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Tag: "controlling" at biology news

Genes affecting blood pressure change as children become adults

...ransform into adults some of the genes involved in controlling their blood pressure change as well, according to a study of more than 500 pairs of twins. The study of black and white identical and fraternal twins showed that changes in gene expression between ages 14 and 18 accounted for up to one third of the ...

Protein found to control tumor growth in certain breast cancers

...growth and suggest a potentially new mechanism for controlling this type of breast cancer. Unraveling the intricate mechanisms of this previously unknown pathway opens up the potential for future development of novel therapeutics, and will hopefully stimulate researchers to take a fresh look at the Nod1 protein...

New crop of technology reveals plant health

...or more or less light. Essentially, the plants are controlling the system," she continues. The system uses an infrared camera to scan the entire crop canopy. It can automatically detect when individual or groups of plants are getting too hot. Another sensor detects chlorophyll fluorescence, which tells the syst...

Study reveals mass migration of mormon crickets driven by hunger, fear

... lead to more environmentally friendly tactics for controlling large swarms of insects. ...

Researchers identify genes in fruitflies that may shed light on human cancer spread

...tions for understanding cell migration and perhaps controlling cancer cells that move similarly to spread beyond an original tumor, which are what eventually kills most cancer patients. The research identified several hundred genes that are preferentially turned on in so-called border cells of the fruitfly ovar...

New pathways for autoimmune treatment identified

...the Aire gene is involved in negative selection by controlling some protein expression in the thymus, Dr. Mi says. The thymus is supposed to express most body proteins so any T cells that would react to them can be eliminated through negative selection, he says. "But Aire's role in protein expression is not suff...

One-third of adults with diabetes still don't know they have it

...of getting type 2 diabetes. If you have diabetes, controlling your blood glucose, blood pressure, and cholesterol will prevent or delay the complications of diabetes." The researchers also found that: nearly 22 percent of people age 65 and older had diabetes. about 13 percent of non-Hispanic blacks age 20 ...

Mice lacking key immune component still control chronic viral infections

...look at what immune system elements play a role in controlling chronic viral infections." The study will be published in the May issue of Public Library of Science Pathogens. In chronic herpes virus infections, the body brings the invader under control, reducing its replication and spread, but is unable to c...

Many cleaners, air fresheners may pose health risks when used indoors

...'ve focused a lot of effort in the last decades on controlling the big sources of air pollution and on the chemicals in consumer products that contribute to outdoor ozone formation. However, now we've learned that we need to pay attention to other aspects of pollution sources that are right under our nose," said...

With few factors, adult cells take on character of embryonic stem cells

...evelopment. "The finding is an important step in controlling pluripotency, which may eventually allow the creation of pluripotent cells directly from somatic cells of patients," Yamanaka said. While the findings could have wide applications, stem cell experts caution that the study of embryonic stem cells ha...

Johns hopkins researchers find link between cell's energy use and genome health

...rgy, the acetyl part of acetyl-CoA also is used in controlling how tightly DNA is wrapped in the chromosomes. More acetyl on chromosomes leads to looser wrapped DNA. And locations along chromosomes that contain looser wrapped DNA appear to be regions where genes are turned on. When the research team removed t...

'Micro-boxes' of water used to study single molecules

...ers; research is continuing to improve methods for controlling droplet size for different applications. ...

Virus has 'catastrophic' affect on red squirrels, research shows

...pted management strategy and already works well in controlling populations of species like the deer and rabbit. It's a practical and affordable solution." Tony Sainsbury, Lecturer in Wild Animal Health at the Zoological Society of London (ZSL), commented: "The cases seen by ZSL's national red squirrel disease...

How HIV 'exhausts' killer T cells

...mbers of these immune cells, they don't seem to be controlling the virus at all." An important clue to why killer T cells stop functioning after infection came from earlier studies in mice, which were published by co-author Rafi Ahmed of Emory. Ahmed found that chronic viral infection actively inhibits T c...

A new tool against brain disease

...mbers of these immune cells, they don't seem to be controlling the virus at all." An important clue to why killer T cells stop functioning after infection came from earlier studies in mice, which were published by co-author Rafi Ahmed of Emory. Ahmed found that chronic viral infection actively inhibits T c...

Researchers identify human DNA on the fast track

... a variety of functions such as gene regulation or controlling the action of proteins. Furthermore, the same cells that express the HAR1 genes also produce a protein called reelin, which helps establish the architecture of the brain. According to Haussler, the possibility that the HAR1 regions may play a role ...

With few factors, adult cells take on character of embryonic stem cells

...evelopment. "The finding is an important step in controlling pluripotency, which may eventually allow the creation of pluripotent cells directly from somatic cells of patients," Yamanaka said. While the findings could have wide applications, stem cell experts caution that the study of embryonic stem cells ha...

Computational analysis shows that plant hormones often go it alone

...idates for direct targets of transcription factors controlling development," says Chory. ...

Even when faint, ovary scent draws sperm cells

...ices appears to be an ideal approach for precisely controlling the chemical gradient and accurately tracking chemotactic events. This combination led to greater repeatability in the experimental conditions over the course of the assays, which is currently not possible with conventional assays. These results are ...

Plants tell caterpillars when it's safe to forage

...se results demonstrate that it is not light that's controlling larval diurnal and nocturnal activity but volatiles released by the corn. Volatile compounds released during the day encourage hiding while those released at night indicate that it's safe to come out and eat. Just as parasitic wasps use plant volatil...

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