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Showing posts with label medicine. Show all posts
Showing posts with label medicine. Show all posts

Wednesday, April 20, 2011

Is Chocolate the Tastiest Natural Cough Medicine of All?

By: Care2 Causes Staff
From: http://www.treehugger.com/Box of Chocolates Image
Photo credit: CoCreatr/Creative Commons

This guest post was written by Robin Marty, a writer for Care2 Causes.

As if we needed another excuse to have some chocolate, new research shows that it may be an effective cough suppressant, too.

New Scientist reports:

An ingredient in chocolate may actually be a more effective cough medicine than traditional remedies, a new study suggests.

And not only that, the UK-based research showed that the cocoa-derived compound had none of the side effects associated with standard drug treatments for persistent coughs.

"These sorts of coughs, often lasting for weeks after a viral infection, can be difficult to treat, especially since it is not possible to give large doses of opiate-based medication to patients due to the side effects," says Peter Barnes, professor of thoracic medicine at Imperial College London, UK, who led the study.

In the study, the testers were given theobromine, a component of chocolate, codeine, or a placebo. Those who had the theobromine were less likely to cough than those who received the placebo, and even those who received codeine who coughed at the same rate as the placebo.

So the next time you have one of those nagging coughs you can't seem to shake, chocolate may be the answer.Of course, getting the weight off afterward is another issue.

Wednesday, May 26, 2010

Doctor, 100, still working after delivering 18,000 babies

A doctor who has delivered 18,000 babies over a career spanning more than 60 years is still practising at 100 years old.
Doctor, 100, still working after delivering 18,000 babies: Dr  Walter Watson
Dr Walter Watson Photo: Barry Bland / Barcroft

Dr Walter Watson, nicknamed "Papa Doc", has been present at the births of generations spanning from grandparents down to grandchildren during his 63 years as an obstetrician.

The doctor from Augusta, Georgia, USA is thought to be the oldest practising medic in the world.

Among his patients is Sabra Allen, 77, who he has treated for 59 years. He has delivered 17 members of her family.

“He delivered all five of my kids and twelve of the grandkids,” said Mrs Allen, a retired hospital administrator.

“There ain’t no one like him, he’s the best.”

Dr. Watson, who still goes to work every day, said: “There is nothing quite as amazing at witnessing the miracle of life.

“Trouble is I remember the births with complications more vividly than the ones that went perfectly. Once you’ve done several thousand they start blending in together.”

Dr. Watson qualified at the brink of the Second World War but served in Korea until 1947.

When the war ended he returned to Georgia, his wife of 65 years Audrey and the practice of medicine.

Dr Watson turned 100 on February 25.

“I get up at 6.45, have my breakfast and get to the hospital by 8.30,” he said.

“I stopped delivering babies when my eyesight got bad but I do my rounds at the nursing stations and operating rooms just like I’ve always done.”

The women’s centre at University Hospital in Augusta, Georgia, bears Dr Watson's name and there is a bronze statue of him holding a newborn baby.

Dr Watson also delivered his colleague at the hospital, Dr Michel McDonough, who is young enough to be his grandson.

Dr. McDonough said: “His work ethic is unsurpassed by anybody.

“He was around before beepers – back then you were either at the hospital, at home or at church.”

Dr. Watson says he has no plans for retirement despite suffering from minor arthritis and diminished eyesight and hearing.

“I love medicine and I love having contact with people," he said.

“It gives me a reason to crawl out of bed in the mornings.”

According to records Dr Watson is the oldest practising doctor.

The previous record holder was Dr. Leila Denmark, also of Georgia, who practised until she turned 102 in 2000.

Thursday, November 19, 2009

Conjoined orphan twins Krishna and Trishna successfully separated after 29-hour operation

By Richard Shears

From: http://www.dailymail.co.uk/

Two sisters joined at the head have survived 29 hours of surgery to separate them.

Krishna and Trishna, whose mother died giving birth to them in Bangladesh almost three years ago, were operated on in Melbourne by 16 surgeons.

Anaesthetists, nurses and other medics also worked around the clock in a procedure that lasted 16 hours longer than expected.

Leo Donnan, head of surgery at the Royal Children's Hospital, said it was a once-in-a-lifetime operation for the medical team and every minute was tense.

Trishna (L) and Krishna (R), the Bangladeshi set of twins joined at the head before the operation to separate them

The toddlers have a 25 per cent chance of making it through without any harm at all - and there was also the strong possibility that one or both could die.

But after a team of 16 surgeons, assisted by anaesthetists, nurses and other medical staff had worked around the clock in rotation, Mr Donnan stepped from the operating theatre to announce with a smile: 'They have been successfully separated.'

The dangerous operation had taken nearly 13 hours longer than anticipated - including 27 hours to separate the little girls, aged two years and 11 months, and a further two hours of work by plastic surgeons to seal the ensuing holes in their heads.

