Tag: "fruit" at biology news
As the protein folds: The tail of the gene tells the tale of Machado-Joseph disease
... colleagues worked in a simple model organism, the fruit
fly, engineering flies to express both the normal ...glutamine repeat. When both genes are in the same fruit
fly, however, the functioning gene helps protect against the effects of the bad one. Their studies ...
Chemical compounds present in diet increase risk of colon cancer
... an important role. It is thought that vegetables, fruit
and fibre-rich foods protect against it; fats, red meat, as well as excessive consumption of calories, and obesity increase the risk of developing it. To better understand the causes, a team of researchers led by Victor Moreno, researcher at the Uni...
Highlights of the April 2005 Journal of the American Dietetic Association
...in feeding may promote both picky eating and lower fruit
and vegetable consumption." Other findings includ...s on 'picky eating' behaviors and more on modeling fruit
and vegetable consumption for their children."...
New study documents the detrimental impact of teen beverage choices
... more calories to a teenager's diet than sodas and fruit
drinks. In all, these sweet drinks provide about 1... cakes, cookies and other sugary foods. Sodas and fruit
drinks are also the single leading source of added sugars in a teen's diet, providing more than half...
Six week mini-med school to focus on the fascinating science of aging
...several genes in tiny roundworms called nematodes, fruit
flies, and mice that seem to be related to longevity. Even single-celled yeast, one of nature's simplest organisms, may provide scientists with important genetic clues about human aging and longevity. He will also discuss the genetic basis of some ag...
Zinc supplementation improved mental performance of 7th-grade boys and girls
...rs, 111 girls and 98 boys, consumed four ounces of fruit
juice containing either 0, 10 or 20 mg of zinc gluconate each school day for 10 to 12 weeks. Students, their parents and teachers did not know who was receiving which, if any, zinc supplementation until the study was completed. At the beginning and e...
Other highlights in the April 6 JNCI
...dietary patterns, "prudent" (characterized by high fruit
and vegetable intake) and "western" (characterized by high meat and high fat intake). The authors found no association between either dietary pattern and the risk of pancreatic cancer. Contact: Kevin Myron, Office of Communications, Harvard School o...
Yale researchers use laser light to remote control flies
...ave genetically designed triggers in the brains of fruit
flies that allow the flies' behavior to be controlled with laser light, according to an article in the April 8 issue of the journal Cell . In some experiments the light controls were engineered to alter how the flies jump, beat their wings and fly i...
Protein tags regulate key ion channel
...) potassium channels in yeast cells in 1995 and in fruit
flies in 1996. Although potassium leak was first described in the 1950s when it was recognized to control excitation of nerves, the reason for leak had not previously been understood. The first human clone of this channel, K2P1, generated a good dea...
Remote control flies?: Fly behavior controlled by laser light
...found a way to exercise a little mind control over fruit
flies, making the flies jump, beat their wings, and fly on command by triggering genetic "remote controls" that the scientists designed and installed in the insects' central nervous systems, according to a new report in the 8 April issue of the journ...
Molecular motors cooperate in moving cellular cargo, study shows
...k down toxic substances) inside specially cultured fruit
fly cells. This was the first time the imaging technique had been used inside a living cell. "Our measurements show that both dynein and kinesin carry the peroxisomes in a step-by-step fashion, moving about 8 nanometers per step," said Selvin, who al...
New findings support a central role for NMDA receptors in learning and memory
...hat disable a key neurotransmitter receptor in the fruit
fly, they have uncovered an important clue to the ...red for associative, or Pavlovian, learning in the fruit
fly; they then went on to show that these receptors are not just passively participating but are in ...
Antioxidant-rich diets reduce brain damage from stroke in rats
...gest. "The clinical implication is that increasing fruit
and vegetable consumption may make a difference in the severity of a stroke," Dr. Bickford said. "It could be a readily available, inexpensive and relatively safe way to benefit stroke patients." The researchers studied four groups of rats, all fed e...
Master gene controls healing of 'skin' in fruit flies and mammals
...when she noticed lesions in the cuticle of certain fruit
fly mutants. She suspected that the lesions were ..." In its study, Jane's team found that, like their fruit
fly counterparts, mice lacking grainyhead have a much more permeable skin than normal mice and have ...
A puzzle piece found in unraveling the wiring of the brain
...sophisticated genetics applied to the brain of the fruit
fly, Drs. Sunil Mehta and Hiesinger found a gene named sec15 that is required for nerve cells to make appropriate choices of targets on which to act. The Sec15 protein is part of a protein complex (the exocyst) which is known to be required for secr...
Buying time through 'hibernation on demand'
...isms as yeast and worms, as well as the embryos of fruit
flies and zebrafish. In each case they achieved metabolic suspension through oxygen deprivation caused by exposure to gases such as hydrogen sulfide and carbon monoxide. Known as oxygen mimetics, these chemicals are very similar to oxygen at the mole...
Stem cells from brain transformed to produce insulin at Stanford
...steps toward producing insulin. In insects such as fruit
flies, the cells that produce insulin and regulate blood sugar are, in fact, neurons. Taken together, this evidence suggested to Kim that neural stem cells may be able to produce insulin. Despite Kim's informed hunch, the fact that it worked is a bit...
Programmable cells: Engineer turns bacteria into living computers
...me the various body parts of a mature organism. In fruit
fly embryos, for example, the first cells are thought to differentiate into the head, abdomen and other parts based on the concentration of chemical signals that are emitted from the ends of the embryo. In addition to conducting laboratory experiment...
Wisconsin researchers identify sleep gene
...n that has a powerful effect on the amount of time fruit
flies sleep. In its normal state, the Drosophila ...e-clock search, researchers screened 9,000 mutated fruit
flies, many of them supplied by Ganetsky's lab, and found one line of them that slept one-third the ...
The clustering of Hox genes is not necessary for their proper function
... the body axis. These genes were discovered in the fruit
fly Drosophila melanogaster 90 years ago and have ...quently their function. Therefore, at least in the fruit
fly, the clustering of Hox genes is not necessary for their proper function. The fruit
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