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Tampilkan postingan dengan label medicine. Tampilkan semua postingan
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Selasa, 04 Oktober 2011

Scientist wins Nobel for medicine days after death

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Nobel prize winner Ralph Steinman's family, from left to right, daughter Lesley Steinman, wife Claudia Steinman, son Adam Steinman and daughter Alexis Steinman, speak at a ceremony honoring him at Rockefeller University in New York, Monday, Oct. 3, 2011. Ralph Steinman, a cell biologist, was awarded the Nobel Prize in medicine on Monday for his discoveries about the immune system but hours later his university said that he had been dead for three days. The Nobel committee had been unaware of Canadian-born Ralph Steinman's death. (AP Photo/Seth Wenig) Nobel prize winner Ralph Steinman's family, from left to right, daughter Lesley Steinman, wife Claudia Steinman, son Adam Steinman and daughter Alexis Steinman, speak at a ceremony honoring him at Rockefeller University in New York, Monday, Oct. 3, 2011. Ralph Steinman, a cell biologist, was awarded the Nobel Prize in medicine on Monday for his discoveries about the immune system but hours later his university said that he had been dead for three days. The Nobel committee had been unaware of Canadian-born Ralph Steinman's death. (AP Photo/Seth Wenig) FILE - In this April 24, 2009 photo, Dr. Ralph Steinman of Rockefeller University speaks during a news conference in Albany, N.Y., Friday, April 24, 2009. The Nobel committee says American Bruce Beutler and Luxembourg-born scientist Jules Hoffmann have shared the 2011 Nobel Prize in medicine with Canadian-born Ralph Steinman on Monday, Oct. 3, 2011. Beutler and Hoffman were cited "for their discoveries concerning the activation of innate immunity." Steinman was honored for "his discovery of the dendritic cell and its role in adaptive immunity." (AP Photo/Mike Groll) FILE - In this April 24, 2009 file photo, Dr. Bruce Beutler of the Scripps Research Institute in La Jolla, Calif., speaks during a news conference in Albany, N.Y. The Nobel committee said Monday, Oct. 3, 2011 that American Bruce Beutler and Luxembourg-born scientist Jules Hoffmann have shared the 2011 Nobel Prize in medicine with Canadian-born Ralph Steinman.(AP Photo/Mike Groll, File) Nobel prize winner Ralph Steinman's family, from left to right, daughter Lesley Steinman, son Adam Steinman, wife Claudia Steinman and daughter Alexis Steinman, speaks to the media after a ceremony honoring him at Rockefeller University in New York, Monday, Oct. 3, 2011. Ralph Steinman, a cell biologist, was awarded the Nobel Prize in medicine on Monday for his discoveries about the immune system but hours later his university said that he had been dead for three days. The Nobel committee had been unaware of Canadian-born Ralph Steinman's death. (AP Photo/Seth Wenig) The microscope that Ralph Steinman used in the early 70's to make his discovery about dendritic cells is displayed in his lab in New York, Monday, Oct. 3, 2011. Steinman, a cell biologist, was awarded the Nobel Prize in medicine on Monday for his discoveries about the immune system, but hours later his university said that he had been dead for three days. The Nobel committee had been unaware of Canadian-born Ralph Steinman's death. (AP Photo/Seth Wenig)eval("var currentItemd57851005a80479aaeeb90a12c70b9ff = 1;");eval("var nextd57851005a80479aaeeb90a12c70b9ff = 0;");eval("var previousd57851005a80479aaeeb90a12c70b9ff = 0;"); STOCKHOLM (AP) — A pioneering researcher was awarded the Nobel Prize in medicine Monday, three days after dying of pancreatic cancer without ever knowing he was about to be honored for his immune system work that he had used to try to prolong his own life.

The Nobel committee said it was unaware that Canadian-born cell biologist Ralph Steinman had already died when it awarded the prize to him, American Bruce Beutler and French scientist Jules Hoffmann.

Since the committee is only supposed to consider living scientists, the Nobel Foundation held an emergency meeting Monday and said the decision on the 10 million kronor ($1.5 million) prize will remain unchanged.

"The Nobel Prize to Ralph Steinman was made in good faith, based on the assumption that the Nobel laureate was alive," the foundation said.

