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Tampilkan postingan dengan label Expected. Tampilkan semua postingan
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Sabtu, 08 Oktober 2011

Panel expected to say no prostate screenings for men

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Study: Men don't need prostate examsNEW: Prostate Cancer Foundation spokesman calls recommendation a mistakeNEW: But author of report says he believes testing does more harm than goodU.S. Preventive Services Task Force to give prostate specific antigen testing a "D" ratingIt says tests bring "small or no reduction" in prostate cancer deaths

(CNN) -- The U.S. Preventive Services Task Force, the group that told women in their 40s that they don't need mammograms, will soon recommend that men not get screened for prostate cancer, according to a source privy to the task force deliberations.

The task force is set to recommend a "D" rating for prostate specific antigen, or PSA, testing. Such a rating means "there is moderate or high certainty that the service has no net benefit or that the harms outweigh the benefits," according to the group's website. The task force is set to propose this recommendation Tuesday, and then allow for a comment period before issuing a final recommendation.

According to a draft copy of a report released Friday, a review of studies shows screening with the PSA blood test results in "small or no reduction" in prostate cancer deaths.

The report adds that PSA testing is "associated with harms related to subsequent evaluation and treatments."

The PSA test, which is sometimes accompanied by a digital rectal exam, can help determine if a man has prostate cancer. The problem is that many of the cancers that get detected are so small and slow-growing, they'll never be harmful, and doctors have a difficult time discerning the quick, harmful cancers from the slow, harmless ones.

Empowered Patient: What's a dude to do?

If you test 100 men over age 50, 17 of them will have prostate cancer, and only three of those will have a fast-growing cancer and die of the disease, according to Dr. Kenneth Lin, senior author of the paper.

If the 14 men with the slow-growing cancers are treated, they could be rendered impotent or incontinent from the treatment; or worse, the treatment could kill them. About one in 500 men who has a radical prostatectomy will die because of complications of the surgery, according to Lin.

Some prostate cancer patients were disappointed with the task force's decision.

A spokesman for the Prostate Cancer Foundation called the proposed recommendation "a tremendous mistake."

"You're talking to someone whose life was saved by [the PSA test]," Dan Zenka said.

But Lin says he believes testing does more harm than good.

"Maybe you should get tested if you have this horrible family history where everyone gets prostate cancer before the age of 50. But for most men, testing is harmful," he said.

Until last year, Lin worked with the Preventive Services Task Force as a medical officer for the Agency for Healthcare Research and Quality. He says the task force voted in 2009 to give PSA screening a "D" rating, but it didn't announce it because of the uproar over the mammogram recommendation.

"I was so frustrated with the political interference, and this was the final straw," said Lin, who left the group in November and is now an assistant professor of family medicine at Georgetown University Medical Center.

CNN's Jennifer Bixler and Aaron Cooper contributed to this report.



Education Information



Technology

Minggu, 02 Oktober 2011

Cantaloupe illnesses and deaths expected to rise

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Owner Eric Jensen examines cantaloupe on the Jensen Farms near Holly, Colo., on Wednesday, Sept. 28, 2011. Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks. (AP Photo/Ed Andrieski) Owner Eric Jensen examines cantaloupe on the Jensen Farms near Holly, Colo., on Wednesday, Sept. 28, 2011. Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks. (AP Photo/Ed Andrieski) A sign leading to the Jensen Farms near Holly, Colo., is pictured on Wednesday, Sept. 28, 2011. Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks. (AP Photo/Ed Andrieski) Cantaloupes rot in the afternoon heat on a field on the Jensen Farms near Holly, Colo., on Wednesday, Sept. 28, 2011. Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks. (AP Photo/Ed Andrieski) Workers use a tractor to remove plastic from a field of rotting cantaloupe on the Jensen Farms near Holly, Colo., on Wednesday, Sept. 28, 2011. The Food and Drug Administration has recalled 300,000 cases of cantaloupe grown on the Jensen Farms after connecting it with a listeria out break. (AP Photo/Ed Andrieski)eval("var currentItemd57851005a80479aaeeb90a12c70b9ff = 1;");eval("var nextd57851005a80479aaeeb90a12c70b9ff = 0;");eval("var previousd57851005a80479aaeeb90a12c70b9ff = 0;"); WASHINGTON (AP) — Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks.

