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Jan 23
US Approves First Trial Of Embryonic Stem Cells
The US regulators have given the go ahead for a biotech company to carry out the world's first trial of a treatment using embryonic stem cells, in this case to treat victims of spinal cord injury that leaves them unable to walk.

Although heralded as an early sign of new US president Obama's support for embryonic stem cell research, Dr Thomas Okarma, president and CEO of Geron Corp. of Menlo Park, California, the company that will be carrying out the trial, told Associated Press that strictly speaking it was not so in this case, since the next phase of the project would have been eligible for federal funds under Bush. It was the earlier development phases that had to be done with private funds because of funding restrictions on embryonic stem cell research brought in by Bush in 2001, said a report in Times Online.

Today's ruling by the US Food and Drug Administration (FDA) allows Geron to give 8 to 10 patients with spinal cord injury a single injection of cells made from embryonic stem cells. The testing will be done at several medical centres throughout the US and the patients will receive their injections within 2 weeks of their injury; unfortunately patients whose injuries are older than this are unlikely to benefit from such therapy.

According to a Geron statement, the Phase I trial is designed to establish the safety of the treatment, called GRNOPC1, in patients with "complete" American Spinal Injury Association (ASIA) grade A subacute thoracic spinal cord injuries.

Okarma told AP that they will also be looking for the possible return of feeling or movement in the legs. Animal studies have shown that injected embryonic stem cells can turn into specialist cells that replace damaged sheaths around nerves that have suffered "demyelination" and thereby restore their ability to send signals that control muscle and sense feelings.

Embryonic stem cells are like master cells, they can become virtually any cell of the body, which comprises about 200 types of tissue. There are other kinds of stem cells too, like adult stem cells, but they are more limited in what types of cell they can become and harder to "coax", so embryonic stem cells are considered the "gold standard" in stem cell research. They are however more controversial because harvesting them involves destroying embryos, whereas adult stem cells can be recovered without harming the donor.

If successful, the trial will lead to therapies with the potential to transform the lives of thousands of people who every year become paralysed from the chest down, and for whom few treatments exist. Experts predict that if successful, the therapy could be in general use within three to five years.

Okarma said in a press statement that:

"This marks the beginning of what is potentially a new chapter in medical therapeutics -- one that reaches beyond pills to a new level of healing: the restoration of organ and tissue function by the injection of healthy replacement cells."

He said that: "the ultimate goal is to achieve restoration of spinal cord function".

Although the FDA decision is independent of the White House, it is being received as a symbol of a new attitude to embryonic stem cell research and Obama is expected to start lifting funding restrictions next week, said a Times Online report.

Dr Richard Fessler, professor of neurological surgery at the Feinberg School of Medicine at Northwestern University, said that:

"The neurosurgical community is very excited by this new approach to treating devastating spinal cord injury."

"Demyelination is central to the pathology of the injury, and its reversal by means of injecting oligodendrocyte progenitor cells would be revolutionary for the field. If safe and effective, the therapy would provide a viable treatment option for thousands of patients who suffer severe spinal cord injuries each year," he added.

Polling figures suggest most Americans are in favour of stem cell research, but it was strong opposition lobbying that persuaded Bush to impose restrictions on federal funding.

Okarma said that the delay caused by the funding restriction meant there "are people out there who might have benefited, but who now cannot," he told the press.

Jan 23
Light Alcohol May Reduce Disability In Healthy Seniors
A new US study found that light to moderate alcohol consumption may reduce the risk of physical disabilities that cause so may seniors to lose their independence, but this was only the case for healthy older adults, the researchers found no benefit for those in poor health.

The study was the work of lead author, Dr Arun S. Karlamangla, an associate professor of medicine at the David Geffen School of Medicine, University of California, Los Angeles, and colleagues, and is published in the 1 January 2009 print issue of the American Journal of Epidemiology.

Some studies have already shown that light to moderate alcohol consumption is linked to lower risk of heart disease, diabetes and death. Karlamangla and colleagues wanted to investigate if this might be the same for physical disability, such as that which impedes the older person from doing essential everyday things like getting dressed, preparing and eating meals, going shopping, walking, and so on.

For the study they looked at the National Health and Nutrition Examination Survey (NHANES) Epidemiologic Follow-up Study surveys from 1982 to 1992 and used data for two 5-year periods relating to 4,276 non-institutionalized US adults who were aged 50 or more.

