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Showing posts with label health. Show all posts
Showing posts with label health. Show all posts

Holstein with mad cow disease was lame, lying down

Written By Games Lover on Friday, April 27, 2012 | 11:11 PM

FRESNO, Calif. (AP) — The California dairy cow found to have mad cow disease was very old for a milk producer and had been euthanized after it became lame and started lying down, federal officials revealed in their latest update on the discovery.


The 10-year-old dairy cow, only the fourth ever discovered in the United States, was found as part of an Agriculture Department program that tests about 40,000 cows a year for the fatal brain disease. It was unable to stand before it was killed and sent to a rendering plant's Hanford, Calif. transfer station. It was one of dozens that underwent random testing at the transfer site, and the positive results have set off a federal investigation into the source of the disease.

U.S. health officials say there is no risk to the food supply. The California cow was never destined for the meat market, and it developed "atypical" BSE from a random mutation, something that scientists know happens occasionally. Somehow, a protein the body normally harbors folds into an abnormal shape called a prion, setting off a chain reaction of misfolds that eventually kills brain cells.

A USDA spokesman says they do not yet know what causes this strain of the disease. Agriculture officials are investigating, among other things, whether feed sources might have played a role in the animal contracting the fatal illness.

The strain of bovine spongiform encephalopathy that appeared in the UK in the 1990s and set off a worldwide beef scare was a form caused by cattle eating rendered protein supplements derived from slaughtered cattle, including brains and spinal columns, where the disease is harbored. Scientists know less about the "atypical" strain.

It "may or may not be related to feed or forage type," said Larry Hawkins, spokesman for the USDA's Animal and Plant Health Inspection Service in California. The dairy in question is one of 381 in Tulare County, the No. 1 dairy county in the nation. Most mega-dairies have computerized records which would allow investigators to easily track any offspring the cow had in order to keep up her milk production.

However, USDA spokesman Matt Herrick said investigators are laboring through paper records. That fact, combined with the fact that the cow was more than twice as old as most milk cows in the system, could indicate one of the region's smaller dairies is the target of the probe. The World Organization for Animal Health has established protocol for investigations into cases of bovine spongiform encephalopathy that includes finding other cows that the Holstein in question was raised with, tracking down all progeny and determining what she ate.

After the UK crisis, federal regulations changed to keep brains and spinal columns in cattle over 30 from being rendered into protein products for human consumption. In addition, bovine protein is not supposed to be fed to other bovines.

However, bovine protein is routinely fed to egg-laying chickens, and the "litter" from those chickens — chicken excrement and the feed that spills onto the floor — is collected and rendered back into cattle feed. Neurodegenerative researchers such as UC San Francisco's Dr. Stanley Prusiner, who received the 1997 Nobel Prize in Medicine for discovering prions — the protein associated with BSE — has warned that the US should ban poultry waste in cattle feed.

Most dairy cows typically experience declining milk production by age 5 and are sent to slaughterhouses to be ground into hamburger. The FDA tests 40,000 of the nation's 35 million slaughtered dairy and beef cattle annually for BSE, targeting animals older than 30 months, when the disease is more likely to appear. However, there are cases of BSE that have been detected in cattle as young as 20 months.

"We are testing .12 percent of the cattle slaughtered," Michael Hansen, senior scientist at the Consumers Union and a longtime critic of the US policy regarding mad cow disease. "In Japan they test all cattle over 20 months, in Europe it's all cattle over 24 or 30 months, depending on the country. They've been able to find sick animals that look healthy but could have ended up in the food supply."

A move by a Kansas beef packer in 2006 to voluntarily test all of its beef so it could label the packages "BSE free," was thwarted by the USDA, which argued that it would create instability in the market. Creekstone Farms Premium Beef had challenged the USDA's position that it held legal authority to control access to the test kits.

In the current case, the USDA didn't elaborate on the cow's symptoms other than to say it was "humanely euthanized after it developed lameness and became recumbent." Outward symptoms of the disease can include unsteadiness and incoordination. The unidentified Tulare County dairy where the cow died was not under obligation to report its suspicious behavior, according to state and federal agriculture officials, because the symptoms mimic other neurological diseases that can afflict cattle, said Dr. Richard Breitmeyer, director of the California Animal Health and Food Safety Laboratory at UC Davis.

"In reality (mad cow disease) is so rare in this country and there are just very little in the way of clinical signs specific to BSE alone," said Breitmeyer, who spent 17 years as California's state veterinarian.

