Health News

5 Common Cold and Flu Facts, Fictions, and Surprising Half-Truths

No matter how many cold and flu seasons you’ve weathered in your years, chances are you’re still buying into some far-too-common illness myths. So before you waste another perfectly good sick day lying around in bed (instead of out playing hooky), we ran some of the most popular pieces of cold and flu wisdom past New York City physician Jennifer Collins, M.D., a diplomat of the American Board of Allergy and Immunology and Internal Medicine. Here’s how they held up.

You Shouldn’t Exercise With a Cold: Myth
Skip the gym and you’ll actually stay sick longer. “Light to moderate exercise when you’re sick can actually boost your immune system’s function,” Collins says. She recommends reducing your workout intensity by 75 to 80 percent to prevent overstressing your body. Also, make sure you wipe down your gym equipment—and your hands—both before and after use. One study in the Clinical Journal of Sports Medicine found the cold virus (a.k.a. rhinovirus) on 63 percent of fitness centers’ machines.

Chicken Soup Fends Off Colds: Fact
No wonder you still want your mom when you’re sick. Her chicken soup really does make you feel better. Research published in Chest found that chicken soup reduces the movement of certain white blood cells in the body to reduce cold symptoms. What’s more, typical chicken-soup ingredients like carrots, parsnips, celery, garlic, and onions are packed with vitamins A and D, calcium, magnesium, phosphorus, and potassium to help your immune system work at its best, Collins says.

Cold Weather Can Make You Catch a Cold: Myth
Record lows don’t cause colds—viruses do. Rhinovirus just happens to be more prevalent in the U.S. during the winter, largely due to migration patterns from other countries. In fact, the biggest contributor to cold-weather colds is found in the warm indoors where people (and their germs) are confined together, she says. You could make like a bear and hibernate—or you can just be extra-generous with the Windex this season.

Dairy Can Worsen Your Symptoms: Half-Truth
A stuffy nose can turn you into a veritable mouth-breather. The result: a dry, itchy throat. While fluids are key to quelling the irritation, and milk is thick enough to coat your throat, that’ll only make it feel even more constrained, Collins says. That doesn’t mean you have to avoid it, though. Contrary to popular opinion, dairy is not a phlegm factory. Just take your milk, cheese, or yogurt with water or juice, she says.

Flu Shots Can Give You the Flu: Myth
You finally gave in and got a flu shot, and the next day you’re in bed with a fever. Coincidence? Actually, yes. “The influenza virus infects you 48 hours before you have any symptoms, so if you get the vaccine during this time period, it will appear that the vaccine caused the flu, but you would’ve gotten sick anyway,” Collins says. Looks like you’re getting a flu shot this year

Source: Details

Risk of falls increases between cataract surgeries

Older adults with cataracts appear to double their risk of falling after surgery on their first eye and before surgery on the second, suggests a new study.

The finding that corrective eye surgery may – at least temporarily – be linked to an increase in falls comes after years of conflicting study results on the subject, researchers write in the journal Age and Ageing.

But the topic remains important as the global population ages and demand for cataract surgery increases. In Australia, where the study was conducted, cataract surgeries tripled over the past two decades.

“This study tells us that timing of cataract surgeries is very important,” Dr. Ediriweera Desapriya of the University of British Columbia in Vancouver, Canada, told Reuters Health.

Desapriya has researched falls in older adults at the Center for Clinical Epidemiological and Evaluation Research, but wasn’t involved in the new study.

“In the past, you didn’t really want to get both eye surgeries done at the same time,” Desapriya said. That was in case of problems like infection or swelling. “But now the technology has improved and complications occur less often,” he said.

For their study, Lynn Meuleners of Curtin University and her team in Perth looked back through detailed electronic health records from Western Australia’s hospitals and its death registry.

Between 2001 and 2008, nearly 28,400 older adults in the region had cataract surgery on both eyes. The researchers found 1,094 of them also took a fall serious enough to warrant a hospital visit during that period.

