Tag: "researchers" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...very made independently by both Harvard and French researchers that a gene called GPR54 is defective in children ...ule that activates a signal receptor of GPR54, the researchers looked to the nonhuman primate, the only animal with a reproductive system in common with the human'...

Chemists create 'Superbowl' molecule; May lead to better health

...d treatment outcomes and perhaps saving lives, the researchers say. The molecule also shows promise for a wide range of other applications, including the removal of environmental toxins and aiding in chemical purification procedures, the investigators say. Their study was published in the Dec. 29 print issue of...

DNA Molecules Used To Assemble Nanoparticles

University of Michigan researchers have developed a faster, more efficient way to pro... complex carries a fluorescent protein so that the researchers can track their movement. A series of experiments using cell sorters, 3-D microscopes and other too...

Bioartificial kidney under study at MCG

...nterchange, a nonprofit organization that provides researchers with tissues and organs anatomically unsuitable fo...the efficacy of the device over 72 hours, although researchers say that if the device is eventually approved by the Food and Drug Administration, it likely would b...

Wisconsin scientists grow critical nerve cells

... Much sooner in the future, the advance will allow researchers to create motor neuron modeling systems to screen ...erent types of cells and tissues in the body. But researchers have struggled to convert blank-slate embryonic stem cells into motor neurons, says Zhang. The goal ...

Association of herpesvirus with lung disorder questioned

...of Infectious Diseases, now available online. The researchers reported that they were not able to detect human h...patients with primary pulmonary hypertension. The researchers noted that while their results call the earlier study results into question, there are other possibl...

Man and mouse share genome structures

...le study to date of the proteins that package DNA, researchers have mapped a family of switches that turn genes o...ion of genes to be turned on. In their study, the researchers analyzed the chromatin structure of the two shortest human chromosomes, numbers 21 and 22, containin...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

Dana-Farber Cancer Institute researchers have identified a molecular mechanism in the liver...onger adverse effects than do saturated fats. The researchers report that when activated by harmful fats, PGC-1beta alters liver metabolism through a cascade of b...

A new mechanism of regulating RNA degradation

... to fight disease. Most of the gene-control tools researchers have collected thus far involve the first step in gene expression, in which DNA is copied into RNA transcripts. However, recent discoveries have shown that many of the tools cells use to regulate genes work after transcription, by moderating the acti...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

... to fight disease. Most of the gene-control tools researchers have collected thus far involve the first step in gene expression, in which DNA is copied into RNA transcripts. However, recent discoveries have shown that many of the tools cells use to regulate genes work after transcription, by moderating the acti...

Spleen may be source of versatile stem cells

A year ago, Massachusetts General Hospital (MGH) researchers discovered that the spleen might be a source of ad...em cells.In their pursuit of that finding, the MGH researchers investigated thepossible presence of a protein called Hox11 in these cells. In mammals,Hox11 is a co...

Genes In The Interferon System Important In Systemic Lupus Erythematosus

...e been identified bya team of scientists headed by researchers at the Department of MedicalSciences at Uppsala University. The findings are being published todayon the Web page of the highly prestigious American Journal of HumanGenetics. "These findings are probably the first genetic pieces of ahuge 'interferon ...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...urce for ridge flank biota, and an opportunity for researchers to sample the biosphere below the sea floor." The sides of abyssal hills are fault escarpments (or scarps) created by vertical uplift of the seafloor during many events of fault slippage that produce frequent earthquakes. The scarps are cliffs that ...

UAB scientists discover the origin of a mysterious physical force

...This abnormal behaviour was discovered by the same researchers and published in Physical Review Letters in April 2004. The scientists have now discovered that this strange property is responsible for the hydration force that acts when water is surrounded by certain types of electrostatically charged molecules, ...

Researchers discover way to make cells in the eye sensitive to light

...ponsive, or photoreceptive. Usingmouse cells, the researchers found that melanopsin could be used tomake neurone...ells which signal to the brain, remain intact. The researchers believethat by activating the melanopsin, these cells may gain the ability tosense and respond to li...

Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants

UC Riverside researchers from the Departmentsof Chemical and Environmental ...ll size make them idealfor biological imaging. The researchers then added the molecules togerminated lily pollen grains and examined them under a confocalmicroscop...

Protein discovery could unlock the secret to better TB treatment

...versity of London, and John Ward at UCL as well as researchers from INSERM Montpellier. ...

Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer

... cause of certain kinds of UV-induced skin cancer, researchers atErasmus University Medical Center (Rotterdam, Th...id photolyase-mediated repairof these lesions. The researchers found that transgenic mice bearingthe CPD photolyase transgene, in contrast to mice bearing the 6-4P...

W.M. Keck Foundation funds study of friendly microbes

....45 million grant from the W.M. Keck Foundation to researchers at the School of Medicine will help fill this gap ... obtained from genome sequencing projects to allow researchers to better understand the evolution and diversity of life on Earth, as well as help create new method...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...uel, a discovery University of Colorado at Boulder researchers saybodes well for life in extreme environments on ...erature.A combination of three different clues led researchers to conclude thathydrogen was the main source of energy. Genetic analysis of thevarieties of microbes...

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