Evidence map›Paper›PMID 25174934›Full record

ArticleParasites & vectors2014

Linalool, derived from Cinnamomum camphora (L.) Presl leaf extracts, possesses molluscicidal activity against Oncomelania hupensis and inhibits infection of Schistosoma japonicum.

Fan Yang, Erping Long, Juhua Wen, Lei Cao, Chengcheng Zhu, Huanxin Hu, Ying Ruan, Kamolnetr Okanurak, Huiling Hu, Xiaoxia Wei and 8 more

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 65 citations in OpenAlex.

  1. Plant-Derived Terpenes as Emerging Therapeutics Against Schistosomiasis.International journal of molecular sciences · 2026
    Review
  2. Article
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  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Toxicological research · 2019
    Article
  11. Article
  12. Schistosomiasis: Life Cycle, Diagnosis, and Control.Current therapeutic research, clinical and experimental · 2019
    Review
  13. Review
  14. Article
  15. Article
  16. TRP channels in schistosomes.International journal for parasitology. Drugs and drug resistance · 2016
    Review
  17. Review
  18. Article
  19. 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

18 authors at 2 institutions in 2 countries.

Fan Yang
Erping Long
Juhua Wen
Lei Cao
Chengcheng Zhu
Huanxin Hu
Ying Ruan
Kamolnetr Okanurak
Huiling Hu
Xiaoxia Wei
Xiangyun Yang
Chaofan Wang
Limei Zhang
Xiaoying Wang
Pengyu Ji
Huanqin Zheng
Zhongdao WuZhongshan School of Medicine, Sun Yat-sen University, 74 2nd Zhongshan Road, Guangzhou 510080, China. wuzhd@mail.sysu.edu.cn.
Zhiyue Lv
Sun Yat-sen University · CNMahidol Oxford Tropical Medicine Research Unit · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSchistosomiasis japonicum remains a considerable economic and public health concern in China, the Philippines and Indonesia. Currently available measures to control the unique intermediate host Oncomelania hupensis are frequently associated with severe side effects. Previous studies have demonstrated that linalool-rich extracts from various plants exhibited promising biological activities including cytotoxic, anti-microbial and anti-parasitic properties.

methodsWe identified the components of leaf extracts from Cinnamomum camphora by gas chromatography coupled to mass spectrometry (GC-MS) and investigated molluscicidal and larvicidal effects of linalool against O. hupensis and Schistosoma japonicium. The ultrastructural alterations in gills, salivary gland, stomach and hepatopancreas of snails were observed under the light microscope and transmission electron microscope, and lesions to tegument of cercaria were examined under a light microscope and fluorescence microscope. We then evaluated the effects of linalool on skin penetration and migration of schistosomula and adult survival by measurement of worm burden and egg counts in Balb/C mice infected with linalool-treated cercariae.

resultsIn the present work, 44 components were identified from the leaf extracts of C. camphora, of which linalool was the most abundant constituent. Linalool exhibited the striking molluscicidal and larvicidal effects with LC50 = 0.25 mg/L for O. hupensis and LC50 = 0.07 mg/L for cercaria of S. japonicium. After exposure to linalool, damage to the gills and hepatopancreas of the snails, and to the tegument and body-tail joint of cercariae was apparent. In addition, linalool markedly reduced the recovered schistosomulum from mouse skin after challenge infection, and therefore decreased the worm burden in infected animals, but not fecundity of female adults of the parasite.

conclusionsOur findings indicated that linalool might be a novel chemotherapeutic agent against S. japonicium and the snail intermediate host.

Indexed as

Acyclic MonoterpenesAnimalsCinnamomum camphoraFemaleMiceMice, Inbred BALB CMolluscacidesMonoterpenesPlant LeavesRandom AllocationSchistosoma japonicumSnailsAcyclic MonoterpeneslinaloolMolluscacidesMonoterpenes

Identifiers

PMID25174934
PMCPMC4158126
OpenAlexW2139948225

What OpenQuestion holds

Textmetadata
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.