Tag Archives: mice

Cellphones may protect brain from Alzheimer’s

Cellphones may protect brain from Alzheimer’s

A study in mice suggests using cellphones may help prevent some of the brain-wasting effects of Alzheimer’s disease, U.S. researchers said on Wednesday.

After long-term exposure to electromagnetic waves such as those used in cell phones, mice genetically altered to develop Alzheimer’s performed as well on memory and thinking skill tests as healthy mice, the researchers wrote in the Journal of Alzheimer’s Disease.

The results were a major surprise and open the possibility of developing a noninvasive, drug-free treatment for Alzheimer’s, said lead author Gary Arendash of the University of South Florida.

He said he had expected cell phone exposure to increase the effects of dementia.

“Quite to the contrary, those mice were protected if the cell phone exposure was stared in early adulthood. Or if the cellphone exposure was started after they were already memory- impaired, it reversed that impairment,” Arendash said in a telephone interview.

Arendash’s team exposed the mice to electromagnetic waves equivalent to those emitted by a cellphone pressed against a human head for two hours daily over seven to nine months.

At the end of that time, they found cellphone exposure erased a build-up of beta amyloid, a protein that serves as a hallmark of Alzheimer’s disease.

Cellphones, Cellphones Health, Cellphones  Health Latest, Cellphones Health Information, Cellphones  Health Photo,Cellphones for Weight Health photo, Cellphones Health Latest, Cellphones Video, Cellphones  Health History, Cellphones  over Picture, history, Cellphones Asia, Cellphones asia, Cellphones  Gallery, Cellphones  for Weight gallery, Cellphones  Photo Gallery, Cellphones Picture, Malaysia Health, web Health, web Health picture, video photo, video surgery, gallery, laparoscopy, virus, flu, drug, video, Health Health, Cellphoness, photo, Drinking,health video, symptoms, Cellphones, medical, beating, diet, physical, Training, organic, gym, blister, exercise, weightloss, surgery, spiritual, eating, tips, skin, operation

Ageing heart can be prevented, say scientists

is-public-breastfeeding-offensive

Ageing heart can be prevented, say scientists

Scientists in Japan said they have uncovered evidence that shows it may be possible to delay or prevent heart failure in humans.

In a paper published in the journal Circulation, Tetsuo Shioi, lead researcher and assistant professor of medicine at Kyoto University Graduate School of Medicine in Kyoto, and his team described how they managed to suppress a variety of the P13K gene in a group of elderly mice.

The gene regulates the lifespan of cells and plays a role in the aging of tissues. In previous studies, suppression of this gene extended the lifespan of the roundworm and kept the hearts of old fruit flies healthy.

Compared with another group of mice in which the gene was left intact, mice with the suppressed gene had improved cardiac function, less fibrosis (which makes the heart inflexible) and fewer biological markers of aging.

“This study showed that aging of the heart can be prevented by modifying the function of insulin and paves the way to preventing age-associated susceptibility to heart failure,” Shioi said.

Old age is a major risk factor for heart failure, a condition when the heart is unable to pump enough blood around to supply the oxygen the body needs, the World Health Organization says.

According to the American Heart Association, 5.7 million Americans have heart failure, and nearly 10 out of every 1,000 people over age 65 suffer heart failure every year.

Mariell Jessup, professor of medicine at the University of Pennsylvania School of Medicine in Philadelphia, said older people experience a slow but gradual loss of heart cells and a host of other cellular abnormalities which make the remaining cells contract less efficiently.

“This early work in a mouse model, clarifying the role of PI3K in cardiac aging, could ultimately allow scientists to understand if human hearts are similarly influenced,” he said.

Ageing heart , Ageing heart Health, Ageing heart Health Latest, Ageing heart Health Information, Ageing heart Health information, Ageing heart  Health Photo,Ageing heart   for Weight Health photo, Ageing heart  Health Latest, Ageing heart  Health latest, Choreography for Weight  Health Story, Ageing heart  Video, Ageing heart  video, Ageing heart  Health History, Ageing heart    Health history, Ageing heart   over Picture, history, Ageing heart  Asia, Ageing heart  asia, Ageing heart   Gallery, Ageing heart   for Weight gallery, Ageing heart   Photo Gallery, Ageing heart    Picture, Ageing heart  picture, Ageing heart    Web, Malaysia Health, web Health, web Health picture, video photo, video surgery, gallery, laparoscopy, virus, flu, drug, video, Health Health, calories, photo, nutrition, health video, symptoms, Ageing heart  , medical, beating, diet, physical, Training, organic, gym, blister, exercise, weightloss, surgery, spiritual, eating, tips, skin, operation, bf1,

Antioxidants may raise diabetes risk: study

antioxidants

Antioxidants may raise diabetes risk: study

Instead of protecting against diabetes, antioxidants — compounds in foods and supplements that prevent cell damage — may actually increase the chances of getting diabetes, at least in the early stages, Australian researchers reported on Tuesday.

“In the case of early type 2 diabetes … our studies suggest that antioxidants would be bad for you,” Tony Tiganis of Monash University in Australia, whose study appears in the journal Cell Metabolism, said in a statement.

Antioxidants are protective proteins that can prevent cell damage caused by charged particles known as reactive oxygen species. This oxidative stress is thought to add to the progression of several diseases, including type 2 diabetes.

Because antioxidants fight oxidative stress, they have become a popular food supplement. But Tiganis said the picture appears to be a bit more complicated.

“We think there is a delicate balance, and that too much of a good thing — surprise, surprise — might be bad,” he said.

Tiganis’ team studied the effects of oxidative stress in mice fed a high-fat diet for 12 weeks. One group of mice lacked an enzyme known as Gpxl, which helps counter oxidative stress.

They found mice that lacked the enzyme were less likely to develop insulin resistance — an early sign of diabetes — than normal mice. But when they treated the enzyme-deficient mice with an antioxidant, “they lost this advantage and become more ‘diabetic,” Tiganis said in an e-mail.

He said oxidative stress may be working not to damage the body but to inhibit enzymes that hurt the body’s ability to use insulin early on in the development of diabetes, and that antioxidants remove this protective mechanism.

Antioxidants, Antioxidants Health, Antioxidants Health Latest, Antioxidants Health Information, Antioxidants Health information, Antioxidants Health Photo,Antioxidantsfor Weight Health photo, Antioxidants Health Latest, Antioxidants Health latest, Choreography for Weight  Health Story, Antioxidants Video, Antioxidantsvideo, Antioxidants Health History, Antioxidants Health history, Antioxidantsover Picture, history, Antioxidants Asia, Antioxidants asia, Antioxidants  Gallery, Antioxidants for Weight gallery, Antioxidants  Photo Gallery, Antioxidants Picture, Antioxidants picture, Antioxidants Web, Malaysia Health, web Health, web Health picture, video photo, video surgery, gallery, laparoscopy, virus, flu, drug, video, Health Health, calories, photo, nutrition, health video, symptoms, cancer, medical, beating, diet, physical, Training, organic, gym, blister, exercise, weightloss, surgery, spiritual, eating, tips, skin, operation, bf1,