issues 2 5

Tag: "issues" at biology news

Researchers discover new form of cancer gene regulation

...lts of the study open a new research direction for issues ranging from cancer formation to environmental interactions in development and will point the way to similar mechanisms of control in other genes," said Philip M. Iannaccone, M.D., who led the study. Iannaccone is George M. Eisenberg Professor of Pe...

UK sperm donor crisis

...udy, particularly in the early days when fertility issues were less well known to the public. The unit is also reviewing its high cut-off rate for semen quality. However, to achieve good freeze-thaw sperm quality and, hence, good success rates, the starting sample needs to be substantially better than the...

From one cell, many possible cures

...lege of Engineering. "By addressing one of the key issues constraining this research -- a limited supply of stem cells -- he could help advance the development of numerous medical therapies by years," Locke said. According to the Tulane Center for Gene Therapy's Web site, "stem cells are so named because t...

Report focuses on challenges to unlocking future promise of vaccines

... new and better vaccines, vaccine safety, research issues surrounding vaccines, education, and training topics. Experts in vaccine research and development from academia, industry, and government deliberated and determined several recommendations for future progress in creating and applying vaccines. ...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...nk our approach has a lot of potential to overcome issues that have slowed the field of gene therapy," Calos said. Calos said her approach has two advantages: one is that in her method the gene gets inserted directly into the cell's own DNA, which is why the correction is permanent. In some other methods t...

Researchers offer proof-of-concept for Altered Nuclear Transfer

...hat this modification may help resolve some of the issues surrounding work with embryonic stem cells and allow federal funding. ...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

...s out of the troposphere. There are many important issues to deal with, such as cloud cover and the highly variable reflectivity of the surface, as well as having the absorption or emission of stratospheric and upper atmospheric species situated between the troposphere and the instrument. "First with GOME...

Living anti-HIV gel shows early promise

...ise the reproductive and intestinal tracts. Other issues that will need to be addressed include the safety of introducing live, genetically modified microbes into human bodies. Rao's team used a strain of bacterium that is already used in the United States as a live treatment for bowel disorders such as Cr...

PLoS Medicine publishes first trial of effect of male circumcision on HIV infection

...edicine alongside the trial discuss some of these issues further: In an editorial, the PLoS Medi...ttee that approved the trial, looks at the ethical issues surrounding the trial. Nandi Siegfried, lead author of a recent Cochrane systematic review ...

Biotechnology's newest chemical tool

...s are addressing all necessary medical and ethical issues for implantation in human volunteers. A clinical partner has been identified and the Local Ethical Committee has given the approval for the clinical validation of CYBERHAND system, which should begin in 2006. Some companies have expressed interest i...

Master regulatory gene found that guides fate of blood-producing stem cells

...ntrols stem-cell fate is one of the most important issues in stem-cell biology," says senior author Stephen G. Emerson, MD, PhD, Associate Director of Clinical Research for Penn's Abramson Cancer Center and Chief of the Division of Hematology-Oncology. When HSCs divide, they have one of three fates: develop...

Researchers find Amchitka seafood safe for now

...decade has independently studied and reviewed risk issues associated with the cleanup and long-term stewards...ning how we thought through all of the complicated issues posed by the data since the public deserves to have the same peace of mind that we have about what w...

The right drug at the right time

...loratory work more than a year ago on the scale-up issues of quantum dot manufacture, but the solvents turned out to be so expensive that we just couldn't afford to run more than a few large-reactor experiments," said the study's lead author, Michael Wong, assistant professor of chemical and biomolecular en...

Method slashes quantum dot costs by 80 percent

...loratory work more than a year ago on the scale-up issues of quantum dot manufacture, but the solvents turned out to be so expensive that we just couldn't afford to run more than a few large-reactor experiments," said the study's lead author, Michael Wong, assistant professor of chemical and biomolecular en...

'License to kill' enables powerful immune attack cells in mice

...ications for doctors struggling to understand such issues as persistent viral infections and patients' responses to bone marrow transplants. The findings will appear in the August 4 issue of Nature. The immune cells in question already evoked cinematic connections simply by virtue of one of their names: sc...

Birds and bats sow tropical seeds

...ograms like UIC's. "It will involve environmental issues which will occupy a great many students," he said. "These students will disperse through Mexico and the rest of Latin America. We hope they will carry the banner of experimental restoration of diversity into landscapes, wherever they go." ...

Controlling wildlife trade key to preventing health crises, study says

...eats to global health--including poverty, security issues or climate change--are as immediately manageable as the global trade in wildlife," said Dr. William Karesh, lead author on the study and head of WCS' Field Veterinary Program. "By focusing our prevention efforts on wildlife markets to regulate, and w...

Learning how SARS spikes its quarry

...spike-receptor interaction. "One of the critical issues in a SARS epidemic would be to predict whether a given variant of the virus will jump species or move laterally from one human to the other. Understanding the structure of this complex will help us understand what these mutations in the spike protein...

Researchers develop gene therapy to reverse pulmonary arterial hypertension

...he journal stated: "These findings raise important issues regarding the role of survivin in the pathogenesis of PAH, its value as a prognostic indicator, and its use as a target for new therapeutic strategies." Other authors include: Sean McMurtry, Pulmonary Hypertension Program; Stephen Archer, Canada Res...

‘Blue Brain?project explores thought at molecular level

...ientific collaboration, which puts its emphasis on issues of wider importance. The endeavour will be incorporated into the next stage of the pig genome project in which a draft sequence map of 6 fold genome coverage will be produced. This effort will be coordinated by the international Swine Genome Sequenci...

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