Evidence map›Paper›PMID 28813370›Full record

ArticleMedical science monitor : international medical journal of experimental and clinical research2017

Chronic Systemic Toxicity Study of Copper Intrauterine Devices in Female Wistar Rats.

Xia Zhao, Qian Liu, Haixiang Sun, Yali Hu, Zhaoxu Wang

Open access · hybridAbstract read
In one paragraph

Article in Medical science monitor : international medical journal of experimental and clinical research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Copper in Gynecological Diseases.International journal of molecular sciences · 2023
    Review
  3. Article
  4. Article
  5. 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

5 authors at 2 institutions in 1 country.

Xia ZhaoCenter for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China (mainland).
Qian LiuJiangsu Province Institute for Medical Equipment Testing, Nanjing, Jiangsu, China (mainland).
Haixiang SunCenter for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China (mainland).
Yali HuCenter for Reproductive Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China (mainland).
Zhaoxu WangTesting Department of Biomaterials, Chinese National Institutes for Food and Drug Control, Beijing, China (mainland).
Nanjing Drum Tower Hospital · CNNational Institutes for Food and Drug Control · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND The aim of this study was to evaluate the chronic systemic and local toxicity of a copper intrauterine device in a rat model. MATERIAL AND METHODS Cu-IUD fragments were inserted into the uterine horns of female Wistar rats for 26 weeks (equivalent 15.42-17.33 years in humans). We tested copper at 20, 40, and 60 times the clinical dosages to study copper toxicity under severe conditions. Classic chronic systemic toxicity evaluations, including body weight, hematology, organ coefficient, and tissue reactions, were performed. RESULTS The body weight of the rats increased during the 26 weeks, which showed that the Cu-IUD implant had no effect on animal growth. Histological examinations and organ coefficients of the uterus and other major organs indicated no obvious systemic or local impairment. Blood tests confirmed that the hepatic and renal functions remained normal. CONCLUSIONS These results obtained at different dosages and long-term implantation provide solid data confirming the safety of long-term use of Cu-IUDs. However, the elevated leucocyte levels found in this study warrant further investigation.

Indexed as

AnimalsCopperFemaleIntrauterine Devices, CopperRatsRats, WistarToxicity Tests, ChronicUterusCopper

Identifiers

PMID28813370
PMCPMC5569927
OpenAlexW2747257216

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.