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Tag: "still" at biology news

Man and mouse share genome structures

...the molecular basis of disease. "The human genome still has many surprises lurking within it," said Lander, director of the Broad Institute and senior author on the study. "One of the most important is the mystery of how genes are turned on. The ability to take global views of chromatin in human cells hol...

Growth in the sea comes down to a struggle for iron

...nty, acting as though iron, an essential nutrient, still is in short supply. Why this happens is unclear, but the answer could be that iron sets off a kind of chemical warfare in the marine ecosystem, according to University of Maine oceanographer Mark Wells. And diatoms may not always come out on top. In...

Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs

... to increase thenumber of white blood cells. It is still considered experimental,however, for use to increase the level of EPCs in patients withperipheral vascular disease.The investigators are seeking patients in whom prior treatments,including surgery or angioplasty, have been unsuccessful, or patientsfo...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

...umans, the percentage of totalsialic acids present still ranged from 5 to 17 percent.Varki and his team not...ecializedmedia used for growth and differentiation still contain materials fromanimal sources and are hence contaminated with Neu5Gc.In addition to using hum...

The secret to longevity in tubeworms

...pothesis--albeit one with much to support it--that still awaits direct confirmation. By providing a model in which this hypothetical interaction provides real benefits and explains real observations, the authors hope to stimulate further research into the biology of the enigmatic and beautiful L. luymesi. ...

Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates

...umantrials over 15 years ago, however the field is still in its infancy.Researchers from Kyoto University have now shown thatdopamine-producing neurons (DA neurons) generated from monkey embryonicstem cells and transplanted into areas of the brain where these neuronshave degenerated in a monkey model of Pa...

Ecological destruction fuels emerging diseases

...the real work has only just begun. The researchers still have a very poor to non-existent understanding of the roles these thousands of parasites play in different diseases, something that will require a detailed understanding of their often complex multi-host life cycles. "It's very difficult to link the...

Study Links Ebola Outbreaks To Animal Carcasses

...ness of this risk in communities where bushmeat is still a source of sustenance and continued monitoring of wildlife in the region. We have identified a 'win ?win' opportunity by using this information to both protect endangered apes from illegal hunting and to protect humans from deadly outbreaks." The p...

HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs

...emphasize that the drugs' therapeutic benefits are still greater than the risk of heart problems linked to their use. They urge physicians to apply this new finding by following their patients more closely over the long term, and by looking specifically for heart rhythm irregularities in vulnerable individ...

Research on Worms Yields Clues on Aging

...ce" forever; a way to slow orstop aging. While its still nowhere to be found, we are makingprogress; in worms. Researchers found that an epilepsy drug used inhumans had the unexpected effect of prolonging the life span of C.Elegans: A class of anti-seizure medications slows the rate of aging inroundworms, ...

Scientists find missing enzyme for tuberculosis iron scavenging pathway

...1347c is not involved in antibiotic resistance, it still remains a target for the design of new anti-TB drugs. "Enzymes that synthesize mycobactin are drug targets, because if mycobactin biosynthesis is stopped, the bacterium cannot acquire the iron that it needs for survival," explains Dr. Baker. "Importa...

Improved Outcomes Releases GeneLinker(TM) Gold and Platinum Version 4.6

...oinformatics at IOS."Despite our new focus, we are still enhancing our products for geneexpression data analysis. We've added additional data import scripts tohandle Koadarray ratio and two-color data (including confidencevalues). Koadarray is very easy to use and produces better results thanother leading ...

Found: Missing sequence of the human Y chromosome

... substantial sections ofchromosomal sequences were still missing.The Y chromosome, a sex chromosome that is specific to the human male,has posed a particular challenge to researchers attempting to decodeits sequence. It contains an extraordinary abundance of repetitiveelements, including transposons and ta...

The secret lives of whales

...c populations of the great whales are estimated to still survive, Smith speculates that substantial species extinction may have occurred in the whale fall fauna. “The deep ocean appears to be a major reservoir of biodiversity on the planet. Some of the oddest animals ever discovered occur on whale falls,?s...

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...nucleic acid molecules that have been degraded but still contain useful information scientists at MatrixDesign are able to create a template from which to multiply the genetic material. That process is repeated until the genetic material is substantially representative -- at microscopic levels -- of the sp...

Gene therapy converts dead bone graft to new, living tissue

...ne, unlike any other tissue in the human body, can still perform one of its functions, structural support, even if all its cells are completely dead. A serious problem arises, however, when the bone wears over time. "Everyday activities cause microscopic fractures in our bones," explains Schwarz. "Those f...

Researchers reveal the infectious impact of salmon farms on wild salmon

...ink and chum salmon leave their natal rivers while still much smaller than your baby finger ?3 cm long ?and weighing only half a gram. "The youngest fish can be only days old when they encounter a farm," says Krkosek. "Some of these fish are so young their egg sacks haven't been fully absorbed ?even fish t...

Molecular machine may lead to new drugs to combat human diseases

...ts in cells because cells are organized in ways we still don't fully understand. This crystal structure sho...e unknown until the late 1970s, and scientists are still investigating their function. Crystallization of the complex is one tool to determine their purpose....

Jefferson Virologists Coax HIV Out of Hiding

... While HAART manages to keep the virus at bay,it’s still quite capable ?given the right opportunity ?of replicatingand wreaking havoc on the body’s immune system.Now, virologists at Jefferson Medical College, led by Roger J.Pomerantz, M.D., professor of medicine, biochemistry and molecularpharmacology and ...

Needling Chromosomes Reveals Cell Division Secret

...ther the researchers would knowthe chromatids were still attached. Paliulis was a Duke graduatestudent when...cell. Nicklasbelieves that the twin chromatids may still have some entanglementsbetween the corresponding DNA strands on each chromatid. DNA, whichmakes up g...

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