Study identifies mechanism linking stress to physical illness aging: related news

Study identifies mechanism linking stress to physical illness, aging

Every cell contains a tiny clock called a telomere, which shortens each time the cell divides. Short telomeres are linked to a range of human diseases, including HIV, osteoporosis, heart disease and aging. Previous studies have shown that an enzyme within the cell, called telomerase, keeps immune cells young by preserving their telomere length and ability to continue dividing. UCLA scientists found that the stress hormone cortisol suppresses immune cells' ability to activate their telomerase. This may explain why the cells of persons under chronic stress have shorter telomeres.

The Fight To End Aging Gains Legitimacy, Funding

oddwick11 writes "Aubrey de Grey and other leading scientists and thinkers in stem cell research and regenerative medicine will gather in Los Angeles at UCLA for Aging 2008 to explain how their work can combat human aging, and the sociological implications of developing rejuvenation therapies. From an article today in WIRED Magazine 'Now, though, some scientists are beginning to view his approach — looking at aging as a disease and bringing in more disciplines into gerontology — as worthwhile, even if they still look askance at his claims of permanent reversible aging within a lifespan. The Methuselah Foundation now has an annual research funding budget of several million dollars, de Grey says, and it's beginning to show lab results that he thinks will turn scientists' heads.

Penn Animal Study Suggests Inadequate Sleep May Exacerbate Cellular Aging in the Elderly; Cellular Response to Sleep Deprivation Is Impaired in Old Mice

Penn Animal Study Suggests Inadequate Sleep May Exacerbate Cellular Aging in the Elderly; Cellular Response to Sleep Deprivation Is Impaired in Old Mice

Study Suggests Music Industry Embrace Piracy

unassimilatible writes to tell us that according to the Financial Times, the music industry should embrace illegal file-sharing websites. A recent study of the recent Radiohead album release found that huge numbers of illegal downloads actually helped the band's popularity and, by extension, concert ticket sales. "Radiohead's release of In Rainbows on a pay-what-you-want basis last October generated enormous traffic to the band's own website and intense speculation about how much fans had paid. He urged record companies to study the outcome and accept that file-sharing sites were here to stay. 'It's time to stop swimming against the tide of what people want,' he said." Update 19:46 GMT by SM: Several readers (including the original author) have written in to mention that it isn't stressed enough that this study was engaged by the music in

Amount of physical activity by children steadily declines as they get older

New research documents the decline in physical activity among children, with less than a third meeting recommended physical activity guidelines by the time they are 15 years old, according to a study in the July 16 issue of JAMA.

The Hourglass Aging Science Blog Carnival

Chris Patil of Ouroboros is organizing a blog carnival for aging science and longevity research topics: "There's enough good science blogging about the biology of aging that the community deserves its own monthly carnival (along the lines of the general-biology carnival Tangled Bank, or the neuroscience carnival Encephalon, both of which we've hosted here before). So let's start one. I thought long and hard about names and settled on 'Hourglass,' which is topical enough to be appropriate, but general to be inclusive. ... Topics of posts should have something to do with the biology of aging, broadly speaking - including fundamental research in biogerontology, age-related disease, ideas about life extension technologies, your personal experience with calorie restriction, maybe even something about the sociological implications of increased

Book Review of Annual Review of Physical Chemistry, Volume 59, 2008

Volume 59 of Annual Review of Physical Chemistry contains 30 chapters covering the latest research in this broad field, from biophysical investigations of collapse mechanisms of biological thin films to research in sonoluminescence and cavitation by ultrasound irradiation, to coverage of quasicrystal surfaces. The opening chapter “A Fortunate Life in Physical Chemistry� is an autobiographical account by Stuart Rice of his “evolution as a physical chemist.� A Cumulative Index of Contributing Authors, Volumes 55−59 and a Cumulative Index of Chapter Titles, Volumes 55−59 complete the book.

Proposed Mission Could Study Space-Time Around Black Holes

What do black holes, magnetars and supernovae have in common? They all emit X-rays. But it's difficult, if not impossible to study certain aspects of the X-ray emissions from these powerful objects. And there's much we don't understand about how black holes distort space-time around them, or how magnetars affect their surroundings, or how cosmic rays are accelerated by shocks in supernova remnants. A proposed new NASA mission called Gravity and Extreme Magnetism (GEMS), will use a new technique to study what has been unattainable until now. GEMS won't study the X-ray emission of these objects directly, but will build up a picture indirectly by measuring the polarization of X-rays emitted from these violent regions.

2008 Digital Camera Usage and Satisfaction Study

The 2008 Digital Camera Usage and Satisfaction Study examines camera model lines in four body-style segments: point and shoot, premium point and shoot, ultra slim and digital single-lens reflex (DSLR). In each segment, four factors are measured to determine customer satisfaction: picture quality, performance, ease of operation, and appearance and styling. The study is based on responses from more than 8,000 consumers who purchased a digital camera between April 2007 and March 2008. The study was fielded in June and July 2008.

