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Tag: "alive" at biology news

Timing is everything: First step in protein building revealed

...ge of gene expression, and gene expressionkeeps us alive and causes disease," says Lorsch. "If we can betterunderstand how the ribosome works, perhaps we can harness it to help usfix disease."Already, scientists knew that without eIF1, the ribosome can startreading the gene's RNA instructions at places oth...

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

...her advantage of SPIM is that the specimen is kept alive in a liquid-filled chamber, allowing scientists to track developmental processes like the formation of eyes and the brain in embryonic fish or other model organisms. The presentation of SPIM at scientific conferences has generated a flood of request...

Gene therapy converts dead bone graft to new, living tissue

...eal has waned because their handling ?keeping them alive and ready to use ?is far harder than Schwarz's viral paste, which can be stored at room temperature and doesn't interfere with the normal grafting surgery. "We're very excited about the prospects of this technology," says Schwarz. "Our ultimate goal...

Taking Aim With Nanoparticle PEBBLEs

... long. With targeted PEBBLEs, some rats were still alive and active two months later, and MRI images showed that their tumors had vanished. Kopelman and coworkers plan to tinker with the PEBBLEs a bit more before trying them on larger numbers of rats, and PEBBLE-based cancer treatments for people are a lo...

Potential Cure for Lymphoma in HIV patients

..., 17 of the 20 patients (85 percent) are currently alive andin remission. In addition, the underlying HIV infection did not worsenas a result of the transplant and associated treatments.“The results of this study are significant because, despite the use ofeffective antiviral drugs such as HAART, lymphoma i...

Tiny scaffolding allows stem cells to become working fat cells

...issue. So far, the researchers have kept the cells alive and thriving for several months and hope to maintain them for up to a year. "We know that the environment in which a community of cells finds itself has a great deal of influence on the biology underway within those cells," Kniss said. "And that bio...

The Bacteria's guide to survival

...gene expression - and possibly keep the host cells alive longer - through tiny tugs on cell membranes. The study examined gene activity in human epithelial cells infected with Neisseria gonorrhoeae, the bacteria responsible for the sexually transmitted disease gonorrhea. By comparing cells infected with n...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

...y chance. In the absence of p53, the cells remains alive and become cancerous." The study's findings help explain the interlocking roles of MYC, TEL2, and p53 in the development of B lymphoma. It was already known that many human B-cell lymphomas over-express the MYC gene, either because the tumor cells a...

Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis

...hand, this protein keeps HSCs and progenitor cells alive and multiplying so the body can maintain its needed supply of blood cells," he said. "However, Mcl-1 also prevents the abnormal white blood cells found in leukemia from undergoing apoptosis in response to chemotherapy or radiation. This makes the leu...

Genetic defects give the immune system the green light to attack the pancreas

... The safeguard system was broken. The T-cells were alive and able to leave the thymus and attack beta cells. Now that the chromosomal regions are known, the researchers are seeking the precise genes involved. “Once these genes are identified, we will be better able to define the biologic pathways that lea...

Active Vaccine Prevents Mice From Developing Prion Disease

...rior to prion exposure, approximately 30% remained alive and symptom-free for 500 days, according to the study. By comparison, mice that didn't receive the vaccine survived only an average of 185 days, and all were dead by 300 days. The NYU scientists are in the process of redesigning the vaccine for deer...

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

...atment. The cells can be collected easily and kept alive in the laboratory until needed, she said. Other researchers had previously shown that the marrow stromal cells could be induced to transform into neuronal cells, but it wasn’t clear whether, or how, the cells could be further transformed into useful...

Fungus-farming termites descend from an African rain forest Eve

...ise to the many fungus-cultivating termite species alive today in various parts of the Old World. The relationship between the termites and the cultivated fungus represents an impressive example of mutualistic symbiosis. The termites use chewed plant material, such as wood and dry grass, to feed the fungu...

Speak up: Louder neurons form more connections

...eathable, Jell-O-like substance that kept the fish alive but immobile. The researchers could then focus video cameras on the fish’s developing brain to watch how the branches of individual neurons grew and shrank over time. It turns out that determining which of the branches will grow follows an age-old a...

Confirmation of human protein interaction data by human expression data

...eathable, Jell-O-like substance that kept the fish alive but immobile. The researchers could then focus video cameras on the fish’s developing brain to watch how the branches of individual neurons grew and shrank over time. It turns out that determining which of the branches will grow follows an age-old a...

New tool reveals secrets of migrating cells

... native environment while keeping the intact organ alive and make movies of migrating cells." With two-photon imaging, Witt and Robey identified thymus cells they dubbed beeliners moving nearly two centimeters - almost an inch - per hour, which is fast in the realm of cell movement. They think that these ...

Environmental chemical cocktail may sabotage sperm

...remature sperm capacitation. "The sperm were still alive and their ability to move was unaffected, but the spontaneous acrosome reaction meant that they were unable to fertilise an egg," said Prof Fraser. She said that the chemicals were more likely to affect sperm when they reached the female tract where...

Vaccine targets tumors where they live

...l response and 3 were stable. One patient remained alive without disease recurrence for 59 months after vaccination without any other therapy. This approach may be useful for altering the tumor environment in order to induce anti-tumor immunity and provides a foundation upon which other vaccine strategies ...

UT Southwestern researchers discover master switch in cell death

...thways are triggered. Normally, Mcl-1 keeps cells alive by protecting them against apoptosis. For a cell t...une system or even death. Too much, and cells stay alive when they shouldn’t, leading to cancers such as lymphomas. Using human cell extracts, the researche...

New book expands biological classifications to account for 'alien' life

...tein and nucleic acid but which Ward argues are as alive as the many parasites that infect humans and other organisms. The revamped classification system also would include life based on RNA instead of DNA, and life found away from Earth that likely would be based on silicon or elements other than the carb...

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