NZ scientist using skin cells to study killer illness

The NZ Herald
11:00 AM Saturday Jan 17, 2015

NZ scientist leads British project exploring process of incurable and fatal motor neuron diseases.

Kiwi Gareth Miles is heading the British research project.

Kiwi Gareth Miles is heading the British research project.

A New Zealand scientist is heading a project that uses stem cells grown from patient skin samples to study the process of the incurable and fatal motor neuron disease.

The disease, which can leave people locked in a failing body, has come under the spotlight as a result of last year’s Ice Bucket Challenge fundraiser and the movie, The Theory of Everything — about theoretical physicist Stephen Hawking, who has a rare form of the disease.

An early step in understanding and ultimately treating the disease process is being taken in a British research project led by Dr Gareth Miles, 38, who was educated at Rosmini College, Takapuna and the University of Auckland.

Now a senior lecturer at the University of St Andrews school of psychology and neuroscience, Dr Miles said new developments in stem cell technology opened up exciting possibilities for developing new treatments and ultimately finding a cure.

Motor neuron disease (MND) is a progressive neurodegenerative condition that attacks motor neurons — specialised nerve cells in the brain and spinal cord — causing loss of signals from the brain to muscles and eventually leading to paralysis.

The disease affects 300 Kiwis at any one time and the charity funding the research project, the Motor Neuron Disease Association, says it affects 5,000 people in Britain.

Dr Miles said researchers adopting stem cell technology could now turn samples of human skin into a replica of a motor neuron for laboratory study. “We can’t go in and grab people’s motor neurons out of a spine. But this way we have an actual human cell we can grow in a dish and study and test.”

The function of motor neurons from healthy people could be compared with those from patients suffering from different forms of MND.

A report on the joint project between St Andrews and University of Edinburgh scientists was published this week by the journal Nature Communications.

The work has so far shown that before any signs of damage, motor neurons affected by MND lose the ability to generate the electrical signals to the muscles due to changes in proteins called ion channels.

“Our work highlights ion channels as potential targets for future therapies,” said Dr Miles.

“It also demonstrates that studying the function of stem cell-derived motor neurons could be important for the development and testing of new drugs to treat and eventually cure the disease.”

Motor neuron disease
• Attacks motor neurons — nerve cells in the brain and spinal cord that control movement.

• People can still think and feel but become unable to move, talk and eventually breathe.

• 5,000 people in Britain have it at any one time.

• 5 die of the disease every day in Britain.

• 300 people in NZ suffer from it at any one time.

• Stem cell-derived motor neurons allow closer study and tests for a cure.

By NateMcNabb Posted in Facts

Can the damaged brain repair itself?

Siddharthan Chandran
TED Talks

After a traumatic brain injury, it sometimes happens that the brain can repair itself, building new brain cells to replace damaged ones. But the repair doesn’t happen quickly enough to allow recovery from degenerative conditions like motor neuron disease (also known as Lou Gehrig’s disease or ALS).

Siddharthan Chandran walks through some new techniques using special stem cells that could allow the damaged brain to rebuild faster.

By NateMcNabb Posted in Facts

One more reason to get a good night’s sleep

TED Talk
Jeff Iliff
Neuroscientist

The brain uses a quarter of the body’s entire energy supply, yet only accounts for about two percent of the body’s mass. So how does this unique organ receive and, perhaps more importantly, rid itself of vital nutrients? New research suggests it has to do with sleep.

Neuroscientist Jeff Iliff ‘s research follows two main paths. The first is the exploration of how the brain’s support cells, called glia, contribute to maintaining the proper environment for neuronal function and how their failure in conditions like vascular dementia, stroke, and traumatic brain injury leads to neurodegeneration. The second seeks to define the basic cellular mechanisms by which brain blood flow is coordinated up and down the vascular tree. Now an Assistant Professor of Anesthesiology and Perioperative Medicine at Oregon Health & Science University, Jeff was a part of a University of Rochester Medical Center team that discovered a brain cleansing system, which they dubbed the “glymphatic system.”

