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Tag: "still" at biology news

Scientists rid stem cell culture of key animal cells

... is bovine in origin, is the other animal material still needed to culture stem cells. Xu became interested in unveiling molecules derived from the mouse feeder cells because, in their absence, stem cells start to differentiate within two to three days. Xu started by evaluating the effect of changing stem...

Experiments provide proof of how traveling in groups protects insects

...rs the scientists recovered, often with body parts still attached, Lorch said. Researchers retrieved several devices from trees and burrows. Two were lost entirely and, presumably because Mormon crickets can't fly, carried off a long way by birds and out of radio receiver range. "What this new work appear...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

...o rhyme with "road") Institute. "The human genome still has many surprises lurking within it," comments Lander, who is director of the institute. "One of the most important is the mystery of how genes are turned on. The ability to take global views of (chromosome packaging) in human cells holds tremendous...

Experiments provide proof of how traveling in groups protects insects

...rs the scientists recovered, often with body parts still attached, Lorch said. Researchers retrieved several devices from trees and burrows. Two were lost entirely and, presumably because Mormon crickets can't fly, carried off a long way by birds and out of radio receiver range. "What this new work appear...

Critical role in programmed cell death identified

...agment without instructing cells to die, the cells still die and when they block fragmentation, the cells survive; in other words, blocking fragmentation prevents cell death, inducing fragmentation provokes cell death. "This programmed cell death is so important and the more players we know that are invol...

Taking Aim With Nanoparticle PEBBLEs

...ice as long. With targeted PEBBLEs, some rats were still alive and active two months later, and MRI images showed that their tumors had vanished. Kopelman and coworkers plan to tinker with the PEBBLEs a bit more before trying them on larger numbers of rats, and PEBBLE-based cancer treatments for people ar...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...us isre-engineered to be propagation defective but still able to function asa delivery system for proteins ...he vector version of virusto reproduce itself, but still allowing the vector to express thetarget protein. For this study, the researchers inserted the gene ...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...us isre-engineered to be propagation defective but still able to function asa delivery system for proteins ...he vector version of virusto reproduce itself, but still allowing the vector to express thetarget protein. For this study, the researchers inserted the gene ...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...od. We now know we can use very low doses that are still effective, so that's good. But we need a safety ne... raised about GDNF. But many things remain that we still don't understand.?/p> The recent findings in laboratory animals were a joint effort of Lund Univ...

Researchers trace evolution to relatively simple genetic changes

...r to see how evolution occurred. Sticklebacks that still live in the oceans are virtually covered, from hea...t (the mutant gene) that controls this trait might still exist in the ocean fish. So we collected large numbers of ocean fish with complete armor, and we fou...

Scientists reveal molecular secrets of the malaria parasite

...ector. (Such antibodies arein the "blood meal" and still work for an hour or so after the mosquitobites).Another TIGR scientist who played an important role in the project isAssociate Investigator Jane Carlton, who had led the sequencing of P.yoelii. At TIGR, Carlton constructed a composite of all three ro...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...r to see how evolution occurred. Sticklebacks that still live in the oceans are virtually covered, from hea...t (the mutant gene) that controls this trait might still exist in the ocean fish. So we collected large numbers of ocean fish with complete armor, and we fou...

Studies reveal methods viruses use to sidestep immune system

...estigated why cells with functioning RIG-I protein still had persistent HCV infection. In a study to appear in PNAS, Dr. Gale and his group found an explanation for HCV's tenaciousness. Once HCV infects the cell, it launches a counterattack against RIG-I, producing a protein called a protease to disrupt th...

Scientists discover unique microbe in California's largest lake

...during protein synthesis, but its exactfunction is still unknown. The next challenge, Miller says, will be todetermine whether this example of instant evolutionary innovation bygenetic exchange has in fact had consequences for ribosome function inthese bacteria.The new species of Acaryochloris is the lates...

Potential Cure for Lymphoma in HIV patients

...fective antiviral drugs such as HAART, lymphoma is still a majorcause of suffering and death in HIV-infected individuals. It’simportant to know that stem cell transplant is an available and highlysuccessful treatment option for these patients,?said Amrita Krishnan,M.D., a staff physician at the City of Hop...

New SARS Protein Linked To Important Cell Doorway

... death. When the SARS virus first jumped from its still unknown animal reservoir to humans in late 2002, it caused approximately 800 deaths and 8,000 infections in several Asian countries. Months before SARS became available for direct study, Washington University researchers used the SARS genome, finishe...

Jumping gene helps explain immune system's abilities

...researchers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in ...the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of choi...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

...researchers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in ...the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of choi...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

...researchers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in ...the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of choi...

Gene sequencing explains bioremediation 'bug'

...researchers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in ...the immunesystem's 'a la carte' process happens is still murky," says Craig.But the a la carte approach provides great diversity from a limitednumber of choi...

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