And although Mr Donnan said there was 'still is a long way to go' with the girls having a 'very difficult time ahead of them,' he said that the way the operation had gone was an historic moment for the hospital and for the twins 'an even more historic moment.'

The Royal Children's Hospital surgical team operate to separate twins Krishna and Trishna

Leo Donnan (C), chief of surgery at Royal Children's Hospital, speaks to the media after Australian doctors successfully separated the twins

The twins had come to the attention of a Melbourne-based organisation, Children First Foundation, which arranged for them to be flown to Australia for an operation that could give them a new start in life - if successful.

After weeks of careful planning, studying X-rays and monitoring the children's daily health and behaviour, the medical teams arranged their working hours, fully aware that the task ahead would not be easy.

On Monday Krishna and Trishna were anaesthetised and placed faced down on two adjoining operating tables. Plastic surgeons stepped forward to open up the skin and then neurosurgeons carefully opened a small area in the skull.

This 'window' allowed surgeons to insert their instruments to separate the brain tissue and blood vessels at the back of the girls' heads.

Krishna and Trishna pictured a year after they were born

Next the twins were carefully lifted and turned over so they were face up, enabling surgeons to complete the separation of the skulls.

Bone had to be severed and connecting tissue separated.

Finally, for the first time, the twins were able to be moved apart and two teams of plastic surgeons set to work sealing the holes in their skulls.

'This is a once-in-a-lifetime operation that teams would do,' said Mr Donnan, adding that the mood inside the operating theatre, where every minute was filled with tension, had changed after the separation.

'It's been a very nice stage to move into,' he said.

And there had been concerns, with problems occurring with Krishna's kidney, but when that crisis eased everyone, according to plastic surgeon Tony Holmes, 'was particularly optimistic and excited.'

He explained there had been a great deal of preparatory work before the operation could even begin.

'There's a lot of mucking around at the beginning of an operation like this,' said Mr Holmes.

'It's mainly for positioning and getting all the tubes right so there's no pressure on the eyes, no kinks in the tubes.'

Mr Holmes and another plastic surgeon, Andrew Greensmith stripped back the skin and that allowed neurosurgeons to create a one inch by seven inch window in the skull so that surgeons Wirginia Maixner and Alison Wray could separate blood vessels and brain matter.

Later the plastic surgeons came back to the girls, closing the brain lining and skulls with artificial caps and closing the skin.

The twins are now in intensive care. It will be weeks before it is known if the operation has been 100 per cent successful - but surgeons said they were remaining optimistic.

  • How doctors worked a medical miracle and separated the twins:
Graphic showing the operation

Conjoined twin graphic

Conjoined twins graphic

Conjoined twins graphic

Conjoined twins graphic


Read more: http://www.dailymail.co.uk/news/worldnews/article-1228500/Conjoined-orphaned-twins-Krishna-Trishna-successfully-separated-29-hour-operation.html#ixzz0XKpT3QR2

Tuesday, December 16, 2008

SmartHand: Cyborg Limbs Will Feel Like User's Own

| posted by Kit Eaton

SmartHand is a European collaborative project to develop a next-generation robotic prosthetic limb, and as part of the project Swedish researchers have successfully demonstrated a neat psychological trick that makes wearers feel like an artificial limb is actually part of their body.

A report published by the team at the Karolinska Institutet and Malmö University Hospital shows success in what's known as the "rubber hand" illusion. Amputees' brains can be fooled into thinking that a fake hand is actually wired into their nervous systems, despite the fact that the hand has no sensory inputs whatsoever.

It's a similar effect to the solution discovered by V.S. Ramachandran to alleviating phantom limb pain: In his work the brain is fooled into thinking it's getting sensory inputs from a missing limb by an optical illusion with a mirror, and the mental side-effects of this relieve pain. The work challenged the existing medical thinking that damaged severed nerve endings were the cause of the pain.

In the Swedish case, Prosthetic limb users were subjected to a different visual trick: Someone visibly touched the artificial hand while out of the patient's sight their arm stump was being stimulated. Apparently the illusion is very convincing, and the deep psychological basis for the effect was further demonstrated by subconsciously-induced sweating when the "rubber" hand was pricked by a needle. The results suggest that the artificial hand has been completely adopted into the user's body image at a neurological level.

The research team sees this as evidence for a possible new way of connecting up future prosthetic limbs sensor-equipped hands to a patient, and it's potentially a much simpler solution than having to directly couple electronics into the nervous system surgically. And since the illusion is similar to Ramachandran's study, there's a possibility that phantom limb pain may also be reduced.

The research into the more mechanical aspects of SmartHand have produced an amazing thought-controlled product that's ever-evolving, with the goal of totally replacing a missing forelimb with a sophisticated robot. But it's not alone: in the US there's Dean Kamen's robotic limb project.