So far, the outbreak has caused at least 72 illnesses — including up to 16 deaths — in 18 states, making it the deadliest food outbreak in the United States in more than a decade.

The heads of the Centers for Disease Control and Prevention and the Food and Drug Administration said consumers who have cantaloupes produced by Jensen Farms in Colorado should throw them out. If they are not sure where the fruit is from, they shouldn't eat it.

Neither the government nor Jensen Farms has supplied a list of retailers who may have sold the fruit. Officials say consumers should ask retailers about the origins of their cantaloupe. If they still aren't sure, they should get rid of it.

"If it's not Jensen Farms, it's OK to eat," said Thomas Frieden, director of the CDC. "But if you can't confirm it's not Jensen Farms, then it's best to throw it out."

Jensen Farms of Holly, Colo. says it shipped cantaloupes to 25 states, though the FDA has said it may be more, and illnesses have been discovered in several states that were not on the shipping list. A spokeswoman for Jensen Farms said the company's product is often sold and resold, so they do not always know where it went.

The recalled cantaloupes may be labeled "Colorado Grown," ''Distributed by Frontera Produce," ''Jensenfarms.com" or "Sweet Rocky Fords." Not all of the recalled cantaloupes are labeled with a sticker, the FDA said. The company said it shipped out more than 300,000 cases of cantaloupes that contained five to 15 melons, meaning the recall involved 1.5 million to 4.5 million pieces of fruit.

The FDA said none of the cantaloupes had been exported, reversing an earlier statement that some of the tainted melons had been shipped abroad.

Frieden and FDA Commissioner Margaret Hamburg said that illnesses are expected for weeks to come because the incubation period for listeria can be a month or even longer. That means that someone who ate contaminated cantaloupe last week may not get sick until next month. Jensen Farms last shipped cantaloupes on Sept. 10. The shelf life is about two weeks.

"We will see more cases likely through October," Hamburg said.

The Food and Drug Administration said state health officials found listeria in cantaloupes taken from Colorado grocery stores and from a victim's home that were grown at Jensen Farms. Matching strains of the disease were found on equipment and cantaloupe samples at Jensen Farms' packing facility in Granada, Colo.

Sherri McGarry, a senior adviser in the FDA's Office of Foods, said the agency is looking at the farm's water supply and possible animal intrusions among other things in trying to figure out how the cantaloupes became contaminated. Listeria bacteria grow in moist, muddy conditions and are often carried by animals.

The health officials said this is the first known outbreak of listeria in cantaloupe. Listeria is generally found in processed meats and unpasteurized milk and cheese, though there have been a growing number of outbreaks in produce. Hamburg called the outbreak a "surprise" and said the agencies are studying it closely to find out how it happened.

Cantaloupe is often the source of outbreaks, however. Frieden said CDC had identified 10 other cantaloupe outbreaks in the last decade, most of them from salmonella.

Listeria is more deadly than well-known pathogens like salmonella and E. coli, though those outbreaks generally cause many more illnesses. Twenty-one people died in an outbreak of listeria poisoning in 1998 traced to contaminated hot dogs and possibly deli meats made by Bil Mar Foods, a subsidiary of Sara Lee Corp. Another large listeria outbreak, in 1985, killed 52 people and was linked to Mexican-style soft cheese.

Listeria generally only sickens the elderly, pregnant women and others with compromised immune systems. The CDC said the median age of those sickened is 78 and that 1 in 5 who contract the disease can die from it. Symptoms include fever and muscle aches, often with other gastrointestinal symptoms.

