Evidence map›Paper›PMID 1313445›Full record

ArticleThe Journal of clinical investigation1992

Intravascular filarial parasites inhibit platelet aggregation. Role of parasite-derived prostanoids.

L X Liu, P F Weller

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

15 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Identification of diadenosine triphosphate in Brugia malayi by reverse phase high performance liquid chromatography and MALDI mass spectrometry.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2007
    Article
  13. Article
  14. Review
  15. 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

2 authors at 1 institution in 1 country.

L X LiuCharles A. Dana Research Institute, Department of Medicine, Beth Israel Hospital, Boston, Massachusetts 02215.
P F Weller
Beth Israel Deaconess Hospital · US

Funding

FILARIAL EICOSANOIDS--BIOSYNTHESIS &CELLULAR ACTIONSK11AI000965 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI LIU, LEO X · 1990 to 1994
–
FILARIASIS REPOSITORY RESEARCH SERVICEN01AI002642 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI MC CALL, JOHN W · 1985 to 1987
–
ARACHIDONIC ACID METABOLISM BY FILARIAL PARASITESR22AI023826 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI WELLER, PETER F · 1986 to 1988
–
NIAID NIH HHS AI-02642NIAID NIH HHS AI-23826NIAID NIH HHS K11 AI-00965
6 · The paper itself

Abstract

The nematode parasites that cause human lymphatic filariasis survive for long periods in their vascular habitats despite continual exposure to host cells. Platelets do not adhere to blood-borne microfilariae, and thrombo-occlusive phenomena are not observed in patients with circulating microfilariae. We studied the ability of microfilariae to inhibit human platelet aggregation in vitro. Brugia malayi microfilariae incubated with human platelets caused dose-dependent inhibition of agonist-induced platelet aggregation, thromboxane generation, and serotonin release. As few as one microfilaria per 10(4) platelets completely inhibited aggregation of platelets induced by thrombin, collagen, arachidonic acid, or ionophore A23187. Microfilariae also inhibited aggregation of platelets in platelet-rich plasma stimulated by ADP, compound U46619, or platelet-activating factor. The inhibition required intimate proximity but not direct contact between parasites and platelets, and was mediated by parasite-derived soluble factors of low (less than 1,000 Mr) molecular weight that were labile in aqueous media and caused an elevation of platelet cAMP. Prior treatment of microfilariae with pharmacologic inhibitors of cyclooxygenase decreased both parasite release of prostacyclin and PGE2 and microfilarial inhibition of platelet aggregation. These results indicate that microfilariae inhibit platelet aggregation, via mechanisms that may include the elaboration of anti-aggregatory eicosanoids.

Indexed as

Platelet AggregationAnimalsBrugiaCyclic GMPGerbillinaeHumansMicrofilariaeProstaglandinsCyclic GMPProstaglandins

Identifiers

PMID1313445
PMCPMC442967
OpenAlexW1993393753

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.