Evidence map›Paper›PMID 30813425›Full record

ArticleInternational journal of molecular sciences2019

Synthesis, Spectroscopic Study and Radical Scavenging Activity of Kaempferol Derivatives: Enhanced Water Solubility and Antioxidant Activity.

Sui-Ping Deng, Yi-Li Yang, Xing-Xing Cheng, Wen-Rong Li, Ji-Ye Cai

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Effects ofAntioxidants (Basel, Switzerland) · 2024
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Frontiers in pharmacology · 2023
    Review
  14. Article
  15. Article
  16. The Physical Chemistry and Chemical Physics (PCCP) Section of theInternational journal of molecular sciences · 2021
    Article
  17. Review
  18. Article
  19. Review
  20. 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

5 authors.

Sui-Ping DengDepartment of Chemistry, Jinan University, Guangzhou 510632, China. tspdeng@jnu.edu.cn.
Yi-Li YangDepartment of Chemistry, Jinan University, Guangzhou 510632, China. yyl0420@stu2016.jnu.edu.cn.
Xing-Xing ChengDepartment of Chemistry, Jinan University, Guangzhou 510632, China. 17817717548@stu2016.jnu.edu.cn.
Wen-Rong LiDepartment of Chemistry, Jinan University, Guangzhou 510632, China. 18312736162@163.com.
Ji-Ye CaiDepartment of Chemistry, Jinan University, Guangzhou 510632, China. tjycai@jnu.edu.cn.

Funding

Foundation for Distinguished Young Talents in Higher Education of Guangdong, China No. LYM11020Guangdong Natural Science Foundation, China No. 2016A030313078Macau Science and Technology Development Fund No. 028/2014/A1the Fundamental Research Funds for the Central Universities, China No. 21617430
6 · The paper itself

Abstract

Kaempferol (Kae) is a natural flavonoid with potent antioxidant activity, but its therapeutic use is limited by its low aqueous solubility. Here, a series of Kae derivatives were synthesized to improve Kae dissolution property in water and antioxidant activity. These compounds included sulfonated Kae (Kae-SO₃), gallium (Ga) complexes with Kae (Kae-Ga) and Kae-SO₃ (Kae-SO₃-Ga). The compound structures were characterized by high-resolution mass spectrometry (HRMS), nuclear magnetic resonance (NMR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and thermal methods (TG/DSC). The results showed that a sulfonic group (-SO₃) was successfully tethered on the C3' of Kae to form Kae-SO₃. And in the metal complexation, 4-CO and 3-OH of the ligand participated in the coordination with Ga(III). The metal-to-ligand ratio 1:2 was suggested for both complexes. Interestingly, Kae-SO₃-Ga was obviously superior to other compounds in terms of overcoming the poor water-solubility of free Kae, and the solubility of Kae-SO₃-Ga was about 300-fold higher than that of Kae-Ga. Furthermore, the evaluation of antioxidant activities in vitro was carried out for Kae derivatives by using α,α-diphenyl-β-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzo-thiazoline-6-sulfonic acid) diammonium salt (ABTS) free radical scavenging. The results showed that Kae-SO₃-Ga was also optimal for scavenging free radicals in a dose-dependent manner. These data demonstrate that sulfonate kaempferol-gallium complex has a promising future as a potential antioxidant and as a potential therapeutic agent for further biomedical studies.

Indexed as

AntioxidantsBiphenyl CompoundsCalorimetry, Differential ScanningCarbon-13 Magnetic Resonance SpectroscopyFree Radical ScavengersKaempferolsMass SpectrometryPicratesProton Magnetic Resonance SpectroscopySolubilitySpectrophotometry, UltravioletSpectroscopy, Fourier Transform InfraredSulfonic AcidsTemperatureThermogravimetryWater1,1-diphenyl-2-picrylhydrazylAntioxidantsBiphenyl CompoundsFree Radical ScavengerskaempferolKaempferolsPicratesSulfonic AcidsWaterantioxidant activityflavonoidgallium complexkaempferolwater solubility

Identifiers

PMID30813425
PMCPMC6412309

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.