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Jul 12
New study disputes link between Facebook and depression
Studies have long linked Facebook to negative side-effects, including depression among adolescents.

However, new research from the University of Wisconsin has found no link between social media use and the likelihood of depression.

The researchers surveyed 190 University of Wisconsin-Madison students, all between the ages of 18 and 23.
Over the course of a week, the students were texted questions asking if they were online, how long they'd been online and what they were doing.

The students were divided into three groups depending on how much time they spend on Facebook. High use was determined as spending two hours or more on the site over the week.

The participants later completed a survey which screens for symptoms of clinical depression.

Findings released on Tuesday concluded that the students who spent the most time on Facebook were no more likely to be depressed than those who spent just a few minutes a day on the site.

Last year the American Academy of Pediatrics warned that teenagers can suffer from 'Facebook depression' after becoming obsessed with the social networking website.

According to AAP, being shunned on a social networking website can be more harmful than if a child is ignored by their friends in real-life.

AAP lead researcher Dr Gwenn O'Keeffe, a Boston-based paediatrician, said that social media had the power to 'interfere with homework, sleep and physical activity' among the young.

Lauren Jelenchick, who led the latest study with Dr Megan Moreno, told the Huffington Post she didn't believe there was enough research to support a link between Facebook and depression.

'If you have a teen and they're spending a lot of time on Facebook but their grades are fine and they're involved in school and they have a good group of friends ... that's not necessarily a bad thing.'

After the AAP report last year, Dr Moreno said parents should not think that the site 'is going to somehow infect their kids with depression'.

Jul 12
Frankincense may help cure asthma, arthritis
Since the ancient world the aromatic fragrance of burning frankincense has been part of many religious ceremonies and is still used as a means to indicate special festive atmosphere in the church today.

But frankincense can do much more.

"The resin from the trunk of Boswellia trees contains anti-inflammatory substances," said Professor Dr. Oliver Werz of the Friedrich Schiller University Jena (Germany).

The chair of Pharmaceutical and Medical Chemistry is convinced that these substances can be very beneficial in therapies against diseases like asthma, rheumatoid arthritis or atopic dermatitis.

However, so far the active substances in frankincense cannot at present be found in drugs in German pharmacies, as the pharmacological impact of frankincense hasn't been thoroughly investigated.

"Although Boswellia resin has been used for thousands of years in the Ayurvedic medicine for instance, the clinical studies we have so far are not suffice for a license in Germany and Europe," Professor Werz explained.

But that could change. As part of a mutual project with partners of the University Saarbrucken and a start-up company, Professor Werz and his team examined the curative effect of frankincense.

In this project the researchers were able to show where exactly the boswellic acids which are responsible for the impact of the ingredients of the Boswellia resin actually interfere in the process of inflammation.

"Boswellic acids interact with several different proteins that are part of inflammatory reactions, but most of all with an enzyme which is responsible for the synthesis of prostaglandin E2," Oliver Werz pointed out.

Prostaglandin E2 is one of the mediators of the immune response and plays a decisive role in the process of inflammation, in the development of fever and of pain.

"Boswellic acids block this enzyme efficiently and thereby reduce the inflammatory reaction," the Jena pharmacist explained.

With this, not only a targeted use in the therapy of inflammatory diseases is conceivable. It can also be expected that boswellic acids have less side effects than today's prevalent anti-inflammatory treatments like diclofenac or indometacin. Their impact is less specific, they can increase the risk of stomach ulcers and can negatively affect renal function.

In their latest study the researchers around Professor Werz additionally compared the resin of different kinds of frankincense in its anti-inflammatory impact.

There are more than ten Boswellia species in the world. The most well-known and widely-used one is the Boswellia serrata from Northern and central India.

"We were able to show that the resin of the Boswellia papyrifera is ten times more potent," Professor Werz explained a further result of his research.

This species mostly occurs in the Northeast of Africa (Ethiopia, Somalia) and on the Arabian Peninsula (Yemen, Oman).

Whether frankincense will become accepted, is indeed not only due to the outcome of the clinical examination, which is yet to come.

