Ancient mystery of red hats on giant Easter Island statues solved

London, September 7 (ANI): A team of archaeologists has solved the ancient mystery of why the odd-looking statues on the Easter Island statues wear red hats.

Up to one thousand years ago, the islanders started putting giant red hats on the statues.

According to a report by BBC News, the research team, from the University of Manchester and University College London, believes that the hats were rolled down from an ancient volcano.

Dr Colin Richards and Dr Sue Hamilton are the first British archaeologists to work on the island since 1914. They pieced together a series of clues to discover how the statues got their red hats.

An axe, a road, and an ancient volcano led to their findings.

“We know the hats were rolled along the road made from a cement of compressed red scoria dust,” Dr Richards said.

Each hat, weighing several tonnes, was carved from volcanic rock. They were placed on the heads of the famous statues all around the coast of the island.

Precisely how and why the hats were attached is unknown.

An axe was found in pristine condition next to the hats. The scientists think it might be an ancient offering.

According to Dr Richards, “These hats run all the way down the side of the volcano into the valley. We can see they were carefully placed. The closer you get to the volcano, the greater the number.”

“It’s like a church; you can’t just walk straight to the altar,” he added.

“The Polynesians saw the landscape as a living thing, and after they carved the rock, the spirits entered the statues,” he said.

Dr Richards and Dr Hamilton will be working on the island over the next five years.

“We will look to date the earliest statues. Potentially this could rewrite Polynesian history, Dr Richards added. (ANI)

Birds can dance just as rhythmically as humans

Washington, May 1 (ANI): Humans aren’t the only ones who can groove to a beat, birds too can bob their heads, tap their feet and sway their bodies in time to music, a new research has found.

After studying a cockatoo that grooves to the Backstreet Boys and about 1,000 YouTube videos, researchers at Harvard University say they’ve documented for the first time that some animals “dance” to a musical beat.
The study was led by Adena Schachner, a doctoral candidate in psychology at Harvard, and is published in the current issue of Current Biology.

Schachner’s co-authors are Marc Hauser, professor of psychology at Harvard, Irene Pepperberg, lecturer at Harvard and adjunct associate professor of psychology at Brandeis University, and Timothy Brady, a doctoral candidate at the Massachusetts Institute of Technology.

Schachner and her colleagues closely studied Alex, a well-known African grey parrot who passed away shortly after the study, and Snowball, a sulphur-crested cockatoo whose humanlike dancing behavior had led to online fame.

“Our analyses showed that these birds’ movements were more lined up with the musical beat than we’d expect by chance,” says Schachner.

“We found strong evidence that they were synchronizing with the beat, something that has not been seen before in other species,” the expert added.

The researchers noted that these two birds had something in common: an excellent ability to mimic sound.

“It had recently been theorized that vocal mimicry might be related to the ability to move to a beat. The particular theory was that natural selection for vocal mimicry resulted in a brain mechanism that was also needed for moving to a beat. This theory made a really specific prediction: Only animals that can mimic sound should be able to keep a beat,” says Schachner.

To test this prediction, Schachner needed data from a large variety of animals-so she turned to a novel source of data, the YouTube video database. Schachner systematically searched the database for videos of animals moving with the beat of the music, including vocal mimics such as parrots and vocal non-mimics such as dogs and cats.

Schachner analyzed the videos frame-by-frame, using the same analyses applied to the case-study birds. Criteria included the animal’s speed compared to the speed of the music and alignment with individual beats. Potentially “fake” videos were omitted, where music was added to the video after the fact, or the animal was following visual movement.

“The really important point is that many animals showed really strong evidence of synchronizing with the music, but they were all vocal mimics. Most of them were parrots — we found 14 different species of parrot on YouTube that showed convincing evidence that they could keep a beat,” says Schachner.

Because only animals capable of vocal mimicry – such as parrots – appear to be able to keep a beat, the study implies an evolutionary link between vocal mimicry and this crucial part of dance. (ANI)

Dating service asks singles to wear badge identifying them as one

Melbourne, Apr 2 (ANI): A new dating service has asked singles to wear an identification badge stating their status.

Evan Diacopolous, 35, founded ‘Yes I Am Single’, a service that allows those looking for love to purchase a “singles identification badge” to let potential partners know they’re available and ready to mingle.

Diacopolous says that the badge, which has yis.com.au on it, – is a “subtle and unobtrusive tool” that will hopefully encourage other singles to make a move.

