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https://www.readbyqxmd.com/read/28733576/mait-cells-accumulate-in-placental-intervillous-space-and-display-a-highly-cytotoxic-phenotype-upon-bacterial-stimulation
#1
Martin Solders, Laia Gorchs, Tom Erkers, Anna-Carin Lundell, Silvia Nava, Sebastian Gidlöf, Eleonor Tiblad, Isabelle Magalhaes, Helen Kaipe
During pregnancy, the maternal immune system must tolerate the developing foetus, and yet retain a potent antimicrobial response to prevent infections. Mucosal associated invariant T (MAIT) cells recognize microbial-derived vitamin B metabolites presented on the MR1 molecule, but their presence and function at the foetal-maternal interface is not known. We here isolated mononuclear cells from paired samples of peripheral blood (PB), intervillous blood (IVB), and decidua parietalis (DP) following uncomplicated term pregnancies...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728156/predicting-the-risk-to-develop-preeclampsia-in-the-first-trimester-combining-promoter-variant-98a-c-of-lgals13-placental-protein-13-black-ethnicity-previous-preeclampsia-obesity-and-maternal-age
#2
Liora Madar-Shapiro, Ido Karady, Alla Trahtenherts, Argryo Syngelaki, Ranjit Akolekar, Liona Poon, Ruth Cohen, Adi Sharabi-Nov, Berthold Huppertz, Marei Sammar, Kata Juhasz, Nandor Gabor Than, Zoltan Papp, Roberto Romero, Kypros H Nicolaides, Hamutal Meiri
BACKGROUND: LGALS13 (placental protein 13 [PP13]) promoter DNA polymorphisms was evaluated in predicting preeclampsia (PE), given PP13's effects on hypotension, angiogenesis, and immune tolerance. METHODS: First-trimester plasma samples (49 term and 18 intermediate) of PE cases matched with 196 controls were collected from King's College Hospital, London, repository. Cell-free DNA was extracted and the LGALS13 exons were sequenced after PCR amplification. Expression of LGALS13 promoter reporter constructs was determined in BeWo trophoblast-like cells with luciferase assays...
July 21, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28724645/effect-of-maternal-high-dosages-of-folic-acid-supplements-on-neurocognitive-development-in-children-at-4-5-years-of-age-the-prospective-birth-cohort-infancia-y-medio-ambiente-inma-study
#3
Desirée Valera-Gran, Eva M Navarrete-Muñoz, Manuela Garcia de la Hera, Ana Fernández-Somoano, Adonina Tardón, Jesús Ibarluzea, Nekane Balluerka, Mario Murcia, Llúcia González-Safont, Dora Romaguera, Jordi Julvez, Jesús Vioque
Background: The benefits of the use of folic acid supplements (FASs) during the periconception period to prevent neural tube defects and to ensure normal brain development in offspring are well known. There is concern, however, about the long-term effects of the maternal use of high dosages of FASs that exceed the Tolerable Upper Intake Level (UL) (≥1000 μg/d) on child neurocognitive outcomes.Objective: The objective of the study was to examine the association between the use of high dosages of FASs during pregnancy and child neuropsychological development at ages 4-5 y...
