Consuming fish at least once a month, and increased blood levels of ALA and DPA, may reduce the risk of heart failure, says a new study that adds to the heart health benefits of omega-3.
This study focused on ALA and DPA, a little-known omega-3.
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Air pollution is a major risk to human health.
The World Health Organization estimates that dirty air kills some two million people per year worldwide, and that the number is climbing (WHO 2011).
A pair of studies published nine years ago found that heart rate variability improved after participants who routinely breathed air polluted with particulate matter took omega-3 fish oil supplements (Holguin F et al. 2005; Romieu I et al. 2005).
Researchers at London's Great Ormond Street Hospital aim to grow a human ear via stem cells taken from a patient's fat tissue. Relatively little attention has been given to the reconstruction of damaged cartilage around the cranial area, however the new method is hoped to modernize this area of reconstructive surgery.
Currently to repair damaged or non-existent cartilage in the ear, an operation is usually carried out when the patient is a child. Cartilage is extracted from the patient's ribs and painstakingly crafted into the form of an ear, before being grafted back onto the individual.
Whilst this method of reconstruction achieves good results, it also has some unpleasant side effects.
U.S. and Italian researchers tracked thousands of adults during nearly two decades and found that those who ate a diet high in animal proteins during middle age were four times more likely to die of cancer than contemporaries with low-protein diets — a risk factor, if accurate, comparable to smoking. They also were several times more likely to die of diabetes, researchers said.
Activating a protein called sirtuin 1 extends lifespan, delays the onset of age-related metabolic diseases, and improves general health in mice. The findings, which appear online February 27 in the Cell Press journal Cell Reports, point to a potentially promising strategy for improving health and longevity.
Sirtuin 1, or SIRT1, is known to play an important role in maintaining metabolic balance in multiple tissues, and studies in various organisms have shown that activating the protein can lead to many health benefits. Also, drugs that increase SIRT1 activity have been found to slow the onset of aging and delay age-associated diseases in several animal models.
Ray and Terry's 's insight:
Resveratrol may activate SIRT1
When it comes to monitoring the electrical activity of the heart, or delivering electrical stimulation to it (as in the case of pacemakers), most current technologies rely on electrodes that make contact with the organ in just a few locations. That doesn't necessarily provide a very detailed picture of what's going on, nor does it deliver stimulation all that evenly.
Now, scientists have created a sensor-laden three-dimensional elastic membrane that can be pulled over the whole heart, to provide a large number of contact points.
My boys love to talk about the biggest bone in their body (the femur) and the largest muscle (the gluteus maximus). What is it with boys and big? I stumped them recently when I asked them to name the body’s largest organ. They debated between the large intestine and the liver. Nope, neither.
Our skin is our largest organ. It protects us from harsh temperatures, sunlight and chemicals, and also prevents infections from entering our bodies. It makes Vitamin D and has sensors that tell our brains what is happening in the world outside our bodies. Our skin also excretes toxins and waste products — pounds of them a day. And for the aged, it can often tell a story right on our faces!
Omega-3s from fish are essential to brain function and health.
Omega-3 EPA and DHA abound in virtually every human cell, and in seafood … and DHA is by far the dominant fat in human brains, where it plays many essential roles.
Some, though not all, population studies link higher fish intake to lower risk of Alzheimer’s disease (AD) and other forms of dementia.
Unfortunately, there’s no foolproof way to vet your doctor, says physician Michael Carome, director of the health research group at Public Citizen, a consumer advocacy organization based in Washington. But there are some basic steps you can take to look into a doctor’s credentials and record.
People who eat a vegetarian diet tend to have lower blood pressure than non-vegetarians, according to a new review of past studies.
Researchers said for some people, eating a vegetarian diet could be a good way to treat high blood pressure without medication
While we can counter the deterioration of sight and hearing with glasses and hearing aids, few tools exist for combating a degenerating sense of touch. A common ailment among stroke patients and the aging, treating diminishing tactile perception has proven a complicated task. Looking to provide a wearable solution unimposing enough for everyday use, a research team from Germany's Ruhr University Bochum (RUB) is developing a stimulation glove designed to be worn passively to alleviate such impairments.
The technology for a device that would provide real-time 3D imaging from inside the heart, coronary arteries, and peripheral blood vessels has been developed by Georgia Institute of Technology researchers.
With its volumetric imaging, the new device could better guide surgeons working in the heart and allow more of patients’ clogged arteries to be cleared without major surgery.
The notion of 3D printed biological tissue holds all kinds of possibilities for drug testing and the reparation of damaged cells, though replicating the complexities of human tissue in a lab presents some very big challenges. A new bioprinting method developed by researchers from the Wyss Institute for Biologically Inspired Engineering at Harvard University has enabled the creation of tissue constructs with small blood vessels and multiple cell types, marking important progress toward the printing of living tissue.
For people living with type 1 diabetes, a constant process of monitoring and adjusting blood sugar levels is required. A change may be on the horizon, though. A bionic pancreas trialled among 30 adults has been very well-received by the participants, and has been approved by the US Food and Drug Administration (FDA) for three transitional outpatient studies over the next 18 months.
People with type 1 diabetes are unable to produce insulin, a hormone that is required to control the level of sugar in the bloodstream. As a result, blood sugar levels can vary dramatically, causing potential damage to body organs when too high, or confusion and loss of consciousness when too low.
University of Washington scientists and engineers are developing a low-cost device that could help pathologists diagnose pancreatic cancer* earlier and faster.
The prototype can perform the basic steps for processing a biopsy, relying on fluid transport instead of human hands to process the tissue.
