Evidence map›Paper›PMID 25144734›Full record

ArticlePloS one2014

Identification of a novel hypocholesterolemic protein, major royal jelly protein 1, derived from royal jelly.

Yuri Kashima, Satoshi Kanematsu, Saori Asai, Mio Kusada, Suzuyo Watanabe, Takuji Kawashima, Tadashi Nakamura, Masaya Shimada, Tsuyoshi Goto, Satoshi Nagaoka

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 12% 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, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The potential of bee products in clinical trials focused on the side effects of radiotherapy and chemotherapy used for cancer treatment.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Review
  4. Review
  5. Hepatoprotective effect of royal jelly on dibutyl phthalate-induced liver injury in rats.Veterinary research forum : an international quarterly journal · 2025
    Article
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  7. Royal Jelly: Biological Action and Health Benefits.International journal of molecular sciences · 2024
    Review
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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

10 authors at 1 institution in 1 country.

Yuri KashimaAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Satoshi KanematsuAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Saori AsaiAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Mio KusadaDepartment of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan.
Suzuyo WatanabeAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Takuji KawashimaAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Tadashi NakamuraAkitaya Honten Co., Ltd., Kano, Gifu, Japan.
Masaya ShimadaDepartment of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan.
Tsuyoshi GotoDepartment of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan.
Satoshi NagaokaDepartment of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan.
Gifu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Royal jelly (RJ) intake lowers serum cholesterol levels in animals and humans, but the active component in RJ that lowers serum cholesterol level and its molecular mechanism are unclear. In this study, we set out to identify the bile acid-binding protein contained in RJ, because dietary bile acid-binding proteins including soybean protein and its peptide are effective in ameliorating hypercholesterolemia. Using a cholic acid-conjugated column, we separated some bile acid-binding proteins from RJ and identified the major RJ protein 1 (MRJP1), MRJP2, and MRJP3 as novel bile acid-binding proteins from RJ, based on matrix-assisted laser desorption ionization time-of-flight mass spectrometry. Purified MRJP1, which is the most abundant protein of the bile acid-binding proteins in RJ, exhibited taurocholate-binding activity in vitro. The micellar solubility of cholesterol was significantly decreased in the presence of MRJP1 compared with casein in vitro. Liver bile acids levels were significantly increased, and cholesterol 7α-hydroxylase (CYP7A1) mRNA and protein tended to increase by MRJP1 feeding compared with the control. CYP7A1 mRNA and protein levels were significantly increased by MRJP1 tryptic hydrolysate treatment compared with that of casein tryptic hydrolysate in hepatocytes. MRJP1 hypocholesterolemic effect has been investigated in rats. The cholesterol-lowering action induced by MRJP1 occurs because MRJP1 interacts with bile acids induces a significant increase in fecal bile acids excretion and a tendency to increase in fecal cholesterol excretion and also enhances the hepatic cholesterol catabolism. We have identified, for the first time, a novel hypocholesterolemic protein, MRJP1, in RJ. Interestingly, MRJP1 exhibits greater hypocholesterolemic activity than the medicine β-sitosterol in rats.

Indexed as

AnimalsBlotting, WesternCaco-2 CellsCaseinsCholesterolChromatography, GelElectrophoresis, Polyacrylamide GelFatty AcidsGlycoproteinsHep G2 CellsHumansInsect ProteinsLiverRatsRoyal JellySitosterolsCaseinsCholesterolFatty Acidsgamma-sitosterolGlycoproteinsInsect ProteinsMRJP1 protein, Apis melliferaRoyal JellySitosterols

Identifiers

PMID25144734
PMCPMC4140749
OpenAlexW2022223920

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.