PMID- 15610365 OWN - NLM STAT- MEDLINE DCOM- 20050526 LR - 20080528 IS - 0905-6157 (Print) IS - 0905-6157 (Linking) VI - 15 IP - 6 DP - 2004 Dec TI - Effect of omega-3 fatty acid concentrations in plasma on symptoms of asthma at 18 months of age. PG - 517-22 AB - The objective of this study was to assess the relation between observed levels of omega-3 fatty acids in plasma and symptoms of asthma and atopy in children at 18 months of age. A total of 616 women at risk of having a child who would develop asthma because of a family history were recruited from the antenatal clinics of six hospitals in Sydney, Australia. Families were randomized to either active omega-3 supplemented or control group. The active group received a daily tuna fish oil supplement and omega-3-rich margarines and cooking oils and the control group received a placebo supplement with polyunsaturated margarines and cooking oils. When the children were 18 months of age an assessment of symptoms was carried out by a research nurse blinded to treatment group allocation. Atopy was measured by skin prick tests, blood was collected to determine serum immunoglobulin E (IgE), and plasma fatty acid concentrations. A total of 376 children (61.0% of total recruited) completed an assessment at 18 months and had blood taken to determine plasma fatty acid concentrations. Omega-3 fatty acid levels were expressed in quintiles of exposure 'as treated' without reference to treatment group allocation. Wheeze ever, doctor visits for wheeze, bronchodilator use and nocturnal coughing were significantly reduced in children in the higher exposure quintiles. Serum IgE was reduced in the highest quintile but not significantly so. There was no difference in diagnosed asthma or atopy between the exposure quintiles. Although wheeze at this age may not be a good indicator of asthma in later childhood, it is encouraging that some symptoms have been reduced in children with high omega-3 fatty acid concentrations in plasma. FAU - Mihrshahi, Seema AU - Mihrshahi S AD - Clinical Epidemiology Unit, The Children's Hospital at Westmead, NSW, Australia. seemam@chw.edu.au FAU - Peat, Jennifer K AU - Peat JK FAU - Webb, Karen AU - Webb K FAU - Oddy, Wendy AU - Oddy W FAU - Marks, Guy B AU - Marks GB FAU - Mellis, Craig M AU - Mellis CM CN - CAPS Team LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Pediatr Allergy Immunol JT - Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology JID - 9106718 RN - 0 (Fatty Acids, Omega-3) RN - 0 (Tobacco Smoke Pollution) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Asthma/*blood/complications/*prevention & control MH - Australia MH - Breast Feeding MH - Chi-Square Distribution MH - Dietary Supplements MH - Dose-Response Relationship, Drug MH - Fatty Acids, Omega-3/administration & dosage/*blood MH - Female MH - Humans MH - Immunoglobulin E/blood MH - Infant MH - Male MH - Respiratory Sounds/etiology MH - Sex Factors MH - Skin Tests/methods MH - Tobacco Smoke Pollution/adverse effects MH - Treatment Outcome EDAT- 2004/12/22 09:00 MHDA- 2005/05/27 09:00 CRDT- 2004/12/22 09:00 PHST- 2004/12/22 09:00 [pubmed] PHST- 2005/05/27 09:00 [medline] PHST- 2004/12/22 09:00 [entrez] AID - PAI187 [pii] AID - 10.1111/j.1399-3038.2004.00187.x [doi] PST - ppublish SO - Pediatr Allergy Immunol. 2004 Dec;15(6):517-22. doi: 10.1111/j.1399-3038.2004.00187.x.