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Showing posts with label CBS. Show all posts
Showing posts with label CBS. Show all posts

Thursday, 24 November 2011

Green tea may lower bad cholesterol

November 17, 2011 3:17 PM

 (Credit: istockphoto)


(CBS) Good news, green tea aficionados. A new study shows that the famously healthful brew may shave points off your "bad" cholesterol level.

Green tea and capsules containing green tea compounds were tested. The tea was found to lower total and "bad" cholesterol levels by 5 to 6 points. The beverage was found to be consistently more effective than capsules - although the overall benefits for both were small.

Green tea contains antioxidant compounds called catechins, which many studies have tested for their effect on cholesterol. But these studies have been small and had conflicting results. For the new study - published in the Journal of the American Dietetic Association - researchers at Western University of Health Sciences in Pomona, Calif., pooled the results of these clinical trials, involving a total of 1,415 adults. The trials - lasting anywhere between three weeks and six months - had participants consume either green tea beverages, capsules, or placebos daily. Benefits were found among people who had high cholesterol levels at the beginning of the study.

Is green tea the new remedy for high cholesterol? Not quite. "If someone is already taking medication for their cholesterol, they should stick with it and not try to trade it for green tea, either capsules or the beverage," study author Dr. Olivia Phung told Reuters Health.

The study found no significant effect on "good" HDL cholesterol.

The use of herbal supplements like green tea is one strategy to lower cholesterol, along with medication and lifestyle changes, according to the study.

Major risk factors for high levels of "bad" LDL cholesterol include smoking, high blood pressure, low "good" HDL cholesterol, family history, and age. High levels of LDL cholesterol increase risk for heart disease.

The National Heart, Lung, and Blood Institute has more on cholesterol.

 http://www.cbsnews.com/8301-504763_162-57326839-10391704/green-tea-may-lower-bad-cholesterol/?tag=contentMain;contentBody

Parts of Einstein's brain on display for first time


November 23, 2011 2:52 PM

(Livescience.com)
A box containing 46 ultra-thin slices of Einstein's brain is on display in Philadelphia.
(Credit: for the MÃ?¼tter Museum of The College of Physicians of Philadelphia.,Evi Numen, 2011) 
If you've ever wondered what the brain of a genius looks like, make your way to Philadelphia. There, the public can view for the first time 46 slivers of the brain of Albert Einstein, the theoretical physicist who developed the Theory of General Relativity.

The brain is on display at Philadelphia's Mütter Museum and Historical Medical Library, in a whirlwind exhibit built in about nine working days, according to museum curator Anna Dhody. Visitors can view 45 of the brain slides as-is, and see one magnified under a lens.

"He was a unique individual, and to have the organ that's most associated with intelligence of this great man is a wonderful opportunity," Dhody told Livescience. "What we're hoping to do is to showcase this and to really talk about the brain and the physiology."

Hand-me-down brain

The brain slices have had a strange journey since Einstein's death in 1955 at age 76 from an abdominal aneurism. The pathologist who completed Einstein's autopsy, a man named Thomas Harvey, removed Einstein's brain as part of standard autopsy procedure -- and then failed to put it back. Harvey later said that Einstein's son had given him permission to take the scientist's brain, but the Einstein family disputed that claim.

Harvey lost his job over the Einstein scandal, but he kept the brain. Over the years, he would send portions to neuroscientists trying to understand if something about the man's brain structure made him so brilliant. It's some of these hair-thin sections that are now on display at Philadelphia's Mütter Museum and the Historical Medical Library. [Inside the Brain: A Journey Through Time]
"Dr. Harvey had done some of his training in Philadelphia, and he came back to Philadelphia and asked specifically for one of his slide technicians," Dhody said. "All the boxes and all the series of slides were done in Philadelphia."

As a "thank you" to the Philadelphia pathologist who allowed the slides to be made in his lab, Harvey gifted him a box of 46 slides of ultra-thin brain slices, each just 20 to 50 microns thick. (For comparison, an average human hair is about 100 microns in diameter.)

When that pathologist, William Ehrich, died in 1967, his widow passed the slides to another local doctor, Allen Steinberg, who, in turn, gave the slides to Lucy Rorke-Adams, the senior neuropathologist at the Children's Hospital of Philadelphia. Rorke-Adams recently decided to donate the slides to the Mütter Museum, which is run by the College of Physicians of Philadelphia.

"I think the time has come to turn them over to the College and the Mütter Museum as they are a part of medical history," Rorke-Adams said in a statement.


Close-up scan of one of a slide of Albert Einstein's brain.
(Credit: Evi Numen, for the MÃ?¼tter Museum of The College of Physicians of Philadelphia, 2011) 
Einstein's brain will be in good company at the museum, which also boasts displays of a tumor from President Glover Cleveland and neck tissue from John Wilkes Booth. The goal, Dhody said, is to let visitors see what the brain of a genius looks like, while emphasizing that no one really knows if anything about Einstein's brain structure made him great.

