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Tag: "grown" at biology news

Researcher uncovers details of how cancer spreads

...d cell line to study cancer, which are mouse cells grown in the lab for research purposes. The researchers used these cells to create a model system for cancer cells, which means its basic pathway exists in real-world systems, while the actual proteins that act on the system may vary. In the model system,...

Minimally Invasive Cancer Treatments Highlighted

... inoperable because they may be too large, or have grown into major blood vessels or other vital structures. Sometimes, many small tumors are spread throughout the liver, making surgery too risky or impractical. Surgical removal is not possible for more than two-thirds of primary liver cancer patients and ...

Study hints at role of stem cell genes in testicular, breast cancers

... as represented by a sample of breast cancer cells grown in the culture dish and tissue from a Stage 3 breast tumor. Previously, the team had discovered that expression of the genes was elevated in two samples of seminomas (Stem Cells, March 2004). In the current study, they expanded their investigation, ...

Research team receives $7.5 million to study cassava

...latively easy to grow in drought conditions. Fully grown cassava roots can stay in the ground for up to two years and needs relatively little water to survive. The roots are a key source of carbohydrates for subsistence farmers in Africa . The researchers will work on developing new types of cassava plant...

Genetically modified maize not found in southern Mexico

...lyzing tens of thousands of seeds from maize crops grown in 2003 and 2004, researchers from Mexico and the United States found no evidence of transgenes in these indigenous varieties. The finding surprised the researchers, said Allison Snow, a professor of evolution, ecology and organismal biology at Ohio...

Birds and bats sow tropical seeds

.... Once these stands of animal-dispersed trees have grown up and start producing fruit, they'll be exporting their seeds to surrounding landscapes." Over the coming years, tree growth in adjacent forest remnants will be studied. Howe suspects that evidence will support the hypothesis that birds and bats tr...

Disappearing arctic lakes linked to climate change

...e water. "We were expecting the lake area to have grown with climate change," said Smith. "And while it did do so in the north where the permafrost remains intact, lake area did not increase in the south where permafrost is warming." In permafrost regions, summer thaw produces meltwater, which is typical...

Progress on HIV/AIDS significant but insufficient

...e said, in 2004, the number of infected people had grown to about 5 million, and the number who had died ha...or the four preceding years. The pandemic had also grown disturbingly worldwide, affecting new countries and new populations within countries, particularly w...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...an be harvested easily from bone marrow, isolated, grown in culture and genetically engineered. To test that MSC subsequently used in these studies retained their phenotype after being cultured, the researchers routinely tested whether their characteristic potential to differentiate into fat and bone cells...

Living with salt

...ly salt-tolerant Dunaliella, which is commercially grown as a source of natural beta carotene, has been investigated at the Weizmann Institute for over 30 years. Yet, the secrets of its exceptionally successful adaptation to salt remained unresolved. In a recent paper published in the Proceedings of the N...

Modification of program enables prediction of gene transcription

...anslated regions. Researchers in recent years have grown increasingly enthusiastic about the significance of untranslated regions. By understanding the functions of these regions, scientists expect to understand more about gene regulation ?how genes get turned on and off, the ignition system of our DNA, if...

Researchers propose measures to curb lion attacks in Tanzania

... blood and bone marrow from birth onwards or cells grown from embryos. The new type detected by the team harnesses the benefits of both. "We have found a unique group of cells that bring together the essential qualities of both types of stem cells for the first time," Dr McGuckin said. The researchers fi...

Insight into the processes of 'positive' and 'negative' learners

... blood and bone marrow from birth onwards or cells grown from embryos. The new type detected by the team harnesses the benefits of both. "We have found a unique group of cells that bring together the essential qualities of both types of stem cells for the first time," Dr McGuckin said. The researchers fi...

Researchers make 'embryonic-like' stem cells from umbilical cord blood

... blood and bone marrow from birth onwards or cells grown from embryos. The new type detected by the team harnesses the benefits of both. "We have found a unique group of cells that bring together the essential qualities of both types of stem cells for the first time," Dr McGuckin said. The researchers fi...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

The number of living Florida panthers has grown from a previously estimated 30 to a recently counted 87 as a result of a controversial breeding effort to improve the genetic health of the endangered and inbred animals, according to a new assessment. Hybrid kittens born to panthers brought into th...

Organic farms produce same yields as conventional farms

... Pimentel noted that although cash crops cannot be grown as frequently over time on organic farms because of the dependence on cultural practices to supply nutrients and control pests and because labor costs average about 15 percent higher in organic farming systems, the higher prices that organic foods co...

Study: Predatory dinosaurs had bird-like pulmonary system

...tures may have had feathers, incubated their eggs, grown quickly and perhaps even breathed like birds. "What was once formally considered unique to birds was present in some form in the ancestors of birds," said Patrick O'Connor, an assistant professor of biomedical sciences at Ohio University's College o...

Study shows eutrophic lakes may not recover for a millennium

... for cattle and other farm animals to feed that is grown in the watershed. At present, a significant amount of feed for farm animals is imported into the Lake Mendota watershed. Last year, the City of Madison implemented a ban on chemical phosphorus for lawn products, but farmers still apply phosphorus fe...

Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice

...lion. Dr. Dugan notes that aquaculture, which has grown explosively in other regions, now provides 38% of fish production worldwide but less than 2% in sub-Saharan Africa. The WorldFish Center warns that simply maintaining today's per capita fish supply in sub-Saharan Africa (6.6 kg/year) requires a 20% ...

Crisis in African fish supplies looms, experts warn Africa leaders

...lion. Dr. Dugan notes that aquaculture, which has grown explosively in other regions, now provides 38% of fish production worldwide but less than 2% in sub-Saharan Africa. The WorldFish Center warns that simply maintaining today's per capita fish supply in sub-Saharan Africa (6.6 kg/year) requires a 20% ...

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