Investors offer about $38.8 billion euros in Greek debt buyback: source

ATHENS (Reuters) – Greece is set to purchase back about half of its debt owned by private investors, broadly succeeding in a bond buyback that is key to the country’s international bailout, a Greek government official said on Saturday.

Greek and foreign bondholders offered the targeted 30 billion euros ($ 38.8 billion) in the deal, which is central to efforts by Greece’s euro zone and International Monetary Fund lenders to cut its debt to manageable levels.

“The buyback went well in broad terms. The amount offered by investors was within the range expected, about 30 billion euros,” the official told Reuters on condition of anonymity. He did not provide more details.

No formal announcement is expected before Monday, another official told Reuters.

The buyback accounts for about half of a broader, 40-billion euro EU/IMF debt relief package for Athens agreed in November. The package broadly doubles the average maturity of its rescue loans to almost 30 years and cuts its interest rates by one percentage point to a level far below 1 percent.

Under its terms, Athens will spend up to 10 billion euros of borrowed money to buy back bonds with a nominal value of about 30 billion euros. This is nearly half the 63 billion euros of Greek debt held by private investors eligible for the plan.

Since the bonds are to be bought far below their nominal value, the country’s net debt burden would fall by about 20 billion euros.

A successful buyback will ensure that the IMF, which contributes about a third of Greece’s bailout loans, will stay on board of the rescue. It would also unlock the payment of 34.4 billion euros of aid later this month.

Athens badly needs that money to refloat its ailing economy by replenishing the capital of its cash-strapped banks and settle arrears with government suppliers.

The EU and the IMF have been withholding rescue payments to Greece for six months because it had fallen short of promises to shore up its finances, privatize and make its economy more competitive.

Athens has received 148.6 billion euros in EU/IMF funds since May 2010. It stands to get almost 90 billion euros more by the end of 2014.

But the rescue comes at a heavy price. Austerity measures taken in exchange for aid have plunged the country into economic depression. Unemployment hit a record 26 percent in September, the highest in the euro zone.

The economy is going through its fifth consecutive year of recession and is expected to have shrunk by 24 percent when recovery begins in 2014.

GREEK BANKS ON BOARD

The buyback was expected to go well after Greek banks, which hold about 17 billion euros of bonds, announced shortly before a Friday deadline they would take part. Two Cypriot lenders also said they would offer their bonds.

Foreign investors have offered between 15 and 16 billion euros worth of bonds, Greek newspapers reported on Saturday, citing initial estimates without saying how they got them.

Athens’ hopes of drawing enough investors to the scheme grew after it announced better-than-expected terms on Monday, with price ranges at a premium over market prices.

The price range varied from a minimum of 30.2 to 38.1 percent and a maximum of 32.2 to 40.1 percent of the principal amount, depending on the maturities of the 20 series of outstanding bonds.

Hedge funds, which bought the debt at rock-bottom prices when it was feared the country would exit the euro, are estimated to hold a large part of Greek debt and the offer was seen as good enough to make them a nice profit.

“Athens put forth a reasonable if not generous offer for hedge funds to participate,” Sassan Ghahramani, CEO at New York-based Macro Advisers, a hedge fund consultancy, said on Friday.

“I expect there will be strong participation from hedge funds, tendering a substantial portion of their Greek bond holdings,” he said.

The government also enticed Greek bankers by offering to protect them from possible shareholder lawsuits stemming from the buyback.

Greek bankers had been reluctant to take part, in the fear they would book losses on top of the ones they incurred earlier this year when Athens enforced a debt cut on its bondholders.

But the lenders were nevertheless expected to participate because they depend on the bailout funds that Athens stands to receive if its bailout continues smoothly.

($ 1 = 0.7735 euros)

(Writing by Harry Papachristou; editing by James Jukwey)

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Anger at Australian radio station over royal hoax

LONDON (AP) — It started out as a joke, but ended in tragedy.

The sudden death of a nurse who unwittingly accepted a prank call to a London hospital about Prince William‘s pregnant wife Kate has shocked Britain and Australia, and sparked an angry backlash Saturday from some who argue the DJs who carried out the hoax should be held responsible.

At first, the call by two irreverent Australian DJs posing as royals was picked up by news outlets around the world as an amusing anecdote about the royal pregnancy. Some complained about the invasion of privacy, the hospital was embarrassed, and the radio presenters sheepishly apologized.

