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Tag: "days" at biology news

Growth in the sea comes down to a struggle for iron

...he two vessels worked together in the patch for 12 days but operated independently most of the time. New s...he Kilo Moana returned to Hawaii after spending 42 days at sea. Early results suggest that the struggle for iron may indeed follow something like what happe...

Novel antiviral technology inhibits RSV infection in mice

... substantial protectionfrom severe infections over days to weeks."Dr. Mohapatra and his team developed nose drops containing vectorscapable of producing small fragments of RNA (siRNA). These fragmentswere encapsulated within chitosan nanoparticles -- minisculenaturally-occurring, biodegradable particles t...

Research on Worms Yields Clues on Aging

...de, extended theworms' lives from an average of 17 days to an average of 20 days.Further tests on anticonvulsants revealed that they also increased lifespan, with the drug trimethadione having the largest effect andextending the worms' lives by 47 percent.The group then sought to uncover the underlying me...

Researchers reveal the infectious impact of salmon farms on wild salmon

...g only half a gram. "The youngest fish can be only days old when they encounter a farm," says Krkosek. "Some of these fish are so young their egg sacks haven't been fully absorbed ?even fish this small are infected." The anchored farms, open cages of closely packed salmon, are aquatic feedlots providing ...

Scientists decipher genome of fungus that can cause life-threatening infections

...on, survivalwithout therapy is as short as 7 to 10 days following diagnosis."The major virulence factor of C. neoformans is its extensivepolysaccharide capsule, an elaborate and dynamic structure surroundingthe cell wall that is unique among fungi that affect humans. TheScience study identified greater th...

Open microfluidic and nanofluidic systems

...hysician's office without the need to wait several days before the sample has been returned from specialized laboratories. Other applications include customized chips for space travel in order to monitor microbes inside spacecraft or to detect life on other planets. An obvious prerequisite for such minia...

Researchers discover molecule that causes secondary stroke

...ain, cerebral vasospasm usually occurs three to 10 days following a massive brain bleed known as hemorrhagic stroke. Sixty percent of patients who survive the initial stroke develop vasospasm, and 40 percent of them die from it. Vasospasm, says neurology department researcher Joseph Clark, PhD, results f...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

... of their mammary glands by the time there are 120 days old. In thisexperiment, they vaccinated the mice three times with VRP-neu, and “nota single mouse developed a tumor,?says Lachman.Lachman suggests the vaccine might prove helpful in keeping humanHER2/neu tumors from metastasizing, or spreading, but a...

Highly adaptable genome in gut bacterium key to intestinal health

...omplex carbohydrates and low in simple sugars. Ten days later, the activity of all genes in the bacterial genome was surveyed in B. theta from the mice's guts. The research team found that 1,237 of the bacterium's 4,779 genes were highly active compared to B. theta grown in a simple-sugar soup. The predo...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

... of their mammary glands by the time there are 120 days old. In thisexperiment, they vaccinated the mice three times with VRP-neu, and “nota single mouse developed a tumor,?says Lachman.Lachman suggests the vaccine might prove helpful in keeping humanHER2/neu tumors from metastasizing, or spreading, but a...

Papers of DNA Pioneer and Nobel Laureate Francis Crick Added to National Library of Medicine’s Profiles in Science Web Site

...entific knowledge, editing his latest article just days before his death from colon cancer on July 28, 2004, at age 88. The online exhibition features correspondence, lecture notes, draft and published articles, laboratory notebooks, and photographs from the Francis Crick collection at the Wellcome Libra...

Research Gives Hope For Liver Damage

... the next wave ofimmune cells, produced only a few days later, change function to breakdown and reabsorb the scarring. These findings, published in theJanuary edition of Journal of Clinical Investigation, will help doctorsto understand the mechanisms by which the liver is damaged and repairedand may lead ...

Nano-Probes Allow an Inside Look at Cell Nuclei

... the cell. In addition, quantum dots fluoresce for days at a resolution high enough to detect biological events carried out by single molecules. In contrast, conventional labels such as organic fluorescent dyes and green fluorescent proteins only fluoresce for a few minutes at a high resolution. These lab...

Study Models Impact Of Anthrax Vaccine

... prevented ifantibiotics were distributed within 6 days after exposure and patientswere to take them for 6...l workers did not begin taking antibiotics until 9 days afterexposure.The current licensed anthrax vaccine requires six doses over an18-month period to prov...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...ng century-old cell-staining methods that can take days to complete and may give false readings. A lightning-fast laser technique, led by Sandia National Laboratories researcher Paul Gourley, has provided laboratory demonstrations of accurate, real-time, high-throughput identification of liver tumor cell...

Photos show jaguar vamping for camera

...o be taken over a five-and-a-half hour period. Two days earlier, the same cat languished for 90 minutes, when 19 photos were shot. Biologists from the Bronx Zoo-based Wildlife Conservation Society (WCS) are using the remote cameras to census the park, which may contain more jaguars than any protected are...

Unprecedented water level rise in Somalia

In East Africa, where days of heavy rains and flooding have led to numerous deaths and entire villages being wiped out, locals are reporting an unprecedented rise in Somalia's Shabelle River and that a major water surge may be headed into the centre of the country, the United ...

Antibiotic might fight HIV-induced neurological problems

...dard measures. After the same amount of time -- 84 days after infection -- five of the six untreated monkeys had evidence of moderate or severe encephalitis and much more physical evidence of damage to brain cells, the researchers report. "The infection in the animal model is predictable and aggressive, ...

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

... her colleagues tested the adults' memory about 60 days after birth. To test memory, each rat was allowed to explore a novel experimental chamber for several minutes on the first day. On the second day, each rat was placed back into the chamber and was shocked for two seconds and then put back in its home...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

...es many administration requirements. Within a few days of unpacking more than 400 boxes containing the Dell nodes, bioengineering researchers this week had modeled how electrical impulses trigger contractions in the heart of a pig. ...

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