"Boswellic acids exclusively occur in the resin of Boswellia trees and are very difficult to produce synthetically," Werz pointed out.

Therefore these trees are the only source of these promising active ingredients. However Boswellia trees are already an endangered tree species. In many places they are just being used as heating fuel.

"Thereby without sustained protection not only plant species are endangered but at the same time medicine loses promising active ingredients," Professor Werz warned.

Jul 11
Stem cell jab shows promise in arthritis cure
A breakthrough treatment for arthritis using stem cells derived from body fat could see the end of years of pain for millions of sufferers.

The patients suffering from the so far incurable condition may feel the benefit within two weeks and, if used early enough, could avoid the need for joint replacement operations, scientists behind the new technique claim.

Studies have shown that the fat-derived stem cell therapy has been startlingly successful in the treatment of osteoarthritis in pets and it is now being used on humans.

Doctors treat the joint and tendon disease by injecting the stem cells into the affected area, replacing lost or damaged cells.

The jab reduces inflammation and encourages the repair and regrowth of healthy tissue inside the joint.

Although the treatment is still in its infancy, early results are very encouraging as they show that it may help cartilage regeneration, delaying the need for joint replacement by 10 or 20 years.

If the disease is treated at an early stage, it might even halt its progress altogether.

"There are six million people in the UK in constant pain from osteoarthritis," the Daily Express quoted Judith Brodie, chief executive of Arthritis Care as saying.

"This new stem cell therapy, if the trials continue to show success, could be transformational.

"While the long-term effects are unknown, and there should be caution due to the early stage of development, Arthritis Care welcomes progress in treating this painful condition," Brodie said.

A spokeswoman for Arthritis Research UK said that the use of adult stem cells to regenerate cartilage was showing early promise, but was still at an extremely nascent stage.

"In the UK our own scientists are shortly to begin a study that involves taking cells derived from a patient's bone marrow via key-hole surgery, grow them in the lab and re-inject them back into the patient's osteoarthritic knee, which is also a very exciting prospect," the spokeswoman said.

"At the moment stem cells are not the 'magic bullet' and they don't solve the underlying problem of osteoarthritis, which still needs to be addressed.

"But they certainly have huge potential. We just need to learn how to harness it properly," the spokeswoman said.

Scientists said the treatment is suitable for anyone with early to mid-stage osteoarthritis, but is unlikely to have any effect on seriously damaged joints.

The 6,000 pounds treatment takes around three hours to carry out and does not need an overnight stay. Surgeons remove about seven ounces of stomach fat in a procedure similar to liposuction.

The stem cells are then harvested from the patient's fat before being injected directly into the knee, after which the patient is free to go home.

Some sufferers reported that the pain they endured before the operation disappeared once the stem cells were injected.

Jul 11
World Population Day: Why is it significant?
The significance of the World Population Day, observed on July 11 every year, lies in the fact that the world holds 7,025,071,966 people as on July 9, 2012, a leap of over 2.5 times over the last fifty years, while earth's resources remain finite.

A huge number of people, running into billions, suffer from abject poverty, starvation, malnutrition, diseases, illiteracy, lack of access to healthcare, wars and all kinds of social, political and economic injustice.

In 1989, in its decision 89/46, the Governing Council of the United Nations Development Programme recommended that, in order to focus attention on the urgency and importance of population issues in the context of overall development plans and programmes and the need to find solutions for these issues, 11 July should be observed by the international community as World Population Day.
Popular interest in the Five Billion Day on July 11, 1987, the date on which the world's population reached five billion people, is said to have acted as the inspiration.

Since framing of the Millennium Development Goals (MDGs), the themes of the annual event have centred around one or more of these goals. The theme of the World Population Day 2012 is "Universal Access to Reproductive Health Services".

Many activities and campaigns will call attention to the essential part that reproductive health plays in development of communities.

Jul 10
HPV Vaccine Protects Those Who Don't Get the Shot Through 'Herd Immunity'
The controversial vaccine for human papillomavirus (HPV) has lowered rates of infection, both in women who were vaccinated and in those who did not receive the vaccine, according to a new study published in the journal Pediatrics.

