Evidence map›Paper›PMID 33226531›Full record

ArticleJournal of assisted reproduction and genetics2021

Melatonin levels and microRNA (miRNA) relative expression profile in the follicular ambient microenvironment in patients undergoing in vitro fertilization process.

Haroon Latif Khan, Shahzad Bhatti, Sana Abbas, Celal Kaloglu, Syeda Qurat-Ul-Ain Zahra, Yousaf Latif Khan, Zahira Hassan, Nilgün Öztürk Turhan, Hikmet Hakan Aydin

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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 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

7 citing papers in PubMed, 14 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

9 authors at 6 institutions in 3 countries.

Haroon Latif KhanLahore Institute of Fertility and Endocrinology, Hameed Latif Hospital, 14-Abu Bakar Block, New Garden Town, Lahore, 54800, Pakistan.
Shahzad BhattiLahore Institute of Fertility and Endocrinology, Hameed Latif Hospital, 14-Abu Bakar Block, New Garden Town, Lahore, 54800, Pakistan. drshahzadbhatti@yahoo.com.ORCID http://orcid.org/0000-0003-1937-0100
Sana AbbasLahore Institute of Fertility and Endocrinology, Hameed Latif Hospital, 14-Abu Bakar Block, New Garden Town, Lahore, 54800, Pakistan.
Celal KalogluDepartment of Histology and Embryology, Faculty of Medicine, Sivas-Cumhuriyet University, 58140, Sivas, Turkey.
Syeda Qurat-Ul-Ain ZahraDepartment of Biochemistry, Kinnaird College, Lahore, Pakistan.
Yousaf Latif KhanLahore Institute of Fertility and Endocrinology, Hameed Latif Hospital, 14-Abu Bakar Block, New Garden Town, Lahore, 54800, Pakistan.
Zahira HassanDepartment of Cellular Pathology, Royal Free Hospital, London, NW3 2QG, UK.
Nilgün Öztürk TurhanBayındır Hastanesi, Department of Obstetrics and Gynecology, Nispetiye Mah. Aydın sokak No:8, 34340, Beşiktaş, Istanbul, Turkey.
Hikmet Hakan AydinDepartment of Medical Biochemistry, Ege University School of Medicine, Bornova, Izmir, Turkey.
Rashid Latif Medical College · PKBayındır Hastanesi · TREge University · TRKinnaird College for Women University · PKSivas Cumhuriyet Üniversitesi · TRThe Royal Free Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIntrafollicular fluid (IFF) melatonin plays a decisive role in maintaining granulosa cells' DNA integrity and protects them against apoptosis. It reduces oxidative stress and improves the oocyte quality with a higher fertilization rate.

methodThis prospective study investigated the antioxidant property of IFF melatonin and its impact on IVF outcome parameters. We also explored the relative expression of five microRNAs (miR-663b, miR-320a, miR-766-3p, miR-132-3p, miR-16-5p) and levels of cell-free DNA (cfDNA) by real-time PCR in unexplained infertile patients. We collected 425 follicular fluid (FF) samples containing mature oocytes from 295 patients undergoing IVF.

resultsPatients were subgrouped based on IFF melatonin concentration (group A ≤ 30 pg/mL, group B > 70 to ≤ 110 pg/mL, group C > 111 to ≤ 385 pg/mL). Our results showed that patients with ≤ 30 pg/mL IFF melatonin levels have significantly higher oxidative stress markers, cfDNA levels, and lower relative expression of miR-663b, miR-320a, miR-766-3p, miR-132-3p, and miR-16-5p compared to other subgroups (p < 0.001). Similarly, they have a low fertilization rate and a reduced number of high-quality day 3 embryos.

conclusionFindings suggest that the therapeutic use of melatonin produces a considerable rise in the number of mature oocytes retrieved, fertilization rate, and good-quality embryo selection. Furthermore, miRNA signature enhances the quality of embryo selection, thus, may allow us to classify them as non-invasive biomarkers to identify good-quality embryos.

Indexed as

Cellular MicroenvironmentFemaleFertilization in VitroGene Expression Regulation, DevelopmentalHumansMelatoninMicroRNAsOvarian FollicleTranscriptomeMelatoninMicroRNAsMIRN132 microRNA, humanMIRN16 microRNA, humanMIRN320 microRNA, humanMIRN663 microRNA, humanMIRN766 microRNA, humanCell-free DNAEmbryo qualityFollicular fluidMelatoninmiRNA expressionUnexplained infertility

Identifiers

PMID33226531
PMCPMC7884535
OpenAlexW3108752949

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.