A new quality control pathway in the cell
2014-09-18
Proteins are important building blocks in our cells and each cell contains millions of different protein molecules. They are involved in everything from structural to regulatory aspects in the cell. Proteins are constructed as linear molecules but they only become functional once they are folded into specific three-dimensional structures. Several factors, like mutations, stress and age, can interfere with this folding process and induce protein misfolding. Accumulated misfolded proteins are toxic and to prevent this, cells have developed quality control systems just like ...
Small, fast, and crowded: Mammal traits amplify tick-borne illness
2014-09-18
(Millbrook, N.Y.) In the U.S., some 300,000 people are diagnosed with Lyme disease annually. Thousands also suffer from babesiosis and anaplasmosis, tick-borne ailments that can occur alone or as co-infections with Lyme disease. According to a new paper published in PLOS ONE, when small, fast-living mammals abound, so too does our risk of getting sick.
In eastern and central North America, blacklegged ticks are the primary vectors for Lyme disease, babesiosis, and anaplasmosis. The pathogens that cause these illnesses are widespread in nature; ticks acquire them when ...
Curcumin, special peptides boost cancer-blocking PIAS3 to neutralize STAT3 in mesothelioma
2014-09-18
A common Asian spice and cancer-hampering molecules show promise in slowing the progression of mesothelioma, a cancer of the lung's lining often linked to asbestos. Scientists from Case Western Reserve University and the Georg-Speyer-Haus in Frankfurt, Germany, demonstrate that application of curcumin, a derivative of the spice turmeric, and cancer-inhibiting peptides increase levels of a protein inhibitor known to combat the progression of this cancer. Their findings appeared in the Aug. 14 online edition Clinical Cancer Research; the print version of the article will ...
A new way to prevent the spread of devastating diseases
2014-09-18
For decades, researchers have tried to develop broadly effective vaccines to prevent the spread of illnesses such as HIV, malaria, and tuberculosis. While limited progress has been made along these lines, there are still no licensed vaccinations available that can protect most people from these devastating diseases.
So what are immunologists to do when vaccines just aren't working?
At Caltech, Nobel Laureate David Baltimore and his colleagues have approached the problem in a different way. Whereas vaccines introduce substances such as antigens into the body hoping ...
LSU Health research discovers means to free immune system to destroy cancer
2014-09-18
New Orleans, LA – Research led by Paulo Rodriguez, PhD, an assistant research professor of Microbiology, Immunology & Parasitology at LSU Health New Orleans' Stanley S. Scott Cancer Center, has identified the crucial role an inflammatory protein known as Chop plays in the body's ability to fight cancer. Results demonstrate, for the first time, that Chop regulates the activity and accumulation of cells that suppress the body's immune response against tumors. The LSU Health New Orleans research team showed that when they removed Chop, the T-cells of the immune system mounted ...
NASA sees western edge of Tropical Storm Fung-Wong affecting Philippines
2014-09-18
The NASA-NOAA Suomi NPP satellite saw the western edge of Tropical Storm Fung-Wong over the central Philippines on Sept. 18. Fung-Wong developed on Sept. 17 as Tropical Depression 16W, and strengthened into a tropical storm by 5 p.m. EDT on Sept. 17.
When NASA-NOAA's Suomi NPP satellite passed over Tropical Storm Fung-Wong on Sept. 18 at 05:24 UTC and the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard captured a visible picture of the storm. The VIIRS instrument revealed that a thick band of powerful thunderstorms spiraled around the southwestern ...
Study provides insight about providing private mental health service to veterans
2014-09-18
A unique partnership to support private efforts to provide mental health services to veterans and their families could provide a model for similar efforts should federal officials decide to expand privately provided health care as part of reform of the VA health system, according to a new RAND Corporation report.
The Welcome Back Veterans Initiative, a joint project of philanthropic groups and major academic medical centers, has provided an array of patient care, education and other services to veterans and their families.
Backed by Major League Baseball and the Robert ...
Benefits of telecommuting greater for some workers, study finds
2014-09-18
CHAMPAIGN, Ill. — Even in a hyperconnected world where laptops, phones, tablets and now even wristwatches are tethered to the Internet 24/7, employers are still wary about the performance and social costs imposed by employees who work remotely.
But a new study by a University of Illinois business professor says telecommuting yields positive effects for two important measures of employee performance, and it can even produce very strong positive effects under certain circumstances for some employees.
According to Ravi S. Gajendran, a professor of business administration ...
