Tag: "exit" at biology news

Bone marrow transplants may be improved due to the uncovering of a key mechanism

...covered a key mechanism that enables stem cells to exit the bone marrow into the blood circulation of heal... able to "cast anchor" to begin with and will also exit the marrow. The scientists found that stem cell mobilization peaked when SDF-1 levels in the bone ma...

May media highlights: GEOLOGY and GSA TODAY

...g delta on the middle shelf south of the Bosphorus exit that was active only from ~10-9 ka and that records flow out of the Black Sea. Ryans and Pitmans argument for a catastrophic Black Sea flood hinges on the rapid first appearance of euryhaline (Mediterranean) mollusks on Black Sea shelves at ~7.5 ka. ...

Purdue to help NASA create life-supporting ecosystem in space

...thlights' you see in movie theaters and in airline exit rows." Researchers are studying about 15 crops for possible use in the advanced life support system. The work will address a range of issues. "How are we going to store foods in space so they don't degrade microbially or get spoiled?" Mitchell asked....

A gateway for Ebola/Marburg viruses

...ng the mechanisms by which these viruses enter and exit the cells they infect. Microdomains sometimes called lipid rafts because of their detergent insoluble and lateral mobility characteristics exist on the outer membranes of cells allowing for the colocalization of molecules necessary for the cells f...

New mouse model enables studies of heart, brain and spinal cord

... muscle itself as well as the two big vessels that exit the heart. Children born with a mutation of this gene are often called 'blue babies' because they have only one big vessel coming off their heart instead of a separate aorta, the major vessel that sends blood out to the body, and pulmonary trunk, whi...

Engineers develop odour eaters for pulp mills

...s wood chips or plastic spheres - is placed at the exit gas stream at the end of the manufacturing process before the sulphur compounds are released into the air. The sulphur compounds are food sources for the bacteria and, as the bacteria eat them, they also eat the smell. In a paper published in Environ...

LabNotes -- research highlights from Pacific Northwest National Laboratory

...relayed to an optical sensor mounted at the room's exit point, which sounds an alarm if a worker leaves without fully securing the safe. Secure Safe is being tested at several Department of Energy sites to enhance information security, but other potential applications include bank vaults, hospital medicin...

New research may lead to more effective treatment of asthmatic attacks

...e can be varied. While they are transported to the exit of the system by a filtered airflow (high-efficiency particle arrester filter), the droplets evaporate, after which the formed particles are sampled and/or inhaled (for accurate size measurements, particles need to be solid). EHDA produces droplets f...

New clues to how RNA exits the nucleus

...scientists proved that HuR could, indeed transport exit the nucleus via either a CRM1-dependent or CRM1-independent pathway. Steitz and Gallouzi also used their selective blocking method to show that both pathways were important in transporting mRNA for the early response gene c-fos. And, they revealed th...

Seat of cellular bus system for protein passengers found by Dartmouth Medical School researchers

...rrier vessels with many possible stops before they exit the cell and continue through the blood to reach their destination. Now Dartmouth Medical School biochemists have discovered a key receptor for sorting which proteins stay and which leave, documenting for the first time what many scientists theorized...

Blame North America megafauna extinction on climate change, not human ancestors

...tchwork aggregation of plant communities ceased to exit and there was a massive reorganization of biotic communities. At the same time, new data developed by Russell Graham, a paleontologist with the Denver Museum, shows that small mammals such as shrews and voles were moving about the landscape and beco...

Researchers discover new way to block HIV transmission by removing cholesterol from cell membrane: Hopkins study finds HIV requires cholesterol to infect

...at cholesterol was not only crucial for the virus' exit but also for its entrance into a cell. When exposed to the virus, treated cells resisted HIV infection. Upon further inspection, the researchers discovered that removing cholesterol reduces the number of so-called chemokine receptors, HIV co-recepto...

Intrakine blockade of a chemokine receptor

...mas fail to cross cell monolayers in culture or to exit the bloodstream when introduced in vivo. A control intrakine that blocks surface expression of a different chemokine receptor, CCR4, does not affect the ability of these cells to disseminate or generate malignant tumors, indicating that SDF-1 signal...