Various researchers have uncovered out-of-the-ordinary features in the brain, including extra support cells called glial cells in some regions involved in complex thinking. But human anatomy is notoriously individualistic, and it's tough to say whether any given aspect of Einstein's brain structure made him a genius, was the result of his genius, or was just a quirk. [Life's Extremes: Smart vs. Dumb]

According to Rorke-Adams, Einstein's brain does look unusually young on a microscopic level. He lacks a build-up of lipofuscin, cellular waste associated with aging. His blood vessels are also in remarkably good shape.

"He died at the age of 76, so he was an older individual," Dhody said. "But Dr. Rorke-Adams said looking at his brain, you would think it was the brain of a younger person."

The brain will stay on display for the foreseeable future at the museum, Dhody said, and the museum may consider loaning out slides for future neuroscience research. In the meantime, the museum staff hopes to expand the exhibit with micro-level photographs of the slides.

"It's Einstein's brain!" Dhody said. "It's one of the greatest minds of the 20th century in our museum. What more can you ask for?"


Creative Genius: The World's Greatest Minds
Top 10 Mysteries of the Mind
10 Things You Didn't Know About the Brain


Livescience.com. All rights reserved.
 
 

BPA levels soar after eating canned soup: Study

By David W Freeman

November 23, 2011 10:36 AM

(CBS) Talk about stirring up controversy. A new study shows that the urine of people who consume canned soup can contain surprisingly high levels of bisphenol A (BPA), a hormone-disrupting compound linked to health problems including heart disease, diabetes, and obesity.

PICTURES - BPA: 7 secret sources


People who consumed one serving of canned soup a day for five days had a more than 1,000 percent increase in urinary BPA over people who consumed fresh soup for five days, the study showed.

"We've known for a while that drinking beverages that have been stored in certain hard plastics can increase the amount of BPA in your body," study author Jenny Carwile, a doctoral student at Harvard School of Public Health, said in a written statement. "This study suggests that canned foods may be an even greater concern, especially given their wide use."

BPA is used in the linings of metal food and beverage cans as well as in certain plastic bottles and dental sealants.


Seventy-five volunteers were recruited for the study. Every day for five days, one group consumed 12 ounces of canned vegetarian soup and another consumed 12 ounces of fresh vegetarian soup. After a two-day "washout period," the groups switched soups and spent another five days slurping away.



(Credit: istockphoto)


The researchers found that urine samples collected from the canned soup group spiked 1,221 percent over BPA levels over samples collected from the fresh soup group.

The study used Progresso brand canned soup, but the researchers told WebMD that "it's not about the brand of soup or canned soup, it is about the cans."

The researchers noted that the high levels of BPA might be transient and called for more research - but said that the time may have come to get BPA out of cans. As study author Karin Michels, associate professor in the school's department of epidemiology, put it in the statement, "It may be advisable for manufacturers to consider eliminating BPA from can linings."

A spokesman for General Mills, the company that makes Progresso soups, wasn't buying it.

"Scientific and governmental bodies worldwide have examined the science and concluded that the weight of evidence support the safety of BPA, including comprehensive risk assessments in Japan and in the European Union," Kirstie Foster, told Bloomberg Businessweek in an email.

A member of a conservative think tank in Washington, D.C. echoed those sentiments. Jeff Stier, a senior fellow at the National Center for Public Policy Research, told WebMD that the study "does nothing to substantiate claims that trace levels of BPA - even from daily canned soup consumption - have any effect on health."

The study was published online Nov. 21 in the Journal of the American Medical Association.


Wednesday, 23 November 2011

Robin Gibb is battling liver cancer

 November 21, 2011 11:36 AM

Robin Gibb's liver cancer spotlights deadly disease

By David W Freeman

.


robin gibb
Robin Gibb in Monte Carlo, Monaco on May 18, 2010.
(Credit: Getty Images)

(CBS) Robin Gibb of the Bee Gees is battling liver cancer. The 61-year-old pop has legend was diagnosed several months ago and last week was briefly hospitalized in England before returning to his home there, the Guardian reported.

Gibb has looked gaunt in recent months, and his condition is "not good," a family friend told the Mirror. "You can use your wealth to call in the best experts, but sometimes no amount of fame, prestige and money can change things when it comes to cancer."

Liver cancer, a.k.a. hepatocellular carcinoma, can be especially hard to beat. The prognosis for the disease is poor, because surgery can completely remove the cancer in only 10 percent to 20 percent of cases. If the cancer cannot be removed, the disease usually proves fatal within six months.

Liver cancer is more common in men and in people over the age of 50. Common causes of the disease include hepatitis B or C, autoimmune diseases of the liver, chronic inflammation of the liver, and an iron overload condition known as hemochromatosis as well as alcohol abuse.

Gibb's wife, a "druid priestess," has suggested alternative remedies for her husband, according to the Guardian. In addition to surgery, mainstream treatments for liver cancer include chemotherapy and radiation as well as Nexavar, an oral medication that blocks tumor growth. Patients whose cancer is diagnosed early can be helped by a liver transplant - but few patients are diagnosed early.

The National Cancer Institute has more on liver cancer.


http://www.cbsnews.com/8301-504763_162-57328751-10391704/robin-gibbs-liver-cancer-spotlights-deadly-disease/