Evidence map›Paper›PMID 23154385›Full record

ArticleThe Journal of reproduction and development2013

Ascorbic acid improves the developmental competence of porcine oocytes after parthenogenetic activation and somatic cell nuclear transplantation.

Michel Kere, Chawalit Siriboon, Neng-Wen Lo, Ngoc Tan Nguyen, Jyh-Cherng Ju

Open access · goldAbstract read
In one paragraph

Article in The Journal of reproduction and development, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.1field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 91 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

5 authors at 2 institutions in 1 country.

Michel KereDepartment of Animal Science, National Chung Hsing University, Taichung 402, Taiwan, ROC.
Chawalit Siriboon
Neng-Wen Lo
Ngoc Tan Nguyen
Jyh-Cherng Ju
National Chung Hsing University · TWTunghai University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, a dose-response assessment was performed to understand the relation between supplementation of media with L-ascorbic acid or vitamin C and porcine oocyte maturation and the in vitro development of parthenotes (PA) and handmade cloned (HMC) embryos. Various concentrations (0, 25, 50 and 100 μg/ml) of vitamin C supplemented in in vitro maturation (IVM) and culture (IVC) media were tested. None of these vitamin C additions affected nuclear maturation of oocytes, yet supplementation at 50 μg/ml led to significantly increased intracellular glutathione (GSH) levels and reduced reactive oxygen species (ROS). When cultured in IVM- and/or IVC-supplemented media, the group supplemented with 50 μg/ml of vitamin C showed improved cleavage rates, blastocyst rates and total cell numbers per blastocyst (P<0.05) compared with other groups (control, 25 μg/ml and 100 μg/ml). In contrast, supplementation with 50 μg/ml vitamin C decreased (P<0.05) the apoptosis index as compared with the groups supplemented with 100 μg/ml. In addition, even with a lower blastocyst rate to start with (37.6 vs. 50.3%, P<0.05), supplementation of HMC embryos with vitamin C ameliorated their blastocyst quality to the extent of PA embryos as indicated by their total cell numbers (61.2 vs. 59.1). Taken together, an optimized concentration of vitamin C supplementation in the medium not only improves blastocyst rates and total cell numbers but also reduces apoptotic indices, whereas overdosages compromise various aspects of the development of parthenotes and cloned porcine embryos.

Indexed as

Nuclear Transfer TechniquesAnimalsAntioxidantsApoptosisAscorbic AcidBlastocystCloning, MolecularCulture MediaCytoplasmDose-Response Relationship, DrugEmbryo Culture TechniquesFemaleGlutathioneOocytesParthenogenesisReactive Oxygen SpeciesAntioxidantsAscorbic AcidCulture MediaGlutathioneReactive Oxygen Species

Identifiers

PMID23154385
PMCPMC3943238
OpenAlexW2099544531

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.