“This new process is expected to help the pathologist make a more rapid diagnosis and be able to determine more accurately how invasive the cancer has become, leading to improved prognosis,” said Eric Seibel, a UW research professor of mechanical engineering and director of the department’s Human Photonics Laboratory.
Human Longevity Inc. (HLI), a genomics and cell therapy-based diagnostic and therapeutic company focused on extending the healthy, high performance human life span, was announced today by co-founders J. Craig Venter, Ph.D., Robert Hariri, M.D., Ph.D., and Peter H. Diamandis, M.D.
The company, headquartered in San Diego, California, is being capitalized with an initial $70 million in investor funding.
Largest human sequencing operation
HLI’s funding is being used to build the largest human sequencing operation in the world to compile the most comprehensive and complete human genotype, microbiome, and phenotype database available to tackle the diseases associated with aging-related human biological decline.
It’s March, National Nutrition Month, when the Academy of Nutrition and Dietetics spotlights the important role of healthful eating and physical activity to control weight and prevent chronic disease. But these aren’t snap-your-fingers, easy-to-achieve goals to execute in fast-paced, convenience-driven Washington.
Here are tips from nutritionists that will help you with healthful eating, physical activity and more.
Ray and Terry's 's insight:
Don't forget to snack. Eat (lightly) often, eat well.
Using pneumatic artificial muscles, scientists have replicated the 3D twisting motion of the beating heart.
The research could lead to better-functioning cardiac implants, among other things.
The scientists, from Harvard's Wyss Institute for Biologically Inspired Engineering and Harvard's School of Engineering and Applied Sciences, started with what is known as a pneumatic artificial muscle (PAM). Modeled after the striated muscle fibers found in the heart, it was made from silicone elastomer embedded with braided mesh, hooked up to an air tube.
When air was pumped into the PAM, it responded by twisting and thus becoming shorter. This is similar to the natural fibers, which also contract by twisting and shortening.
Researchers in Houston have developed a cost effective method for printing living cells, claiming almost a 100 percent survival rate. The method, which is akin to a modern version of ancient Chinese wood block printing, allow cells to be printed on any surface and in virtually any two dimensional shape. And while current inkjet printers adapted to print living cells can cost upwards of US$10,000 with a cell survival rate of around 50 percent, this simple new technique could see the cell stamps produced for around $1.
While Block-Cell-Printing, BloC-Printing for short, has its limitations, it is much slower and more labor intensive than inkjet and is as yet unable to print in three dimensions, the technology is still in its infancy.
For scientists to determine if a cell is functioning properly, they must destroy it (with X-rays), possibly giving false accounts of how the cell actually works.
Now, researchers at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have created a new probe that freezes cells to “see” at greater detail without damaging the sample.*
Johns Hopkins researchers have trained the immune systems of mice to fight melanoma, a deadly skin cancer, by using nanoparticles designed to target cancer-fighting immune cells, The experiments, described in ACS Nano February 24, represent a significant step toward using nanoparticles and magnetism to treat a variety of conditions, the researchers say.
“By using small enough particles, we could, for the first time, see a key difference in cancer-fighting cells, and we harnessed that knowledge to enhance the immune attack on cancer,” said Jonathan Schneck, M.D., Ph.D., a professor of pathology, medicine and oncology at the Johns Hopkins University School of Medicine‘s Institute for Cell Engineering.
Schneck’s team has pioneered the development of artificial white blood cells...
Not everyone's blood clots at the same rate. While that might seem like simply an interesting bit of trivia, it's anything but trivial to doctors performing operations or emergency procedures, who need to know what might be required in the way of transfusions or anticoagulant drugs. Now, an optical device can provide them with that information within minutes.
Currently, in order to measure its clotting properties, patients' blood must be subjected to a series of lab tests that can take hours to perform, that require relatively large amounts of blood, or that involve large, expensive machines. The new device, developed by a team at Massachusetts General Hospital, gets much quicker, less costly results, it's about the size of a Kleenex box, and it only requires a few drops.
One factor that makes glioblastoma cancers so difficult to treat is that malignant cells from the tumors spread throughout the brain by following nerve fibers and blood vessels to invade new locations.
Now, Georgia Tech and Emory University researchers have learned to hijack this migratory mechanism, turning it against the cancer by using a film of nanofibers to lure tumor cells away.
Instead of invading new areas, the migrating cells latch onto the specially-designed nanofibers and follow them to a location — potentially outside the brain — where they can be captured and killed.
3D printing technology has assisted in life-saving heart surgery performed on a 14-month old child, with the J.B Speed School of Engineering at the University of Louisville producing a printed model of the child's heart prior to the procedure, allowing the doctors to better prepare for the operation.
Chief of Radiology at Kosair Children's Hospital Philip Dydysnki approached the school when he and his medical team were looking at ways of treating Roland Lian Cung Bawi, a boy born with four heart defects.
Scientists at Stanford Bio-X, the institution's department for breakthrough discoveries about the human body and disease, have modified mice with gene therapy so that their sensitivity to pain can be altered by shining light on their paws.
This application of the neuromodulation technique called optogenetics starts with the insertion of light-sensitive proteins called opsins into the nerves of the mice. The researchers then showed that that exposure to one color of light can increase pain sensitivity in the mice whilst another reduces it.
In a study published in The Lancet Neurology, researchers outline new chemicals that may be contributing to what they dub the “global, silent pandemic of neurodevelopmental toxicity.”
In 2006, the team had released a list of five neurotoxins that may contribute to everything from cognitive deficits to attention problems. Now that list is expanded, based on new research that has since accumulated on chemicals linked to developmental disorders in children.