Evidence map›Paper›PMID 21985312›Full record

ArticleJournal of enzyme inhibition and medicinal chemistry2012

Ionic derivatives of betulinic acid as novel HIV-1 protease inhibitors.

Hua Zhao, Shaletha S Holmes, Gary A Baker, Suresh Challa, Himangshu S Bose, Zhiyan Song

Open access · bronzeAbstract read
In one paragraph

Article in Journal of enzyme inhibition and medicinal chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

14 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
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  6. Review
  7. Article
  8. Review
  9. Review
  10. Antiviral Activities of Oleanolic Acid and Its Analogues.Molecules (Basel, Switzerland) · 2018
    Review
  11. Effect of betulinic acid and its ionic derivatives on M-MuLV replication.Biochemical and biophysical research communications · 2018
    Article
  12. Review
  13. Article
  14. 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

6 authors at 3 institutions in 2 countries.

Hua ZhaoDepartment of Natural Sciences, Savannah State University, Savannah, GA 31404, USA. huazhao98@gmail.com
Shaletha S Holmes
Gary A Baker
Suresh Challa
Himangshu S Bose
Zhiyan Song
Savannah State University · USMercer University · USUniversity of Missouri · US

Funding

Strengthening Research Collaborations in Health DisparitiesP20MD003941 · NIMHD · SAVANNAH STATE UNIVERSITY · PI DOZIER, CHERYL DAVENPORT · 2009 to 2013
$3.8M
NIMHD NIH HHS 5P20MD003941NIMHD NIH HHS P20 MD003941
6 · The paper itself

Abstract

Betulinic acid is a natural product possessing abundant and favourable biological activity, including anti-cancer, anti-malarial, anti-inflammatory and anti-HIV properties, while causing minimal toxicity to unaffected cells. The full biological potency of betulinic acid cannot be fully unlocked, however, for a number of reasons, a primary one being its limited solubility in aqueous and biologically pertinent organic media. Aiming to improve the water solubility of betulinic acid without disrupting its structurally related bioactivity, we have prepared different ionic derivatives of betulinic acid. Inhibition bioassays on HIV-1 protease-catalysed peptide hydrolysis indicate significantly improved performance resulting from converting the betulinic acid to organic salt form. Indeed, for one particular cholinium-based derivative, its water solubility is improved more than 100 times and the half maximal inhibitory concentration (IC(50)) value (22 μg mL(-1)) was one-third that of wide-type betulinic acid (60 μg mL(-1)). These encouraging results advise that additional studies of ionic betulinic acid derivatives as a therapeutic solution against HIV-1 infection are warranted.

Indexed as

Betulinic AcidCatalysisGlycineHIV ProteaseHIV Protease InhibitorsHydrolysisIonsMagnetic Resonance SpectroscopyPentacyclic TriterpenesSolubilityTriterpenesBetulinic AcidGlycineHIV ProteaseHIV Protease InhibitorsIonsp16 protease, Human immunodeficiency virus 1Pentacyclic TriterpenesTriterpenes

Identifiers

PMID21985312
PMCPMC3438379
OpenAlexW2049741348

What OpenQuestion holds

Textmetadata
LicenceTDM
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.