Evidence map›Paper›PMID 27447599›Full record

ArticleMolecules (Basel, Switzerland)2016

Quantitative Determination of Alkaloids in Lotus Flower (Flower Buds of Nelumbo nucifera) and Their Melanogenesis Inhibitory Activity.

Toshio Morikawa, Niichiro Kitagawa, Genzoh Tanabe, Kiyofumi Ninomiya, Shuhei Okugawa, Chiaki Motai, Iyori Kamei, Masayuki Yoshikawa, I-Jung Lee, Osamu Muraoka

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  4. Review
  5. Skin-Whitening Effect of a Callus Extract ofPlants (Basel, Switzerland) · 2023
    Article
  6. Article
  7. Article
  8. Lotus (Cancers · 2022
    Review
  9. Review
  10. Article
  11. Isolation and characterization of twoThe Journal of biological chemistry · 2020
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
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 2 institutions in 2 countries.

Toshio MorikawaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. morikawa@kindai.ac.jp.
Niichiro KitagawaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. kitagawa@koshiroseiyaku.co.jp.
Genzoh TanabeFaculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. g-tanabe@phar.kindai.ac.jp.
Kiyofumi NinomiyaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. ninomiya@phar.kindai.ac.jp.
Shuhei OkugawaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. okugawa_kameokanousan@koshiroseiyaku.co.jp.
Chiaki MotaiPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. motai@koshiroseiyaku.co.jp.
Iyori KameiPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. i.regretful.168.strike-swallow@docomo.ne.jp.
Masayuki YoshikawaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. m-yoshikawa@leto.eonet.ne.jp.
I-Jung LeeNational Research Institute of Chinese Medicine, 155-1, Sec. 2, Linong St., Beitou District, Taipei 11221, Taiwan. lily@nricm.edu.tw.
Osamu MuraokaPharmaceutical Research and Technology Institute, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan. muraoka@phar.kindai.ac.jp.
Kindai University · JPNational Research Institute of Chinese Medicine · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A quantitative analytical method for five aporphine alkaloids, nuciferine (1), nornuciferine (2), N-methylasimilobine (3), asimilobine (4), and pronuciferine (5), and five benzylisoquinoline alkaloids, armepavine (6), norarmepavine (7), N-methylcoclaurine (8), coclaurine (9), and norjuziphine (10), identified as the constituents responsible for the melanogenesis inhibitory activity of the extracts of lotus flowers (the flower buds of Nelumbo nucifera), has been developed using liquid chromatography-mass spectrometry. The optimum conditions for separation and detection of these 10 alkaloids were achieved on a πNAP column, a reversed-phase column with naphthylethyl group-bonded silica packing material, with CH₃CN-0.2% aqueous acetic acid as the mobile phase and using mass spectrometry equipped with a positive-mode electrospray ionization source. According to the protocol established, distributions of these 10 alkaloids in the petal, receptacle, and stamen parts, which were separated from the whole flower, were examined. As expected, excellent correlations were observed between the total alkaloid content and melanogenesis inhibitory activity. Among the active alkaloids, nornuciferine (2) was found to give a carbamate salt (2'') via formation of an unstable carbamic acid (2') by absorption of carbon dioxide from the air.

Indexed as

AlkaloidsAnimalsCarbamatesCell Line, TumorChromatography, LiquidEnzyme ActivationFlowersHumansLotusMagnetic Resonance SpectroscopyMass SpectrometryMelaninsMelanoma, ExperimentalMiceMonophenol MonooxygenasePlant ExtractsAlkaloidsCarbamatescarbamic acidMelaninsMonophenol MonooxygenasePlant Extractscarbamate saltlotus flowermelanogenesis inhibitorNelumbo nuciferanornuciferinenuciferinequantitative analysis

Identifiers

PMID27447599
PMCPMC6272935
OpenAlexW2502078709

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.