Evidence map›Paper›PMID 34622369›Full record

SynthesisReviews of environmental contamination and toxicology2021

The Toxic Effect of Silver Nanoparticles on Nerve Cells: A Systematic Review and Meta-Analysis.

Atousa Janzadeh, Michael R Hamblin, Narges Janzadeh, Hossein Arzani, MahsaTashakori-Miyanroudi, Mahmoud Yousefifard, Fatemeh Ramezani

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Reviews of environmental contamination and toxicology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. 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

7 authors at 3 institutions in 3 countries.

Atousa JanzadehRadiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.
Michael R HamblinWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
Narges JanzadehOccupational Medicine Research Center (OMRC), Iran University of Medical Sciences (IUMS), Tehran, Iran.
Hossein ArzaniDepartment of Medical Physics and Biomedical Engineering, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
MahsaTashakori-MiyanroudiDepartment of Medical Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Mahmoud YousefifardPhysiology Research Center, Iran University of Medical Sciences, Tehran, Iran. yousefifard.M@iums.ac.ir.
Fatemeh RamezaniPhysiology Research Center, Iran University of Medical Sciences, Tehran, Iran. ramezani.f@iums.ac.ir.
Iran University of Medical Sciences · IRHarvard University · USShahid Beheshti University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the increasing use of silver nanoparticles in medical sciences, published studies on their interaction with nerve cells and evaluation of risks are dispersed. This systematic review and meta-analysis could be used to devise safety guidelines for the use of silver nanoparticles in industry and medicine to reduce adverse effects on the CNS.After extensive searches, the full text of 30 related studies was reviewed and data mining completed. Data were analyzed by calculating the mean of different ratios between treated and untreated groups. Linear regression between variables was evaluated by meta-regression. Subgroup analysis was also performed due to heterogeneity.Treatment with silver nanoparticles significantly reduced cell viability (SMD = -1.79%; 95% CI: -2.17 to -1.40; p < 0.0001). Concentration > 0.1 μg/mL could kill neurons, while lower concentration would not (SMD -0.258; 95% CI: -0.821 to 0.305; p = 369). In addition to the concentration, the coating, size of the nanoparticles, and cell type are also factors that influence SNP nerve cell toxicity. Measurement of apoptosis (SMD = 2.21; 95% CI: 1.62 to 2.80; p=0.001) and lactate dehydrogenase release rate (SMD = 0.9; 95% CI: 0.33 to 1.47; p < 0.0001) also confirmed the destructive effect of silver nanoparticles on nerve cells.

Indexed as

Metal NanoparticlesSilverApoptosisCell SurvivalNeuronsSilverApoptosisMTT assayNerve cellNeuronSilver nanoparticleToxic

Identifiers

PMID34622369
OpenAlexW3204164849

What OpenQuestion holds

Textmetadata
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.