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Oct 22
High-carb diets may increase Alzheimer's risk
Older people, who eat a carbohydrate rich diet are four times more likely to develop mild cognitive impairment, which is a precursor to Alzheimer's disease, a new research has claimed.

The research from the Mayo Clinic in America has found that the risk is also higher with a diet high in sugar, while on the other hand, proteins and fats appeared to offer some protection as people who consumed plenty of them were less likely to suffer cognitive decline, the Daily Mail reported.

Not everyone suffering from mild cognitive impairment (MCI) develops Alzheimer's disease, but many do, lead author Rosebud Roberts, a professor in the department of epidemiology at the Mayo Clinic, said.

The research tracked 1,230 people of ages between 70- 89 and asked them to provide data on what they ate last year.

Among that group, only 940 people who showed no traces of cognitive impairment were asked to return for follow-ups every 15 months.

By the study's fourth year, 200 of the 940 began to show mild cognitive impairment - trouble with memory, language, thinking and judgment.

"If we can stop people from developing MCI, we hope we can stop people from developing dementia. Once you hit the dementia stage, it's irreversible," Professor Roberts told USA Today.

"A high-carbohydrate intake could be bad for you because carbohydrates impact your glucose and insulin metabolism.

"Sugar fuels the brain, so moderate intake is good. However, high levels of sugar may actually prevent the brain from using the sugar - similar to what we see with type 2 diabetes," she added.

Oct 22
Hip disorder cured using stem cells
A multi-specialty hospital here has successfully used stem cells to cure a hip joint disorder, relieving affected patients from expensive surgery and conservative treatment.

"We have so far treated seven patients, including two non-resident Indians (NRIs) suffering from hip joint disorder using their stem cells and helped them to resume normal life within months," Live 100 Hospital chairman HN Nagaraj said.

Known medically as avascular necrosis, the uncommon disease leads to temporary or permanent loss of blood supply to hip joint bone and causes disorder. If not treated early, the dislocation of the hip bone with joint surface can result in disability. Any serious injury, medications such as steroids, blood coagulation or excessive alcohol can cause blood loss.

"Stem cell therapy has been used for the first time in the world to treat the hip bone disorder by rejuvenating its tissues with the bone marrow of the patient. Stem cells in the marrow of the affected bone are separated from red blood cells and blood plasma through a clinical process and injected into the hip joint of the patient," Nagaraj said, demonstrating a case study.The private hospital on the city`s outskirts has tied up with a Pune-based laboratory to harvest the stem cells and transplant them through four injections over four weeks to restore the hip joint function lost due to damage to its cartilage. The stem cells also repair bone cells as they can differentiate between bone and cartilage cells.

"The novel treatment has no bleeding or scar formation as the process does not involve surgery. The patient has to visit our hospital for a day in a week for each of the four injections," Nagaraj said.

Though the treatment costs a patient Rs.350,000 currently, the hospital hopes to bring it down over time when awareness of the stem cell therapy spreads and more patients opt for the treatment.

The hospital will soon submit the therapy treatment protocol for publication in the Journal of Mass & Heat Transfer in the United States and Britain and file for international patent and intellectual property rights.

Among the patients cured at the hospital are two NRIs from the United States - Jayadeep Panduranga, 37, and Aishwariya, 18, who could not get relief from shooting pain due to hip disorder despite years of conventional treatment like core decompression.

"Though I underwent core decompression for nine years in California, there was no relief. Stem cell therapy has reduced pain and hip movements are almost normal," Panduranga said.

Similarly, Aishwariya, an under-graduate in Detroit, suffered pain in the right hip and faced difficulty in moving around.

"I`m able to walk again with a walker," Aishwariya said.

Oct 20
Low calcium hormone disease risk
Having too little calcium in the diet increases women's risk of a hormone condition that can cause bone fractures and kidney stones, scientists suggest.

Primary hyperparathyroidism (PHPT) affects around one in 800 people during their lifetime and is most common in post-menopausal women.

Writing in the British Medical Journal, the team suggest increasing calcium intake cuts the risk of the disease.

Adults need around 700mg of calcium a day.

