Association of Docosahexaenoic Acid and Arachidonic Acid Serum Levels With Retinopathy of Prematurity in Preterm Infants

被引:45
作者
Hellstrom, Ann [1 ]
Pivodic, Aldina [1 ]
Granse, Lotta [2 ,3 ]
Lundgren, Pia [1 ,4 ]
Sjobom, Ulrika [1 ,5 ]
Nilsson, Anders K. [1 ]
Soderling, Helena [1 ]
Hard, Anna-Lena [1 ]
Smith, Lois E. H. [6 ]
Lofqvist, Chatarina Alice [1 ,5 ]
机构
[1] Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol, Dept Clin Neurosci, Vitaminvagen 21, S-41650 Gothenburg, Sweden
[2] Lund Univ, Inst Clin Sci Lund, Dept Ophthalmol, Lund, Sweden
[3] Skane Univ Hosp, Lund, Sweden
[4] Orebro Univ, Fac Med & Hlth, Sch Med Sci, Orebro, Sweden
[5] Univ Gothenburg, Sahlgrenska Acad, Inst Hlth Care Sci, Gothenburg, Sweden
[6] Harvard Med Sch, Boston Childrens Hosp, Dept Ophthalmol, Boston, MA 02115 USA
基金
瑞典研究理事会; 英国医学研究理事会;
关键词
BRONCHOPULMONARY DYSPLASIA; DHA STATUS;
D O I
10.1001/jamanetworkopen.2021.28771
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
IMPORTANCE Supplementing preterm infants with long-chain polyunsaturated fatty acids (LC-PUFA) has been inconsistent in reducing the severity and incidence of retinopathy of prematurity (ROP). Furthermore, few studies have measured the long-term serum lipid levels after supplementation. OBJECTIVE To assess whether ROP severity is associated with serum levels of LC-PUFA, especially docosahexaenoic acid (DHA) and arachidonic acid (AA), during the first 28 postnatal days. DESIGN, SETTING, AND PARTICIPANTS This cohort study analyzed the Mega Donna Mega study, a randomized clinical trial that provided enteral fatty acid supplementation at 3 neonatal intensive care units in Sweden. Infants included in this cohort study were born at a gestational age of less than 28 weeks between December 20, 2016, and August 6, 2019. MAIN OUTCOMES AND MEASURES Severity of ROP was classified as no ROP, mild or moderate ROP (stage 1-2), or severe ROP (stage 3 and type 1). Serum phospholipid fatty acids were measured through gas chromatography-mass spectrometry. Ordinal logistic regression, with a description of unadjusted odds ratio (OR) as well as gestational age- and birth weight-adjusted ORs and 95% CIs, was used. Areas under the curve were used to calculate mean daily levels of fatty acids during postnatal days 1 to 28. Blood samples were obtained at the postnatal ages of 1, 3, 7, 14, and 28 days. RESULTS A total of 175 infants were included in analysis. Of these infants, 99 were boys (56.6%); the median (IQR) gestational age was 25 weeks 5 days (24 weeks 3 days to 26 weeks 6 days), and the median (IQR) birth weight was 785 (650-945) grams. A higher DHA proportion was seen in infants with no ROP compared with those with mild or moderate ROP or severe ROP (OR per 0.5-molar percentage increase, 0.49 [95% CI, 0.36-0.68]; gestational age- and birth weight-adjusted OR, 0.66 [95% CI, 0.46-0.93]). The corresponding adjusted OR for AA levels per 1-molar percentage increase was 0.83 (95% CI, 0.66-1.05). The association between DHA levels and ROP severity appeared only in infants with sufficient AA levels, suggesting that a mean daily minimum level of 7.8 to 8.3 molar percentage of AA was necessary for a detectable association between DHA level and less severe ROP. CONCLUSIONS AND RELEVANCE This cohort study found that higher mean daily serum levels of DHA during the first 28 postnatal days were associated with less severe ROP even after adjustment for known risk factors, but only in infants with sufficiently high AA levels. Further studies are needed to identify LC-PUFA supplementation strategies that may prevent ROP and other morbidities.
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页数:12
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