Evidence map›Paper›PMID 27670526›Full record

ArticleJournal of ovarian research2016

Hypermethylated APC in serous carcinoma based on a meta-analysis of ovarian cancer.

Chunyan Shen, Qifang Sheng, Xiaojie Zhang, Yuling Fu, Kemiao Zhu

Open access · goldAbstract read
In one paragraph

Article in Journal of ovarian research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. APC Promoter Hypermethylation as a Prognostic Marker in Breast Cancer Patients.Asian Pacific journal of cancer prevention : APJCP · 2020
    Article
  3. Review
  4. Review
  5. Article
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 1 institution in 1 country.

Chunyan ShenObstetrics and Gynecology Department, The No. 2 Hospital of Yinzhou, Ningbo, 315040, Zhejiang, China.
Qifang ShengObstetrics and Gynecology Department, The No. 2 Hospital of Yinzhou, Ningbo, 315040, Zhejiang, China. shengqifangnb@163.com.
Xiaojie ZhangObstetrics and Gynecology Department, The No. 2 Hospital of Yinzhou, Ningbo, 315040, Zhejiang, China. 276802346@qq.com.
Yuling FuObstetrics and Gynecology Department, The No. 2 Hospital of Yinzhou, Ningbo, 315040, Zhejiang, China.
Kemiao ZhuObstetrics and Gynecology Department, The No. 2 Hospital of Yinzhou, Ningbo, 315040, Zhejiang, China.
Ningbo No. 2 Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe reduced expression of the Adenomatous polyposis coli (APC) gene, a tumor suppressor gene, through promoter hypermethylation has been reported to play a key role in the carcinogenesis. However, the correlation between APC promoter hypermethylation and ovarian cancer (OC) remains to be clarified.

methodsA comprehensive literature search was carried out in related research databases. The overall odds ratio (OR) and corresponding 95 % confidence interval (CI) were used to evaluate the effects of APC promoter hypermethylation on OC and clinicopathological characteristics.

resultsUltimately, 12 eligible studies were used in our study, including 806 OC samples, 429 normal controls, 109 benign lesions and 75 LMP samples. The pooled OR showed that APC promoter hypermethylation was significantly higher in OC than in normal and benign controls (OR = 6.18 and OR = 3.26, respectively). No significant correlation was observed between OC and low malignant potential (LMP) tumors (P = 0.436). In the comparison of OC and normal controls, subgroup analysis based on race showed that the overall OR of APC promoter hypermethylation was significant and similar in Asians and Caucasians (OR = 8.34 and OR = 5.39, respectively). A subgroup analysis based on sample type found that the pooled OR was significantly higher in blood than in tissue (OR = 18.71 and OR = 5.74, respectively). A significant association was not observed between APC promoter hypermethylation and tumor grade or tumor stage. The pooled OR indicated that APC promoter hypermethylation was significantly lower in serous carcinoma than in non-serous carcinoma (OR = 0.56, P = 0.02). No obvious publication bias was detected by Egger's test (all P > 0.05).

conclusionsAPC promoter hypermethylation may be linked to the increased risk of OC. It was associated with histological type, but not with tumor grade or tumor stage. Moreover, hypermethylated APC may be a noninvasive biomarker using blood samples. Future studies are required to validate these results.

Indexed as

APCBiomarkerHypermethylationOvarian cancerSerous carcinoma

Identifiers

PMID27670526
PMCPMC5037906
OpenAlexW2526473052

What OpenQuestion holds

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Registered trials

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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.