Posted by Vicrram Theipanaathan on Friday, November 23, 2012,
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Researchers at the University of Copenhagen have found that a protein, known for causing cancer cells to spread around the body, is also one of the molecules that trigger repair processes in the brain. These findings are the subject of a paper, published this week in Nature Communications. They point the way to new avenues of research into degenerative brain diseases like Alzheimer's.
How to repair brain injuries is a fundamental question facing brain researchers. Scientists have been familiar... Continue reading ...
Posted by Vicrram Theipanaathan on Thursday, November 22, 2012,
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Researchers utilized stretchable electronics to create a catheter to make cardiac ablation simpler. (Credit: Image courtesy of Northwestern University) Researchers at the McCormick School of Engineering are part of a team that has used stretchable electronics to create a multipurpose medical catheter that can both monitor heart functions and perform corrections on heart tissue during surgery.
The device marks the first time stretchable electronics have been applied to a surgical process known ... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, November 21, 2012,
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Scientists have discovered a subpopulation of cells that display cancer stem cell properties and resistance to chemotherapy, and participate in tumor progression. (Credit: © Jezper / Fotolia) Scientists at Mount Sinai School of Medicine have discovered a subpopulation of cells that display cancer stem cell properties and resistance to chemotherapy, and participate in tumor progression. This breakthrough could lead to the development of new tests for early cancer diagnosis, prognostic tests, ... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, November 21, 2012,
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Concept illustration of the microscale free-surface microfluidic channel as it concentrates vapor molecules that bind to nanoparticles inside a chamber. A laser beam detects the nanoparticles, which amplify a spectral signature of the detected molecules. (Credit: Image courtesy of University of California - Santa Barbara) Portable, accurate, and highly sensitive devices that sniff out vapors from explosives and other substances could become as commonplace as smoke detectors in public places, ... Continue reading ...
Posted by Vicrram Theipanaathan on Tuesday, November 20, 2012,
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Scientists at MU have found that treatment with a compound found in grape skins and red wine could increase the chances of a full recovery from all types of prostate cancer, including aggressive tumors. (Credit: Image courtesy of University of Missouri-Columbia) Resveratrol, a compound found commonly in grape skins and red wine, has been shown to have several beneficial effects on human health, including cardiovascular health and stroke prevention. Now, a University of Missouri researcher has... Continue reading ...
Posted by Vicrram Theipanaathan on Monday, November 19, 2012,
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Whether you are an apple tree or an antelope, survival depends on using your energy efficiently. In a difficult or dangerous situation, the key question is whether exerting effort -- sending out roots in search of nutrients in a drought or running at top speed from a predator -- will be worth the energy.
In a paper published online Nov. 18 inNature, Karl Deisseroth, MD, PhD, a professor of bioengineering and of psychiatry and behavioral sciences at Stanford University, and postdoctoral scholar... Continue reading ...
Posted by Vicrram Theipanaathan on Saturday, November 17, 2012,
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Low levels of vitamin D in people with diabetes appear to encourage cholesterol to build up in arteries, eventually blocking the flow of blood. In mice, immune cells adhering to the wall of a major blood vessel near the heart are loaded with cholesterol (shown in red). (Credit: Bernal-Mizrachi lab) People with diabetes often develop clogged arteries that cause heart disease, and new research at Washington University School of Medicine in St. Louis suggests that low vitamin D levels are to bla... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, November 14, 2012,
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Researchers from Johns Hopkins and Northwestern universities have discovered how to control the shape of nanoparticles that move DNA through the body and have shown that the shapes of these carriers may make a big difference in how well they work in treating cancer and other diseases.
This study, to be published in the Oct. 12 online edition of the journalAdvanced Materials, is also noteworthy because this gene therapy technique does not use a virus to carry DNA into cells. Some gene therapy e... Continue reading ...
Posted by Vicrram Theipanaathan on Monday, November 12, 2012,
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An experimental diet with carbohydrates eaten mostly at dinner could benefit people suffering from severe and morbid obesity, according to new research at the Hebrew University of Jerusalem.
The diet influences secretion patters of hormones responsible for hunger and satiety, as well as hormones associated with metabolic syndrome. In this way the diet can help dieters persist over the long run, and reduce risk factors for diabetes and cardiovascular disease. The research was carried out by res... Continue reading ...
Posted by Vicrram Theipanaathan on Thursday, November 8, 2012,
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One of the largest studies to look at the effect of induced abortions on a subsequent first birth has found that women who have had three or more abortions have a higher risk of some adverse birth outcomes, such as delivering a baby prematurely and with a low birth weight.
The research, which is published online in Europe's leading reproductive medicine journal Human Reproduction Aug. 29, found that among 300,858 Finnish mothers, 31,083 (10.3%) had had one induced abortion between 1996-2008, 4... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, November 7, 2012,
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Chimpanzee. Humans share over 90% of their DNA with their primate cousins. The expression or activity patterns of genes differ across species in ways that help explain each species' distinct biology and behavior. (Credit: © davemhuntphoto / Fotolia) Humans share over 90% of their DNA with their primate cousins. The expression or activity patterns of genes differ across species in ways that help explain each species' distinct biology and behavior.
DNA factors that contribute to the differences... Continue reading ...
