If we are going to have a blood supply for any new neurons created via neurogenesis then we also new blood vessels to supply them with nutrients. What is your doctor doing to ensure that any neurons newly created will survive and become useful? Does your doctor have ANY stroke protocols for stroke rehabilitation? This is something worth screaming over. If you don't question your doctor on this you're losing your chance to pay it forward to all the following stroke survivors.
http://www.alphagalileo.org/ViewItem.aspx?ItemId=146569&CultureCode=en
The technology for creating new tissues from stem cells has taken a
giant leap forward. Three tablespoons of blood are all that is needed to
grow a brand new blood vessel in just seven days. This is shown in a
new study from Sahlgrenska Acadedmy and Sahlgrenska University Hospital
published in EBioMedicine.
Just three years ago, a patient at Sahlgrenska University Hospital
received a blood vessel transplant grown from her own stem cells.
Suchitra Sumitran-Holgersson, Professor of Transplantation Biology at
Sahlgrenska Academy, and Michael Olausson, Surgeon/Medical Director of
the Transplant Center and Professor at Sahlgrenska Academy, came up with
the idea, planned and carried out the procedure.
Missing a veinProfessors Sumitran-Holgersson and
Olausson have published a new study in EBioMedicine based on two other
transplants that were performed in 2012 at Sahlgrenska University
Hospital. The patients, two young children, had the same condition as in
the first case – they were missing the vein that goes from the
gastrointestinal tract to the liver.
"Once again we used the stem cells of the patients to grow a new
blood vessel that would permit the two organs to collaborate properly,"
Professor Olausson says.
Stroke of genius
This time, however, Professor
Sumitran-Holgersson, found a way to extract stem cells that did not
necessitate taking them from the bone marrow.
"Drilling in the bone marrow is very painful," she says. "It occurred
to me that there must be a way to obtain the cells from the blood
instead."
The fact that the patients were so young fueled her passion to look
for a new approach. The method involved taking 25 milliliter
(approximately 2 tablespoons) of blood, the minimum quantity needed to
obtain enough stem cells.
Blood willingly cooperates
Professor
Sumitran-Holgersson's idea turned out to surpass her wildest
expectations – the extraction procedure worked perfectly the very first
time.
"Not only that, but the blood itself accelerated growth of the new
vein," Professor Sumitran-Holgersson says. “The entire process took only
a week, as opposed to a month in the first case. The blood contains
substances that naturally promote growth."
More groups of patients can benefit
Professors Olausson
and Sumitran-Holgersson have treated three patients so far. Two of the
three patients are still doing well and have veins that are functioning
as they should. In the third case the child is under medical
surveillance and the outcome is more uncertain.
They researchers have now reached the point that they can avoid
taking painful blood marrow samples and complete the entire process in
the matter of a week.
"We believe that this technological progress can lead to
dissemination of the method for the benefit of additional groups of
patients, such as those with varicose veins or myocardial infarction,
who need new blood vessels," Professor Holgersson says. “Our dream is to
be able to grow complete organs as a way of overcoming the current
shortage from donors.”
http://www.sahlgrenska.gu.se/english/news_and_events/news/News_Detail/?languageId=100001&contentId=1242371&disableRedirect=true&returnUrl=http%3A%2F%2Fwww.sahlgrenska.gu.se%2Faktuellt%2Fnyheter%2FNyheter%2BDetalj%2F%2Fskapar-ett-helt-nytt-blodkarl-pa-bara-en-vecka.cid1242371
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