“It’s a sign saying, ‘Hey I’m single, I’m looking for romance, don’t be afraid to come up and talk to me,’ because the most attractive, gorgeous person could be single, and someone might be too scared to actually talk to them,” News.com.au quoted him as saying.

“This is a prompt for someone to pluck up the courage to approach them for a drink,” he said.

For a cost of 22.95 dollars singles get the badge plus access to online forums to join hobby groups, and organise social events like wine tasting or walking groups with other yis.com.au members.

“Lots of my friends are disgruntled with online dating. I’ve actually tried online dating myself and have found it quite expensive,” he said.

“Expectations are built up and up through a series of emails and photographs that might be ten years old, and then they meet someone in real life to find out they’re not what they envisaged. It can be all very anti-climactic, so I wanted to produce something that would allow people to meet the old-fashioned way,” he stated.

He said that people were often looked for partners in the wrong places, and that a bar was not one of the best environments.

“Potentially on the train, going to work, everyone’s pretty glum in the mornings. I think they’re probably waiting for someone to cheer up their day! Perhaps in the supermarket as well, at the beach, at church, on the ferry?” he said.

“The idea is that people can wear the badge at appropriate times to identify themselves as single. As the mood strikes them, they can take the badge on and off, say for 10 minutes when they go down to the supermarket,” he added. (ANI)

Kiwi PM prepared to stop Black Caps tour of Zimbabwe

Wellington (New Zealand), Feb.23 (ANI): New Zealand Prime Minister John Key has said that he is ready to halt the Black Caps tour of Zimbabwe.

The New Zealand cricket team are scheduled to play three one one-day internationals in the strife-torn African nation in July under the International Cricket Council’s (ICC) future tours programme.

The only way New Zealand Cricket (NZC) can avoid ICC sanctions is if Key orders the team not to tour.

According to stuff.co.nz, Key has previously stated his reluctance for the team to go and repeated that today on TV One’s Breakfast programme saying there were genuine security risks and health risks for the players.

Asked if he was prepared to step in Key said: “Potentially, yes”.

“There are some options that I am working through at the moment,” he added. (ANI)

Chemicals in liquid medicines may harm infants, says Indian-origin researcher

Washington, January 22 (ANI): Liquid medicines may harm tiny tots due to the presence of some non-drug ingredients in them, says an Indian-origin researcher.

Dr Hitesh Pandya, a senior lecturer at the University of Leicester, says that his study documents the chemicals present in such liquid medicines as are administered to premature infants as part of their medical care.

Published in the Fetal and Neonatal Edition of Archives of Disease in Childhood, his study has revealed that the chemicals added to medicines to improve their taste and absorption and to prolong their shelf-life could be potentially harmful to very small babies.

The chemicals generally used are ethanol, sorbitol and Ponceaau 4R (a colouring agent).

According to the researchers, premature babies are exposed to these potentially harmful chemicals in amounts equivalent to over three pints of beer per week.

“This study documents a worldwide problem. It shows that the collection of medicines given to babies may ultimately lead to them being exposed to harmful chemicals with the potential for short and long-term toxic effects.

Our research highlighted this, and we are planning further studies on the chemicals to understand exactly what these effects might be. What our study hasn’t done is find any direct evidence on the cause and effect of these chemicals and the medical problems that these babies might be being treated for,” Dr. Pandya said.

Dr Andrew Currie, Consultant at the University Hospitals of Leicester NHS Trust who was also part of the research team said: “Parents should not panic about these findings. These chemicals can be found in foods all around the world.

What the study highlighted is that we have a greater understanding of the side-effects of the drugs than we do of the chemicals that many of these drugs are mixed with; there just simply hasn’t been enough research done.

It is often necessary that these chemicals are added to medications, and in the majority of cases it improves the way the drugs work, but we should be taking more of an interest in them and their effects. It is great news that Dr Pandya and his team will continue their research.”

Dr Pandya added: “Babies and older children are often given medicines that have only received formal testing on adults, which means we estimate amounts that should be given to children and babies.

There are numerous reasons for this, such as the practical problems in performing studies in very small babies, worries their parents may have about involving their child in drug trials and drug manufacturer’s reluctance to tackle the problem. Our study showed that more work needs to be done to tackle this problem and to improve our understanding.”

