The researchers found that hip fracture patients who were very thin or malnourished had the greatest increased costs, following by those with pulmonary circulatory disorders that affect blood flow to and from the lungs.

The study was published in the Journal of Bone and Joint Surgery.

“This study provides reason for encouragement, but plans to now get such a treatment would be premature,” said stem cell expert Paul Knoepfler of the University of California, Davis, who had no role in the research.

Each patient was injected in one eye with cells that were derived from embryonic stem cells at the University of California, Los Angeles. Both of the patients showed some improvements in reading progressively smaller letters on an eye chart after four months.

“One must be very careful not to overinterpret the visual benefit,” said Vanderbilt University retina specialist Dr. Paul Sternberg, who is also the president-elect of the American Academy of Ophthalmology.

The findings were published online Monday by the journal Lancet.

According to a new study by Belgian investigators, vitamin D supplements do not seem to help most patients suffering from chronic obstructive pulmonary disease (COPD).

“There are studies showing that patients with vitamin D deficiency are more susceptible to different inflammatory, infectious and autoimmune diseases, and most likely COPD,” said lead investigator Dr. Wim Janssens, from the respiratory division at University Hospital Gasthuisberg in Leuven.

“Vitamin D restoration to normal levels in COPD patients does not reduce the number of exacerbations, does not reduce the infections and inflammation,” Janssens said. “But this does not allow us to conclude that we need to give all COPD patients these high doses of vitamin D; it just strengthens us in the idea that severe deficiency many enhance inflammation in COPD,” Janssens said.

“New studies are needed to confirm what we found,” he added.

The report was published in the Jan. 17 issue of the Annals of Internal Medicine.

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In a study that randomly assigned 404 women to exercise or not, it was found by the researchers that lower-intensity activity — walking on a treadmill or pedaling an exercise bike — curbed what is known as exercise blood pressure.

“Try to keep finding ways to fit more physical activity into your life,” said lead researcher Damon L. Swift, of the Pennington Biomedical Research Center in Baton Rouge, Louisiana.

Findings of the study were reported in the journal Menopause.

Present guidelines emphasize on maximum units of alcohol that may be safely consumed but people sometimes struggle to understand how many units there are in their glass of wine or pint of beer.

“We suggest that, if daily guidelines are retained, the Government consider simplifying the guidelines so that, as is the case in Scotland, all individuals are advised to take at least two alcohol-free days a week,” the report said.

“This would enforce the message that drinking every day should be avoided, and would helpfully quantify what “regular” drinking means to the public,” it added.

“Overall, at the population level, the results seem to suggest that past or even current illicit drug use is not necessarily associated with impaired cognitive functioning in early middle age,” said lead researcher Alex Dregan, of King’s College London. There was no evidence that current or past drug users had poorer mental performance, according to the study.

“In a Western population of occasional drug users, this is what you’d expect to see,” said John Halpern, a psychiatrist at Harvard Medical School and McLean Hospital in Belmont, Massachusetts.

The study appeared in the American Journal of Epidemiology.

The findings are similar to those of past research that found red meat can be fine in moderation. The findings were published in the American Journal of Clinical Nutrition.

“It isn’t all that different from what people were saying,” said Dr. Elizabeth Jackson, assistant professor of medicine at the University of Michigan Health Systems, who was not involved in the study.

“It was very well done, and that is one of the things that are difficult with nutrition science,” said Jackson. “You could never do data like this on thousands of patients.”

“I think it’s really important that the public understands that and is not going to go hog-wild with beef,” said Joan Salge Blake, a clinical associate professor at Boston University’s Sargent College of Health and Rehabilitation Sciences and an Academy of Nutrition and Dietetics spokesperson.

“We just have to make sure that the portions stay lean and small, and that it’s a part of a heart-healthy diet,” Salge Blake told Reuters Health.

“Mengniu would like to express our sincere apologies to consumers,” the company said. “We will draw a big lesson from this incident and will work harder to meet all national and corporate standards on quality in the future,” it said.

Mengniu said in a statement posted on its website that a batch of products at a plant in the southwestern province of Sichuan found by the government quality watchdog to contain aflatoxin has been destroyed.

“People who are obese may have a harder time with balance,” said Christine L. Himes, of Syracuse University in New York and one of the researchers on the new study. “It’s just harder for obese people to recover from injury,” Himes said. “They’re going to be in poorer physical shape to begin with.” “This is just another reason that obesity needs to considered an important public health problem,” Himes noted.