ArticleToxicological sciences : an official journal of the Society of Toxicology2011
Effect of developmental chlorpyrifos exposure, on endocannabinoid metabolizing enzymes, in the brain of juvenile rats.
Article in Toxicological sciences : an official journal of the Society of Toxicology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.
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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
23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.
- Pooled it
- Pesticide exposure and neurodevelopmental outcomes: review of the epidemiologic and animal studies.Journal of toxicology and environmental health. Part B, Critical reviews · 2013Pooled it
- Chlorpyrifos and Chlorpyrifos-Oxon: A Widening Spectrum of Toxicity.International journal of molecular sciences · 2026Review
- Gestational Chlorpyrifos Exposure Imparts Lasting Alterations to the Rat Somatosensory Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Article
- Cnr1Chemico-biological interactions · 2023Article
- The mechanistic basis for the toxicity difference between juvenile rats and mice following exposure to the agricultural insecticide chlorpyrifos.Toxicology · 2022Article
- Effects of chlorpyrifos on non-cholinergic toxicity endpoints in immortalized and primary rat hepatocytes under normal and hepatosteatotic conditions.Toxicology in vitro : an international journal published in association with BIBRA · 2022Article
- Inhibition of Serum Esterases in Juvenile Rats Repeatedly Exposed to Low Levels of Chlorpyrifos.International journal of scientific research in environmental science and toxicology · 2022Article
- Persistent proteomic changes in glutamatergic and GABAergic signaling in the amygdala of adolescent rats exposed to chlorpyrifos as juveniles.Neurotoxicology · 2021Article
- Effects of Chlorpyrifos on Serine Hydrolase Activities, Lipid Mediators, and Immune Responses in Lungs of Neonatal and Adult Mice.Chemical research in toxicology · 2021Article
- Inhibition of fatty acid amide hydrolase by chlorpyrifos in juvenile rats results in altered exploratory and social behavior as adolescents.Neurotoxicology · 2020Article
- Organophosphate pesticide chlorpyrifos impairs STAT1 signaling to induce dopaminergic neurotoxicity: Implications for mitochondria mediated oxidative stress signaling events.Neurobiology of disease · 2018Article
- Decreased anxiety in juvenile rats following exposure to low levels of chlorpyrifos during development.Neurotoxicology · 2017Article
- Developmental neurotoxicity of succeeding generations of insecticides.Environment international · 2017Review
- Lipopolysaccharide suppresses carboxylesterase 2g activity and 2-arachidonoylglycerol hydrolysis: A possible mechanism to regulate inflammation.Prostaglandins & other lipid mediators · 2015Article
- Low level chlorpyrifos exposure increases anandamide accumulation in juvenile rat brain in the absence of brain cholinesterase inhibition.Neurotoxicology · 2014Article
- Comparative effects of parathion and chlorpyrifos on extracellular endocannabinoid levels in rat hippocampus: influence on cholinergic toxicity.Toxicology and applied pharmacology · 2013Article
- Induction of endocannabinoid levels in juvenile rat brain following developmental chlorpyrifos exposure.Toxicological sciences : an official journal of the Society of Toxicology · 2013Article
- Sex-specific tonic 2-arachidonoylglycerol signaling at inhibitory inputs onto dopamine neurons of Lister Hooded rats.Frontiers in integrative neuroscience · 2013Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The endogenous cannabinoids 2-arachidonoylglycerol (2-AG) and arachidonoyl ethanolamide (AEA or anandamide) play vital roles during nervous system development including regulating axonal guidance and synaptogenesis. The enzymatic degradation of 2-AG and AEA is highly susceptible to inhibition by organophosphate compounds in vitro. Furthermore, acute in vivo exposure of adult animals to the agricultural insecticide chlorpyrifos (CPS) caused moderate inhibition of both 2-AG and AEA hydrolysis. However, the effects of repeated exposure to lower levels of CPS, especially during development, on endocannabinoid metabolism in the brain is not known. To examine this, rat pups were orally exposed daily from postnatal days 10-16 to either 1.0, 2.5, or 5.0 mg/kg CPS. Body weight gain was reduced by 5.0 mg/kg on all days of treatment whereas 2.5 mg/kg reduced the weight gain only on the last two days of treatment. At 4-h postexposure on day 16, forebrain cholinesterase (ChE) activity and hydrolysis of 2-AG and AEA were inhibited in a dose-related manner, and the extent of inhibition from highest to lowest level was AEA hydrolysis > ChE activity > 2-AG hydrolysis. The extent of inhibition of AEA hydrolysis was approximately twice than that of ChE activity with AEA hydrolysis being virtually eliminated by 2.5 and 5.0 mg/kg and 1.0 mg/kg causing 40% inhibition. The sensitivity of AEA hydrolysis, compared with canonical targets such as ChE activity, suggests a potential alternative developmental target for CPS. Inhibition of AEA hydrolysis could result in accumulation of endocannabinoids, which could alter normal endocannabinoid transmission during brain maturation.
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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.