PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Ongoing policy uncertainty is detrimental for stem cell scientists

2011-02-04
(Press-News.org) While there is no doubt that the ethical controversy surrounding human embryonic stem cell (hESC) research has given rise to an uncertain policy environment, the true impact of years of frequent policy changes has not been fully assessed. Now, an article published by Cell Press on February 3rd in the journal Cell Stem Cell reports on a recent survey of several hundred stem cell scientists in the United States and begins to reveal the substantial negative impact that this uncertainty has had on them, including both those who work directly with hESCs and those who work with less contentious types of stem cells.

"In the United States, scientists have faced several hESC policy changes with changing administrations," says author Dr. Aaron D. Levine from the School of Public Policy and Institute of Bioengineering and Bioscience at the Georgia Institute of Technology. "Most recently, a legal challenge to the Obama Administration's new stem cell policy led the federal government to briefly stop funding hESC research and to ongoing questions about the future of federal funding for this field."

To better understand the impact of this ongoing policy uncertainty, Dr. Levine conducted a survey of stem cell scientists in November 2010 which assessed how the temporary funding ban and uncertainty about the future of federal funding for hESC research was impacting their work. Scientists reported a range of negative impacts associated with both the temporary funding ban and the ongoing policy uncertainty, but were more likely to indicate that the continued policy uncertainty had a substantial impact on their research plans. Scientists reported changes to the type or quality of science that they engaged in and delays in plans to begin new ESC projects and hire new staff, as well as hindered collaborations.

"It is interesting to note that much of the legal wrangling to date has focused on identifying which scientists are harmed by policy changes," explains Dr. Levine. "However, the results reported here conflict with judge's assertion that his ruling on the legal challenge would have little impact on hESC scientists and suggest that this injunction substantially changed the playing field for many hESC scientists in the United States as well as a lesser number of scientists working with other cell types." The author recommends that lawmakers who aim to support stem cell research should strive for policies that reduce uncertainty for stem cell scientists and provide a clear legal basis for federal funding of hESC research.

### To download a copy of this report go to: http://www.eurekalert.org/jrnls/cell/pages/cellstemcell.php


ELSE PRESS RELEASES FROM THIS DATE:

Destined for disease: Breast cancer mutation regulates cell fate

2011-02-04
A new study sheds light on why individuals who inherit a particular family of mutations have a high risk of developing a very aggressive form of breast cancer. The research, published by Cell Press on February 4th in the journal Cell Stem Cell, shows that breast tissue cells from these individuals make abnormal cell-fate decisions even before cancer develops and provides exciting new insights into the mechanisms behind one of the most lethal types of breast cancer. There are many forms of human breast cancer. Mutations in the BRCA1 tumor suppressor gene are associated ...

Northern Mars landscape actively changing

Northern Mars landscape actively changing
2011-02-04
Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, as revealed by images from a high-resolution camera aboard NASA's Mars Reconnaissance Orbiter, or MRO. These dune fields cover an area the size of Texas in a band around the planet at the edge of Mars' north polar cap. Although the new findings suggest they are among the most active landscapes on Mars, few changes in these dark-toned dunes had been detected before a campaign of repeated imaging by the High Resolution Imaging Science Experiment ...

Plant's immune defense revs up for the morning attack

2011-02-04
DURHAM, N.C. – Timing is everything in the long-standing arms race between the flowering plant Arabidopsis and Hyaloperonospora, a downy mildew pathogen. Duke University researchers have found that the little mustard plant cranks up its immune system in the morning to prepare for the greatest onslaught of infectious spores released by the mildew. It isn't news that plants know what time of day it is and change their activities accordingly, but this is the first time that a plant's defensive systems have been shown to cycle on a daily basis – even when pathogens aren't ...

Animal with the most genes? A tiny crustacean

Animal with the most genes? A tiny crustacean
2011-02-04
BLOOMINGTON, Ind. -- Complexity ever in the eye of its beholders, the animal with the most genes -- about 31,000 -- is the near-microscopic freshwater crustacean Daphnia pulex, or water flea. By comparison, humans have about 23,000 genes. Daphnia is the first crustacean to have its genome sequenced. The findings are part of a comprehensive report in this week's Science by members of the Daphnia Genomics Consortium, an international network of scientists led by the Center for Genomics and Bioinformatics (CGB) at Indiana University Bloomington and the U.S. Department of ...

Quantum quirk: JILA scientists pack atoms together to prevent collisions in atomic clock

Quantum quirk: JILA scientists pack atoms together to prevent collisions in atomic clock
2011-02-04
BOULDER, Colo.—In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms closer together. The surprising discovery, described in the Feb. 3 issue of Science Express,* can boost the performance of experimental atomic clocks made of thousands or tens of thousands of neutral atoms trapped by intersecting laser beams. JILA is jointly operated by the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder. JILA scientists demonstrated the new approach using ...

