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Tag: "released" at biology news

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...dangered California condors raised in captivity be released near seal and sea lion rookeries so that the birds...ations could be enhanced if captive-bred birds are released near marine mammal breeding grounds along the West Coast. "Condors eat carrion, they don't kill for...

New research examines genetics of successful aging

A study released today at the American College of Neuropsychopharmacology's Annual Meeting revealed that scientists have identified genes related to reaching age 90 with preserved cognition. The study, which was funded by the National Institutes of Health and conduc...

Wild birds help to create human flu vaccine

...de range of pathogens. The White House's recently released "National Strategy for Pandemic Influenza" acknowledges the need to "expand and enhance mechanisms for screening and monitoring animals that may harbor viruses with pandemic potential." Working in tandem with national and international health agenc...

The reason why antiviral therapy can't annihilate HIV infection, and what to do about it

...o various antigens and cytokines. In turn, virions released during the reactivation process may spread to neighboring resting as well as activated CD4+ T cells; direct cell-to-cell spread in the absence of virion release may also occur. The study could impact the design of future therapies aimed at eradicat...

Targeted drug delivery achieved with nanoparticle-aptamer bioconjugates

...ing it possible for their cytotoxic payload to get released directly inside the cancer cells. The combination ...ant fact since the payload of nanoparticles may be released inside the cancer cells in a regulated manner over an extended period of time. The study principle...

Understanding the oceans microbes is key to the Earth's future

...he planet remains largely unstudied, says a report released today by the American Academy of Microbiology, entitled Marine Microbial Diversity: The Key to Earth's Habitability. "Since life most likely began in the oceans, marine microorganisms are the closest living descendants of the original forms of life,...

Researchers use 'trickery' to create immune response against melanoma

...ing it possible for their cytotoxic payload to get released directly inside the cancer cells. The combination ...ant fact since the payload of nanoparticles may be released inside the cancer cells in a regulated manner over an extended period of time. The study principle...

New nanosensor uses quantum dots to detect DNA

...ule that was attached to the second probe. The Cy5 released this energy as a fluorescent glow. If the target DNA had not been present in the solution, the four components would not have joined together, and the distinctive glow would not have appeared. Each quantum dot can connect to up to about 60 DNA sequen...

UCSD study finds anthrax toxins also harmful to fruit flies

...ected early. But after a certain point, the toxins released in the bloodstream can kill the patient even after antibiotic treatment. The more we understand about how the toxins function, the better we'll be able to design effective co-operative or "adjunctive" therapies." ...

MRSA use amoeba to spread, new research shows

...es that are effective in all scenarios." Recently released figures show that infections caused by MRSA rose 5 per cent between 2003 and 2004, and mortality rates increased 15-fold between 1993 and 2002. ...

Cellular scale drug delivery from the inside out

...d caps, how they're held in place, and how they're released is the focus of Lin's work. The caps can be dendrimers, biodegradable polymers, genes, proteins, metallic nanoparticles, or semiconductor nanocrystals ?also known as quantum dots ?and are held in place by chemical bonds. Once the nanospheres are insi...

Infection 'alarm' yields clues to immune system behavior

...t the end of this pathway, NF-kappaB molecules are released to carry the alarm into the nucleus, the cell's control center. Inside the nucleus, the NF-kappaB molecules switch on genes that produce infection-fighting proteins. These proteins launch several strategies to fight the microscopic invaders, such as ...

Liquid ventilation

...orocarbon to the very last alveola. Here oxygen is released and carbon dioxide taken up in the same way as on the respiration surface. Then the respirator extracts part of the perfluorocarbon from the lungs and introduces the next oxygenated dose. The same machine carries out the removal of CO2 from the perfl...

UW scientists unravel critical genetic puzzle for flu virus replication

... to help make more infectious particles, which are released from the cell and go on to infect other cells. Using a technique known as electron tomography, a method that enables scientists to generate three-dimensional images of microscopic organisms and structures, Kawaoka and his colleagues, in virtual fash...

'Banana-jawed' fossil mammal linked to rare sound-producing skill

... the Journal of Vertebrate Paleontology, which was released in mid-April. The study's lead author is Donald DeBlieux, a former research associate at the Duke Lemur Center (formerly the Primate Center) who is now at the Utah Geological Survey. Other team members from Duke include Elwyn Simons, head of the Divi...

Of mice, men, trees and the global carbon cycle

...calculate are the global amounts of carbon dioxide released by living, respiring plants; the amounts released as plants are decomposed by microbes; and the amounts being absorbed and emitted by oceans. "If al...

'Accelerated evolution' converts RNA enzyme to DNA enzyme in vitro

...sition of a few critical mutations. The study was released in an advance online version of the journal Chemistry & Biology. Scripps Research Professor Gerald F. Joyce, a member of the Skaggs Institute for Chemical Biology whose laboratory conducted the study, said, "During early life on earth both gene...

Low-cost drug gaining favor for use in HIV-infected children in poor countries

...in HIV-positive children. The new review is being released as health policy makers anticipate updated recomme...The WHO updated recommendations -- scheduled to be released early this year -- will provide some guidance for countries as they make their own decisions, Vitóri...

Red Tide causes sea turtle die-off in El Salvador

...of some 200 sea turtles, according to test results released today by the Wildlife Conservation Society (WCS) and other organizations. Responding to requests from the Salvadoran government and the US Agency for International Development (USAID)for assistance, WCS veterinary pathologist Dr. Julie White journey...

How the brain learns to become addicted

...ing that orexins are important regulatory peptides released by a brain center called the lateral hypothalamus. It was also known that orexins tend to activate circuitry in a region called the ventral tegmental area (VTA), known to be a critical site of neural adaptation, or plasticity, induced by addictive dr...

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