Tag: "fruit" at biology news
Dying cells encourage neighbors to grow
...rate that when cells from the imaginal disc in the fruit
fly Drosophila are stimulated to undergo apoptosis but experimentally manipulated so that they do not actually die ("undead cells"), they stimulate the growth of neighboring tissue. The researchers demonstrate that the undead cells promote cell growt...
Cells in retina found to behave like soap bubbles
...cells we studied, those found in the retina of the fruit
fly, adopt mathematically predictable shapes and configurations," said Richard W. Carthew, professor of biochemistry, molecular biology and cell biology and a co-author on the paper. "Like bubbles, life has co-opted a physical tendency for surfaces t...
Study in Royal Society journals presents evidence for inherited factors in homosexuality
...d the expression level of over 14,000 genes in the fruit
fly and identified 27 that were strongly associated with differences in male reproductive success. One of these genes is known to cause pesticide resistance, and our results suggest that there is a cost to resistance in terms of decreased male succes...
Channel protein converts vibrations to electrical signal
...lar to a TRP channel that is mechanosensory in the fruit
fly a molecule known as NOMPC, identified by HHMI investigator Charles S. Zuker. In other parts of the nervous system, however, the TRPA1 channel is activated by such stimuli as painfully cold temperatures and pungent chemicals like mustard, cinnamo...
Flies have morning and evening clocks
...d the long sought dual body clocks in the brain of fruit
flies that separately govern bursts of morning and...re, cardiac output, and oxygen consumption. In the fruit
fly Drosophila, however, the circadian clock has its most overt effect on the fly's level of acti...
Scientists explain how morphogens work
...plasma membrane. The Lin study is based on the fruit
fly model (Drosophila). He and his colleagues studied the fruit
fly protein called Decapentaplegic (Dpp). Dpp is a morphogen molecule that is similar in structure t...
Nitric oxide is essential for animal development
...hat, indeed, NOS is crucial for development in the fruit
fly, Drosophila, and that flies lacking the gene d...t that, unlike those of mammals, the genome of the fruit
fly has only one NOS gene and is thus more amenable to mutagenesis and genetic analysis. After a lar...
Singled out: Spotting mutant neurons in normal brains offers clues to Fragile X
...X brain defect has remained a mystery. Employing a fruit
fly model of the disease, the researchers utilized a new technique that allows the generation of single mutant nerve cells that are marked by their expression of a glowing fluorescent protein, making these nerve cells distinctly visible in an otherwi...
Wistar study demonstrates heritability of non-genomic information
...author on the new study. In their experiments with fruit
flies, Zhou and his colleagues investigated certai...in evolution, appearing in species as divergent as fruit
flies, mice, and humans. Large genes often employ highly sophisticated regulatory mechanisms: a mand...
New Royal Society journal studies
...carotenoid intake measured as an amount of dietary fruit
(a rich source of carotenoids) was associated with reduced plumage reflectance in the ultraviolet, a band of wavelengths visible to birds but not humans. The effect probably arises from increased pigment concentrations and modifications to the struct...
New gene target found for common brain tumors in children
...stem-cell growth and survival, has been studied in fruit
flies for almost a century. The research team at the Johns Hopkins Pathology Department and Kimmel Cancer Center found that a protein made by the Notch2 gene promotes cancer cell growth by 27 percent in a childhood brain tumor, called medulloblastom...
New studies regarding the efficacy of antioxidants and their impact on standard cancer treatment
... little or no toxicity that was developed from the fruit
of Aegle marmelos (AME) (Ganesh Chandra Jagetia, Ponemone Venkatesh and Manjeshwar Shrinath Baliga). Compelling evidence that antioxidants do not interfere with chemotherapeutics and may actually protect normal cells from cytotoxic onslaught (Carmi...
Scientists advocate genomic sequencing of 'living fossil'
...clusters are not present in invertebrates, such as fruit
fly (Drosophila melanogaster) or roundworm (Caenorhabditis elegans), but they are found in more evolutionarily complex species, including all vertebrates. Protocadherin gene clusters are composed of a tandem array of multiple gene copies, making the...
New fossil may be closest yet to ancestor of all great apes
...ms and from its tooth shape appears to have been a fruit
eater. The skeleton was discovered at a new paleontological site, Barranc de Can Vila 1, near Barcelona. Pierolapithecus ' ribcage, lower spine and wrist show key signs of specialized climbing abilities that link this specimen with modern ...
'Blind' cells see the light; maybe someday humans will, too
...r starting material the potassium channel found in fruit
flies -- so that, when expressed in a cell, the channel is broken and always stays open. They also added an extra molecule -- the amino acid cysteine -- to the channel protein so that, once the protein gets in place in the cell membrane, this molecul...
Flies on crack
...York University have discovered a gene mutation in fruit
flies that alters sensitivity to crack cocaine and...tion of the Drosophila LIM-only (Lmo) gene. Normal fruit
flies increase their activity when exposed to low doses of crack cocaine over a one-minute period. A...
University of Texas at Austin researchers identify drug-tolerance mechanism in flies
... protein found on the surface of nerve cells makes fruit
flies tolerant to a drug after just a single, brie...ratory determined this by studying the response of fruit
flies (Drosophila) to a 15-minute exposure to benzyl alcohol coated on the inner walls of test tubes...
Citrus shows promise for certain childhood cancer
...beautiful potential." Patil calls citrus fruit
"a vast reservoir of anti-carcinogens." As a plant...rient-packed pigments that give color and taste to fruit
may work against cancer in any of three ways: prevent it from forming, slow the growth of existing ...
The logic of life brings order to our genes
...edge from the foremost guinea pig of genetics: the fruit
fly. More is known about the details of the genetic network here than in humans. "In the fruit
fly one can find almost 200 rules that are canalyzing, and this property is most likely general and ...
Chimpanzee brains are asymmetrical in key areas and their handedness reflects it
...hich hand chimps used to feed themselves chunks of fruit
while holding the whole piece, such as a banana, in the other hand), and a measure of coordinated bimanual actions (which hand chimps used to fish peanut butter from a plastic tube with a finger). Left-handed and right-handed chimps differed rela...
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