He further said: “Both the UK Government and the European Union have recently passed legislation to incentivise drug companies to develop better medicines for children. Our research team is planning to engage with parents to talk about how they can be encouraged to allow their children to participate in drug trials.

We are also in close discussions with drug manufacturing companies about overcoming some of the practical hurdles that restrict performing drug trials in very small children. We are hopeful that this world-wide problem can be addressed for the benefit of future generations by highlighting the issue and through constructive engagement with interested parties.”

Dr Pandya concluded by saying: “Parents should begin to understand what chemicals are in the medicines being given to their children, but they should not be overly concerned. In many cases there may not be an alternative medicine, and the risk will be balanced in favour of using them in treatment.

As a research team we do feel it is important that the (medicines regulators) not only ensure that all manufacturers provide detailed labelling of the excipient content of their products but all lead action to determine whether existing practice constitutes a risk, and if so, how this might be dealt with.”

According to the researchers, children’s medicines have to cater for a wide age range, which makes it difficult for manufacturers to tailor their products for each age group.

The inclusion of some excipients is also a necessity, they say. (ANI)

Water pollution linked to male fertility problems

Washington, January 19 (ANI): A collaborative study has lent more force to the suggestion that water pollution is triggering male fertility problems.

The study involving researchers from Brunel University, the Universities of Exeter and Reading and the Centre for Ecology and Hydrology has revealed that a group of testosterone-blocking chemicals is finding its way into UK rivers, affecting wildlife and potentially humans.

Supported by the Natural Environment Research Council, the study has led to the identification of a new group of chemicals that act as ‘anti-androgens’, which means that they inhibit the function of the male hormone, testosterone, reducing male fertility.

Some of them, according to a research article published in the journal Environmental Health Perspectives, are contained in medicines, including cancer treatments, pharmaceutical treatments, and pesticides used in agriculture.

The researchers think that when these chemicals get into the water system, they may play a pivotal role in causing feminising effects in male fish.

Previous studies conducted by Brunel University and the University of Exeter scientists have already confirmed that female sex hormones (estrogens), and chemicals that mimic estrogens, are leading to ‘feminisation’ of male fish.

These chemicals are found in some industrial chemicals and the contraceptive pill, and enter rivers via sewage treatment works.

The researchers say that this causes reproductive problems by reducing fish breeding capability, and, in some cases, can lead to male fish changing sex.

A link between this phenomenon and the increase in human male fertility problems caused by testicular dysgenesis syndrome has also been suggested by several other studies.

However, scientists could not fully believe in the existence of any such link because the list of suspects causing effects in fish was limited to estrogenic chemicals, whilst testicular dysgenesis is known to be caused by exposure to a range of anti-androgens.

Lead author on the research paper, Dr Susan Jobling at Brunel University’s Institute for the Environment, said: “We have been working intensively in this field for over ten years.

The new research findings illustrate the complexities in unravelling chemical causation of adverse health effects in wildlife populations and re-open the possibility of a human – wildlife connection in which effects seen in wild fish and in humans are caused by similar combinations of chemicals.

We have identified a new group of chemicals in our study on fish, but do not know where they are coming from. A principal aim of our work is now to identify the source of these pollutants and work with regulators and relevant industry to test the effects of a mixture of these chemicals and the already known environmental estrogens and help protect environmental health.”

Senior author Professor Charles Tyler of the University of Exeter said: “Our research shows that a much wider range of chemicals than we previously thought is leading to hormone disruption in fish. This means that the pollutants causing these problems are likely to be coming from a wide variety of sources.

Our findings also strengthen the argument for the cocktail of chemicals in our water leading to hormone disruption in fish, and contributing to the rise in male reproductive problems. There are likely to be many reasons behind the rise in male fertility problems in humans, but these findings could reveal one, previously unknown, factor.”

The researchers are currently focusing on identifying the source of anti-androgenic chemicals, as well as continuing to study their impact on reproductive health in wildlife and humans.(ANI)

Lake Michigan may house ‘American Stonehenge’

Washington, Jan 9 (ANI): A team of archaeologists has discovered stones in a circular formation along with possible ancient carvings deep below the surface of Lake Michigan, similar to the Stonehenge site in England.

The iconic Stonehenge in the UK is one of the most famous prehistoric monuments in the world, but it has been found that it is not the only stone formation of its kind.

Similar stone alignments have been found throughout England, Ireland, Scotland, and Wales, and now, it seems, in Lake Michigan.