Unlike many pathogens, listeria bacteria can grow at room temperatures and even refrigerator temperatures. It is hardy and can linger long after the source of the contamination is gone — health officials say people who may have had the contaminated fruit in their kitchens should clean and sanitize any surfaces it may have touched.

The CDC said Tuesday that 13 deaths are linked to the tainted fruit. State and local officials say they are investigating three additional deaths that may be connected.

The death toll released by the CDC Tuesday surpassed the number of deaths linked to an outbreak of salmonella in peanuts almost three years ago. Nine people died in that outbreak. The CDC reported four deaths in New Mexico, two deaths each in Colorado and Texas and one death each in Kansas, Missouri, Nebraska, Oklahoma and Maryland.

New Mexico officials said Tuesday they are investigating a fifth death, while health authorities in Kansas and Wyoming said they too are investigating additional deaths possibly linked to the tainted fruit.

The CDC reported the 72 illnesses and deaths in 18 states. Cases of listeria were reported in California, Colorado, Florida, Illinois, Indiana, Kansas, Maryland, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Texas, Virginia, West Virginia, Wisconsin, and Wyoming. The most illnesses were reported in Colorado, which has seen 15 sickened. Fourteen illnesses were reported in Texas, 10 in New Mexico and eight in Oklahoma.

While most healthy adults can consume listeria with no ill effects, it can kill the elderly and those with compromised immune systems. It is also dangerous to pregnant women because it easily passes through to the fetus. The CDC's Frieden said that two of those sickened were pregnant women but they have since recovered.

___

Online:

CDC on cantaloupe outbreak: http://www.cdc.gov/listeria/index.html

FDA on cantaloupe recall: http://www.fda.gov/Food/FoodSafety/CORENetwork/ucm272372.htm

Center for Science and the Public Interest, "Super Safe Your Kitchen": http://www.cspinet.org/new/pdf/safekitchen.pdf

___

Find Mary Clare Jalonick on Twitter at http://twitter.com/MCJalonick

Associated Press

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Peliculas Online

Sabtu, 01 Oktober 2011

Illness, Deaths From Listeria-Tainted Cantaloupes Expected to Rise

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Federal health officials said Wednesday more illnesses and possibly more deaths may be linked to an outbreak of listeria in cantaloupe in coming weeks.

So far, the outbreak has caused at least 72 illnesses — including up to 16 deaths — in 18 states, making it the deadliest food outbreak in the United States in more than a decade.

The heads of the Centers for Disease Control and Prevention and the Food and Drug Administration said consumers who have cantaloupes produced by Jensen Farms in Colorado should throw them out. If they are not sure where the fruit is from, they shouldn't eat it.

MORE: Listeria-Laced Cantaloupe: 6 Things You Need to Know

Neither the government nor Jensen Farms has supplied a list of retailers who may have sold the fruit. Officials say consumers should ask retailers about the origins of their cantaloupe. If they still aren't sure, they should get rid of it.

"If it's not Jensen Farms, it's OK to eat," said Thomas Frieden, director of the CDC. "But if you can't confirm it's not Jensen Farms, then it's best to throw it out."

Jensen Farms of Holly, Colo. says it shipped cantaloupes to 25 states, though the FDA has said it may be more, and illnesses have been discovered in several states that were not on the shipping list. A spokeswoman for Jensen Farms said the company's product is often sold and resold, so they do not always know where it went.

The recalled cantaloupes may be labeled "Colorado Grown," ''Distributed by Frontera Produce," ''Jensenfarms.com" or "Sweet Rocky Fords." Not all of the recalled cantaloupes are labeled with a sticker, the FDA said. The company said it shipped out more than 300,000 cases of cantaloupes that contained five to 15 melons, meaning the recall involved 1.5 million to 4.5 million pieces of fruit.

The FDA said none of the cantaloupes had been exported, reversing an earlier statement that some of the tainted melons had been shipped abroad.

