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Tag: "halts" at biology news

Mutation improves memory, may lead to memory-enhancing pill

...es on the protein synthesis of another factor that halts production of genes required for the long-term storage of memories. Sonenberg and his colleagues previously discovered that mice lacking the enzyme that performs the phosphorylation reaction have a superior ability to remember new things under certai...

MIT material stops bleeding in seconds

...le protective barrier gel that seals the wound and halts bleeding. Once the injury heals, the nontoxic gel is broken down into molecules that cells can use as building blocks for tissue repair. "We have found a way to stop bleeding, in less than 15 seconds, that could revolutionize bleeding control," sai...

Changing length of days reverses how estrogen affects aggressiveness in mice

...with a drug known as an aromatase inhibitor, which halts the production of estrogen. This class of drugs is commonly used to treat estrogen-dependent breast cancer. In mice housed in short days (limited daylight as in winter), the drug halting estrogen production made the normally aggressive mice less a...

Lack of key enzyme associated with development of rare tumor

... were deficient in the enzyme PDE11A. This enzyme halts cyclic nucleotide production in adrenal cells as well as in other kinds of cells in the body. Because they lacked PDE11A, the patients' adrenal cells had higher levels of cyclic nucleotides. The researchers believe that these higher cyclic nucleoti...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...lthy corneas. According to their findings, VEGFR-3 halts angiogenesis (blood vessel growth) by acting as a "sink" to bind or neutralize the growth factors sent by the body to stimulate the growth of blood vessels. The cornea has long been known to have the remarkable and unusual property of not having bloo...

Careless reporting on HIV 'could cost lives'

...n earlier this year (see Cambodia's prime minister halts AIDS drug trial, and Cameroon suspends trial of AIDS drug after protests). Mills and colleagues found that media reports about opposition to the trials varied greatly, and some were "entirely incorrect". Some reports said opposition grew because tr...

University of Nevada, Reno research team discovers hormone that causes malaria mosquito to urinate

...if. that developed methoprene, an insecticide that halts the maturation of insect larvae to adults. Methoprene, which has the same effect as an insect hormone called juvenile hormone, also stops the insect from reproducing. It is being used heavily throughout the United States to help prevent the spread...

Two are better than one

...l, and thus cease signaling. In response, the cell halts growth and, when chemotherapy is used in combination with the immunotherapy, it dies. According to Sela, the study sheds light on the synergy at work in the antibody-receptor therapy system. The results demonstrate that with the right combination of...

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