Gdje sam? Skip Navigation Links Vijesti i arhiva

Novosti News

2.1.2012. 18:56
Izraelski znanstvenici i matične stanice
 

Israeli researchers use stem cells to repair damaged tissue for first time

      

Mice who suffered from insufficient blood flow regained almost full muscle function; researchers say method may be usable to repair human tissue, organs in future.


By Dan EvenTags: Israel healthHaifa    

     

Izraelski znanstvenici su  prvi puta upotrebili matične stanice kako bi obnovili oštećeno tkivo


Miševi koji su "patili" od nedostka krvnog protoka su obnovili gotovo potpuno mišićnu funkciju-

istraživači su izjavili da će se metoda moći upotrebiti u budućnosti za obnovu humanih organa i tkiva


Israeli researchers have managed for the first time to repair damaged tissue using components produced by embryonic stem cells.

The experiment involved tissue regeneration in mice, but the researchers said the method might be usable in the future to repair human tissue and organs that were damaged due to insufficient blood supply. Insufficient blood flow can result from injury or disease and can cause damage to the limbs, heart, kidneys and brain. 



 The researchers were from Rambam Medical Center in Haifa and the Technion's medical school. The team was headed by the director of Rambam's obstetrics and gynecology department, Dr. Joseph Itzkowitz-Eldor.



The stem cell components used by the researchers play a key role in the growth of blood vessels. The team used fertilized human eggs that had been donated for research purposes, as well as skin and hair samples from older adult patients.



For the first time, the team succeeded in isolating the cells that are capable of repairing damaged tissue. The cells were from the outer layer of the capillaries. These cells, along with other cells in the interior of the capillaries, regulate the functioning of the blood vessels and play a key role in the generation of new blood vessels. They provide a kind of building block for the growth of cartilage, tendons and muscle.



The research team injected the cells with the regenerative properties into mice whose legs had been tied to restrict blood flow, causing damage. After the injection of the cells, the mice's legs healed nearly completely. Within three weeks, both blood flow to the leg and muscle function were almost completely normal again.



"In the current research, we have already managed in the laboratory to substantially increase the number of healing cells, so they can serve as a future clinical model for research into diseases," Itzkowitz-Eldor said. He noted that technology already exists that enables the duplication of various kinds of stem cells, and his team's research is similar to current efforts to duplicate blood cells from the umbilical cord.



The development of methods to duplicate the cells with the healing properties could lead to the creation of a bank of components with a wide range of medical applications, he added.



"The development of an unlimited quantity of the cells would hold wide potential for healing damaged tissue," Itzkowitz-Eldor said. "It's true that the research is currently focused on animals, but we already have methods to grow these cells so they would also be suitable later on for implantation into humans."

The team's findings were published in the November issue of "Circulation," the journal of the American Heart Association. The journal also devoted an editorial to the findings, due to their medical significance. Itzkowitz-Eldor said his team's research is additional evidence of the leading role Israel is playing in embryonic stem cell research.

  

 

Arhiva vijesti

 Siječanj (January) 2012
Holocaust survivors thanks to Claims conference
Rebecin Chana Weinberg
Švedska je postala centar Anti-semitizma?
Izraelsko-Evropske veze- summit u Pragu
Svečano otvorena "Šoa Akademija"
prekrasni izbor židovske muzike
Novi predsjednik Evropskog parlamenta
Jevrejski pregled , Januar 2012
Otvorenje Šoa akademije
Počinje "Godina Raoula Wallenberga" u Mađarskoj
Nova izložba u Yad Vashemu
Lauder" Business School" u Beču
Komemoracija talijanskih Židova ubijenih u Holokaustu
Vratili smo se iz Opatije
obilježavanja međunarodnog dana sjećanja na Holokaust u Evropskom parlamentu
Holokaustr preživjeli u bivšem SSSR-u
program Izraelske ambasade
seminar o antisemitizmu u Engleskoj za članove parlamenta
Židovska zajednica u Mađarskoj
Most-Biklten Udruženja useljenika iz bivše Jugoslavije u Izrael
demonstracije protiv položaja žena u ortodoksnoj zajednici
internacionalni dan sjećanja na Holokaust 2012
Žalosni ponedjeljak
Nizozemska isprika za Holokaust
reakcija na demonstracije Haredi zajednice u Izraelu
iz Claims conference
Novi istraživački centar u Yad vashemu
Predrag Matvejević: Razgovori s Krležom
Klub seniora
Cionističke organizacije USA traže ostavku US ambasadora GUTMANA
Izraelski znanstvenici i matične stanice
Uzbuna zbog mješovitih brakova
Švicarska i holokaust
Haredi demonstranti upotrebili Holokaust simbole