People waited an average of 10 months between eye surgeries. Compared to the two-year period before any cataract surgery, their chance of falling doubled between procedures.

In the two years after surgery on their second eye, people’s fall risk was 34 percent higher than before their first surgery. The risk of falling also rose with age.

Most people who fell were older than 80, women, city dwellers and were not married.

“It’s a well-conducted study,” said Stephen Lord, a senior principal research fellow with Neuroscience Research Australia in Sydney. Lord was not involved with the current study, but researches balance and falls among older adults.

“In the intervening time between surgeries, you have a person with two eyes that are no longer equal and this can lead to various effects,” Lord said – like on visual sharpness and depth of field.

“For these things, we need two eyes working together,” he told Reuters Health.

However, at least one previous randomized controlled trial – medicine’s gold standard for research – found people had fewer falls after cataract surgery, Lord said.

Based on this study, doctors could warn patients to be extra cautious after having surgery on their first eye, Desapriya said.

“It is also important to encourage patients to have a second eye cataract surgery early,” Desapriya said. “Otherwise, eyes continue to function monocularly (with just one eye) and patients lose their depth perception.”

The new research cannot point to cataract surgery as the primary cause of the falls – it only suggests they are linked.

The researchers said a limitation of their study is a lack of knowledge about people’s lifestyles, including their living situations, and co-existing eye conditions, both of which could strongly influence fall risk.

They also did not look at falls among people who had not undergone cataract surgery. Such comparisons are helpful when considering changes in risk.

“The aging population is growing rapidly in the U.S. and Canada,” Desapriya said. “And this surgery is becoming a very common clinical procedure.”

According to the National Eye Institute, more than half of all Americans have a cataract or have had cataract surgery by the time they’re 80.

Lord compared cataract surgery to a major change in prescription eyeglasses: in both cases, the brain needs time to adjust to the changes in vision.

But patients and doctors should not shy away from cataract operations, Lord said.

“The last thing we want to have happen is to prevent people from receiving cataract surgery,” Lord said. “This surgery has many benefits, such as improving quality of life, increasing a person’s participation in the community and even preventing falls in the longer term.”

“It just seems that, in the short term, there may be a problem while people adjust to their new vision,” he said.

Source: Khaleej times

Spike in U.S. measles cases shows disease still a threat: officials

The number of reported cases of measles in the United States this year is nearly three times the annual average, federal health officials said on Thursday, highlighting the continued threat of the disease 50 years after development of a vaccine.

There have been 175 measles cases so far in 2013, compared with the typical national average of about 60 cases a year, the Centers for Disease Control and Prevention said.

The federal health agency said home-grown measles were eliminated in the United States in 2000, but the disease has continued to be carried into the country from people who have traveled abroad.

The CDC said 172 of the 175 U.S. cases this year involved patients who were infected overseas or caught the disease from someone who had traveled internationally. The source of the other three infections remains unknown, the agency said.

“A measles outbreak anywhere is a risk everywhere,” CDC Director Tom Frieden said. “The steady arrival of measles in the United States is a constant reminder that deadly diseases are testing our health security every day.”

Earlier this year, the CDC linked 58 cases of measles in Brooklyn, New York, to an unvaccinated 17-year-old who had traveled to London. Twenty-three cases in North Carolina this year were tied to an unvaccinated resident who contracted the disease while on a three-month visit to India.

The CDC said 158,000 people die worldwide each year from measles.

The last measles death in the United States was in 2003, according to the agency. Before the country launched a widespread vaccination program in 1963, it had 450 to 500 measles deaths each year.

Measles is highly contagious and transmitted when an infected person breathes, coughs or sneezes. The disease can be spread even before an infected person has developed a rash from the virus.

The CDC recommends that children get two doses of vaccine for measles, mumps and rubella, starting at 12 to 15 months of age.

