9-cis β-carotene enriched diet inhibited foam cell formation <i>in-vivo.</i>

<p>Cholesterol content in the cells was measured after Folch extraction and colorimetric reaction. Values are means ±SE, n = 5. * <i>P</i><0.05 as measured by student t-test (A). One representative picture of Oil Red O staining of macrophages isolated from one mouse in each group (B). Lipid droplets colored in red.