期刊
BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY
卷 120, 期 10, 页码 1192-1199出版社
WILEY
DOI: 10.1111/1471-0528.12288
关键词
Haptoglobin phenotype; pre-eclampsia; pregnancy; type-1 diabetes; vitamin C; vitamin E
资金
- Wellcome Trust [067028/Z/02/Z, 083145/Z/07/Z]
- NIH [P01 HD030367]
- Canadian Institute of Health Research
- Amy Roberts Health Promotion Research Award
- Office of Women's Health Research [K12HD065987]
- Economic and Social Research Council [ES/G007438/1] Funding Source: researchfish
- Medical Research Council [MR/K023241/1] Funding Source: researchfish
- ESRC [ES/G007438/1] Funding Source: UKRI
- MRC [MR/K023241/1] Funding Source: UKRI
- Wellcome Trust [083145/Z/07/Z] Funding Source: Wellcome Trust
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 0.301.16) 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 preeclampsia 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 preeclampsia risk in women with type-1 diabetes.
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