Increased vaccination worldwide and improving the ability of public health agencies to rapidly respond to outbreaks are keys to reducing measles and other diseases, the CDC said.

Source: Yahoo news

Monthly injection to prevent Alzheimer’s in five years

Scientists are hopeful of a breakthrough in dementia within five years – with drugs that could be given to prevent disease

Scientists are hopeful of a breakthrough in dementia within five years – with drugs that could be given preventively to delay the onset of disease.

Researchers say a new drug has shown some promise in patients with mild dementia, and might be yet more effective if given to those at risk of disease long before they show any symptoms.

Dr Eric Karran, director of research at Alzheimer’s Research UK, said scientists were “full of hope” that a breakthrough in drug therapy to prevent dementia could come within five years.

If further trials on the drug succeed, it could mean that those with a family history of dementia are given monthly injections of the drug a decade before any signs of disease show – in the same way that millions of people now take statins to ward off heart disease, he said.
Speaking ahead of a G8 summit next week on dementia, Dr Karran said trials have suggested that a drug called solanezumab may delay the onset of disease, halting problems with brain function and behaviour in those with mild dementia.

The studies originally tested the drug on patients with mild to moderate dementia, where the treatement did not achieve effective results.
But when analysis examined the impact of the drug only on those with mild dementia, researchers found it had an effect both on their daily behaviour and the functioning of their brain and memory.
Now researchers in the US are recruiting to a new study which will examine the impact only on patients with mild dementia.

If the trials prove that the drugs work, it would be “logical” to prescribe them to patients preventively, Dr Karran said, given that changes in the brain associated with dementia occur as far as a decade before symptoms are shown.
Dr Karran said the promise from the drug, and from two other treatments now undergoing trials, left him optimistic that a breakthrough is on the horizon, despite years of disappointment in the field of dementia research.

He said: “I am full of hope that we are going to have a breakthrough in five years.”
If trials on sufferers with mild dementia succeed, “there is a logic” to use the drug therapies at least a decade earlier, to prevent the onset of dementia, he said, in the same way that statins have been widely prescribed for those at risk of heart attacks and strokes.

“That’s exactly the path that blood pressure-lowering agents have taken – people taking them before they have a stroke,” he said. “It’s the path that’s been taken with statins which first showed efficacy against the disease and then you go earlier. That has to be the pathway we take. There is very very good human genetic data which shows that if you can effect this amyloid early on – and only modestly – you have the potential to dealy the onset of that disease very significantly indeed.”

Currently, the only drugs used for dementia can mask symptoms, but do not delay the onset of disease.
Brain scans have found that changes in the brains of patients with diseases such as Alzheimer’s can occur a decade before you have symptoms.

Providing people with anti-body drugs five or 10 years before the condition would otherwise develop could have a “drastic impact” on prevalence of disease, he said.
Dr Doug Brown, director of research and development for the Alzheimer’s Society, said: “If we can delay the onset by five years we could probably cut the numbers with dementia in yhalf – and recent research evidence suggests this could be a possibility.”

Prof Nick Fox, from the Institute of Neurology, at University College London, said that preventing disease before symptoms were present offered the best “window of opportuntity” to halt the impact of disease.

He said: “Let’s just hope that we can slow the devastation at the stage when there is much to save … rather then when we are bed bound or mute – because that is the end result of these dreadful diseases.”
Next week science and health ministers from G8 countries will meet in London for the first ever G8 dementia summit.

Charities called on them to draw up a shared global plan to tackle dementia, and invest heavily in research, which currently receives a fraction of the funds devoted to cancer in this country.
David Cameron has said he will use the UK’s presidency of the G8 to lead coordinated international action.

Source: Telegraph

“Lifestyle changes makes city dwellers aloof”

With the city dwellers spending a greater time outside the home, either at work, or in traffic or in social networking sites, there is lesser interaction happening with one’s own relatives, said Dr Mahesh R Gowda, consultant physiatrist, Spandana health care.

