Tag: "altered" at biology news
Unravelling new complexity in the genome
... since we can anticipate a more extensive role for altered
regulation of splicing events that similarly went unnoticed due to the lack of the appropriate technology allowing their detection....
Doernbecher Children's Hospital scientist earns coveted Javits award
... in premature infants. Thismodel has substantially altered
the way leaders in this field believedamage occurs to the developing white matter of the brain. "We previously believed that the developing brain fails to make normalmyelin, because the oligo-cells that make the myelin were completelykilled. Hence,...
Abnormal fat metabolism underlies heart problems in diabetic patients
...e hearts' ability to pump blood, again implicating altered
lipid metabolism, cardiolipin scarcity and mitochondrial impairment in heart disease using lipid as predominant fuel. Gross adds that in addition to the effects on mitochondria, many of the membranes in heart cells, which are built from fatty molecul...
Genetic variation helps to understand predisposition to schizophrenia
...netic sequence linked to schizophrenia resulted in altered
amounts of Neuregulin 1 type 4. For the first ... gene and showed that the activity of that gene is altered
by a single genetic variation in this promoter, Law says. These results will probably help us unders...
In limiting life span, study finds booming bacteria innocent
...that bacterial load would increase or be otherwise altered
as people grow older. Indeed, studies have found shifts in humans intestinal bacteria with age and evidence that bacteria may blossom in the prostate and other organs of the elderly. To explore the consequences of such changes in bacteria with age ...
Macho men are seen as bad choice for long-term love
... over 400 British men and women to judge digitally altered
pictures of male faces made to look more masculine or feminine. The participants were asked to predict personality traits including sexual behaviour and parenting skills based on what they saw. Men with masculine faces, with features such as a s...
..., water degradation, and changes in climate due to altered
water flows from land to atmosphere. As human pop...y areas to undergo climate change, driven by these altered
continental vapor flows. Ellen Marie Douglas (University of Massachusetts) will focus on potential...
Biologists at Tufts University discover 1 reason why chromosomes break, often leading to cancer
... have hypothesized but never proven that slow or altered
replication led to the chromosomes breaking. In a Tufts University study published in the Aug. 3 journal "Molecular Cell," two molecular biologists have used yeast artificial chromosomes to prove the hypothesis. The Tufts researchers have found a h...
Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
...said. By removing insects, the birds indirectly altered
the terpene composition of pine tissues, said Linhart. The alteration of terpene "flavor" can have wide ranging effects, since terpenes influence decisions that creatures like bark beetles, porcupines and squirrels make when deciding which trees to ...
Altering a protein makes mice less fearful
...The study also shows that mice without ASIC1a have altered
neuronal activity in these fear circuit structures...re no known mutations of the ASIC1a gene linked to altered
fearfulness, but the UI study raises the possibility that mutations or variations in the gene might ...
Taming the anthrax threat
...ected mouse cells with a Bacillus anthracis strain altered
to lack the gene, they found the bacteria were significantly less able to cause disease. The next step will be to screen compounds that could potentially block the action of this gene and other genes identified in the study. A new generation of ant...
Handicapping tuberculosis may be the way to a better vaccine
... Jacobs and colleagues have produced a genetically altered
strain of tuberculosis (TB) that elicits a stronge...nd his team used a mouse that had been genetically altered
to have all of its T lymphocytes recognize the same peptide. They altered
the normal and the apoptos...
New study demonstrates important role of glia in circadian timing
...ding the etiology of diseases that are affected by altered
biological timing mechanisms, such as the human sleep-wake cycle....
Reading a face is tricky business
...al emotional expressions, their brain activity was altered
within 200 milliseconds, said Ken Paller, co-investigator of the study and professor of psychology in the Weinberg College of Arts and Sciences at Northwestern. As a result, the ratings of facial expressions they did see were biased. In other word...
Huntington's disease study shows animal models on target
...regions of the brain succumb to the effects of the altered
protein, leading to severe motor, psychiatric, and cognitive decline. Several recent studies have shown that the mutant huntingtin protein modifies the transcriptional activity of genes in affected neurons. This disease mechanism is a promising new a...
New studies on goats' milk show it is more beneficial to health than cows' milk
...cium, phosphorus and magnesium, the restoration of altered
haematological parameters and the better levels of parathyroid hormone (PTH), a hormone that regulates the calcium balance in the organism was found in the rats that consumed this food. Javier Daz Castro points out that the inclusion of goats milk ...
Research teams uncover risk genes for multiple sclerosis
... people and confirmed that immune system genes are altered
in people diagnosed with MS. It also pointed to potential mechanisms of the disease. This study analyzed single nucleotide polymorphisms (SNPs), which are small differences in the DNA sequence that represent the most common genetic variations betw...
First new multiple sclerosis gene found in 30 years
...s. Gregory said that as research builds upon the altered
function of IL-7R the mechanisms involved in the development of multiple sclerosis will be unlocked, which may lead to novel treatments for the disease or the identification of targets for new therapies. The team used a technique known as genomic c...
Risk genes for multiple sclerosis uncovered
...360 people, confirmed that immune system genes are altered
in people diagnosed with MS, and pointed to potential mechanisms of the disease. The researchers gathered 931 sets of DNA samples from MS patients and their parents. They analyzed single nucleotide polymorphisms (SNPs), that is, small differences i...
Presence of wolves allows aspen recovery in Yellowstone
...the presence of a natural predator appears to have altered
the behavior of the remaining elk, which in their fear of wolves tend to avoid browsing in certain areas where they feel most vulnerable. The two factors together have caused a significant reduction in elk browsing on young aspen shoots, allowing the...
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