Re: Truthfully... can a brain transplant be possible and what kind of research

In theory ...yes .... But in theory ...you can transplant everything ...
The big problem is that your body will recognise alien (i.e. not yours) 
tissue and will destroy this. We have some tricks for that problem ... such 
as looking for an identical (or almost identical) donor ...--> twins 
(brother/sister) or relatives. We can also use drugs to suppress the immune 
system ...so that the new tissue will not be rejected.. there is only one 
problem: You have to take these drugs for the rest of your life ... and, 
the biggest problem ...the immune system is suppressed so the patient is 
susceptible for any kind of disease. 
Concerning the brain... this is a little bit difficult. The brain is not in 
immediate contact with the immune system ... so it is possible to bring 
alien objects/tissue in the brain. But if you look at the brain as a system 
which only tolerate active integrated cells .. then there is a big chance 
that the brain will reject or degrade the implanted cells.
So far, no one has ever successfully transplanted mature brain tissue 
...but there are reports concerning transplantation's of fetal brain cells 
in to a adult brain which are a bit successfull ..cell survival rate of 
about 20%.

(note: The brain is a pile of cells (billions of cells) which are all 
connected to each other ..if you want to transplant some tissue to a new 
brain ..and want to make it work ..you'll probably have to reastablish all 
the connections ... and that is almost impossible especially in adult 
tissue)

I hope I've answered your question
Greetings 
David  
Amsterdam