Evidence map›Paper›PMID 30682142›Full record

ArticlePloS one2019

Antiparasitic activities of hydroethanolic extracts of Ipomoea imperati (Vahl) Griseb. (Convolvulaceae).

Ana Cássia M Araujo, Eduardo B Almeida, Cláudia Q Rocha, Aldilene S Lima, Carolina R Silva, Marcelo M P Tangerina, José S Lima Neto, Lívio M Costa-Junior

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Antibiotics (Basel, Switzerland) · 2025
    Article
  4. The Anti-Virulence Effect ofAntibiotics (Basel, Switzerland) · 2022
    Article
  5. 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

8 authors.

Ana Cássia M AraujoPrograma de Pós-Graduação em Biodiversidade e Conservação, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
Eduardo B AlmeidaDepartamento de Biologia, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
Cláudia Q RochaDepartamento de Química, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
Aldilene S LimaDepartamento de Química, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
Carolina R SilvaDepartamento de Patologia, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.
Marcelo M P TangerinaLaboratório de Bioprospecção de Produtos Naturais, Instituto de Biociências, Universidade Estadual Paulista, São Vicente, São Paulo, Brazil.ORCID 0000-0002-4236-094X
José S Lima NetoUniversidade Federal do Piauí, Departamento de Farmácia, Laboratório de Geoquímica Orgânica, Teresina, Piauí, Brazil.
Lívio M Costa-JuniorDepartamento de Patologia, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil.ORCID 0000-0002-1475-049X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ipomoea imperati is widely used in tropical areas to treat several pathological conditions. The effect of this plant against parasitic species has not been investigated even being used for this purpose in the Brazilian northeastern. This study aimed to evaluate the anthelmintic and acaricide potential of a hydroethanolic extract of I. imperati leaves and stolons. I. imperati leaves and stolons were crushed and subjected to maceration in ethanol 70% (v/v), after which the solvent was removed using a rotary evaporator. The chromatographic profile of the extract was obtained by UV Spectrum high-performance liquid chromatography and compounds were identified by liquid chromatography/electrospray ionization tandem mass spectrometry. Identification of the compounds present in the extract was achieved by comparing their retention times and UV spectra with data in the literature. Anthelmintic activity was evaluated by larval exsheathment inhibition assays using Haemonchus contortus larvae and five concentrations of each extract ranging from 0.07 to 1.2 mg/mL. Acaricide activity was evaluated via larval immersion of Rhipicephalus microplus in eight concentrations of each extract ranging from 5.0 to 25.0 mg/mL. Live and dead larvae were counted after 24 hours. The median inhibitory concentration (IC50) for H. contortus larvae and the median lethal concentration (LC50) for R. microplus larvae were calculated. Twelve compounds were observed in the hydroethanolic extract of leaves, with a predominance of the aglycone form of flavonoids and tannins. This extract was effective against H. contortus larvae, presenting an average inhibitory concentration of 0.22 mg/mL, but showed no activity toward R. microplus larvae. The stolon hydroethanolic extract presented 11 compounds, with phenolic acids and glycosylated flavonoids prevailing. This extract showed low activity on R. microplus and no effect on inhibiting H. contortus larval exsheathment at the concentrations tested. This study is the first to assess the anthelmintic and acaricidal activities of I. imperati. Data reported confirm promising potential of I. imperati leaves hydroethanolic extract against H. contortus. This effect could be due to its secondary compounds presents in this extract, such as procyanidin, kaempferol, isoquercitrin and rutin.

Indexed as

AnimalsAnthelminticsChromatography, High Pressure LiquidFlavonoidsHaemonchusIpomoeaLarvaPlant ExtractsPlant LeavesPlant StemsRhipicephalusSpectrometry, Mass, Electrospray IonizationTanninsAnthelminticsFlavonoidsPlant ExtractsTannins

Identifiers

PMID30682142
PMCPMC6347238

What OpenQuestion holds

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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.