Source

Think carrots, not candy as school snack: advocates

WASHINGTON (Reuters) - Junk food may soon be hard to buy at American public schools as the U.S. government readies new rules requiring healthier foods to be sold beyond the cafeteria -- a move most parents support, according to a poll released on Thursday.


With childhood obesity rising, the survey found most people agreed the chips, soda and candy bars students buy from vending machines or school stores in addition to breakfast and lunch are not nutritious, and they support a national standard for foods sold at schools.

The findings from the advocacy group Kids' Safe and Healthful Foods Project came as the federal government prepares to roll out a nationwide standard that may set up another battle among health experts, schools and the food industry. The U.S. Department of Agriculture is expected to issue its guidelines by June, according to some experts. These could limit the amount of sugar, salt and fat that foods sold at schools could contain.

Agriculture Department Under Secretary Kevin Concannon said an important step in addressing childhood obesity is to help make the "right choice an easy choice" while at school. "We look forward to working with parents, teachers, school food service professionals and the food industry to craft workable guidelines so that healthier options are available for our students," he said.

Many states have already enacted their own laws mandating healthier non-cafeteria food options. Jessica Donze Black, a dietician who leads the Kids' Safe and Healthful Foods Project, said the results show growing support for updating standards that surfaced in 1979.

"What has changed in the last 30 years is that the childhood obesity epidemic has more than tripled," she said. "The school environment has also changed. ... Today, there are a lot of other places throughout the day that compete with kids eating a healthy school meal."

SUPPORT FOR HIGHER STANDARDS

Eighty percent of the 1,010 adults polled said they would support nutritional standards limiting the calories, fat and sodium in such foods. Seventeen percent would oppose it. Most also agreed there are now few healthy options. Just five percent of adults said vending machines offered totally or mostly healthy choices compared with 10 percent for school stores and 21 percent for a la carte lunch lines.

Changes to school foods may be controversial. New standards for more fruits, vegetables and whole grains in traditional school meals announced in January drew scrutiny when lawmakers blocked limits to french fries and counted pizza as a vegetable because it contains tomato sauce.

Efforts to give students more healthy options to help fight childhood obesity have historically faced pressure from food and beverage companies and even from schools themselves, who rely on such food sales for extra cash. But health experts, pediatricians and other advocates say that is changing as more companies and school districts come on board at a time when more than one-third of U.S. children are overweight or obese.

"Most people accept that soda, candy bars and other unhealthy foods just don't deserve a place in school on a regular basis," said Margo Wootan, head of nutrition policy at the Center for Science in the Public Interest. She said there are still concerns that members of Congress and industry lobbyists could water down the proposal.

The American Academy of Pediatrics' Laura Jana said new rules are imperative now that kids consume more than half of their daily calories in school. More students are getting most of their calories from snacks and drinks, not meals, she said. "To me, it's a no-brainer. ... They can't make that healthy choice when we stick all those temptations under their noses," said Jana, a pediatrician based in Omaha, Nebraska, and co-author of "Food Fights: Winning the Nutritional Challenges of Parenthood Armed with Insight, Humor and a Bottle of Ketchup."

JUICE, GRANOLA BARS

Food and beverage makers have expanded their portfolios to include juice, granola bars and other healthier products. Vending machine companies focused on nutritious offerings have also sprung up. U.S. drink companies have already taken voluntary steps to keep sodas out of some schools and their trade group says this has cut calories consumed from beverages in schools by 88 percent.

Christopher Gindlesperger, spokesman for the American Beverage Association, said its voluntary guidelines are a good model for the government to follow. "It's a standard that's already in place that is working. It strikes a balance," he said.

ABA's guidelines eliminate soda in elementary and middle schools but allow diet sodas and low-calorie sports drinks in high school. Companies such as The Coca-Cola Co, PepsiCo Inc, and Nestle SA either had no immediate comment or referred questions to industry trade groups.

Mars Inc, maker of the iconic M&M's chocolate candies, said it has already agreed to withdraw branded vending machines from schools and does not offer traditional candy in those settings. Mars said it has instead developed other, lower-calorie products.

As for schools, most now realize vending machines can help teach students about healthy habits and boost learning even though money does loom large, said Whitney Meagher, project director for the National Association of State Boards of Education.

"If you have a choice between a cookie and an apple and the cookie is going to sell better, it's hard not to make that decision as a business decision," she said. The Kids' Safe and Healthful Foods Project is a joint venture by the nonprofit policy group The Pew Charitable Trusts and the Robert Wood Johnson Foundation, a private organization that aims to improve Americans' health.

