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Tag: "recognize" at biology news

New type of rejection blocker protects kidneys after transplant

...une system's normal response to a transplant is to recognize the new organ as foreign and to signal production of T-cells poised to destroy it. A second, co-stimulatory signal is required before the T-cells attack the kidney. By blocking this second signal, belatacept prevents destruction of the kidney without...

Researchers seek to discover what really happens when a virus enters the body

...l, the common assumption was that the body's cells recognize substances or germs that do not come from within the body. The recognition triggers the immune system's attempt to eliminate the invader. What the immune system actually does, according to Matzinger, is discriminate between things that are dangerous ...

Stem Cells to Solve the Blood Shortage Problem?

...barrier function of mangroves, most have failed to recognize that this function has never actually been investigated in detail. In their essay, the authors present an account of the first post-tsunami field assessment they've undertaken, in Sri Lanka. The researchers investigated the impact of the tsunami at ...

Unexpected lock and key mechanism found for the assembly of tumor blood vessels

...y allowing the two cell layers of blood vessels to recognize and "lock" together. The study, which appears in ...t to show how the two cell layers of blood vessels recognize and bind to each other during angiogenesis, which is the formation of new blood vessels. The work a...

Could better mangrove habitats have spared lives in the 2004 tsunami?

...barrier function of mangroves, most have failed to recognize that this function has never actually been investigated in detail. In their essay, the authors present an account of the first post-tsunami field assessment they've undertaken, in Sri Lanka. The researchers investigated the impact of the tsunami at ...

Scientists turn tobacco against cancer

...demy of Sciences. Standard mouse-made monoclonals recognize a particular type of protein antigen on human colorectal cancer cells and have been used in treating metastatic disease and in preventing recurrence in certain high-risk patients. But the technology to produce large amounts of antibody is expensive, ...

Study: Harmless virus kills some cancers

...al, healthy cells. It appears that AAV2 is able to recognize cells that have undergone deregulation, infect them, express its own genes, which disrupt the host cell's life cycle and kill it. Scientists have suspected that AAV2 has cancer-suppressing properties. In previous studies, Meyers and his team found t...

Cats' indifference towards sugar explained

...n tongues are specialized taste bud receptors that recognize specific tastes, including, of course, sweet. Two ...ndifference to sweet stimuli. Cats have no way to recognize carbohydrates, and therefore eat an "Atkins-like" diet of meat and fat. These findings lead to more ...

New insight into autoimmune disease: Bacterial infections promote recognition of self-glycolipids

...he human body. The ability of the immune system to recognize the body's own tissues is essential, but sometimes...rial infections promote activation of T cells that recognize molecules called glycosphingolipids (GSL) that are present in bacteria and humans. The researchers s...

Newly discovered genetic disease sheds light on body's water balance

...lly doesn't, our job as physician scientists is to recognize the discrepancy and get to the bottom of the situation." First, Gitelman and his colleagues worked to find an innovative treatment for the two young patients. "When adults retain too much water we can treat them by restricting fluid intake," he said...

'Mad cow' proteins successfully detected in blood

... Division of Clinical Laboratory Devices agreed to recognize tests for B. anthracis as eligible for classification with a 510(k) premarket notification process--the designation given to devices and other non-biologics. USAMRIID, with support from CDC, prepared and submitted a 510(k) Premarket Notification ...

Scripps research scientists solve structure of a critical innate immune system protein

...thing like this. Certain cells have the ability to recognize foreign molecules such as components of membrane l...or mouse cells encounter bacteria or viruses, they recognize proteins, lipids, or other molecular components of these foreign invaders through a family of TLR pr...

Anthrax test, developed by army and CDC, receives FDA approval

... Division of Clinical Laboratory Devices agreed to recognize tests for B. anthracis as eligible for classification with a 510(k) premarket notification process--the designation given to devices and other non-biologics. USAMRIID, with support from CDC, prepared and submitted a 510(k) Premarket Notification ...

Confirmation of human protein interaction data by human expression data

...id. Neurons that fire regularly while learning to recognize a new person’s face, for example, will form larger arbors with more connections that help retain that memory for the future. Likewise, neurons stimulated by engaging toys or experiences will probably create larger arbors than similar neurons in less ...

Speak up: Louder neurons form more connections

...id. Neurons that fire regularly while learning to recognize a new person’s face, for example, will form larger arbors with more connections that help retain that memory for the future. Likewise, neurons stimulated by engaging toys or experiences will probably create larger arbors than similar neurons in less ...

Bioinformatics reveals new gene regulation system

...e to protein. Molecules that promote transcription recognize and bind to this sequence, which lies just outside of the gene. Repressor signals commonly work by allowing other proteins to bind on top of the promoter sequence and physically block promoters. Therefore, the duo predicted that the NrdR-box function...

FDA approves more generic AIDS drugs

... SGT1 control whether or not the plant is about to recognize that it is under pathogen attack," Holt said. "So the emerging story is that RAR1 and HSP90 keep resistance proteins ready to perceive pathogen signals, and SGT1 probably pulls against these two to send resistance proteins to their destruction." The...

UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

... SGT1 control whether or not the plant is about to recognize that it is under pathogen attack," Holt said. "So the emerging story is that RAR1 and HSP90 keep resistance proteins ready to perceive pathogen signals, and SGT1 probably pulls against these two to send resistance proteins to their destruction." The...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

... Their first breakthrough came when they began to recognize the potential uses of transferrin. "We discovered that transferrin can bind to receptors on the intestinal epithelial cells and be transported across the GI tract to the blood stream," Shen says. "Humans naturally produce transferrin to move iron thr...

Immune system's distress signal tells bacteria when to strike back

...he University of Chicago, enabling the bacteria to recognize when its host is most vulnerable and to launch an .... When these bacteria intercept this message, they recognize it as a threat, assess their own numbers and, if they have sufficient strength, activate genes that ...

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