They found that compared to heavy drinking, or not drinking at all, light to moderate drinking (ie fewer than 15 drinks a week with no more than 5 in a day for men and 4 for women) was linked with a nearly 25 per cent reduced risk of incident disability or death over 5 years.

When they investigated further, by looking at self-reported health status, they found that disability risk went down the more the participants drank, up to the light to moderate limit, but this was only the case for those who reported being in good or better health, it was not the case for those who reported being in fair or worse health.

Karlamangla and colleagues concluded that:

"Alcohol consumption in moderation might reduce the risk of developing physical disability in older adults in good health but not in those in poor health."

Karlamanga told HealthDay of ScoutNews, LLC, that what this finding says to those seniors who only drink a light to moderate amount of alcohol is:

"Don't worry, you're probably in good company, and you're probably going to get good benefits from this."

But he added that "if your health is not good, you probably should not be drinking".

Speculating on the reasons why the not so healthy participants showed no benefit, co-author Dr Alison A Moore, from the David Geffen School of Medicine, where she is a professor specializing in geriatric medicine, said it could be that alcohol has a bad effect on medications, or that their poor health was irreversible.

She said the usual recommendation for the older adult was one drink a day, but these findings show there are healthy seniors who can drink more than this.

"Light to Moderate Alcohol Consumption and Disability: Variable Benefits by Health Status."

Jan 21
Court to hear Anil Nanda's plea on Escorts' status
The Delhi High Court Friday agreed to hear the plea of industrialist Anil Nanda against turning the Delhi-based Escorts Heart Institute and amp; Research Centre Limited (EHIRCL) into a limited company from a charitable institution.

A single bench of the court had in July last year allowed the plea of Rajan Nanda, Anil's elder brother and the former chairman of Escorts Hospital, to convert the hospital into a company, which was challenged by his brother.

Anil Nanda has sought restoration of the institute to its original status of a charitable trust, but his plea could not be entertained as he had not sought permission of the court before filing the suit as provided in the Civil Procedure Code.

A division bench comprising Justice Mukul Mudgal and Manmohan allowed the plea of Anil Nanda and asked the single bench to hear the matter.

Anil Nanda in his petition had submitted that EHIRCL was a charitable trust established by his father H.P. Nanda in 1981 and the DDA had provided it two acres of land at Rs.10,000 per acre.

He alleged that after the death of his father in 1999, Rajan Nanda and others of the institute hatched a conspiracy to grab its huge reserves and substantial assets by setting up another society with an identical name in Chandigarh.

Jan 21
India will account for 60 percent of world's heart diseases by 2010
Muscle protein mutation in heart disease, carried by one in a 100 people, is the world's leading killer. By 2010 India alone will account for 60 percent of the world's share of such cases.

A team of 25 scientists from four countries explained that one percent of the world's population carries this mutation almost guaranteed to cause heart problems. And most of them come from India.

The mutation, a deletion of 25 letters of genetic code from the heart protein gene MYBPC3, is virtually restricted to people from the Indian subcontinent, afflicting people across all caste, faiths or religious calling.

Heart disease has many causes, some carried in our genes and others linked to our lifestyle, but all seemingly complex, hard to pin down and incompletely understood.

The mutation was discovered five years ago in two Indian families with cardiomyopathy, but its significance only became apparent after almost 1,500 people from many parts of India, some with heart disease and some without, were studied.

Scientists express this genetic risk as an odds ratio, where 1.2 would be a small effect and 2.0 a large one.

For the MYBPC3 mutation, the odds ratio is almost off-scale, a staggering 7.0. Carriers usually show few symptoms until middle age, but after that age most are symptomatic and suffer from a range of effects, at worst sudden cardiac death.

'The mutation leads to the formation of an abnormal protein,' explained the study leader, Kumarasamy Thangaraj from the Centre for Cellular and Molecular Biology, Hyderabad.

'Young people can degrade the abnormal protein and remain healthy, but as they get older it builds up and eventually results in the symptoms we see.'

The combination of such a large risk with such a high frequency is, fortunately, unique. 'How can such a harmful mutation be so common?' asks Chris Tyler-Smith from The Wellcome Trust Sanger Institute, Hinxton, in Britain. 'We might expect such a deleterious change to have 'died out'.

