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Tag: "isolated" at biology news

New study pinpoints epicenters of Earth's imminent extinctions

...history, most species extinctions have occurred on isolated islands following the introduction of invasive predators such as cats and rats. This study shows that the extinction crisis has now expanded to become a full-blown assault on Earth's major land masses, with the majority of at-risk sites and species n...

Pretreating rogue cancer cells with aspirin cripples their resistance to targeted therapy

...history, most species extinctions have occurred on isolated islands following the introduction of invasive predators such as cats and rats. This study shows that the extinction crisis has now expanded to become a full-blown assault on Earth's major land masses, with the majority of at-risk sites and species n...

Eisai announces Phase II data on E7389, a potential new therapy for the treatment of breast cancer

...n vitro and in vivo. Halichondrin B was originally isolated from a type of marine sponge. This study was designed to evaluate E7389 as a monotherapy in patients with refractory breast cancer. The primary endpoint of this trial was response rate, measured using the RECIST (Response Evaluation Criteria In Soli...

The secret love life of plants

...earch and the University of Cologne have, however, isolated a mutant where there is only one single fertilisation. In a recent online edition of the journal Nature Genetics (November 28, 2005) they explain that this single fertilisation, which creates an embryo, also triggers the development of endosperm, eve...

Forgotten by evolution?

...ell lines of mesenchymal stem cells which had been isolated from the bone marrow of mice. What was particularly special about the process they used was that they did not add growth factors to the culture medium; the goal was to prevent the cells from differentiating prematurely. By doing so, the scientists di...

A salty tale: New bacterial genome sequenced from ancient salterns

...aped organism. Several years ago, scientists first isolated S. ruber from saltern crystallizer ponds in Alicante and Mallorca, Spain. Although extreme-loving microbes called archaea were known to eke out life in the ponds, scientists were surprised to discover ordinary bacteria also thriving in such a physica...

Why the Amazon rainforest is so rich in species

...'refuges'. In each refuge, it was thought that the isolated populations eventually developed into new species. In the Amazon basin, these changes were thought to have taken place during the Pleistocene geological age which started 1.6 million years ago. In this theory, the Pleistocene ice ages trapped water...

Study finds that nutritionally enhanced rice reduces iron deficiency

...off day-to-day hunger. This is especially true in isolated rural areas where under-resourced and overstretched public health systems struggle to improve the overall nutrition of the world's poor through nutritional supplements. In these areas, commercially fortified foods also have difficulty making it into ...

Picking particles faster than one at a time

..., a convex or "boat-shaped" enzyme labeled TPP-II, isolated from the fruit-fly. Although an initial comparison between manual selection and automatic selection indicated that 15 percent of the program's nominations were false positives, when the program was run again -- using a template after segmentation to ...

New peptide antibiotic isolated from American oyster

North Carolina Sea Grant researchers have isolated a new peptide antibiotic from the American oyster ...oga. This is the first time that researchers have isolated an antimicrobial peptide from any oyster species, he says. NC State veterinary medicine postdoctora...

Bird song changes sound alarm over habitat fragmentation

... is due to lack of interaction between individuals isolated by habitat barriers. According to the study's authors, Dr Paola Laiolo and Dr José Tella of the Estación Biologica de Doñana in Seville, Spain: "We found that habitat loss in the steppe matrix markedly affected song-type sharing mechanisms in Dupont...

Pregnancy drugs can affect grandkids

... is due to lack of interaction between individuals isolated by habitat barriers. According to the study's authors, Dr Paola Laiolo and Dr José Tella of the Estación Biologica de Doñana in Seville, Spain: "We found that habitat loss in the steppe matrix markedly affected song-type sharing mechanisms in Dupont...

Diabetes researchers pioneer islet cell xenotransplantation in primate studies

...nnesota researchers; those researchers used islets isolated from adult pig pancreases. Neonatal islets were produced in Edmonton using a procedure Drs. Greg Korbutt and Rajotte developed in 1995. The pig islets were sent to the Yerkes Research Center for transplantation into diabetic rhesus macaques using an...

A real time look at interactions between RNA and proteins

...PNA to whatever protein is nearby. The researchers isolated an array of proteins from the complex of the PNA, the targeted mRNAs, and associated RNA-binding proteins. The cells are then broken apart and the proteins that interact with the mRNA are identified with a mass spectrometer. With their system, the...

H5N1 avian flu virus vaccine induces immune responses in healthy adults

... The vaccine, made from an inactivated H5N1 virus isolated in Southeast Asia in 2004, was manufactured by sanofi pasteur, Swiftwater, PA, under contract to NIAID. Because there are no manufacturers licensed in the United States to use adjuvants in inactivated influenza vaccines, NIAID's first step was to tes...

Pain killer fights breast cancer by targeting key enzyme

...imesulide's aromatase-inhibiting effects are truly isolated to breast tissue. "Then we need to conduct animal studies to learn how effective these compounds are when they are actually inside the body and what the potential side effects may be." ...

UF scientists reveal ancient origin of vertebrate skeleton

...amprey's cartilaginous skeleton. In addition, they isolated a gene called Sox9, a regulator of collagen gene activity in vertebrates. The results indicate the collagen-based skeleton evolved before the jawed and jawless vertebrates split into different paths, not afterward. In addition, the research shows th...

Computers to save unique type of American red squirrel

...ical Conservation. The Mount Graham Red Squirrel, isolated for the last 10,000 years in a small area of conif...e can't save a species in a relatively controlled, isolated environment like this, it doesn't bode well for effective conservation of other species in more comp...

UF scientists reveal ancient origin of vertebrate skeleton

...amprey's cartilaginous skeleton. In addition, they isolated a gene called Sox9, a regulator of collagen gene activity in vertebrates. The results indicate the collagen-based skeleton evolved before the jawed and jawless vertebrates split into different paths, not afterward. In addition, the research shows th...

York researchers develop pollution-busting plants to clean up contaminated land

...ic and carcinogenic. The six-strong CNAP team has isolated a bacterial micro-organism in the soil in contaminated land that can utilise the explosives as a source of nitrogen for growth. But, because RDX is so mobile in soil, the bacteria present are not degrading it quickly enough to stop the contamination ...

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