But the prank took a dark twist Friday with the death of nurse Jacintha Saldanha, a 46-year-old mother of two, three days after she took the hoax call. Police have not yet determined Saldanha‘s cause of death, but people from London to Sydney have been making the assumption that she died because of stress from the call.

King Edward VII’s Hospital, where the former Kate Middleton was being treated for acute morning sickness this week, wrote a strongly-worded letter to the 2DayFM radio station’s parent company Southern Cross Austereo, condemning the “truly appalling” hoax and urging it to take steps to ensure such an incident would never happen again.

“The immediate consequence of these premeditated and ill-considered actions was the humiliation of two dedicated and caring nurses who were simply doing their job tending to their patients,” the letter read. “The longer term consequence has been reported around the world and is, frankly, tragic beyond words.”

The hospital did not comment when asked whether it believed the prank call had directly caused Saldanha’s death, only saying that the protest letter spoke for itself.

DJs Mel Grieg and Michael Christian, who apologized for the prank on Tuesday, took down their Twitter accounts after they were bombarded by thousands of abusive comments. Rhys Holleran, CEO of Southern Cross Austereo, said the pair have been offered counseling and were taken off the air indefinitely.

No one could have foreseen the tragic consequences of the prank, he stressed.

“I spoke to both presenters early this morning and it’s fair to say they’re completely shattered,” Holleran told reporters on Saturday.

“These people aren’t machines, they’re human beings,” he said. “We’re all affected by this.”

Details about Saldanha have been trickling out since the duty nurse’s body was found at apartments provided by the private hospital, which has treated a line of royals before, including Prince Philip, who was hospitalized there for a bladder infection in June.

The nurse, who was originally from India, had lived with her partner Benedict Barboza and a teenage son and daughter in Bristol, in southwestern England, for the past nine years. The hospital praised her as a “first-class nurse” who was well-respected and popular among colleagues during her four years working there.

Just before dawn on Tuesday, Saldanha was looking after her patients when the phone rang. A woman pretending to be Queen Elizabeth II asked to speak to the duchess, and, believing the caller, Saldanha transferred the call to a fellow nurse caring for the duchess, who spoke to the two DJs about Kate’s condition live on air.

During the call — which was put online and later broadcast on news channels worldwide — Grieg mimicked the Britain’s monarch’s voice and asked about the duchess’ health. She was told Kate “hasn’t had any retching with me and she’s been sleeping on and off.” Grieg and Christian, who pretended to be Prince Charles, also discussed with the nurse when they could travel to the hospital to check in on Kate.

Three days later, officers responding to reports that a woman was found unconscious discovered Saldanha, who was pronounced dead at the scene. Police didn’t release a cause of death, but said they didn’t find anything suspicious. A coroner will make a determination on the cause.

In the aftermath of Saldanha’s death, some speculated about whether the nurse was subject to pressure to resign or about to be punished for the mistake. Royal officials said Prince William and Kate were “deeply saddened,” but insisted that the palace had not complained about the hoax. King Edward VII’s Hospital also maintained that it did not reprimand Saldanha.

“We did not discipline the nurse in question. There were no plans to discipline her,” a hospital spokesman said. He declined to provide further details, and did not respond to questions about the second nurse’s condition.

The Australian Communications and Media Authority, which regulates radio broadcasting, said it has received complaints about the prank and is discussing the matter with the Sydney-based station, which yanked its Facebook page after it received thousands of angry comments.

Holleran, the radio executive, would not say who came up with the idea for the call. He only said that “these things are often done collaboratively.” He said 2DayFM would work with authorities, but was confident the station hadn’t broken any laws, noting that prank calls in radio have been happening “for decades.”

The station has a history of controversy, including a series of “Heartless Hotline” shows in which disadvantage people were offered a prize that could be taken away from them by listeners.

Saldanha’s family asked for privacy in a brief statement issued through London police.

Flowers were left outside the hospital’s nurse’s apartments, with one note reading: “Dear Jacintha, our thoughts are with you and your family. From all your fellow nurses, we bless your soul. God bless.”

Officials from St. James’s Palace have said the duchess is not yet 12 weeks pregnant. The child would be the first for her and William.

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‘Post-PC’ is more than just marketing buzz for Apple CEO Tim Cook

Apple (AAPL) is no stranger to ditching technologies when it deems them to no longer be useful. The company dropped the floppy disk for a CD-ROM drive on the first iMac and most recently has shifted to building MacBooks and iMacs without any physical disc drives. In his first televised interview on NBC’s Rockcenter with Brian Williams, Apple CEO Tim Cook revealed that he has “ditched physical keyboards” now that he spends 80% of his time using his iPad “authoring email” and “working on things.” Cook says he’s gotten quite good at typing on the screen and advises people to trust auto-correction as it’s “quite good” — though it’s a feature we still blast iOS for some five years after the first iPhone launched. But what does it mean when the boss of the country’s most valuable company and the most revered technology company in the world doesn’t even use physical keyboards anymore? Perhaps the “post-PC” era will become mainstream sooner than we thought.

