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Showing posts with label reasearch. Show all posts
Showing posts with label reasearch. Show all posts

Drinking too much tea ‘can cause bone problems’

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A new research by Medical College of Georgia has shown that black tea contains higher concentrations of fluoride than previously thought.

"The additional fluoride from drinking two to four cups of tea a day won't harm anyone; it's the very heavy tea drinkers who could get in trouble," said Dr. Gary Whitford, Regents Professor of oral biology in the School of Dentistry.

Most published reports show 1 to 5 milligrams of fluoride per litre of black tea, but a new study shows that number could be as high as 9 milligrams.

Good news for fast food addicts .

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Cant stop eating Junk Food ?? aahhaa me too. Dont think i am fat :)

Here is what i found some good news about it.Five major US food chains, including McDonald's and Burger King, have cut down on trans fats in their food.

Trans fats can elevate the risk of heart disease by increasing "bad" cholesterol and decreasing "good" cholesterol levels.

The latest findings from University of Minnesota School of Public Health suggest that major fast food chains may have been responsive to public health concerns.

UK researchers will study the use of Human stem cell for cure of parkinson disease.

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(BBC) -A Oxford University team will use adult stem cells, which have the ability to become any cell in the human body - to examine the neurological condition.

Skin cells will be used to grow the brain neurons that die in Parkinson's, a conference will hear.

The research will not involve the destruction of human embryos.

Induced pluripotent stem (IPS) cells were developed in 2007.

At the time, scientists said it had the potential to offer many of the advantages of embryonic stem cells without any of the ethical downsides.

New insulin form may keep sugar low in diabetics for 3 months .

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Indian scientists having discovered a novel form of the hormone that can keep blood glucose levels down for upto three months.

A team of scientists of the National Immunology Institute of India, led by Mr Avdesh Surolia, has developed a fresh approach to insulin injection wherein 'Supramolecular Insulin Assembly-II (SIA-II)', a form of the hormone, is used for a sustained treatment of diabetes mellitus type-I.

The studies constitute the first work of its kind where a single administration of SIA-II to animal models of diabetes, such as rats, has been experimentally demonstrated to lower blood glucose levels to normal values for as many as for 120 days.

SIA-II, which is in the form of a prodrug, when injected releases just above basal levels of insulin into the blood in a sustained manner, Mr Surolia said.

Being Slim doesn't always means Being Healthy.

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You may be slim and still have dangerously high levels of fat within you, according to the British Medical Research Council.

Using MRI body scanners doctors demonstrated that even super-slim people could have high levels of internal fat collecting around the heart, liver, kidneys and pancreas. These people, dubbed "skinny-fats", could be seriously putting their health at risk.

"The fat we can see on overweight people is subcutaneous fat," The Daily Telegraph quoted Dr Ron McCoy, Melbourne-based spokesperson for the Royal College of Australian GPs, as saying. However, what could be more dangerous is visceral fat or the fat we can't see but which surrounds vital organs.

Sweet drinks reduce stress and aggression

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Sweet drinks such as sugary tea help to reduce stress at work, and make people less likely to be aggressive or argumentative, psychologists say.

According to a study, the energy boost provided by the sugar enables the brain to maintain control over its impulses, meaning people can prevent themselves from reacting spontaneously when under stress, reports telegraph.co.uk.

Tests on volunteers, some of whom were given lemonade sweetened with sugar and some with artificial sweetener, showed that those who had drunk sugar performed better under pressure.

Scientists develop a brain chip that could potentially defeat paralysis and more.

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Researchers in the UK are on the verge of producing a technology that might allow paralysed patients to operate bionic limbs via a transmitter brain implant. The technology relies on tiny microprocessors that will sense nerve impulses, decode the signals, and then transmit them to the bionic limbs. All this takes place wirelessly, which makes it unique compared to other experiments in the field, which actually required a wire to be attached to the processor.

While the idea behind this technology has been there for a while, the means with which to actually decode impulses and relay them intelligibly has been missing. Perhaps the most important aspect of the new technology are the decoding algorithms which give the chips the ability to recognize which impulses will control which limb, rather than the relaying of the signal aspect. In fact, this is a potential step towards an actual integration between microprocessors and the brain, which has thousands of potential applications, from physical training to data storage, augmented reality to internet connectivity. In fact, the zenith of the technology will be to provide an artificial link between the limb and the brain, bypassing the damaged nerves (or centers) that are causing the paralysis. A possible way to do this would be by transmitting signals from the brain implant to another implant, a stimulator in the spinal cord.

Car to run with 'petrol made from CO2'

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Scientists are inching closer to produce a new fuel from carbon dioxide and sunlight which they claim will help meet world's energy needs and minimise carbon emissions.

