Evidence map›Paper›PMID 24647646›Full record

ArticlePloS one2014

Increased complement C1q level marks active disease in human tuberculosis.

Yi Cai, Qianting Yang, Yueqiang Tang, Mingxia Zhang, Haiying Liu, Guoliang Zhang, Qunyi Deng, Jian Huang, Zhiliang Gao, Boping Zhou and 2 more

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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

78 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Review
  7. Article
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  13. Expression and clinical value of key mFrontiers in immunology · 2025
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  20. Complement C1q is a key player in tumor-associated macrophage-mediated CD8International journal of biological sciences · 2024
    Article

18 more citing papers are in PubMed but not listed here.

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

12 authors.

Yi CaiDepartment of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China; Shenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China.
Qianting YangGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China; Shenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China.
Yueqiang TangGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China; Shenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China.
Mingxia ZhangGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China.
Haiying LiuInstitute of Pathogen Biology, Chinese Academy of Medical Sciences, Beijing, China.
Guoliang ZhangGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China.
Qunyi DengShenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China.
Jian HuangShenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China; Shanghai-MOST Key Laboratory of Disease and Health Genomics, National Engineering Center for Biochip at Shanghai, Shanghai, China.
Zhiliang GaoDepartment of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
Boping ZhouGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China.
Carl G FengDepartment of Infectious Diseases and Immunology, Sydney Medical School, The University of Sydney University, Australia.
Xinchun ChenGuangdong Key Laboratory for Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, China; Shenzhen Key Laboratory of Infection and Immunity, Shenzhen Third People's Hospital, Guangdong Medical College, Shenzhen, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComplement functions as an important host defense system and complement C5 and C7 have been implicated in immunopathology of tuberculosis. However, little is known about the role of other complement components in tuberculosis.

methodsComplement gene expression in peripheral blood mononuclear cells of tuberculosis patients and controls were determined using whole genome transcriptional microarray assays. The mRNA and protein levels of three C1q components, C1qA, C1qB, and C1qC, were further validated by qRT-PCR and enzyme-linked immunosorbent assay, respectively. The percentages of C1q expression in CD14 positive cells were determined by flow cytometry. Finally, C1qC protein level was quantified in the pleural fluid of tuberculosis and non-tuberculosis pleurisy.

resultsC1q expression increases significantly in the peripheral blood of patients with active tuberculosis compared to healthy controls and individuals with latent TB infection. The percentage of C1q-expressing CD14 positive cells is significantly increased in active TB patients. C1q expression in the peripheral blood correlates with sputum smear positivity in tuberculosis patients and is reduced after anti-tuberculosis chemotherapy. Notably, receiver operating characteristic analysis showed that C1qC mRNA levels in peripheral blood efficiently discriminate active from latent tuberculosis infection and healthy controls. Additionally, C1qC protein level in pleural effusion shows improved power in discriminating tuberculosis from non-tuberculosis pleurisy when compared to other inflammatory markers, such as IL-6 and TNF-α.

conclusionsC1q expression correlates with active disease in human tuberculosis. C1q could be a potential diagnostic marker to discriminate active tuberculosis from latent tuberculosis infection as well as tuberculosis pleurisy from non-tuberculosis pleurisy.

Indexed as

AdolescentAdultAgedBiomarkersComplement C1qFemaleHumansLeukocytes, MononuclearMaleMiddle AgedTuberculosisYoung AdultBiomarkersComplement C1q

Identifiers

PMID24647646
PMCPMC3960215

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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.