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Tag: "helped" at biology news

Does natural selection drive the evolution of cancer?

...n, they found that the concepts from another field helped to illuminate cancer biology. Mutant cells compete with each other for needed resources. The immune system often kills tumor cells like a predator hunting prey, and the tumor cells that develop defenses against the predation are the ones that sur...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...t where we really understood it. This research has helped us demystify the threat a bit." Although smallpox has been eliminated as a naturally-occurring disease, the virus still exists in two approved laboratories in the United States and Russia. The Centers for Disease Control and Prevention classifies i...

Altered perception of reward in human cocaine addiction

...addiction, a psychopathology that these tools have helped to identify as a disorder of the brain." Goldstein will present details of these studies at a press conference on neuroscience and addiction at the Society for Neuroscience (SfN) annual meeting in Atlanta, Georgia, on Sunday, October 15, 2006, 2 t...

Public Library of Science to launch new, open access journal on neglected tropical diseases

...eature former U.S. President Jimmy Carter, who has helped to lead the successful global campaign to eradicate Guinea worm disease. PLoS Neglected Tropical Diseases will publish high-quality, rigorously peer-reviewed research on all scientific, medical, and public health aspects of neglected tropical disea...

Human stem cells delay start of Lou Gehrig's disease in rats

...e in the chest responsible for breathing, were not helped by these transplanted stem cells." The research team used so-called SOD-1 rats, animals engineered to carry a mutated human gene for an inherited form of ALS. As in human ALS, the rats experience slow nerve cell death where all the muscles in th...

SARS: No evidence that any of the treatments worked

...virus outside the body ('in vitro') and whether it helped the condition of patients and reduced the death rate, especially in those patients who developed a dangerous complication called acute respiratory distress syndrome. Researchers conducted a comprehensive search for information from research studies...

First biomarker for human sleepiness identified in fruit flies

...eep debt, their amylase levels increased. "This helped prove that the increases in amylase activity level we were seeing weren't just triggered by wakefulness," Shaw says. Humans kept awake for 28 hours also had increased amylase levels versus controls allowed to sleep normally. Shaw's lab previous...

Controlling antibiotics and antibiotic resistance in hospitals

...stance, while simply limiting broad spectrum drugs helped prevent resistance. "We think this may be because wrong decisions are made about which antibiotics are made available. Other studies have shown evidence that restricting formularies to previously effective antibiotics can actually help control ant...

Train your brain to hear your friends at a party

...ment cope with difficult situations. They could be helped by computer generated training programs which run like regular computer games, but can target weaknesses in listening skills. By incorporating training exercises much like those performed by the ferrets, they can lead to auditory learning and an impr...

The power of one: A simpler, cheaper method for cell fusion

...s of different disease-specific antibodies and has helped scientists clone mammals. The current technique for electrofusion requires a pricey electrical pulse-generator, which could cost as much as $13,000. Lu's technology, on the other hand, uses a $100 DC power supply, which, unlike the specialized gen...

HIV-1 kills immune cells in the gut that may never bounce back

...g patients HAART during the early infection period helped restore these cells to the GI lining the way it restored them to the blood itself. In a paper published today in PLoS Medicine, Markowitz, Rockefeller researcher and clinical scholar Saurabh Mehandru, and their colleagues report on a trial of 40 H...

Pooled data examines if SNPs add to breast cancer risk

Pooling data from numerous studies has helped scientists examine specific genetic variants related to breast cancer incidence, according to a study in the October 4 issue of the Journal of the National Cancer Institute. The Breast Cancer Association Consortium brought together data from mor...

Peering into the shadow world of RNA

...ransposons to copy themselves to new locations has helped them to dramatically expand their representation in the mammalian genome. “Transposons occupy as much as half of our entire genome, and they can be dangerous,?Nishikura says. “As a result, mechanisms have arisen through evolution to suppress their...

Genome info from 'plant destroyers' could save trees, beans and chocolate

...ctor for molecular and cellular biosciences, which helped fund the work. "These new genome sequences will contribute to our basic understanding of normal plant-microbe relationships as well as their roles in disease," she said. ...

With fruit fly sex, researchers find mind-body connection

...s of human behavior. For example, McKeown recently helped discover a genetic mutation that causes flies to d... did, indeed, see a doublesex influence. Doublesex helped the males act macho during courting ?chasing females, shaking their wings to "sing" love songs, tapp...

Clues to gene expression in cystic fibrosis will guide research

...amicin reversed stop codons in the Y122X gene, and helped restore the CFTR protein, improving patients?respiration. Gentamicin itself may not be an ideal drug option, as it may cause serious side effects for some patients, including ear and kidney damage. The authors suggest that other drugs, such as ami...

New test helps identify hepatitis C patients at high risk of developing cirrhosis

...at the Stanford University School of Medicine has helped confirm the reliability of a new test for liver d... The Stanford group was one of the five sites that helped determine that the genetic test can identify patients who are at high risk of developing cirrhosis...

Many couples choose to donate surplus embryos for stem cell research

...ocess with a legal advisor and embryologist, which helped couples navigate the confusing legal situation and address any concerns they might have had about donation for research purposes. While the findings reflect the interest level among couples in Spain—where the stem cell research environment is fairly ...

New measure of sexual arousal found for both men and women

...n, and may help identify those patients who may be helped by vasoactive drugs similar to those prescribed for men with erectile dysfunction from narrowed blood vessels." ...

Microfluidic chip helps solve cellular mating puzzle

...PK, thought to be relatively unimportant, actually helped the yeast cells do a better job of finding a mate through two distinct functions. First, it helped cells diversify their responses at low pheromone concentrations, so that only a small fraction of ce...

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