By NateMcNabb Posted in Facts

Eat, Fast and Live Longer

Eat, Fast and Live Longer explores the recently accepted concept that fasting is key to longevity in the human being. Here science takes the lead to discover what can be done to change the way we live. No pills, no medicines simply fasting.

BBC Horizon 2012

This revolutionary insight looks at a 101 year old Indian man who runs marathons; here we see him running in the London marathon and is happy that the secret lies in what and how much he eats. Mr Singh is remarkable and has never had surgery and never takes medicine…his diet is a simple diet of fresh food and eats normally only a childs type portion.

A scientific theory has been existent for as long as Mr Singh has been alive … it is this theory that Michael Moseley examines in this documentary.

It isn’t just what we eat but how and when we eat it…following from the Great Depression 1929 – 1033 remarkably, life expectancy rose by 6 years. What is the link between calorie restriction and longevity? Professor Luigi Fontana has conducted studies of many people who have restricted their diets.

Meet the CRONIs (Calorie Restrictor on Optimal Nutrition) who eat bucket loads of fruit…and in many instances they eat just the skins and not the main part of the fruit!! 1900 cals per day v 2300 cals per day and this is the basis of a challenge between one of the CRONIs and Michael when they head to a fitness centre to be assessed. Body fat 11% in the CRONI V 27.1% in Michael. The results are very damning and quite conclusive from these tests. The thought is that these results can be reversed by a year on the new diet.

We try now to see if the benefits of this diet can be replicated in a way which avoids the necessity to embark on this extreme diet. In the lab there are genetically engineered mice which demonstrate a fantastic difference in life expectancy. A look at a certain population within Ecuador demonstrates that none of them have died of cancer or diabetes but they are small, dwarf-like persons. IGF1 is a growth hormone which has a considerable affect upon certain people…but is there a link?

Protein is a link…which pushes us to drive forward instead of slowing us down. How do we lower IGF1…fasting… 3 days and 4 nights of fasting can show very impressive results….water, black tea and one 50 cal cuppa soup… Sitting in a Korean restaurant having eaten nothing all day is not a fantastic thought.

Hunger does not build and build but comes in waves which pass…glucose stores are depleted and you then start burning fat deposits and the liver produces less IGF1; or that is the theory on test here….has it been worthwhile? The IGF_1 dropped by a half and reduces changes of cancer. This is an incredible discovery.

Along with a change in diet, fasting will need to be once every couple of months to maintain this dramatic change…but is there anything better which is less difficult to achieve? On to another study in Chicago where the research seems easier….alternate day restrictions. Fast day..feed day…fast day…feed day. Animal and human trials seem to indicate this is a much more palatable mechanism to achieve results.

Eat whatever you want on the feed day…then eat controlled food on the fast day.

Finally, Baltimore and the affects of ageing on the brain. Another mouse takes centre stage and these mice put on the feed/fast diet against standard diet and the results are incredible. Sporadic bouts of hunger actually trigger new neurons to grow…possibly in terms of evolutionary terms it assists survival…fasting does seem to make you sharper!!

Simple conclusion: Alternate day fasting is definitely better than continual calorie restriction.

Micheal is going to embark upon a 5 days normal and 2 days fasting diet….then test and describe the results after 5 weeks on the diet.

His Initial Results:

  • Lost over a stone (14 lbs)
    Body fat down from 27% to 20%
    IGF-1 dropped by 50%
    Diabetic glucose back to normal
    Cholesterol great improvement.
By NateMcNabb Posted in Facts

David Yates’ personal account of motor neurone disease

Five months ago David Yates was able to hold his grandson Awa David but his decline means that is no longer possible.

Five months ago David Yates was able to hold his grandson Awa David but his decline means that is no longer possible.

By David Yates
10:12 AM Wednesday Sep 22, 2010

My name is David Yates. I am a retired medical GP and viticulturalist. I have advanced Motor Neurone Disease (MND). I cannot speak and I am totally dependent on others in order to stay alive.
I have been typing with my right middle finger for some time, but am now learning a new programme, which will enable me to use predictive word typing, which will be most welcome.

