Iran to test artificial windpipe on humans

Subject:	Iran to test artificial windpipe on humans
Date:	02 Jan 2010 20:04:28 GMT

Iran to test artificial windpipe on humans
Sat, 02 Jan 2010 18:34:22 GMT

Iranian scientists announce that the first artificial
windpipe will be ready to be transplanted on a human in the
coming month.

The head of Masih Daneshvari Hospital, Ali Akbar Velayati
told Fars News Agency that Iranians are the first in the
world to have succeeded in developing a whole artificial
windpipe (trachea), adding that the organ already developed
in Spain is a bronchiole rather than a trachea.

"While tracheal transplantation is routinely performed in
our center, finding an accurate trachea which matches the
receivers' condition is rather difficult. These patients,
moreover, are forced to use different types of medication
for all their lives, aiming to prevent possible rejections,"
stressed Ali Akbar Velayati.

Velayati said this artificial trachea is mainly designed to
save the life of individuals who do not respond to existing
treatments and surgeries. Apart from patients with various
respiratory diseases, chemically wounded veterans may also
benefit from such tracheas.

Velayati added that the patient's own stem cells are used in
this innovative trachea, a trick which has overcome many of
the problems caused by existing techniques.

In this innovative technique, Jallaleldin Qanavi and his
colleagues used specific polymers to produce structures
similar to tracheal cartilages.

In order to produce the cells, stem cells were extracted
from the patient and then cultured on this cell-free
structure. According to Qanavi, these stem cells were
cultured in the patients own abdomen for some six months
before being transplanted on the damaged trachea.

PKH/HGH
Related Stories:
Stem cells used for windpipe transplant
Iran produces first artificial windpipe

http://www.presstv.ir/detail.aspx?id=115204§ionid=3510210
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