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Tag: "powers" at biology news

Biomarkers isolated from saliva successfully predict oral and breast cancer

...ical Cancer Research, disclosed similar predictive powers for head and neck cancers. "These results indicate that such biomarkers found in saliva, called salivary transcriptomes, can be exploited for robust, high-throughput and reproducible tools for early disease detection," said David T. Wong, professor ...

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

...ow know a little more about how it exercises those powers and we think we can use that knowledge to prepare a preemptive strike." Historically, the terms "plague" or "Black Death" have referred to the bubonic plague, caused by Yersinia pestis and spread by the bites of infected fleas, which acquire the ger...

Study: Well-known protein helps stem cells become secretory cells

...fruit fly's epidermis gives it secretion-promoting powers there as well, the researchers note. In fruit flies, epidermal cells secrete the cuticle, a protective covering for the organism. "Our findings suggest that this single transcription factor directly determines the amount of secretory activity in a g...

New battery technology helps stimulate nerves

...chnology," says West, whose new battery technology powers a "microstimulater" not much larger than a pencil lead and that can be injected near target nerves to help overcome the faulty nervous system wiring at the heart of Parkinson's, epilepsy and incontinence. "The idea is that whenever you have a broken...

Hot-spring bacteria flip a metabolic switch

...at release energy from polyglucose, which probably powers N2 fixation. "These results add to our understanding of microbial mats as complex, integrated communities that are exquisitely adapted to life in the tough hot spring environment," Grossman commented. "There may be several different organisms living...

Rice bioengineers pioneer techniques for knee repair

...s try to capitalize on the body's own regenerative powers to grow replacement tissues that can be transplanted without risk of rejection. Donor cells from the patient are used as a starting place to eliminate rejection risks. Most tissue engineering involves honeycombed plastic templates or hydrogels calle...

A new way of looking at molecular motors

... Most molecular motors have a head, a neck (which powers movement), and a tail. Myosins usually look like two-headed snakes, kinesins like hairpins with a head at each end, and dyneins like three-headed flowers with one stem. Soldati and Foth have confirmed that the motor neck and tail evolved together. Th...

UF scientists trace origin of shark's electric sense

...ers have traced the origin of those electrosensory powers to the same type of embryonic cells that gives rise to many head and facial features in humans. The discovery, reported by University of Florida scientists in the current edition of Evolution & Development, identifies neural crest cells, which a...

Study finds how organs monitor themselves during early development

... into germline stem cells, which have regenerative powers and others will differentiate into eggs. Signals, sensors, feedback A fruit fly takes ten days to go from embryo to larva to pupa to flying insect. The researchers looked at a larval development phase during which the ovary grows remarkably fa...

How does a zebrafish grow a new tail?

... creatures, might still have untapped regenerative powers hidden in their genes. People are constantly renewing blood components, skeletal muscles and skin. We can regenerate liver tissue and repair minor injuries to bone, muscle, the tips of our toes and fingers, and the corneas of our eyes. Finding out ...

How ants find their way

...the landmark was the same." To analyse the ants' powers of recall an ambiguous situation was set up. Ants were trained to search for food between two cylinders of different sizes and then tested with the training cylinders replaced by two cylinders of the same size. Would ants know which cylinder is which...

Researchers image molecular motor structural changes

...rt materials within cells generate the energy that powers their movements. The knowledge could lead to better understanding of the underlying mechanisms of a range of human disorders such as Down syndrome caused by faulty molecular motors, and possibly to the development of new treatments, the researchers ...

New system could drastically reduce herbicide use

...They have also mounted the curved solar panel that powers the robot. "We custom-built a shelf that holds the solar panel," said Gingrich. "It also protects the machine from weather and gives it shade for its vision system." Although the robot is equipped with ultrasonic sensors that go all the way aro...

Fake pesticides threaten food safety

...ort to get governments and regulators to use their powers to enforce regulatory policies. ...

Research project tackles 'regeneration' gap

...ets of regeneration from creatures with remarkable powers of self-renewal, such as salamanders, newts, starfish and flatworms. Fueled by about $6 million in private donations, university support and state matching funds, "The Regeneration Project" will connect scientists who work with adult human stem cell...

Cholera pathogen reveals how bacteria generate energy to live

...and inside. This gradient acts like a battery that powers essential cell functions, such as the movement of the bacterium’s tail, the flagellum. Most cells, including human cells, use gradients of protons for this energy conservation function, but enzymes that work with sodium ions are ideal for experime...

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