Steinman, 68, died Sept. 30, according to Rockefeller University in New York. He underwent therapy based on his discovery of the immune system's dendritic cells, for which he won the prize, the university said.

"He was diagnosed with pancreatic cancer four years ago, and his life was extended using a dendritic-cell based immunotherapy of his own design," the university said.

Beutler and Hoffmann were cited for their discoveries in the 1990s of receptor proteins that can recognize bacteria and other microorganisms as they enter the body, and activate the first line of defense in the immune system, known as innate immunity.

Nobel committee members said the work by the three is being used to develop better vaccines, and in the long run could also help treatment of diseases linked to abnormalities in the immune system, such as rheumatoid arthritis, Type 1 diabetes, multiple sclerosis and chronic inflammatory diseases.

The work could also help efforts to make the immune system fight cancerous tumors, the committee said.

No vaccines are on the market yet, but Nobel committee member Goran Hansson told The Associated Press that vaccines against hepatitis are in the pipeline.

"I am very touched. I'm thinking of all the people who worked with me, who gave everything," Hoffmann said by telephone to a news conference in Paris. "I wasn't sure this domain merited a Nobel."

Beutler said he woke up in the middle of the night, glanced at his cellphone and realized he had a new email message.

"And, I squinted at it and I saw that the title line was 'Nobel Prize,' so I thought I should give close attention to that," Beutler said in an interview posted on the Nobel website. "And, I opened it and it was from Goran Hansson, and it said that I had won the Nobel Prize, and so I was thrilled."

Still, he was a "little disbelieving" until he checked his laptop, "and in a few minutes I saw my name there and so I knew it was real."

Since 1974, the Nobel statutes don't allow posthumous awards unless a laureate dies after the announcement but before the Dec. 10 award ceremony. That happened in 1996 when economics winner William Vickrey died a few days after the announcement.

Before the statutes were changed in 1974 two Nobel Prizes were given posthumously. In 1961, U.N. Secretary-General Dag Hammarskjold was awarded the Nobel Peace Prize less than a month after he died in a plane crash during a peace mission to Congo. Swedish poet Erik Axel Karlfeldt won the Nobel in literature in 1931, although he had died in March of that year.

"The Nobel Foundation thus believes that what has occurred is more reminiscent of the example in the statutes concerning a person who has been named as a Nobel Laureate and has died before the actual Nobel Prize Award Ceremony," the foundation said following its meeting.

Nobel officials said the situation was unprecedented, and that Steinman's survivors would receive his share of the prize money. It wasn't immediately clear who would represent him at the ceremony in Stockholm.

Nobel Foundation chairman Lars Heikensten, who started his job in June, said he was stunned when he found out that Steinman was dead.

"My first thought was: 'Wow, this is a remarkable thing to happen now that I'm involved in this for the first time. How do we handle this now?'" he told AP.

Hansson said the medicine committee didn't know Steinman was dead when it chose him.

"It is incredibly sad news," he said. "We can only regret that he didn't have the chance to receive the news he had won the Nobel Prize. Our thoughts are now with his family."

Beutler, 53, holds dual appointments at University of Texas Southwestern Medical Center in Dallas and as professor of genetics and immunology at the Scripps Research Institute in San Diego. He will become a full-time faculty member at UT Southwestern on Dec. 1.

Hoffmann, 70, headed a research laboratory in Strasbourg, France, between 1974 and 2009 and served as president of the French National Academy of Sciences between 2007-08.

Steinman had been head of Rockefeller University's Center for Immunology and Immune Diseases.

"We are all so touched that our father's many years of hard work are being recognized with a Nobel Prize," Steinman's daughter, Alexis Steinman, said in the Rockefeller University statement. "He devoted his life to his work and his family, and he would be truly honored."

Hoffmann's discovery came in 1996 during research on how fruit flies fight infections. Two years later, Beutler's research on mice showed that fruit flies and mammals activate innate immunity in similar ways when attacked by germs.

Steinman's discovery dates back to 1973, when he found a new cell type, the dendritic cell, which has a unique capacity to activate T-cells. Those cells have a key role in adaptive immunity, when antibodies and killer cells fight infections. They also develop a memory that helps the immune system mobilize its defenses next time it comes under a similar attack.