'We think that the mutation arose around 30,000 years ago in India, and has been able to spread because its effects usually develop only after people have had their children. A case of chance genetic drift: simply terribly bad luck for the carriers,' he added.

'The bad news is that many of these mutation carriers have no warning that they are in danger,' said Perundurai S. Dhandapany from Madurai Kamaraj University, Madurai, Tamil Nadu, 'but the good news is that we now know the impact of this mutation'.

The lifetime risk of developing heart failure is roughly one in five for a person aged 40 years. Now that this mutation has been identified, there is a new glimmer of hope for some of them, said a Wellcome Trust release.

The mutation's effects vary a lot from person to person. Carriers could be identified at a young age by genetic screening and adopt a healthier lifestyle.

And perhaps eventually new drugs could be developed to enhance the degradation of the abnormal protein and postpone the onset of symptoms. There is a market of 60 million people waiting.

These findings were published in Nature Genetics.

Jan 21
Scientists crack defective gene responsible for cardiac arrest
In a major breakthrough of medical science, a team of scientists led by Indians has identified a defective gene responsible for the sudden cardiac arrest and deaths among the population in the Indian sub-continent.

The study piloted by the Hyderabad-based Centre for Cellular and Molecular Biology (CCMB) and involving scientists from India, Pakistan, the US and Britain has given hope to 60 million people carrying the defective gene by way of stem cell therapy or a possible drug.

Announcing the results of the five-year long study, CCMB director Lalji Singh told reporters here Monday that it was the defect in one gene Myosin binding protein-C (MYBPC3), which regulates pumping of blood, accounting for 45 percent sudden cardiac arrests or sudden death due to heart problems.

'We found this particular gene in certain individuals with 25 base pairs missing and it makes defective protein,' he said.

'This, however, does not represent all the problems of heart. Two to five percent of heart problems are due to sudden heart attack and this represents 45 percent of that two to five percent,' said Singh, who was one of the eminent scientists who participated in the study.

The study was conducted by an international team of 25 researchers led by the CCMB scientists. The results of the research were published in the prestigious scientific journal 'Nature Genetics' in the US.

Significantly the researchers found that general defect was found only in the people of Indian sub-continent, including countries like India, Pakistan, Sri Lanka, Indonesia and Malaysia but not in other countries.

'Bangladesh was not covered by the study but since it has the same origin, we believe that the defective gene is also found in that country,' said the CCMB director.

The scientists analysed the DNA of 800 cardiac patients from Hyderabad, Madurai, Thirunalveli, Thiruvananthapuram, Kozhikode, Mumbai, and Bhubaneswar, Delhi and Chandigarh and 699 normal individuals from the ethnically matching groups.

The scientists also screened 6,273 randomly selected individuals to find out how widespread the mutation was in the Indian population. These cases were from 107 ethnic populations including primitive tribes, tribes, castes, subcastes and people belonging to all the religious groups including Hindus, Sikhs, Muslims and Christians from across the country.

'If there is only one defective gene in an individual, he may live up to the age of 40 to 45 and then suddenly die because of heart attack without showing any symptoms before. We can identify such individuals in familiar cases (where there are families where people die because of sudden heart attacks).'

'Any gene occurs in pairs, one coming from father and one coming from mother. If both genes are defective, you call it homozygous.'

He said such people could be identified much before they are born through pre-natal diagnosis.

'Taking the sample of mother's blood, we can tell if the one gene of the baby is defective or both. If both genes are defective we can advise parents to have abortion. If one gene is defective, the doctors can advise the patient to live stress-free life to live longer.'

He said the study had thrown an opportunity for pharmacological companies to develop a drug which can degrade one of the defective proteins.

'There is a machinery in the cell which degrades abnormal protein. As you become older beyond the age of 40, the machinery becomes weaker and the cell starts accumulating both defective protein as well as normal protein.'

Lalji Singh said such individuals might get some treatment through stem cell therapy in future.

K. Thangaraj, a CCMB scientist, said it was estimated that about 60 million people in the region were carrying this mutant gene. About 30 million people in India suffer from heart disease, and by 2010 India will carry 60 percent of the burden of world's heart diseases.

Jan 21
Novel device that filters out HIV undergoing trials in India
A new device could open up a new way to treat HIV, hepatitis and cancers by filtering out infectious viruses in real time.

