ArticleEndocrinology2013
Mice deficient in surfactant protein A (SP-A) and SP-D or in TLR2 manifest delayed parturition and decreased expression of inflammatory and contractile genes.
Article in Endocrinology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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.
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.
Who cites it
53 citing papers in PubMed, 82 citations in OpenAlex.
- Vaginal microbiome and preterm birth: Composition, mechanisms and microbiota‑directed therapies (Review).International journal of molecular medicine · 2025Review
- Increased Levels of hsa-miR-199a-3p and hsa-miR-382-5p in Maternal and Neonatal Blood Plasma in the Case of Placenta Accreta Spectrum.International journal of molecular sciences · 2024Article
- Loss of Surfactant Protein A Alters Perinatal Lung Morphology and Susceptibility to Hyperoxia-Induced Bronchopulmonary Dysplasia.Antioxidants (Basel, Switzerland) · 2024Article
- Decline in corepressor CNOT1 in the pregnant myometrium near term impairs progesterone receptor function and increases contractile gene expression.The Journal of biological chemistry · 2024Article
- Disruption of the SP-A/SP-R210American journal of physiology. Lung cellular and molecular physiology · 2024Article
- In-vivo studies of targeted and localized cancer drug release from microporous poly-di-methyl-siloxane (PDMS) devices for the treatment of triple negative breast cancer.Scientific reports · 2024Article
- Surfactant protein a attenuates generalized and localized neuroinflammation in neonatal mice.Brain research · 2023Article
- The amniotic fluid proteome changes with term labor and informs biomarker discovery in maternal plasma.Scientific reports · 2023Article
- Is human labor at term an inflammatory condition?†.Biology of reproduction · 2023Review
- Meconium Aspiration Syndrome in Animal Models: Inflammatory Process, Apoptosis, and Surfactant Inactivation.Animals : an open access journal from MDPI · 2022Review
- Fetal inflammatory response at the fetomaternal interface: A requirement for labor at term and preterm.Immunological reviews · 2022Review
- A Review of Delayed Delivery Models and the Analysis Method in Mice.Journal of developmental biology · 2022Review
- The Lung Microenvironment Instructs Gene Transcription in Neonatal and Adult Alveolar Macrophages.Journal of immunology (Baltimore, Md. : 1950) · 2022Article
- Preterm Labor, a Syndrome Attributed to the Combination of External and Internal Factors.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2022Review
- Fetal Lung-Derived Exosomes in Term Labor Amniotic Fluid Induce Amniotic Membrane Senescence.Frontiers in cell and developmental biology · 2022Article
- Presence of surfactant proteins in the uteri and placentae of pregnant mares.The Journal of veterinary medical science · 2021Article
- Surfactant protein A reduces TLR4 and inflammatory cytokine mRNA levels in neonatal mouse ileum.Scientific reports · 2021Article
- Surfactant Protein-A Function: Knowledge Gained From SP-A Knockout Mice.Frontiers in pediatrics · 2021Review
- Perinatal Gram-Positive Bacteria Exposure Elicits Distinct Cytokine Responses In Vitro.International journal of molecular sciences · 2020Article
- Decreased 11β-hydroxysteroid dehydrogenase 1 in lungs of steroid receptor coactivator (Src)-1/-2 double-deficient fetal mice is caused by impaired glucocorticoid and cytokine signaling.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
Previously we obtained compelling evidence that the fetus provides a critical signal for the initiation of term labor through developmental induction of surfactant protein (SP)-A expression by the fetal lung and secretion into amniotic fluid (AF). We proposed that interactions of AF macrophage (Mϕ) Toll-like receptors (TLRs) with SP-A, at term, or bacterial components, at preterm, result in their activation and migration to the pregnant uterus. Herein the timing of labor in wild-type (WT) C57BL/6 mice was compared with mice homozygous null for TLR2, SP-A, SP-D, or doubly deficient in SP-A and SP-D. Interestingly, TLR2(-/-) females manifested a significant (P < 0.001) delay in timing of labor compared with WT as well as reduced expression of the myometrial contraction-associated protein (CAP) gene, connexin-43, and Mϕ marker, F4/80, at 18.5 d postcoitum (dpc). Whereas in first pregnancies, SP-A(-/-), SP-D(-/-), and SP-A/D(-/-) females delivered at term (∼19.5 dpc), in second pregnancies, parturition was delayed by approximately 12 h in SP-A(-/-) (P = 0.07) and in SP-A/D(-/-) (P <0.001) females. Myometrium of SP-A/D(-/-) females expressed significantly lower levels of IL-1β, IL-6, and CAP genes, connexin-43, and oxytocin receptor at 18.5 dpc compared with WT. F4/80(+) AF Mϕs from TLR2(-/-) and SP-A/D(-/-) mice expressed significantly lower levels of both proinflammatory and antiinflammatory activation markers (e.g. IL-1β, IL-6, ARG1, YM1) compared with gestation-matched WT AF Mϕs. These novel findings suggest that the pulmonary collectins acting via TLR2 serve a modulatory role in the timing of labor; their relative impact may be dependent on parity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.