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Tag: "researchers" at biology news

Sea skate experiment sheds light on human cell transport

... along with salts and other organic material. The researchers made their discovery by using a plant-based substance to block an enzyme that causes phosphorylation. The result: The gates wouldn't open. These findings are published in the current issue of the American Journal of Physiology: Regulatory, Integrativ...

Color-blind method opens new doors in DNA sequencing

...ind" method of fluorescence detection developed by researchers at Baylor College of Medicine (BCM) and Rice Unive... each matched to a particular dye. PME enables the researchers to take advantage of the entire visible spectrum, eliminating the problem of cross-talk between dyes...

Female sex hormones play a vital role in defense against sexually transmitted diseases

...s into clinical studies is the next step. McMaster researchers are currently discussing the design of a study with infectious disease clinicians in Hamilton, which may begin in as early as the next few months. Additionally they will be looking at issues of co-infection with both HIV-1 and HSV-2 which is a big pr...

Yale Scientists Find MicroRNA Regulates Ras Cancer Gene

... M.D., director of Yale Cancer Center. Other Yale researchers were Steven M. Johnson, Helge Grosshans and Kristy L. Reinert; collaborators at Ambion, Inc. included Jaclyn Shingara, Mike Byrom, Rich Jarvis, Angie Cheng, Emmanuel Labourier and David Brown. Support for the research came from the Human Frontiers Sc...

Mouse brain tumors mimic those in human genetic disorder

...eared onlyafter the tumor was fully developed. The researchers found that bythree weeks of age, the mutant mice h...vided by new blood vesselsand microglia."Next, the researchers used the mouse model to investigate a clinicalconcern. Physicians rely on several tests to determine...

New Clues Add 40,000 Years to Age of Human Species

...ology expedition to Ethiopia's Lake Turkana basin, researchers have uncovered evidence suggesting human bones fou...d at that time are roughly 195,000 years old. The researchers believe the findings may bolster the “Out-of-Africa?hypothesis that suggests we all trace to an anci...

Spider Venom Could Yield Eco-Friendly Insecticides

...tance when provoked, making it relatively easy for researchers to aspirate venom directly from its fangs. Since A... could do more than control agricultural pests. As researchers inventory more kinds of venom and uncover insecticide leads, they may be able to target insects that...

New imaging method gives early indication if brain cancer therapy is effective, U-M study shows

...tudy of 20 people with malignant brain tumors, the researchers found that any change in the functional diffusion ...sion MRI and the functional diffusion map, the U-M researchers were able to predict with 100 percent accuracy after only three weeks of treatment whether the thera...

Gene variations explain drug dose required to control seizures

... control their seizures, suggest basic findings by researchers at the Duke University Institute for Genome Scienc... of anti-epilepsy drugs appropriate for them. The researchers found that variants of two genes were more likely to be found in patients who required higher dosage...

Solution to Pollution: New Bacteria Eats Toxic Waste

Utah State University researchers recently discovered a new bacteria that is a natur... the toxic chemicals. Sims then collaborated with researchers from the Utah State biology department to identify the microbes. The three Libby-site microbes respo...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

... usually die before they reach the age of two. The researchers also said their approach of targeting corrective g...or the enzyme had been rendered nonfunctional, the researchers demonstrated they could introduce the functioning gene and correct glycogen buildup in heart and ske...

Enzyme shown to help protect genomic stability

... or treating cancer. Now, an investigation led by researchers at The Wistar Institute has shown that an enzyme known as Ubp10 plays a vital role in protecting the telomeric regions of the genome from potential destabilizing molecular events. The enzyme helps to keep the genome structurally closed, unavailable f...

BRCA1 causes ovarian cancer through indirect, biochemical route

...rian cell sends to another, according to a team of researchers led by scientists at the USC/Norris Comprehensive Cancer Center and the Keck School of Medicine of the University of Southern California. Their work is being published in the March 29 issue of the journal Current Biology. "Before, we thought this g...

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

...red the genome of one strain of C. neoformanswhile researchers led by Richard Hyman at Stanford University's Geno...human pathogenof global importance that is used by researchers as a model for fungalpathogenesis. Since the 1980s, the number of Cryptococcus infectionshas increas...

Needling Chromosomes Reveals Cell Division Secret

...reseparated; but if they snapped back together the researchers would knowthe chromatids were still attached. Paliulis was a Duke graduatestudent when she performed the experiments, but is now a postdoctoralfellow at the University of North Carolina at Chapel HillPaliulis's skill in the task was extraordinary, sa...

Purdue proves concept of using nano-materials for drug discovery

... for a variety of diseases, including cancer. The researchers created a chip about one centimeter square that ho...now is a proof of concept," said Lee, one of three researchers who wrote a paper that details new findings in the current issue (Feb. 15) of the journal Langmuir. ...

In the sea slug's defense against lobsters, confusion is key

...cilitates the slug's ultimate escape. The team of researchers conducting the study, Cynthia Kicklighter, Zeni Sh...ions resemble activation of a feeding pathway, the researchers named this novel chemical defense "phagomimicry." The stickiness of the slug's secretions appears to...

Researchers identify target for cancer drugs

...e believe that we have identified a component that researchers have been looking for since 1996," says Whitehead ...e has only been partially understood. As a result, researchers have lacked a clear idea about how to prevent the process. However, in the February 18 issue of the ...

Plant hemoglobins: Oxygen handlers critical for nitrogen fixation

... of plant hemoglobins has been unclear. A group of researchers reveal this week that one such mysterious plant he...ps and pastures each year. As reported this week, researchers led by Dr. Michael Udvardi at the Max Planck Institute of Molecular Plant Physiology have succeeded ...

Scientists rid stem cell culture of key animal cells

...isconsin-Madison have crafted a recipe that allows researchers to grow human embryonic stem cells in the absence of mouse-derived "feeder" cells, long thought to be a source of potential contamination for the therapeutically promising cells. The new findings, appear today (Feb. 17) in the journal Nature Methods...

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