Evidence map›Paper›PMID 28393188›Full record

ArticleInternational journal of molecular medicine2017

A heptameric peptide purified from Spirulina sp. gastrointestinal hydrolysate inhibits angiotensin I-converting enzyme- and angiotensin II-induced vascular dysfunction in human endothelial cells.

Seong-Yeong Heo, Seok-Chun Ko, Chang Su Kim, Gun-Woo Oh, Bomi Ryu, Zhong-Ji Qian, Geunhyung Kim, Won Sun Park, Il-Whan Choi, Thi Tuong Vy Phan and 4 more

Open access · hybridAbstract read
In one paragraph

Article in International journal of molecular medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed, 57 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

14 authors at 8 institutions in 3 countries.

Seong-Yeong HeoDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Seok-Chun KoDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Chang Su KimDepartment of Orthopedic Surgery, Kosin University Gospel Hospital, Busan 49267, Republic of Korea.
Gun-Woo OhDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Bomi RyuSchool of Pharmacy, The University of Queensland, Brisbane, QLD 4072, Australia.
Zhong-Ji QianCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524088, P.R. China.
Geunhyung KimDepartment of Bio-Mechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea.
Won Sun ParkDepartment of Physiology, Kangwon National University, School of Medicine, Chuncheon, Gangwon 24341, Republic of Korea.
Il-Whan ChoiDepartment of Microbiology, Inje University College of Medicine, Busan 47392, Republic of Korea.
Thi Tuong Vy PhanDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Soo-Jin HeoJeju International Marine Science Center for Research and Education, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea.
Do-Hyung KangJeju International Marine Science Center for Research and Education, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea.
Myunggi YiDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Won-Kyo JungDepartment of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 48513, Republic of Korea.
Pukyong National University · KRKorea Institute of Ocean Science and Technology · KRGuangdong Ocean University · CNInje University · KRKangwon National University · KRKosin University Gospel Hospital · KRSungkyunkwan University · KRUniversity of Queensland · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, a marine microalga Spirulina sp.-derived protein was hydrolyzed using gastrointestinal enzymes to produce an angiotensin I (Ang I)-converting enzyme (ACE) inhibitory peptide. Following consecutive purification, the potent ACE inhibitory peptide was composed of 7 amino acids, Thr-Met‑Glu‑Pro‑Gly‑Lys-Pro (molecular weight, 759 Da). Analysis using the Lineweaver-Burk plot and molecular modeling suggested that the purified peptide acted as a mixed non-competitive inhibitor of ACE. The inhibitory effects of the peptide against the cellular production of vascular dysfunction-related factors induced by Ang II were also investigated. In human endothelial cells, the Ang II-induced production of nitric oxide and reactive oxygen species was inhibited, and the expression of inducible nitric oxide synthase (iNOS) and endothelin-1 (ET-1) was downregulated when the cells were cultured with the purified peptide. Moreover, the peptide blocked the activation of p38 mitogen‑activated protein kinase. These results indicated that this Spirulina sp.-derived peptide warrants further investigation as a potential pharmacological inhibitor of ACE and vascular dysfunction.

Indexed as

SpirulinaAmino Acid SequenceAngiotensin-Converting Enzyme InhibitorsAngiotensin IIBinding SitesBlood VesselsEndothelial CellsGastrointestinal TractHumansHydrolysisMitogen-Activated Protein KinasesModels, MolecularMolecular WeightNitric OxidePeptidesPeptidyl-Dipeptidase AAngiotensin-Converting Enzyme InhibitorsAngiotensin IIMitogen-Activated Protein KinasesNitric OxidePeptidesPeptidyl-Dipeptidase AReactive Oxygen Species

Identifiers

PMID28393188
PMCPMC5403476
OpenAlexW2604862991

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.