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Tag: "uses" at biology news

Math that powers spam filters used to understand how brain learns to move our muscles

...lied to the workings of a brain is that each brain uses what it already knows to “predict” or “believe” that something new will happen, then uses that information to help make it so. “We used the idea that prior experience and belief affect th...

How sneaky HIV escapes cells

...hobos on a train, HIV, the virus that causes AIDS, uses a pre-existing transport system to leave one infected cell and infect new ones, Hopkins scientists have discovered. Their findings, published in the June issue of Plos Biology, counter the prevailing belief that HIV and other retroviruses can only le...

Study shows big power of small RNAs, not just proteins, in halting cancer

...ily of miRNAs, known as miR-34. The fact that p53 uses miRNAs to stop tumor cell growth reveals a completely new dimension of this critical cancer fighting pathway and its ability to trigger the genetic death of cancer cells. “Our findings certainly lead to a deeper understanding of a critical tumor su...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...000 in Nature Biotechnology showed the approach he uses works well, at least in blood vessels. “Now we want to try this on eggs and ovarian tissue and see if we can develop a robust technology and improve outcomes,” Dr. Song says. Later, researchers will put ovarian tissue preserved both ways into mice...

Brightening prospects of using fluorescent nanotubes in medical applications

...e planning. Jansen has been pursuing research that uses gold nanoclusters to burn away cancer cells. He has developed a selective method for attaching the gold clusters to the surface of tumors and then exposing them to wavelengths of light that cause them to grow hot enough to destroy nearby cells. The a...

Genetic factors are linked to fever following smallpox vaccination

...fety and potency of stored smallpox vaccine, which uses live vaccinia virus, some individuals developed fevers. The authors of the study, Samuel L. Stanley Jr., MD, and colleagues at Washington University, St. Louis University, and The Emmes Corporation, hypothesized that people who develop fever after v...

Could fungal collection hold the key to new life-saving drugs?

...new drugs for serious diseases.” CABI currently uses its fungal collection, along with the expertise of its scientists to offer a range of services to businesses, including fungal identification, sales, preservations, patenting, training and consultancy. The partnership with SIDR will see CABI’s colle...

Exploring the dark matter of the genome

... comes from sequencing heterochromatin." Smith uses the metaphor of dark matter to suggest the significance of heterochromatin. "We don't know what holds the galaxies together, and the same is true of the genome. We're pretty good at understanding how individual genes work, but we don't understand, fo...

Research finds that circadian rhythms dominate all life functions

...ious studies have failed, the Colorado State study uses advanced algorithms that have the capacity to identify patterns in such a large number of genes. Ptitsyn discovered that gene activity oscillates in a "finely orchestrated" system and gene expression can be impacted by daylight and darkness -- or ...

Surprising origin of cell's internal highways

... part of the microscopic scaffolding that the cell uses to move things around in order to hold its shape and divide, originated from a tiny structure near the nucleus, called the centrosome. Now, researchers at Vanderbilt University Medical Center reveal a surprising new origin for these cellular "highw...

New vaccine prevents CMV infection and disease in mice

...an ‘Achilles’ heel’ in the defenses that the virus uses to evade the immune system,” said Spector. “The virus has evolved to persist in the host by evading the immune responses either by hiding or by misdirecting the host’s immune responses. We found a way to teach the host immune system to not be trick...

St. Jude study shows genes play an unexpected role in their own activation

...hooses which co-factors, or helper molecules, CREB uses to activate that gene. This finding adds an import...sts thought that a particular transcription factor uses the same co-factors to activate all its target genes. The new findings showed that phosphate-tag...

How plague-causing bacteria disarm host defense

...roadblock along several cellular pathways that Gq uses to deliver the alarm," said lead author Lorena Navarro, Ph.D., post-doctoral researcher in the lab of the study's principle investigator, Jack E. Dixon, Ph.D., professor of Pharmacology and Cellular and Molecular Medicine at the UCSD School of Medici...

Moths mimic sounds to survive

...e first to definitively show how an animal species uses acoustic mimicry as a defensive strategy. The research was conducted by Jesse Barber, a doctoral student in biology at Wake Forest. William E. Conner, professor of biology at Wake Forest, co-authored the study. In response to the sonar that ba...

'Insulator' helps silence genes in dormant herpes virus

...ing the insulator. Knowing what genes the virus uses to hide and re-emerge could give pharmaceutical companies targets for designing drugs that disrupt those mechanisms. The studies also have implications for treating and manipulating other types of viruses, Zhou says. "This study provides one of fi...

How the brain's backup system compensates for stroke

...s in brain activity. This brain-scanning technique uses harmless radio waves and magnetic fields to measure blood flow in brain regions, which reflects brain activity. The researchers found that the magnetic pulses to the left PMd briefly disrupted the subjects' performance on the task, but that perfor...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...e discovered that a cousin of the plague bacterium uses a single gene to out-fox insect immune defences and kill its host. In research published in the journal Proceedings of the National Academy of Science, scientists have found that Photorhabdus bacteria produce an antibiotic which inhibits the work of...

The sound of proteins

...ram, written by a collaborator Frank Pettit, which uses their translation rules to convert amino acids into music and hope it will speed up the translation of large segments of genomes. Further examples of converted proteins and the computer program are accessible for online use [ www.mimg.ucla.edu/facult...

Maggots rid patients of MRSA

...l silver dressings and the biogun treatment, which uses ionized air to create superoxide radicals and eradicate bacteria. Professor Boulton said: "This is very exciting. We have demonstrated for the first time the potential of larval therapy to eliminate MRSA infection of diabetic foot ulcers. If confi...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...isteria seems to use the same pathways that a cell uses to crawl. So anything that blocks Listeria we predict would also block neutrophils from crawling. And that's what we found."...

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