Swine flu may be human error; WHO investigates claim

 May 13 (Bloomberg) -- The World Health Organization is investigating a claim by an Australian researcher that the swine flu virus circling the globe may have been created as a result of human error.

Adrian Gibbs, 75, who collaborated on research that led to the development of Roche Holding AG's Tamiflu drug, said in an interview that he intends to publish a report suggesting the new strain may have accidentally evolved in eggs scientists use to grow viruses and drugmakers use to make vaccines. Gibbs said he came to his conclusion as part of an effort to trace the virus's origins by analyzing its genetic blueprint.

“One of the simplest explanations is that it's a laboratory escape,” Gibbs said in an interview with Bloomberg Television today. “But there are lots of others.”

The World Health Organization received the study last weekend and is reviewing it, Keiji Fukuda, the agency's assistant director-general of health security and environment, said in an interview May 11. Gibbs, who has studied germ evolution for four decades, is one of the first scientists to analyze the genetic makeup of the virus that was identified three weeks ago in Mexico and threatens to touch off the first flu pandemic since 1968.

A virus that resulted from lab experimentation or vaccine production may indicate a greater need for security, Fukuda said. By pinpointing the source of the virus, scientists also may better understand the microbe's potential for spreading and causing illness, Gibbs said.

Possible Mistake

“The sooner we get to grips with where it's come from, the safer things might become,” Gibbs said by phone from Canberra yesterday. “It could be a mistake” that occurred at a vaccine production facility or the virus could have jumped from a pig to another mammal or a bird before reaching humans, he said.

Gibbs and two colleagues analyzed the publicly available sequences of hundreds of amino acids coded by each of the flu virus's eight genes. He said he aims to submit his three-page paper today for publication in a medical journal.

“You really want a very sober assessment” of the science behind the claim, Fukuda said May 11 at the WHO's Geneva headquarters.

The U.S. Centers for Disease Control and Prevention in Atlanta has received the report and has decided there is no evidence to support Gibbs's conclusion, said Nancy Cox, director of the agency's influenza division. She said since researchers don't have samples of swine flu viruses from South America and Africa, where the new strain may have evolved, those regions can't be ruled out as natural sources for the new flu.

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When is a green activist glad to see 680,000 barrels of oil?

It was meant to be a carbon-neutral adventure to fire the imaginations of 25,000 schoolchildren.

Raoul Surcouf, 40, a landscape gardener from Jersey, and Richard Spink, 32, a physiotherapist from Bristol, shunned the polluting aircraft normally used to reach Greenland's polar ice cap and set sail in Fleur, a 40ft yacht fitted with solar panels and a wind turbine. Schools were poised to follow their green expedition online; once the duo had skied across the Arctic wastes they had hoped to boast of the first carbon-neutral crossing of Greenland.

On Friday, nature, displaying a heavy irony, intervened. After a battering by hurricane force winds, the crew of the Carbon Neutral Expeditions craft had to be rescued 400 miles off Ireland.

As if their ordeal wasn't terrifying enough, their saviour seemed chosen to rub salt in their wounds: a 113,000-ton tanker, Overseas Yellowstone, carrying 680,000 barrels of crude. In a statement from the tanker, Spink said: "We experienced some of the harshest conditions known, with winds gusting hurricane force 12 ... The decision was made that the risk to our personal safety was too great to continue."

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American Stonehenge: Monumental instructions for the Post-Apocalypse

The strangest monument in America looms over a barren knoll in northeastern Georgia. Five massive slabs of polished granite rise out of the earth in a star pattern. The rocks are each 16 feet tall, with four of them weighing more than 20 tons apiece. Together they support a 25,000-pound capstone. Approaching the edifice, it's hard not to think immediately of England's Stonehenge or possibly the ominous monolith from 2001: A Space Odyssey. Built in 1980, these pale gray rocks are quietly awaiting the end of the world as we know it.

Called the Georgia Guidestones, the monument is a mystery—nobody knows exactly who commissioned it or why. The only clues to its origin are on a nearby plaque on the ground—which gives the dimensions and explains a series of intricate notches and holes that correspond to the movements of the sun and stars—and the "guides" themselves, directives carved into the rocks. These instructions appear in eight languages ranging from English to Swahili and reflect a peculiar New Age ideology. Some are vaguely eugenic (guide reproduction wisely—improving fitness and diversity); others prescribe standard-issue hippie mysticism (prize truth—beauty—love—seeking harmony with the infinite).