He was speaking on the sidelines of the national seminar held on Thursday at Jyotinivas autonomous college on “Relationship management- An essential investment fro better living.”

Dr Vijay Nagaswamy, psychiatrist from Chennai who took part in the seminar observed the growth of phenomenal growth of the nation in the last thirty years, “We have seen changes in all spheres; an arranged marriage to the new trend of ‘hook up’ relationships. Increased mobility among the youth has given them greater opportunity to live away from home. There is greater focus on the individual than collective. There is a decrease in frustration tolerance among youth,” said Dr Vijay Nagaswamy.

“Improve interactive skills”

Speaking at the seminar Sr Elizabeth C S, Principal of Jyoti Nivas college said that what is needed for a job seeker is good communication, relationship management skills. “Thirty years ago, a person with excellent technical knowledge would have been hired by companies. But now what is being sought after is the communicative skills of a person and his/her ability to perform as a team player and maintain good relation with people around,” she said.

Source: Times of India

Medical Tourism Market is Expected to Reach USD 32.5 Billion Globally in 2019:

Transparency Market Research is Published new Market Report “Medical Tourism Market (India, Thailand, Singapore, Malaysia, Mexico, Brazil, Taiwan, Turkey, South Korea, Costa Rica, Poland, Dubai and Philippines) – Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2013 – 2019” The global medical tourism market was valued at USD 10.5 billion in 2012 and is estimated to reach a market worth USD 32.5 billion in 2019 at a CAGR of 17.9% from 2013 to 2019.

Medical tourism is defined as an act of travel of patients from their home country to other destinations for availing medical services. Rise in healthcare costs in developed countries coupled with the availability of high quality medical services at a low cost in developing countries have given a boost to the medical tourism industry. These medical services range from elective procedures such as cosmetic surgeries to complicated surgeries such as cardiac, orthopedics, neurosurgery and others. Significant growth in this industry is due to economic developments in developing countries that in turn has led to the growth in the medical industry and quality of medical services.

Rise in the healthcare expenditure in developed countries coupled with in the growing elderly population has also contributed to the gowth of the medical tourism across the globe. Economic crisis in the U.S. increased the number of uninsured population, consequently further triggering the growth of this market. Recently, there are approximately 50 million uninsured Americans that are willing to travel abroad for affordable and quality medical care. Globalization and improved communication technology act as a catalyst to boost the growth of this industry.

The development of medical tourism industry is based on several factors such as reduced cost of procedures, long waiting time and high demand for cosmetic surgeries. Medical travel is not only witnessed for intricate procedures but is also expanding due to growing demand for cosmetic and dental procedures since these are usually not reimbursed under regular health insurance policies. Patients travelling abroad can save from 30% to 90% on a procedure, including their travel expenditures, as compared to the medical costs in their own countries. Long waiting time is another factor which has substantially boosted the growth of this industry. Patients based in Canada and U.K travel to low cost destinations for their treatments in order to avoid long waiting periods in their own countries and receive timely access to serious ailments.

Medical tourism industry is dominated by the Asian region that has captured the maximum share of the market. This region is highly competitive owing to the presence of technologically advanced medical specialties, less stringent government regulations and attractive locations. Thailand and India are recognized internationally for their high end medical services and receive patients from across the globe. Singapore is renowned for its healthcare infrastructure and receives patients primarily for complex medical procedures. Thailand, India and Singapore accounted for approximately 60% of the total revenue of the Asian region in 2012. The Latin American countries such as Brazil and Mexico attract maximum number of patients from the U.S owing to the geographic proximity and cultural similarities. Similarly, growth in Turkey is witnessed on account of growing demand of cosmetic surgeries.

