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Tag: "researchers" at biology news

Imaging Lymph Nodes with Nanoparticles

...e exciting crossovers from chemistry intomedicine, researchers have developed nanoparticles to improve thediagnostic accuracy of MRI. The nanoparticles contain a centralsuperparamagnetic iron oxide core and are covered by dextran, impartinglong circulation times and biocompatibility. When injectedintravenously, ...

“Nano-scissors?laser shows precise surgical capability

...ce wasn’tcaused by discoloration by the laser, the researchers cut axons theyknew would impair the worms?backward...ich have complex nervous systems. This laserallows researchers to study nerve cells at their most basicevolutionary form, opening the door to other experiments on ...

U-M scientist to talk about tissue engineering at AAAS

...nguishable from nature's original equipment. Many researchers at University of Michigan have focused their tissue engineering efforts on the head and neck, in part because U-M Dentistry plays a leading role in the effort. Dentists have a long tradition of finding ways to fill tooth cavities that will not heal o...

Finding Cures For Tropical Diseases: Is Open Source An Answer?

...ense would keep all discoveries freelyavailable to researchers and--eventually--manufacturers. The absence ofpatents, and the use of volunteer staff, would contain the costs ofdrug development.Ten years ago, say the authors, TDI would not have been feasible. "Thedifference today is the vastly greater size and va...

Genome-wide mouse study yields link to human leukemia

...eukemic stage and those with ALL with normal mice, researchers found that methylation, a chemical process that ad...ethylation in human leukemia. In the process, the researchers also identified a new gene that when methylated, appears to interrupt normal cell death, a process c...

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

... plagued three-dimensional microscopy in the past: researchers could obtain excellent resolution in the plane of the microscope slide, but resolution along the direction of the viewer was very fuzzy. In SPIM, a sample is passed through a thin sheet of light, capturing high-quality images layer-by-layer. The samp...

Learning to fight an adversary that won't stay down

...eases Network. "Pharmaceutical companies and other researchers have put hundreds of millions of dollars into 'modern' approaches to antibiotic discovery over the past six or seven years and this has failed miserably." The scientist, whose work is supported by Science and Engineering Research Canada (NSERC), has...

Scientists seek answers on what activates deadly anthrax spores

...on to many other bacteria, as well as humans. The researchers are working with a non-pathogenic strain of anthrax. The genome sequences of four strains of the bacteria, known scientifically as Bacillus anthracis, have been determined. The group also will be exploring the three-dimensional structures and the fu...

Found: Missing sequence of the human Y chromosome

...the human male,has posed a particular challenge to researchers attempting to decodeits sequence. It contains an extraordinary abundance of repetitiveelements, including transposons and tandem arrays of satellitesequences. This highly repetitive, transcriptionally dormant genomiclandscape, termed "heterochromatin...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

...al encephalitis outbreak in the northeast. The NYU researchers set out to determine how the body can fight viral ...fect of the virus in mice and in cell culture, the researchers found that neurons are sensitive to the protective effect of interferons, inducing pathways to fight...

Study finds more than one-third of human genome regulated by RNA

...nger that shuttles information between thetwo. But researchers from Whitehead Institute for Biomedical Researchan...s to biological research. Itwasn't until 2000 that researchers even knew that microRNAs existed inhumans. Now, in the January 14 edition of the journal Cell, Benja...

Live Recombinant Adenovirus Vaccine Technique Explored

...ave long been proven to be safe and effective. The researchers believe their process for constructing a replicati...e and require multiple immunizations. The Hopkins researchers developed their vaccine prototype using canine oral papillomavirus (COPV), which behaves similarly t...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...d post-surgery patients are evaluated by a team of researchers working at the Eye Center and the VA Rehabilitation R&D Center including Ronald A. Schuchard, PhD and Claire Barnes, PhD. "This clinical trial will help evaluate the potential of Optobionics' ASR® device to provide improved functional vision or ...

The secret lives of whales

...es greater than today. New technologies that allow researchers to observe the deep-sea, now point to another unin... the U.S. Navy’s underwater listening systems took researchers from fixed-point observations such as ships, to synoptic views of the ocean. Clark can move a cursor...

NYU researchers simulate molecular biological clock

...nger that shuttles information between thetwo. But researchers from Whitehead Institute for Biomedical Researchan...s to biological research. Itwasn't until 2000 that researchers even knew that microRNAs existed inhumans. Now, in the January 14 edition of the journal Cell, Benja...

Mitochondrial DNA mutations play significant role in prostate cancer

...ion, 7.8 percenthad mutations in the COI gene. The researchers found both germ-line(inherited) and somatic (acqui...ations are causally related to prostatecancer, the researchers introduced into a prostate cancer cell linemtDNAs harboring a known disease-causing mtDNA mutation a...

Researchers reveal the infectious impact of salmon farms on wild salmon

...a significant impact over a very large area." The researchers isolated the effect of the salmon farm by studying the infection levels of migrating juvenile pink and chum salmon as they approached and passed a salmon farm. Within the study area, the salmon farms are anchored in a long thin fjord. Here the wild s...

Molecular machine may lead to new drugs to combat human diseases

...tions that plague HIV patients. Purdue University researchers froze one of these molecular machines, which are c...ss this molecular machine, Golden said. The other researchers on this study were Hajeong Kim, graduate student, and Elaine Chase, research associate, both of the ...

Jefferson Virologists Coax HIV Out of Hiding

When researchers came up with the powerfulcocktail of anti-HIV drugs known as highly active antiretroviraltherapy (HAART), they hoped they had found a way to finally rid thebody of the virus. But they were wrong. The virus instead goes intohiding, dormant and practic...

Novel Therapy Tested in Mice Could Chase Away Cat Allergies

...tube, University of California, Los Angeles (UCLA) researchers report in the April issue of Nature Medicine, avai...rotein found in cat saliva and dander.?/p> The researchers tested GFD in two different types of allergic mice. One set was genetically engineered to have human...

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