Evidence map›Paper›PMID 30041454›Full record

ArticleInternational journal of molecular sciences2018

Effects and Mechanism of Nano-Copper Exposure on Hepatic Cytochrome P450 Enzymes in Rats.

Huaqiao Tang, Min Xu, Fei Shi, Gang Ye, Cheng Lv, Jie Luo, Ling Zhao, Yinglun Li

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 70 citations in OpenAlex.

  1. Review
  2. Copper Homeostasis and Cuproptosis in Neurological Disorders.Drug design, development and therapy · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Nanosized copper particles induced mesangial cell toxicity via the autophagy pathway.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Oxidative medicine and cellular longevity · 2021
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Huaqiao TangDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. turtletang@163.com.
Min XuDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. xumin010101@163.com.
Fei ShiDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. shifei0202@163.com.
Gang YeDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. yegang010101@163.com.
Cheng LvDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. lvcheng010101@163.com.
Jie LuoDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. luojie1588@sina.cn.
Ling ZhaoDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. zhaoling010101@163.com.
Yinglun LiDepartment of Pharmacy, School of Animal Medicine, Sichuan Agricultural University, Chengdu 611130, China. liyinglun02@163.com.ORCID 0000-0002-8659-4828
Sichuan Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although nano-copper is currently used extensively, the adverse effects on liver cytochrome P450 (CYP450) enzymes after oral exposure are not clear. In this study, we determined the effects and mechanisms of action of nano- and micro-copper on the expression and activity of CYP450 enzymes in rat liver. Rats were orally exposed to micro-copper (400 mg/kg), Cu ion (100 mg/kg), or nano-copper (100, 200 and 400 mg/kg) daily for seven consecutive days. Histopathological, inflammatory and oxidative stress were measured in the livers of all rats. The mRNA levels and activity of CYP450 enzymes, as well as the mRNA levels of select nuclear receptors, were determined. Exposure to nano-copper (400 mg/kg) induced significant oxidative stress and inflammation relative to the controls, indicated by increased levels of interleukin (IL)-2, IL-6, interferon (IFN)-γ, macrophage inflammatory protein (MIP-1), total antioxidant capacity (T-AOC), malondialdehyde (MDA), inducible nitric oxide synthase (iNOS) and nitric oxide (NO) after exposure. The levels of mRNA expression of pregnane X receptor (PXR), constitutive androstane receptor (CAR) and aryl hydrocarbon receptor (AHR) were significantly decreased in 400 mg/kg nano-copper treated rats. Nano-copper activated the expression of the NF-kappa B (NF-κB), mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription (STAT)3 signaling pathways. Nano-copper decreased the mRNA expression and activity of CYP 1A2, 2C11, 2D6, 2E1 and 3A4 in a dose-dependent manner. The adverse effects of micro-copper are less severe than those of nano-copper on the CYP450 enzymes of rats after oral exposure. Ingestion of large amounts of nano-copper in animals severely affects the drug metabolism of the liver by inhibiting the expression of various CYP450 enzymes, which increases the risk of drug-drug interactions in animals.

Indexed as

AnimalsCopperCytochrome P-450 Enzyme SystemInterferon-gammaInterleukin-2LiverMacrophage Inflammatory ProteinsMaleMalondialdehydeMAP Kinase Signaling SystemMetal NanoparticlesNF-kappa BNitric OxideNitric Oxide Synthase Type IIPregnane X ReceptorRatsCopperCytochrome P-450 Enzyme SystemInterferon-gammaInterleukin-2Macrophage Inflammatory ProteinsMalondialdehydeNF-kappa BNitric OxideNitric Oxide Synthase Type IIPregnane X ReceptorReceptors, Aryl HydrocarbonReceptors, SteroidSTAT3 Transcription FactorCYP450 enzymesliver toxicitymechanismnano-copperoral exposure

Identifiers

PMID30041454
PMCPMC6073330
OpenAlexW2883651026

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.