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Tag: "acting" at biology news

Get a whiff of this: Smell test could sniff out serious health problems

...sense of smell. “So, that’s the reason it might be acting a little bit like the canary in the mineshaft. Because it’s more fragile, when you have insult to the brain, it may be sensitive to loss earlier in the disease process.? Frank adds that because smells don’t have to be identified as part of the Snif...

Revealing the machinery underlying the 'plastic' juvenile brain

...ey wrote that "Thus, multiple molecular mechanisms acting at different levels—extracellularly, on the cell membrane, and intracellularly—might contribute to the developmental downregulation of plasticity occurring in coincidence with the closure of the critical period." ...

Intelligent materials to regenerate bone tissue

...e. To this end, it has to be bioactive, capable of acting on the tissue-generating system and its corresponding genes, as well as respond appropriately to the physiological and biological changes, both internal and external, of that system. Also necessary are size and shape characteristics, as well as...

Newly identified mechanism for silencing genes points to possible anti-cancer strategies

...however, and we suspected that microRNAs were also acting in some other way to inhibit gene translation into protein. By tracking the associations between molecules involved in generating microRNAs and other molecules in the cell, we uncovered an entirely new pathway, one that led us to a mechanism that blo...

Study shows dramatic increase in Caesarean sections

...t they are the result of common unmeasured factors acting throughout the whole community. " The reasons are likely to be multifactorial and reflect a complex social process affected by clinical status, obstetric practice and training, family and social pressures, the legal system, availability of technol...

Baumann Lab defines proteins that distinguish chromosome ends from DNA double-strand breaks

...lomeres. But how repair factors are prevented from acting at chromosome ends has been a hotly debated issue. Over the past decade, several telomeric complexes and structures have been identified and proposed to protect chromosome ends, but conclusive evidence that any of these are required for protection ha...

Scientists identify prion's infectious secret

...er like an origami swan that comes out looking and acting instead like a vulture. But prions have another characteristic that enables them to wreak havoc. They recruit other, properly folded proteins into misforming along with them, a process Lindquist calls a "conformational cascade." In many organisms,...

Mice with a migraine show signs of brain damage

...have found evidence that the headaches may also be acting like tiny transient strokes, leaving parts of the brain starved for oxygen and altering the brain in significant ways. A paper describing the work by neuroscientists at the University of Rochester Medical Center appeared online April 29 in Nature Ne...

Children of smokers have more than 5 times higher levels of a nicotine toxin

...ects of passive smoking on their children and then acting on that knowledge....

New findings challenge established views on human genome

...ay serve as a “warehouse for natural selection” by acting as a source of functional elements unique to each species and of elements that perform the similar functions among species despite having sequences that appear dissimilar. Other highlights of the ENCODE work include: Identification of numerou...

Brain inflammation may be friend, not foe, for Alzheimer's patients

...flammation is playing the role of protector and is acting more like an ambulance crew helping at the site of a road wreck, not causing the crash. The work suggests that doctors not rush in to turn off molecular events that scientists have widely considered to be detrimental in people with the disease. Th...

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