Asthma Clinical Trial
— SiPSOfficial title:
The Effects of Oily Fish in Pregnancy on Markers and Manifestations of Allergic Diseases in Infants at Risk of Atopy
The number of infants and children with allergic disease (dermatitis, allergies, asthma) has increased over the last several decades. This may be related to changes in diet. It is now thought that children become sensitised to allergens very early in life maybe even before they are born. Some studies show that a high omega-3 fat intake by mothers decreases risk of sensitisation in their babies. There is a biological mechanism to explain this. Omega-3 fats are found in oily fish like salmon. In the UK pregnant women are recommended to eat oily fish twice per week. However, consumption of oily fish is known to be low in pregnant women in the UK. This study sets out to identify the effects of increasing salmon intake in pregnant women. The hypothesis being investigated is that : increased consumption of oily fish during pregnancy by women at risk of having offspring who will develop atopy will increase their omega-3 fat and antioxidant status and that of their developing baby and will ameliorate the development of atopic markers and manifestations in the infants.
Status | Completed |
Enrollment | 124 |
Est. completion date | March 2012 |
Est. primary completion date | August 2009 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 40 Years |
Eligibility |
Inclusion Criteria: 1. Pregnant women before 19 weeks gestation, with healthy uncomplicated singleton pregnancies, but whose babies are at risk of atopy (i.e. one or more first degree relatives affected). 2. Not habitual consumers of oily fish (< 2 portions of oily fish per month excluding tinned tuna). 3. Not using fish oil supplements (currently or in the last 3 months) 4. Age 18-40 y. Exclusion Criteria: 1. Habitual consumer of oily fish (> 2 portions of oily fish per month excluding tinned tuna). 2. Use of fish oil supplements within the previous 3 months. 3. Not willing for essential identifiable information being stored for tracking purposes. 4. Participation in another research study. 5. Known diabetic and/or other auto-immune disease, e.g. SLE, MS, Thyroid Disease. 6. Adults with learning disabilities. 7. Adults who have a terminal illness. 8. Adults with mental health problems. |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Investigator), Primary Purpose: Basic Science
Country | Name | City | State |
---|---|---|---|
United Kingdom | University of Southampton | Southampton |
Lead Sponsor | Collaborator |
---|---|
University Hospital Southampton NHS Foundation Trust. | University of Southampton |
United Kingdom,
García-Rodríguez CE, Helmersson-Karlqvist J, Mesa MD, Miles EA, Noakes PS, Vlachava M, Kremmyda LS, Diaper ND, Godfrey KM, Calder PC, Gil A, Basu S. Does increased intake of salmon increase markers of oxidative stress in pregnant women? The salmon in pregnancy study. Antioxid Redox Signal. 2011 Dec 1;15(11):2819-23. doi: 10.1089/ars.2011.4108. Epub 2011 Jul 22. — View Citation
García-Rodríguez CE, Mesa MD, Olza J, Vlachava M, Kremmyda LS, Diaper ND, Noakes PS, Miles EA, Ramírez-Tortosa MC, Liaset B, Frøyland L, Rossary A, Farges MC, Vasson MP, Aguilera CM, Helmersson-Karlqvist J, Godfrey KM, Calder PC, Basu S, Gil A. Does consumption of two portions of salmon per week enhance the antioxidant defense system in pregnant women? Antioxid Redox Signal. 2012 Jun 15;16(12):1401-6. doi: 10.1089/ars.2012.4508. Epub 2012 Feb 21. — View Citation