Milk and other dairy foods, nuts and fish such as sardines and pilchards (where the bones are eaten) are some dietary sources of calcium.

Taking too much could cause stomach pains and diarrhoea.

PHPT is caused by overactive parathyroid glands secreting too much parathyroid hormone.

As well as bone and kidney problems, there have also been suggestions it is linked to an increased risk of high blood pressure, heart attack and stroke.
Benefits v risks

The US team from Brigham and Women's Hospital looked at 58,300 women who were taking part in a much broader ongoing piece of research called the Nurses' Health Study.

All were aged between 39 and 66 in 1986, when the study began, and had no history of PHPT.

The women have completed food questionnaires to record how frequently they ate particular foods or supplements - including calcium - every four years, with the latest being completed in 2008.

Over that 22 year period, 277 cases of PHPT were confirmed.

The researchers divided all the women into five groups , depending on the calcium intake.

They accounted for factors such as age, body mass and ethnicity.

It was found those with the highest intake of dietary calcium had a 44% reduced risk of developing PHPT compared with the group with the lowest.

Writing in the journal, the team led by Dr Julie Paik, said: "Increased calcium intake, including both dietary and supplemental calcium, is independently associated with a reduced risk of developing primary hyperparathyroidism in women."

Oct 20
Painkiller abuse next big epidemic in US: Study
Adolescents' abuse of prescription painkillers (analgesics) like vicodin, valium and oxycontin at a rate 40% higher than previous generations, is turning into an epidemic in the US, says a study.

"Prescription drug use is the next big epidemic," said Richard Miech, professor of sociology at the University of Colorado Denver, who led the study.

"Everyone in this field has recognised that there is a big increase in the abuse of non-medical analgesics but our study shows that it is accelerating among today's generation of adolescents," said Miech, the Journal of Adolescent Health reports.

That makes it the second most common form of illegal drug use in the US after marijuana, according to Miech.

The study drew on data from the National Survey on Drug Use and Health, a series of annual, nationally representative, cross-sectional surveys of US drug use. The analysis used data from 1985 through 2009, according to a Colorado statement.

Miech said that the prevalence of prescription pain medication abuse among the current generation of youth was "higher than any generation ever measured".

"The increasing availability of analgesics in the general population is well documented, as the total number of hydrocodone and oxycodone products prescribed legally in the US increased more than fourfold from about 40 million in 1991 to nearly 180 million in 2007," the study said.

"Youth who observe their parents taking analgesics as prescribed may come to the conclusion that any use of these drugs is OK and safe," Meich said. Yet, the consequences are often severe.

Miech said there were now more deaths due to accidental overdoses of these drugs than deaths due to overdoses of cocaine and heroin combined. Most people who abuse prescription pain relievers report that they obtained them from family or friends.

"While most people recognise the dangers of leaving a loaded gun lying around the house," said Miech, "what few people realise is that far more people die as a result of unsecured prescription medications."

Oct 19
Fat teenage boys 'could be impotent and infertile later in life'
Obese teenage boys have up to 50 per cent less testosterone than their leaner pals - increasing their risk of infertility in later life, a study has found.

Researchers said the results were a 'grim message' for overweight young adults.

The study by scientists at the University at Buffalo in the U.S shows for the first time that obese young men aged 14 to 20 have around half the total testosterone than normal weight youths.

The same research team first reported in 2004 the presence of low testosterone levels - known as hypogonadism - in obese, type 2 diabetic adult males and confirmed it in 2010 in more than 2,000 obese men, both diabetic and non-diabetic.

The study's first author Dr Paresh Dandona, Distinguished Professor in the Department of Medicine, said: 'We were surprised to observe a 50 per cent reduction in testosterone in this paediatric study because these obese males were young and were not diabetic.

'The implications of our findings are, frankly, horrendous because these boys are potentially impotent and infertile. The message is a grim one with massive epidemiological implications.'

In 2009, 20 per cent of 11 to 15-year-olds boys in the UK were recorded as obese.

The study included 25 obese and 25 lean youths and was controlled for age and level of sexual maturity. Concentrations of total and free testosterone and estradiol, an oestrogen hormone, were measured in morning fasting blood samples.

Dr Dandona said the results need to be confirmed with a larger number of subjects.