This device is already so sci-fi-ishly sophisticated it's been dubbed the "Luke arm" after the artificial limb given to Luke Skywalker in the Star Wars movies. Kamen's project is concentrating on developing the motorized engineering and nerve-input interface--it's directly wired into patient's nerves to control its motors--but has already shown remarkable results. Famously one test subject felt so much at ease operating the arm that he was able to rest a mug on a nearby table without watching, and carrying on a conversation at the same time.

Kamen's work was initially aimed at replacing limbs lost by soldiers on duty, but the Luke arm and SmartHand suggest that limb-loss victims of all types, through accidents and as civilian war casualties, have amazing artificial limbs to look forward to in the future. They'll work just like the real thing, maybe even being stronger, and they just might feel like they're a natural part of the body. But the costs will have to be driven down from multi-million-dollar levels.

[via Medgadget]

Friday, November 7, 2008

How Anesthesia Knocks You Out

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By Jeanna Bryner, Senior Writer

During surgery, anesthesia immobilizes a person while putting them in a sleep-like state where there is no awareness and no pain.

But after more than a century of "going under," we still do not fully understand how anesthesia works, said Anthony Hudetz in the Department of Anesthesiology at the Medical College of Wisconsin, Milwaukee.

New research by Hudetz and his colleagues now suggests that anesthesia somehow disrupts information connections in the mind and perhaps inactivates two regions at the back of the brain.

Here's how it works: Think of each bit of information coming into the brain as the side of a die. Then, the first step in consciousness would be to identify which number or state turns up once you throw the die. But you can't identify that number without access to the other faces of the die. That's because every experience, every perception (or number in this example) is connected to all the others. When the faces of the die somehow become disconnected, a person would fall unconscious.

This conception of anesthesia's workings, based on a review of past research along with the researchers' own studies, is detailed in the Nov. 7 issue of the journal Science.

Here's why it matters: In one of every 1,000 to 2,000 operations, a patient may temporarily wake up (regain consciousness) or even remain conscious during surgery, the researchers say. Understanding how anesthetics turn off consciousness could help scientists to develop better monitors for anesthetized patients.

"We can also develop better anesthetic drugs that would target consciousness itself, because today's anesthetics affect every cell in the body," Hudetz told LiveScience. "They suppress the heart and they affect all the major organs; they affect the circulation; they suppress blood pressure, heart rate. And this is tolerable but we mostly operate on injured people and sick people, and in that case these side effects of anesthetics are undesirable and should be minimized."

Wednesday, October 15, 2008

How Cannabis Could Save Your Life


Image: United States Fish and Wildlife Service

The list of medical uses for marijuana (Cannabis Sativa) continues to grow. The Journal of Natural Products recently published a paper outlining the newly isolated antibiotic effects of the class of molecules known as cannabanoids. This group includes the non-psychoactive cannabichromene, cannabigerol, and cannabidiol but also includes the well-known and definitely psychotropic tetrahydrocannabinol (THC).

Researchers believe that the powerful antibiotic effects of cannabanoids can be enlisted in the increasingly difficult fight against MRSA (Methicillin-Resistant Staphylococcus Aureus) and other ’superbugs’ that have evolved resistances to most modern antibiotics. MRSA is perhaps the best known of these superbugs, often running rampant in hospitals, with estimates of up to 1.2 million hospital patients becoming infected and possibly over 100,000 patients dying each year in the United States due to lack of effective medicines against them. The known effectiveness of cannabanoids and the fact that they have not been used before, and therefore no bacteria has yet developed a resistance to them, could prove to be a very valuable tool in the arms race against these constantly changing bacterial strains.

microscopic mrsa
Image: Current Global News

In some ways the notion of cannabis having antibiotic effects is counterintuitive. This is because it has been proven that the act of smoking marijuana actually increases vulnerability to infections. This vulnerability however seems to be a result of inhaling marijuana smoke or even smoke in general and likely has little to do with the presence or absence of cannabanoids.

Contrastingly, cannabis sativa itself, when not smoked, has been known since the 1950s to have strong antibacterial properties. However, as the technology of looking into how molecules are structured and how they interact was in its infancy at the time, the researchers were unable to determine which marijuana compounds were actually causing the antibacterial effects. As the social and research climates started to grow increasingly hostile to the investigation of black-listed substances in the US and around the world, antibiotic cannabis studies were soon shelved and ignored until they were finally picked up again fairly recently by modern science.

mrsa on algae dish
Image: Chemung County

With all of the advances in chemical analysis made since the fifties, the new batch of scientists studying cannabis related antibiotics were now able to pinpoint the basic backbone structure that is common to all cannabanoids, to be the active component in killing off bacteria. Now that the bio-active section of the cannabanoid molecules has been identified, researchers and drug makers are busy developing and testing antibiotic drugs as well as considering potential uses for cannabanoids in various soaps and cleaning products. At present they are focusing their efforts on the derivatives of the non-psychoactive cannabanoids. This is presumably because the US FDA, and other governing bodies world-wide, might have a hard time with people getting high in order to cure a bacterial infection; not to mention getting high by just washing their hands.

Sources:1,2,3