Researchers' description of the regulation of a new family of ion channels may open doors for therapies for a variety of conditions

... pores in cells. These pores control the entry and exit of substances such as sodium, potassium and calcium into the body's cells. In electrically excitable cells, such as those in the brain and the heart, ion channels help drive the electrical system that runs the body and generate electrical signals bet...

Cytoplasmic FRAP must enter and exit nucleus to perform

...oreign agents. If FRAP fails to briefly enter and exit the nucleus then some crucial proteins fail to syn...losely at what happens when FRAP is not allowed to exit the nucleus led to a startling discovery. "We found to our surprise that the subsequent signal tran...

Scientists discover new stage in malarial infection

...ge from red blood cells in two steps. "First, they exit enclosed in a sac they have made. Then the sac quickly bursts, releasing the parasites," Goldberg said. Enzymes that break down proteinsproteaseswere thought to help the parasite emerge from red blood cells. And inhibitors of these enzymes are effect...

Penn State researchers unravel key facts about how a virus exits a host cell

...e-understood machinery that allows retroviruses to exit or bud from the cell surface before re-infecting a new cell, which may offer a new target for the development of a single antiviral drug for a wide spectrum of viral diseases such as AIDS, rabies, ebola, measles, mumps or influenza. Specifical...

On the floor of the sea: watch while biologists search for rare white abalone

...r future restoration efforts. Where: Meet at the exit ramp from the Catalina Express on Catalina Island (atAvalon). For 8:30 a.m. trip, meet at 8 a..m.; for 11 a.m. trip, meet at 10:30;for 2:30 p.m. trip, meet at 2 p.m. We will make a short walk to the water taxi,which will take us out to the research v...

USGS designs fishway for Little Falls Dam

...th to 495 West (exit 27 towardSilver Spring). Take exit 40 and follow signs to Cabin John Parkway. Continuetwo miles and turn left following signs to MacArthur Blvd. At the stop sign,turn right on MacArthur Blvd. Continue 2.3 miles. The main gate of theDalecarlia Water Treatment Plant will be on your rig...

USGS director and science camp kids to pull invaders from USGS backyard

...eltway (I-495). Take the Dulles Toll Road west to exit 12, Reston Parkway. Turn left (south) onto Reston Parkway. At the 3rd light, turn right (west) ontoSouth Lakes Drive and proceed _ mile to the USGS, which will be on your right. Asign indicates Visitor Parking. The event will occur opposite the flag...

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(Date:4/17/2014)... of chronic inflammation in non-cancerous prostate tissue may have ... than those with no inflammation, according to results of ... Hopkins Kimmel Cancer Center. , The link between persistent ... so-called high-grade prostate cancer those with a Gleason ... of the most aggressive and rapidly growing prostate cancers. ...
(Date:4/17/2014)... Experimental Biology and Medicine a multidisciplinary research ... Kenis in the Institute of Genomic Biology (IGB) ... Urbana-Champaign describe their recent work on subcellular redox ... cell functions including energy metabolism, signaling, and transcriptional ... normal cellular behavior, redox status has been recognized ...
(Date:4/17/2014)... biology team has created a new technology for ... could travel the body and selectively target cancer ... biological devices that monitor and modify human physiology ... However, no existing technology enabled bioengineers to build ... and respond in a customized fashion. , "The ...
(Date:4/17/2014)... 2014-- Colic affects about one in five infants in ... visits during the first several months after birth. Research ... showing promise; however, the April 1, 2014 issue of ... reported on a study, "Probiotics and Infant Colic," concluding ... for infant colic did not reduce crying ...
(Date:4/17/2014)... ward off depression among retirees, particularly among those who ... The Journals of Gerontology, Series B: Psychological Sciences ... Internet Use and Depression Among Retired Older Adults in ... report that Internet use reduced the probability of a ... , Late-life depression affects between 5 and 10 ...
Breaking Medicine News(10 mins):Health News:Chronic inflammation linked to 'high-grade' prostate cancer 2Health News:Chronic inflammation linked to 'high-grade' prostate cancer 3Health News:Live cell imaging reveals distinct alterations of subcellular glutathione potentials 2Health News:Building 'smart' cell-based therapies 2Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2Health News:Internet use may cut retirees' depression 2
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