found women's menstrual blood can be used to repair heart damage,
according to a study released in the latest Stem Cells online.
Scientists gathered the precursor cells, called mesenchymal
cells (MMCs) from menstrual blood donated by nine women volunteers
and cultivated it for about a month.
After being put
together in a culture with cells from the hearts of rats, about 20
percent of the cells began beating spontaneously and eventually
formed sheets of heart muscle tissue.
The success rate is
100 times higher than the 0.2-0.3 percent for stem cells taken from
human bone marrow, according to Shunichiro Miyoshi, a cardiologist
at Keio University's school of medicine, who is involved in the
Another set of experiments showed that live rats
that had suffered heart attacks improved after being implanted with
the MMCs. The researchers saw that the implanted MMCs gave rise to
cardiomyocytes in the rats' hearts and decreased the myocardial
infarction (MI) area.
"There may be a system in the near
future that allows women to use it for their own treatment," Miyoshi
told media that women may eventually be able to use their own
Anyway, it is a new and more abundant
sources for use in regenerative medicine which have been identified
as a potentially unlimited, noncontroversial, easily collectable,
and inexpensive source.