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publicado em 13/08/2012 às 16h57:00
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Single population of stem cells give rise to bone cells and fat

Study suggests that forcing stem cells to turn into bone instead of fat can treat obesity and osteoporosis

 
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The fate of people suffering with obesity or osteoporosis could lie in the hands of Deakin University researchers who are looking into the way fat and bone cells develop, with the assistance of the humble zebrafish.

Dan Fraher, a PhD student with Deakin University' s School of Medicine (Metabolic Research Unit), believes that manipulating the growth of fat and bone cells could open up new treatments for these debilitating diseases.

" With the rates of obesity and osteoporosis rising throughout the world there is a need to look at new treatments for people suffering these conditions," he said.

While obesity and osteoporosis are two different diseases, they do have a lot in common, at least at the cellular level.

" Fat cells and bone cells originate from the same stem cell population," Mr Fraher explained.

" My project entails trying to force the fate of the stem cells to become bone cells rather than fat cells. Creating more bone cells could be a treatment option for either disease."

Mr Fraher' s research uses the zebrafish to test two genetic signals involved in the development of fat and bone cells, endocannabinoid and retinoic acid.

" Zebrafish are a great model to work with as they have biological structures, such as bone and fat cells, that are similar to humans," Mr Fraher said.

" Preliminary results in treating the zebrafish with endocannabinoid and retinoic acid have shown that with these chemicals we can increase or decrease their bone and fat content.

" It is early days in the research but these results are a promising sign."

Mr Fraher is now working on understanding how these signals can influence the production of fat and bone cells.

Mr Fraher presented his research project as a finalist in the Deakin University Three Minute Thesis Competition. This competition challenges higher degrees by research students to present a compelling and non-scientific talk on their thesis, in only three minutes.

Source: Isaude.net
   Palavras-chave:   Osteoporosis    Obesity    Zebrafish    Stem cells    Deakin University   
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