According to a report by NBC (National Broadcasting Corporation), in 2007, Mark Holley, professor of underwater archeology at Northwestern Michigan College, discovered a series of stones arranged in a circle 40 feet below the surface of Lake Michigan.

One stone outside the circle seems to have carvings that resemble a mastodon—an elephant-like animal that went extinct about 10,000 years ago.

Archaeologists had been hired to survey the Lake’s floor near Traverse City, Michigan, and examine old boat wrecks with a sonar device.

They discovered sunken boats and cars and even a Civil War-era pier. But among these expected finds was a potentially prehistoric surprise.

“When you see it in the water, you’re tempted to say this is absolutely real,” said Holley. “But that’s what we need the experts to come in and verify,” he added.

The formation, if authenticated, wouldn’t be completely out of place. Stone circles and other petroglyph sites are located in the area.

While Chicago has an interesting and colorful history of its own, it’s exciting to think that a North American version of Stonehenge could be sitting just over 200 miles away. (ANI)

Black raspberries can help prevent cancer

Washington, Jan 8 (ANI): Researchers at the Ohio State Comprehensive Cancer Center have revealed that a component of black raspberries can effectively help in cancer prevention.

They found that anthocyanins, a class of flavonoids in black raspberries, inhibited growth and stimulated apoptosis in the esophagus of rats treated with an esophageal carcinogen.

“Our data provide strong evidence that anthocyanins are important for cancer prevention,” said the study””s lead author, Gary D. Stoner, Ph.D., a professor in the department of internal medicine at Ohio State University.

During the study, the team led by Stoner fed rats an anthocyanin-rich extract of black raspberries and found that the extract was nearly as effective in preventing esophageal cancer in rats as whole black raspberries.

The researchers conducted clinical trials using whole berry powder, which has yielded some promising results, but required patients to take up to 60 grams of powder a day.

“Now that we know the anthocyanins in berries are almost as active as whole berries themselves, we hope to be able to prevent cancer in humans using a standardized mixture of anthocyanins,” said Stoner.

“The goal is to potentially replace whole berry powder with its active components and then figure out better ways to deliver these components to tissues, to increase their uptake and effectiveness.

“Ultimately, we hope to test the anthocyanins for effectiveness in multiple organ sites in humans,” he added. (ANI)

Rising sea levels could spark conflict over energy and food reserves

London, Jan 8 (ANI): The Australian military has claimed that rising sea levels caused by climate change are threatening to destabilize island nations and spark conflict across the world over energy and food reserves.

According to a report in the Telegraph, a report by the Australian military revealed that “environmental stress” had increased the risk of conflicts over food and resources in the region.

It predicted warmer temperatures would change the location of South East Asian fishing grounds, leading to conflict over fishing rights, and lead to an increase in climate refugees fleeing the Pacific’s sinking atolls.

Environmental changes would “reinforce existing concerns regarding land availability, economic development and control over resources”, the report added, multiplying the threats faced by fragile states and increasing the chance they would fail.

But, the biggest threat to global security was the melting Arctic ice caps, which would give rise to a potentially dangerous international race for valuable sea oil and gas deposits, the report said.

“The Arctic is melting, potentially making the extraction of undersea energy deposits commercially viable. Conflict is a remote possibility if these disputes are not resolved peacefully,” it added.

Climate change has already been linked to the escalating fight for the world’s natural resources, including an increasingly precious commodity – dry land.

In November 2008, the newly elected president of the Maldives announced his country would begin to set aside a portion of its billion-dollar annual tourist revenue to buy a new homeland because rising seas were threatening to turn the 300,000 islanders into environmental refugees.

Also, resource-hungry nations are already snapping up large tracts of agricultural land in poor Asian and African nations.

High global oil and commodity prices, the biofuels boom and the economic downturn are prompting import-reliant countries to take action to protect their sources of food.

China and South Korea, which are both short on arable land, have signed up the rights to swathes of territory in Asia and Africa.

The report, into the effects of climate change by Australia’s Defence Force, predicted that disputes over access to scarce food resources could mean increasing the country”s navy in the seas to its north.

It added that climate change would “increase demands for the Australian Defence Force to be deployed on additional stabilization, post-conflict reconstruction and disaster relief operations in the future”. (ANI)

Antidepressants pose risks to cosmetic surgery patients

Washington, Jan 6 (ANI): A research team from New York has found that using common antidepressants and herbal medications may have potentially harmful intraoperative effects on patients undergoing cosmetic surgical procedures.