A team at Sandia National Laboratories in Albuquerque, New Mexico, is developing the technique which will produce "synthetic liquid fuels" in solar-powered reactors.

Experiments have also shown that the reactors can absorb carbon dioxide (CO2) and turn it into carbon monoxide. The same reactors can also be used to turn water into hydrogen and oxygen.

The two can then be reacted together with a catalyst to form hydrocarbon fuels, in a technique known as the "Fischer-Tropsch" process.

Saliva could hold clue to Cancer Cure

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Scientists have developed a revolutionary saliva test that could hold the clue to a cure for cancer.

According to the researchers, the test could be used for widespread early screening even before symptoms show, potentially saving millions of lives.

“The ability to implement safe, cost-effective, widespread screening could be the answer to saving thousands of lives each year and that is what we are after. Our objective is to revolutionise the diagnosis and treatment of cancer in the future,” the Daily Express quoted lead author David Wong, professor of dentistry at the University of California, as saying.

Australian scientists develop the ideal prawn.

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After 10 years of careful breeding and research, Commonwealth Scientific and Industrial Research Organisation (CSIRO) scientists have bred a larger tiger prawn, which will reduce the need to import the popular seafood platter and barbecue food.

The new prawn, which has won five gold medals at Australian marine aquaculture shows in recent years, means an increase in prawn yield from an average of around 5 tonnes per hectare to 17.5 tonnes per hectare.

"One of the (prawn) ponds actually achieved 24.2 tonnes per hectare, which is a world record," Bruce Lee, director of the CSIRO's Food Future Flagship.

Fit people are seems to be Smart.

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The facts is that team of researchers have found that smarter people are apparently a bit more symmetrical in terms of the shape of their body than less-intelligent individuals. The team observed that body symmetry is measured by looking at those parts of the body that come in pairs, right and left — such as fingers, toes, hands and feet — and then measuring and comparing the width and length of each side.

To arrive at their conclusion, the researchers examined 14 previous studies that in total explored the possible body-brain connection among nearly 1,900 people.

They noted that past efforts have pointed towards intelligence as being a key indicator of future health, mortality and perhaps even overall fitness; a critical ingredient in boosting the chances for reproductive success and overall survivability.

It was this evidence of a connection between fitness and brains that sparked the notion among the team that body symmetry might correlate with intelligence.

Wine for Better Eye Vision.

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(IANS) Resveratrol, an ingredient found in red wine, grapes, blueberries, peanuts and some plants, stops uncontrolled blood vessel growth in the eye, says a study led by an Indian-American.

'Resveratrol has been identified as an anti-aging compound. Given our interest in age-related eye diseases, we wanted to find out whether there was any link,' said retina specialist Rajendra S. Apte, senior study investigator.

Apte, formerly from Mumbai University and now with the Washington University School of Medicine in St. Louis, added: 'There were reports on resveratrol's effects on blood vessels in other parts of the body, but there was no evidence that it had any effect within the eye.'

Cell Phone Towers Not a Cancer Risk for Kids

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Mobile phone base station towers boost cell reception, not childhood cancer risk, a British study has shown.

Children whose mothers lived near a high-output cell phone antenna mast while pregnant were no more likely to develop childhood cancer than those who lived farther away, found Paul Elliott of Imperial College London and colleagues. The researchers reported their findings online in the British Medical Journal.

"The risks are dwarfed by the well known dangers of distraction while using mobile phones, especially when driving-even when using hands-free equipment," he wrote in the editorial.

But because of the high levels of public concern, Elliott's group conducted a study looking at all 1,397 cases of central nervous system cancer, leukemia, and non- Hodgkin's lymphomas in children up to age 4 years in the U.K. national cancer registry from 1999 to 2001.

US fight backs against Anthrax.

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Dimitrios Bouzianas, molecular endocrinologist, AHEPA University Hospital in Macedonia, Greece, notes that several existing antibiotics are available to combat an anthrax infection.

However, the emergence of artificially engineered B. anthracis strains, resistant to multiple antibiotics (including the front-line agents ciprofloxacin, doxycycline, and ß-lactam antibiotics) has prompted researchers to pursue additional therapeutic options.

Such alternatives include small molecules and antibodies against toxins that the lethal bacteria secrete.

Today's drug arsenal has another weakness: no medications available to fight the dangerous toxin that can circulate in a person's blood when antibiotic treatment begins after the disease has taken hold.

Researchers Find Language Helps People Solve Spatial Problems

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Pyers tested two groups of deaf people who use the sign language.

"Nicaraguan Sign Language is only about 35 years old, and as a young language it is undergoing rapid change," Pyers explained. "The language is becoming more complex in the hands of the children of the community, and most older members of the community do not learn the new complexities introduced by the following generation. As a result, the language of the younger adults in the community is more complex than the language of the older adults."

