Evidence map›Paper›PMID 34764635›Full record

ArticleDrug design, development and therapy2021

Artemisinin Improves Acetylcholine-Induced Vasodilatation in Rats with Primary Hypertension.

Xuanxuan Liu, Xingxing Wang, Yan Pan, Li Zhao, Shuo Sun, Ang Luo, Changlei Bao, Haiyang Tang, Ying Han

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. METTL3 mediates mJournal of advanced research · 2026
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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 4 institutions in 1 country.

Xuanxuan LiuKey Laboratory of Targeted Intervention for Cardiovascular Disease, Collaborative Innovation Center of Translational Medicine for Cardiovascular Disease, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
Xingxing WangKey Laboratory of Targeted Intervention for Cardiovascular Disease, Collaborative Innovation Center of Translational Medicine for Cardiovascular Disease, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
Yan PanKey Laboratory of Targeted Intervention for Cardiovascular Disease, Collaborative Innovation Center of Translational Medicine for Cardiovascular Disease, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
Li ZhaoCollege of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
Shuo SunKey Laboratory of Targeted Intervention for Cardiovascular Disease, Collaborative Innovation Center of Translational Medicine for Cardiovascular Disease, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
Ang LuoCollege of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
Changlei BaoCollege of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
Haiyang TangCollege of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.ORCID 0000-0001-9537-2891
Ying HanKey Laboratory of Targeted Intervention for Cardiovascular Disease, Collaborative Innovation Center of Translational Medicine for Cardiovascular Disease, Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.ORCID 0000-0001-8591-7894
Nanjing Medical University · CNFirst Affiliated Hospital of Guangzhou Medical University · CNNorthwest A&F University · CNKangda College of Nanjing Medical University

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEndothelial dysfunction and the subsequent decrease in endothelium-dependent vascular relaxation of small arteries are major features of hypertension. Artemisinin, a well-known antimalarial drug, has been shown to exert protecting roles against endothelial cell injury in cardiac and pulmonary vascular diseases. The current study aimed to investigate the effects of artemisinin on endothelium-dependent vascular relaxation and arterial blood pressure, as well as the potential signalling pathways in spontaneously hypertensive rats (SHRs).

methodsIn this study, acetylcholine (ACh)-induced dose-dependent relaxation assays were performed to evaluate vascular endothelial function after treatment with artemisinin. Artemisinin was administered to the rats by intravenous injection or to arteries by incubation for the acute exposure experiments, and it was administered to rats by intraperitoneal injection for 28 days for the chronic experiments.

resultsBoth acute and chronic administration of artemisinin decreased the heart rate and improved ACh-induced endothelium-dependent relaxation but negligibly affected the arterial blood pressure in SHRs. Incubation with artemisinin decreased basal vascular tension, NAD(P)H oxidase activity and reactive oxygen species (ROS) levels, but it also increased endothelial nitric oxide (NO) synthase (eNOS) activity and NO levels in the mesenteric artery, coronary artery, and pulmonary artery of SHRs. Artemisinin chronic administration to SHRs increased the protein expression of eNOS and decreased the protein expression of the NAD(P)H oxidase subunits NOX-2 and NOX-4 in the mesenteric artery.

conclusionThese results indicate that treatment with artemisinin has beneficial effects on reducing the heart rate and basal vascular tension and improving endothelium-dependent vascular relaxation in hypertension, which might occur by increasing eNOS activation and NO release and inhibiting NAD(P)H oxidase derived ROS production.

Indexed as

AcetylcholineAnimalsArtemisininsBlood PressureDose-Response Relationship, DrugEndothelium, VascularHeart RateHypertensionInjections, IntraperitonealInjections, IntravenousMaleNitric OxideNitric Oxide Synthase Type IIIRatsRats, Inbred SHRRats, Inbred WKYAcetylcholineartemisininArtemisininsNitric OxideNitric Oxide Synthase Type IIINos3 protein, ratReactive Oxygen SpeciesVasodilator Agentsartemisininhypertensionnitric oxidereactive oxygen speciesvascular function

Identifiers

PMID34764635
PMCPMC8576437
OpenAlexW3208434342

What OpenQuestion holds

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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 OpenQuestion graph.