Evidence map›Paper›PMID 32671438›Full record

ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2020

Protocatechuic acid supplement alleviates allergic airway inflammation by inhibiting the IL-4Rα-STAT6 and Jagged 1/Jagged2-Notch1/Notch2 pathways in allergic asthmatic mice.

Qin Li, Yinfan Wu, Xingyue Guo, Ren Wang, Yuheng Mao, Yimin Zhao, Jinchao Zou, Chunwei Li, Yanqiu Chen, Yan Yang

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In one paragraph

Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 13 citations in OpenAlex.

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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

10 authors at 4 institutions in 2 countries.

Qin LiGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Yinfan WuGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Xingyue GuoGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Ren WangAgriculture Life and Environmental Science, University of Alberta, Edmonton, Canada.
Yuheng MaoGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Yimin ZhaoGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Jinchao ZouGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China.
Chunwei LiGuangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Yanqiu ChenDepartment of Otolaryngology, Guangzhou Women and Children Medical Centre, Guangzhou, China. chenyq2014@163.com.
Yan YangGuangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University (Guangzhou Campus), Guangzhou, China. yangyan3@mail.sysu.edu.cn.ORCID http://orcid.org/0000-0002-1125-4159
Sun Yat-sen University · CNGuangdong University of Technology · CNGuangzhou Women and Children Medical Center · CNUniversity of Alberta · CA

Funding

Guangzhou Science and Technology Program 201804020045National Natural Science Foundation of China 81573145National Natural Science Foundation of China 81730090Shenzhen Science and Technology Innovation Commission 201803073000433the Laboratory Open Found of Sun Yat-sen University 20180278
6 · The paper itself

Abstract

OBJECTIVE AND

designTo clarify the effects of dietary supplementation of protocatechuic acid (PCA) and in-depth mechanisms on allergic asthma in ovalbumin (OVA)-induced mice. MATERIALS: Female BALB/c mice were randomly divided into three groups (n = 10 in each group): control group, OVA-induced allergic asthma group, and OVA plus PCA group. TREATMENT: Dietary supplementation of PCA was achieved by adding 50 mg/kg PCA to AIN 93G diet for 25 days.

methodsPeripheral blood cells, pulmonary inflammatory cell infiltration, the levels of IL-4, IL-5, and IL-13 in bronchoalveolar lavage fluid (BALF), the mRNA levels of Th2-related genes in the lungs, and the protein expressions of the IL-4Rα-STAT6 and the Jagged1/Jagged2-Notch1/Notch2 signaling pathways were measured.

resultsSignificantly reduced inflammatory cells infiltration and mucosal hypersecretion in the lung tissues, repaired levels of interleukin IL-4, IL-5, and IL-13 in the BALF, and decreased mRNA expression of IL-4, IL-5, and GATA3 were observed in OVA plus PCA group. Moreover, PCA treatment down-regulated the protein levels of IL-4Rα-STAT6 and Jagged1/Jagged2-Notch1/Notch2 signaling pathways.

conclusionsDietary supplement of PCA alleviated allergic asthma partly through suppressing the IL-4Rα-STAT6 and Jagged1/Jagged2-Notch1/Notch2 signaling pathways in mice. Our study provided the theoretic basis of PCA used as functional food in preventing allergic asthma.

Indexed as

Dietary SupplementsAllergensAnimalsAsthmaBronchoalveolar Lavage FluidCytokinesFemaleFunctional FoodHydroxybenzoatesInterleukin-4 Receptor alpha SubunitJagged-1 ProteinJagged-2 ProteinLeukocyte CountLungMice, Inbred BALB COvalbuminAllergensCytokinesHydroxybenzoatesIl4ra protein, mouseInterleukin-4 Receptor alpha SubunitJagged-1 ProteinJagged-2 ProteinNotch1 protein, mouseNotch2 protein, mouseOvalbuminprotocatechuic acidReceptor, Notch1Receptor, Notch2Receptors, Cell SurfaceStat6 protein, mouseSTAT6 Transcription FactorAirway inflammationAllergic asthmaNotchProtocatechuic acidSTAT6Th2 response

Identifiers

PMID32671438
OpenAlexW3043225827

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.