Tag: "stems" at biology news

Israeli teams grows heart cells and insulin producing cells from human embryonic stem cells

...the precursors of heart cells from human embryonic stems cells. This puts the researchers considerably closer to clinical application in humans. The research, conducted by Dr. Lior Gepstein of the Faculty of Medicine at the Technion-Israel Institute of Technology and Dr. Joseph Itskovitz-Eldor of the Fac...

First evidence of gene therapy for abnormal blood vessel growth in newborns

...tential for gene therapy to treat eye disease that stems from abnormal blood vessel growth is revealed in research published in the British Journal of Ophthalmology. Gene therapy is a relatively new and much heralded therapeutic approach. But despite the advances in molecular genetics, attempts to target o...

Digging for genetic fossils: Hutchinson Center researchers solve structure of ancient biological molecule

... of chemistry." Ferr-D'Amar's fascination with RNA stems in part from the theory that it may be the most ancient biological molecule. However, some present-day life forms, such as HIV and poliovirus also use RNA as their genetic material."Cells need the ability both to store genetic information and to carr...

Tree biomass is the same in tropic or temperate climes

...ant from the sun must be used to construct leaves, stems and reproductive organs in a way "that complies with the simple rules of physics," says Niklas. When the model simulates tree growth, reproduction and competition for space and sunlight, "you see them grow and die before your eyes, and you see their...

Oily fossils provide clues to the evolution of flowers

...und gigantopterid fossils in China with leaves and stems that are quite similar to modern flowering plants," Taylor notes further evidence that flowering plants and gigantopterids evolved together, roughly 250 million years ago. Molecular fossils Moldowan and his colleagues point out that the chemical f...

UF research shows that a fern soaks up deadly arsenic from soil

... plant on toxic sites, then harvest the fronds and stems -- its "above-ground biomass" -- and transfer them to a designated hazardous waste facility. The approach could help address a major problem in Florida and worldwide, Ma said. Earlier this century, cattle ranchers in Florida often used the poi...

Biological warfare: an emerging threat in the 21st century

...tist magazine. His expertise in biological warfare stems from his work with JASON, an organization of primarily academic scientists who dedicate a portion of their time to solving national security problems. Members of JASON often serve as consultants to the Defense Department and other U.S. agencies ``In...

Adult stem cell therapy for heart failure proves promising

...y are permanently lost," Chiu says. Heart failure stems from damage to the heart that leaves it unable to pump enough blood to meet the body's needs. It can result from a heart attack, viral infection of the muscle, or an inherited heart defect. One way to possibly replace dead heart muscle would be the...

Plant's PICKLE gene may hold clue to cancer

...s are in the "on" position, the plants form roots, stems and leaves that act like a cross between embryo and adult. These plants produce storage proteins and oils just like seeds do, but store them in their roots. This creates the pickle-like root swellings that first caught Ogas's attention. Now that...

U-M scientist finds molecule plants use to control early cell development

... into specialized cells destined to become leaves, stems or flowers. The first identification of such a mechanism in plants is reported by Clark and his research associates in the July 28 issue of Science. It is a protein ligand-receptor pair--a common cell signaling technique used by animals from roundwo...

Rockets or rainforest

...alm". Amerindians harvest more than 2 million palm stems from the basin annually and sell them to a French canning company for sale in Europe. Spoede responds to these concerns by saying that the project will only go ahead if an environmental impact assessment, which is about to start, proves acceptable...

UCSF study reveals mechanism of telomerase enzyme that could lead to target for cancer therapy, cell regeneration

...ch of the excitement regarding the current finding stems from the fact that, to date, research on telomerase and HIV has focused only on the protein components, as they make up a central part of the enzymes' active sites. "This discovery represents the first time anybody has shown a mechanistic role for ...

Monsanto's modified soya beans don't agree with the heat

...Monsanto's herbicide-resistant soya beans, causing stems to split open and crop losses of up to 40 per cent...in the Monsanto beans," says Vencill. Worse still, stems of virtually all the Monsanto beans split open as the first leaves began to emerge compared with bet...

Diet of antioxidants and oils improves lung disorder, study shows

... thwarting the efforts of the immune system. ARDS stems from the body's attempts to protect itself from further injury. Neutrophils -- white blood cells produced by the immune system in response to inflammation -- accumulate in the lungs. "This protective effort ultimately damages the body," Gadek said....

USGS studies wildfire ecology in the western United States

...of ponderosa pines in the Southwest was around 100 stems per acre. Today, densities at many sites exceed 2,000 stems per acre. In these dense forests, destructive insect outbreaks are common. And fires, when they...

New DNA vaccine could fight fish disease

...nd that would not be popular." The problem stems from the way DNA vaccines work. Unlike most vaccines,which contain material that triggers an immune response directly, what'sinjected is DNA containing the gene for one of the viral proteins. This DNA istaken up by cells, which then begin to produce ...

LSU Ag Center researchers look for better ways to assess pollution in Tangipahoa River

...ys. Drapcho explains that part of the challenge stems from south Louisiana'scombination of warm weather and wetlands. Because the methods for testing water for fecal coliforms were developed incooler climates, researchers are trying to modify the testing procedures toimprove their ability to accura...

DNA: A sloppier copier

...s,Arts and Sciences, notes that discovery of pol V stems from a long series ofdiscoveries that date back almost to the beginnings of modern moleculargenetics. It is widely accepted in science that exposure to ultraviolet light and otherstresses, including certain oxidizing chemicals, can create mutations ...

Gene mutations not always expressed as complete disease

...uch "minor mutations" can cause unexpected effects stems largelyfrom recent findings in cystic fibrosis (CF). Writing in the July issue of Clinical Chemistry, Dr. Lawrence M. Silverman,professor of pathology and laboratory medicine at UNC-CH School of Medicine andDr. Kenneth J. Friedman, a postdoctoral...

New Worlds Of Order, Argentine Ants Succeed By Outnumbering The Competition

... competitive ability of the Argentine ant probably stems from acombination of its unique colony structure and the lack of natural enemies onthis continent," says Holway. In their introduced range, Argentine ant colonies support worker forces thatexhibit little intraspecific aggression and may contain hund...

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(Date:10/31/2014)... Oct. 31, 2014 (HealthDay News) -- Sleep apnea may make ... where you parked your car or left your house keys, ... severe sleep apnea showed that this ability -- called spatial ... movement (REM) sleep, even when other stages of sleep weren,t ... which dreams typically occur. "We,ve shown for the first ...
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