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Pregnancy immunology

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https://www.readbyqxmd.com/read/28921767/expansion-of-cd4-phenotype-among-cd160-receptor-expressing-lymphocytes-in-murine-pregnancy
#1
Matyas Meggyes, Laszlo Szereday, Pal Jakso, Barbara Bogar, Agnes Bogdan, Jasper Nörenberg, Eva Miko, Aliz Barakonyi
PROBLEM: CD160, a cell surface co-receptor, is capable of up- or downregulating cell proliferation, cytotoxicity or cytokine production on lymphocytes. Our aim was to investigate CD160(+) lymphocytes in the periphery and at the maternal-foetal interface during murine pregnancy. METHOD OF STUDY: CD4(+) , CD8(+) and gamma/delta T-cell phenotype, TIM3 co-expression and cytotoxic activity of CD160(+) lymphocytes of pregnant BALB/c mice were analysed by flow cytometry...
September 16, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28921728/undifferentiated-connective-tissue-diseases-and-adverse-pregnancy-outcomes-an-undervalued-association
#2
REVIEW
Arsenio Spinillo, Fausta Beneventi, Roberto Caporali, Veronique Ramoni, Carlomaurizio Montecucco
Undifferentiated connective tissue diseases (UCTDs) are a heterogeneous group of disorders characterized by symptoms and signs suggestive of systemic autoimmune rheumatic disease (ARD), but which do not fulfill all the established criteria for definite diagnosis of a condition. Although a third of UCTDs can progress to a definite ARD within months or years, most UCTDs can remain stable for years with minimal disease activity. The annual incidence of UCTD in the general population ranges from 14 to 140 per 100 000 people...
September 16, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28919599/clinico-biochemical-profile-of-women-with-hyperemesis-gravidarum-admitted-in-a-tertiary-hospital
#3
S Kabir, M S Basher, H Akhter, T Latif, S N Akhter, R K Karmoker, S A Shaon, K Ahmed
Hyperemesis gravidarum is the most severe form of nausea and vomiting in pregnancy with poor pregnancy outcome. Hormonal changes, psychological and immunological factors are attributed to the condition. Recently, prevalence of Helicobacter pylori among women with Hyperemesis gravidarum has been revealed. A descriptive, cross-sectional study was carried out at antenatal ward, Department of Obstetrics and Gynaecology, Mymensingh Medical College Hospital, Mymensingh among thirty-six purposively selected patients with Hyperemesis gravidarum to assess the clinic-biochemical profile...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28903546/cellular-and-molecular-mechanisms-of-viral-infection-in-the-human-placenta
#4
Moises León-Juárez, Macario Martínez-Castillo, Luis Didier González-García, Addy Cecilia Helguera-Repetto, Verónica Zaga-Clavellina, Julio García-Cordero, Arturo Flores-Pliego, Alma Herrera-Salazar, Edgar Ricardo Vázquez-Martínez, Enrique Reyes-Muñoz
The placenta is a highly specialized organ that is formed during human gestation for conferring protection and generating an optimal microenvironment to maintain the equilibrium between immunological and biochemical factors for fetal development. Diverse pathogens, including viruses, can infect several cellular components of the placenta, such as trophoblasts, syncytiotrophoblasts and other hematopoietic cells. Viral infections during pregnancy have been associated with fetal malformation and pregnancy complications such as preterm labor...
September 29, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28902929/women-with-recurrent-spontaneous-abortion-have-decreased-25-oh-vitamin-d-and-vdr-at-the-fetal-maternal-interface
#5
N Li, H M Wu, F Hang, Y S Zhang, M J Li
Immunological mechanisms have been proposed to underlie the pathogenesis of recurrent spontaneous abortion (RSA). Vitamin D has a potent immunomodulatory effect, which may affect pregnancy outcome. The objective of this study was to investigate 25-hydroxyvitamin D [25(OH) D] concentration and vitamin D receptor (VDR) expression in the decidual tissues of RSA patients. Thirty women with RSA (RSA group) and thirty women undergoing elective abortion (control group) were recruited during 2016 from gynecology outpatient clinics...