Yale scientists identify a deadly tool in Salmonella's bag of tricks

Yale scientists identify a deadly tool in Salmonellas bag of tricks
2011-02-04
The potentially deadly bacterium Salmonella possesses a molecular machine that marshals the proteins it needs to hijack cellular mechanisms and infect millions worldwide. In a paper published Feb. 3 online in Science Express, Yale University researchers describe in detail how Salmonella, a major cause of food poisoning and typhoid fever, is able to make these proteins line in up in just the right sequence to invade host cells. "These mechanisms present us with novel targets that might form the basis for the development of an entirely new class of anti-microbials," ...

Obesity has doubled since 1980, major global analysis of risk factors reveals

2011-02-04
The study shows that in 2008, more than one in ten of the world's adult population was obese, with women more likely to be obese than men. An estimated 205 million men and 297 million adult women were obese - a total of more than half a billion adults worldwide. The proportion of the world's population with high blood pressure, or uncontrolled hypertension, fell modestly between 1980 and 2008. However, because of population growth and ageing, the number of people with uncontrolled hypertension rose from 600 million in 1980 to nearly 1 billion in 2008. High-income countries ...

2nd member in Alzheimer's toxic duo identified

2011-02-04
SAN ANTONIO, Texas, U.S.A. (Feb. 4, 2011) — Like two unruly boys who need to be split up in class, a pair of protein molecules work together to speed up the toxic events of Alzheimer's disease. Researchers at the UT Health Science Center San Antonio today announced the discovery of the second molecule and said its identification could lead to drugs that disrupt the interaction, and thereby block or slow Alzheimer's onset or progression. Alzheimer's disease is an irreversible, progressive brain disease marked by deterioration of nerve cells and eventual complete loss of ...

New nanomaterials unlock new electronic and energy technologies

2011-02-04
A new way of splitting layered materials to give atom thin "nanosheets" has been discovered. This has led to a range of novel two-dimensional nanomaterials with chemical and electronic properties that have the potential to enable new electronic and energy storage technologies. The collaborative* international research led by the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Ireland, and the University of Oxford has been published in this week's Science. The scientists have invented a versatile method for creating these ...

Scientists unlock 1 mystery of tissue regeneration

2011-02-04
The human body has a remarkable ability to heal itself. Due to the presence of dedicated stem cells, many organs can undergo continuous renewal. When an organ becomes damaged, stem cells in the organ are typically activated, producing new cells to regenerate the tissue. This activity of stem cells, however, has to be carefully controlled, as too much stem cell activity can cause diseases like cancer. Current research in stem cell biology is starting to unravel the control mechanisms that maintain a balance between efficient regeneration and proper control of stem cell function. ...

LAST 30 PRESS RELEASES:

Scientists unlock secrets behind flowering of the king of fruits

Texas A&M researchers illuminate the mysteries of icy ocean worlds

Prosthetic material could help reduce infections from intravenous catheters

Can the heart heal itself? New study says it can

Microscopic discovery in cancer cells could have a big impact

Rice researchers take ‘significant leap forward’ with quantum simulation of molecular electron transfer

Breakthrough new material brings affordable, sustainable future within grasp

How everyday activities inside your home can generate energy

Inequality weakens local governance and public satisfaction, study finds

Uncovering key molecular factors behind malaria’s deadliest strain

UC Davis researchers help decode the cause of aggressive breast cancer in women of color

Researchers discovered replication hubs for human norovirus

SNU researchers develop the world’s most sensitive flexible strain sensor

Tiny, wireless antennas use light to monitor cellular communication

Neutrality has played a pivotal, but under-examined, role in international relations, new research shows

Study reveals right whales live 130 years — or more

Researchers reveal how human eyelashes promote water drainage

Pollinators most vulnerable to rising global temperatures are flies, study shows

DFG to fund eight new research units

Modern AI systems have achieved Turing's vision, but not exactly how he hoped

Quantum walk computing unlocks new potential in quantum science and technology

Construction materials and household items are a part of a long-term carbon sink called the “technosphere”

First demonstration of quantum teleportation over busy Internet cables

Disparities and gaps in breast cancer screening for women ages 40 to 49

US tobacco 21 policies and potential mortality reductions by state

AI-driven approach reveals hidden hazards of chemical mixtures in rivers

Older age linked to increased complications after breast reconstruction

ESA and NASA satellites deliver first joint picture of Greenland Ice Sheet melting

Early detection model for pancreatic necrosis improves patient outcomes

Poor vascular health accelerates brain ageing

[Press-News.org] Ongoing policy uncertainty is detrimental for stem cell scientists