García-Rodríguez CE, Olza J, Aguilera CM, Mesa MD, Miles EA, Noakes PS, Vlachava M, Kremmyda LS, Diaper ND, Godfrey KM, Calder PC, Gil A. Plasma inflammatory and vascular homeostasis biomarkers increase during human pregnancy but are not affected by oily fish intake. J Nutr. 2012 Jul;142(7):1191-6. doi: 10.3945/jn.112.158139. Epub 2012 May 23. — View Citation
Helmersson-Karlqvist J, Miles EA, Vlachava M, Kremmyda LS, Noakes PS, Diaper ND, Godfrey KM, Calder PC, Basu S. Enhanced prostaglandin F2a formation in human pregnancy and the effect of increased oily fish intake: results from the Salmon in Pregnancy Study. Prostaglandins Leukot Essent Fatty Acids. 2012 Jan-Feb;86(1-2):35-8. doi: 10.1016/j.plefa.2011.10.008. Epub 2011 Nov 1. — View Citation
Miles EA, Noakes PS, Kremmyda LS, Vlachava M, Diaper ND, Rosenlund G, Urwin H, Yaqoob P, Rossary A, Farges MC, Vasson MP, Liaset B, Frøyland L, Helmersson J, Basu S, Garcia E, Olza J, Mesa MD, Aguilera CM, Gil A, Robinson SM, Inskip HM, Godfrey KM, Calder PC. The Salmon in Pregnancy Study: study design, subject characteristics, maternal fish and marine n-3 fatty acid intake, and marine n-3 fatty acid status in maternal and umbilical cord blood. Am J Clin Nutr. 2011 Dec;94(6 Suppl):1986S-1992S. doi: 10.3945/ajcn.110.001636. Epub 2011 Aug 17. — View Citation
Noakes PS, Vlachava M, Kremmyda LS, Diaper ND, Miles EA, Erlewyn-Lajeunesse M, Williams AP, Godfrey KM, Calder PC. Increased intake of oily fish in pregnancy: effects on neonatal immune responses and on clinical outcomes in infants at 6 mo. Am J Clin Nutr. 2012 Feb;95(2):395-404. doi: 10.3945/ajcn.111.022954. Epub 2012 Jan 4. — View Citation
Rossary A, Farges MC, Lamas B, Miles EA, Noakes PS, Kremmyda LS, Vlachava M, Diaper ND, Robinson SM, Godfrey KM, Calder PC, Vasson MP. Increased consumption of salmon during pregnancy partly prevents the decline of some plasma essential amino acid concentrations in pregnant women. Clin Nutr. 2014 Apr;33(2):267-73. doi: 10.1016/j.clnu.2013.04.013. Epub 2013 May 1. — View Citation
Urwin HJ, Miles EA, Noakes PS, Kremmyda LS, Vlachava M, Diaper ND, Godfrey KM, Calder PC, Vulevic J, Yaqoob P. Effect of salmon consumption during pregnancy on maternal and infant faecal microbiota, secretory IgA and calprotectin. Br J Nutr. 2014 Mar 14;111(5):773-84. doi: 10.1017/S0007114513003097. Epub 2013 Oct 16. — View Citation
Urwin HJ, Miles EA, Noakes PS, Kremmyda LS, Vlachava M, Diaper ND, Pérez-Cano FJ, Godfrey KM, Calder PC, Yaqoob P. Salmon consumption during pregnancy alters fatty acid composition and secretory IgA concentration in human breast milk. J Nutr. 2012 Aug;142(8):1603-10. doi: 10.3945/jn.112.160804. Epub 2012 Jun 27. — View Citation
van den Elsen LW, Noakes PS, van der Maarel MA, Kremmyda LS, Vlachava M, Diaper ND, Miles EA, Eussen SR, Garssen J, Willemsen LE, Wilson SJ, Godfrey KM, Calder PC. Salmon consumption by pregnant women reduces ex vivo umbilical cord endothelial cell activation. Am J Clin Nutr. 2011 Dec;94(6):1418-25. doi: 10.3945/ajcn.111.016592. Epub 2011 Oct 19. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Omega-3 fatty acid status in maternal and umbilical cord plasma | Weeks 20, 34 and 38 of pregnancy and at birth (in cord) | No | |
Secondary | Antioxidant status in maternal and umbilical cord blood | Weeks 20, 34 and 38 of pregnancy and at birth (in cord) | No | |
Secondary | Allergic sensitisation of infants | 6 months of age | No |
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