Down syndrome helps researchers understand Alzheimer's disease
2014-09-18
MADISON, Wis. – The link between a protein typically associated with Alzheimer's disease and its impact on memory and cognition may not be as clear as once thought, according to a new study from the University of Wisconsin-Madison's Waisman Center. The findings are revealing more information about the earliest stages of the neurodegenerative disease.
The researchers — including lead study author Sigan Hartley, UW-Madison assistant professor of human development and family studies, and Brad Christian, UW-Madison associate professor of medical physics and psychiatry and ...
Research yields a game changer for improving understanding of Ebola and great apes
2014-09-18
A group of international scientists have developed a new method to study Ebola virus in wildlife. Video link here.
The Wildlife Conservation Society (WCS)-led research, published today in the journal PLOS Neglected Tropical Diseases, describes the use of fecal samples from wild great apes to identify populations likely to have been exposed to the virus. This represents a new tool for performing large, population-scale field assessments that can potentially change the way Ebola virus is studied and improve our understanding of the virus' distribution in space and time—a ...
Single dose of antidepressant changes the brain
2014-09-18
A single dose of antidepressant is enough to produce dramatic changes in the functional architecture of the human brain. Brain scans taken of people before and after an acute dose of a commonly prescribed SSRI (serotonin reuptake inhibitor) reveal changes in connectivity within three hours, say researchers who report their observations in the Cell Press journal Current Biology on September 18.
"We were not expecting the SSRI to have such a prominent effect on such a short timescale or for the resulting signal to encompass the entire brain," says Julia Sacher of the Max ...
Gambling with confidence: Are you sure about that?
2014-09-18
Cold Spring Harbor, NY – Life is a series of decisions, ranging from the mundane to the monumental. And each decision is a gamble, carrying with it the chance to second-guess. Did I make the right turn at that light? Did I choose the right college? Was this the right job for me?
Our desire to persist along a chosen path is almost entirely determined by our confidence in the decision: when you are confident that your choice is correct, you are willing to stick it out for a lot longer.
Confidence determines much of our path through life, but what is it? Most people ...
Stem cells use 'first aid kits' to repair damage
2014-09-18
Stem cells hold great promise as a means of repairing cells in conditions such as multiple sclerosis, stroke or injuries of the spinal cord because they have the ability to develop into almost any cell type. Now, new research shows that stem cell therapy can also work through a mechanism other than cell replacement.
In a study published today in Molecular Cell, a team of researchers led by the University of Cambridge has shown that stem cells "communicate" with cells by transferring molecules via fluid filled bags called vesicles, helping other cells to modify the damaging ...
NYU Langone scientists report reliable and highly efficient method for making stem cells
2014-09-18
NEW YORK, September 18, 2014 – Scientists at NYU Langone Medical Center have found a way to boost dramatically the efficiency of the process for turning adult cells into so-called pluripotent stem cells by combining three well-known compounds, including vitamin C. Using the new technique in mice, the researchers increased the number of stem cells obtained from adult skin cells by more than 20-fold compared with the standard method. They say their technique is efficient and reliable, and thus should generally accelerate research aimed at using stem cells to generate virtually ...
The war on leukemia: How the battle for cell production could be decisive
2014-09-18
A key step in understanding the nature of the fight for superiority between mutated genes and normal genes could lead to new therapies to combat leukaemia, say researchers from the University of Birmingham and Newcastle University.
The study, published in Cell Reports, investigated Acute Myeloid Leukaemia to understand why leukemic cells are not able to develop normally into mature blood cells.
Stem cells in the bone marrow generate billions of different blood cells each day. The process resembles a production line with genes acting as regulators to control each step ...
NASA sees Hurricane Edouard enter cooler waters
2014-09-18
VIDEO:
On Sept. 17 at 03:39 UTC, the TRMM satellite saw a newer outer eyewall forming around Edouard's original eyewall creating a double eye-wall structure. Red indicates heavy rainfall....
Click here for more information.
NASA's Tropical Rainfall Measuring Mission or TRMM satellite and Aqua satellite gathered data on Hurricane Edouard's rainfall, clouds and waning power is it continued moving northward in the Atlantic into cooler waters. On Sept. 18, NASA's Global Hawk #872 ...
Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link
2014-09-18
Our genetic information is stored in DNA, tiny strands of nucleic acid that contain instructions for the functioning of our bodies. To express this genetic data, our DNA is copied into RNA molecules, which then translate the instructions into proteins that perform tasks in our cells.
