Evidence map›Paper›PMID 26888665›Full record

ArticleBMC complementary and alternative medicine2016

Relationship between total phenolic contents and biological properties of propolis from 20 different regions in South Korea.

Xue Wang, Karuppasamy Sankarapandian, Yizhe Cheng, Soon Ok Woo, Hyung Wook Kwon, Haribalan Perumalsamy, Young-Joon Ahn

Open access · goldAbstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
9.9field-weighted citation impact, top 2% 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

27 citing papers in PubMed, 88 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

7 authors at 1 institution in 1 country.

Xue WangEntomology Major, Department of Agriculture Biotechnology, Seoul National University, Seoul, 151-921, South Korea.
Karuppasamy SankarapandianResearch Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, South Korea.
Yizhe ChengWCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, South Korea.
Soon Ok WooNational Academy of Agricultural Science, Rural Development Administration, Jeonju, 560-500, South Korea.
Hyung Wook KwonResearch Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, South Korea.
Haribalan PerumalsamyResearch Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, South Korea. harijai2004@gmail.com.
Young-Joon AhnWCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, South Korea. yjahn@snu.ac.kr.
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPropolis (or bee glue), collected from botanical sources by honey bee, has been used as a popular natural remedies in folk medicine throughout the world. This study was conducted to assess growth inhibitory effects of ethanol extracts of propolis (EEPs) from 20 different regions in South Korea on human intestinal bacteria as well as their human β-amyloid precursor cleavage enzyme (BACE-1), acetylcholinesterase (AChE) inhibitory, antioxidant, antiproliferative, and anti-human rhinovirus activities.

methodsThe Bonferroni multiple-comparison method was used to test for significant differences in total polyphenol and flavonoid contents among EEP samples using SAS 9.13 program. Correlation coefficient (r) analysis of the biological activities of EEP samples was determined using their 50 % inhibition concentration or minimal inhibitory concentration values and their polyphenol or flavonoid contents in 20 native Korean EEP samples.

resultsThe amounts of total polyphenol and flavonoids in the Korean EEP samples ranged from 49 to 239 mg gallic acid equivalent (GAE)/g EEP (Brazilian, Chinese, and Australian samples, 127-142 mg GAE/g EEP) and from 21 to 50 mg quercetin equivalent (QE)/g EEP (Brazilian, Chinese, and Australian samples, 33-53 mg QE/g EEP), respectively. Correlation coefficient analysis showed that total polyphenol contents may be negatively correlated with 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity (r = -0.872) and total flavonoid content has no correlation with the activity (r = 0.071). No direct correlation between BACE-1 inhibition, AChE inhibition, or antiproliferative activity and total polyphenol or total flavonoid content in Korean EEP samples was found. Gram-positive and Gram-negative bacteria were observed to have different degrees of antimicrobial susceptibility to the EEP samples examined, although ciprofloxacin susceptibility among the bacterial groups did not differ greatly.

conclusionsFurther studies will warrant possible applications of propolis as potential therapeutic BACE-1 blocker, antioxidant, antiproliferative agent, and antimicrobial agent.

Indexed as

AcetylcholinesteraseAnimalsAnti-Bacterial AgentsBeesCell Line, TumorCell ProliferationCholinesterase InhibitorsFlavonoidsFree Radical ScavengersHumansPhenolsPropolisRepublic of KoreaAcetylcholinesteraseAnti-Bacterial AgentsCholinesterase InhibitorsFlavonoidsFree Radical ScavengersPhenolsPropolis

Identifiers

PMID26888665
PMCPMC4758169
OpenAlexW2280596266

What OpenQuestion holds

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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.