Evidence map›Paper›PMID 34488681›Full record

ArticleBMC infectious diseases2021

Characterization of T cell immunity in chronic hepatitis B virus-infected mothers with postpartum alanine transaminase flare.

Meiting Huang, Yunfei Gao, Xueru Yin, Xuelian Zhang, Yaohua Hao, Jing Hu, Zhihua Liu

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
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  6. Phenotypes of peripheral CD4Frontiers in cellular and infection microbiology · 2023
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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

7 authors at 4 institutions in 1 country.

Meiting Huang *Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Yunfei Gao *Department of Obstetrics and Gynaecology, Zengcheng Branch of Nanfang Hospital, Southern Medical University, Guangzhou, 511340, China.
Xueru YinDepartment of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Xuelian ZhangDepartment of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Yaohua HaoDepartment of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Jing HuDepartment of Nosocomial Infection Administration, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
Zhihua LiuDepartment of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China. zhihualiu@126.com.
Southern Medical University · CNNanfang Hospital · CNSouthern Medical University Shenzhen Hospital · CNZhujiang Hospital · CN

Funding

Chinese National Research Grant of the Thirteenth Five-Year Plan for the Key Projects in Infectious Diseases 2017ZX10201201National Natural Science Foundation of China Grant No.81673243Sanming Project of Medicine in Shenzhen SZSM201911001
6 · The paper itself

Abstract

backgroundPostpartum alanine transaminase (ALT) flares occur frequently in chronic hepatitis B virus (HBV)-infected mothers with antepartum antiviral therapy (AVT). We aimed to characterize the T cell immunity in HBV-infected mothers experiencing postpartum ALT flares.

methodsTwenty HBV-infected pregnant women who received AVT at 26-28 weeks of gestation were enrolled and followed up until 15-18 weeks postpartum. Among the 20 HBV-infected pregnant women, 6 experienced postpartum ALT flare (AF mothers), while 14 did not (NAF mothers). T lymphocyte phenotypes and functions were analyzed using flow cytometry.

resultsCompared to NAF mothers, the quantitative HBsAg levels in AF mothers decreased significantly at 6-8 or 15-18 weeks postpartum. Significant differences in HBeAg levels between these groups were only found at delivery. Regulatory T cell (Treg) numbers in AF mothers were lower than those of NAF mothers before AVT; however, there were no significant differences in Treg numbers at other follow-up points. Expression of other T cell phenotypes were similar between the two groups. T cells in AF mothers produced more pro-inflammatory cytokines (IFN-γ, IL-21, TNF-α, IL-2) or less anti-inflammatory cytokine (IL-10) than those in NAF mothers before, during, or after antiviral treatment. The ratio of IFN-γ to IL-10 producing by CD4

conclusionsThe characteristics of T cell immunity was distinct between mothers with postpartum ALT flare and those without ALT flare from pregnancy to postpartum, which indicated that T cell immunity might get involved in postpartum ALT flare.

Indexed as

Hepatitis B, ChronicAlanine TransaminaseAntiviral AgentsCD8-Positive T-LymphocytesDNA, ViralFemaleHepatitis B e AntigensHepatitis B virusHumansMothersPostpartum PeriodPregnancyAlanine TransaminaseAntiviral AgentsDNA, ViralHepatitis B e AntigensAlanine transaminase flareHepatitis B virusPostpartumT cell immunity

Identifiers

PMID34488681
PMCPMC8422606
OpenAlexW3198417155

What OpenQuestion holds

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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.