The number of donor-derived cardiomyocytes after transplantation of purified BM cells.

aP = 0.0095 by Mann-Whitney U test, Lin−/lowCD45+ versus Lin−/lowCD45−.bP = 0.0021 by Mann-Whitney U test, Myeloid progenitor versus CLP.cP = 0.0004 by Mann-Whitney U test, CMP versus CLP.dP = 0.1142 by Mann-Whitney U test, Myeloid progenitor versus CLP.*GFP+ cardiomyocytes were counted in 40 contiguous sections from apex of the heart per a mouse. Detailed information of histological analysis is described in Materials and Methods, Materials and Methods S1.Abbreviations. BM: bone marrow, PB: peripheral blood, HSC: hematopoietic stem cell, LSK: Lin−Sca-1+c-Kit+, CMP: common myeloid progenitor, GMP: granulocyte/monocyte progenitor, CLP: common lymphoid progenitor.