However, he said: 'These findings demonstrate that the effect of obesity is powerful, even in the young, and that lifestyle and nutritional intake starting in childhood have major repercussions throughout all stages of life.'

Dr Dandona said in addition to the reproductive consequences, the absence or low levels of testosterone that were found also will increase the tendency toward abdominal fat and reduced muscle, leading to insulin resistance which contributes to diabetes.

He added: 'The good news is that we know that testosterone levels do return to normal in obese adult males who undergo gastric bypass surgery.

'It's possible that levels also will return to normal through weight loss as a result of lifestyle change, although this needs to be confirmed by larger studies.'

The researchers now intend to study whether or not weight loss accomplished either through lifestyle changes or through pharmacological intervention will restore testosterone levels in obese teenage boys.

The paper was published online in the journal Clinical Endocrinology.

Oct 19
Skipping breakfast could make you fatter
Those who skip breakfast to lose weight not only eat more for lunch, they also crave fatty and sugary foods, researchers say.

Over time, this could lead to slimmers piling on the pounds, despite their best intentions, the Daily Mail reported Tuesday.

The warning comes from doctors and scientists at Imperial College London who scanned the brains of 21 healthy young men and women while they looked at pictures of various foods.

The volunteers also rated how appealing they found the foods, which ranged from salads and vegetables to calorie-laden chocolates, desserts, cakes, pizzas and burgers.

Oct 18
Missing just two hours of sleep can erase memories: Study
Researchers have discovered that memories can be lost for ever if you dont get enough sleep, and missing even two hours of slumber can stop the brain from storing them.

Researchers from the University of Pennsylvania looked at how mice that were stopped from sleeping fared on a memory task.


The creatures were kept awake for varying amounts of time, to pinpoint just how little sleep had to be lost for their recall to be damaged, the Daily Mail reported.

"What we found is that when we deprived animals of sleep, that impaired storage of memories," researcher Ted Abel said.

"And most importantly we found out that a very short period of time would block memory consolidation, it was as short as three hours, which for mice is something like 20 per cent of their sleep over 24 hours," Abel said.

"In human terms, it would be the equivalent of dropping an eight-hour night of sleep to six hours, which is something we do all the time," Abel added.

It is thought that the replay of our memories while we are asleep is essential for their proper storage in the brain.

The study also suggested that there is a critical period after learning during in which memories are consolidated; meaning that loss of sleep at some points in time may be more damaging than at others.

Researchers added that any information lost due to lack of sleep is gone forever - meaning that sleeping longer the next night won`t bring it back.

"The important thing about sleep is that is allows the brain to do things that it is far too busy to do during the day. Sleep is the quiet time that gives the brain time to do the filing," Neil Stanley, one of Britain`s leading sleep experts, said.

The study was presented at the Society for Neuroscience`s annual conference in New Orleans.

Oct 18
Ganga water can cause cancer: Study
The river Ganga, lifeline to millions of Indians and the most holy river to Hindus, has become a source of carcinogens as well.

With pollutants being continuously dumped into the river, a study has found that people living along its course are more susceptible to cancer than anywhere else in the country.

According to the National Cancer Registry Programme (NCRP), the river is suffused with heavy metals and poisonous chemicals, especially along the stretches in Uttar Pradesh, Bihar and West Bengal.

"Ganga water is now laced with toxic industrial discharge such as arsenic, choride, fluoride and other heavy metals," Jaideep Biswas, director of Chittaranjan National Cancer Institute, an associate of the National Cancer Registry Programme, was quoted saying to a leading newspaper.

Gallbladder cancer cases in these areas are the second highest in the world and prostate cancer highest in the country.

The research revealed that of every 10,000 people surveyed, 450 men and 1,000 women were gallbladder cancer patients. Other forms of cancer were also found among the people living along the river course, such as kidney, oesophagus, liver, urinary bladder and skin cancer.

"Those who've been bathing in this poison river are equally at danger," said Biswas.

