Evidence map›Paper›PMID 18389369›Full record

ArticleEcotoxicology (London, England)2008

Polysaccharides as a protective response against microcystin-induced oxidative stress in Chlorella vulgaris and Scenedesmus quadricauda and their possible significance in the aquatic ecosystem.

Zakaria A Mohamed

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Article in Ecotoxicology (London, England), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Effects of Toxic and Non-ToxicMicroorganisms · 2024
    Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Microalgae metabolites: A rich source for food and medicine.Saudi journal of biological sciences · 2019
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
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

1 author.

Zakaria A MohamedFaculty of Science, Department of Botany, Sohag University, Sohag, Egypt. mzakaria_99@yahoo.com

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Toxic cyanobacteria occur worldwide in aquatic ecosystem, and their toxins have adverse effects on most aquatic organisms. However, some species of green algae can grow and flourish at environmentally relevant concentrations of microcystins (MCYSTs). Therefore, the present study aimed to investigate the possible adaptive response of two representatives of green algae, Chlorella vulgaris and Scenedesmus quadricauda to these toxins. Growth and antioxidative biomarkers of these algae were studied over a 14-day exposure to different concentrations of pure microcystin-LR (MCYST-LR) and crude MCYSTs. Both pure and crude MCYSTs significantly decreased the growth of the two algae compared to control cultures during the first 3 days of incubation. Meanwhile, increases in glutathione-S-transferase (GST), glutathione peroxidase (GPX) and lipid peroxidation, and decreases in glutathione (GSH) were also observed in toxin-treated cultures. All growth and biochemical variables were restored to control levels after 3 days of incubation and remained at levels near to those of control cultures during the remaining period of experiment. The changes in these variables correlated with polysaccharide contents of toxin-treated cultures, indicating the involvement of these polysaccharides in protecting the algal cells against MCYST-induced oxidative stress. The results of in vitro assay of antioxidant activity revealed that these polysaccharides had different activities, depending on their sulfate contents. This study provides an evidence for the first time that polysaccharides play a protective role in some microalgae against MCYST-induced oxidative stress.

Indexed as

Chlorella vulgarisScenedesmusAdaptation, PhysiologicalAntioxidantsBacterial ToxinsDose-Response Relationship, DrugEcosystemLipid PeroxidationMarine ToxinsMicrobial ViabilityMicrocystinsOxidative StressPolysaccharides, BacterialAntioxidantsBacterial Toxinscyanoginosin LRMarine ToxinsMicrocystinsPolysaccharides, Bacterial

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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.