Evidence map›Paper›PMID 26896066›Full record

ArticleIn vitro cellular & developmental biology. Animal2016

Increased level of reactive oxygen species persuades postovulatory aging-mediated spontaneous egg activation in rat eggs cultured in vitro.

Karuppanan V Premkumar, Shail K Chaube

Abstract read
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In one paragraph

Article in In vitro cellular & developmental biology. Animal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Effects of pentoxifylline on mouse oocytes maturation and qualityIranian journal of basic medical sciences · 2025
    Article
  3. Article
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  14. Article
  15. Reactive Oxygen Species Generation and Use of Antioxidants duringInternational journal of fertility & sterility
    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

2 authors at 1 institution in 1 country.

Karuppanan V PremkumarCell Physiology Laboratory, Department of Zoology, Centre of Advanced Study, Banaras Hindu University, Varanasi, 221005, UP, India.
Shail K ChaubeCell Physiology Laboratory, Department of Zoology, Centre of Advanced Study, Banaras Hindu University, Varanasi, 221005, UP, India. shailchaubey@gmail.com.
Banaras Hindu University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study was aimed to find out whether increased level of reactive oxygen species (ROS) particularity hydrogen peroxide (H2O2) could persuade postovulatory aging-mediated abortive spontaneous egg activation (SEA) in rat eggs cultured in vitro. For this purpose, ROS and H2O2 levels, mitochondria distribution and its membrane potential, p286-CaMK-II, Emi2, Thr-161 phophorylated cyclin-dependent protein kinase1 (Cdk1) as well as cyclin B1 levels, in vitro effects of 3-tert-butyl-4 hydroxy anisole (BHA), pentoxifylline and dibutyryl-adenosine 3',5'-cyclic monophosphate (db-cAMP) were analyzed during postovulatory aging-induced abortive SEA in vitro. Data of the present study suggest that postovulatory aging increased H2O2 levels, disturbed mitochondrial distribution pattern and mitochondrial membrane potential (MMP) in eggs. There was an significant increase of p286-CaMK-II level, while Emi2 level reduced significantly during egg aging in vitro. The reduced Emi2 level was associated with decreased Thr-161 phosphorylated cyclin-dependent kinase-1 (Cdk1) as well as cyclin B1 level in aged eggs that underwent abortive SEA. Further, supplementation of pentoxifylline, db-cAMP, and BHA protected postovulatory aging-mediated abortive SEA in concentration-dependent manner. These data suggest that postovulatory aging increased H2O2 levels, reduced MMP, and increased p286-CaMK-II. The increased p286-CaMK-II was associated with reduced Emi2 level and maturation-promoting factor levels during postovulatory aging-mediated abortive SEA. Drugs that elevate cAMP directly or indirectly and BHA protected postovulatory aging-mediated abortive SEA possibly by reducing ROS level in rat eggs cultured in vitro.

Indexed as

Cellular SenescenceLuteal PhaseAnimalsBucladesineButylated HydroxyanisoleCalcium-Calmodulin-Dependent Protein Kinase Type 2CDC2 Protein KinaseCyclin B1Cyclin-Dependent KinasesF-Box ProteinsFemaleHydrogen PeroxideMembrane Potential, MitochondrialMitochondriaOocytesPentoxifyllineBucladesineButylated HydroxyanisoleCalcium-Calmodulin-Dependent Protein Kinase Type 2CDC2 Protein KinaseCdk1 protein, ratCyclin B1Cyclin-Dependent KinasesEmi2 protein, ratF-Box ProteinsHydrogen PeroxidePentoxifyllineReactive Oxygen SpeciesAbortive SEAEgg agingMitochondria membrane potentialRatROS

Identifiers

PMID26896066
OpenAlexW2287152378

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.