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Showing posts with label medical. Show all posts
Showing posts with label medical. Show all posts

Fish Oil Prevents Premature Birth

Over recent years there has been a host of controversial claims about fish oil, calcium and glucosamine. The questions are do these supplements do any good and do they all have to be taken? Some doctors say take them and other GPs say claims about them are nonsense.

Some tests have been done. It has still not been proven that taking calcium prevents deterioration of bones in old age. And there is no proof that glucosamine gets into joints thus reducing pain. Tests on fish oil offer some hope of benefit.

During research into omega 3 (which is in fish oil) on young children a potential benefit came to light. It seems that premature birth is delayed when fish oil is taken. Omega 3 prolongs pregnancy. Subjects who took the supplement also had larger babies. Their birth date was later than predicted. Of course, this brings up another question: Are heavier babies healthier? As the cause of premature birth is unknown perhaps this benefit overrides the perceived consequences of larger babies.
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Health
Australian Blog                        
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Corneal Transplants Under Scrutiny

Corneal transplants (grafts) are assumed to be very successful, but until now the procedure has not been fully examined. A survey of nearly five thousand patients, 4499 to be precise, was done. After a year 92 per cent of transplants were deemed to be successful. An astonishing 1,395 patients had failed results after seven years.

Plain rejection was the major detrimental cause in a third of failed operations. Infection impacted on 18 per cent, with glaucoma affecting 9 per cent. A worrying point is that 10 per cent of recipients did not have any improvement in vision and only a fifth of these experienced rejection. Indeed, some had poorer vision.

It seems too much time is spent on lessening rejection and not enough time is targeted at improving overall patient outcomes. Having to do the operation again is a real tragedy for a patient. He/she would not be in a positive frame of mind after a failure the first time.
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Health
TwitThis
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Animal To Human Transplants Allowed in Australia

An old joke: Do you want a new heart? Then get one from a gorilla - "grunt!"

This is not a joke any longer. Australia has just given the go ahead for animal-to-human transplants. This is a turn around from the outright banning of such transplants in 2004. There are two conditions: one, a monitoring system must be in place: and two, there must be a patient register. New Zealand allowed transplants in 2005. The first "transplant" involved implanting insulin producing pig cells into volunteer diabetics.

This change has happened when direct research on animals such as chimpanzees is being reduced because tests can more effectively be done in a test tube. Results in many instances are quite different for chimpanzees, for example. This was discovered in AIDs research when chimpanzees didn't get AIDs. They became carriers of the disease. Animals are proving more useful when material at a cellular level is transplanted. Using animals as hosts is far more beneficial than just infecting them and seeing what happens. Soon, infusion of material to patients suffering from Parkinson's disease will begin.

The medical world is hoping that research done in Australia will be of a high standard and will add to knowledge about new medical techniques. Great care is needed in housing animals such as pigs in sterile environments. It is hoped that improved transplant success from animals will reduce the waiting lists for organ transplants.
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Science
TwitThis
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