Tuesday, October 2, 2012

Foods For Longevity

Broccoli For Cancer Protection

Broccoli and other cruciferous vegetables are full of sulforaphane and other antioxidants that help to protect healthy cells from damage caused by free radicals.
But when it comes to the veggies, raw may be better: recent research has found that boiling in water has a "leaching effect."

Whole Grains For Cardiovascular Health



Whole grains offer a variety of antioxidants and vitamins, and are packed with fiber, known to help protect against high cholesterol and regulate blood sugar levels, which can safeguard against diabetes.

And one type of whole grain in particular -- oats -- has a unique antioxidant called avenanthramides that can offer additional protection against cholesterol.


Berries For Brain, Bone And Brawn



Not only are berries good for extending life -- they improve the quality of later years. Berries are chock full of antioxidants that help protect against free radical damage, but as Whole Living reported, one antioxidant in particular -- anthocyanins -- is particularly useful for brain function, balance and muscle retention.


Dark Chocolate For Anti-Inflammation


Dark chocolate is full of inflammation-reducing flavonoids, a compound that also has antioxidant properties and helps prevent blood clots.
But reducing inflammation is its real longevity trick, as research shows that molecular inflammation may be responsible for much aging and cell death.


Tomatoes For Cancer Prevention


Tomatoes are a great source of lycopene, the fat-soluble nutrient that helps to protect against some types of cancer, like prostate, lung and stomach cancers.


Beets For Betaine Power


Beets are rich in betaine, a compound associated with lower markers of inflammation, according to the latest research in the American Journal of Clinical Nutrition.


Walnuts For Lower Cholesterol


Walnuts are a great source of alpha linolenic acid (ALA), which is a type of omega-3 fatty acid associated with reduced inflammation

Cherries Could Lower Risk Of Gout Attack




A new study found that patients with gout who consumed cherries over a two-day period showed a 35% lower risk of gout attacks compared to those who did not eat the fruit. Findings from this case-crossover study published in Arthritis & Rheumatism, a journal of the American College of Rheumatology (ACR), also suggest that risk of gout flares was 75% lower when cherry intake was combined with the uric-acid reducing drug, allopurinol, than in periods without exposure to cherries or treatment.

Previous research reports that 8.3 million adults in the U.S. suffer with gout, an inflammatory arthritis triggered by a crystallization of uric acid within the joints that causes excruciating pain and swelling. While there are many treatment options available, gout patients continue to be burdened by recurrent gout attacks, prompting patients and investigators to seek other preventive options such as cherries. Prior studies suggest that cherry products have urate-lowering effects and anti-inflammatory properties, and thus may have the potential to reduce gout pain. However, no study has yet to assess whether cherry consumption could lower risk of gout attacks.

For the present study, lead author Dr. Yuqing Zhang, Professor of Medicine and Public Health at Boston University and colleagues recruited 633 gout patients who were followed online for one year. Participants were asked about the date of gout onset, symptoms, medications and risk factors, including cherry and cherry extract intake in the two days prior to the gout attack. A cherry serving was one half cup or 10 to 12 cherries.

Participants had a mean age of 54 years, with 88% being white and 78% of subjects were male. Of those subjects with some form of cherry intake, 35% ate fresh cherries, 2% ingested cherry extract, and 5% consumed both fresh cherry fruit and cherry extract. Researchers documented 1,247 gout attacks during the one-year follow-up period, with 92% occurring in the joint at the base of the big toe.

“Our findings indicate that consuming cherries or cherry extract lowers the risk of gout attack,” said Dr. Zhang. “The gout flare risk continued to decrease with increasing cherry consumption, up to three servings over two days.” The authors found that further cherry intake did not provide any additional benefit. However, the protective effect of cherry intake persisted after taking into account patients’ sex, body mass (obesity), purine intake, along with use of alcohol, diuretics and anti-gout medications.

In their editorial, also published in Arthritis & Rheumatism, Dr. Allan Gelber from Johns Hopkins University School of Medicine in Baltimore, Md. and Dr. Daniel Solomon from Brigham and Women’s Hospital and Harvard University Medical School in Boston, Mass. highlight the importance of the study by Zhang et al. as it focuses on dietary intake and risk of recurrent gout attacks. While the current findings are promising, Gelber and Solomon “would not advise that patients who suffer from gout attacks abandon standard therapies.” Both the editorial and study authors concur that randomized clinical trials are necessary to confirm that consumption of cherry products could prevent gout attacks.

Source: scienceblog.com

How To Stretch Safely For Flexibility After 50


 I am looking to get back into martial arts at 58. How do I get my agile flexibility back without tearing my muscles while stretching? -- David 

  It's true that as we age, flexibility becomes an even bigger concern. All of the experts we interviewed agreed that older bodies come with an ultimatum: Use it or lose it. If you aren't maintaining an active lifestyle, you can expect accelerated muscle loss, decreased stamina, strength, range of motion, balance and flexibility.

 So getting into a new fitness routine or revisiting or ramping up an old one, like Martial Arts, is a really great idea. But David is right to be concerned about flexibility in middle age. "There are normal things that happen with aging -- naturally occuring phenomena," says Patrice Winter, a clinical physical therapist and spokesperson for the American Physical Therapy Association. "One of those is flexibility -- if you don’t stretch and move, your joints start to get less flexible. It's really important to keep joints moving."

