Table 2.

Quantification of cell populations in the SVF and their repartition among CD45- and CD45 + populations. n = 6 donors were used in each age category. * p value < 0,05 indicated in bold. Unpaired Wilcoxon test was used to test the significance of ASC and pericytes populations. Unpaired student t-test was used to test the significance of other cell populations.

Cell type	Phenotype		Age category	Mean	SD	p value
Immune cells	CD45+	cell/ml	Young	63 550	23 890	0,262
			Old	47 120	23 939
		% (of all cells)	Young	58,1%	14%	0,648
			Old	54,5%	13%
Resident & M2 macrophages	CD45 + CD163+	cell/ml	Young	11 725	6 502	0,677
			Old	10 099	6 614
		% (of CD45+)	Young	19,8%	10%	0,643
			Old	22,2%	8%
Other immune cells	CD45 + CD163-	cell/ml	Young	50 790	21 744	0,235
			Old	35 922	18 950
		% (of CD45+)	Young	78,4%	10%	0,613
			Old	75,6%	8%
Non-immune cells	CD45-	cell/ml	Young	43 165	16 393	0,714
			Old	38 827	22 869
		% (of CD45-)	Young	41,5%	14%	0,704
			Old	44,5%	13%
ASC	CD45- CD31- CD34+	cell/ml	Young	22 815	10 455	0,818
			Old	30 001	18 495
		% (of CD45-)	Young	52,5%	18%	0,009*
			Old	77,5%	13%
Endothelial cells	CD45- CD31 +  CD34+	cell/ml	Young	8 847	4 375	0,014*
			Old	2 782	2 374
		% (of CD45-)	Young	23,5%	16%	0,054
			Old	7,2%	5%
Pericytes	CD45- CD31- CD34- CD146+	cell/ml	Young	4 439	2 242	0,240
			Old	2 763	3 481
		% (of CD45-)	Young	9,9%	4%	0,132
			Old	7,6%	13%