The researchers conducted and reviewed case studies regarding the effects of the 29 most commonly used herbs and antidepressants, on anesthesia and surgery.

They identified a number of harmful, intraoperative risks, ranging from increased bleeding to fatal interactions.

The researchers have established recommendations for the management of these medications before elective surgery.

They suggest that patients using those antidepressants and herbs noted in the study consult with the prescribing physician about discontinuing use for up to two weeks prior to surgery.

This study appears in the January 2009 issue of Plastic and Reconstructive Surgery. (ANI)

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Offsprings inherit disease clues from mums

Washington, Jan 6 (ANI): Researchers at The University of Nottingham have found that expecting mothers produce less aggressive sons with more efficient immune systems, when there is a threat of disease during pregnancy.

This study is the first of its kind to have revealed the transgenerational effect on immune response based on environmental cues — with maternal perception of disease risk in the immediate environment potentially determining offspring disease resistance and social dominance.

For the study, pregnant female mice were housed next to males infected with Babesia microti, which is a mild blood parasite causing few symptoms, but some anaemia.

The partitioned cages allowed the females to see, hear and smell their infected neighbours, but not touch them, ensuring that the disease did not spread.

Researchers then measured the effect of these ‘ambient cues’ on maternal physiology and behaviour, along with the social behaviour and immune response to disease challenge in the adult offspring.

The dams (female mice that had given birth) were found to have increased blood serum levels of corticosterone (a stress hormone known to have effects on foetal and new-born development) after being housed next to the infected males — double the amount found in dams housed next to a control group of males that were not infected.

The offspring of the dams exposed to infected neighbours were significantly less aggressive as adults than the control group offspring.

In the final part of the experiment, all offspring were infected with B microti to see if the ambient exposure affected their immunity.

The offspring, which had developed in the diseased environment, showed an earlier onset, peak and clearance of the infection than the offspring from the control dams.

The new study supports the existence of a ‘trade off’ between social dominance and disease resistance.

“It seems that the mothers in our study are priming offspring for the environment they will live in. When the risk of disease is high, improved immunity may outweigh any costs associated with reduced social dominance.” said Dr Olivia Curno, who led the research.

The study is published in Proceedings of the Royal Society B, the Royal Society’s flagship biological research journal. (ANI)

Hamilton faces gay discrimination allegations

London, Jan.5 (ANI): Formula One champ Lewis Hamilton fears being dragged into a tribunal hearing over gay discrimination allegations.

According to the Daily Star, Lewis could be called to give evidence at the potentially explosive ten-day hearing, which starts tomorrow.

It involves bombshell claims from the personal private jet steward to Ron Dennis – Lewis’s McLaren team boss – that he was unfairly sacked over unfounded rumours that he is homosexual.

Peter Boland, 27, told an initial hearing last year in Southampton that relations with Dennis broke down after the claims were circulated among colleagues. (ANI)

Gulf of Maine identified as new breeding ground for endangered whales

Washington, Jan 5 (ANI): A team of scientists has claimed to have identified the Gulf of Maine in the US as a wintering ground and potentially a new breeding ground for a group of endangered whales.

Researchers at NOAA’s Northeast Fisheries Science Center have identified this new breeding ground, after reports that a large number of North Atlantic right whales have been seen in the Gulf of Maine in recent days.

The NEFSC’s aerial survey team saw 44 individual right whales on December 3rd in the Jordan Basin area, located about 70 miles south of Bar Harbor, Maine.

Weather permitting, the team regularly surveys the waters from Maine to Long Island and offshore 150 miles to the Hague Line (the U.S.-Canadian border), an area about 25,000 square nautical miles.

“We’re excited because seeing 44 right whales together in the Gulf of Maine is a record for the winter months, when daily observations of three to five animals are much more common,” said Tim Cole, who heads the team.

“Right whales are baleen whales, and in the winter spend a lot of time diving for food deep in the water column. Seeing so many of them at the surface when we are flying over an area is a bit of luck,” he added.

On December 14th, the team saw 41 right whales just west of Jordan Basin.

An estimated 100 female North Atlantic right whales head south in winter to give birth in the waters off Florida and Georgia, but little is known about where other individual right whales in the population go in winter, largely due to difficult surveying conditions.