This phenomenon is dubbed 'herd immunity' - a term that suggests that once a critical number of people has received a vaccination, the larger community can be protected because there's a smaller chance of an outbreak.

In a study of young women ages 13 to 16, researchers at Cincinnati Children's Hospital compared the prevalence of HPV in two groups. In 2006 and 2007, they looked at the rate of HPV infections among 368 girls who had sexual contact but were not vaccinated. In 2009 and 2010, they analyzed the prevalence of HPV among 409 young women, more than half of whom had received at least one dose of the vaccine.
Looking at pre- and post-vaccination HPV rates, they found that the type of HPV prevented by the vaccine had decreased 58 percent overall. As expected, the decrease was highest among vaccinated young women at 69 percent, but they also saw a substantial decrease (49 percent) in the unvaccinated girls.

"Infection with the types of HPV targeted by the vaccine decreased in vaccinated young women by 69 percent," says Jessica Kahn, MD, MPH, a physician in the division of Adolescent Medicine at Cincinnati Children's and lead author of the study. "Two of these HPV types, HPV-16 and HPV-18, cause about 70 percent of cervical cancer. Thus, the results are promising in that they suggest that vaccine introduction could substantially reduce rates of cervical cancer in this community in the future."

Kahn said the decrease among vaccinated young women was "especially remarkable" because many were sexually experienced and exposed to HPV before vaccination, and many only underwent one dose of the vaccine when three are recommended for the most protection, according to CBS News.

The study is "good news that comes surprisingly soon," Dr. William Schaffner, chairman of the department of preventive medicine at Vanderbilt University, told MyHealthNewsDaily. Schaffner said he would have expected a larger portion of the population needed to be vaccinated, including boys, to see herd immunity. The study is a reminder that "vaccination is not just about the individuals getting vaccinated...it's about everyone else in the community," Schaffner said.

Jul 10
For healthier kids, get a cat or dog, study suggests
Kids who grow up with cats or dogs tend to get fewer respiratory infections during their first year of life, according to a new study from Finland.

Researchers followed 397 children from pregnancy through their first year of life, and found that those living with dogs developed 31 percent fewer respiratory tract symptoms or infections, 44 percent fewer ear infections and received 29 percent fewer antibiotic prescriptions.

Contact with cats was also linked with fewer infections, but the effect was not as drastic as contact with dogs - for example, infants living with cats were 2 percent less likely to need antibiotics.

"We speculated that maybe the dogs somehow can bring dirt or soil inside the house, and then the immune system is strengthened, or maybe it's something about the animals themselves," said study researcher Dr. Eija Bergroth, a pediatrician at the Kuopio University Hospital in Finland.

The link between pets and fewer infections held even when researchers took into account factors known to affect infants' infection rates, such as breast-feeding and number of siblings. Still, the researchers acknowledged that couldn't account for all such factors, and noted that they found a correlation, not a cause-and-effect relationship.

Jul 09
New anti-maleria drug approved for treatment
A new drug SynriamTM, developed by a team of researchers and considered to be a breakthrough in dealing with cases of malaria, has been approved for treatment of adults in India.

Invented by a team of researchers at the University of Nebraska Medical Center (UNMC), the medicine is considered to be a significant invention, especially in the wake of traditional drugs increasingly proving ineffective against the deadly malarial parasite.

Jul 09
Arrow removed without anesthesia
In a rare surgery, doctors of a government hospital here have removed an iron arrow pierced through the chest of a Bonda tribal without anaesthesia, doctors said today. The surgery had to be conducted on Soma Chalan, hit by the arrow on his back at Mudulipada three days ago, as soon as he was brought to the Malkangiri district hospital. As the hospital had no anaesthesia at that time, his critical condition did not permit any referral to the nearest MKCG Medicl College Hospital at Berhampur, about 500 km from here, surgeon Sapan Kumar Dhinda said. "He would have died on way to Berhampur because his condition was very critical. I took a risk and conducted the very difficult operation", Dhinda said. Chief District Medical Officer, Malkangiri, Sasibhushan Panda said, "It was one of the rare surgeries conducted under difficult circumstances. Dhinda took it as a challenge and saved Soma's life". PTI COR SKN PR

Jul 07
Brushing your teeth with bacteria from seaweed could be more effective than toothpaste
Microbes found on seaweed could provide an unexpected weapon in the fight against tooth decay, scientists have said.

