Experiments on naked mole-rats may lead to better treatments with fewer side effects for humans suffering from painful inflammatory arthritis, according to a new study published Friday in the journal Science.

The partially blind, hairless, wrinkly, cold-blooded mammals were good candidates for the study because of their unique insensitivity to acid-induced pain.

Native to sub-Saharan Africa, the naked mole-rat makes its home burrowed deep in huge colonies in underground tunnels, with access to very little oxygen and high levels of carbon dioxide.

“Exposure to high levels of carbon dioxide in turn would evoke acidosis, but the naked mole-rat has evolved in a way to manage this acid load and to be able to live in acidic environments, which for most other rodents in the world would be uninhabitable,” said neuroscientist Ewan St. John Smith, the lead author of the study.

Scientists say in most mammals – including humans – exposure to acid stimulates special channels at the tips of sensory neurons, called nociceptors. Once these nociceptors are activated, they transmit a signal along the spinal cord to the brain.

But among naked mole-rats, although acid triggers the nociceptors, their pain-sensing neurons contain proteins with genetic mutations that prevent neurons from firing off pain signals in response to acid.

Inflammatory disorders, such as arthritis, are normally associated with acidosis, scientists say.

“If a drug could now be developed which acts on these particular proteins on the sensory neurons, you could limit the ability of acid to cause pain in patients with arthritis and other inflammatory disorders,” Smith said.

According to the Centers for Disease Control and Prevention, an estimated 50 million U.S. adults (about 1 in 5) report doctor-diagnosed arthritis. That number is projected to increase to 67 million by 2030.

“We can learn a lot from comparative physiology. By understanding how an animal adapts to its environment, this will teach us a lot of our own biological system,” said neuroscientists Gary R. Lewin, one of the authors of the study, conducted by the Max Delbrück Center for Molecular Medicine in Germany.

The naked mole-rat has been the subject of other groundbreaking studies. The buck-tooth rodent has been found to have an unusually long life span; it can live three years longer than other rodents and is resistant to cancer.

Most recently, scientists sequenced and analyzed the entire genome, which Smith and his colleagues hope to be able to use for their next phase of research.

“It’s cool to know how things work, especially when things don’t work as you expect them to,” Smith said.

Excessive hand sweating or as it’s known as palmar hyperhidrosis is the most common form of localized excessive sweating. It’s intensity can vary among people. The intensity of excessive hand sweating can vary from just moisture on the hands to literally dripping wet. Obviously the extreme cases are very troublesome and can prevent those patients from performing simple daily tasks. It does have a genetic relation and about 50% of the patients have a family history with the condition. Recently the exact genetic location was found but a practical treatment with these new findings is still a long ways off. It can affect a person on a functional, emotional, and social level.

This condition is primarily a physiological issue but it can be aggravated by emotional stimuli. Physiological meaning that the person cannot control the level of sweating or timing of it. Attempts to control this condition are numerous and they range from lotions, pills, herbal medications, bio feedback, electric currents (iontophoresis), acupuncture, to surgery.

In the surgery procedure, the surgeon enters the thoracic cavity on the left and right side of the chest, then locates the sympathetic nerve chain and disrupts the chain at a very specific location. The disruption can be made by cutting the nerve, excising a piece of the nerve, or clamping. All methods are equally effective. Success rates range from 98 to 99%. There are some side effects from this operation, and the main one is compensatory sweating

However, these suggestions seem to work generally for people suffering from this condition
-Botox shots, temporarily stop sweating for 6 months
-Pills (such as Robinul) stop sweating for a few hours
-Electric currents (Drionic machines) curb the sweating temporarily.
In summary, Healthmaster recommends you visit your doctor and discuss with Him/Her.

As his weight ballooned to 70 stone, even seemingly simple tasks represented a huge challenge for Paul Mason.

For the best part of a decade, the former postman relied on help from carers while confined to his bed.

Each day around £75-worth of takeaways and chocolate would be delivered to his door.