However, a paradigm shift in the market is seen owing to strong competition among the players of this industry. Malaysia is poised to have a significant growth in this market and is likely to emerge as a fastest growing country in terms of medical tourism with a CAGR of over 25% from 2013 to 2019. This advent in Malaysian medical tourism market is due to cost advantage over Thailand and Singapore. Moreover, rise in popularity of Malaysian region is attributed to many factors such as advanced healthcare infrastructure, highly skilled professionals, visa benefits and others. Additionally, robust government support for promotion of Malaysian medical tourism has propelled the growth in this nation.

Moreover, increase in the government initiatives and growing inclination of private sector hospitals towards medical tourism is further supplanting the growth of this market. Key healthcare providers in this industry include Apollo Hospitals Enterprise Ltd., Bumrumgrad International Hospital, Bangkok Medical Center, Prince Court Medical Center and others.

The Medical Tourism market is segmented as follows:

The global medical tourism market is segmented into the following categories:
Medical Tourism Market, by Geography
India
Overview
Cost Comparison of Procedures
SWOT Analysis
Government Support
India Inbound Medical Tourism (No. of patients)
India Medical Tourism: Top Revenue Contributing Country (%) (2012)
Thailand
Singapore
Malaysia
Mexico
Brazil
Turkey
South Korea
Taiwan
Prospective Countries
Costa Rica
Poland
Dubai
Philippines

Source: Information Week

New candy eats ‘bad’ bacteria in the mouth, benefitting teeth

Our mouths are a delicate balance of good and bad bacteria. When we clean our teeth, the aim is to knock out cavity-causing bacteria, while allowing beneficial oral bacteria to thrive. Now, researchers have developed a sugar-free candy, which contains dead bacteria that bind to bad bacteria, potentially reducing cavities.

The importance of good oral health has been emphasized by doctors for years. Poor oral health has been linked to many conditions, from Alzheimer’s disease to pancreatic cancer, not to mention cardiovascular disease.

To promote better oral health, a team from the Berlin-based firm Organobalance GmbH, Germany, created a new candy, which they claim reduced levels of ‘bad’ bacteria in study subjects’ mouths.

Their research was published in Probiotics and Antimicrobial Proteins.

They note that after we eat, bacteria on the surface of the teeth release acid, which can dissolve the tooth enamel, leading to cavities.

The most common strain of this “bad” bacteria is called Mutans streptococci. However, the researchers say that in previous studies with rats, another bacteria called Lactobacillus paracasei has been shown to reduce levels of the cavity-causing bacteria, decreasing the number of cavities in the rodents.

The team, led by Christine Lang, believe that by binding with M. streptococci, the L. paracasei bacteria prevent this bad bacteria from reattaching to the teeth, causing it to get washed away by saliva.

Candy ‘significantly lowered’ bad oral bacteria levels
In a pilot trial involving 60 subjects, Lang and her team tested whether their sugar-free candy, which contained heat-killed samples of L. paracasei DSMZ16671, reduced levels of bad oral bacteria.

One-third of the subjects ate candies with 1 mg of L. paracasei, while another third ate candies with twice this amount (2 mg). The final third served as a control group and ate candies that were similar in taste but that contained no bacteria.

In total, all subjects ate five candies during the 1.5-day study. They were not allowed to perform any oral hygiene activities during this time, and they were also not allowed to consume coffee, tea, wine or probiotic foods.

Results showed that nearly 75% of the participants who ate candies with the good bacteria had “significantly lower” levels of Mutans streptococci in their saliva than before, compared with the control group.

Additionally, the subjects who ate candy with 2 mg of L. paracasei had a reduction in bad bacteria levels after eating only one piece of candy.

The researchers write:

“We think it remarkable that this effect was observed after exposure to only five pieces of candy containing 1 or 2 mg of dead L. paracasei DSMZ16671 consumed in 1.5 days.”

They say that by using dead bacteria, they avoided problems that live bacteria might have caused. They also note that the L. paracasei does not bind with beneficial oral bacteria, which is why this is a better cavity prevention method than other probiotics.

