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Tag: "multiplying" at biology news

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

... ability to commit suicide, these cells will start multiplying entirely out of control. "This is exactly what we saw in mice that were genetically modified so their B lymphocytes were over-expressing MYC," Grosveld said. "When we forced over-expression of TEL2 in these mice, we curtailed apoptosis in the precan...

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

... 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 leukemia cells resi...

'Sinkers' provide missing piece in deep-sea puzzle

...ount of organic carbon in each sinker. Finally, by multiplying the number of sinkers reaching the seafloor times the average amount of carbon per sinker, they were able to estimate how much carbon the sinkers were carrying to the seafloor. To their surprise, Robison and his colleagues found that sinkers were del...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...n problem with this technique is that the virus is multiplying in the patient at the same time as it is growing in the culture. This has caused many hospitals to switch to a technique called real time PCR, which is extremely sensitive but still takes 36 to 48 hours because of the need for a highly trained molec...

Neanderthal teeth grew no faster than comparable modern humans'

...ing teeth, signifying six to 12 days of growth. By multiplying that interval by the number of perikymata on a tooth's surface, researchers can gauge how long it took for the tooth to mature. And that gives them an indication of the length of an individual's childhood. Neanderthals, Homo neanderthalensis, were ...

Scientists discover a genetic switch that links animal growth and cancer

...s remain in a quiescent state, neither growing nor multiplying until they are triggered to do so by an environmental cue, such as a hormone or injury. Cells possess braking mechanisms that keep them in this quiescent state. When the brakes fail, cells that should be static start growing and dividing, leading to ...

Microscopic scaffolding offers a 'simple' solution to treating skin injuries

... introduced and attach themselves to the scaffold, multiplying until they eventually grow over it. When placed over the wound, the scaffold dissolves harmlessly over 6 to 8 weeks, leaving the patient's skin cells behind. This new approach to skin reconstruction has been developed by a team of chemists, materi...

Sunflower speciation highlights roles for transposable elements in evolution

...ated to infectious retroviruses and are capable of multiplying and inserting themselves at different points throughout a host genome. They are found in virtually all eukaryotic genomes. The new findings not only add an interesting twist to the origin of new sunflower species through hybridization, but also s...

Mysterious 'neural noise' actually primes brain for peak performance

...r with log tables and slide rules knows that while multiplying large numbers is difficult, adding them with log tables is relatively undemanding. The brain is apparently designed in a similar manner--"coding" the possibilities it encounters into a format that makes it tremendously easier to compute an answer. ...

Hair-growth drug artificially lowers PSA levels in prostate cancer screening, study finds

.... Doctors need to adjust the PSA interpretation by multiplying it times two for these men." Finasteride was initially developed in the 1990s for the treatment of benign prostatic hyperplasia (BPH), better known as enlarged-prostate disease, and was first approved by the U.S. Food and Drug Administration for th...

A first glimpse of the influenza replication machine

...humans. Upon infection the influenza virus starts multiplying in the cells of an infected host. The polymerase is crucial in this process because it copies the viral genome and directs the production of its proteins. Interfering with polymerase function would prevent the virus replicating, thereby reducing the ...

Leeches ferry infection among newts

...on. However, it is still unclear if the spores are multiplying within the leech, or simply ferrying on its proboscis. Even though the infection is not fatal to the newts, it could affect their numbers, says Raffel . "When newts get infected, they often stop breeding, apparently to shore up their immune system...

Cells re-energize to come back from the brink of death

...that avoided CICD took about a week or so to begin multiplying again,” Green said. “This might represent the time it takes for the cell to restore enough mitochondria to allow the cell to function normally.” The discovery that GAPDH appears to save cells from CICD suggests that blocking this enzyme would ki...

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