July 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28720851/microneedle-patch-delivery-of-influenza-vaccine-during-pregnancy-enhances-maternal-immune-responses-promoting-survival-and-long-lasting-passive-immunity-to-offspring
#4
E Stein Esser, Joanna A Pulit-Penaloza, Haripriya Kalluri, Devin McAllister, Elena V Vassilieva, Elizabeth Q Littauer, Nadia Lelutiu, Mark R Prausnitz, Richard W Compans, Ioanna Skountzou
Influenza virus causes life-threatening infections in pregnant women and their newborns. Immunization during pregnancy is the most effective means of preventing maternal and infant mortality/morbidity; however, influenza vaccination rates of pregnant women remain under 50%. Furthermore, the availability of vaccines in low-resource populations is limited. Skin immunization with microneedle patches (MN) is a novel and safe vaccination platform featuring thermostable vaccine formulations. Cold-chain independence and the potential for self-administration can expand influenza vaccination coverage in developing countries...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714606/treating-depression-during-pregnancy-are-we-asking-the-right-questions
#5
REVIEW
Cara Angelotta, Katherine L Wisner
BACKGROUND: Major depressive disorder (MDD) is a common complication of pregnancy. Once the diagnosis of MDD is made, the physician must assist the pregnant woman in developing a treatment plan. METHODS: In considering antidepressants, the benefit of medication treatment for maternal disease control must be balanced against the risk of the drug to the developing embryo-fetus. This is an individualized decision depending on the disease characteristics, likelihood of maternal depression response, probability of adverse fetal effects, and patient characteristics and values...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28706476/long-term-sex-dependent-vulnerability-to-metabolic-challenges-in-prenatally-stressed-rats
#6
Pamela Panetta, Alessandra Berry, Veronica Bellisario, Sara Capoccia, Carla Raggi, Alessia Luoni, Linda Longo, Marco A Riva, Francesca Cirulli
Prenatal stress (PNS) might affect the developmental programming of adult chronic diseases such as metabolic and mood disorders. The molecular mechanisms underlying such regulations may rely upon long-term changes in stress-responsive effectors such as Brain-Derived Neurotrophic Factor (BDNF) that can affect neuronal plasticity underlying mood disorders and may also play a role in metabolic regulation. Based upon previous data, we hypothesized that PNS might lead to greater vulnerability to an obesogenic challenge experienced at adulthood...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28702027/decreased-human-leukocyte-antigen-g-expression-by-mir-133a-contributes-to-impairment-of-proinvasion-and-proangiogenesis-functions-of-decidual-nk-cells
#7
Wenwei Guo, Liang Fang, Bo Li, Xifeng Xiao, Shuqiang Chen, Jun Wang, Fang Yang, Lihua Chen, Xiaohong Wang
Human leukocyte antigen (HLA)-G plays a crucial role in conferring fetal-maternal tolerance and ensuring a successful pregnancy. CD56(bright) natural killer (NK) cells accumulate at the maternal decidua in large numbers during pregnancy and are found in direct contact with fetal trophoblasts. There are increasing evidences that decidual NK (dNK) cells are crucial for pregnancy. However, the regulation of dNK cells is mostly unknown. Here, we provide evidences that the secretion function of dNK cells in recurrent spontaneous abortion was impaired, which led to the impairment of the proinvasion and proangiogenesis functions of dNK cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28700948/peripartum-antibiotics-promote-gut-dysbiosis-loss-of-immune-tolerance-and-inflammatory-bowel-disease-in-genetically-prone-offspring
#8
Jun Miyoshi, Alexandria M Bobe, Sawako Miyoshi, Yong Huang, Nathaniel Hubert, Tom O Delmont, A Murat Eren, Vanessa Leone, Eugene B Chang
Factors affecting the developing neonatal gut microbiome and immune networks may increase the risk of developing complex immune disorders such as inflammatory bowel diseases (IBD). In particular, peripartum antibiotics have been suggested as risk factors for human IBD, although direct evidence is lacking. Therefore, we examined the temporal impact of the commonly used antibiotic cefoperazone on both maternal and offspring microbiota when administered to dams during the peripartum period in the IL-10-deficient murine colitis model...
July 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28695637/antenatal-management-of-fetal-intrapericardial-teratoma-a-systematic-review
#9
REVIEW
Ahmed A Nassr, Sherif A Shazly, Shaine A Morris, Nancy Ayres, Jimmy Espinoza, Hadi Erfani, Olutoyin A Olutoye, Sara K Sexson, Oluyinka O Olutoye, Charles D Fraser, Michael A Belfort, Alireza A Shamshirsaz
OBJECTIVES: The purpose of this systematic review is to provide a comprehensive overview on the clinical course, perinatal outcome and effectiveness of antenatal management options for pericardial teratoma. METHODS: A comprehensive search including Ovid MEDLINE, Ovid EMBASE, and Scopus was conducted from inception to September 2016. All studies that reported the antenatal course of pericardial teratoma in singleton or twin gestations were considered eligible Standardized forms were used for data abstraction by two independent reviewers...
July 10, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28691395/low-expression-of-soluble-human-leukocyte-antigen-g-in-early-gestation-and-subsequent-placenta-mediated-complications-of-pregnancy
#10
Luca Marozio, Anna Garofalo, Paola Berchialla, Anna Maria Tavella, Loredana Salton, Franco Cavallo, Chiara Benedetto
AIM: Abnormal placentation is a common pathogenic mechanism of many placenta-mediated complications of late pregnancy, including pre-eclampsia, fetal growth restriction, stillbirth, and placental abruption. During successful placentation, the trophoblast (which is a semi-allograft) is not rejected by decidual immune cells because of maternal immune tolerance, mainly induced by human leukocyte antigen G (HLA-G). Deficient HLA-G expression seems to be associated with the development of complications of pregnancy...