The sign language allowed Pyers to compare younger and older adult signers who share a cultural environment (Managua, Nicaragua), but who have different levels of language ability, to see how they compared in their knowledge about spatial environments.

Potatoes powering our Energy Needs.

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Yissum Research Development Company Ltd., the technology transfer arm of the Hebrew University of Jerusalem, has just introduced what they're calling "solid organic electric battery based upon treated potatoes." In short, it's a potato powered battery, and it's as real as you're hoping it is.

The simple, sustainable, robust device can potentially provide an immediate inexpensive solution to electricity needs in parts of the world lacking electrical infrastructure, but we're hoping that it can work a similar amount of magic for developed nations as well.

Researchers at the Hebrew University discovered that the enhanced salt bridge capability of treated potato tubers can generate electricity through means readily available in the developing world. This cheap, easy to use green power source could substantially improve the quality of life of 1.6 billion people, comprising 32% of the developing non-OECD populations, currently lacking access to electrical infrastructure. Such a source can provide important needs, such as lighting, telecommunication, and information transfer.

Drug for bowel cancer can treat eye disease.

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A cheap, unlicensed drug originally produced for bowel cancer can treat an eye condition called age-related macular degeneration (AMD), new research has revealed.

Researchers based at Moorfields Eye Hospital in London have found the drug, Bevacizumab (brand name Avastin) working better than alternative treatments.

However, the study's shortcoming is that it does not directly compare Bevacizumab with Ranibizumab, its main rival, The Guardian said in a report.

AMD is the leading cause of vision loss. It does not cause blindness, but over time it damages the middle of your vision, making it hard to see things that are straight in front of you.

Being superstitious brings luck ??

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As someone who strives – sanctimoniously – to be right, I'm a masochistic fan of research showing that people who are wrong have better lives than I do. This is why I particularly enjoyed a study from Psychological Science showing that being superstitious improves performance in a whole string of different tasks.

Now, I'm always a bit conflicted about this kind of psychology research. On my left shoulder is an angel who points out it's risky to extrapolate from laboratory conditions to the real world; that publication bias in this field (the phenomenon where uninteresting findings get left in a desk drawer unpublished forever) is probably considerable; and that it's uncommon to see a genuinely systematic review of the literature on these kinds of topics, bringing together all the conflicting research in one place. I am not Malcolm Gladwell, if that helps to frame the issue more clearly, and I think his books are a bit silly and overstated. On my right shoulder is a devil who thinks this stuff is all really cool and fun. He is typing right now.

The researchers did four miniature experiments. In the first, they took 28 students, more than 80% of whom said they believed in good luck, and randomly assigned them to either a superstition-activated or a control condition. Then they put them on a putting green. To activate a superstition, for half of them, when handing over the ball the experimenter said: "Here is your ball. So far it has turned out to be a lucky ball." For the other half, the experimenter just said: "This is the ball everyone has used so far." Each participant had 10 goes at trying to get a hole in one from a distance of 100cm (39in). And lo, the students playing with a "lucky ball" did significantly better than the others, with a mean score of 6.42, against 4.75 for the others.

Scientists unlock how 'freezing' to death can be reversed.

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Scientists have tried to unravel how some people who seemingly freeze to death, with no heart rate or respiration for extended periods, can be brought back to life with no long-term negative health consequences.

New findings from the lab of cell biologist Mark B. Roth, Fred Hutchinson Cancer Research Centre (FHCRC), may help explain the mechanics behind this widely documented phenomenon. Roth and colleagues show that two widely divergent model organisms, yeast and nematodes, can survive hypothermia, or potentially lethal cold, if they are first put into a state of suspended animation by means of anoxia or extreme oxygen deprivation. They found that under normal conditions, yeast and nematode embryos cannot survive extreme cold. After 24 hours of exposure to temperatures just above freezing, 99 per cent of the creatures die.

Conversely, if the organisms are first deprived of oxygen and thus enter a state of anoxia — induced suspended animation, 66 per cent of the yeast and 97 per cent of the nematode embryos will survive the cold.

For men it just take milliseconds to fall for attractive women.

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Blame it on their genes, but men take just a fraction of a second to judge a woman on her looks and whether she will be a potential partner or not.

They weigh up potential partners based on their appearance because their "ancient" genetic preference for attractive mates leads them to, experts claim.

According to research, men take a woman with an attractive face to be fertile and able to continue the family line, which appeals to the man's survival instinct.

On the other hand, women take longer to decide their feelings for a man because they need to weigh up whether he will be a committed partner who will provide for them well - part of their survival programming.

Professor Mark van Vugt and Dr Johanna van Hooff, from the University of Amsterdam, and postgraduate student Helen Crawford, from the University of Kent, were behind the study.