His daily intake of 20,000 calories – nearly 10 times the recommended average – saw him tagged in the media as the “world’s fattest man”.

Everything had to be within arm’s reach at his Ipswich home, including a feast of snacks to satisfy his constant need for a “quick fix”.

Mr Mason, 50, said he would barely sleep as he went on “24/7″ binges of fish and chips, Chinese food and kebabs.

“You have no sense of time, months all rolled into each other,” he said.

“For several years I didn’t sleep properly because I was always eating. All I could think of was getting a quick fix of food.

“I made sure I had supplies around my bed – chocolate, crisps and sausage rolls. I got to the stage where I had an addiction.

“It was 24/7 eating. You don’t feel full and you don’t feel hungry.”
Nearly two years ago Mr Mason had life-saving NHS gastric bypass surgery to control his weight.

But first he had to face up to the “demons” that he says led to his food addiction.

He was bullied at school – not for his weight but for his height, as he quickly shot up to 6ft 4in (1.93m).

He also endured heartbreak when a four-year relationship with a woman ended in the mid-1980s.

Soon after, his father died, aged 52, and he helped care for his mother who suffered from arthritis. She died two years ago aged 76.

Mr Mason, one of three children, said food was always a major part of family life – and something he turned to for comfort.

“My dad used to insist when I was young that I cleared my plate,” he said.

Mr Mason consumed about £75 worth of takeaways and chocolate a day
“He would say ‘I haven’t worked all those hours for you not to clear your plate’. We had big meals. There was always a constant battle between us to see who could clear their plate the quickest.”

After leaving school, he did a mechanic’s apprenticeship but would binge on food while skipping college lessons.

His weight gradually increased during his teens and by the time he was 30 it had topped 25 stone (158kg).

But it was in the early 2000s when his weight really shot out of control as he grew from 40 to 70 stone (250 to 450kg).

Mr Mason said he barely left his home in Ipswich, Suffolk, between 2001 and last year, aside from occasional hospital trips.

In early 2010, he underwent the bypass surgery. Since then, he has shed 40 stone as he transformed his diet and, gradually, became more active.

That brought with it new stresses, including learning to cope with venturing outside.

“I remember travelling to hospital in the ambulance for my operation and the traffic really freaked me out,” he said.

“I had become institutionalised.”

He has also had to deal with being recognised.
“I do get jibes – people drive past saying ‘fat boy’ and things like that,” he said.

“You get people staring at you but it doesn’t bother me.

“You don’t do this because you want to become the world’s heaviest man.

“Anyone can come up to me and argue about ‘why should you get that help and why have you got that?’

“We live in a free country. When I talk to them and explain what my problems are they are more understanding. It’s an illness.”

Even with his dramatic weight loss, his battle for more surgery has continued as he has been left with vast folds of excess skin.

Doctors have told him his weight, currently around 30 stone (190kg), needed to reduce further and then stabilise at his target weight before he could have surgery to remove the skin.

But he said it was hindering his effort to reach his target of about 17 stone (107kg).

“I don’t want to be a drain on society but I can’t get on with my life without this surgery,” he said.

“I feel like I have been left high and dry. My life is on hold because it is stopping me from getting back into society.”

A spokesman for NHS Suffolk said a panel, including clinicians, decide on whether such operations should take place.

He said: “A patient must have a stable weight before he or she is considered.”

Prof David Haslam, from the National Obesity Forum, has backed Mr Mason’s fight for further surgery.

He said: “By undergoing the first operation to have gastric bypass surgery, which would normally cost about £9,000, Mr Mason has saved the NHS tens of thousands of pounds.

“The least the NHS can do now is give him the operations to remove his excess skin.

“It’s not a simple case of just snipping the skin off – it’s complex plastic surgery but it’s almost inevitable in a case such as this.”

Mr Mason is determined to win his weight battle – and says he is driven on by flashbacks of his previous condition.

“I don’t want to block out what happened to me because it spurs me on now,” he said.

“It stops me from going back to how I used to be.”

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