Evidence map›Paper›PMID 15280536›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

The inhibitory effect of anandamide on luteinizing hormone-releasing hormone secretion is reversed by estrogen.

Camila Scorticati, Javier Fernández-Solari, Andrea De Laurentiis, Claudia Mohn, Juan P Prestifilippo, Mercedes Lasaga, Adriana Seilicovich, Silvia Billi, Ana Franchi, Samuel M McCann and 1 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

42 citing papers in PubMed, 102 citations in OpenAlex.

  1. Trial
  2. Review
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  4. Endocannabinoid System and Metabolism: The Influences of Sex.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Could cannabinoids provide a new hope for ovarian cancer patients?Pharmacology research & perspectives · 2023
    Review
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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

11 authors at 3 institutions in 2 countries.

Camila ScorticatiCentro de Estudios Farmacológicos y Botánicos, Consejo Nacional de Investigaciones Científicas y Técnicas, Serrano 669, 1414 Buenos Aires, Argentina.
Javier Fernández-Solari
Andrea De Laurentiis
Claudia Mohn
Juan P Prestifilippo
Mercedes Lasaga
Adriana Seilicovich
Silvia Billi
Ana Franchi
Samuel M McCann
Valeria Rettori
Consejo Nacional de Investigaciones Científicas y Técnicas · ARUniversity of Buenos Aires · ARLouisiana State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Because Delta-9-tetrahydrocannabinol (THC) inhibited luteinizing hormone-releasing hormone (LHRH) in male rats, we hypothesized that the endocannabinoid, anandamide (AEA), would act similarly. AEA microinjected intracerebroventricularly (i.c.v.) decreased plasma luteinizing hormone (LH) at 30 min in comparison to values in controls (P < 0.001). The cannabinoid receptor 1 (CB1-r)-specific antagonist, [N-(piperidin-1-yl)-1-(2,4-dichlorophenyl)-5-(4-chlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide] (AM251), produced a significant elevation in plasma LH (P < 0.01). AEA (10(-9) M) decreased LHRH release from medial basal hypothalami incubated in vitro. These results support the concept that endogenous AEA inhibits LHRH followed by decreased LH release in male rats. In ovariectomized (OVX) female rats, AEA i.c.v. also inhibited LH release, but in this case AM251 had an even greater inhibitory effect than AEA. In vitro, AEA had no effect on LHRH in OVX rats. It seems that endogenous AEA inhibits LHRH followed by decreased LH release in OVX rats but that AM251 has an inhibitory action in this case. In striking contrast, in OVX, estrogen-primed (OVX-E) rats, AEA i.c.v. instead of decreasing LH, increased its release. This effect was completely blocked by previous injection of AM251. When medial basal hypothalami of OVX-E rats were incubated, AEA increased LHRH release. The synthesized AEA was higher in OVX-E rats than in OVX and males, indicating that estrogen modifies endocannabinoid levels and effects. The results are interpreted to mean that sex steroids have profound effects to modify the response to AEA. It inhibits LHRH and consequently diminishes LH release in males and OVX females, but stimulates LHRH followed by increased LH release in OVX-E-primed rats.

Indexed as

AnimalsArachidonic AcidsEndocannabinoidsEstrogensFemaleGonadal Steroid HormonesGonadotropin-Releasing HormoneLuteinizing HormoneMaleOvariectomyPolyunsaturated AlkamidesRatsRats, Sprague-DawleyReceptor, Cannabinoid, CB1Sex FactorsanandamideArachidonic AcidsEndocannabinoidsEstrogensGonadal Steroid HormonesGonadotropin-Releasing HormoneLuteinizing HormonePolyunsaturated AlkamidesReceptor, Cannabinoid, CB1

Identifiers

PMID15280536
PMCPMC511070
OpenAlexW2115755671

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.