Trial reportBMC pregnancy and childbirth2024
Effects of calcium supplementation on changes in the IL2, IL4, IL6, IL10 axes and oxidative stress in pregnant women at risk for pre-eclampsia.
Trial report in BMC pregnancy and childbirth, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Oxidative Stress in Pathogenesis of Preeclampsia: Mechanistic and Clinical Insights.Antioxidants (Basel, Switzerland) · 2026Review
- Domestic water hardness, genetic susceptibility, and risk of symptomatic abdominal aortic aneurysm: a cohort study of UK biobank.BMC cardiovascular disorders · 2026Article
- Nutrition and Endometriosis: Current Evidence on Dietary Risk Factors and Clinical Impact - A Narrative Review.Journal of inflammation research · 2026Review
- The role of oxidative stress and antioxidant approaches in preeclampsia: A narrative review.European journal of midwifery · 2026Review
- Dietary supplements and prevention of preeclampsia.Hypertension research : official journal of the Japanese Society of Hypertension · 2025Review
- Intact NOX2 in T Cells Mediates Pregnancy-Induced Renal Damage in Dahl SS Rats.Hypertension (Dallas, Tex. : 1979) · 2024Article
- A Narrative Review of Oxidative Stress and Liver Disease in Pregnancy: The Role of Antioxidants.Cureus · 2024Review
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPregnant women with hypertensive disorders are at increased risk for inflammatory diseases and oxidative stress. The dilemma raised by the best dosage of calcium supplementation on these factors is evident. The aim of the current study was to examine the effects of calcium on biomarkers of the purinergic system, inflammation and oxidative stress, which are factors contributing to vascular damage in pregnant women at high risk of pre-eclampsia.
methodsA prospective, double-blind and placebo-controlled study conducted with 101 women at risk of pre-eclampsia were randomized to take 500 mg calcium/day or 1,500 mg calcium/day or placebo for 6 weeks from the 20th gestational week until delivery. Fasting blood samples were collected at the beginning of the study and 6 weeks after the intervention.
resultsTaking calcium supplements (500 mg calcium/day) led to a significant increase in ATP hydrolysis (p < 0.05), NTPDase activity with increased hydrolysis of ADP and AMP nucleotides in platelets and lymphocytes. In the intragroup analysis IL-2, IL-6, IL-4 and interferon-ɣ presented lower values in the calcium 1,500 mg/day group (p < 0.005). Oxidative stress was assessed by TBARS pro-oxidant marker, with an increase for the calcium groups when compared to the placebo group. The Vitamin C antioxidant marker presented a significant increase (p < 0.005) for the group that received high calcium doses.
conclusionsCalcium administration for 6 weeks had antioxidant action and positively modulated the purinergic system and inflammatory markers in pregnant women at risk of pre-eclampsia.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.