“Additionally,” they add, “sugar-free candies stimulate saliva flow, a benefit to oral health.”

Source: Medical News Today

Cause of infant deaths from SIDS identified

Researchers have claimed that babies dying from Sudden infant death syndrome (SIDS) have brain stem abnormalities regardless of whether they were exposed to risks like suffocation or co-sleeping.

The researchers analysed the brain stems of 71 infants who had died suddenly and unexpectedly over 11 years.
The study found that all the babies who died had abnormalities of four neurochemicals in the brain stem, located at the skull’s base and connects the brain to the spinal cord.

According to Boston Children’s Hospital and Florey Institute of Neuroscience and Mental Health’s Dr Jhodie Duncan, the research suggests that the abnormality leaves the toddlers unable to adequately respond when faced with a stressor while sleeping.
He said that if a pillow goes over a healthy infant’s face, their brain usually detects changes in oxygen levels and initiates response, so that the baby can turn its head and continue breathing. However, babies with the abnormality did not “respond properly” in the same situation, which lead to their death, News.com.au reported.

The next possible step of the research team would be to see if a blood test can be developed to be used as an early screening tool to identify infants at risk of sudden and unexpected death in their first year.
The research has been published in the journal Pediatrics.

Source: Yahoo news

Grape seed Extract Kills 76% of Leukemia Cancer Cells in 24 Hours

A new study by Indian origin researcher has revealed that the synthesis of the most active component of grape seed extract, B2G2, encourages the cell death known as apoptosis in prostate cancer cells while leaving healthy cells unharmed.

“We’ve shown similar anti-cancer activity in the past with grape seed extract (GSE), but now we know B2G2 is its most biologically active ingredient which can be synthesized in quantities that will allow us to study the detailed death mechanism in cancer cells,” Alpna Tyagi, PhD, of the University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, said.

Previous studies have shown the GSE effectiveness against cancer cells and have also shown its mechanism of action. However, Tyagi said that until recently, they didn’t know which constituent of GSE created this effect. This naturally occurring compound, GSE, is a complex mixture of polyphenols and also so far it has been unclear about the biologically active constituents of GSE against cancer cells.

Eventually the group pinpointed B2G2 as the most active compound, but, “it’s expensive and it takes a long time to isolate B2G2 from grape seed extract,” Tyagi says.

The current study reported the success of this effort, including the ability to synthesize gram-quantity of B2G2 reasonably quickly and inexpensively.

The study also showed anti-cancer activity of synthesized B2G2 similar in mechanism and degree to overall GSE effectiveness.

The study was published in the journal Nutrition and Cancer.

Source: Zee news

 

Tummy `clock` tells us how much to eat

Scientists have found the first evidence that the nerves in the stomach act as a circadian clock, limiting food intake to specific times of the day. The discovery, by University of Adelaide researchers , could lead to new information about how the gut signals to our brains about when we’re full, and when to keep eating.

In the University’s Nerve-Gut Research Laboratory, Dr Stephen Kentish investigated how the nerves in the stomach respond to stretch, which occurs as a consequence of food intake, at three-hourly intervals across one day. “These nerves are responsible for letting the brain know how much food we have eaten and when to stop eating,” said Kentish, who is the lead author of the paper.

“What we’ve found is that the nerves in the gut are at their least sensitive at time periods associated with being awake. This means more food can be consumed before we feel full at times of high activity, when more energy is required,” Kentish added.

“However, with a change in the day-night cycle to a period associated with sleeping , the nerves in the stomach become more sensitive to stretch, signalling fullness to the brain quicker and thus limiting food intake.

“This variation repeats every 24 hours in a circadian manner, with the nerves acting as a clock to coordinate food intake with energy requirements ,” he said. So far this discovery has been made in lab studies, not in humans. “Our theory is that the same variations in nerve responses exist in human stomachs , with the gut nerves being less sensitive to fullness during the day and more sensitive at night,” he said.

Source: Deccan Chronicle