July 10, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28684678/maternal-macronutrient-consumption-and-the-developmental-origins-of-metabolic-disease-in-the-offspring
#11
REVIEW
Stephanie M Kereliuk, Gabriel M Brawerman, Vernon W Dolinsky
Recent research aimed at understanding the rise in obesity and cardiometabolic disease in children suggests that suboptimal maternal nutrition conditions organ systems and physiological responses in the offspring contributing to disease development. Understanding the mechanisms by which the macronutrient composition of the maternal diet during pregnancy or lactation affects health outcomes in the offspring may lead to new maternal nutrition recommendations, disease prevention strategies and therapies that reduce the increasing incidence of cardiometabolic disease in children...
July 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28677766/human-decidua-mesenchymal-stem-cells-regulate-decidual-natural-killer-cell-function-via-interactions-between-collagen-and-leukocyte%C3%A2-associated-immunoglobulin%C3%A2-like-receptor-1
#12
Qiang Fu, Xuejing Man, Min Yu, Yongli Chu, Xiying Luan, Hailan Piao, Jiangnan Xue, Changzhu Jin
The development of maternal tolerance to the fetal allograft in critical for the maintenance of the pregnancy, and it is accompanied by the development of a special decidual natural killer (dNK) cell tolerance phenotype. To understand the factors that influence dNK cells during early pregnancy, the present study aimed to identify mesenchymal stem cells (MSCs) from human first‑trimester deciduas, termed decidual MSCs (DMSCs), and to investigate the effect of DMSCs on the regulation of dNK cells via collagen...
July 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28666334/targeting-adrenomedullin-to-improve-lipid-homeostasis-in-diabetic-pregnancies
#13
Yuanlin Dong, Ancizar Betancourt, Michael Belfort, Chandra Yallampalli
Context: Gestational diabetes mellitus (GDM) is associated with disturbances in maternal lipid metabolism. Hypertriacylglycerolemia in GDM is associated with an increased risk of large for gestational age neonates, but the pathogenesis of disrupted lipid homeostasis remains unclear. Objectives: To determine the role of adrenomedullin (AM), a multifunctional peptide, in lipid metabolism in GDM. Design: Omental adipose biopsies were collected in term pregnancy from women with normal glucose tolerence (NGT, n=10) and GDM (n=10)...
June 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28662830/matrix-metalloproteinases-in-normal-pregnancy-and-preeclampsia
#14
Juanjuan Chen, Raouf A Khalil
Normal pregnancy is associated with marked hemodynamic and uterine changes that allow adequate uteroplacental blood flow and uterine expansion for the growing fetus. These pregnancy-associated changes involve significant uteroplacental and vascular remodeling. Matrix metalloproteinases (MMPs) are important regulators of vascular and uterine remodeling. Increases in MMP-2 and MMP-9 have been implicated in vasodilation, placentation, and uterine expansion during normal pregnancy. The increases in MMPs could be induced by the increased production of estrogen and progesterone during pregnancy...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28662425/herbivory-induced-maternal-effects-on-growth-and-defense-traits-in-the-clonal-species-alternanthera-philoxeroides
#15
Bi-Cheng Dong, Ting Fu, Fang-Li Luo, Fei-Hai Yu
Plants have evolved a variety of defense traits against foliar herbivory, including the production of primary and secondary metabolites, the allocation of chemical compounds, and morphological plasticity. Using two vegetative generations of the invasive clonal species Alternanthera philoxeroides, we investigated the effects of maternal and offspring herbivory by Planococcus minor on the integrative defense strategy of plants. Herbivory severely inhibited leaf, stolon and root growth, as well as the production of primary metabolites (soluble sugars, starch, and total non-structural carbohydrates in stolons), and decreased average leaf area and specific leaf area of the second-generation A...