Given the large geographical area over which North Atlantic right whales can occur, Cole and NEFSC colleagues developed an aerial grid system a few years ago for the Gulf of Maine and waters around Cape Cod to ensure complete coverage of the region.

The grid resulted in consistent surveys of areas infrequently surveyed in the past, like Jordan Basin and the Great South Channel, and have shown that whales congregate in certain areas at certain times.

With a population estimated to be about 325 whales, knowing where the whales are at any time is critical to protect them.

Finding an aggregation of whales can trigger a management action affording protection, such as slowing ship speeds in the vicinity of the whales. (ANI)

Fake drugs made by Chinese counterfeiting gangs flood Britain

London, Jan 4 (ANI): Counterfeiting gangs based in China are producing sophisticated copies of the world’s best selling pharmaceuticals and in 2008 an estimated eight million of these deadly pills found their way to NHS patients in Britain, risking health of millions of people.

They were made in China, labelled in French and then shipped to Singapore. They ended up in Liverpool and from there were sold straight into the heart of the NHS, The Observer reported.

As the criminal investigation continues into how a fake consignment of Zyprexa, an anti-psychotic treatment prescribed for schizophrenia, infiltrated Britain’s healthcare system last year, evidence is mounting that sophisticated counterfeiting syndicates are increasingly targeting Britain’s network of high-street chemists, hospitals and GP surgeries.

Figures collated for the first time reveal that British border officials seized more than half a million counterfeit pills destined for the NHS and high-street chemists last year, an amount equal to the quantity of counterfeit drugs found in the whole of Europe in 2005.

So vast is the scale of the threat from fake medicines that public confidence in the NHS could be “completely undermined”, according to legal experts. Health officials also warn that the health of millions of Britons is potentially at risk, the paper said.

Customs officials and the Home Office border agency intercepted more than three million pounds of fake life-saving medicines for ailments such as heart disease and cancer in the first 10 months of 2008. Three consignments were each larger than 100,000 pills.

Latest government intelligence indicates that criminal gangs operating largely out of China have shifted away from selling fake “lifestyle” drugs such as Viagra on the Internet and are now concentrating on supplying counterfeit life-saving medicines to the NHS, The Observer reported.

Profits are potentially greater, with the high price of medicines in the UK ensuring that it has emerged as a prime target for criminals, according to the government agency that oversees the safety of medicines, the Medicines and Healthcare Products Regulatory Agency. (ANI)

Molecular imaging may alter management of over one-third thyroid cancer patients

Washington, January 3 (ANI): German researchers have for the first time been able to accurately distinguish between cancerous cells in regional lymph nodes and normal residual thyroid tissue directly after surgery.

Researchers at the University of Erlangen-Nürnberg have revealed that they achieved this breakthrough while studying the diagnostic value of molecular imaging in nodal staging of patients with thyroid cancer.

Describing their work in an article in The Journal of Nuclear Medicine, the researchers said that they used a hybrid single photon emission computed tomography-computed tomography (SPECT-CT) camera to determine and locate the spread of cancer cells to nearby lymph nodes.

According to them, the demonstration or exclusion of cancer spread (metastasis) in regional lymph nodes plays a major role in treating the disease since all patients with lymph node metastases are considered to be at high risk for recurrence.

During the study, the researchers administered radioiodine therapy to 57 patients, and, afterwards, a SPECT-CT camera was rotated around the patients at a variety of angles to capture where the radioactivity was occurring.

SPECT imaging can locate cells in the body that are not behaving normally, but does not provide the detailed, X-ray-like images that CT imaging can.

However, the hybrid camera used in the study was able to reveal both the malignant cell activity and the exact anatomical location.

“With SPECT-CT imaging, we were able to determine tumour spread much earlier than before. Earlier detection will lead to earlier individualized treatment of this potentially deadly cancer,” said Dr. Daniela Schmidt, a co-author of the article.

According to the research team, this information led to a revision of the original diagnosis in 35 percent of the study participants. The images reclassified as benign six of 11 lesions that had been considered lymph node metastases and 11 of 15 lesions considered to be indeterminate.

“Our data suggest that SPECT-CT should be used as a routine procedure in DTC patients at the first radioiodine treatment. By upstaging or downstaging disease, this hybrid imaging tool may alter the management of more than one-third of patients with the disease,” said Dr. Torsten Kuwert, another co-author. (ANI)

Genes give Africans better sense of taste than Europeans and Asians

London, January 3 (ANI): A team of American scientists suggests that genes give Africans a better sense of tastes than Europeans and Asians.

