Paramagnetic Manganese in the Atherosclerotic Plaque of Carotid Arteries

Table 1

Patients information, the results of microscopy for determination of calcium depositions (mm²), frequency of anti-inflammatory cells in unstable and stable plaques (cells/0.25 mm²), and EPR transverse electronic relaxation times (µs) for stable and unstable AP (mean ± SEM). The number of specimens is denoted as .

Plaque feature	Stable	Unstable	value
Patient information
Average age	57.3 ± 6.9	56.6 ± 6.0
Smokers	4	14
Calcium deposition square
	0.647 ± 0.637	0.611 ± 0.526	0.26; Mann–Whitney U test
			0.82; Wald-Wolfowitz runs test
Frequency of anti-inflammatory cells
CD68^+ cells in fibrous cap	42 ± 4.5	51.28 ± 12.5	>0.05
CD68^+ cells in shoulder	44.5 ± 18.37	31.46 ± 17.7	>0.05
CD31^+ cells in fibrous cap	14.2 ± 4.15	46.8 ± 9.8	<0.01
CD31^+ cells in shoulder	12.2 ± 3.37	45.7 ± 15.5	<0.05
vWF^+ cells in fibrous cap	24.5 ± 3.1	43.7 ± 7.2	<0.05
vWF^+ cells in shoulder	18.25 ± 3.3	27.86 ± 11.31	>0.05
EPR relaxation data for  K
	0.52 ± 0.15	0.54 ± 0.12	<0.01
	3.91 ± 0.54	1.25 ± 0.27	>0.05