Evidence map›Paper›PMID 22848573›Full record

ArticlePloS one2012

Long chain polyunsaturated fatty acids alter oxytocin signaling and receptor density in cultured pregnant human myometrial smooth muscle cells.

Paul Y Kim, Miao Zhong, Yoon-Sun Kim, Barbara M Sanborn, Kenneth G D Allen

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Differential DHA and EPA Levels in Women with Preterm and Term Births: A Tertiary Hospital Study in Indonesia.Medical science monitor : international medical journal of experimental and clinical research · 2024
    Observational
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. 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

5 authors at 1 institution in 1 country.

Paul Y KimDepartment of Food Science and Human Nutrition, Colorado State University, Fort Collins, Colorado, United States of America.
Miao Zhong
Yoon-Sun Kim
Barbara M Sanborn
Kenneth G D Allen
Colorado State University · US

Funding

UTERINE RELAXING FACTORS: MOLECULAR ASPECTS OF ACTIONR01HD009618 · NICHD · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI SANBORN, BARBARA M · 1986 to 2009
$1.4M
UTERINE RELAXING FACTORS: MOLECULAR ASPECTS OF ACTIONR37HD009618 · NICHD · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI SANBORN, BARBARA M · 1997 to 2001
$516k
NICHD NIH HHS HD09618NICHD NIH HHS R01 HD009618NICHD NIH HHS R37 HD009618
6 · The paper itself

Abstract

Epidemiological studies and interventional clinical trials indicate that consumption of long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA) such as docosahexaenoic acid (DHA) lengthen gestational duration. Although the mechanisms are not well understood, prostaglandins (PG) of the 2-series are known to play a role in the initiation and progress of labor. In animal studies, modest DHA provision has been shown to reduce placental and uterine PGE(2) and PGF(2α), matrix metalloproteinase (MMP)-2 and MMP-9 expression, and placental collagenase activity. However, modulation of PG biosynthesis may not account for all the effects of LC n-3 PUFAs in labor. We investigated one potential PG-independent mechanism of LC PUFA action using cultured pregnant human myometrial smooth muscle cells. Our goal was to characterize the effect of LC PUFA treatment on oxytocin signaling, a potent uterotonic hormone involved in labor. The addition of 10 µM-100 µM DHA or arachidonic acid (AA) to the culture media for 48 h resulted in dose dependent enrichment of these fatty acids in membrane lipid. DHA and AA significantly inhibited phosphatidylinositol turnover and [Ca(2+)](i) mobilization with oxytocin stimulation compared to bovine serum albumin control and equimolar oleic acid. DHA and AA significantly reduced oxytocin receptor membrane concentration without altering binding affinity or rate of receptor internalization. These findings demonstrate a role for LC n-3 PUFAs in regulation of oxytocin signaling and provide new insight into additional mechanisms pertaining to reports of dietary fish and fish oil consumption prolonging gestation.

Indexed as

AnimalsCalciumCell MembraneCells, CulturedCulture MediaDose-Response Relationship, DrugFatty Acids, UnsaturatedFemaleHumansIntracellular SpaceLigandsMuscle ContractionMyocytes, Smooth MuscleMyometriumOxytocinPhosphatidylinositolsCalciumCulture MediaFatty Acids, UnsaturatedLigandsOxytocinPhosphatidylinositolsReceptors, Oxytocin

Identifiers

PMID22848573
PMCPMC3406084
OpenAlexW2061932061

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.