ArticlePhysiological genomics2023
Altered placental ion channel gene expression in preeclamptic high-altitude pregnancies.
Article in Physiological genomics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Utero-placental calcium and magnesium ion channels: A systematic review of obstetric implications of their alterations.Channels (Austin, Tex.) · 2026Pooled it
- Understanding pre-eclampsia and fetal growth restriction at high altitude: A narrative review.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Review
- Chronic in utero oxycodone exposure alters placental small EV proteome and fetal cardiomyopathy-linked pathways.Extracellular vesicles and circulating nucleic acids · 2026Article
- DNA methylation in adaptation to high-altitude environments and pathogenesis of related diseases.Human genomics · 2025Review
- Surviving birth at high altitude.The Journal of physiology · 2024Review
- Expression and influence of KATP in umbilical artery smooth muscle cells of patients with hypertensive disorders of pregnancy.Scientific reports · 2024Article
Corrections and comments
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Authors and funding
12 authors at 2 institutions in 2 countries.
Funding
Abstract
High-altitude (>2,500 m) residence increases the risk of pregnancy vascular disorders such as fetal growth restriction and preeclampsia, each characterized by impaired placental function. Genetic attributes of highland ancestry confer relative protection against vascular disorders of pregnancy at high altitudes. Although ion channels have been implicated in placental function regulation, neither their expression in high-altitude placentas nor their relationship to high-altitude preeclampsia has been determined. Here, we measured the expression of 26 ion-channel genes in placentas from preeclampsia cases and normotensive controls in La Paz, Bolivia (3,850 m). In addition, we correlated gene transcription to maternal and infant ancestry proportions. Gene expression was assessed by PCR, genetic ancestry evaluated by
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Registered trials
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.