Figure 2.
Plasma and liver retinol and β-carotene concentrations. Plasma retinol concentrations were similar in all groups (a), liver retinol concentration decreased significantly in VAD group (b), liver βc isomer concentrations were significantly higher in VAD-BC group compared to BC group (c), and serum all-trans RA concentrations were similar in all groups (d). Retinol, βc, and RA were analyzed following 15 weeks of treatments (Exp. 1). Values are means ± SE, n = 5–8. a, bWithin each graph, means without a common letter differ, P < 0.05. Dunaliella treated group (BC); vitamin A-deficient diet group (VAD); vitamin A-deficient diet fortified with Dunaliella group (VAD-BC); retinoic acid (RA).