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Tag: "until" at biology news

U-M team recovers ancient whale in Egyptian desert

...y temperature taken down in order to buy them time until the pathology reports come back and they can get on the right course of treatment," Roth said. "Today, physicians have no way of dealing with uncontrolled fever other than literally putting people on ice. Well, we believe we know how to flip the brea...

Strongest proof yet found for prion hypothesis

...uted over and over again and the process repeated, until the only remaining prions were those that had been generated in the test tubes. These were then injected into the brains of healthy hamsters, which began showing TSE symptoms within four months and, on average, died less than six months after inocula...

First frozen egg baby born in Canada

...zen eggs can then be safely stored in the Cryoleaf until it is ready for use, at which point it is carefully thawed, then fertilized. To date, 15 patients at the McGill Reproductive Centre have had embryo transfer produced from vitrified eggs, resulting in 7 pregnancies including this livebirth. "The resu...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

...tial trigger for the induction of iNOS. "eNOS has until recently been thought to act principally in an anti-inflammatory manner," notes Dr. Hobbs. "The results of our study show clearly that eNOS can also act in a pro-inflammatory manner and accelerate host-defense in response to pathogenic stimuli." Thi...

Two are better than one

...m grips and pulls the receptors towards each other until they collapse inward like overloaded laundry lines. The stressed receptors become engulfed by the cell, and thus cease signaling. In response, the cell halts growth and, when chemotherapy is used in combination with the immunotherapy, it dies. Accor...

Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells

...o overcome significant technical hurdles that have until now slowed development of NK-based therapies for ALL, according to Dario Campana, M.D., Ph.D., a member of St. Jude Hematology-Oncology and Pathology, and senior author of the Blood report. Progress in adapting NK cells to the treatment of ALL had be...

Biologists discover why 10% of Europeans are safe from HIV

... in Sweden, Copenhagen, Russia, Poland and Hungary until 1800. This maintenance of haemorrhagic plague provided continuing selection pressure on the CCR5-delta32 mutation and explains why it occurs today at its highest frequency in Scandinavia and Russia." ...

First North American Encapsulated Islet Transplant without Long-term Immune Suppression into a Patient with Type 1 Diabetes

... in Sweden, Copenhagen, Russia, Poland and Hungary until 1800. This maintenance of haemorrhagic plague provided continuing selection pressure on the CCR5-delta32 mutation and explains why it occurs today at its highest frequency in Scandinavia and Russia." ...

Shift of weather patterns necessitates rethinking of reforestation methods

...ty of planting crews ?may mean planting isn't done until late March. A decade or more ago, East Texas weather patterns favored success with this planting strategy. Relatively cool, wet weather throughout mid-summer gave the new seedlings time to recover from root damage. But weather patterns have changed,...

Study: 'homemade' gene expression technology unreliable

... and then write that on a glass slide repetitively until one can build up hundreds of thousands of different spots on this glass array," Spencer said. But as commercial platforms improved over time, many laboratory or "home-built" platforms have not, he said. "The fruits of the research done on some of th...

Biomarkers isolated from saliva successfully predict oral and breast cancer

...e search for such tests, however, has been stalled until recently with the advance of several emerging technologies including improved methods to identify, collect, preserve and amplify genetic material and proteins. In this study, the UCLA team found they could isolate messenger RNA from saliva and blood...

Novel gene-silencing nanoparticles shown to inhibit Ewing's sarcoma

...lly carries iron molecules through the bloodstream until it meets up with a transferrin receptor on the surface of another cell. The transferrin binds tightly to a receptor on the cell's surface, where it is drawn inside and surrounded by a small vesicle. The vessels are acidified, causing the nanoparticle...

Double triumph in stem cell quest

... other teams glue cells to a surface and spin them until the denser nucleus is forced out. Then the team take cells from adults and fuse them with the enucleated ESCs. The idea is that the cytoplasm of an enucleated ESC will reprogram the donor nuclei, turning the fused cell into an ESC too. The result, V...

Are rice and wheat behind China's population boom?

...with Chinese agriculture, most archeologists have, until recently, thought it was exclusively millet that w...th western Asia - the likely source of the wheat - until much later. "Despite all we know about China, we have never had a really good idea about what their...

Africa to take it on chin again with climate change

...hel region, which experienced catastrophic drought until rains returned in the 1990s, could experience wetter monsoons for decades to come. However, drought across southern Africa is projected to intensify further. Oceanic warming consistent with an increase in greenhouse gases appears to be a factor in th...

A little stress gives beneficial oomph! to immune system

...lways present in the body, but most remain dormant until an immune response is activated by wounding or infection or until the brain identifies a stressful situation. When that happens, the brain releases hormones that set ...

Scientists discover that three overlapping signals in embryo help get the backbone right

...hat embryonic cells don't know what they'll become until they get the proper signal. This concept is at the root of today's excitement over embryonic stem cells, which are basically naïve cells that, theoretically, can be stimulated to become any tissue of the body. In fact, the proteins normally used by ...

Migratory songbirds have a specialized night-vision brain area

... illumination equivalent of moonlight. They waited until the birds were sitting quietly to eliminate brain activity from movement. The researchers then quickly preserved the birds' brains, and in Jarvis's laboratory analyzed the brain structures for the active expression of two genes called ZENK and c-fos ...

Norovirus found to cause traveler's diarrhea

...sidered in studies of traveler's diarrhea because, until recently, molecular detection methods for these viruses have not been readily available in laboratories in the United States or other countries. The researchers examined stool samples from 34 individuals who experienced traveler's diarrhea during tr...

Could microbes solve Russia's chemical weapons conundrum?

...ored the levels of PHT derivatives in the cultures until the bacteria stopped growing, using monoethanolamine (MEA) and ethylene glycol (EG) ?both residual components of the initial de-toxification process that are present in the RM ?for growth. The results showed that the concentrations of each PHT deriv...

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