June 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28661560/pregnancy-and-spontaneous-fetal-loss-a-pig-perspective
#16
REVIEW
Mallikarjun Bidarimath, Chandrakant Tayade
Pigs have a unique, non-invasive epitheliochorial placenta where maternal and fetal layers lay in apposition. Indentation of fetal capillaries into the trophoblasts and maternal capillaries into the uterine epithelium reduce the distance between the fetal and maternal blood, ensuring nutrient transfer for proper conceptus development. Another unique feature of pig pregnancy is conceptus-mediated immune cell enrichment during the early stages of conceptus attachment (around gestation Day 15). This period coincides with the development of vasculature networks at the maternal-fetal interface, which is critical for successful conceptus growth...
June 29, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28659920/distinct-transcriptional-and-alternative-splicing-signatures-of-decidual-cd4-t-cells-in-early-human-pregnancy
#17
Weihong Zeng, Zhicui Liu, Xinmei Liu, Siming Zhang, Asma Khanniche, Ying Zheng, Xiaoling Ma, Tiantian Yu, Fuju Tian, Xiao-Rui Liu, Jianxia Fan, Yi Lin
Decidual CD4(+) T (dCD4 T) cells are crucial for the maternal-fetal immune tolerance required for a healthy pregnancy outcome. However, their molecular and functional characteristics are not well elucidated. In this study, we performed the first analysis of transcriptional and alternative splicing (AS) landscapes for paired decidual and peripheral blood CD4(+) T (pCD4 T) cells in human early pregnancy using high throughput mRNA sequencing. Our data showed that dCD4 T cells are endowed with a unique transcriptional signature when compared to pCD4 T cells: dCD4 T cells upregulate 1,695 genes enriched in immune system process whereas downregulate 1,011 genes mainly related to mRNA catabolic process and the ribosome...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28654921/effect-of-maternal-dietary-patterns-during-pregnancy-on-self-reported-allergic-diseases-in-the-first-3-years-of-life-results-from-the-gusto-study
#18
Evelyn Xiu Ling Loo, Lynn Ong, Anne Goh, Ai-Ru Chia, Oon Hoe Teoh, Marjorelee T Colega, Yiong Huak Chan, Seang Mei Saw, Kenneth Kwek, Peter D Gluckman, Keith M Godfrey, Hugo Van Bever, Bee Wah Lee, Yap Seng Chong, Mary Foong-Fong Chong, Lynette Pei-Chi Shek
BACKGROUND: Maternal diet during pregnancy has been suggested to be an important early-life exposure that influences immune tolerance and the development of allergic diseases in offspring. METHODS: We examined the relationship between maternal dietary patterns assessed using 24-h recalls and food diaries at 26-28 weeks of pregnancy and the subsequent development of allergic outcomes in the offspring in the Growing Up in Singapore towards Healthy Outcomes (GUSTO) birth cohort...
June 28, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28650965/epigenetic-adaptation-of-the-placental-serotonin-transporter-gene-slc6a4-to-gestational-diabetes-mellitus
#19
Sofia Blazevic, Marina Horvaticek, Maja Kesic, Peter Zill, Dubravka Hranilovic, Marina Ivanisevic, Gernot Desoye, Jasminka Stefulj
We tested the hypothesis that gestational diabetes mellitus (GDM) alters the DNA methylation pattern of the fetal serotonin transporter gene (SLC6A4), and examined the functional relevance of DNA methylation for regulation of the SLC6A4 expression in the human placenta. The study included 50 mother-infant pairs. Eighteen mothers were diagnosed with GDM and 32 had normal glucose tolerance (NGT). All neonates were of normal birth weight and born at term by planned Cesarean section. DNA and RNA were isolated from samples of tissue collected from the fetal side of the placenta immediately after delivery...
2017: PloS One
https://www.readbyqxmd.com/read/28649085/a-novel-heterozygous-igf-1-receptor-mutation-associated-with-hypoglycemia
#20
Ravid Solomon-Zemler, Lina Basel-Vanagaite, David Steier, Shoashana Yakar, Eran Mel, Moshe Phillip, Lily Bazak, Danni Bercovich, Haim Werner, Liat de Vries
Mutation in the insulin-like growth factor-1 receptor (IGF1R) gene is a rare cause for intrauterine and postnatal growth disorders. Patients identified with IGF1R mutations present with either normal or impaired glucose tolerance. None of the cases described so far showed hypoglycemia. We aimed to identify the genetic basis for small for gestational age, short stature and hypoglycemia over three generations in one family. The proband, a 9-year-old male presented in infancy with recurrent hypoglycemic episodes, symmetric intrauterine growth retardation and postnatal growth retardation...
June 25, 2017: Endocrine Connections
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