The researchers say that studies have shown that Africans are better than Europeans and Asians at sensing bitter tastes, and surveys conducted in Kenya and Cameroon suggest that this may be due to a striking amount of diversity in a gene.

“If they have more genetic diversity, there””s more variation in their ability to taste,” New Scientist magazine quoted Sarah Tishkoff, a geneticist at the University of Pennsylvania in Philadelphia, as saying.

While presenting the findings at a recent conference, Sarah revealed that Europeans and Asians typically have only one of two forms of a gene called TAS2R38, which detects a bitter-tasting compound called PTC and similar chemicals in vegetables such as broccoli and Brussels sprouts.

With a view to finding out how Africans sense tastes, Sarah and her colleague Michael Campbell offered a wide range of dilutions of PTC to different populations of pastoralists and hunter-gatherers in Kenya and Cameroon.

“They keep tasting it until they make a yucky face and spit it out,” she said.

The researchers observed that both Kenyan and Cameroonian populations could sense subtler gradients in the concentration than Europeans.

They also found that the Africans”” TAS2R38 genes contained far more variation than is found in the rest of the world.

According to them, this could be because heterogeneity offered an evolutionary benefit to populations of Africans at some point in history.

“Maybe it was because there were certain plants that were beneficial to eat, but they were also bitter,” Sarah said.

However, avoiding potentially toxic plants might not be the only reason for diversity in bitter taste genes, says Theodore Schurr, an anthropologist at the University of Pennsylvania, who was not involved in the study.

His team has found lots of variation in bitter taste genes in a Siberian population that has historically eaten few vegetables.

“We””re surprised at the amount of diversity we see there. We””re trying to figure out what this means,” he says. (ANI)

Michael Jackson Suffering From Potentially Fatal Health Issues

Michael Jackson Suffering From Potentially Fatal Health IssuesMichael Jackson is reportedly in desperate need of an emergency transplant operation to save his life from a rare lung condition, according to the author of a new biography of the singer.

Best-selling author Ian Halperin has completed a book about Jackson’s life, which claims that the pop icon, 50, suffers from Alpha-1 antitrypsin deficiency, a potentially fatal genetic illness, as well as emphysema and gastrointestinal bleeding.

“He’s had it for years, but it’s gotten worse,” Halperin told In Touch magazine. “He needs a lung transplant but may be too weak to go through with it … [But] it’s the [gastrointestinal] bleeding that is the most problematic part. It could kill him.”

Halperin also claims that the “Thriller” and “Bad” singer can barely speak and is 95-percent blind in his left eye.

Earlier this year, Jackson was photographed in a wheelchair. A few weeks ago, he was spotted receiving help walking, while wearing a Zorro style mask.

Michael Jackson

Why schizophrenics have abnormal electrical waves in their brains

Why schizophrenics have abnormal electrical waves in their brainsLondon, Newcastle University scientists have found out what leads to the abnormal electrical waves in the brains of schizophrenia patients.

The researchers say that schizophrenics lack the vital brain receptor cells that control them.

They made this discovery when they used a drug, called ketamine, for switching off the receptors in rats, the waves changed frequency.

The scientists believe that the new work could pave the way for new treatments.

According to an expert, the study has provided one of the first evidence of what might actually be going on to produce changes in electrical activity in the brain in people with schizophrenia

Earlier, when researchers looked at the differences between the brain function of people with and without schizophrenia, they found the “gamma frequency oscillation”, a pattern of electrical activity, in schizophrenics

With an aim to find the cause of this alteration, scientists used ketamine, which when applied to rat brain cells, changed the frequency of its electrical activity by blocking the NMDA brain receptor.

Ketamine is a recreational drug in humans, and has been known to cause some of the symptoms of schizophrenia, including hallucinations.

Thus, they concluded that people with schizophrenia either lack enough of these receptors, or they are just not working properly.

“We have shown that by selectively targeting receptors we can modify the dynamics of the brain,” the BBC quoted Dr Mark Cunningham, who led the research, as saying.

He added: “Our hope would be that in the long term this could lead to a method for actually improving brain function, not only for people with schizophrenia, but potentially for many other brain conditions.”

The study has been published in the Proceedings of the National Academy of Sciences journal. (ANI)