The medicine award kicked off a week of Nobel Prize announcements, and will be followed by the physics prize on Tuesday, chemistry on Wednesday, literature on Thursday and the Nobel Peace Prize on Friday. The winners of the economics award will be announced on Oct. 10.

The coveted prizes were established by wealthy Swedish industrialist Alfred Nobel — the inventor of dynamite — except for the economics award, which was created by Sweden's central bank in 1968 in Nobel's memory. The prizes are always handed out on Dec. 10, on the anniversary of Nobel's death in 1896.

Last year's medicine award went to British professor Robert Edwards for fertility research that led to the first test tube baby.

___

Associated Press writer Malin Rising contributed to this report.

Associated Press

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News

Senin, 03 Oktober 2011

Three Scientists Share Nobel Medicine Prize

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Health Management



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Sabtu, 01 Oktober 2011

Crackdown on fake medicine trade

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29 September 2011 Last updated at 13:38 GMT Tom Symonds By Tom Symonds Home Affairs correspondent Danny Lee-Frost, from the MHRA, described the investigation as officers moved in on an alleged drug-retailing operation

Investigators are cracking down on the multi-million pound trade in fake and unlicensed medicines, as concerns grow over potential health risks. BBC News joined investigators on one of their raids.

More people are diagnosing their medical problems and buying medicines online - boosting the growing trade in fake and illegitimate drugs supplied without a prescription.

Enforcement agencies warned that those taking the drugs are risking their health, as they launched an international operation to tackle the problem.

The Medicines and Healthcare products Regulation Agency (MHRA) says more than a million doses of medicines worth approximately £2m have been seized from the UK's postal service and ports during its latest crackdown.

An additional 100,000 doses were discovered in raids by police and investigators - with a value of at least £200,000.

'Jackpot'

Valium and Viagra - described by the MHRA as lifestyle drugs - are the most commonly sold.

But the agency warns that the counterfeiters are starting to offer drugs for cancer, heart conditions, epilepsy, asthma and depression.

Continue reading the main story
They are not interested in your health, they are interested in taking your money”

End Quote Danny Lee-Frost Enforcement investigator BBC News joined a dozen MHRA officers as they moved in on an alleged drug-retailing operation in Brighton.

Although the MHRA has discovered a pharmaceutical drugs factory in London, the drugs it seizes are usually manufactured in China or India, so in this raid they are looking for evidence of imported "product".

The investigation begins with intelligence gathered from monitoring a website advertising Kamagra - an Indian version of Viagra not licensed for sale in Britain.

Accompanied by police officers, the team raids an address on a housing estate and arrests one man.

Senior enforcement investigator Danny Lee-Frost says: "No-one involved in those websites is medically qualified. None of the products are licensed or tested.

"They are selling them to you as a drug dealer would, they are not interested in your health, they are interested in taking your money. And the money is big."

The house is searched, documents and computers seized, several safes sliced open with angle-grinders and more than £1,000 in cash discovered - but no drugs.

The investigators switch their focus to paperwork in the house which suggests the owner has been paying rent on a further two storage spaces. A team heads off to the first to investigate.

Officers seize a computer and drugs during a raid in Brighton Importers face prosecution under the Medicines Act

It turns out to be a room in a small office building. Again nothing is found. But upstairs, one of the MHRA's investigators discovers a box, half-full of pills.

They are Valium tablets - quite possibly counterfeit, according to Mr Lee-Frost.

It is a small but useful find for the investigators, meaning the man they arrested can potentially be prosecuted. Pleased with their work so far, they drive over to the other address.

A rundown house in a residential area, it has bars on the windows and a bolted door. Using keys seized earlier, the investigators open the door.

Inside a grubby front room is a pile of boxes containing green tablets in sheets of blister packs.

The pills are Kamagra, according to Mr Lee-Frost. This version of Viagra is popular in India but illegal to sell in the UK - and certainly illegal to supply without a prescription.

The drug is easily distinguishable from legitimate Viagra, which is normally blue. It has been sent from Pakistan.

'Dog urine'

"We have seen some truly horrendous places where products have been stored," says Mr Lee-Frost.

"Residential premises, stuff under the kitchen sink covered in dog urine, rats gnawing at them. They are just commodities."

The haul has a potential value in excess of £100,000 and the person who imported it could be prosecuted under the Misuse of Medicines act.

