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Tag: "shrink" at biology news

New dwarf buffalo discovered by chance in the Philippines

..." whereby some large mammals confined to an island shrink in response to evolutionary factors. This may occur due to a lack of predators (the animal no longer needs to be large to avoid being eaten) and/or limited food (smaller animals require less food). The research could provide insights into debates ...

End of deforestation in view? Experts advance new way to size up global forest resources

...such as good governance that raise income need not shrink forests, according to the paper. Forest "transitions" While forest density data are relatively new, forest area data spanning 200 years show several places worldwide have shifted from net deforestation to net reforestation ?the "forest transiti...

Science researchers genetically transform immune cells into tumor fighters

...these engineered cells can persist in the body and shrink large tumors in humans. Two of the 17 people wi...ceived the experimental treatment saw their tumors shrink and were declared clinically free of disease more than a year and half after the therapy began, Stev...

Mechanical 'artificial hearts' can remove need for heart transplant by returning heart to normal

...g an LVAD combined with certain drug therapies can shrink the enlarged heart and enable it to function normally once the LVAD is removed. For the study, researchers from Imperial College London and the Royal Brompton and Harefield NHS Trust gave the full combination therapy to 15 severely ill patients. ...

Reactivated gene shrinks tumors

...ing one of those genes in mice can cause tumors to shrink or disappear. The study offers evidence that the...escence, or no growth. Those tumors took longer to shrink but the senescent tumor cells were eventually cleared away. The researchers are not sure why thes...

Short chromosomes put cancer cells in forced rest

...aps or ends of chromosomes called telomeres, which shrink each time a cell divides and eventually - when the chromosomes get too short - force the cell to essentially commit suicide. Such cell death is natural, and when it fails to happen, the result may be unbridled cell growth, or cancer. The first ge...

Gut research yields new anti-cancer approach

...upport and shape to cells, microtubules expand and shrink to generate the force needed for cells to divide, a basic process in tumor growth. Microtubules are made of two related proteins, alpha and beta tubulin, which pair up to form a chain and then wind into a helix. The current studies found that high-do...

Scientists identify pancreatic cancer stem cells

...o some researchers. Thus, they remain after tumors shrink and may be responsible for cancer recurrence and metastasis. This study confirms at least one of those concepts, the researchers said. "Our study demonstrates that the very small subset of cells in a human pancreatic tumor that cause the cancer to...

Want to save polar bears? Follow the ice

... the receding sea ice habitat that may drastically shrink as a result of global warming. In a project named "Warm Waters for Cool Bears," WCS will use both current and historical satellite imagery to predict where sea ice is likely to persist and where subsequent conservation efforts to save the species wil...

Antarctic icebergs -- Hotspots of ocean life

...climate change is causing Antarctic ice shelves to shrink and split apart, yielding thousands of free-drifting icebergs in the nearby Weddell Sea. According to a new study in this week’s journal Science these floating islands of ice – some as large as a dozen miles across – are having a major impact on the ...

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