For years, Apple has touted the idea that we’re entering the “post-PC” era – a period when touchscreen-equipped smartphones and tablets will eclipse desktops, notebooks and complex operating systems as they slowly fade away into a niche reserved for professionals.

While there will still be a need for notebooks, Windows PCs and Macs, the increasing numbers of smartphones and tablets sold and continued decline of worldwide PC sales support Apple’s claim that mobile is where the next tech battleground is, even if Microsoft (MSFT) thinks otherwise.

The term “dogfooding” is often thrown around between tech blogs and Cook is doing exactly that — using his “own product to demonstrate the quality and capabilities of the product.”

As Steve Jobs once said, Apple only builds products its own engineers and designers would use themselves.

Cook’s not saying, “iPads are great” for some people and some tasks. The fact that Cook uses his iPad for 80% of his work and an iPhone all the time suggests he and Apple are serious about this post-PC era. Apple wants iPads and iPhones to be great for all of your computing needs.

Apple is serious enough about it that the big boss has shifted his habits from old-school typing on actual keyboards to using virtual keyboards. And for all we know, Cook could be using even more natural human interfaces such as more voice recognition (ex: Siri in iOS and built-in dictation in OS X Mountain Lion).

Will physical keyboards go the way of the dodo in the next handful of years? It’s doubtful, but don’t be surprised if you see fewer and fewer offices with QWERTY keyboards attached to PCs and more desks and execs just carrying tablets and a smartphone on the side.

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UK’s Kate and William “saddened” by nurse’s death

LONDON (Reuters) – Britain’s Prince William and his wife Kate said on Friday they were “deeply saddened” by the death of a nurse who fell victim to a prank call from an Australian radio station seeking details of the duchess’s condition while she was in hospital for morning sickness.

The King Edward VII hospital earlier confirmed the death of the nurse, Jacinda Saldanha.

“Their Royal Highnesses were looked after so wonderfully well at all times by everybody at King Edward VII Hospital, and their thoughts and prayers are with Jacintha Saldanha‘s family, friends and colleagues at this very sad time,” said a statement from William’s office.

(Reporting by Tim Castle; editing by Stephen Addison)

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GlaxoSmithKline in deal with MD Anderson on cancer drugs

(Reuters) – GlaxoSmithKline signed a collaboration agreement with the MD Anderson Cancer Center in Houston to develop new drugs that promote a patient’s immune system to attack cancer based on discoveries by Anderson researchers.

Anderson, one of the world’s premier cancer research and treatment centers, announced the agreement on Friday. Under terms of the deal, it will receive an undisclosed upfront payment and research funding from Glaxo and could earn $ 335 million plus royalties if the collaboration leads to approved medicines.

The British drugmaker will get exclusive worldwide rights to develop and sell antibodies that activate OX40, a protein on the surface of T cells – a type of white blood cell that is an important component of the body’s immune system. The antibodies were discovered by Dr. Yong-Jun Liu and colleagues when he was professor and chair of MD Anderson’s Department of Immunology.

“This agreement is … a testament to the vision shared by GSK and MD Anderson that successful clinical development of oncology drugs requires seamless integration of drug development expertise and deep biological knowledge,” Dr Giulio Draetta, director of Anderson’s Institute for Applied Cancer Science, said in a statement.

So-called immunotherapies, which help the body’s immune system to more efficiently attack cancer, are seen as an important new frontier is the fight against the disease in its many forms. Several companies are developing promising cancer immunotherapies.

Any drugs that come out of the Glaxo-Anderson collaboration would be several years away as more preclinical testing is needed before the OX40 approach will be tested in human subjects, MD Anderson said.

(Reporting by Bill Berkrot; Editing by Nick Zieminski)

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US jobless rate at four-year low

7 December 2012 Last updated at 11:29 ET

The US added 146,000 jobs in November, official data shows, as the economy seemingly shrugged off storm Sandy.

The unexpectedly strong performance brought the unemployment rate down to a four-year low of 7.7% of the workforce.

The jobs figure was well above most analysts’ expectations and continued a recent surge that began in July.

