Evidence map›Paper›PMID 32676985›Full record

ArticleFish physiology and biochemistry2020

Sperm antioxidant system in ocellate river stingray Potamotrygon motoro at transition from seminal vesicle to cloaca.

Viktoriya Dzyuba, Alexandre Ninhaus-Silveira, Rosicleire Veríssimo-Silveira, Marek Rodina, Borys Dzyuba

Abstract read
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In one paragraph

Article in Fish physiology and biochemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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.

Viktoriya DzyubaResearch Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic. vdzyuba@frov.jcu.cz.ORCID https://orcid.org/0000-0003-0820-1360
Alexandre Ninhaus-SilveiraNeotropical Ichthyology Laboratory (LINEO), Department of Biology and Zootechny, Ilha Solteira School of Engineering, São Paulo State University, Monção Street, 226, Ilha Solteira, SP, 15385-000, Brazil.
Rosicleire Veríssimo-SilveiraNeotropical Ichthyology Laboratory (LINEO), Department of Biology and Zootechny, Ilha Solteira School of Engineering, São Paulo State University, Monção Street, 226, Ilha Solteira, SP, 15385-000, Brazil.
Marek RodinaResearch Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
Borys DzyubaResearch Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic.ORCID https://orcid.org/0000-0003-2083-3010

Funding

Grantová Agentura České Republiky 16-03754SJihočeská Univerzita v Českých Budějovicích 125/2016/ZMinisterstvo Školství, Mládeže a Tělovýchovy CZ.02.1.01./0.0/0.0/16_025/0007370Ministerstvo Školství, Mládeže a Tělovýchovy LM2018099
6 · The paper itself

Abstract

The importance of reactive oxygen species and the antioxidant system in sperm biology has been recognized for different bony fishes but nothing is known in this regard for chondrichthyans. For the first time for cartilaginous fishes, the enzymatic antioxidant system was shown herein to be present in both fractions of sperm (spermatozoa and seminal fluid) collected from two different places (seminal vesicle and cloaca). In internally fertilizing freshwater ocellate river stingray, Potamotrygon motoro, the activity of superoxide dismutase and glutathione peroxidase was not changed upon sperm transition from the seminal vesicle to the cloaca. The activity of catalase was significantly increased for both sperm fractions at transition from the seminal vesicle to the cloaca (1.6 times for spermatozoa and 1.9 times for seminal fluid). The role of the sperm antioxidant system for different aspects of internal fertilization is discussed. The presented results are the initiatory step in uncovering the biochemical events of internal reproduction in Chondrichthyes.

Indexed as

AnimalsCatalaseCloacaElasmobranchiiFertilizationGlutathione PeroxidaseMaleSemenSeminal VesiclesSpermatozoaSuperoxide DismutaseCatalaseGlutathione PeroxidaseSuperoxide DismutaseCartilaginous fishCatalaseGlutathione peroxidaseSeminal fluid and spermatozoaSuperoxide dismutase

Identifiers

PMID32676985

What OpenQuestion holds

Textmetadata
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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.