Evidence map›Paper›PMID 17426015›Full record

ArticleProceedings. Biological sciences2007

Diverse molecular data demonstrate that commercially available medicinal leeches are not Hirudo medicinalis.

Mark E Siddall, Peter Trontelj, Serge Y Utevsky, Mary Nkamany, Kenneth S Macdonald

Abstract readComparative Study
In one paragraph

Article in Proceedings. Biological sciences, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing 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

68 citing papers in PubMed.

  1. Circuit-constrained molecular neuroethology in the medicinal leech Hirudo verbana.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Review
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  8. Acceleration of genome rearrangement in clitellate annelids.bioRxiv : the preprint server for biology · 2024
    Article
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  11. Applied and environmental microbiology · 2021
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  20. Draft mitochondrial genomes ofMitochondrial DNA. Part B, Resources · 2016
    Article

8 more citing papers are in PubMed but not listed here.

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.

Mark E SiddallDivision of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA. siddall@amnh.org
Peter Trontelj
Serge Y Utevsky
Mary Nkamany
Kenneth S Macdonald

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The European medicinal leech is one of vanishingly few animal species with direct application in modern medicine. In addition to the therapeutic potential held by many protease inhibitors purified from leech saliva, and notwithstanding the historical association with quackery, Hirudo medicinalis has been approved by the United States Food and Drug Administration as a prescription medical device. Accurate annotation of bioactive compounds relies on precise species determination. Interpretations of developmental and neurophysiological characteristics also presuppose uniformity within a model species used in laboratory settings. Here, we show, with mitochondrial sequences and nuclear microsatellites, that there are at least three species of European medicinal leech, and that leeches marketed as H. medicinalis are actually Hirudo verbana. Beyond the obvious need for reconsideration of decades of biomedical research on this widely used model organism, these findings impact regulatory statutes and raise concerns for the conservation status of European medicinal leeches.

Indexed as

AllelesCommercePhylogenyAnalysis of VarianceAnimalsBase SequenceDNA, MitochondrialDNA PrimersEuropeLeechesMicrosatellite RepeatsModels, GeneticMolecular Sequence DataSequence Analysis, DNASpecies SpecificityDNA, MitochondrialDNA Primers

Identifiers

PMID17426015
PMCPMC2176162

What OpenQuestion holds

Textmetadata
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.