Oct 17
Depression: a dark and dreary place
What one person may experience in their lives as a challenge the other might consider a walk in the park compared to what they are going through and wonder what the 'suffering' person is complaining about. Often you will hear people exclaim, " I am so depressed!" Some people say this really believing that having a bad day or an uncomfortable situation that negatively affects his or her emotions means that s/he is depressed. Sadly, depression is about more than just having a bad day or feeling weepy for a few hours. Depression can last for weeks, months and even years if the suffering person doesn't get help from the right people. The most encouraging news or information is that depression is treatable and there is light at the end of the dark tunnel.

This week, the world commemorated the 20th anniversary of World Mental Health Day. It was held under the theme, 'Depression: A Global Crisis.' According to the World Health Organisation (WHO), "Depression affects more than 350 million people of all ages, in all communities, and is a significant contributor to the global burden of disease. Although there are known effective treatments for depression, access to treatment is a problem in most countries and in some countries fewer than 10% of those who need it receive such treatment."

Depression is defined by WHO as, "a common mental disorder, characterized by sadness, loss of interest or pleasure, feelings of guilt or low self-worth, disturbed sleep or appetite, feelings of tiredness, and poor concentration. Depression can be long-lasting or recurrent, substantially impairing an individual's ability to function at work or school or cope with daily life."

Not many people are willing to share their stories of being depressed because not many people like to listen to people complain about their sorrows for fear of them dampening their own mood or simply because not everyone is able to offer the right support for people who are depressed. A good friend will say things like, "Go tla siama," or, " if God brought you to it, He will bring you through it" or will offer other encouraging words and motivational quotes hoping it will snap the depressed friend out of a bad emotional space.

Sometimes this can work or motivate someone to actually focus on the positive side, but a depressed person is in need of more than just motivational words. The kind of help available for the treatment of depression includes therapy and medication. Some people get away with simply taking medication that is prescribed by a professional that will help to alter the chemical imbalance that causes their depression while others benefit from a combination of medical treatment and therapy.

The National Institute of Mental Health on http://www.nmih.nih.gov says, "the first step to getting appropriate treatment is to visit a doctor. If a medical condition and bipolar disorder can be ruled out, the physician should conduct a psychological evaluation or refer the person to a mental health professional. The doctor or mental health professional will conduct a complete diagnostic evaluation. He or she should get a complete history of symptoms, including when they started, how long they have lasted, their severity, whether they have occurred before, and if so, how they were treated. He or she should also ask if there is a family history of depression. In addition, he or she should ask if the person is using alcohol or drugs, and whether the person is thinking about death or suicide."

There is a lot of stigma against people who suffer from mental illnesses because not everyone is informed enough to appreciate or understand what mental illness. So, people will hide in the dark and dreary place that is their own world and not reach out for help. But left untreated, people who suffer from depression live lackluster lives, to say the very least, and some of those who can't bear the thought of living end up taking their own lives.

Some people turn to alcohol and drugs in an effort to numb the pain that they feel. Although these self-medication methods may work for a short period, they end up worsening a person's depressive state because of the havoc they can cause on the chemical balances of the human brain.Rather than self-medicating or denying the fact that you are suffering from depression, know that there is no shame in reaching out for help when it is needed.

Oct 17
Recycled heart devices offer new life in poor nation, study finds
For at least eight years, a Philadelphia heart specialist and his colleagues have been smuggling used cardiac devices in suitcases to India to help poor people who might die without them.

Now, Dr. Behzad B. Pavri, a cardiac electrophysiologist at Thomas Jefferson University Hospital, reports that recycled implantable cardioverter-defibrillators or ICDs -- devices that jolt a failing heart back into rhythm -- can be collected safely from U.S. patients and funeral homes, transported, sterilized and re-implanted in people who otherwise would not be able to afford them.

"The patients who are getting these devices are the sickest of the sick, the poorest of the poor," Pavri said.

In a review of 81 patients who received recycled ICDs between 2004 and 2011, Pavri and his colleagues found no evidence of infection or malfunction of the ICDs. Nine of the patients died during follow-up, but the deaths didn't appear related to the ICDs, the authors said.

Though there's been growing evidence that heart pacemakers may be safely reused, this is one of the first published reports to suggest that the more sophisticated ICD device may also be recycled, Pavri said.

"The outcomes were what we expected and hoped for," Pavri said of the study published in the latest issue of the Annals of Internal Medicine.

