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Nfkb pregnancy

Gabriella S Antoniotti, Melinda Coughlan, Lois A Salamonsen, Jemma Evans
STUDY QUESTION: Do obese levels of advanced glycation end products (AGEs) within the uterine cavity detrimentally alter tissue function in embryo implantation and placental development? SUMMARY ANSWER: Obese levels of AGEs activate inflammatory signaling (p65 NFκB) within endometrial epithelial cells and alter their function, cause endoplasmic reticulum (ER) stress in endometrial stromal cells and impair decidualization, compromise implantation of blastocyst mimics and inhibit trophoblast invasion...
April 1, 2018: Human Reproduction
Malena Schanton, Julieta L Maymó, Antonio Pérez-Pérez, Víctor Sánchez-Margalet, Cecilia L Varone
Leptin is a homeostatic regulator in the placenta where it promotes proliferation, protein synthesis and the expression of tolerogenic maternal response molecules such as HLA-G. Leptin also exerts an anti-apoptotic action in placenta controlling the expression of p53 master cell cycle regulator under different stress conditions. On the other hand, leptin is an integrative target of different placental stimuli. The expression of leptin in placenta is regulated by hCG, insulin, steroids, hypoxia and many other growth hormones, suggesting that it might have an important endocrine function in the trophoblastic cells...
January 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
Nao Tanikawa, Ayaka Ohtsu, Ryouka Kawahara-Miki, Koji Kimura, Shuichi Matsuyama, Hisataka Iwata, Takehito Kuwayama, Koumei Shirasuna
BACKGROUND: Endometrial cells secrete various cytokines and the dysfunction of endometrial cells may directly lead to infertility. Interferon tau (IFNT) secreted by trophoblast cells, a well-known pregnancy recognition signal in ruminants, acts on the uterus to prepare for pregnancy. Aging causes cellular and organ dysfunction, and advanced maternal age is associated with reduced fertility. However, few studies have investigated age-dependent changes in the uterus. METHODS: Using next generation sequencing and real-time PCR, we examined mRNA expression in bovine endometrial cells in vitro obtained from young (mean 45...
August 14, 2017: Reproductive Biology and Endocrinology: RB&E
Katarzyna Buska, Anna Ewa Kedzierska, Anna Slawek, Anna Chelmonska-Soyta
Early preimplantation embryo-maternal communication is crucial for the establishment and development of pregnancy. Though the involvement of several candidate genes and proteins in this complex event has been described, the hierarchy of molecular networks governing this communication remains unknown. The primary objective of this study was to determine whether the presence of embryos in the uterine lumen stimulated or inhibited gene expression in the uterine tissue on day 3.5 post coitum. To answer this question, we investigated the gene expression of dedicated signal transduction pathways in the uterus of CD-1 mice during the preimplantation stage of pregnancy and compared this expression to mice with induced pseudopregnancy...
March 2017: Reproductive Biology
Ron Beloosesky, Nizar Khatib, Yuval Ginsberg, Saja Anabosy, Einat Shalom-Paz, Masha Dahis, Michael G Ross, Zeev Weiner
BACKGROUND: Maternal magnesium administration has been shown to protect the preterm fetus from white- and gray-matter injury, although the mechanism is unknown. OBJECTIVE: The purpose of the study is to test the following hypotheses: (1) maternal infections/inflammation activate fetal neuronal N-methyl-D-aspartate receptors that up-regulate neuronal nitric oxide synthase and nuclear factor kappa-light-chain-enhancer of activated B cells pathways; and (2) maternal magnesium sulfate attenuates fetal brain neuronal nitric oxide synthase and nuclear factor kappa-light-chain-enhancer of activated B cells activation through N-methyl-D-aspartate receptors...
September 2016: American Journal of Obstetrics and Gynecology
Xiaopeng Zhang, Xiuwen Zhou, Lingjun Li, Miao Sun, Qingqing Gao, Pengjie Zhang, Jiaqi Tang, Yu He, Di Zhu, Zhice Xu
Hypoxia during pregnancy can adversely affect development. This study, addressed the impact of prenatal hypoxia on thymus development in the rodent offspring. Pregnant Balb/c mice were exposed to hypoxia or normoxia during pregnancy, and the thymuses of their offspring were tested. Chronic hypoxia during pregnancy resulted in significantly decreased fetal body weight, with an increased thymus-to-body weight ratio. Histological analysis revealed a smaller cortical zone in the thymus of the offspring exposed to hypoxia...