 And some parts of our bodies suffer more than others. "The older we get, sitting more, our hamstrings tend to get tight. The muscles in the back of the calf, around our Achilles' tendons," says A. Lynn Millar, Ph.D., a physical therapist and professor of physical therapy at Winston-Salem State University in North Carolina. "The other area that people might not notice as much is the chest muscles. If we’re working at a desk, we bring our head forward and round our shoulders, so the muslces in the front of our chest -- our pectoral muscles -- get shortened and tight while our back muscles loosen."

There are so many kinds of stretching that it can be a bit confusing. The key is to warm up the muscle and then push its limits in terms of pliability and range of motion. John McCarthy, a physical therapist and an associate professor of physical therapy at the University of Alabama, Birmingham, recommends doing either static or dynamic stretching exercises. Static stretching, or taking a position that elongates the muscle and holding it, is beneficial because it's extremely low risk for injury, he says, while still improving range of motion and flexibility. Because static stretching doesn't involve warming up the muscles first, it's best to do the stretches during or following a cardio or strength-training workout.

 Dynamic stretching, by contrast, involves taking a position at the end range of motion, applying slow, steady pressure to push that boundary and then returning. Because it is a series of exercises, it does double duty -- warming up the muscle and then working to enhance flexibility and range of motion.

Regardless of your chosen type of stretching, McCarthy recommends consulting a physical therapist or well-regarded book for specific moves. Millar suggests this routine: choose stretches based on where you feel tightness. For static stretches, the typical recommendation is 30 seconds per stretch, performed in three reps. "You'll see an improvement in the range of motion even if you do each exercise once for 15 seconds," she says, but the benefit is greater with increased duration and repetition. Although most official guidelines recommend stretching three times a week, Millar says that daily stretching is more effective and not dangerous.

 For dynamic stretching, think about your activity and how you will use your body. For example, if you'll take on a martial arts class, you might know you'll be throwing punches and high kicks. Before you get started, do some slow motions to simulate the positions you'll take during the course of the class.

 But how do you know if you've taken a stretch too far? You should still be able to breathe and talk, says Winter. If you have to hold your breath, you're going too far. Millar says that you shouldn't feel your muscles trembling -- a sign that you're stretching too deeply. Dial it back until you're feeling a gentle pull, but no burning or pain, she says.

 One caveat: many older patients experience tightness around the hips and other joints. While this is often muscular, it can occasionally be a sign of arthritis-associated tightness in the joint. To differentiate, Millar, who is also a fellow of the American College of Sports Medicine, recommends checking your hamstrings: if you can lie flat on the ground and lift your leg to a 90-degree angle, the problem is unlikely to be inflexibility and is instead arthritic stiffness in the knee or hip, she says. If you suspect the latter, see a physician for a medical evaluation.

HIV 'made' new deadly Salmonella


An epidemic of a deadly strain of Salmonella has swept across the whole of Africa by "taking advantage" of the spread of HIV, according to an international team of researchers. 

 Their study, published in Nature Genetics, is the first to identify the separate cases as a single epidemic

. One in four people in Africa infected with the strain died. It is thought to be the first time a single strain of an infection has spread so widely in the wake of HIV.

Cases of this form of invasive non-typhoidal Salmonella have been recognised in Africa for more than a decade. It causes fever, headaches, respiratory problems and sometimes death.
 
The research team analysed the genetic code of 179 batches of Salmonella from different parts of Africa and the rest of the globe. Using techniques similar to a large-scale DNA paternity test, they were able to construct the strain's "family tree" and then how it spread.

 It happened in two waves. The first started in south-eastern Africa about 52 years ago and the second wave started 35 years ago from the Congo Basin.

 Prof Gordon Dougan, from the Sanger Institute in Cambridge in the UK, told the BBC: "It quite clearly parallels the emergence of HIV in Africa."

HIV attacks the immune system and leaves people more vulnerable to other infections. It is thought the strain of Salmonella Typhimurium took advantage of this weakness and spread. The research team said the bacterium was given the chance to "enter, adapt, circulate and thrive". T

here is poor monitoring data for the disease across the whole of the continent, but Prof Dougan said it was affecting "thousands and thousands" of people and that 98% of adult cases were in people with HIV.

 Continue reading the main story “  It's actually quite a huge problem and it seems to be getting worse because there are many susceptible people, it's got a grip in Africa”

 Prof Brendan Wren London School of Hygiene and Tropical Medicine He said this spread of Salmonella Typhimurium had been different to that of other infections commonly associated with HIV, as it had been a single epidemic "people were completely unaware" of and there "were not really any other examples" of that happening.

 Dr Melita Gordon, a gastro-enterologist at the University of Liverpool, said: "It's the first time this has been described right across a continent in such an obvious way." She added: "The highest mortality associated with the disease is 80%. What's happened over the years is mortality has fallen down and down and down to between 20% and 25% as doctors inside Africa recognise it."

The genetic analysis also showed the strain was resistant to the first choice antibiotic, chloramphenicol, which means more expensive drugs would be needed to treat the infection. It is thought that improving HIV treatment across Africa could reduce the prevalence of the Salmonella infection, as it would reduce the number of people with vulnerable immune systems.

However, the researchers urged "vigilance" in case the Salmonella strain mutated again to become able to infect people with healthy immune systems.

Commenting on the study, Prof Brendan Wren, from the London School of Hygiene and Tropical Medicine, told the BBC: "It's actually quite a huge problem and it seems to be getting worse because there are many susceptible people, it's got a grip in Africa.

 "HIV, I think it's fair to say, provided a springboard for it to take off." However, he thought the disease was "near its peak" as HIV was more controlled in other continents giving it little room to spread.