Weekly benefits data registered a sharp but short-lived jump in the number claiming unemployment benefits in the states ravaged by the storm last month.

“Our analysis leads us to conclude that Hurricane Sandy did not substantively impact the national employment and unemployment estimates for November,” said John Galvin, acting commissioner at the Bureau of Labour Statistics (BLS), which produced the jobs report.

The jobs survey data for the individual states – which can be used by analysts to determine what effect, if any, the storm had – will not be released until 21 December.

Wobbly confidence

Stock markets gave the figures a cautiously positive response, with both the Dow Jones and S&P 500 indexes rising 0.3% at the start of trading on Wall Street.

European shares, which had been down for the day following a cut in the Bundesbank’s growth forecast for Germany, jumped about 0.5% on the news.

The US Federal Reserve is due to meet next week to decide whether to expand the central bank’s policy of buying up debt from the markets in order to stimulate the recovery.

Continue reading the main story

US government bonds fell slightly in value following the data release, suggesting that markets have lowered the expectations for further intervention by the Fed in light of the strong jobs growth figure.

However, the Fed’s Open Market Committee will also have to weigh the latest consumer confidence survey, also released on Friday, which saw a sharp fall in sentiment in early December.

The University of Michigan’s consumer sentiment index fell to 74.5 from 82.7 the previous month, reaching a level normally associated with recession, although it was still well above the 55 registered at the depth of the 2008 downturn.

The drop in confidence among ordinary Americans may reflect the impasse in Congress in negotiations to avert the “fiscal cliff” of automatic spending cuts and tax rises that kicks in on 1 January.

Consumer sentiment briefly plummeted in 2011 when the US lost its top triple-A after a similar stand-off over the raising of the legal cap on the US federal government’s ability to borrow.

Mixed message

Although the latest jobs report beat expectations, this was in large part because expectations remain very low.

The number of jobs being added by the US economy since the recession ended has been far weaker than during previous economic recoveries, and has scarcely been enough to keep up with the natural growth in the US population.

The total number of people in employment has been stuck at about 58% of the US population since 2009, well down from the 63% level that characterised the boom years of the past decade, as many Americans have retired or given up seeking work.

Moreover, the relatively good news for November was offset by the BLS’s decision to downwardly revise the jobs figures for the preceding two months by a cumulative total of 49,000.

The October figure – which was originally reported just before the elections as 171,000, prompting some Republican supporters to suggest that the numbers had been manipulated – has been cut in the latest estimate to 138,000.

However, the reduction in the October figure was actually entirely due to public sector jobs cuts – mainly at the state and local government level – being 35,000 higher than originally estimated.

“While more work remains to be done, today’s employment report provides further evidence that the US economy is continuing to heal from the wounds inflicted by the worst downturn since the Great Depression,” said Alan Krueger, chairman of the White House Council of Economic Advisors.

Dropping out

The unemployment rate – which fell to 7.7% in November, down from 7.9% in October – has fallen in fits and starts over the past three years, since peaking at 10% in late 2008, but still remains some way short of the 5% level that has accompanied periods of healthy growth in the past two decades.

The total number of unemployed people remained largely unchanged in the latest month at about 12 million, as did the number of people out of work for over half a year, at 4.8 million. The number of people taking part-time jobs because they cannot find full-time work also remained unchanged at 8.2 million.

Statistics suggest that much of the decline in the unemployment rate since 2008 has been due to people dropping out of the workforce, either due to retirement or because they have given up seeking work.

The unemployment figure only includes those actively seeking a job, and once people stop doing so they drop out of the statistics.

The retail sector continued to lead the way in job creation, with professional services and IT also providing large contributions, while the construction sector, food manufacturing and chemicals saw sizeable job losses.

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Protesters surge around Egypt’s presidential palace

CAIRO (Reuters) – Tens of thousands of Egyptian protesters surged around the presidential palace on Friday and the opposition rejected President Mohamed Mursi‘s call for dialogue to end a crisis that has polarized the nation and sparked deadly clashes.

The Islamist leader’s deputy said he could delay a December 15 referendum on a constitution that liberals opposed, although the concession only partly meets a list of opposition demands that include scrapping a decree that expanded Mursi‘s powers.

“The people want the downfall of the regime” and “Leave, leave,” crowds chanted after bursting through barbed wire barricades and climbing on tanks guarding the palace of Egypt‘s first freely elected president.

Their slogans echoed those used in a popular revolt that toppled Mursi’s predecessor Hosni Mubarak in February 2011.