The device, called Hemopurifier, is being tried out for the first time in a 30-day case study on HIV, at the Jattinder Gambhir Hospital in Ludhiana, Punjab.

The goal of the study is to demonstrate that Hemopurifier can safely and effectively reduce viral load and trigger replenishment of CD4 immune cells in the absence of drug therapy.

The fieldwork, which calls for the administration of up to 12 Hemopurifier treatments, is scheduled for completion by Friday.

Hemopurifier targets all circulating strains of infectious HIV, including those varieties that cause patients to fail antiviral drug regimens.

Additionally, the device preserves the immune response through the removal of gp120 and other toxic proteins shed by HIV to kill-off immune cells, the hallmark of AIDS.

'The antiviral and immunotherapeutic attributes of our Hemopurifier offer a realistic strategy for managing a broad spectrum of infectious disease conditions,' stated Jim Joyce, chairman and CEO of Aethlon Medical. The firm is behind the device.

'In caring for those infected with HIV, we plan to enhance the benefit of drug regimens by curbing the proliferation of viral strains that cause drug resistance, and we seek to extend and improve the lives of individuals once they no longer respond to drug therapy,' added Joyce, according to an Aethlon statement.

In previous studies, treatment with the Hemopurifier resulted in robust viral load reductions in Hepatitis-C (HCV) infected patients. The researchers completed a treatment protocol of three, four-hour Hemopurifier treatments every other day over one week

Jan 21
Shah Rukh pays for treatment of two Kashmiri orphans
Bollywood superstar Shah Rukh Khan has committed to bear all the expenses for the treatment of two Kashmiri orphan children who suffered severe burns during a terrorist grenade attack in Srinagar, doctors said Tuesday.

'He has made it clear - 'no limits' - to the expenses for treating Mudassar and Amina,' Ali Irani, the head of department, physiotheraphy and amp; sports medicine at Nanavati Hospital, Vile Parle, told IANS.

A little over two months ago, the home of the two kids in Jammu and Kashmir's summer capital Srinagar was attacked by terrorists. Mudassar and Amina's parents were killed in the grenade attack, while the children suffered burn injuries.

The children suffered some grenade shrapnel injuries and severe - more than 30 percent - burn injuries and they were shifted to a local hospital in Srinagar, Irani, a physiotherapist, said.

When Irani visited the hospital under the auspices of the Indian Association of Physiotherapists, his attention was drawn to their plight.

In turn, Irani suggested that they could be shifted to Mumbai for getting the best treatment, at the Nanavati Hospital - where the children were brought to in December.

Although it would have been easy to get completely free treatment from any doctors, there would be many other expenses of the children to be handled, and Irani requested Shah Rukh Khan for help.

Not only did Shah Rukh readily agree to the suggestion but he also visited the two orphans at the hospital and has promised to take them to his home in Bandra to play with his children, Aryan and Suhana.

'Mudassar suffered severe burns on his face, while Amina's arms and hand have been burnt - but there will not be permanent damage,' Irani said.

The two children have already undergone four surgeries which were performed by Atul Shah and L. Dhami - 'We don't know how many more surgeries they will required or when they can be discharged,' Irani said.

This is not the first time that 44-year-old actor has contributed to a noble cause - according to Irani, he has been doing it for nearly the past nine years.

'He has requested that this must be kept completely confidential, but the information somehow leaked out. There is no count of the number of children that he has helped so far,' Irani said.

A few years ago, Shah Rukh had donated Rs.5 million (Rs.50 lakhs) to the children's ward of the hospital in memory of his mother, Lateef Fatima Khan, who died 18 years ago.

Jan 20
Cold Weather May Raise Blood Pressure in Elderly
When the temperature drops outside, blood pressure appears to rise in older adults, a new study shows.

The systolic (top number) and diastolic (bottom number) blood pressures both rose and fell with the change of seasons in the 8,801 people, aged 65 or older, looked at in the study by the Institut National de la Sante et de la Recherche Medicale of Paris. The average systolic blood pressure, for example, was five points higher in winter than in summer for the participants. Instances of high blood pressure (systolic blood pressure higher than 159, or diastolic higher than 94 millimeters of mercury or higher) were found in 33.4 percent of participants during winter but just 23.8 percent during summer.

The findings were published in the Jan. 12 issue of the Archives of Internal Medicine.

