Evidence map›Paper›PMID 25889184›Full record

ArticleParasites & vectors2015

Seroprevalence and genetic characterization of Toxoplasma gondii in cancer patients in Anhui Province, Eastern China.

Lin Wang, Liu-yuan He, De-di Meng, Zhao-wu Chen, He Wen, Gong-si Fang, Qing-li Luo, Kai-quan Huang, Ji-long Shen

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
6.5field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  14. Parasites as potential targets for cancer immunotherapy.Journal of cancer research and clinical oncology · 2023
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  18. Changes of gut microbiota structure in rats infected withFrontiers in cellular and infection microbiology · 2022
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  19. Seroprevalence and Genetic Characterization ofJournal of tropical medicine · 2022
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  20. Seroprevalence and Risk Factors ofFrontiers in cellular and infection microbiology · 2021
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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

9 authors at 3 institutions in 1 country.

Lin WangClinical Laboratory, the First Affiliated Hospital of Anhui University of Chinese Medicine, 230031, Hefei, Anhui Province, China. azywl1985@126.com.
Liu-yuan HeDepartment of Parasitology, Provincial Laboratory of Microbiology & Parasitology and the Key Laboratory of Zoonoses Anhui, Anhui Medical University, 230032, Hefei, Anhui Province, China. 305120198@qq.com.
De-di MengDepartment of Medical Technology, Anhui Medical College, 230601, Hefei, Anhui Province, China. 87139376@qq.com.
Zhao-wu ChenClinical Laboratory, Anhui Tumour Hospital, West Campus of Affiliated Provincial Hospital of Anhui Medical University, 230022, Hefei, Anhui Province, China. 104597894@qq.com.
He WenClinical Laboratory, the First People's Hospital, 230061, Hefei, Anhui Province, China. 308878279@qq.com.
Gong-si FangDepartment of Medical Technology, Anhui Medical College, 230601, Hefei, Anhui Province, China. 396841874@qq.com.
Qing-li LuoDepartment of Parasitology, Provincial Laboratory of Microbiology & Parasitology and the Key Laboratory of Zoonoses Anhui, Anhui Medical University, 230032, Hefei, Anhui Province, China. 345052511@qq.com.
Kai-quan HuangClinical Laboratory, the First Affiliated Hospital of Anhui University of Chinese Medicine, 230031, Hefei, Anhui Province, China. hkq1510@163.com.
Ji-long ShenDepartment of Parasitology, Provincial Laboratory of Microbiology & Parasitology and the Key Laboratory of Zoonoses Anhui, Anhui Medical University, 230032, Hefei, Anhui Province, China. shenjilong53@126.com.
Anhui Medical University · CNAnhui University of Traditional Chinese Medicine · CNHefei First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have indicated the predominance of Toxoplasma gondii genotype Chinese 1 in animals in China. However, little is known of the genetic features of the parasite in humans. This study aims to determine the prevalence of anti-T. gondii antibodies based on which the genetic character of the parasite was identified in cancer patients in China.

methodsA total of 1014 serum samples with malignant neoplasms were collected from six tertiary-care hospitals (HAUCM, APH, HAMU, XAH, FHH and HBMC) from January, 2012 to August, 2013. Antibodies against T. gondii were examined by enzyme-linked immunosorbent assay (ELISA). Blood samples were subsequently used for PCR assay to detect T. gondii DNA (gra6). The DNA positive samples were subjected to genotyping using a multiplex multilocus nested PCR-RFLP at 10 loci, including sag1, sag2, sag3, btub, gra6, l358, c22-8, c29-2, pk1 and apico. Samples from the patients were anonymous and only data with regard to age and gender was available at sample collection.

resultsOverall, 8.38% (85/1014) of the examined patients showed positive antibodies against T. gondii. Among them, 61 (6.02%) were seropositive only for IgG, 16 (1.58%) were only for IgM, and 8 (0.79%) were found to be positive for both IgG and IgM. The seroprevalence of antibodies to Toxoplasma ranged from 5.8% to 11.0%, without regional difference (χ(2) = 4.764, P = 0.445). No significant differences of the positive rates of T. gondii infection were noted in genders (male, 8.96%; female, 7.45%) (χ(2) = 0.707, P = 0.400) and in ages (χ(2) = 1.172, P = 0.947). Of 1014 DNA samples, 36 (3.55%) were positive for T. gondii by nested PCR at gra6 locus and nine gave rise to complete genotyping results. All samples with achieved PCR-RFLP genotyping showed a common genetic character of type Chinese 1 (ToxoDB#9).

conclusionSeroprevalence of toxoplasmosis in immunosuppressed individuals is rarely reported in China and we presented a positive rate of 8.38% in cancer patients. Toxoplasma genomic DNA genotyping demonstrated a common genetic character of Chinese 1, indicating a possible pathogenic origin of animals in human infection.

Indexed as

Seroepidemiologic StudiesAdultAgedAged, 80 and overAgingAntibodies, ProtozoanChinaFemaleGenotypeHumansImmunoglobulin GImmunoglobulin MMaleMiddle AgedNeoplasmsPolymerase Chain ReactionAntibodies, ProtozoanImmunoglobulin GImmunoglobulin M

Identifiers

PMID25889184
PMCPMC4379604
OpenAlexW2121365597

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.