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Tag: "sense" at biology news

Tarantula venom and chili peppers target same pain sensor

...pain by exciting the same nerve cells in mice that sense high temperatures and the hot, spicy ingredient in chili peppers, UCSF scientists have discovered. The findings demonstrate that some plants and animals have evolved the same molecular strategy to deter predators -- triggering pain by activating a s...

Brown scientists map structure of DNA-doctoring protein complex

...teins and DNA are arranged, you have a much better sense of their function," said Xingmin Sun, a postdoctoral research associate in the Landy lab and the lead author of the journal article. "And once you know their function, you begin to see how the real work inside cells gets done." Sun said solving th...

Robotic whiskers can sense three-dimensional environment

...have now developed arrays of robotic whiskers that sense in two dimensions, mimicking the capabilities of m...ian whiskers. They demonstrate that the arrays can sense information about both object shape and fluid flow. A paper about the arrays, which may find appl...

Researchers identify new weapon to fight deadly bacterial sepsis

...ocesses that depend on this enzyme, and so it made sense to look into with regard to sepsis, which we knew was a runaway inflammatory process," Srivastava said. "We're hoping that when an aldose reductase inhibitor is approved as a drug in the U.S. -- one is already in use in Japan for diabetes, by the way...

Plants give up answers in the war on bacteria

...tricate part of the plant's immune system that can sense danger and respond by shutting down. The lab performed experiments on Arabadopsis, a common laboratory plant, but the mechanisms could be universal across all land plants. "When we started looking more closely, and put bacteria on a plant surface...

Drug can quickly mobilize an army of cells to repair injury

...will be effective. But Link feels it may make more sense to mobilize the cells into the bloodstream with agents like AMD3100. "It might be better to let the appropriate cells find their way through the circulation to the site of injury or low oxygen," he says. "That way you enhance a normal repair mechani...

Hormone linked to brain's cravings for food and other energy sources

... influence on various brain functions. "This makes sense because the major driving force of life is seeking energy to survive," he said. "Future studies will explore the relationships between ghrelin and cocaine addiction." ...

Motorola researchers develop selective sensors based on carbon nanotubes

...the platform can be applied to many other areas to sense toxic chemicals in the air, or they can be used as biosensors when applied to medicine." "Integration of nanosensors into devices and sensor networks will enable the detection of biological and chemical agents at very low concentrations, which cou...

Scientists discover role for dueling RNAs

...f a gene called IME4, the antisense RNA blocks the sense RNA. In other words, the gene disables its own abi...uce IME4 antisense RNA, blocking the production of sense RNA. Antisense IME4, then, safeguards against meiosis in cells that can't handle it. "This is t...

Mirrors in the mind: New studies elucidate how the brain reflects onto itself the actions of others

...hand illusion--for experimentally manipulating the sense of body ownership. This approach was useful because without such illusion, it is difficult to identify meaningful differences in how the brain responds to actions performed by oneself or others--the two scenarios involve significant differences in, f...

Bitter taste identifies poisons in foods

...utionary, genetic, receptor, and perceptual. "The sense of taste enables us to detect bitter toxins within foods, and genetically-based differences in our bitter taste receptors affect how we each perceive foods containing a particular set of toxins," summarizes Breslin. Breslin notes, "The contents of t...

Otherworldly bacteria discovered two miles down

... "These bacteria are truly unique, in the purest sense of the word," said lead author Li-Hung Lin, now at National Taiwan University, who performed many of the analyses as a doctoral student at Princeton and as a postdoctoral researcher at the Carnegie Institution's Geophysical Laboratory. As Lin exp...

Reading Shakespeare has dramatic effect on human brain

...anner that produces a sudden burst of activity - a sense of drama created out of the simplest of things." ...brain reads a sentence that does not make semantic sense it registers what we call a N400 effect ?a negative wave modulation. When the brain reads a grammat...

Study finds the air rich with bacteria

... are harmless. "Before this study, no one had a sense of the diversity of the microbes in the air," says lead author Gary Andersen of Berkeley Lab's Earth Sciences Division. The research, which will be published this week in the online early edition of the Proceedings of the National Academy of Scie...

Critical hearing gene helps send auditory messages to brain

...ear is particularly intriguing, she added, "in the sense that it operates with extreme temporal precision." In mammals, the hearing organ, or cochlea, is a snail-shaped structure of the inner ear that is filled with a watery fluid. When that liquid moves in response to sound vibrations, thousands of sens...

Coral reefs are increasingly vulnerable to angry oceans

...s. "Coral reef experts have long had a general sense of which coral shapes are more vulnerable during storms than others," said first author Joshua Madin, a scientist with the National Center for Ecological Analysis and Synthesis (NCEAS) at the University of California, Santa Barbara. "However, to real...

Gene therapy research switches off joint inflammation; switches on genetic process of joint repair

...made from bricks of glucosamine, and then it makes sense that to rebuild a functional wall that you need the master bricklayer and not just the simple approach of getting more bricks." Elaborating Bobrowski said, "By activating the joints master bricklayer Reparagen offers a more effective approach for reg...

Singing for survival

...ity among ape species, especially gibbons who in a sense bridge the evolutionary gap between great apes and monkeys, could shed light on when this ability developed in the primate lineage." ...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...mething heretofore thought impossible -- using the sense of smell under water. The results of the research...n. "When mammals adapt to living in water, their sense of smell usually degenerates. The primary example is the cetaceans ?whales and dolphins ?many of whi...

Study offers window into human behavior, brain disease

...At the same time, he says, the finding "gives us a sense that we might be able to start to figure out what makes us unique as humans, what makes our brains different from those of other species. And that's pretty exciting, too." Bruce Miller, MD, the A.W. & Mary Margaret Clausen Distinguished Profess...

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