Evidence map›Paper›PMID 22434853›Full record

ArticleHuman reproduction (Oxford, England)2012

Localization and hormonal regulation of endometrial matrix metalloproteinase-26 in the rhesus macaque.

C C D Almeida-Francia, C S Keator, K Mah, L Holden, C Hergert, O D Slayden

Open access · bronzeAbstract read
In one paragraph

Article in Human reproduction (Oxford, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 37% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. New advances in the treatment of thin endometrium.Frontiers in endocrinology · 2024
    Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
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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

6 authors at 2 institutions in 1 country.

C C D Almeida-FranciaDepartment of Anatomy, Institute of Biosciences, Univ Estadual Paulista, Botucatu, São Paulo, Brazil.
C S Keator
K Mah
L Holden
C Hergert
O D Slayden
Oregon National Primate Research Center · USOregon Health & Science University · US

Funding

YR 50 PROJ- ROBERTS PRIMATE ISLETP51RR000163 · NCRR · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI FRUH, KLAUS J · 1985 to 2011
$140.8M
VASOACTIVE FACTORS IN ART CYCLES AND OVARIAN HYPERSTIMULATION SYNDROMEU54HD018185 · NICHD · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI STOUFFER, RICHARD L · 1999 to 2010
$13.8M
INTERNATIONAL TRAINING &RESEARCH IN POPULATION &HEALTHD43TW000668 · FIC · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI CONN, P. MICHAEL · 1995 to 2010
$2.1M
REPRODUCTIVE STEROIDS AND EXPERIMENTAL STROKEK01RR000163 · NCRR · OREGON HEALTH AND SCIENCE UNIVERSITY · PI MURPHY, STEPHANIE J · 2000 to 2004
$479k
REPRODUCTIVE BIOLOGY IN PRIMATES: CENTER FACILITIESP30HD018185 · NICHD · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI SPIES, HAROLD G · 1985 to 1998
–
FIC NIH HHS D43 TW000668NCRR NIH HHS K01 RR000163NCRR NIH HHS P51 RR000163NCRR NIH HHS RR000163NICHD NIH HHS HD18185NICHD NIH HHS P30 HD018185NICHD NIH HHS TW/HD-00668NICHD NIH HHS U54 HD018185
6 · The paper itself

Abstract

backgroundThe current understanding of hormonal regulation of matrix metalloproteinase-26 (MMP-26) in the primate endometrium is incomplete. The goal of this work was to clarify estrogen and progesterone regulation of MMP-26 in the endometrium of ovariectomized, hormone-treated rhesus macaques.

methodsOvariectomized rhesus macaques (n= 66) were treated with estradiol (E(2)), E(2) plus progesterone, E(2) followed by progesterone alone or no hormone. Endometrium was collected from the hormone-treated animals during the early, mid- and late proliferative and secretory phases of the artificial menstrual cycle. MMP-26 expression was quantified by real-time PCR, and MMP-26 transcript and protein were localized by in situ hybridization and immunohistochemistry and correlated with estrogen receptor 1 and progesterone receptor (PGR).

resultsMMP-26 was localized to glandular epithelium and was undetectable in the endometrial stroma and vasculature. MMP-26 transcript levels were minimal in the hormone-deprived macaques and treatment with E(2) alone did not affect MMP-26 levels. Treatment with progesterone both in the presence and absence of E(2) stimulated MMP-26 expression in the early and mid-secretory phases (P < 0.001). MMP-26 expression preceded decidualization of endometrial stroma. MMP-26 levels then declined to baseline in the late secretory phase (P < 0.01) despite continued E(2) plus progesterone treatment. Loss of detectable MMP-26 expression in the late secretory phase was correlated with late secretory phase loss of glandular epithelial PGR.

conclusionsEndometrial MMP-26 expression is dependent on the presence of progesterone in the early secretory phase and then gradually becomes refractory to progesterone stimulation in the late secretory phase. In the macaque, MMP-26 is a marker of the pre-decidual, secretory endometrium. During the second half of the late secretory phase, and during decidualization, MMP-26 loses its response to progesterone concurrent with the loss of epithelial PGR. The decline in MMP-26 levels between the mid- and late secretory phases may play a role in the receptive window for embryo implantation.

Indexed as

Macaca mulattaAnimalsEndometriumEpitheliumEstradiolFemaleGene Expression Regulation, EnzymologicImmunohistochemistryMatrix Metalloproteinases, SecretedMenstrual CycleOvariectomyProgesteroneReal-Time Polymerase Chain ReactionReceptors, ProgesteroneRNA, MessengerEstradiolMatrix Metalloproteinases, SecretedProgesteroneReceptors, ProgesteroneRNA, Messenger

Identifiers

PMID22434853
PMCPMC3357194
OpenAlexW2144632752

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.