ArticleAnalytical and bioanalytical chemistry2015
High-resolution elemental mapping of human placental chorionic villi using synchrotron X-ray fluorescence spectroscopy.
Article in Analytical and bioanalytical chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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
5 citing papers in PubMed, 9 citations in OpenAlex.
- Synchrotron XRF Imaging Reveals Manganese Accumulation in the Golgi and Post-Synapses of Neurons and Enhanced Uptake in Astrocytes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Article
- Determination of trace elements in placenta by total reflection X-ray fluorescence spectrometry: effects of sampling and sample preparation.Analytical and bioanalytical chemistry · 2022Article
- Multielemental bioimaging of tissues in children's environmental health research.Current opinion in pediatrics · 2016Review
- A multimodal imaging workflow to visualize metal mixtures in the human placenta and explore colocalization with biological response markers.Metallomics : integrated biometal science · 2016Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
The placenta is the organ that mediates transport of nutrients and waste materials between mother and fetus. Synchrotron X-ray fluorescence (SXRF) microanalysis is a tool for imaging the distribution and quantity of elements in biological tissue, which can be used to study metal transport across biological membranes. Our aims were to pilot placental biopsy specimen preparation techniques that could be integrated into an ongoing epidemiology birth cohort study without harming rates of sample acquisition. We studied the effects of fixative (formalin or glutaraldehyde) and storage duration (30 days or immediate processing) on metal distribution and abundance and investigated a thaw-fixation protocol for archived specimens stored at -80 °C. We measured fixative elemental composition with and without a placental biopsy via inductively coupled plasma mass spectrometry (ICP-MS) to quantify fixative-induced elemental changes. Formalin-fixed specimens showed hemolysis of erythrocytes. The glutaraldehyde-paraformaldehyde solution in HEPES buffer (GTA-HEPES) had superior anatomical preservation, avoided hemolysis, and minimized elemental loss, although some cross-linking of exogenous Zn was evident. Elemental loss from tissue stored in fixative for 1 month showed variable losses (≈40 % with GTA-HEPES), suggesting storage duration be controlled for. Thawing of tissue held at -80 °C in a GTA-HEPES solution provided high-quality visual images and elemental images.
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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.