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8 million lives saved since surgeon general’s tobacco warning 50 years ago

By Guest PostJanuary 13, 2014Healthamerican, american medical association, anti smoking measures, behavior, bombshell, cigarette, clare meernik, cory doctorow, david levy, georgetown university, journal, long term effect, luther terry, public attitude, rafael meza, surgeon general, theodore r holford, tobacco control measure, tobacco warning, united states, us surgeon general

A Yale study estimates that 8 million lives have been saved in the United States as a result of anti-smoking measures that began 50 years ago this month with the groundbreaking report from the Surgeon General outlining the deadly consequences of tobacco use. The Yale School of Public Health-led analysis is published in the Journal of the American Medical Association.

The study used mathematical models to calculate the long-term effect of the seminal report, and subsequent anti-smoking measures, over the past half-century. These cumulative efforts have significantly reshaped public attitudes and behaviors concerning cigarettes and other forms of tobacco, note the researchers. (more…)

UA Study’s Findings Key to Understanding Immunity as We Age

By Guest PostJanuary 11, 2014Healthaging, aging immune system, cell aging

UA researchers have discovered that two separate defects combine to contribute to reduced T cell responses with aging.

Researchers at the University of Arizona College of Medicine – Tucson have found a key to understanding the aging immune system’s decreased response to infectious diseases, which remain among the leading causes of death in older adults. (more…)

Green spaces deliver lasting mental health benefits

By Guest PostJanuary 8, 2014Environment, Healthgreat britain, green space, health benefits, households, ian alcock, mathew white, mental health, novelty effect, towns, urban areas

Green space in towns and cities could lead to significant and sustained improvements in mental health, finds a new study published in the journal of Environmental Science & Technology.

Analysing data that followed people over a five year period, the research has found that moving to a greener area not only improves people’s mental health, but that the effect continues long after they have moved.

The findings add to evidence that suggests increasing green spaces in cities – such as parks and gardens – could deliver substantial benefits to public health. (more…)

New Technique Targets Specific Areas of Cancer Cells with Different Drugs

By Guest PostJanuary 8, 2014Healthadriano bellotti, cancer cell, chapel hill, conventional treatment techniques, dox, doxorubicin, drugs, enzymes, jianping zhou, large scale manufacturing, nanoparticle, new technique, north Carolina, nucleus, programmed strategy, ran mo, specific area, state university, target, tianyue jiang, zhen gu

Researchers have developed a technique for creating nanoparticles that carry two different cancer-killing drugs into the body and deliver those drugs to separate parts of the cancer cell where they will be most effective. The technique was developed by researchers at North Carolina State University and the University of North Carolina at Chapel Hill.

“In testing on laboratory mice, our technique resulted in significant improvement in breast cancer tumor reduction as compared to conventional treatment techniques,” says Dr. Zhen Gu, senior author of a paper on the research and an assistant professor in the joint biomedical engineering program at NC State and UNC-Chapel Hill. (more…)

Parasitic DNA proliferates in aging tissues

By Guest PostJanuary 5, 2014Healthaging tissues, cancerous tissue, cancerous tumors, cell culture, DNA, fruit fly drosophila, hepatocellular carcinoma, jill kreiling, john sedivy, journal aging, lymphoma, marco dececco, normal tissues, parasitic dna, replicative senescence, retrotransposable elements, robert reenan, rtes, stephen helfand

As mice age, cells in tissues such as the liver and skeletal muscle lose control over rogue sequences of DNA called “retrotransposable elements,” according to new research in the journal Aging. The elements, which may undermine health, could proliferate in old mice and were also abundant in cancerous tissue. A low-calorie diet, however, restrained their advance.

PROVIDENCE, R.I. [Brown University] — The genomes of organisms from humans to corn are replete with “parasitic” strands of DNA that, when not suppressed, copy themselves and spread throughout the genome, potentially affecting health. Earlier this year Brown University researchers found that these “retrotransposable elements” (RTE’s) were increasingly able to break free of the genome’s control in cultures of human cells. Now in a new paper in the journal Aging, they show that RTEs were increasingly able to break free and copy themselves in the tissues of mice as the animals aged. In further experiments the biologists showed that this activity was readily apparent in cancerous tumors, but that it also could be reduced by restricting calories. (more…)

Wer am Arbeitsplatz und zu Hause ständig sitzt

By Guest PostJanuary 5, 2014Healtharbeitsplatz, bewegung, das video, der koerper, einige tipps, gesund bleiben, infosperber, moebelhersteller varier furniture, staendig sitzt

Langes Sitzen ist widernatürlich. Der Körper braucht Bewegung, damit wir uns wohl fühlen und gesund bleiben. Einige Tipps.(english)

If your work or home life involves a lot of sitting, you may watch this 3-minute clip. (more…)

How a Concussion Can Lead to Depression Years Later

By Guest PostJanuary 4, 2014Healthashley fenn, brain cells, common antidepressants, concussion, depression, depressive symptoms, excessive inflammation, high alert cells, immune system, inflammation related, jonathan godbout, lipopolysaccharide, lps, microglia, multiple concussions, phillip popovich, primed state, secondary challenges, tbi, traumatic brain injury, yan huang

After brain injury, cells on ‘high alert’ prolong immune response, affecting behavior

COLUMBUS, Ohio – A head injury can lead immune-system brain cells to go on “high alert” and overreact to later immune challenges by becoming excessively inflammatory – a condition linked with depressive complications, a new animal study suggests.

The findings could help explain some of the midlife mental-health issues suffered by individuals who experience multiple concussions as young adults, researchers say. And these depressive symptoms are likely inflammation-related, which means they may not respond to common antidepressants. (more…)

TB bacteria mask their identity to intrude into deeper regions of lungs

By Guest PostJanuary 3, 2014Healthinfection killing cells, samples of tb, tb causing bacteria, tb cells, tb infections, tb pathogens, tuberculosis infections

TB-causing bacteria appear to mask their identity to avoid recognition by infection-killing cells in the upper airways. The bacteria call up more permissive white blood cells in the deeper regions of the lungs and hitch a ride inside them to get into the host’s body. (more…)

Category Archives: Health