Evidence map›Paper›PMID 25140307›Full record

ArticleBioMed research international2014

Angiotensin I-converting enzyme inhibitor derived from cross-linked oyster protein.

Cheng-Liang Xie, Jin-Soo Kim, Jong-Myung Ha, Se-Young Choung, Yeung-Joon Choi

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. 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

5 authors at 3 institutions in 1 country.

Cheng-Liang XieDepartment of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University, Gyeongnam-do 650-160, Republic of Korea.
Jin-Soo KimDepartment of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University, Gyeongnam-do 650-160, Republic of Korea.
Jong-Myung HaDepartment of Pharmaceutical Engineering, College of Medical and Life Science, Silla University, Busan 617-736, Republic of Korea.
Se-Young ChoungDepartment of Hygienic Chemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea.
Yeung-Joon ChoiDepartment of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University, Gyeongnam-do 650-160, Republic of Korea.ORCID 0000-0002-5124-4991
Gyeongsang National University · KRKyung Hee University · KRSilla University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Following cross-linking by microbial transglutaminase, modified oyster proteins were hydrolyzed to improve inhibitory activity against angiotensin-converting enzyme (ACE) inhibitory activity with the use of a single protease, or a combination of six proteases. The oyster hydrolysate with the lowest 50% ACE inhibitory concentration (IC50) of 0.40 mg/mL was obtained by two-step hydrolysis of the cross-linked oyster protein using Protamex and Neutrase. Five ACE inhibitory peptides were purified from the oyster hydrolysate using a multistep chromatographic procedure comprised of ion-exchange, size exclusion, and reversed-phase liquid chromatography. Their sequences were identified as TAY, VK, KY, FYN, and YA, using automated Edman degradation and mass spectrometry. These peptides were synthesized, and their IC50 values were measured to be 16.7, 29.0, 51.5, 68.2, and 93.9 μM, respectively. Toxicity of the peptides on the HepG2 cell line was not detected. The oyster hydrolysate also significantly decreased the systolic blood pressure of spontaneously hypertensive rats (SHR). The antihypertensive effect of the oyster hydrolysate on SHR was rapid and long-lasting, compared to commercially obtained sardine hydrolysate. These results suggest that the oyster hydrolysate could be a source of effective nutraceuticals against hypertension.

Indexed as

Angiotensin-Converting Enzyme InhibitorsAnimalsBlood PressureHep G2 CellsHumansHypertensionOstreidaePeptidesPeptidyl-Dipeptidase ARatsAngiotensin-Converting Enzyme InhibitorsPeptidesPeptidyl-Dipeptidase A

Identifiers

PMID25140307
PMCPMC4130196
OpenAlexW2097903382

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.