MORE: Listeria Outbreak in Cantaloupes Is the Deadliest in a Decade

Frieden and FDA Commissioner Margaret Hamburg said that illnesses are expected for weeks to come because the incubation period for listeria can be a month or even longer. That means that someone who ate contaminated cantaloupe last week may not get sick until next month. Jensen Farms last shipped cantaloupes on Sept. 10. The shelf life is about two weeks.

"We will see more cases likely through October," Hamburg said.

The Food and Drug Administration said state health officials found listeria in cantaloupes taken from Colorado grocery stores and from a victim's home that were grown at Jensen Farms. Matching strains of the disease were found on equipment and cantaloupe samples at Jensen Farms' packing facility in Granada, Colo.

Sherri McGarry, a senior adviser in the FDA's Office of Foods, said the agency is looking at the farm's water supply and possible animal intrusions among other things in trying to figure out how the cantaloupes became contaminated. Listeria bacteria grow in moist, muddy conditions and are often carried by animals.

MORE: What's Lurking in Your Meat and Poultry? Probably Staph

The health officials said this is the first known outbreak of listeria in cantaloupe. Listeria is generally found in processed meats and unpasteurized milk and cheese, though there have been a growing number of outbreaks in produce. Hamburg called the outbreak a "surprise" and said the agencies are studying it closely to find out how it happened.

Cantaloupe is often the source of outbreaks, however. Frieden said CDC had identified 10 other cantaloupe outbreaks in the last decade, most of them from salmonella.

Listeria is more deadly than well-known pathogens like salmonella and E. coli, though those outbreaks generally cause many more illnesses. Twenty-one people died in an outbreak of listeria poisoning in 1998 traced to contaminated hot dogs and possibly deli meats made by Bil Mar Foods, a subsidiary of Sara Lee Corp. Another large listeria outbreak, in 1985, killed 52 people and was linked to Mexican-style soft cheese.

Listeria generally only sickens the elderly, pregnant women and others with compromised immune systems. The CDC said the median age of those sickened is 78 and that 1 in 5 who contract the disease can die from it. Symptoms include fever and muscle aches, often with other gastrointestinal symptoms.

Unlike many pathogens, listeria bacteria can grow at room temperatures and even refrigerator temperatures. It is hardy and can linger long after the source of the contamination is gone — health officials say people who may have had the contaminated fruit in their kitchens should clean and sanitize any surfaces it may have touched.

MORE: See TIME's health and medicine covers.

The CDC said Tuesday that 13 deaths are linked to the tainted fruit. State and local officials say they are investigating three additional deaths that may be connected.

The death toll released by the CDC Tuesday surpassed the number of deaths linked to an outbreak of salmonella in peanuts almost three years ago. Nine people died in that outbreak. The CDC reported four deaths in New Mexico, two deaths each in Colorado and Texas and one death each in Kansas, Missouri, Nebraska, Oklahoma and Maryland.

New Mexico officials said Tuesday they are investigating a fifth death, while health authorities in Kansas and Wyoming said they too are investigating additional deaths possibly linked to the tainted fruit.

The CDC reported the 72 illnesses and deaths in 18 states. Cases of listeria were reported in California, Colorado, Florida, Illinois, Indiana, Kansas, Maryland, Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, Texas, Virginia, West Virginia, Wisconsin, and Wyoming. The most illnesses were reported in Colorado, which has seen 15 sickened. Fourteen illnesses were reported in Texas, 10 in New Mexico and eight in Oklahoma.

While most healthy adults can consume listeria with no ill effects, it can kill the elderly and those with compromised immune systems. It is also dangerous to pregnant women because it easily passes through to the fetus. The CDC's Frieden said that two of those sickened were pregnant women but they have since recovered.

