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Tag: "sometimes" at biology news

Mining biotech's data mother lode

...expressing. These over-expressing genes ?numbering sometimes in their thousands, too ?create proteins. The researchers then need to discover what protein interactions are taking place among all the different proteins created by the over-expressing genes. This is not trivial. If a researcher can identify prote...

Past experience of pheromones induces dominant courtship behavior in fruit flies

...ly, he will actively court the younger individual, sometimes becoming aggressive. These young males that have encountered older flies will go on to similarly dominate other adult males that had encountered only young flies--something in the early experience of the "dominant" flies makes them more aggressive. I...

Role of microRNA identified in thyroid cancer

...cell-signaling systems and gene translocations are sometimes present in thyroid tumors, no specific gene mutations have yet been identified that are directly linked to the predisposition of this type of cancer. That led researchers in The Ohio State University Comprehensive Cancer Center to conclude that whil...

FSU biologists describe key role of signal-transcribing gene during cell cycle

...als the result is uncontrolled cell proliferation, sometimes with dire genetic and health consequences. Results of the study are described in the Oct. 1 edition of the journal Development. Led by FSU assistant professor Wu-Min Deng, the research has provided a more precise understanding of just how and where...

Magnetic probe successfully tracks implanted cells in cancer patients

...and dendritic cells carrying a radioactive tag are sometimes used to try to double-check the cells' final resting place. However, in this study, the Dutch team discovered that using MRI and iron oxide particles was able to track the cells' location much more accurately than the radioactive tracking method and...

MIT researcher finds neuron growth in adult brain

...t twigs grow longer. Of several dozen branch tips, sometimes only a handful changed; in all, 14 percent showed structural modifications. Sometimes no change for weeks was followed by a growth spurt. There were incremental changes, some as small as seven microns, the largest a dramatic 90 microns. "The scal...

Chemical compound inhibits tumor growth, size in new mouse study

... golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction no... golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction not only proceeds during roasting or baking but also...

Toasty oat aroma influenced by presence of health-linked polyphenols

... golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction no... golden brown color and toasty aroma, but also can sometimes cause off-flavors or stale odors. The reaction not only proceeds during roasting or baking but also...

University of Delaware researchers develop cancer 'nanobomb'

... part of the body, such as arteries and veins, are sometimes considered inoperable. Nanobombs can be used to target any remaining cancerous cells and can be used in any part of the body, allowing the creation of nanobomb therapy for a wide variety of cancers. Panchapakesan said the method is far better than...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...ects babies from disease-causing organisms mothers sometimes carry before birth," Meshnick said. "We figured that if we found it in blood from the umbilical cord, which links the placenta to the baby, that would be an indication of mixing, that something tore in the placenta and leaked the mothers' virus-conta...

Researchers discover why melanoma is so malignant

...ns discover that perfectly benign melanocytes will sometimes manage to migrate through a patient's body into, say, the lymph nodes. This phenomenon isn't related to cancer, but rather demonstrates the latent ability of melanocytes to travel Finally, the research team found that when Slug was knocked out in me...

Biotech cotton 8: Bugs 0

...mical insecticides than in the past. Insect pests sometimes evolve resistance to such chemicals in just a few years, a fate that was predicted for biotech crops genetically altered to produce Bt toxin, a naturally occurring insecticide. "This is the most complete study to date for monitoring resistance to Bt...

Mammalian Transcriptome Mapped

...anscriptome, or transcriptional landscape as it is sometimes called, is the totality of RNA transcripts produced from DNA, by the cell in any tissue at any given time. It is a measure of how human genes are expressed in living cells, and its complete mapping gives scientists major insights into how our genome ...

Retinal scans eyed for New Mexico show cattle

...g the RFID tags last under New Mexico's varied and sometimes brutal climate conditions," he said. "And, we need to see how these ID technologies work at the sale barn and other commingling areas." ...

Restaurant seafood prices since 1850s help plot marine harvests through history

... provide valuable information and insight into the sometimes startling changes in marine communities along ocean shorelines and in the open seas. By extending trends backward from the baseline of the present, HMAP's unearthed records from fossils to fish taxes give a head start to detecting and managing future...

Biotechnology's newest chemical tool

... molecule called S-Adenosyl-L-methionine (AdoMet), sometimes known as SAM or SAMe. Methyltransferases grab the methyl group from AdoMet and transfer it directly to DNA, positioning it with enviable specificity within the sequence. This specificity suggests that the enzymes can be a useful tool in the laborator...

MicroRNAs have shaped the evolution of the majority of mammalian genes

... it off all together. "We think the microRNAs are sometimes having what you can call a dampening effect," says Bartel, who is also a Howard Hughes Medical Institute investigator and MIT professor of biology. "They appear to be helping cells achieve optimal levels of proteins." "MicroRNAs are leaving an evolu...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

... for aircraft and military armor, Kramer said. "I sometimes speculate that we might help K-State coach Bill Snyder develop better football helmets and shoulder pads for his players," he said. Collaborative research with scientists at the University of Kansas is in the beginning stages to analyze quantitative...

An essential regulator of body weight revealed

.... The task of sorting out the body's diverse and sometimes conflicting signals about hunger and satiety falls to a small cluster of about 5,000 cells in a region of the brain known as the arcuate nucleus. Hormones such as insulin, leptin, and ghrelin deliver information to the arcuate nucleus about whether t...

Software 'agents' could help unmask reality of disease clusters

...ugh review boards and committees for approval, and sometimes it is just not possible." Dr Boulos, together with colleagues from the Department of Computer Science at the University of Bath and the University of Iowa, suggests that new agent software may be able to overcome some of these problems. Software ag...

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