But the study also renews ongoing questions about the legality -- and ethics -- of reusing cardiac devices, a practice that is prohibited by federal regulators and device manufacturers in the U.S.

In an accompanying editorial, Harvard Medical School experts Dr. Paul Farmer and Dr. Gene Bukhman caution that such well-meaning efforts should be careful not to offer inferior treatment to the poor.

"Flagship projects must remain free of the taint of the secondhand, in part by making it clear when devices can safely be reused," wrote those authors. Farmer is a renowned expert in global health disparities and one of the co-founders of Partners in Health, the international health and social justice organization.

The patients in Pavri's study, conducted in cooperation with Holy Family Hospital in Mumbai, included 66 men and 15 women. They ranged in age from 27 to 79 and were all at highest risk for life-threatening irregular heart rhythms that could be treated with ICDs.

All told, the patients received 106 reused devices, including 22 who got a second device and three who received a third ICD during the course of the trial.

More than 40 percent of the patients got life-saving shocks from the ICDs, including one 27-year-old patient, Mohd Asif, who received more than 300 pacing charges or larger jolts during so-called ventricular tachycardia or ventricular fibrillation "storms," in which the heart runs wildly out of rhythm.

He is "still very much alive," said Dr. Yash Lokhandwala, a cardiologist at the Mumbai hospital who treated Asif and others.

The patients who got the ICDs were those who otherwise could not pay for them. In India, a new ICD might cost 3 lakhs, the equivalent of $6,000 U.S., far beyond the reach of ordinary Mumbai residents who earn about 1.41 lakhs a year. Those who can pay foot the bill themselves, but those who can't are treated with other, often inferior methods, including drug therapies.

Cost is the chief barrier preventing use of cardiac devices such as ICDs and pacemakers in developing nations, Pavri said. Rates of new ICD implantation are about 1 per million in many Asian and South American nations, compared with 434 per million new ICD implantations per year in the U.S., according to the World Society of Arrhythmia.

At the same time, ICDs are removed every day from patients in the U.S. who get new devices or who die each year, Pavri said. Modern ICDs have a projected battery life of six to 10 years, and many used ICDs have three years or more of remaining charge when they're explanted.

Funeral directors frequently remove ICDs from bodies to prevent explosions during cremation. Perhaps one-fifth to one-third of devices discarded by funeral homes may have sufficient battery life to save someone else.

"We don't know exactly how many but it's clearly in the thousands," said Pavri.

For his study, Pavri and his colleagues collected the devices one by one over several years from consenting patients or from funeral homes. Shipping them by traditional methods was difficult because of the explanation involved, so the doctors packed them into checked luggage and transported them themselves.

Reusing ICDs is prohibited in the U.S. by the federal Food and Drug Administration, which classifies them as single-use devices. However, the FDA has no jurisdiction over the devices if they're treated and implanted elsewhere and Lokhandwala said the Cardiological Society of India has authorized the practice.

The ICDs were collected, cleaned and sterilized during a multi-step process and then re-implanted into the new patients.

Researchers were able to follow up on 75 of the 81 patients; those who survived appeared to be doing well, Pavri said.

This study offers important new information about the apparent safety of reusing ICDs, but it also highlights obstacles, said Dr. Thomas Crawford, a cardiologist at the University of Michigan Health System in Ann Arbor who was not involved in the research.

Crawford is part of Project My Heart-Your Heart, a program that is collecting used pacemakers for future donation in developing countries. So far, they've amassed some 10,000 devices. However, researchers involved with that program have petitioned the FDA for permission to conduct a clinical trial to confirm the safety and efficacy of the reused devices in living people.

As it stands now, projects like Pavri's aren't officially sanctioned.

"It's a very uncharted territory," Crawford said. "It's not exactly legal."

Pavri acknowledged as much in the study, saying "any complications associated with such off-label use could be grounds for legal action."

But, he added, such off-label research is necessary to bolster arguments that regulators and manufacturers should allow reuse of these devices on humanitarian grounds.

"It is worse practice, in my opinion, to not offer a patient anything," Pavri said.

"A secondhand device is better than no device at all."

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