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Haptoglobin phenotype, pre-eclampsia, and response to supplementation with vitamins C and E in pregnant women with type-1 diabetes.

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  • Author(s): Weissgerber TL;Weissgerber TL; Gandley RE; Roberts JM; Patterson CC; Holmes VA; Young IS; McCance DR
  • Source:
    BJOG : an international journal of obstetrics and gynaecology [BJOG] 2013 Sep; Vol. 120 (10), pp. 1192-9. Date of Electronic Publication: 2013 May 30.
  • Publication Type:
    Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • Language:
  • Additional Information
    • Corporate Authors:
    • Source:
      Publisher: Wiley-Blackwell Country of Publication: England NLM ID: 100935741 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1471-0528 (Electronic) Linking ISSN: 14700328 NLM ISO Abbreviation: BJOG Subsets: MEDLINE
    • Publication Information:
      Publication: : Oxford : Wiley-Blackwell
      Original Publication: Oxford [England] : Blackwell Science, [2000]-
    • Subject Terms:
    • Abstract:
      Objective: The phenotype of the antioxidant and pro-angiogenic protein haptoglobin (Hp) predicts cardiovascular disease risk and treatment response to antioxidant vitamins in individuals with diabetes. Our objective was to determine whether Hp phenotype influences pre-eclampsia risk, or the efficacy of vitamins C and E in preventing pre-eclampsia, in women with type-1 diabetes.
      Design: This is a secondary analysis of a randomised controlled trial in which women with diabetes received daily vitamins C and E, or placebo, from 8 to 22 weeks of gestation until delivery.
      Setting: Twenty-five antenatal metabolic clinics across the UK (in north-west England, Scotland, and Northern Ireland).
      Population: Pregnant women with type-1 diabetes.
      Methods: Hp phenotype was determined in white women who completed the study and had plasma samples available (n = 685).
      Main Outcome Measure: Pre-eclampsia.
      Results: Compared with Hp 2-1, Hp 1-1 (OR 0.59, 95% CI 0.30-1.16) and Hp 2-2 (OR 0.93, 95% CI 0.60-1.45) were not associated with significantly decreased pre-eclampsia risk after adjusting for treatment group and HbA1c at randomisation. Our study was not powered to detect an interaction between Hp phenotype and treatment response; however, our preliminary analysis suggests that vitamins C and E did not prevent pre-eclampsia in women of any Hp phenotype (Hp 1-1, OR 0.77, 95% CI 0.22-2.71; Hp 2-1, OR 0.81, 95% CI 0.46-1.43; Hp 2-2, 0.67, 95% CI 0.34-1.33), after adjusting for HbA1c at randomisation.
      Conclusions: The Hp phenotype did not significantly affect pre-eclampsia risk in women with type-1 diabetes.
      (© 2013 RCOG.)
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    • Grant Information:
      P01 HD030367 United States HD NICHD NIH HHS; MR/K023241/1 United Kingdom MRC_ Medical Research Council; 083145/Z/07/Z United Kingdom WT_ Wellcome Trust; K12 HD065987 United States HD NICHD NIH HHS; Canada CAPMC CIHR; 067028/Z/02/Z United Kingdom WT_ Wellcome Trust; United Kingdom WT_ Wellcome Trust; K12HD065987 United States HD NICHD NIH HHS
    • Contributed Indexing:
      Investigator: MJ Maresh; D Pearson; J Walker
      Keywords: Haptoglobin phenotype; pre-eclampsia; pregnancy; type-1 diabetes; vitamin C; vitamin E
    • Accession Number:
      0 (Antioxidants)
      0 (Haptoglobins)
      1406-18-4 (Vitamin E)
      PQ6CK8PD0R (Ascorbic Acid)
    • Publication Date:
      Date Created: 20130531 Date Completed: 20131114 Latest Revision: 20220129
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