Several years ago, scientists discovered a new type of RNA molecule. Unlike all other known RNAs, this molecule is circular, and was labeled circular RNA. Although circRNA molecules are abundant, little has been known about how they are produced. Moreover, little has been known about the ...
Flu vaccine for expectant moms a top priority
2014-09-18
WHITE PLAINS, NY, SEPT. 18, 2014 -- Only about half of all pregnant women in the U.S. get a flu shot each season, leaving thousands of moms-to-be and their babies at increased risk of serious illness.
"Getting a flu shot should be a routine part of prenatal care," said Edward McCabe, MD, March of Dimes chief medical officer. "Health care providers should offer their pregnant patients a flu shot each year and if they don't, then women should ask for it."
A report by the U.S. Centers for Disease Control and prevention presented today by the National Foundation for ...
New high-resolution satellite image analysis: 5 of 6 Syrian World Heritage sites 'exhibit significant damage'
2014-09-18
SEPTEMBER 18 —In war-torn Syria, five of six World Heritage sites now "exhibit significant damage" and some structures have been "reduced to rubble," according to new high-resolution satellite image analysis by the nonprofit, nonpartisan American Association for the Advancement of Science (AAAS).
The AAAS analysis, offering the first comprehensive look at the extent of damage to Syria's priceless cultural heritage sites, was completed in partnership with the University of Pennsylvania Museum of Archaeology and Anthropology's Penn Cultural Heritage Center (PennCHC) and ...
NASA marks Polo for a hurricane
2014-09-18
Hurricane Polo still appears rounded in imagery from NOAA's GOES-West satellite, but forecasters at the National Hurricane Center expect that to change.
NOAA's GOES-West satellite captured data on Hurricane Polo on Sept. 18 at 10:15 a.m. EDT. An image using that data was created by the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The image showed thunderstorms wrapping tightly around the center of the storm while one broken band of thunderstorms extended to the northwest, while the other appeared on the eastern side of the center ...
New Dartmouth smartphone app reveals users' mental health, performance, behavior
2014-09-18
Dartmouth researchers and their colleagues have built the first smartphone app that automatically reveals students' mental health, academic performance and behavioral trends. In other words, your smartphone knows your state of mind -- even if you don't -- and how that affects you.
The StudentLife app, which compares students' happiness, stress, depression and loneliness to their academic performance, also may be used in the general population – for example, to monitor mental health, trigger intervention and improve productivity in workplace employees.
"The StudentLife ...
Fall foliage season may be later, but longer on warmer Earth
2014-09-18
The fall foliage season that prompts millions of Americans to undertake jaunts into the countryside each year could come much later and possibly last a little longer within a century, according to new research.
Climate change could postpone fall leaf peeping in some areas of the United States as summer temperatures linger later into the year, Princeton University researchers report in the journal Global Ecology and Biogeography. For instance, the paper birch — a popular foliage tree that is the state tree of New Hampshire — could change color one to three weeks later ...
Want to link genes to complex traits? Start with more diversity
2014-09-18
Life is rarely simple. From crop yields to disease risks, the biological characteristics people care most about are usually those considered "complex traits." Just as for height—the textbook example of a complex trait—attributes like risk for a particular human disease are shaped by multiple genetic and environmental influences, making it challenging to find the genes involved. To track down such genes, geneticists typically mate two individuals that differ in key ways—for example, a large mouse and a small mouse—and then study their descendents, looking for genes that ...
Americans rate losing eyesight as having greatest impact on their lives
2014-09-18
ALEXANDRIA, Va.—Sept. 18, 2014—Many Americans across racial and ethnic groups describe losing eyesight as potentially having the greatest impact on their day-to-day life, more so than other conditions including: loss of limb, memory, hearing and speech (57% of African-Americans, 49% of non-Hispanic whites, 43% of Asians and 38% of Hispanics). When asked which disease or ailment is the worst that could happen to them, blindness ranked first among African-Americans followed by AIDS/HIV. Hispanics and Asians ranked cancer first and blindness second, while Alzheimer's disease ...
Living in a disadvantaged neighborhood worsens musculoskeletal pain outcomes after trauma
2014-09-18
CHAPEL HILL, N.C. – Individuals living in disadvantaged neighborhoods have worse musculoskeletal pain outcomes over time after stressful events such as motor vehicle collision than individuals from higher socioeconomic status neighborhoods, even after accounting for individual characteristics such as age, sex, income, education, and employment status.
These were the findings of a multi-site research study led by Samuel McLean, MD, MPH, associate professor of anesthesiology and emergency medicine at the University of North Carolina School of Medicine. The results of the ...
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