What's most widely agreed upon—based on the evidence available—is that the Guidestones are meant to instruct the dazed survivors of some impending apocalypse as they attempt to reconstitute civilization. Not everyone is comfortable with this notion. A few days before I visited, the stones had been splattered with polyurethane and spray-painted with graffiti, including slogans like "Death to the new world order." This defacement was the first serious act of vandalism in the Guidestones' history, but it was hardly the first objection to their existence. In fact, for more than three decades this uncanny structure in the heart of the Bible Belt has been generating responses that range from enchantment to horror. Supporters (notable among them Yoko Ono) have praised the messages as a stirring call to rational thinking, akin to Thomas Paine's The Age of Reason. Opponents have attacked them as the Ten Commandments of the Antichrist.

Whoever the anonymous architects of the Guidestones were, they knew what they were doing: The monument is a highly engineered structure that flawlessly tracks the sun. It also manages to engender endless fascination, thanks to a carefully orchestrated aura of mystery. And the stones have attracted plenty of devotees to defend against folks who would like them destroyed. Clearly, whoever had the monument placed here understood one thing very well: People prize what they don't understand at least as much as what they do.

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Epigenetics: 'The most surprising thing about this revolutionary field...is that no one is talking about it yet'

From Epigenetics: A Revolutionary Look at How Humans Work

It is something called the epigenome that keeps us from "having a long tail and a snout," said Randy Jirtle, an epigenetics research pioneer at Duke University in North Carolina.

Epigenome literally means "above the genome." It is a molecular marking system that controls gene expression without altering the DNA sequence. In a sense, the epigenome is the genome's boss.

In the initial weeks after an egg is fertilized — when its cells are rapidly multiplying and developing into something like a full-fledged body — the epigenome acts as an overbearing micro-manager. Each new cell has identical DNA, but the epigenome orders some cells to work as, say, skin cells and others to become neurons.

New view

It was once thought this nitpicking backed off after birth, except for a brief resurgence around puberty. But recently scientists have realized the boss is always watching —taking stock of not only the genome but the world at large.

"The fascinating thing about it is that the epigenome is the mediator between the genes and the environment," said Liang Liu, a researcher at the University of Alabama at Birmingham

Food, pollution, toxic chemicals (such as those found in hard clear plastics), drugs, stress, even exercise and social interaction can all affect the epigenome and alter its attitude towards DNA, Liu said.

Sometimes, the epigenome responds to environmental cues by asking a gene, via a charged molecular messenger, either to start working or to work harder. For example, experiments by Michael Meaney and colleagues at McGill University have shown that when rat mothers are affectionate to their young, the baby's epigenome promotes a gene that helps the pup remain calm even in stressful situations. (Conversely, neglected rat pups grow up observably anxious.)

Other times, the epigenome demotes a gene. Many cancers, in fact, involve an irrational epigenetic firing of the gene that fights off tumors. The delivery of a molecular pink slip — often a methyl group — to the gene spurs a tight recoiling of the DNA spiral. The contraction makes it harder, or impossible, for transcription factors to interact with the gene — like stripping an employee of her Blackberry, computer and contact list.

Wishy-washy

The epigenome, however, is occasionally a wishy-washy supervisor. In some cases, epigenomic "decisions" can be reversed, Jirtle said.

Many medical treatments, Grayson said, such as those being developed for cancer and schizophrenia, try to coax the epigenome into changing its mind. Similarly, healthy nutrition and lifestyle choices can positively sway gene expression. "Food is truly medicine when you are talking about epigenetic changes," Jirtle said.


From New nucleotide could revolutionize epigenetics

The discovery of a new nucleotide in the mouse brain opens the door to a new domain of epigenetic DNA modification

Anyone who studied a little genetics in high school has heard of adenine, thymine, guanine and cytosine – the A,T,G and C that make up the DNA code. But those are not the whole story.

