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Tag: "opening" at biology news

Drug That 'Tags' Decision-making Areas Of The Brain May Aid

...ine addiction andother disorders. Nicotine acts by opening specific membrane proteins,called nicotinic receptors, and changing the electrical properties ofthe cell. The human brain coordinates billions of neurons to mediatecomplex behaviors such as an infant learning to recognize his or herparents, a senior ...

“Nano-scissors?laser shows precise surgical capability

... nerve cells at their most basicevolutionary form, opening the door to other experiments on genetic andmolecular factors that determine whether damaged nerve cells regrow.Ben-Yakar developed the femtosecond laser surgery technique using thelaboratories and equipment of Dr. Robert Byer, a Stanford Universityp...

The secret lives of whales

...nd-clips. Reading the Past from DNA “Genetics is opening the door to a huge storehouse of historical information about whales,?says Steve Palumbi of Stanford University. Palumbi has applied new genetic techniques to penetrate over a million years of whale history dating back to the middle of the last serie...

Critical role in programmed cell death identified

... in the cell death machinery of worms and mammals, opening new avenues for studying and targeting a process vital to development and implicated in cancer and autoimmune diseases. The work, reported in the February 17 issue of Nature, demonstrates the role of mitochondria, the cellular power plant, in prompt...

Development of portable infectious disease detector

...ings fromCalifornia. He came across an interesting opening at Pria, located inMenlo Park, and decided to apply. Although Pria decided that he wasn'tthe right person for the job, in their correspondence Pyle expressedpotential interest in collaborating with VIIBRE. Schaffer passed theinformation along to Wiks...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...replaces it with saline. They then make a pinpoint opening in the retina through which they inject fluid to l...ate the ASR. The surgeons then enlarge the pocket opening and insert the implant into the subretinal space. Finally, they reseal the retina over the ASR, inse...

Ophthalmologists implant five patients with artificial silicon retina microchip

...replaces it with saline. They then make a pinpoint opening in the retina through which they inject fluid to l...ate the ASR. The surgeons then enlarge the pocket opening and insert the implant into the subretinal space. Finally, they reseal the retina over the ASR, inse...

Wisconsin researchers identify sleep gene

... getting from the faster to the slower state is by opening ion channels, allowing potassium to flow through them. "Our hypothesis is that if you don't have potassium channels, you won't get slow waves," Cirelli says. "The cell membrane will remain activated, preventing long periods of deep, non-REM sleep." ...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...anes might therefore prevent the disease symptoms, opening up a new realm of therapeutic possibilities, Stamler said. Current therapies fail to treat the disease itself and are instead geared toward minimizing pain and preventing infection, he added. In patients who become anemic, blood transfusions replenis...

NASA study finds snow melt causes large ocean plant blooms

...656 to 3,281 feet). Since the Arabian Sea lacks an opening to the north, the deeper waters are not well ventilated. Also when organic matter produced by phytoplankton breaks down and decomposes, more oxygen gets consumed in the process. An increase in phytoplankton could therefore cause oxygen deficiencies i...

Remote control flies? Fly behavior controlled by laser light

...cape movements--extending their legs, jumping, and opening and rapidly flapping their wings. The laser-triggered remote controls in the giant fiber system worked about 63 percent of the time, while remote controls placed in other nerve cells that were targets of the giant fiber system worked 82 percent of t...

Researchers test new therapy for advanced melanoma

... to open up pores in the tumor cell membrane. This opening allows a small therapeutic molecule -- in this case a molecule known as a DNA plasmid that contains the gene for Interleukin-12 -- to slip inside the melanoma tumor before the membrane reseals. "Melanoma does not respond well to standard chemotherap...

Scientists use manufacturing methods to reconstruct mastodon

...he focus of a lot of my research. Once the exhibit opening is behind us, I hope to be able to concentrate more on the interpretation of this animal's history and what it can tell us about late Pleistocene events." Leading up to the exhibit opening, the museum is offering a semester-long series of public edu...

The making and breaking of microtubules

... the mechanism of microtubule dynamic instability, opening opportunities for new experiments testing the physiological roles of these microtubule intermediates in the cell." Richard Rodewald, a program officer and cell biologist at the National Institute of General Medical Sciences, which funded the researc...

UCR chemist part of team identifying new areas of gene regulation

...g to the previously unknown location of a chemical opening to allow genetic transfers to occur. "We found acetylation at this site near the entry-exit points of the DNA superhelix as it wraps around the nucleosome is required for recruiting the nucleosome remodeling complex SWI/SNF and so regulates gene act...

Going To Extremes To Improve Human Health

... when exercising," Minson explained. "It's already opening up new realms for our research mission." One example of the chamber's potential is enhancing researchers' ability to explore fatigue. "Physical and mental fatigue may not be commonly perceived as work hazards, but fatigue often is a fundamental caus...

Micro-molecule plays big role in birth defects

...es at any stage in the developmental process, thus opening a window into the role of microRNAs in limb development. In cases where Dicer is not present in developing limb tissue, Harfe showed that microRNAs were not processed and limbs were visibly smaller. "Many of the birth defects we see in people are m...

Logging changed ecological balance for monkeys, damaged health

...r these monkeys, leading to behavioral changes and opening the door for multiple parasitic infections. The researchers focused on three primate species, collecting 1,076 fecal samples from the heavily logged area and from an undisturbed, nearby forest from August 1997 to August 2002 as part of a longitudina...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...r these monkeys, leading to behavioral changes and opening the door for multiple parasitic infections. The researchers focused on three primate species, collecting 1,076 fecal samples from the heavily logged area and from an undisturbed, nearby forest from August 1997 to August 2002 as part of a longitudina...

President Bush's cut to AIDS prevention in Africa would be devastating

...r these monkeys, leading to behavioral changes and opening the door for multiple parasitic infections. The researchers focused on three primate species, collecting 1,076 fecal samples from the heavily logged area and from an undisturbed, nearby forest from August 1997 to August 2002 as part of a longitudina...

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