Vice President Mahmoud Mekky said in a statement sent to local media that the president was prepared to postpone the referendum if that could be done without legal challenge.

The dialogue meeting was expected to go ahead on Saturday in the absence of most opposition factions. “Tomorrow everything will be on the table,” a presidential source said of the talks.

The opposition has demanded that Mursi rescind a November 22 decree giving himself wide powers and delay the vote set for December 15 on a constitution drafted by an Islamist-led assembly which they say fails to meet the aspirations of all Egyptians.

The state news agency reported that the election committee had postponed the start of voting for Egyptians abroad until Wednesday, instead of Saturday as planned. It did not say whether this would affect the timing of voting in Egypt.

Ahmed Said, leader of the liberal Free Egyptians Party, told Reuters that delaying expatriate voting was made to seem like a concession but would not change the opposition’s stance.

He said the core opposition demand was to freeze Mursi’s decree and “to reconsider the formation and structure of the constituent assembly”, not simply to postpone the referendum.

The opposition organized marches converging on the palace which elite Republican Guard units had ringed with tanks and barbed wire on Thursday after violence between supporters and opponents of Mursi killed seven people and wounded 350.

Islamists, who had obeyed a military order for demonstrators to leave the palace environs, held funerals on Friday at Cairo’s al-Azhar mosque for six Mursi partisans who were among the dead. “With our blood and souls, we sacrifice to Islam,” they chanted.

“ARM-TWISTING”

In a speech late on Thursday, Mursi had refused to retract his November 22 decree or cancel the referendum on the constitution, but offered talks on the way forward after the referendum.

The National Salvation Front, the main opposition coalition, said it would not join the dialogue. The Front’s coordinator, Mohamed ElBaradei, a Nobel peace laureate, dismissed the offer as “arm-twisting and imposition of a fait accompli”.

Murad Ali, spokesman of the Brotherhood’s Freedom and Justice Party (FJP), said opposition reactions were sad: “What exit to this crisis do they have other than dialogue?” he asked.

Mursi’s decree giving himself extra powers sparked the worst political crisis since he took office in June and set off renewed unrest that is dimming Egypt’s hopes of stability and economic recovery after nearly two years of turmoil following the overthrow of Mubarak, a military-backed strongman.

The turmoil has exposed contrasting visions for Egypt, one held by Islamists, who were suppressed for decades by the army, and another by their rivals, who fear religious conservatives want to squeeze out other voices and restrict social freedoms.

Caught in the middle are many of Egypt’s 83 million people who are desperate for an end to political turbulence threatening their precarious livelihoods in an economy under severe strain.

“We are so tired, by God,” said Mohamed Ali, a laborer. “I did not vote for Mursi nor anyone else. I only care about bringing food to my family, but I haven’t had work for a week.”

ECONOMIC PAIN

A long political standoff will make it harder for Mursi’s government to tackle the crushing budget deficit and stave off a balance of payments crisis. Austerity measures, especially cuts in costly fuel subsidies, seem inevitable to meet the terms of a $ 4.8-billion IMF loan that Egypt hopes to clinch this month.

U.S. President Barack Obama told Mursi on Thursday of his “deep concern” about casualties in this week’s clashes and said “dialogue should occur without preconditions”.

The upheaval in the most populous Arab nation worries the United States, which has given billions of dollars in military and other aid since Egypt made peace with Israel in 1979.

The conflict between Islamists and opponents who each believe the other is twisting the democratic rules to thwart them has poisoned the political atmosphere in Egypt.

The Muslim Brotherhood’s spokesman, Mahmoud Ghozlan, told Reuters that if the opposition shunned the dialogue “it shows that their intention is to remove Mursi from the presidency and not to cancel the decree or the constitution as they claim”.

Ayman Mohamed, 29, a protester at the palace, said Mursi should scrap the draft constitution and heed popular demands.

“He is the president of the republic. He can’t just work for the Muslim Brotherhood,” Mohamed said of the eight-decade-old Islamist movement that propelled Mursi from obscurity to power.

(Additional reporting by Omar Fahmy; Writing by Edmund Blair and Alistair Lyon; Editing by Giles Elgood)

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Apple and Samsung return to court to battle over $1 billion verdict

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mtvU honors Frank Ocean, wounded Pakistani teen

NEW YORK (AP) — The mtvU network is honoring a rap superstar who detailed his love for another man and a Pakistani girl shot for her education advocacy as its Man and Woman of the Year.