Its poll surveyed 1,010 registered voters by telephone in mid-January and has a margin-of-error of plus-or-minus 3.1 percentage points.

Source

Drinking 8 Glasses Of Water A Day Is ‘Nonsense,’ Doc Says

Written By Games Lover on Thursday, December 29, 2011 | 6:10 AM


The health recommendation to drink six to eight glasses of water a day is “thoroughly debunked nonsense,” a doctor wrote this week in a commentary in the British Medical Journal.

Many health departments and organizations tout the need to drink that much water every day, but there is no high-quality scientific evidence to support the recommendation, wrote Dr. Margaret McCartney, a general practitioner based in Scotland.

Some organizations backed by bottled-water makers — such as Hydration for Health, created by the makers of Volvic and Evian — say that it’s important to drink 1.5 to 2 liters (about 6 to 8 cups) of water a day, and that being even mildly dehydrated plays a role in disease development, McCartney wrote.

However, no such claims have ever been confirmed in studies, she said, and drinking too much water can actually be dangerous by causing low blood sodium levels (a condition called hyponatraemia) and exposing people to pollutants in the water.

“People still think that we’re all going to die or our kidneys will shrivel up if we don’t drink eight cups of water a day,” McCartney told Postmedia News. “From what I can see, there’s never been any evidence in the medical literature about it.”

The first recommendation to drink six to eight glasses of water a day has been traced back to a 1945 U.S. research paper, but even that isn’t for certain, Postmedia News reported.

The Guardian reported that humans’ thirst mechanisms are so sophisticated that if our bodies are in need of water, they’ll let us know by making us thirsty.

What to Eat to Beat Skin Cancer


You got the pale-is-the-new-tan memo years ago and have the sun smarts to prove it. Skin cancer is the most common cancer in the United States, and women age 39 and under have a higher probability of developing its most serious form, melanoma, than they do any other invasive cancer except breast cancer.

Yep; knew that. Slather on waterproof sunscreen before you exercise, sport floppy broad-brimmed hats at the beach, stay out of midday rays, and steer clear of tanning beds. Check; do all that. Still, despite your savvy and diligence, there’s a new stealth skin saver you may be missing: your diet.

“The research is preliminary but promising,” says Karen Collins, RD, clinical dietitian and nutrition adviser for the American Institute for Cancer Research in Washington, D.C. “In addition to limiting your sun exposure, eating certain foods may help reduce your risk.”

Obama Publicly Backs Means-Testing Medicare

WASHINGTON - President Barack Obama formally acknowledged on Friday that he would support a plan to means-test Medicare as a part of a deal to raise the nation’s debt ceiling.

“I have said that means-testing on Medicare, meaning people like myself — I’m going to be turning 50 in a week, so I’m starting to think a little bit more about Medicare eligibility — but you can envision a situation for somebody in my position, me having to pay a little bit more on premiums or co-pays would be appropriate. And again, that would make a difference,” the president said at a press conference. “What we are not willing to do is restructure the program in the ways we have seen coming out of the House in recent months.”


The comment was the first public acknowledgment from the White House that the president would support changing the payment structure of the entitlement program. Prior to Obama’s remarks, multiple sources in both parties told The Huffington Post that the administration was making it clear to debt ceiling negotiators that such a structural change to Medicare was on the table.

The proposal is not entirely controversial among health care economists. But it will rankle a good chunk of the president’s own party, which has sought to keep Medicare’s structure as a basic insurance program. Medicare premiums for doctors and for prescription drugs are already means tested. Making top earners pay even more — while potentially sound policy — opens the program to politically potent charge that it is health care welfare for lower income Americans.

The Obama administration’s embrace of the idea came during talks between lawmakers and Vice President Joseph Biden. The exact contours of what was proposed are not entirely clear. But a version that House Majority Leader Eric Cantor (R-Va.) proposed in later discussions would have saved the government an estimated $38 billion by charging those high-income beneficiaries 10 percent more for the cost of hospital stays and prescription drugs.

Obama’s nominal support for means-testing Medicare, however, does fit into the larger outlines of his plan for the debt ceiling debate. In an effort to both win the support of Republicans and tackle as many deficit-contributing issues as possible, the administration has placed entitlement programs like Social Security and Medicare (“sacred cows” for the Democratic Party) squarely on the table. The president also lent his support to a plan to raise the eligibility age of Medicare from 65 to 67, over the course of roughly 25 years. His team has, additionally, discussed various changes to the way in which Social Security benefits are measured and paid.
 
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