April 2016: Molecular Reproduction and Development
Carolina B Jacometo, Johan S Osorio, Michael Socha, Marcio N Corrêa, Fiorenzo Piccioli-Cappelli, Erminio Trevisi, Juan J Loor
Organic trace mineral (ORG) supplementation to dairy cows in substitution of sulfate (INO) sources has been associated with improvement in immune function during stressful states such as the peripartal period. However, the effect of supplemental ORG during pregnancy on the neonatal calf is unknown. Therefore, our aim was to investigate the effects of ORG supplementation during late pregnancy on the immune system and growth of the neonatal calf. Of specific interest was the evaluation of inflammation-related microRNA (miRNA) and target gene expression in blood neutrophils as indicators of possible nutritional programming...
November 2015: Journal of Dairy Science
Xiaohua Yang, Maricela Haghiac, Patricia Glazebrook, Judi Minium, Patrick M Catalano, Sylvie Hauguel-de Mouzon
STUDY QUESTION: What are the effects of fatty acids on placental inflammatory cytokine with respect to toll-like receptor-4/nuclear factor-kappa B (TLR4/NF-kB)? SUMMARY ANSWER: Exogenous fatty acids induce a pro-inflammatory cytokine response in human placental cells in vitro via activation of TLR4 signaling pathways. WHAT IS KNOWN ALREADY: The placenta is exposed to changes in circulating maternal fatty acid concentrations throughout pregnancy...
September 2015: Human Reproduction
Daniel J Mathew, Emily M Newsom, Jennifer M Guyton, Christopher K Tuggle, Rodney D Geisert, Matthew C Lucy
Conceptus mortality is greatest in mammals during the peri-implantation period, a time when conceptuses appose and attach to the uterine surface epithelium while releasing proinflammatory molecules. Interleukin 1 beta (IL1B), a master proinflammatory cytokine, is released by the primate, rodent, and pig blastocyst during the peri-implantation period and is believed to be essential for establishment of pregnancy. The gene encoding IL1B has duplicated in the pig, resulting in a novel gene. Preliminary observations indicate that the novel IL1B is specifically expressed by pig conceptuses during the peri-implantation period...
April 2015: Biology of Reproduction
Rodney D Geisert, Matthew C Lucy, Jeffrey J Whyte, Jason W Ross, Daniel J Mathew
Establishment of pregnancy in pigs involves maintaining progesterone secretion from the corpora lutea in addition to regulating a sensitive interplay between the maternal immune system and attachment of the rapidly expanding trophoblast for nutrient absorption. The peri-implantation period of rapid trophoblastic elongation followed by attachment to the maternal uterine endometrium is critical for establishing a sufficient placental-uterine interface for subsequent nutrient transport for fetal survival to term, but is also marked by the required conceptus release of factors involved with stimulating uterine secretion of histotroph and modulation of the maternal immune system...
2014: Journal of Animal Science and Biotechnology
A Sasaki, W de Vega, S Sivanathan, S St-Cyr, P O McGowan
Maternal obesity and overconsumption of saturated fats during pregnancy have profound effects on offspring health, ranging from metabolic to behavioral disorders in later life. The influence of high-fat diet (HFD) exposure on the development of brain regions implicated in anxiety behavior is not well understood. We previously found that maternal HFD exposure is associated with an increase in anxiety behavior and alterations in the expression of several genes involved in inflammation via the glucocorticoid signaling pathway in adult rat offspring...
July 11, 2014: Neuroscience
Karen Matias do Prado, Simone Correa-Silva, Leandro Gustavo Oliveira, Niels Olsen Saraiva Camara, Erica Ono, Silvana Sandri, Melissa Cavalheiro Tourino, Ana Campa, Larissa de Sá Lima, Cristoforo Scavone, Estela Bevilacqua
PROBLEM: Immunosuppressive drugs change gestational IDO activity at the maternal-fetal interface. METHOD OF STUDY: Analysis of placental IDO expression and activity, interferon gamma (IFN-γ), and IL-10 expression and NFkB activity in renal transplant recipient women under immunosuppressive treatment. RESULTS: We demonstrated a significant reduction in IDO activity (P = 0.0275) and expression (P = 0.026) and in NFkB activity (P = 0.0176) in the villous region of renal transplanted mother...
July 2014: American Journal of Reproductive Immunology: AJRI
Ashish Jain, Lokesh Kumar, Bhavana Kushwaha, Monika Sharma, Aastha Pandey, Vikas Verma, Vikas Sharma, Vishal Singh, Tara Rawat, Vishnu L Sharma, Jagdamba P Maikhuri, Gopal Gupta
STUDY QUESTION: Can a specifically acting synthetic spermicide (DSE-37) be combined with a natural microbicide (saponins) for safe, prophylactic contraception? SUMMARY ANSWER: A 1:1 (w/w) combination of DSE-37 and Sapindus saponins can target sperm and Trichomonas vaginalis precisely without any noticeable off-target effects on somatic cells at effective concentrations. WHAT IS KNOWN ALREADY: Broad-spectrum vaginal agents like nonoxynol-9 (N-9) and cellulose sulfate have failed clinically as microbicides due to non-specific off-target effects, whereas agents that specifically target retroviruses have shown promise in clinical trials...
