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Tag: "programmed" at biology news

Bacteria ferry nanoparticles into cells for early diagnosis, treatment

...low," Akin said. Certain bacteria are naturally programmed to dissolve vesicle membranes, a critical step to delivering the cargo. The nanoparticles are referred to as "smart" because they release their cargo at precisely the right moment after entering the cell. "At the same time that the bacteria are br...

Staphylococcus aureus hides out in cells

...rch team. “S. aureus then benefits from natural or programmed cell death to re-emerge and trigger another episode of infection, leading to chronicity.”...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...cell to grow and multiply ?long after the cell was programmed to die," he explained. "After two or three generations of this process, we suspect that the high-jacked T-cells mutiny over the normal T-cells, sparking the body’s immune reaction against itself." The next step is to identify what the T-cells a...

Heart failure: Intervention possibilities from imaging programmed cell loss

... medicine technique and molecular imaging to "see" programmed cell loss—the body's normal way of getting rid of unneeded or abnormal cells—may help in early identification of those individuals who are at risk of developing heart failure, say researchers in the April Journal of Nuclear Medicine. "Our study indi...

Scientists find genes involved in the battle between Hessian flies and wheat

... larvae keep trying to open doors because they are programmed to look for a feeding site. "In resistant plants, the doors are all locked. Then the larvae finally crawl down to the base of the plant and die. This is death by frustration." Hessian flies can be controlled by using specifically bred wheat var...

Researchers identify gene involved in dog size

...ething about how skeletal body size is genetically programmed in humans. We also will increase our data set of genes likely to play a role in diseases such as cancer, in which regulation of cell growth has been lost,?said Ostrander, noting that the role of the IGF-1 gene family in prostate cancer susceptibility...

Scripps research study shows humans and plants share common regulatory pathway

...ing pathways, cytokine production and apoptosis or programmed cell death. Despite the fact that various models of Nod1 activation have been described, little has been known about other proteins that might affect the protein’s activation. In contrast, a number of additional proteins have been linked to the activ...

Veterinary scientists explore poultry virus as cancer killer

...cell by a process called apoptosis - also known as programmed cell death or cell suicide- in the cell. ...

Africa's first large-scale HIV vaccine study launches

...V and cause the body to make killer cells that are programmed to recognize and destroy cells that are infected with HIV. The studies already completed with this vaccine suggest that it is generally well tolerated and that the response of the immune system or immunogenicity is high. In South Africa, the vacc...

Infection detectives use disease 'fingerprints' to track common infections in children

...ch of the infectious agent. "We are genetically programmed to respond differently to different infections. We have developed the tools to understand that," said Dr. Octavio Ramilo, professor of pediatrics at UT Southwestern and lead author of a study appearing in the March edition of the journal Blood . ...

Ethanol vehicles pose a significant risk to human health, study finds

...for a more detailed study,'' he wrote. Jacobson programmed the computer to run air quality simulations comparing two future scenarios: A vehicle fleet (that is, all cars, trucks, motorcycles, etc., in the United States) fueled by gasoline, versus A fleet powered by E85, a popular blend of 85 percent et...

Intravenous nanoparticle gene therapy shows activity in stage IV lung cancer

...mors after treatment. FUS1 can induce apoptosis - programmed cell death - in cancer cells but is frequently lo...ld of gene therapy. FUS1 can induce apoptosis - programmed cell death - in cancer cells but is absent in those cells. The FUS1 nanoparticle formulation was de...

Researchers hot on the trail of brain cell degeneration

...s in the brain are over-stimulated, which triggers programmed cell death, or apoptosis. The study shows that the Rho protein, which has long been recognised as an important player in cancer formation, also plays a key role in the destruction of neurons in disease. "These surprising findings add an entire pat...

Computer scientists join in search for ivory-billed woodpecker

...the National Science Foundation, Song and Goldberg programmed ACONE to distinguish birds from other objects and only record the birds with its two digital cameras, Arecont Vision's AV3100s. "It's a fast, flying object," Song said. "And also, the shape of the object ?the shape of the bird ?isn't regular. It'...

Protein found to shield pancreatic cancer cells from self-destruction

...tein in pancreatic cancer cells leads to a form of programmed cell suicide called autophagy, or self-digestion. ...so is separate from another, better known, form of programmed cell death called apoptosis. Apoptosis, like autophagy, is a normal biological defense mechanism ...

Reactivated gene shrinks tumors

...cell to destroy itself by undergoing apoptosis, or programmed cell death. When p53 is turned off by mutation or deletion, cells are much more likely to become cancerous, because they will divide uncontrollably even when DNA is damaged. In this study, the researchers used engineered mice that had the gene ...

Turning a cellular sentinel into a cancer killer

...id Lowe. "We expected the tumor cells to undergo programmed cell death, or apoptosis. But instead, we saw evidence for a very different process that p53 also regulates—senescence, or growth arrest. What really excited us was evidence that this senescence somehow triggered the innate immune system to kill the ...

Creating new life forms that may help eradicate cancer affecting women

...f bacteria created in Advaxis' laboratory that are programmed to kill off specific cancers. The Key: A Microbe Found in Dairy Products Central to this startling discovery is the microbe Listeria monocytogenes, a common bacterium found in milk, cheese and other dairy products. This microorganism apparent...

Researchers seek to design first treatment for neuroAIDS

...ns that signal too many human nerve cells to begin programmed cell death (apoptosis), a normally healthy process where old or damaged cells chose to die and be recycled. Furthermore, nerve cells exposed to HIV may lose their ability to pass on nerve signals long before the virus causes them to self-destruct. To...

Teenager moves video icons just by imagination

...ectrodes outside the brain on the scalp. Engineers programmed the Atari software to interface with the brain-machine interface system. Eric C. Leuthardt, M.D., an assistant professor of neurological surgery at the School of Medicine, and Daniel Moran, Ph.D., assistant professor of biomedical engineering, per...

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