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Tag: "old" at biology news

Agent slows aging in mice

...st middle age, live past the normal outer limit of old age" The longest that mice of this type usually li...o bulk up on creosote bush leaves as a way to defy old age. If NDGA pushes the aging envelope in the final results of this study, other labs will likely tr...

Old memory traces in brain may trigger chronic pain

...ound a key source of chronic pain appears to be an old memory trace that essentially gets stuck in the prefrontal cortex, the site of emotion and learning. The brain seems to remember the injury as if it were fresh and can’t forget it. With new understanding of the pain source, Vania Apkar...

Snoring in children might be an allergic type disease

... week. This is a very high prevalence in five year old children and is partly due to all of the children having rhinitis which is often found in children who snore. Dr Nat Marshall, from Sydney’s Woolcock Institute of Medical Research said the study aimed to investigate whether the risk factors for s...

Researchers examine carbon capture and storage to combat global warming

...ons today lie in geologic sequestration-storage in old oil fields, natural gas reservoirs, deep saline aquifers and unminable coal beds, hundreds to thousands of meters underground. The carbon dioxide is pumped down through wells, like those used to extract oil, and dissolves or disperses in its reser...

Massive herds of animals found to still exist in Southern Sudan

...n Society. “We are happy to be welcomed back like old friends by the Government of Southern Sudan, and we look forward to working together to safeguard this amazing wildlife treasure.” Fay and his colleagues believe that follow-up aerial surveys and tracking will reveal that the team missed a sign...

Mutating the entire genome

...w chromosome containing a piece of each of the two old ones. The process, “translocation,” also can create new genes from two other genes. Many cancers – certain sarcomas, leukemias and lymphomas – start with translocation. Existing methods result in the desired translocation of two chromosomes in on...

Newborn neurons like to hang with the 'in' crowd

...e over time they get emboldened and muscle out the old guys. "Adding new neurons could be a very problema... nanometer scale and watched how the young and the old got acquainted. He observed that between three and four weeks after injection of the virus newbo...

Scientists identify prion's infectious secret

...ngs provide researchers with a new way to approach old questions, such as why some prion diseases can jump from one species to another but others can’t. Tessier and Lindquist say it is likely that natural prions contain more than one recognition element, and recognition elements can slide into a neighbor...

Female-led infanticide in wild chimpanzees

...n the area exhibited displaying behavior, with one old male unsuccessfully attempting to separate the females. The authors point out that these new observations indicate that such female-led infanticides are neither the result of isolated, pathological behaviors nor the by-product of male aggression, ...

From the deep -- Researchers find new species of sea anemone

...ysical description. She and Gusmão aren't sure how old the creatures are, and say that sea anemones can live for hundreds of years. Nor are they sure how A. pearseae reproduce (each anemone may have male and female sex organs), or if it lives exclusively on whale carcasses. "So far, a single dead whal...

Effect on breast tumors of DNA alternations in 3 genes described

...ers. The samples were taken from women 35-79 years old who participated in the Western New York Exposures and Breast Cancer Study (WEB study). Extensive in-person interviews were used to collect information on potential breast-cancer risk factors and confounding factors. Results of the research were p...

Study of protein folds offers insight into metabolic evolution

...his mosaic is telling you that the new enzymes and old enzymes are together performing side by side," Cae... said. "In some cases in the same protein you have old domains and new domains working together." This finding supports the hypothesis that protein arch...

Proteasome activator enhances survival of Huntington's disease neuronal model cells

...living cell needs both to build new and to degrade old or damaged proteins. To accomplish that, a number of intracellular systems work in concert to keep the cell healthy and from clogging up with damaged proteins. When proteins or peptides mutate, they can present major problems to the clearing up of th...

Mine runoff continues to provide clues to microbial diversification

...slime at the surface of water trickling through an old mine in California is proving to be a treasure for researchers in their quest to learn more about how bacterial communities exist in nature. A letter published in today’s online edition of Nature shows that it is possible to follow what microorganis...

Power-boosting signal in muscle declines with age

... of AMPK. They compared AMPK activity in young and old rats following three "perturbations" that normally... an increase in muscular AMPK activity not seen in old rats, they found. Similarly, the muscle of exercise-trained young rats showed more than a doubling i...

Study examines risk of soft tissue sarcomas in hereditary retinoblastoma survivors

...than half of the patients were younger than 1 year old when diagnosed, and most (88.2 percent) of the patients were treated with radiation. A total of 69 soft tissue sarcomas were diagnosed in 68 hereditary retinoblastoma patients. The most common subtype was leiomyosarcoma, a cancer of smooth muscle...

Research finds music training 'tunes' human auditory system

...ainstem Encoding of Linguistic Pitch Patterns." An old structure from an evolutionary standpoint, the brainstem once was thought to only play a passive role in auditory processing. Using a novel experimental design, the researchers presented the Mandarin word "mi" to 20 adults as they watched a movie....

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...al, consequently no one looked carefully at really old bones," said Schweitzer, who is also at the North Carolina Museum of Natural Sciences. She is a co-author on the Asara study. That may change, said Lewis Cantley, HMS professor of Systems Biology and BIDMC chief of Signal Transduction, who also pa...

MU researcher placing eye implants in cats to help humans see

... their sight when they are around one or two years old and are completely blind by age four. To date, Narfstrom has performed surgeries in severely visually impaired or blind cats. During the surgery, Narfstrom makes two small cuts into the sclera, the outer wall of the eyeball. After removi...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...icant value in their work. Both the new and the old methods begin with the same steps. In order to ide... cells with cDNA able to stimulate T cells. The old approach to cloning antigens adds an additional layer of complexity to the process. It requires know...

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