Evidence map›Paper›PMID 33111756›Full record

ArticleMemorias do Instituto Oswaldo Cruz2020

Ultrastructural and proapoptotic-like effects of kaempferol in Giardia duodenalis trophozoites and bioinformatics prediction of its potential protein target.

Raúl Argüello-García, Fernando Calzada, Normand García-Hernández, Bibiana Chávez-Munguía, José Antonio Velázquez-Domínguez

Open access · diamondAbstract read
In one paragraph

Article in Memorias do Instituto Oswaldo Cruz, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Kaempferol activity onPharmaceutical biology · 2026
    Article
  2. Article
  3. Advances in pharmacological and pharmaceutical sciences · 2026
    Article
  4. Review
  5. Cytotoxic effects of ivermectin onFrontiers in microbiology · 2024
    Article
  6. Linearolactone Induces Necrotic-like Death inPharmaceuticals (Basel, Switzerland) · 2022
    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 at 3 institutions in 1 country.

Raúl Argüello-GarcíaCentro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Departamento de Genética y Biología Molecular, Ciudad de México, México.
Fernando CalzadaCentro Médico Nacional Siglo XXI, Unidad Médica de Alta Especialidad, Unidad de Investigación Médica en Farmacología, Ciudad de México, México.
Normand García-HernándezInstituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Unidad Médica de Alta Especialidad, Hospital de Pediatría, Unidad de Investigación Médica en Genética Humana, Ciudad de México, México.
Bibiana Chávez-MunguíaCentro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional, Departamento de Infectómica y Patogénesis Molecular, Ciudad de México, México.
José Antonio Velázquez-DomínguezInstituto Politécnico Nacional, Escuela Nacional de Medicina y Homeopatía, Ciudad de México, México.ORCID http://orcid.org/0000-0003-4504-8166
Instituto Politécnico Nacional · MXCentro Medico Nacional Siglo XXI · MXMexican Social Security Institute · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundKaempferol (KPF) is a flavonoid with antiparasitic activity including experimental giardiasis which mechanism of action is unknown.

objectiveTo analyse the cytotoxic effects of KPF on Giardia duodenalis trophozoites and to identify a likely parasite target of this compound.

methodsWe used inhibitory concentrations of KPF (IC25, IC50 and IC100) and albendazole (ABZ) as reference drug. The ultrastructure of the trophozoites was analysed by transmission electron microscopy (TEM) whilst apoptosis/necrosis, production of reactive oxygen species (ROS) and cell cycle progression were assessed by flow cytometry (FCM) and confocal laser microscopy (CLM). Ligand-protein docking analyses were carried out using KPF structure from a drug library and crystal structure of a G. duodenalis aldose reductase (GdAldRed) homolog.

resultsKPF provoked appearance of perinuclear and periplasmic spaces devoid of cytosolic content and multilamellar structures. KPF induced proapoptotic death associated with partial arrest in the S phase without ROS production. Bioinformatics approaches predicted that GdAldRed is a viable KPF target (ΔG = -7.09 kCal/mol), exhibiting 92% structural identity and a similar coupling pattern as its human homolog.

conclusionsKPF exerted a proapoptotic effect on G. duodenalis trophozoites involving partial interruption of DNA synthesis without oxidative stress or structure damage to chromatin and cytoskeletal structures. GdAldRed is a likely target underlying its antigiardial activity.

Indexed as

Giardia lambliaGiardiasisKaempferolsAnimalsComputational BiologyHumansTrophozoitesKaempferols

Identifiers

PMID33111756
PMCPMC7577037
OpenAlexW3093757416

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.