Evidence map›Paper›PMID 22673578›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2012

Group IVA phospholipase A₂ optimizes ovulation and fertilization in rodents through induction of and metabolic coupling with prostaglandin endoperoxide synthase 2.

Shiro Kurusu, Adam Sapirstein, Joseph V Bonventre

Abstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2012. 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
2.1field-weighted citation impact, top 13% 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, 21 citations in OpenAlex.

  1. The Phospholipase AJournal of lipid and atherosclerosis · 2026
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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

3 authors at 3 institutions in 2 countries.

Shiro KurusuDepartment of Medicine, Massachusetts GeneralHospital, Boston, Massachusetts, USA.
Adam Sapirstein
Joseph V Bonventre
Harvard Stem Cell Institute · USJohns Hopkins University · USKitasato University · JP

Funding

SIGNALLING IN MESANGIAL CELLS--CALCIUM AND PHOPHOLIPASESP01DK038452 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI BROWN, DENNIS · 1987 to 2012
$20.1M
Mechanisms of Ischemic Kidney Injury and RepairR01DK039773 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI JOSEPH VINCENT BONVENTRE · 1987 to 2026
$6.2M
Mechanisms of Ischemic Kidney Injury and RepairR37DK039773 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI BONVENTRE, JOSEPH VINCENT · 1993 to 2021
$5.2M
NIDDK NIH HHS DK38452NIDDK NIH HHS DK39773NIDDK NIH HHS P01 DK038452NIDDK NIH HHS R01 DK039773NIDDK NIH HHS R37 DK039773
6 · The paper itself

Abstract

Female mice lacking group IVA phospholipase A(2) (Pla2g4a(-/-)) have a smaller litter size, which is due, in part, to defective implantation. We examined PLA(2)G4A dependence of the processes of ovulation and fertilization. Following induction of ovulation by equine chorionic gonadotropin (eCG)/human CG (hCG) treatment and mating, ovulation and fertilization rates were reduced significantly in Pla2g4a(-/-) mice as compared to wild-type littermates. Human CG triggered robust ovarian prostaglandin (PG) E(2) production in the preovulatory period that was significantly attenuated in Pla2g4a(-/-) mice. Human CG transiently enhanced ovarian expression of PLA(2)G4A and prostaglandin endoperoxide synthase 2 (PTGS2) in wild-type mice. This PTGS2 induction was decreased in Pla2g4a(-/-) mice and also in immature rats treated with the PLA(2)G4A inhibitor, archidonyl trifluoromethyl ketone. A close spatiotemporal association of PLA(2)G4A with PTGS2 was found in mouse and rat preovulatory follicles examined by immunohistochemistry. Less association was observed with 4 other forms of PLA(2). Our data strongly suggest that PLA(2)G4A amplifies hCG induction of PTGS2 and colocalizes with the induced PTGS2, thus contributing to robust PG production required for optimal ovulation and fertilization in rodents.

Indexed as

FertilizationOvulationAnimalsBlotting, WesternChorionic GonadotropinCyclooxygenase 2DinoprostoneEnzyme InductionFemaleGroup IV Phospholipases A2HumansImmunohistochemistryMiceMice, Inbred C57BLMice, KnockoutOvaryChorionic GonadotropinCyclooxygenase 2DinoprostoneGroup IV Phospholipases A2Ptgs2 protein, mouse

Identifiers

PMID22673578
PMCPMC3425826
OpenAlexW2096161691

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.