Evidence map›Paper›PMID 29149522›Full record

ArticleJournal of pineal research2018

Melatonin improves the meiotic maturation of porcine oocytes by reducing endoplasmic reticulum stress during in vitro maturation.

Hyo-Jin Park, Jae-Young Park, Jin-Woo Kim, Seul-Gi Yang, Jae-Min Jung, Min-Ji Kim, Man-Jong Kang, Young Ho Cho, Gabbine Wee, Hee-Young Yang and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of pineal research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
4.3field-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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 99 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

13 authors at 6 institutions in 1 country.

Hyo-Jin ParkDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Jae-Young ParkDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Jin-Woo KimDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Seul-Gi YangDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Jae-Min JungDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Min-Ji KimDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.
Man-Jong KangDepartment of Animal Science, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea.
Young Ho ChoDepartment of Pharmaceutics & Biotechnology, College of Medical Engineering, Konyang University, Daejeon, Korea.
Gabbine WeeLaboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, Korea.
Hee-Young YangLaboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, Korea.
Bong-Seok SongNational Primate Research Center & Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Chungbuk, Korea.
Sun-Uk KimNational Primate Research Center & Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Chungbuk, Korea.
Deog-Bon KooDepartment of Biotechnology, College of Engineering, Daegu University, Jillyang, Gyeongsan, Gyeongbuk, Korea.ORCID http://orcid.org/0000-0001-7825-9598
Daegu University · KRDaegu-Gyeongbuk Medical Innovation Foundation · KRKorea Research Institute of Bioscience and Biotechnology · KRChonnam National University · KRDong-A University Hospital · KRKonyang University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Under endoplasmic reticulum (ER)-stress conditions, the unfolded protein response (UPR) generates a defense mechanism in mammalian cells. The regulation of UPR signaling is important in oocyte maturation, embryo development, and female reproduction of pigs. Recent studies have shown that melatonin plays an important role as an antioxidant to improve pig oocyte maturation. However, there is no report on the role of melatonin in the regulation of UPR signaling and ER-stress during in vitro maturation (IVM) of porcine oocytes. Therefore, the objective of this study was to investigate the antioxidative effects of melatonin on porcine oocyte maturation through the regulation of ER-stress and UPR signaling. We investigated the changes in the mRNA/protein expression levels of three UPR signal genes (Bip/Grp78, ATF4, P90/50ATF6, sXbp1, and CHOP) on oocytes, cumulus cells, and cumulus-oocyte complexes (COCs) during IVM (metaphase I; 22 hours and metaphase II; 44 hours) by Western blot and reverse transcription-polymerase chain reaction analysis. Treatment with the ER-stress inducer, tunicamycin (Tm), significantly increased expression of UPR markers. Additionally, cumulus cell expansion and meiotic maturation of oocytes were reduced in COCs of Tm-treated groups (1, 5, and 10 μg/mL). We confirmed the reducing effects of melatonin (0.1 μmol/L) on ER-stress after pretreatment with Tm (5 μg/mL; 22 hours) in maturing COCs. Addition of melatonin (0.1 μmol/L) to Tm-pretreated COCs recovered meiotic maturation rates and expression of most UPR markers. In conclusion, we confirmed a role for melatonin in the modulation of UPR signal pathways and reducing ER-stress during IVM of porcine oocytes.

Indexed as

AnimalsAntioxidantsCumulus CellsEndoplasmic Reticulum StressFemaleMeiosisMelatoninOocytesOogenesisSwineUnfolded Protein ResponseAntioxidantsMelatoninendoplasmic reticulum-stressmelatoninoocyte maturationpigunfolding protein response

Identifiers

PMID29149522
PMCPMC5814851
OpenAlexW2768291652

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.