ArticleToxicology letters2022
Toxicity of high-molecular-weight polyethylene glycols in Sprague Dawley rats.
Article in Toxicology letters, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
8 citing papers in PubMed, 20 citations in OpenAlex.
- Microphysiological modeling of the Blood-CSF barrier for biopharmaceutical transport and sequestration: evaluation of PEG-induced accumulation and vacuolation in the choroid plexus epithelium.Frontiers in pharmacology · 2026Article
- Immunogenicity Management Strategies for PEGylated Drug Delivery Systems.International journal of nanomedicine · 2026Review
- Detection of PEG-specific antibodies in SARS-CoV-2 positive and negative sera with implications for autoimmune reactivity.Scientific reports · 2025Article
- Catalyst Selection for Body-Temperature Curable Polyurethane Networks from Poly(δ-Decalactone) and Lysine Diisocyanate.Polymers · 2025Article
- The Art of PEGylation: From Simple Polymer to Sophisticated Drug Delivery System.International journal of molecular sciences · 2025Review
- Insights into the Chemical Exposome during Pregnancy: A Non-Targeted Analysis of Preterm and Term Births.Environmental science & technology · 2024Article
- Striving for Uniformity: A Review on Advances and Challenges To Achieve Uniform Polyethylene Glycol.Organic process research & development · 2024Review
- Polyethylene Glycols Stimulate CaInternational journal of nanomedicine · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
Polyethylene glycol (PEG) is present in a variety of products. Little is known regarding the accumulation of high-molecular-weight PEGs or the long-term effects resulting from PEG accumulation in certain tissues, especially the choroid plexus. We evaluated the toxicity of high-molecular-weight PEGs administered to Sprague Dawley rats. Groups of 12 rats per sex were administered subcutaneous injections of 20, 40, or 60 kDa PEG or intravenous injections of 60 kDa PEG at 100 mg PEG/kg body weight/injection once a week for 24 weeks. A significant decrease in triglycerides occurred in the 60 kDa PEG groups. PEG treatment led to a molecular-weight-related increase in PEG in plasma and a low level of PEG in cerebrospinal fluid. PEG was excreted in urine and feces, with a molecular-weight-related decrease in the urinary excretion. A higher prevalence of anti-PEG IgM was observed in PEG groups; anti-PEG IgG was not detected. PEG treatment produced a molecular-weight-related increase in vacuolation in the spleen, lymph nodes, lungs, and ovaries/testes, without an inflammatory response. Mast cell infiltration at the application site was noted in all PEG-treated groups. These data indicate that subcutaneous and intravenous exposure to high-molecular-weight PEGs produces anti-PEG IgM antibody responses and tissue vacuolation without inflammation.
Indexed as
Identifiers
What OpenQuestion holds
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.