Evidence map›Paper›PMID 25002968›Full record

ArticleJournal of animal science and biotechnology2014

Trans-10, cis-12 conjugated linoleic acid reduces neutral lipid content and may affect cryotolerance of in vitro-produced crossbred bovine embryos.

Ribrio Ivan Tavares Pereira Batista, Nádia Rezende Barbosa Raposo, Paulo Henrique Almeida Campos-Junior, Michele Munk Pereira, Luiz Sergio Almeida Camargo, Bruno Campos Carvalho, Marco Antonio Sundfeld Gama, João Henrique Moreira Viana

Open access · goldAbstract read
In one paragraph

Article in Journal of animal science and biotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

8 citing papers in PubMed, 28 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

8 authors at 3 institutions in 1 country.

Ribrio Ivan Tavares Pereira BatistaFederal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil ; Embrapa Dairy Cattle Research Center, Juiz de Fora, MG 36038-330, Brazil.
Nádia Rezende Barbosa RaposoFederal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil.
Paulo Henrique Almeida Campos-JuniorFederal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
Michele Munk PereiraFederal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil.
Luiz Sergio Almeida CamargoEmbrapa Dairy Cattle Research Center, Juiz de Fora, MG 36038-330, Brazil.
Bruno Campos CarvalhoEmbrapa Dairy Cattle Research Center, Juiz de Fora, MG 36038-330, Brazil.
Marco Antonio Sundfeld GamaEmbrapa Dairy Cattle Research Center, Juiz de Fora, MG 36038-330, Brazil.
João Henrique Moreira VianaEmbrapa Dairy Cattle Research Center, Juiz de Fora, MG 36038-330, Brazil.
Brazilian Agricultural Research Corporation · BRUniversidade Federal de Juiz de Fora · BRUniversidade Federal de Minas Gerais · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to high neutral lipids accumulation in the cytoplasm, in vitro-produced embryos from Bos primigenius indicus and their crosses are more sensitive to chilling and cryopreservation than those from Bos primigenius taurus. The objective of the present study was to evaluate the effects of trans-10, cis-12 conjugated linoleic acid (CLA) on the development and cryotolerance of crossbred Bos primigenius taurus x Bos primigenius indicus embryos produced in vitro, and cultured in the presence of fetal calf serum. Bovine zygotes (n = 1,692) were randomly assigned to one of the following treatment groups: 1) Control, zygotes cultured in Charles Rosenkrans 2 amino acid (CR2aa) medium (n = 815) or 2) CLA, zygotes cultured in CR2aa medium supplemented with 100 μmol/L of trans-10, cis-12 CLA (n = 877). Embryo development (cleavage and blastocyst rates evaluated at days 3 and 8 of culture, respectively), lipid content at morula stage (day 5) and blastocyst cryotolerance (re-expansion and hatching rates, evaluated 24 and 72 h post-thawing, respectively) were compared between groups. Additionally, selected mRNA transcripts were measured by Real-Time PCR in blastocyst stage.

resultsThe CLA treatment had no effect on cleavage and blastocyst rates, or on mRNA levels for genes related to cellular stress and apoptosis. On the other hand, abundance of mRNA for the 1-acylglycerol-3-phosphate 0-acyltransferase-encoding gene (AGPAT), which is involved in triglycerides synthesis, and consequently neutral lipid content, were reduced by CLA treatment. A significant increase was observed in the re-expansion rate of embryos cultured with trans-10, cis-12 CLA when compared to control (56.3 vs. 34.4%, respectively, P = 0.002). However, this difference was not observed in the hatching rate (16.5 vs. 14.0%, respectively, P = 0.62).

conclusionsThe supplementation with trans-10, cis-12 CLA isomer in culture medium reduced the lipid content of in vitro produced bovine embryos by reducing the gene expression of 1-acylglycerol 3-phosphate 0-acyltransferase (AGPAT) enzyme. However, a possible improvement in embryo cryotolerance in response to CLA, as suggested by increased blastocyst re-expansion rate, was not confirmed by hatching rates.

Indexed as

BlastocystsCLACrossbred cattleCryopreservationLipid content

Identifiers

PMID25002968
PMCPMC4083350
OpenAlexW2141100720

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.