Tag: "whether" at biology news

Deficient DNA Repair Capacity Associated With Increased Risk Of Breast Cancer

...c changes involved in carcinogenesis. To evaluate whether reduced DNA repair capacity in the nucleotide exci...s," the authors write. "It is unclear at this time whether there are any interventions that could alter DNA repair capacity and what effect such interventions ...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

... the current experiments were designed to find out whether the loss of imprinting is involved in cancer's dev...epigenetic differences to influence progression -- whether a tumor would grow slowly or quickly, or whether it would spread," says Feinberg. "But, in this case...

Topical treatment shown to inhibit HIV and herpes simplex virus infection

... are currently conducting a 14-day study to assess whether or not there is an inflammatory response after repeated applications." ...

Priming embryonic stem cells to fulfill their promise

...en we talked to our colleagues, it was clear that, whether it'scells in the liver, brain, or heart, there had been no practical wayfor researchers to find the optimal extracellular matrix needed to turnembryonic stem cells into cells with therapeutic potential," saidBhatia. "We think we've developed an enabl...

Growth in the sea comes down to a struggle for iron

...se oceanographic understanding needed to determine whether or not adding iron to ocean waters is a wise tool in any attempts to manage a changing climate. ...

Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs

... blinded, which means that volunteers will notknow whether they are receiving the study drug or the placebo.T...heralvascular disease. Another goal is to find out whether or not increasingthe number of circulating EPCs results in improved blood flow to theleg, improved b...

Neuronal 'traffic jam' marks early Alzheimer's disease

... swelling in the neurons." The researchers tested whether they could enhance the pathology they observed in ...to then test for transport defects, and then study whether those defects produce pathology similar to that seen in Alzheimer's. One of the questions they will ...

Elusive HIV shape change revealed; Key clue to how virus infects cells

... the bound and unbound forms and try to understand whether there are any immunologic properties that differ and that might provide a route to new vaccine or drug strategies," Harrison says. ...

Mouse brain cells rapidly recover after Alzheimer's plaques are cleared

...re least likely to heal. Brendzaplans to look into whether additional treatment can prompt theirrecovery.Holtzman and Brendza plan to continue using the mouse model to studydisease treatments and the cellular abnormalities caused by theirAlzheimer's-like condition."For example, we'd like to know what's going...

Key molecule in plant photo-protection identified

...re least likely to heal. Brendzaplans to look into whether additional treatment can prompt theirrecovery.Holtzman and Brendza plan to continue using the mouse model to studydisease treatments and the cellular abnormalities caused by theirAlzheimer's-like condition."For example, we'd like to know what's going...

Timing is everything: First step in protein building revealed

...thor ofthe paper."It's impossible to know for sure whether eIF1 is released completelyin living creatures, but in our laboratory experiments that is clearlythe case," adds Lorsch. "Even if it isn't released completely in intactcells, our results would indicate that it must be very looselyassociated for trans...

Plants, animals share molecular growth mechanisms

...We'd like to know if this section is important and whether it regulates DIS3 or the whole WAVE complex." For growth and development biochemical processes to proceed normally, activators such as ARP 2/3 are needed to trigger actin filaments' formation and growth, Szymanski said. However, scientists don't kno...

Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine

...ified genetic and protein markers that can predict whether a CLL patient will follow the benign or aggressive course. Some markers are not yet available for clinical use, however according to the review, measurement of one protein marker called ZAP-70 is becoming more widely available. The authors note that ...

Inflammatory molecules released by pollen trigger allergies

...njury or infection. The authors now plan to assess whether cells from allergy-prone people are more sensitive to the effects of the pollen-derived compound than those from non-allergic individuals. A better understanding of these molecules and how they work may eventually lead to new approaches to treating a...

Imaging Lymph Nodes with Nanoparticles

... And an essential part of this workup is assessing whether or not there has been lymphatic spread. Currentmethods include surgical removal of nodes for examination and varioustypes of imaging, ranging from ultrasound to newer technologies such asmagnetic resonance imaging (MRI). All these methods have proble...

“Nano-scissors?laser shows precise surgical capability

...nts on genetic andmolecular factors that determine whether damaged nerve cells regrow.Ben-Yakar developed the femtosecond laser surgery technique using thelaboratories and equipment of Dr. Robert Byer, a Stanford Universityprofessor, while doing post-doctoral work. The paper’s other co-authorsare Mehmet Fati...

U-M scientist to talk about tissue engineering at AAAS

...damage of radiation. "It's not just a question of whether we can make new tissue in a perfect condition. Now we're mimicking what can really happen in a person, and we don't know if the rules of regeneration might be totally different," said Paul Krebsbach, associate professor at the U-M School of Dentistry...

Novel Enzyme Shows Potential As An Anti-HIV Target

...anti-HIV therapy. Future study will have to verify whether inhibiting SIRT1 can successfully put the brakes on HIV transcription and control the virus (See also “A New Paradigm in Eukaryotic Biology: HIV Tat and the Control of Transcriptional Elongation?/a>. ...

Mitochondrial DNA mutations play significant role in prostate cancer

...ral populationsample of 898 Europeans.To determine whether mtDNA mutations are causally related to prostatecancer, the researchers introduced into a prostate cancer cell linemtDNAs harboring a known disease-causing mtDNA mutation and, as acontrol, the same mtDNA but without the disease mutation. They theninj...

Researchers reveal the infectious impact of salmon farms on wild salmon

...n British Columbia and the Pacific Northwest as to whether salmon farms are contributing to sea lice infections of wild salmon at all. "Parasites are a key negative side effect of fish farms on the local fish stocks," says Andrew Dobson, an epidemiologist from Princeton University who researches infectious ...

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