The rise of epigenetics in the past decade has drawn attention to a fifth nucleotide, 5-methylcytosine (5-mC), that sometimes replaces cytosine in the famous DNA double helix to regulate which genes are expressed. And now there's a sixth. In experiments to be published online Thursday by Science, researchers reveal an additional character in the mammalian DNA code, opening an entirely new front in epigenetic research.

The work, conducted in Nathaniel Heintz's Laboratory of Molecular Biology at The Rockefeller University, suggests that a new layer of complexity exists between our basic genetic blueprints and the creatures that grow out of them. "This is another mechanism for regulation of gene expression and nuclear structure that no one has had any insight into," says Heintz, who is also a Howard Hughes Medical Institute investigator. "The results are discrete and crystalline and clear; there is no uncertainty. I think this finding will electrify the field of epigenetics."

Genes alone cannot explain the vast differences in complexity among worms, mice, monkeys and humans, all of which have roughly the same amount of genetic material. Scientists have found that these differences arise in part from the dynamic regulation of gene expression rather than the genes themselves. Epigenetics, a relatively young and very hot field in biology, is the study of nongenetic factors that manage this regulation.


From Tough steak blamed on cows with human genes

Scientists will investigate ways to switch off a human gene that is thought to cause temperamental behaviour in both cows and humans in a new $1.35 million primary industries research project.

Primary Industries Minister Tim Mulherin, who announced the project ahead of the Australia's National Beef Expo 2009 in Rockhampton, says the new ground-breaking discovery could change the quality of beef.

"The genes thought to cause behavioural problems in humans are also found in cattle,'' Mr Mulherin said.

"We already know there is an association between the temperament of cattle and the tenderness of the meat, the more temperamental, the less tender.

"So if our scientists can learn how to switch off the gene that causes irritability in cattle then we can produce more tender meat which has a higher value to industry.''

Other factors to boost beef profits include annual calving and cows calving earlier in the season, which could lead to heavier offspring, he said.

Research leader, scientist Brian Burns, said the project focused on a new field of epigenetics, the study of modifications to genes other than changes in the DNA sequence itself.


From An intrusion of matriarchal consciousness

Right now a revolutionary paradigm shift is undergoing in the science of genetics. It is called epigenetics. The term "epigenetic" refers to heritable traits that do not involve changes to the DNA sequence. The DNA sequence is only part of the genome. The rest, which was earlier viewed as redundant rubbish, is now termed epigenome. Some epigenetic features are inherited from one generation to the next. Multigenerational epigenetics is today regarded as another aspect to evolution and adaptation. An example of this is the paramutation observed in maize. In humans, epigenetic changes have been observed to occur in response to environmental exposure, that is, a sort of Lamarckian inheritance (vid. Pembrey et al. 2006).

This is a most remarkable turnover in favour of depth-psychology, Sigmund Freud and Carl Jung. Despite the controversy over his ideas, Freud refused to cede with his "Lamarckian" notions. Carl Jung also received much critique for his idea that the collective unconscious has acquired traits over the millennia. Genetics has been regarded a much slower process. For instance, in Jung, an important argument is that man's experiences during medieval time affect us strongly today, and is the foundation on which we stand as modern people. The medieval world, and classical antiquity, is part of our unconscious. However, other ethnic groups, such as African tribes, lack this layer, says Jung. Other people still, such as the Chinese, have a different configuration of the collective unconscious, although the foundational layer is the same for all people on earth. The cultural forging of our unconscious nature is crucial to Jung's theory of archetypes.

The young science of epigenetics would be able to corroborate such notions. Not only climatological, epidemic, and nutritive experiences can be transferred to coming generations. Culture is the most fundamental force that has shaped man's life through the aeons. Its effect is, in all likelihood, established in the genome in a few generations.

...The even greater surprise is the recent discovery that epigenetic signals from the environment can be passed on from one generation to the next, sometimes for several generations, without changing a single gene sequence. It's well established, of course, that environmental effects like radiation, which alter the genetic sequences in a sex cell's DNA, can leave a mark on subsequent generations. Likewise, it's known that the environment in a mother's womb can alter the development of a fetus. What's eye-opening is a growing body of evidence suggesting that the epigenetic changes wrought by one's diet, behavior, or surroundings can work their way into the germ line and echo far into the future. Put simply, and as bizarre as it may sound, what you eat or smoke today could affect the health and behavior of your great-grandchildren (Discover magazine, here).

