Evidence map›Paper›PMID 18815810›Full record

ArticleParasitology research2009

Reference genes for quantitative analysis on Clonorchis sinensis gene expression by real-time PCR.

Won Gi Yoo, Tae Im Kim, Shunyu Li, Oh Sil Kwon, Pyo Yun Cho, Tong-Soo Kim, Kijeong Kim, Sung-Jong Hong

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Parasitology research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

45 citing papers in PubMed, 66 citations in OpenAlex.

  1. Selection and Validation of Reference Genes inPlants (Basel, Switzerland) · 2024
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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 4 institutions in 3 countries.

Won Gi YooDepartment of Medical Environmental Biology, Chung-Ang University College of Medicine, Tongjak-gu, Seoul 156-756, Republic of Korea.
Tae Im Kim
Shunyu Li
Oh Sil Kwon
Pyo Yun Cho
Tong-Soo Kim
Kijeong Kim
Sung-Jong Hong
Chung-Ang University · KRInha University · KRCenters for Disease Control and Prevention · USYanbian University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The accuracies of relative gene expressions as determined by quantitative real-time polymerase chain reaction are largely dependent on the variabilities of the reference genes used. Validation of the stabilities of reference genes under experimental conditions is an essential initial step for comparative studies on the expression levels of target genes in experimental groups. Using three total RNA samples extracted independently from Clonorchis sinensis metacercariae and adults, we determined the gene expression stabilities of eight reference gene candidates and the relative transcript levels of three target genes using the geNorm program. The reference genes found to be stably expressed in metacercariae and adults were phosphoglycerate kinase, beta-actin, and calcyphosine; reference genes found to be stably expressed under gamma-irradiated and non-irradiated conditions were succinate dehydrogenase, small nuclear ribonucleoprotein, and beta-actin; and those stably expressed regardless of bile treatment were small nuclear ribonucleoprotein, phosphoglycerate kinase, and succinate dehydrogenase. According to our data, the expression levels of target genes are dependent on normalization factors, such as the C (T) values of single reference genes and the geometric mean of the C (T) values of three reference genes. When comparing C. sinensis gene expressions, we propose to employ the geometric mean of the C (T) values of more than three reference genes validated in the same experimental setting.

Indexed as

Reference StandardsAnimalsClonorchis sinensisGene Expression ProfilingPolymerase Chain Reaction

Identifiers

PMID18815810
OpenAlexW1974345074

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.