—By MARY CLARE JALONICK



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Peliculas Online

Kamis, 22 September 2011

NASA Satellite Expected To Collide With Earth

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According to NASA, a retired U.S. research satellite the size of a school bus has been sucked into the Earth's gravitational pull. The space agency expects the satellite to break into pieces on entry to the atmosphere, and for some of those pieces — some as heavy as 300 pounds — to rain down later this week. Donald Kessler, who served as NASA's senior scientist for orbital debris research, tells Michele Norris that an event of this nature is highly unusual — and odds are slim that the debris will injure people or destroy property.

Copyright © 2011 National Public Radio®. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.

MICHELE NORRIS, host: According to NASA, a retired U.S. research satellite has been sucked into the Earth's gravitational pull. The space agency believes it will break apart, and pieces of it will crash into the planet later this week. But where and when exactly, they don't yet know.

Now, space junk falls to Earth on an almost daily basis without injuring people or property. But this piece of falling space junk is far bigger than the norm. It's 1,300 pounds, the size of a school bus.

Donald Kessler spent more than 30 years with NASA, most recently as the agency's senior scientist for orbital debris research. And he joins me now to talk about a particular piece of orbital debris. Welcome to the program.

Dr. DONALD KESSLER: Thank you.

NORRIS: When was the last time a spacecraft of this size crashed into Earth?

KESSLER: Well, it has been a while but things re-enter almost every day and most of it does burn up. And there have been within the last year several objects that have survived re-entry. And people have found those objects and displayed them. You can usually find them on the Web. There are pictures of things that have survived re-entry.

NORRIS: And when they land they just arrive with a thud in someone's farm field?

KESSLER: That's exactly what happened, though. It was around February of this year when a person in Wyoming was walking out in his field and heard a thud, and eventually found this cylinder that was about 20 inches in diameter in a crater. It turned out to be a piece of Russian spacecraft. And it's the type of things that usually survive re-entry.

Things that are made out of titanium or stainless steel, beryllium, that all have high temperatures for melting, survive re-entry. But usually most everything else burns up.

NORRIS: So, tell us a little bit more about this research satellite. What will likely happen when it re-enters the atmosphere?

KESSLER: Well, it will start to break up is the first thing that will happen to it because the outer skin will not be able to withstand the heat and the forces of re-entry. And as it breaks up, it'll start releasing various pieces of it. And most of those pieces will just totally disintegrate and not survive to the ground. But there'll be...

NORRIS: Most.

KESSLER: Yes. There will definitely be at least a handful of pieces that it will survive and land somewhere, and could be found if it happened to land on land.

NORRIS: And there's a handful, not literally a handful, not something that'll fit in your hand. So this will actually probably be quite large, right?

KESSLER: Yeah, one piece may be as large as 300 pounds.

NORRIS: Now, we don't want to freak people out, you know? And we certainly don't want to send people into a panic. But what's the likelihood that this could actually fall on a person or a building or actually strike someone or something?

KESSLER: Well, the calculated risk is 1 in 3,800 that somebody would be injured on the Earth. And since there are literally billions of people on Earth, the chances that it be either be you or me is something like one chance and 10 trillion.

NORRIS: I have one small, last question for that farmer who found that debris in his field. If this lands someplace on open land, who owns that piece of debris?

KESSLER: The person who put it in orbit. Any time you launch something into space, the launching nation is responsible for that no matter what happens. And for that reason, there is a lot of responsibility then placed on the people who put things in space. And so, if they cause an injury, they are liable for it.

NORRIS: So that lands in your backyard, if this lands on your backyard, you can't put it on eBay.

KESSLER: Well, you probably could because they would bother to ask for it.

NORRIS: Oh, okay. Maybe you shouldn't put it on eBay.

(SOUNDBITE OF LAUGHTER)

KESSLER: Right, at least not without permission.

NORRIS: Donald Kessler spent more than 30 years with NASA. He was most recently the agency's senior scientist for orbital debris research. Donald Kessler, thank you very much.

KESSLER: You're welcome.

(SOUNDBITE OF MUSIC)

NORRIS: More coming up on ALL THINGS CONSIDERED.

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