They used an enzyme isolated from the marine bacterium Bacillus licheniformis which they were originally researching for cleaning ships' hulls.

Newcastle University scientists claim that the enzyme can 'cut through' plaque on teeth and clean hard-to-reach areas.
Instead, the Newcastle University team will tell the Society for Applied Microbiology Summer Conference that it could have a range of medical applications, including teeth cleaning.

While toothpastes are effective, there are still hard-to-reach areas between teeth where the bacteria in plaque can erode enamel, causing cavities.

Dr Nicholas Jakubovics of Newcastle University's School of Dental Sciences believes better products offering more effective treatment can be made using the enzyme.

He said: 'Plaque on your teeth is made up of bacteria which join together to colonise an area in a bid to push out any potential competitors.

'Traditional toothpastes work by scrubbing off the plaque containing the bacteria - but that's not always effective - which is why people who religiously clean their teeth can still develop cavities.
'Work in a test tube has shown that this enzyme can cut through the plaque or layer of bacteria and we want to harness this power into a paste, mouthwash or denture cleaning solution.'

When threatened, bacteria shield themselves in a slimy protective barrier known as a biofilm.
It is made up of bacteria held together by a web of extracellular DNA which binds the bacteria to each other and to a solid surface - in this case in the plaque around the teeth and gums.

The biofilm protects the bacteria from attack by brushing, chemicals or even antibiotics.

But after studying Bacillus licheniformis, which is found on the surface of seaweed, Newcastle University scientists found that when the bacteria want to move on, they release an enzyme which breaks down the external DNA. That breaks up the biofilm and releases the bacteria from the web.

Professor Burgess, who led the research, said: 'It's an amazing phenomenon. The enzyme breaks up and removes the bacteria present in plaque and importantly, it can prevent the build up of plaque too.

'When I initially began researching how to break down these layers of bacteria, I was interested in how we could keep the hulls of ships clear but we soon realised that the mechanism we had discovered had much wider uses.

'If we can contain it within a toothpaste we would be creating a product which could prevent tooth decay.

'This is just one of the uses we are developing for the enzyme as it has huge potential such as in helping keep clean medical implants such as artificial hips and speech valves which also suffer from biofilm infection.'

The team will now look to collaborate with industry to carry out more tests and product development.

Jul 07
Strawberries prevent heart disease, diabetes
Strawberries, the traditional summer treat, could offer unexpected health benefits of preventing development of heart disease and diabetes, says a study.

University of Warwick scientists have been studying the beneficial effects of strawberries on cardiovascular health, particularly around how they prevent the development of heart disease and diabetes.

Paul Thornalley, professor at the Warwick Medical School, heads the team that discovered extracts from strawberries positively activate a protein in our bodies called 'Nrf2′, which is shown to increase antioxidant and other protective activities.

This protein works to decrease blood lipids and cholesterol, the very things which can lead to cardiovascular problems, said a university statement.

Eating strawberries has previously been found to counter post-meal blood glucose and low density lipoprotein, or 'bad' cholesterol and therefore decrease risk of diabetes and heart disease, but this is the first time that strawberry extracts have been proved to actively stimulate proteins that offer us protection against disease.

Thornalley explained: " We've discovered the science behind how strawberries work to increase our in-built defences to keep cells, organs and blood vessels healthy and which can reduce the risk of developing cardiovascular problems such as heart disease and diabetes."

Screening and math modelling techniques developed at Warwick can now take this research further to help identify the best varieties of strawberries, how they are served or processed and how many strawberries should be eaten for optimum health benefit.

Thornalley will be presenting these findings at the 16th biennial meeting for the Society for Free Radical Research International (SFRRI), Imperial College London.

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