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Role for microRNAs in limb regeneration

Research reveals that microRNA depletion is necessary for tissue regeneration and that manipulating certain microRNA levels can enhance regenerative success in zebrafish. By tweaking the FGF signaling pathway, scientists were able to increase or decrease specific microRNA levels, resulting in improved or inhibited fin regeneration.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 14, 2008

Healing the heart with bone marrow cells

Researchers at the University of Toronto have discovered bone marrow adult stem cells play a crucial role in repairing damaged hearts. The 'SOS' distress signal mobilizes these cells to stimulate new blood vessel growth and restore heart function.

SourceUniversity of Toronto·JournalJournal of Clinical Investigation·DateJul 3, 2006