The concept implies that genes have a 'memory'; what you do in your lifetime, and what you are exposed to, could in turn affect your grandchildren. Epigenetics proposes a control system of 'switches' that turn genes on or off. The things that people experience, like nutrition and stress, can control these switches and cause heritable effects in humans. The switches themselves can also be inherited. This means that a 'memory' of an event could be passed through generations. A simple environmental effect could switch genes on or off, and this change could be inherited.

According to the above article in Discover magazine (here) "...the epigenome can change in response to the environment throughout an individual's lifetime." Hence, I propose that culture is very likely to play a role. The notion that factors of epigenetics could determine a person toward the animation of certain archetypes is consonant with this. I hypothesize that the individual could become more warlike in cultures which have historically been involved in conflict.

The article continues:

...Remarkably, the mother's licking activity had the effect of removing dimmer switches on a gene that shapes stress receptors in the pup's growing brain. The well-licked rats had better-developed hippocampi and released less of the stress hormone cortisol, making them calmer when startled. In contrast, the neglected pups released much more cortisol, had less-developed hippocampi, and reacted nervously when startled or in new surroundings. Through a simple maternal behavior, these mother rats were literally shaping the brains of their offspring (ibid).

Apparently, the psyche of the rat is altered by an epigenetic switch, which can be turned on at will by the mother. In light of this, it's not far-fetched to propose that certain ethnicities, partly due to epigenetic factors, can become more heroic and ambitious, while others will tend toward the matriarchal spectrum.

Creative minds: the links between mental illness and creativity

At first glance, Einstein, Salvador Dali, Tony Hancock, and Beach Boy Brian Wilson would seem to have little in common. Their areas of physics, modern art, comedy, and rock music, are light years apart. So what, if anything, could possibly link minds that gave the world the theory of relativity, great surreal art, iconic comedy, and songs about surfing?

According to new research, psychosis could be the answer. Creative minds in all kinds of areas, from science to poetry, and mathematics to humour, may have traits associated with psychosis. Such traits may allow the unusual and sometimes bizarre thought processes associated with mental illness to fuel creativity. The theory is based on the idea that there is no clear dividing line between the healthy and the mentally ill. Rather, there is a continuum, with some people having psychotic traits without having the debilitating symptoms.

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It's now increasingly being argued that there are survival advantages to others forms of illness, too, because of the links between the traits associated with them and creativity. "It can be difficult for people to reconcile mental illness with the idea that traits may not be disabling. While people accept that there are health benefits to anxiety, they are more wary of schizophrenia and manic depression," says Professor Gordon Claridge, emeritus professor of abnormal psychology at Oxford University, who has edited a special edition of the journal Personality and Individual Differences, looking at the links between mental illness and creativity. "There is now a feeling that these traits have survived because they have some adaptive value. To be mildly manic depressive or mildly schizophrenic brings a flexibility of thought, an openness, and risk-taking behaviour, which does have some adaptive value in creativity. The price paid for having those traits is that some will have mental illness."

Research is providing support for the idea that creative people are more likely to have traits associated with mental illness. One study found that the incidence of mood disorders, suicide and institutionalisation to be 20 times higher among major British and Irish poets in the 200 years up to 1800. Other studies have shown that psychiatric patients perform better in tests of abstract thinking. Another study, based on 291 eminent and creative men in different fields, found that 69 per cent had a mental disorder of some kind. Scientists were the least affected, while artists and writers had increased diagnoses of psychosis.

"Most theorists agree that it is not the full-blown illness itself, but the milder forms of psychosis that are at the root of the association between creativity and madness," says Emilie Glazer, experimental psychologist and author of one of the Oxford journal papers. "The underlying traits linked with mild psychopathology enhance creative ability. In severe form, they are debilitating."

Research is also showing that traits associated with different mental illnesses have different effects on creativity. The creativity needed to develop the theory of relativity, is, for example, very different from that required for producing surreal paintings, or poetry.

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