The end of March 2010 marked the sixth anniversary of the onset of my MND. I would like to mark the occasion, by presenting some suggestions to newly diagnosed MND people and their families based on my experiences.

Retrospectively, my MND started in March 2004, presenting as perceived reduced fitness despite excellent aerobic fitness levels.

I was referred to a cardiologist in July 2004 and failed the ECG exercise stress test because of extremely tired calf muscles, despite the fact that I was extremely fit. (This could be added to the list of presentations of MND).

In 2004 we donated one dozen wines, containing Riesling and chardonnay gold medal winning wines – made exclusively from grapes, sourced by wine companies, from the Yates Vineyard – to Jarrod Cunningham, for a charity auction on his behalf.

Before I retired, I had been his GP and the Hawke’s Bay representative team doctor. MND was earlier diagnosed in London, where he was playing professional rugby.

It is ironic that, at the time, I was in the early stages of MND myself.

I had problems with bilateral ankle oedema (swelling) over the summer of 2006, a known consequence of MND.

I then developed Atrial Fibrillation and right heart failure – complete with flaky, unhealthy skin, from head to my now-purple legs and feet – as a consequence of progressive MND.

I had no cardiac predisposing factors whatsoever.

I have required medication since then, which has greatly restricted my life. I suspect heart failure will kill me before MND does.

I totally accept and respect the advice from my neurologist – of international repute in the MND field – was statistically and practically correct when he reassured me that there was no hurry to introduce Bilevel Inspiratory Positive Air Pressure (BIPAP) overnight respirator.  However, I regret that I did not heed the advice of the respiratory physician to do so.

As a result of my experiences, I would recommend that those MND people with ankle oedema consider early BIPAP.

Bilevel inspiratory positive air pressure means it inflates my lungs, then allows them to deflate like a person on a ventilator

The use of a BIPAP, especially overnight, rests the diaphragm by enabling breathing to occur without effort. Studies show that those who use it have an improved quality of life.  My medical and personal opinion is that BIPAP should be introduced earlier.

Presuming you are not claustrophobic, overnight wearing of the mask is not without problems, especially with the eventual loss of facial muscle bulk and fat.

If you have problems with a standard mask, try the Fisher & Paykel FORMA FlexiFit Full Face one.

In April 2010 I heard of people in New Zealand, with altered brain function – such as post-stroke people, or those with Parkinson’s – singing in a choir to improve their speech.  In June 2005 as I was losing my speech, I noticed that my enunciation was clearer if I sang a song, even though my singing voice was not as it was.

It was clear to me then that two areas of the brain were involved. I had always intended to resume my singing lessons in my retirement. However, sadly for me I lost my singing voice with the total loss of my speech.

Choking is one of the first symptoms that MND people will experience. It is very uncomfortable, complete with a feeling of impending doom, but rarely dangerous.

The laryngeal reflexes are so exaggerated that any material, food or sputum, is vigorously expelled to avoid entry into the lungs.

Eventually people with MND will need nutrition by drip via PEG (Percutaneous Endoscopic Gastrostomy, a tube endoscopically inserted through the abdominal wall into the stomach).  I’ve coped with not eating by modifying one of the central foundations of Alcoholics Anonymous – that oral food is not good for me.

This enables me to enjoy watching Rick Stein etc, by focussing on the place of food, and its variations, in different cultures and not the food itself.

I’m interested to hear via davidyates@paradise.net.nz if other people with MND also don’t feel hungry or thirsty.

I work on the premise that I can’t feel hungry if I can’t anticipate eating a juicy steak, or delicious Asian or Middle Eastern meal.

For all those potential helpers out there, please remember that the full-time family carer might be alone.

They have to do the jobs that the person with MND once used to do, plus their own jobs around the house and property, plus actually care for the patient, while finding time to address their own needs.

Even after some years with MND it is still difficult to accept that I can’t physically help at all. Any external help is always gratefully appreciated.

About 15 per cent of people with MND develop significant impaired cognition. Intact cognition enables us to “see” and “hear” a word, yet it’s intelligible when we try to speak.  People with MND consider it very demeaning to be addressed in the third person through their carer.