He could be sued by Pfizer, the owner of the Viagra brand, and is also being investigated for money-laundering.

Importers can break the medicines law in two ways - selling drugs not licensed for the UK and selling fake drugs made abroad, which can contain less active ingredient than they should.

A haul of Kamagra - an Indian version of Viagra - discovered in Brighton The health risks of fake drugs are hard to quantify, the MHRA says

One haul of a counterfeit cancer drug was tested and found to contain 98% of the active ingredient.

But it was badly manufactured and would not properly dissolve in the body, posing an enormous health risk.

Another trick is to package Viagra as a natural Chinese herbal remedy, designed to enhance sexual performance. It would work, says the MHRA, but Viagra should not be taken without speaking to a doctor.

Nine times in the last three years illegitimate drugs have made it as far as a pharmacy.

The agency finds it extremely hard to quantify the risks. Records are not kept of patients who have suffered the ill-effects of illegal drugs, partly because it is rarely obvious they have been the cause of health problems.

In some ways the biggest threat this market could pose is to the brand names and trademarks of the big pharmaceutical producers.

But the MHRA insists there are health risks - citing a recent survey of GPs suggesting one in four had treated patients made ill by drugs bought online.

Trouble sleeping

Another developing trend is for students to buy a certain drug used to treat the condition narcolepsy.

Roy Lambden: "I don't want another family to go through what we've been through"

It is being bought online by those who want to stay up all night studying.

Last December a young paramedic, Lorna Lambden, was having trouble sleeping after her shifts. She bought an anti-depression drug also used for insomnia.

It is thought she took fewer than four pills, but was found dead. Her father, Roy, told the BBC on Thursday the medicine "stopped her heart".

"You don't realise the dangers of prescription drugs. There's a reason there is a prescription."

He blamed the illegal online pharmacies, and said: "It's no different from selling hard drugs. It's become so easy to buy prescription drugs rather than booking an appointment with a doctor."

"I don't want another family to go through what we've been through. Those drugs are too readily available, it's too easy for people to take them. If people don't buy them those companies will go out of business."

The MHRA's advice is simple: Do not buy anything off the internet without a prescription. Legal internet pharmacies should always ask for one.



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Peliculas Online

Jumat, 30 September 2011

Laughter good medicine for dementia patients:study

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SYDNEY | Thu Sep 29, 2011 12:15am EDT

SYDNEY (Reuters) - Laughter may be good medicine for elderly dementia patients -- and best of all, it doesn't have side effects.

Australian humor therapist Jean-Paul Bell was originally a clown doctor working with sick children, but now he makes the elderly laugh through a programme called Play-Up.

Bell was also the key humor therapist in a Sydney-based study into the impact of humor therapy on mood, agitation, behavioral disturbances and social engagement in dementia patients, a study that showed those who took part seemed happier.

"The whole idea behind the Play-Up programme and what we're doing at the Arts Health Institute is encouraging them to play more because we believe that they've got potential to keep playing right until you take your last breath," Bell said.

He set up the Arts Health Institute to train aged-care staff in fostering playful relationships with their patients, particularly those with dementia.

The study, called the SMILE study, took place over three years, involving 36 nursing homes and 400 residents.

Dressed in a bright blue jacket with brass buttons and shoulder tabs, Bell uses a combination of games, jokes and songs -- accompanying himself on a ukulele -- to get the elderly to laugh.

In addition to seeming more content, the dementia patients involved in the study seemed less agitated by 20 percent, said lead researcher Lee-Fay Low at the University of New South Wale's School of Psychiatry.

"Twenty percent sounds like a small effect but it's about the same amount, the same effect as you would get if you gave them an antipsychotic medication -- medication you would use to treat schizophrenia, bi-polar disorder," Low said.

According to the University of New South Wales, dementia rates are expected to double in Australia to about 450,000, mainly due to an aging population.

About 6.5 percent of people over 65 and 22 percent of people over 85 have dementia, an umbrella term used to describe up to 60 different conditions causing similar neurodegenerative changes in the brain.

Best of all, the dementia patients weren't the only ones who benefited from the study.

"The staff were invigorated, they felt that their jobs were enhanced," said therapist Joanne Rodrigues.

"They were part of something that they could see the real benefits (of)."

(Reporting by Jill Gralow; editing by Elaine Lies)



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