural transition from occurring. If gene expression could turn on the production of just a fraction of normal espin linkers, a kind of rescue attempt at restoring hearing could, in principle, be...

'Marathon mice' elucidate little-known muscle type

...chains. While most muscles in mammals contain a mixture of slow- and fast-twitch fiber types, some muscle beds are enriched for one type or the other, Spiegelman said. However, adult skeletal muscles also contain fibers with an abundance of a fourth MHC, type IIX, about which much less is known. IIX f...

Cancer-killing invention also harvests stem cells

...lls through a device, and make a more concentrated mixture containing, say, 20-40 percent stem cells. These stem cells could then be used for tissue engineering or bone marrow transplantation. This is a non-controversial way of obtaining stem cells that can be differentiated into other, useful cells. ...

RNA enzyme structure offers a glimpse into the origins of life

...ab of biochemist Andrew Ellington. Starting with a mixture of randomly synthesized RNA molecules and selecting for the desired properties, researchers are able to evolve RNA enzymes from scratch. In the Ellington lab, Robertson evolved the ligase ribozyme (called the L1 ligase) and determined which parts wer...

40,000-year-old skull shows both modern human and Neandertal traits

...odern humans spread through western Eurasia. This mixture would have resulted in both archaic traits retained from the Neandertals and unique combinations of traits resulting from the blending of previously divergent gene pools. "The ultimate resolution of these issues must await considerations of larger ...

Applied scientists create wrinkled 'skin' on polymers

...f microfluidic devices for particle separation and mixture and also have potential use in designing biosenors. The researchers have also started a close collaboration with scientists at the Harvard-MIT Division of Health Sciences and Technology aimed at exploring the behavior of living cells on these pattern...

Baby fish 'smell their way home'

...ives off its own unique chemical signature, a rich mixture of the proteins and amino acids emitted by corals, all the plankton and mucus from its life. We think baby fish can pick this up and distinguish it from other reefs. "We think some fishes then choose currents that smell like 'home' and swim up th...

Novel laboratory technique nudges genes into activity

... strands of RNA to perturb the delicately balanced mixture of proteins that surround chromosomal DNA, proteins that control whether genes are turned on or off. Dr. David Corey, professor of pharmacology and the paper’s senior author, said the results are significant because they demonstrate the most effe...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...tchen and produces hydrogen and carbon monoxide, a mixture called synthesis gas, or syngas, because it is used to make chemicals and fuels, including gasoline. The new process works 10 to 100 times faster than current technology, with no input of fossil fuels and in reactors at least 10 times smaller than cu...

Edible coatings will be the packaging of the future

...clable. Protection is currently carried out with a mixture of synthetic chemical compounds that are not completely biodegradable. One of the most popular alternatives in the last few years is the edible coating ?a transparent film that covers the food item and acts as a barrier to humidity and oxygen. Moreov...

Recycling technology

... crystal material is deposited. The material is a mixture of anywhere between 15 to 20 different compounds. ... that offers a clean, efficient way to recover the mixture of liquid crystals from waste LCD devices. Once recovered, the liquid crystal mixture will be recyc...

Drug can quickly mobilize an army of cells to repair injury

...sm instead of using the brute force of injecting a mixture of many cell types from bone marrow into the affected area." The research group has also shown that after treating human subjects with AMD3100 or G-CSF, angiogenic cells can be collected from the blood by a technique that separates them and concentr...

HIV gets a makeover

...with components from SIV. "Overall, the virus is a mixture of engineering and forced evolution," Bieniasz says. "It sounds simple, in theory, but it took us two years to do." Bieniasz and Theodora Hatziioannou, a research scientist in the lab and the paper's first author, had to overcome two major obstacl...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

... either or both of two concoctions: a blue-colored mixture of sugar and agar and a red-colored mixture of caffeine, sugar and agar. The researchers then flipped the flies onto their backs and looked at t...

Bird flu vaccine additive may stretch supply

...one-quarter of the norm when they added a chemical mixture known as MF59. The research is published in the November 1 issue of Clinical Infectious Diseases, now available online. MF 59 is an adjuvant--a substance that increases the immune system's ability to respond to a stimulus. For this research, the i...

MIT creates 3-D scaffold for growing stem cells

...nd a product called Matrigel, a gelatinous protein mixture secreted by mouse tumor cells. While Matrigel does resemble a complex extracellular environment, it also contains growth factors and unknown proteins that limit its desirability for experiments requiring precise conditions. "Synthetic biopolymer m...

Solvent exposure linked to birth defects in babies of male painters

...ut by a random sample of 398 painters exposed to a mixture of chemicals present in organic solvents and 302 carpenters with little or no exposure, in the period of three months before the last pregnancy. Workers employed as painters three months before their partners became pregnant were on average six times...

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(Date:4/17/2014)... cells in bone marrow need to produce hydrogen sulfide ... according to a new study from the Center for ... Dentistry of USC. , Professor Songtao Shi, principal investigator ... produced by the cells governs the flow of calcium ... signals that results in osteogenesis, or the creation of ...
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(Date:4/17/2014)... therapy improves general blood flow and alleviates muscle ... researchers at the University of Illinois at Chicago. ... print in the Archives of Physical Medicine ... vascular function in people who had not exercised, ... of their level of physical activity. , Improved ...
(Date:4/17/2014)... of Canadians surveyed said they would participate in public ... of genetic conditions, only 80 per cent said they ... sequence their newborns, genomes.,Most newborns in North America have ... two of life in which a tiny amount of ... about five to 54 conditions, depending on the state ...
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Breaking Medicine News(10 mins):Health News:Animal study provides first evidence that gel can prevent multiple virus transmission in vagina/rectum 2Health News:Massage therapy improves circulation, eases muscle soreness 2Health News:Researcher looks at public perceptions around newborn testing 2Health News:Researcher looks at public perceptions around newborn testing 3Health News:Scientists find new way to fight malaria drug resistance 2Health News:TGen honors Catherine Ivy and Craig Jackson with Leadership; Collaborative Spirit awards 2
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