Evidence map›Paper›PMID 34041658›Full record

ArticleJournal of assisted reproduction and genetics2021

Altered redox status may contribute to aberrant folliculogenesis and poor reproductive outcomes in women with polycystic ovary syndrome.

Aalaap Naigaonkar, Roshan Dadachanji, Indira Hinduja, Srabani Mukherjee

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Aalaap NaigaonkarDepartment of Molecular Endocrinology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, J.M. Street, Parel, Mumbai, Maharashtra, 400012, India.ORCID https://orcid.org/0000-0002-1976-6108
Roshan DadachanjiDepartment of Molecular Endocrinology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, J.M. Street, Parel, Mumbai, Maharashtra, 400012, India.ORCID https://orcid.org/0000-0002-9923-3431
Indira HindujaHinduja IVF Centre, P. D. Hinduja National Hospital and Medical Research Centre, Mahim, Mumbai, Maharashtra, 400016, India.ORCID https://orcid.org/0000-0003-1930-1113
Srabani MukherjeeDepartment of Molecular Endocrinology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, J.M. Street, Parel, Mumbai, Maharashtra, 400012, India. srabanimuk@yahoo.com.ORCID http://orcid.org/0000-0001-9243-4428
National Institute for Research in Reproductive Health · INP. D. Hinduja Hospital and Medical Research Centre · IN

Funding

Board of Research in Nuclear Sciences 37(1)/14/57 /2014-BRNS
6 · The paper itself

Abstract

backgroundWomen with polycystic ovary syndrome (PCOS) are often infertile and opt for artificial reproductive techniques (ART) to conceive. Disrupted pro-/antioxidant balance in oocyte microenvironment may contribute towards sub-optimal oocyte/embryo quality and poor ART outcome in them.

methodsActivities/levels of redox markers and their transcript expression were investigated in follicular fluid and granulosa cells respectively, in women with PCOS (n = 71) and controls (n = 50) undergoing in vitro fertilization (IVF). Correlation analysis of redox markers and IVF parameters was performed.

resultsActivities of superoxide dismutase, glutathione reductase, glutathione peroxidase, and paraoxonase1 were significantly lower in follicular fluid of PCOS women than in controls. Levels of lipid peroxidation, oxidative protein modification, and oxidized glutathione were higher, whereas those of total antioxidant capacity, total thiols, and reduced glutathione were lower in follicular fluid of PCOS women than in controls. Further, comparison of redox markers based on insulin resistance and BMI status of study participants showed similar trends, indicating that PCOS pathophysiology is a significant contributor to oxidative stress irrespective of insulin resistance and BMI. Transcript levels of antioxidant enzymes were lower in granulosa cells from PCOS women than in controls, and they accorded with their activities in follicular fluid. Moreover, few redox markers showed significant correlations with oocyte/embryo quality and pregnancy outcome.

conclusionOur data indicates disrupted redox homeostasis in follicular environment in PCOS which may negatively influence oocyte/embryo quality. Further, granulosa cells may play crucial role in maintaining follicular redox homeostasis. Glutathione system and paraoxonase1 could be explored further as surrogates for IVF prognosis/outcome.

Indexed as

Pregnancy OutcomeAdultBiomarkersCase-Control StudiesFemaleFertilization in VitroFollicular FluidGranulosa CellsHumansInfertility, FemaleOvarian FollicleOxidation-ReductionPolycystic Ovary SyndromePregnancyBiomarkersFollicular fluidGranulosa cellsIVFOocyte/embryo qualityOxidative stressPCOS

Identifiers

PMID34041658
PMCPMC8581097
OpenAlexW3164186295

What OpenQuestion holds

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Registered trials

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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.