February 2014: Human Reproduction
Amrutlal K Patel, Mahavir Singh, V V S Suryanarayana
The expression of milk protein genes is tightly regulated in a spatio-temporal manner through the combinatorial interaction of lactogenic hormones and a set of transcription factors mediating developmental and tissue-specific gene expression. The recruitment of a unique set of transcription factors is determined by the cis-regulatory motifs present in the gene promoter region. Here, we report the isolation, sequencing, structural analysis and interspecies comparison of the 5'cis-regulatory region of the buffalo alpha S1 (αS1)-casein gene...
February 2014: Journal of Applied Genetics
Omari S Khalil, Caroline M Forrest, Mazura Pisar, Robert A Smith, L Gail Darlington, Trevor W Stone
Activation of the immune system during pregnancy is believed to lead to psychiatric and neurological disorders in the offspring, but the molecular changes responsible are unknown. Polyinosinic:polycytidylic acid (poly(I:C)) is a viral-mimetic double-stranded RNA complex which activates Toll-Like-Receptor-3 and can activate the metabolism of tryptophan through the oxidative kynurenine pathway to compounds that modulate activity of glutamate receptors. The aim was to determine whether prenatal administration of poly(I:C) affects the expression of neurodevelopmental proteins in the offspring and whether such effects were mediated via the kynurenine pathway...
October 2013: Immunopharmacology and Immunotoxicology
Daniel Vaiman, Rosamaria Calicchio, Francisco Miralles
Preeclampsia is a pregnancy disease affecting 5 to 8% of pregnant women and a leading cause of both maternal and fetal mortality and morbidity. Because of a default in the process of implantation, the placenta of preeclamptic women undergoes insufficient vascularization. This results in placental ischemia, inflammation and subsequent release of placental debris and vasoactive factors in the maternal circulation causing a systemic endothelial activation. Several microarray studies have analyzed the transcriptome of the preeclamptic placentas to identify genes which could be involved in placental dysfunction...
2013: PloS One
Martha Lappas
Preterm birth remains one of the most important issues facing perinatal medicine today, with chronic inflammation and/or infection being the biggest etiological factor. The nucleotide oligomerization domain (NOD) intracellular molecules recognize a wide range of microbial products as well as other intracellular danger signals, thereby initiating inflammation through activation of nuclear factor KB (NFKB), a central regulator of the terminal processes of human labor and delivery. The aims of this study were to determine the effect of 1) human labor, proinflammatory cytokines, and bacterial endotoxin LPS on NOD1 and NOD2 expression and 2) NOD1 and NOD2 activation on the expression of prolabor mediators in human fetal membranes and myometrium...
July 2013: Biology of Reproduction
Ratana Lim, Gillian Barker, Martha Lappas
Preterm birth is a major determinant of neonatal mortality and morbidity, affecting approximately one-third of preterm births as a result of prelabor rupturing of membranes. Infection and inflammation have strong causal links to preterm delivery, resulting in the activation of nuclear factor-kappaB (NFKB) and its downstream targets. Human sirtuin (SIRT) 6, which has ADP-ribosyl transferase and deacetylase activity, exhibits anti-inflammatory actions. The aims of this study were to determine the effect of 1) human preterm labor on SIRT6 expression in human gestational tissue and 2) the effect in primary amnion cells of SIRT6 inhibition, using small interfering RNA (siRNA) on prolabor mediators...
January 2013: Biology of Reproduction
Martha Lappas, Trent M Woodruff, Stephen M Taylor, Michael Permezel
Human preterm and term parturition is associated with inflammatory cascades in the uteroplacental unit. Activation of the complement cascade releases potent proinflammatory mediators, including the anaphylatoxin C5a, which exerts its biological effects through its receptors, C5AR (also known as CD88) and C5L2, official symbol GPR77. To date, there are few data available on the role of C5a and CD88 in human pregnancy, so the aim of this study was to determine the effect of C5a and CD88 on some key inflammatory pathways involved in human parturition...
June 2012: Biology of Reproduction
Rodney Geisert, Asgerally Fazleabas, Mathew Lucy, Daniel Mathew
Implantation and the establishment of pregnancy in mammals involves an intricate interplay of hormones, cytokines, growth factors, proteins, lipids, ions and the extracellular matrix between the uterine epithelium, stroma, immune cells and the conceptus trophectoderm. The divergent nature of implantation in the mouse, human and pig provides not only an interesting contrast in the establishment of pregnancy and early embryonic development but also intriguing similarities with regard to early endometrial-conceptus signaling...
September 2012: Cell and Tissue Research
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