Evidence map›Paper›PMID 29386028›Full record

ArticleParticle and fibre toxicology2018

Pulmonary exposure to carbonaceous nanomaterials and sperm quality.

Astrid Skovmand, Anna Jacobsen Lauvås, Preben Christensen, Ulla Vogel, Karin Sørig Hougaard, Sandra Goericke-Pesch

Open access · goldAbstract read
In one paragraph

Article in Particle and fibre toxicology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

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  12. Hybrid material for open abdomen: saving the wound from intestinal fistula.Journal of materials science. Materials in medicine · 2019
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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

6 authors at 3 institutions in 2 countries.

Astrid SkovmandThe National Research Center for the Working Environment, Lersø Parkallé, DK-2100, Copenhagen Ø, Denmark.ORCID 0000-0002-6365-674X
Anna Jacobsen LauvåsSection for Veterinary Reproduction and Obstetrics, Department of Veterinary Clinical Sciences, University of Copenhagen, Dyrlægvej 68, DK-1870, Frederiksberg C, Denmark.
Preben Christensen, SPZ Lab A/S, Fruebjergvej 3, DK-2100, København Ø, Denmark.
Ulla VogelThe National Research Center for the Working Environment, Lersø Parkallé, DK-2100, Copenhagen Ø, Denmark.
Karin Sørig HougaardThe National Research Center for the Working Environment, Lersø Parkallé, DK-2100, Copenhagen Ø, Denmark.
Sandra Goericke-PeschSection for Veterinary Reproduction and Obstetrics, Department of Veterinary Clinical Sciences, University of Copenhagen, Dyrlægvej 68, DK-1870, Frederiksberg C, Denmark. Sandra.Goericke-Pesch@tiho-hannover.de.
University of Copenhagen · DKHospital South West Jutland · DKNational Research Centre for the Working Environment · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSemen quality parameters are potentially affected by nanomaterials in several ways: Inhaled nanosized particles are potent inducers of pulmonary inflammation, leading to the release of inflammatory mediators. Small amounts of particles may translocate from the lungs into the lung capillaries, enter the systemic circulation and ultimately reach the testes. Both the inflammatory response and the particles may induce oxidative stress which can directly affect spermatogenesis. Furthermore, spermatogenesis may be indirectly affected by changes in the hormonal milieu as systemic inflammation is a potential modulator of endocrine function. The aim of this study was to investigate the effects of pulmonary exposure to carbonaceous nanomaterials on sperm quality parameters in an experimental mouse model.

methodsEffects on sperm quality after pulmonary inflammation induced by carbonaceous nanomaterials were investigated by intratracheally instilling sexually mature male NMRI mice with four different carbonaceous nanomaterials dispersed in nanopure water: graphene oxide (18 μg/mouse/i.t.), Flammruss 101, Printex 90 and SRM1650b (0.1 mg/mouse/i.t. each) weekly for seven consecutive weeks. Pulmonary inflammation was determined by differential cell count in bronchoalveolar lavage fluid. Epididymal sperm concentration and motility were measured by computer-assisted sperm analysis. Epididymal sperm viability and morphological abnormalities were assessed manually using Hoechst 33,342/PI flourescent and Spermac staining, respectively. Epididymal sperm were assessed with regard to sperm DNA integrity (damage). Daily sperm production was measured in the testis, and testosterone levels were measured in blood plasma by ELISA.

resultsNeutrophil numbers in the bronchoalveolar fluid showed sustained inflammatory response in the nanoparticle-exposed groups one week after the last instillation. No significant changes in epididymal sperm parameters, daily sperm production or plasma testosterone levels were found.

conclusionDespite the sustained pulmonary inflammatory response, an eight week exposure to graphene oxide, Flammruss 101, Printex 90 and the diesel particle SRM1650b in the present study did not appear to affect semen parameters, daily sperm production or testosterone concentration in male NMRI mice.

Indexed as

DNA DamageAnimalsBody WeightCarbonEpididymisInhalation ExposureMaleMice, Inbred StrainsNanostructuresOrgan SizeParticle SizePneumoniaSpermatozoaSperm CountSperm MotilitySurface PropertiesCarbonTestosteroneComputer-assisted sperm analysisInflammationNanomaterialsParticlesPulmonary exposureSemen parametersToxicity

Identifiers

PMID29386028
PMCPMC5793436
OpenAlexW2790883631

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.