Posted by Vicrram Theipanaathan on Tuesday, November 6, 2012,
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Health
Painkilling drugs that make many therapies possible are a blessing for patients. Thanks to modern anesthetics, not only can surgical operations be conducted without causing pain, they are also used for various diagnostic procedures. Anesthetics can be very useful in therapies for stroke patients, as psychologists and physicians of the Friedrich Schiller University Jena (Germany) and the University Hospital Jena are now able to demonstrate.
In the Journal of Neuroscience the researchers present... Continue reading ...
Posted by Vicrram Theipanaathan on Monday, November 5, 2012,
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Veterinary scientists at the University of Liverpool have found that, like humans, obese dogs can experience metabolic syndrome, a condition that describes multiple health issues that occur in the body at the same time.
The condition occurs when a number of health problems, such as increased blood glucose and increased cholesterol levels, develop together, with the potential to increase the risk of other diseases, such as cardiovascular disease and diabetes. Although canine obesity is known to ... Continue reading ...
Posted by Vicrram Theipanaathan on Saturday, November 3, 2012,
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President George W. Bush made no secret that he detested broccoli. With all due respect to our former leader, researchers have found one more great reason to add fruits, vegetables, herbs and tea to your diet.
A study by Susan Steck of the Arnold School of Public Health finds that a high intake of flavonoids, a group of compounds found in plants, may lower the risk for highly aggressive prostate cancer. "Incorporating more plant-based foods and beverages, such as fruits, vegetables, herbs and t... Continue reading ...
Posted by Vicrram Theipanaathan on Thursday, November 1, 2012,
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Mackerel fish on ice. (Credit: © Alexander Raths / Fotolia) Eating at least two servings of oily fish a week is moderately but significantly associated with a reduced risk of stroke, finds a study published on the British Medical Journal website.But taking fish oil supplements doesn't seem to have the same effect, say the researchers. Regular consumption of fish and long chain omega 3 fatty acids has been linked with a reduced risk of coronary heart disease and current guidelines recommend ea... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, October 31, 2012,
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 A single meal -- composed mainly of saturated fat -- is detrimental to the health of the arteries, while no damage occurs after consuming a Mediterranean meal rich in good fats such as mono-and polyunsaturated fatty acids. The high saturated fat meal testing in the study consisted of a sandwich made of a sausage, an egg, and a slice of cheese, and three hash browns, for a total of 58% of total calories from fat: extremely rich in saturated fatty acids and containing no omega-3s. (Credit: © G... Continue reading ...
Posted by Vicrram Theipanaathan on Monday, October 29, 2012,
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A pair of seed beetles demonstrating sexual selection. (Credit: Image courtesy of University of Cincinnati) A new collaborative project among researchers from Uppsala University in Sweden and the University of Cincinnati has, for the first time, demonstrated experimentally the evolutionary force behind the rapid evolution of male genitals, focusing on a species of seed beetle.
This mechanism is revealed in a study published October 25 in the scientific journal Current Biology. The experiments ... Continue reading ...
Posted by Vicrram Theipanaathan on Sunday, October 28, 2012,
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Silvery fish such as herring, sardine and sprat have evolved special skin that gets around a basic law of physics, according to new research from the University of Bristol published Oct. 21 in Nature Photonics.
Reflective surfaces polarize light, a phenomenon that fishermen or photographers overcome by using polarizing sunglasses or polarizing filters to cut our reflective glare. However, PhD student Tom Jordan and his supervisors Professor Julian Partridge and Dr Nicholas Roberts in Bristol's... Continue reading ...
Posted by Vicrram Theipanaathan on Sunday, October 28, 2012,
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Health
The ability of embryonic stem cells to differentiate into different types of cells with different functions is regulated and maintained by a complex series of chemical interactions, which are not well understood. Learning more about this process could prove useful for stem cell-based therapies down the road. New research from a team led by Carnegie's Yixian Zheng zeroes in on the process by which stem cells maintain their proper undifferentiated state.
Their results are published in CellOctobe... Continue reading ...
Posted by Vicrram Theipanaathan on Friday, October 26, 2012,
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Health
It is well known that breast feeding increases the secretion of the prolactin hormone and inhibits ovulation in women. This prevents the onset of a new pregnancy too soon, and so breast feeding was used in the past as a method of contraception. In addition to this physiological condition, there are many other pathological conditions in which the production of prolactin is increased. One of the most frequent is the existence of tumours that induce an over-secretion of this hormone. These wome... Continue reading ...
Posted by Vicrram Theipanaathan on Thursday, October 25, 2012,
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Health
Governments around the world are leaving hundreds of millions of cancer patients to suffer needlessly because of their failure to ensure adequate access to pain-relieving drugs, an unprecedented new international survey reveals.
The new data, released to the public during the ESMO 2012 Congress of the European Society for Medical Oncology in Vienna, paints a shocking picture of unnecessary pain on a global scale, said Prof Nathan Cherny, lead author of the report from Shaare Zedek Medical Cent... Continue reading ...
Posted by Vicrram Theipanaathan on Wednesday, October 24, 2012,
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Health
New research adds to the growing body of evidence suggesting that there’s a link between allergies and reduced risk of a serious type of cancer that starts in the brain. This study suggests the reduced risk is stronger among women than men, although men with certain allergy profiles also have a lower tumor risk.
The study also strengthens scientists’ belief that something about having allergies or a related factor lowers the risk for this cancer. Because these tumors, called glioma, have t... Continue reading ...
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