Evidence map›Paper›PMID 19789903›Full record

ArticleLipids2009

Total synthesis and antileishmanial activity of the natural occurring acetylenic fatty acids 6-heptadecynoic acid and 6-icosynoic acid.

Néstor M Carballeira, Michelle M Cartagena, Christopher Fernández Prada, Celia Fernández Rubio, Rafael Balaña-Fouce

Open access · greenAbstract readComparative Study
In one paragraph

Article in Lipids, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
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  8. Trypanosomatids topoisomerase re-visited. New structural findings and role in drug discovery.International journal for parasitology. Drugs and drug resistance · 2014
    Review
  9. Article
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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

5 authors at 2 institutions in 2 countries.

Néstor M CarballeiraDepartment of Chemistry, University of Puerto Rico, P.O. Box 23346, San Juan, PR 00931-3346, USA. nmcarballeira@uprrp.edu
Michelle M Cartagena
Christopher Fernández Prada
Celia Fernández Rubio
Rafael Balaña-Fouce
Universidad de León · ESUniversity of Puerto Rico System · PR

Funding

Upgrade Laboratories Facilities at UPR-Rio PiedrasR25GM061151 · NIGMS · UNIVERSITY OF PUERTO RICO RIO PIEDRAS · PI CARBALLEIRA, NESTOR MANUEL · 2001 to 2023
$32.5M
Marine Fatty Acids as New Antifungal, Antimycobacterial, and Topo-l AgentsSC1GM084708 · NIGMS · UNIVERSITY OF PUERTO RICO RIO PIEDRAS · PI CARBALLEIRA, NESTOR MANUEL · 2008 to 2011
$986k
NIGMS NIH HHS R25 GM061151NIGMS NIH HHS SC1 GM084708NIGMS NIH HHS SC1GM084708
6 · The paper itself

Abstract

The first total syntheses of the naturally occurring acetylenic fatty acids-6-heptadecynoic acid (59% overall yield) and 6-icosynoic acid (34% overall yield)-was accomplished in four steps. Using the same synthetic sequence the naturally occurring fatty acids (6Z)-heptadecenoic acid (46% overall yield) and (6Z)-icosenoic acid (27% overall yield) were also synthesized. The Delta(6) acetylenic fatty acids displayed good antiprotozoal activity towards Leishmania donovani promastigotes (EC(50) = 1-6 microg/mL), but the 6-icosynoic acid was the most effective in the series. In addition, the (6Z)-icosenoic acid was a much better antiprotozoal compound (EC(50) = 5-6 microg/mL) than the (6Z)-heptadecenoic acid (EC(50) > 25 microg/mL). The saturated fatty acids n-heptadecanoic acid and n-eicosanoic acid were not effective towards L. donovani, indicating that the Delta(6) unsaturation in these fatty acids is necessary for leishmanicidal activity. In addition, both the 6-icosynoic acid and the (6Z)-icosenoic acid were inhibitors of the Leishmania DNA topoisomerase IB enzyme (EC(50's) = 36-49 microM), a possible intracellular target for these compounds. This is the first study assessing fatty acids as inhibitors of the Leishmania DNA topoisomerase IB enzyme.

Indexed as

AlkynesAnimalsAntiprotozoal AgentsCells, CulturedFatty Acids, UnsaturatedLeishmania donovaniMice2-hexadecynoic acidAlkynesAntiprotozoal AgentsFatty Acids, Unsaturated

Identifiers

PMID19789903
PMCPMC2899701
OpenAlexW2158219540

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.