The reasons for the correlation, though, were not known. The authors said it could be related to the baroreflex, a mechanism of blood pressure regulation that is modified in elderly subjects or a function of the sympathetic nervous system, which helps control involuntary actions such as stress response.

Background information in the article said seasonal variance in blood pressure has been noted in past studies, but not specifically in the elderly.

"Although our study does not demonstrate a causal link between blood pressure and external temperature, the observed relationship nevertheless has potentially important consequences for blood pressure management in the elderly," the authors wrote.

Jan 20
Indians face genetic risk of cardiac attack: Study
NEW DELHI: Every 25th Indian carries a mutant gene which makes the person vulnerable to an "almost guaranteed" risk of sudden cardiac arrest,
results of a study published today suggest.

The mutated gene is carried by six crore people around the globe of which more than four crore are Indians, researchers said. 'Every 25 th Indian carries a mutation almost guaranteed to lead to heart problems,' the study said, the findings of which were published in latest edition of the journal 'Nature Genetics'.

'We can confidently say that four per cent of the Indian population is at risk of a sudden cardiac arrest as they carry this mutant gene,' Kumarasamy Thangaraj of Centre for Cellular and Molecular Biology (CCMB), Hyderabad, who led the study, said.

The CCMB is a government lab functioning under the Council of Scientific and Industrial Research (CSIR). India has a burgeoning population of heart patients and according to a previous study the country will constitute 60 per cent of global heart patient by 2010. The new findings shed light on the genetic pre-disposition that increases risk of heart disease in Indians.

People having this mutation have 25 letters of genetic code deleted from a gene MYBPC3 – responsible for production of heart muscle protein. The altered form produces an abnormal protein which disturbs the structure of heart muscle fibre.

'Those having the altered form of gene have seven folds higher chances of getting a cardiac arrest than normal people. Besides, these people have no warning about the danger which makes it worse,' Thangaraj said.

'Young people degrade the altered protein, hence they don't generally show symptoms. But with age, the degradation becomes less effective, making a mutant protein build up and symptoms develop,' said Chris Tyler-Smith, a researcher from Wellcome Trust Sanger Institute, UK, in an e-mail interview.

'From our data, around 90 per cent of people carrying this form of gene, who live to old age will develop symptoms of heart disease,' Chris said.
The mutation was discovered five years ago in two Indian families but its significance became apparent only after the study of about 1,500 people from different parts of country.

The study involving 25 scientists from four countries shows that gene has slightly higher prevalence in south Indian than in the north but affects all groups and religions, he added.

'We think that the mutation arose around 30,000 years ago in India, and has been able to spread because its effects usually develop only after people have had their children. A case of chance genetic drift: simply terribly bad luck for the carriers,' said Perundurai S Dhandapany from Madurai Kamraj University, one of the researchers.

'If this mutation is present in both copies of chromosomes (one from father and another from mother), chances of getting a heart attack are even higher than the person who has got the mutant gene from only one of the parents,' Thangaraj said. Researchers are of the view that this finding will help in identifying potential heart.

Jan 20
Humans make their own aspirin compound
LONDON: Humans form their own version of aspirin\'s active principle, known as salicylic acid, when the drug breaks down in the body.
Salicyclic acid or SA, which is responsible for aspirin\'s renowned effects in relieving pain and inflammation, may be the first in a new class of bioregulators, according to a new study.
Gwendoline Baxter and her British colleagues said their past research revealed that SA exists in the blood of people who have not recently taken aspirin.
Vegetarians had much higher levels, almost matching those in patients taking low doses of aspirin.
Based on those findings, the researchers previously concluded that this endogenous SA came from the diet, since SA is a natural substance found in fruits and vegetables.
Now the group reports on studies of changes in SA levels in volunteers who took benzoic acid, a substance also found naturally in fruits and vegetables that the body could potentially use to make SA.
Their goal was to determine whether the SA found in humans (and other animals) results solely from consumption of fruits and vegetables, or whether humans produce their own SA as a natural agent to fight inflammation and disease. The results reported in the study suggest that people do manufacture SA, according to a release of American Chemical Society.
\"It is, we suspect, increasingly likely that SA is a biopharmaceutical with a central, broadly defensive role in animals as well as plants,\" they state. \"This simple organic chemical is, we propose, likely to become increasingly recognized as an animal bioregulator, perhaps in a class of its own.\"

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