Study identifies changes to DNA in major depression and suicide

Autopsies usually point to a cause of death but now a study of brain tissue collected during these procedures, may explain an underlying cause of major depression and suicide. The international research group, led by Dr. Michael O. Poulter of Robarts Research Institute at The University of Western Ontario and Dr. Hymie Anisman of the Neuroscience Research Institute at Carleton University, is the first to show that proteins that modify DNA directly are more highly expressed in the brains of people who commit suicide. These proteins are involved in chemically modifying DNA in a process called epigenomic regulation. The paper is published in Biological Psychiatry.

Joslin study identifies protein that produces 'good' fat

BOSTON – Aug. 20, 2008 – A study by researchers at the Joslin Diabetes Center has shown that a protein known for its role in inducing bone growth can also help promote the development of brown fat, a "good" fat that helps in the expenditure of energy and plays a role in fighting obesity.

Animal study suggests inadequate sleep may exacerbate cellular aging in the elderly

PHILADELPHIA - Researchers at the University of Pennsylvania School of Medicine have shown that the unfolded protein response, which is a reaction to stress induced by sleep deprivation, is impaired in the brains of old mice.

Study Shows Link Between Spanking And Physical Abuse

But mothers who report that they or their partner spanked their child in the past year are nearly three times more likely to state that they also used harsher forms of punishment than those who say their child was not spanked, according to a new study led by the Injury Prevention Research Center at the University of North Carolina at Chapel Hill.

Penn animal study identifies new DNA weapon against avian flu

Researchers at the University of Pennsylvania School of Medicine have identified a potential new way to vaccinate against avian flu. By delivering vaccine via DNA constructed to build antigens against flu, along with a minute electric pulse, researchers have immunized experimental animals against various strains of the virus. This approach could allow for the build up of vaccine reserves that could be easily and effectively dispensed in case of an epidemic. This study was published last week in PLoS ONE.

Penn animal study identifies new DNA weapon against avian flu

PHILADELPHIA - Researchers at the University of Pennsylvania School of Medicine have identified a potential new way to vaccinate against avian flu. By delivering vaccine via DNA constructed to build antigens against flu, along with a minute electric pulse, researchers have immunized experimental animals against various strains of the virus. This approach could allow for the build up of vaccine reserves that could be easily and effectively dispensed in case of an epidemic. This study was published last week in PLoS ONE.

Inadequate Sleep May Exacerbate Cellular Aging In The Elderly, Animal Study Suggests

Researchers at the University of Pennsylvania School of Medicine have shown that the unfolded protein response, which is a reaction to stress induced by sleep deprivation, is impaired in the brains of old mice.

Physical Frailty May Be Linked To Alzheimer's Disease

Physical frailty, which is common in older persons, may be related to Alzheimer's disease pathology, according to a study published in the August 12, 2008, issue of Neurology®, the medical journal of the American Academy of Neurology.

Study shows reducing piracy benefits Microsoft VARs, some experts disagree

A recent study shows that reducing piracy will benefit Microsoft VARs, arguing that the VARs' income will increase as a result. The IDC study, which was sponsored by Microsoft and the International Association of Microsoft Certified Partners, says that VARs, rather than retailers, would be the biggest beneficiary from a reduction in piracy.

Study Says One in Three Consumers Copy Commercial DVDs

A new research study suggests that commercial DVD piracy by consumers is increasing at a dramatic rate. And perhaps it should be little surprise, but the study was funded by Macrovision, which specializes in protecting digital content.

Study says one in three consumers copy commercial DVDs

A new research study suggests that commercial DVD piracy by consumers is increasing at a dramatic rate. And perhaps it should be little surprise, but the study was funded by Macrovision, which specializes in protecting digital content.

UK and US guidelines on kids' physical activity levels need rethinking

Physical activity at the government-recommended level and obesity-related health outcomes: A longitudinal study

Study: Parasites Sometimes Essential

Parasites get little attention. But a new study shows that parasites can sometimes be an impressive presence in an ecosystem. A study of three Pacific estuaries found that parasites there actually outweighed larger animals, such as birds.

Study Says Open Source Software a Security Risk

chareverie writes "Fortify Software released a study where they concluded that open source software poses a large security risk to corporations who have implemented it. They reason this by stating that the fault lies within the open source communities and their failure to adhere to minimum security practices. Fortify Software studied 11 open source software packages, where the application server Tomcat was determined to be the best. The other 10 were found to have poor results, with those being Derby, Geronimo, Hibernate, Hipergate, JBoss, Jonas, OFBiz, OpenCMS, Resin and Struts. Jacob West, manager of Fortify's research group, reminds that purpose of the study was 'not to condemn open source software, but rather to point out that the security practices need to improve because open source adoption by enterprises and governments is growing

Study: OSS Communities Are Often Slackers in Security

Enterprises using certain kinds of open source software may be exposing themselves to serious security risks, according to a study from Fortify Software. The study, which focused primarily on non-commercially supported OSS, found many packages have no ground rules for reporting bugs and do not adequately inform users about how to use the applications safely.

Students practise physical skills for Lu opera

Students practise physical skills for Lu opera at an art school in Hefei, Anhui province July 22, 2008. About 38 students, aged 10 to 20, receive musical and physical training at the school for Lu opera, a traditional folk opera of Anhui, local media reported. [Agencies]

Search took 0.10 seconds.