Evidence map›Paper›PMID 24548728›Full record

ArticleBMC complementary and alternative medicine2014

In vitro metabolism studies of erythraline, the major spiroalkaloid from Erythrina verna.

Thais Guaratini, Denise Brentan Silva, Aline Cavalli Bizaro, Lucas Rossi Sartori, Hans-Ulrich Humpf, Norberto Peporine Lopes, Letícia Veras Costa-Lotufo, João Luis Callegari Lopes

Open access · goldAbstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2014. 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
0.4field-weighted citation impact, top 36% 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

5 citing papers in PubMed, 17 citations in OpenAlex.

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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 at 5 institutions in 2 countries.

Thais Guaratini
Denise Brentan Silva
Aline Cavalli Bizaro
Lucas Rossi Sartori
Hans-Ulrich Humpf
Norberto Peporine Lopes
Letícia Veras Costa-Lotufo
João Luis Callegari LopesNúcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Av, Café s/nº, 14040-903 Ribeirão Preto, SP, Brazil. joaoluis@usp.br.
Lychnoflora (Brazil) · BRUniversidade de Ribeirão Preto · BRUniversity of Münster · DEUniversidade de São Paulo · BRUniversidade Federal do Ceará · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundErythrina verna, popularly known as "mulungu", is a Brazilian medicinal plant used to treat anxiety. Erythrina alkaloids have been described in several species of Erythrina, which have biological and therapeutic properties well known that include anxiolytic and sedative effects.

methodsIn this work, in vitro metabolism of erythraline (1), the major spirocyclic alkaloid of Erythrina verna, was studied in the pig cecum model and by biomimetic phase I reactions. The biomimetic reactions were performed with Jacobsen catalyst to produce oxidative metabolites and one metabolite was isolated and evaluated against cancer cells, as HL-60 (promyelocytic leukemia), SF-295 (Glioblastoma) and OVCAR-8 (ovarian carcinoma).

resultsErythraline exhibited no metabolization by the pig microbiota and a main putative metabolite was formed in a biomimetic model using Jacobsen catalyst. This metabolite was isolated and identified as 8-oxo-erythraline (2). Finally, erythraline and the putative metabolite were tested in MTT model and both compounds showed no important cytotoxic activity against tumor cells.

conclusionsThe alkaloid erythraline was not metabolized by intestinal microbiota, but it was possible to identify its oxidative metabolite from biomimetic reactions. So these data are interesting and stimulate other studies involving this alkaloid, since it is present in phytomedicine products and there are not reported data about the metabolism of erythrina alkaloids.

Indexed as

AnimalsAnxietyBrazilErythrinaHL-60 CellsHumansIndole AlkaloidsIn Vitro TechniquesPlant ExtractsPlants, MedicinalSwineerythralineIndole AlkaloidsPlant Extracts

Identifiers

PMID24548728
PMCPMC3930555
OpenAlexW2052440737

What OpenQuestion holds

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LicenceCC BY
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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.