Evidence map›Paper›PMID 33125128›Full record

ArticleInternational journal of molecular medicine2020

Antihypertensive activity of oleanolic acid is mediated via downregulation of secretory phospholipase A2 and fatty acid synthase in spontaneously hypertensive rats.

Shiming Zhang, Yuecheng Liu, Xiaoming Wang, Zhenhua Tian, Dongmei Qi, Yunlun Li, Haiqiang Jiang

Open access · hybridAbstract read
In one paragraph

Article in International journal of molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Metabolites · 2025
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  5. Review
  6. Plant In Vitro Culture Factories for Pentacyclic Triterpenoid Production.Advances in biochemical engineering/biotechnology · 2024
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
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 1 institution in 1 country.

Shiming ZhangExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Yuecheng LiuKey Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Xiaoming WangExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Zhenhua TianExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Dongmei QiExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Yunlun LiExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Haiqiang JiangExperimental Centre, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.
Shandong University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oleanolic acid (OA) is reported to possess antihypertensive activity via the regulation of lipid metabolism; however, the mechanisms underlying lipid regulation by OA are yet to be fully elucidated. The aim of the present study was to evaluate the mechanisms via which OA regulates lipid metabolism in spontaneously hypertensive rats (SHRs) via ultra‑performance liquid chromatography‑quadrupole/Orbitrap‑mass spectrometry (MS)‑based lipidomics analysis. SHRs were treated with OA (1.08 mg/kg) for 4 weeks. The liver tissues were excised, homogenized in dichloromethane and centrifuged, and subsequently the supernatant layer was collected and concentrated under vacuum to dryness. The dichloromethane extract was subjected to MS analysis and database searching, and comparison of standards was performed to identify potential biomarkers. Partial least squares‑discriminant analysis performed on the liver lipidome revealed a total of 14 endogenous metabolites that were significantly changed in the SHR model group (SH group) compared with Wistar Kyoto rats [normal control (NC group)], including glycerophospholipids, sphingolipids and glycerides. Heatmaps revealed that the liver lipid profiles in the OA group were clustered more closely compared with those observed in the NC group, indicating that the antihypertensive effect of OA was mediated via regulation of liver lipid metabolites. It was observed that the protein levels of secretory phospholipase A2 (sPLA2) and fatty acid synthase (FAS) were increased in the SH group compared with the NC group. In addition, the levels of lysophosphatidylcholine and triglycerides in the liver were elevated, whereas the levels of low‑density lipoprotein cholesterol and high‑density lipoprotein cholesterol were reduced in the SH group. Upon treatment with OA, the mRNA and protein levels of PLA2 and FAS were observed to be downregulated. Collectively, the present study indicated that the antihypertensive activity of OA was mediated via downregulation of sPLA2 and FAS in SHRs, and that treatment with OA resulted in significant improvements in blood pressure and associated abnormalities in the lipid metabolites.

Indexed as

AnimalsAntihypertensive AgentsBiomarkersDiastoleDiscriminant AnalysisDown-RegulationFatty Acid SynthasesHypertensionLeast-Squares AnalysisLipidomicsLipidsLiverMaleMetabolic Networks and PathwaysMetabolomeMultivariate AnalysisAntihypertensive AgentsBiomarkersFatty Acid SynthasesLipidsOleanolic AcidPhospholipases A2, Secretory

Identifiers

PMID33125128
PMCPMC7595669
OpenAlexW3090154038

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.