Abstract
Extremely-low-birth-weight (ELBW) infants accrue large deficits in docosahexaenoic acid (DHA) and arachidonic acid (ARA) and require improved supplementation strategies. We hypothesized that once daily DHA+ARA drops applied to buccal mucosa will increase blood levels. Thirty ELBW infants were randomized to receive DHA 20 mg/kg/d + ARA 40 or 60 mg/kg/d + ARA 120 mg/kg/d or placebo within 72 h of age for 8 wk duration. Red blood cell phospholipid levels of DHA (primary) and ARA (secondary) were measured at 2 and 8 wk of age. Twenty-eight survivors with a median birth weight of 806 g completed dosing and sampling. Red blood cell levels were similar between the three groups at 2 wk (DHA: 4.62 wt% (interquartile range (IQR) 4.1-5.5) for all, P = 0.29 between groups; ARA: 21.1 wt% (IQR 18.78-22.6) for all, P = 0.41 between groups) and 8 wk (DHA: 6.0 wt% (IQR 5.1-7.1) for all, P = 0.57 between groups; ARA: 20.1 wt% (IQR 18.3-23.1) for all, P = 0.63 between groups). DHA in all infants showed a median increase of 31% from 2 to 8 wk (P < 0.04). ARA levels did not significantly change over time (P > 0.6). Daily buccal DHA and ARA supplements did not affect fatty acid levels in ELBW infants.
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