Frank Ocean, who earned six Grammy nominations Wednesday, published a letter online about his first love, a man, just as his “channel ORANGE” disc was being released. MtvU on Thursday called it “an incredibly brave move for an artist on the verge of superstardom.”

Fifteen-year-old Malala Yousufzai (mah-LAH’-lah YOO’-suf-ZAY’) blogged about her support of education for girls in Pakistan. For that, Taliban militants stormed her school bus and shot her in the head and neck, but she survived.

The mtvU network is geared toward college students and is seen on more than 750 campuses.

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Vitamin D, calcium disappoint in dementia study

NEW YORK (Reuters Health) – Vitamin D and calcium supplements taken together in low doses offered no protection against dementia in a large U.S. study of older women, but scientists are still holding out hope for vitamin D alone.

Past research has suggested that vitamin D might protect against memory loss and overall functional decline in the aging brain. But more than 2,000 women in the new study who took 400 international units of vitamin D and 1,000 mg of calcium daily for an average of eight years developed cognitive impairments at the same rates as a comparison group on placebo pills.

During the many years that study was ongoing, however, experts gained a better understanding of how calcium and vitamin D might have conflicting effects, so the combination of the two might explain the disappointing results, the study’s authors say.

“I think the definitive study will just look at the effects of vitamin D,” said lead author Dr. Rebecca Rossom, from HealthPartners Institute for Education and Research, a nonprofit arm of a health maintenance organization (HMO) based in Minneapolis.

But this study is important because it “gets closer to how women take vitamin D now,” as a way build bone density, Rossom added.

Her team’s report, which is published in the Journal of the American Geriatrics Society, is also the first to use the rigorous approach known as a randomized, double-blind trial with a placebo group to look at the possible effects of vitamin D and calcium on cognitive decline.

Rossom and her colleagues analyzed data on 4,100 women who were simultaneously enrolled in two trials, including the Women’s Health Initiative (WHI) Calcium and Vitamin D trial that ended in 2005, and a WHI memory study.

All of the women, who averaged 71 years old at the outset of the studies, were also free of cognitive problems to start.

Half of the women were assigned to take the supplements and the rest were given identical looking dummy pills.

Ultimately, about 100 women, or five percent, in each group developed mild cognitive impairment – a term that can include everything from memory trouble to the serious dementia found in Alzheimer’s disease.

The researchers note that since the study ended, guidelines on vitamin and mineral intakes have changed. Currently the U.S. Institute of Medicine suggests getting 600 IUs per day of vitamin D for men and women up to age 70, and 800 IUs for older people. Suggested calcium amounts range from 700 mg to 1,300 mg per day, based on age, with an upper limit of 3000 mg. In both cases, intake recommendations cover both food and supplement sources.

So, the authors point out, their findings are specific only to the assigned amounts of vitamin D and calcium taken by women in the study – which are relatively low by today’s standards.

More than 16 million Americans suffer from some form of cognitive impairment, according to the U.S. Centers for Disease Control and Prevention, and the problem is expected to grow as more baby boomers age. Vitamin D might still be viewed as potentially offering a measure of protection against a condition with no formal treatment, if its effects can be decisively demonstrated.

“The sum of information shows conflicting evidence,” said Katherine Tucker of Northeastern University, who was not involved in the current study.

“Some recent studies suggest that too much calcium could have negative effects. The preponderance of evidence shows that vitamin D is protective, but some studies have shown no effect,” she told Reuters Health.

But, Tucker said, “This study by no means closes the door on the need for more research to clarify vitamin D’s effects.”

Rossom’s team acknowledges their study’s limitations. In addition to the doses of supplements in the trial, the results are strictly limited to women, who were mostly white. Also, older age is a significant risk factor for dementia and the study participants, by comparison, were relatively young.

“The next step is to test a higher dose of vitamin D,” said study coauthor JoAnn Manson of Harvard Medical School. “Higher doses will bring a study population to an achieved blood level that has been associated with reduced risk of cognitive decline in (past) studies.”

Manson is currently leading a large clinical trial designed primarily to look at the effects of vitamin D and omega-3′s on cancer risk, but the study will also monitor cognitive function. Results are expected in 2017.

A French study slated to finish next year is examining the cognitive effects of vitamin D versus a placebo in patients who already have Alzheimer’s disease.

“The bottom line is that we still just don’t know,” Tucker told Reuters Health. “We’re in the process of gathering more scientific evidence and will need to continue to do so until more studies point in a certain direction.”

SOURCE: http://bit.ly/VCIs9H Journal of the American Geriatrics Society, online November 23, 2012.

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