Please speak to them as if there’s nothing wrong and they’ll respond in some way. People with MND might also have Bulbar Palsy (BP) with loss of control of emotions. Don’t be embarrassed if they do cry or laugh. Ignore an episode and it will quickly pass.

This is a list of suggestions for people with MND:

Try to retain good humour and a positive attitude as much as possible and set goals. While a scientifically-proven cure is currently not available, you never know when the treatment breakthrough will occur. The dilemma arises when you become concerned about the emotional and physical effects on your family, of 24/7 care in order to keep you alive. Resolution is usually reached with the family’s reassurance that they can do it and if it’s still a pleasure for you to wake each morning to see your loved ones.

Maintain any island of independence for as long as possible.

In 2008, I had the most bizarre accident happen with my laptop computer. I had it sitting on my lap and moved it a bit. Some time later I hear the sound of running water. It transpired that a metallic protrusion on the computer had dislodged the PEG cap as it lay under my shirt and that my (nowadays) liquid gastric contents were pouring on to the floor. Since then I’ve used a lightweight body bandage to retain the PEG tube securely in place out of harm’s way.

Maintain sensible passive stretching exercises, to prevent contracture and deformities. Remember that there is decreasing joint protection of the joint by the muscles as MND progresses, so don’t overdo the stretching.

If you use a computer, maintain a master record of common things repeated to others in emails, to save duplication of typing.

Remember many adjustments can be made to your mobility chair, including memory cushions to improve your comfort.

I hope that I have given you an objective insight into the lives of people and their families, who are affected by MND.

By NateMcNabb Posted in Facts

Want to live longer and avoid heart disease? Eat porridge

Rolled oats. - Source: iStock

Rolled oats. – Source: iStock

People who eat more whole grains are more likely to live longer and avoid heart disease, but such a diet does not affect the risk of dying from cancer, a US study says.

The findings by researchers at Harvard University appear in the Journal of the American Medical Association (JAMA) Internal Medicine today.

Scientists examined the records of more than 74,000 women and nearly 44,000 men from the mid-1980s until 2010.

They found that the more whole grains people reported eating, the lower risk they had of dying, particularly from heart disease, after adjusting for factors such as age, smoking and body mass index.

Every serving (28 grams per day) of whole grains – such as brown rice, oatmeal, whole wheat bread and pasta – was associated with five per cent lower mortality, and a nine per cent lower risk of dying from heart disease.

However, eating more whole grains did not make cancer deaths any less likely.

“These findings further support current dietary guidelines that recommend increasing whole grain consumption to facilitate primary and secondary prevention of chronic disease and also provide promising evidence that suggests a diet enriched with whole grains may confer benefits toward extended life expectancy,” the study said.

By NateMcNabb Posted in Facts

You’re Not You

I’m looking forward to seeing this!

Academy Award® winner Hilary Swank and rapidly rising star Emmy Rossum intertwine in You’re Not You, a surprisingly funny, defiantly unsentimental and starkly moving portrait of a high-stakes friendship between two women — one literally in need of a voice, the other discovering the full power of hers.

By NateMcNabb Posted in Facts

The Theory of Everything

I saw this the other day and absolutely loved it.  Not so much for the story, but the relatable real life struggle with MND.  If you haven’t already, go see it… In Theaters November 7th, 2014

Starring Eddie Redmayne (“Les Misérables”) and Felicity Jones (“The Amazing Spider-Man 2”), this is the extraordinary story of one of the world’s greatest living minds, the renowned astrophysicist Stephen Hawking, who falls deeply in love with fellow Cambridge student Jane Wilde. Once a healthy, active young man, Hawking received an earth-shattering diagnosis at 21 years of age. With Jane fighting tirelessly by his side, Stephen embarks on his most ambitious scientific work, studying the very thing he now has precious little of – time. Together, they defy impossible odds, breaking new ground in medicine and science, and achieving more than they could ever have dreamed. The film is based on the memoir Travelling to Infinity: My Life with Stephen, by Jane Hawking, and is directed by Academy Award winner James Marsh (“Man on Wire”).

By NateMcNabb Posted in Facts