September 12, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28892576/pregnancy-modulates-the-allergen-induced-cytokine-production-differently-in-allergic-and-non-allergic-women
#6
Martina Sandberg Abelius, Malin Jedenfalk, Jan Ernerudh, Camilla Janefjord, Göran Berg, Leif Matthiesen, Maria C Jenmalm
BACKGROUND: The immunological environment during pregnancy may differ between allergic and non-allergic women. This study investigates the effect of maternal allergy on the allergen-induced cytokine and chemokine levels and if pregnancy modulates these immune responses differently in allergic and non-allergic women. METHODS: The birch-, cat-, phytohemagglutinin- and tetanus toxoid-induced interferon-γ (IFN-γ), interleukin-4 (IL)-4, IL-5, IL-10, IL-13, the T-helper 1 (Th1)-associated chemokine CXCL10 and the Th2-associated chemokine CCL17 levels were quantified in 20 women with allergic symptoms (sensitised, n=13) and 36 women without allergic symptoms (non-sensitised, n=30) at gestational weeks 10-12, 15-16, 25, 35 and 2 and 12 months postpartum...
September 11, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28891298/immune-checkpoint-molecule-pd-1-acts-as-a-novel-biomarker-for-the-pathological-process-of-gestational-diabetes-mellitus
#7
Xiaoying Ye, Songwen Ju, Houquan Duan, Yongliang Yao, Jianfen Wu, Shao Zhong, Lei Chen, ShaSha Cao, Yongfang Xu, Xiaocui Zheng, Haiyan Wang, Yan Ge, Songguang Ju
AIM: Accumulating evidence suggested that challenge of the maternal-fetal interaction during pregnancy might cause the impairment of immunological hemostasis and lead to gestational diabetes mellitus (GDM) pathological process. Immune checkpoint molecule PD-1 is one of the critical molecule balancing immune response and immunological tolerance. METHODS: PD-1 expressions on T-cell subsets of GDM patients and control groups were measured via flow cytometric analysis and followed up...
September 11, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28890543/the-altered-pd-1-pd-l1-pathway-delivers-the-one-two-punch-effects-to-promote-the-treg-th17-imbalance-in-pre-eclampsia
#8
Yonghong Zhang, Zhaozhao Liu, Mei Tian, Xiaohui Hu, Liling Wang, Jinlu Ji, Aihua Liao
The programmed cell death-1 (PD-1)/PD-ligand 1 (PD-L1) pathway is critical for normal pregnancy by promoting regulatory T (Treg) cell development and inhibiting the Th17 response. However, the relationship between the PD-1/PD-L1 pathway and the Treg/Th17 imbalance in pre-eclampsia (PE) is an enigma. In this study, decreased PD-1 and PD-L1 expression and a Treg/Th17 imbalance were observed at the maternal-fetal interface in PE. The regulatory effects of the PD-1/PD-L1 pathway on the Treg and Th17 cell quantities were determined in vitro by targeting T-cell proliferation, differentiation and transdifferentiation...
September 11, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28886486/the-seed-to-success-the-role-of-seminal-plasma-in-pregnancy
#9
REVIEW
I Nederlof, T Meuleman, M L P van der Hoorn, F H J Claas, M Eikmans
A lack of immunologic tolerance of the mother toward her child and in placentation can result in early or late pregnancy complications, including implantation failure, miscarriage, preeclampsia, and fetal growth restriction. Seminal plasma has the potential of influencing the maternal immune system for acceptance of the semi-allogeneic fetus. Here we elaborate on studies which provide evidence that an optimal balance of pro-inflammatory and immunomodulatory factors is necessary for the induction of immunologic tolerance and the process of implantation and placentation...
August 24, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28864495/what-to-expect-when-you-re-expecting
#10
REVIEW
Pratip K Chattopadhyay
Applying systems immunology to study human pregnancy.
September 1, 2017: Science Immunology
https://www.readbyqxmd.com/read/28864494/an-immune-clock-of-human-pregnancy
#11
Nima Aghaeepour, Edward A Ganio, David Mcilwain, Amy S Tsai, Martha Tingle, Sofie Van Gassen, Dyani K Gaudilliere, Quentin Baca, Leslie McNeil, Robin Okada, Mohammad S Ghaemi, David Furman, Ronald J Wong, Virginia D Winn, Maurice L Druzin, Yaser Y El-Sayed, Cecele Quaintance, Ronald Gibbs, Gary L Darmstadt, Gary M Shaw, David K Stevenson, Robert Tibshirani, Garry P Nolan, David B Lewis, Martin S Angst, Brice Gaudilliere
The maintenance of pregnancy relies on finely tuned immune adaptations. We demonstrate that these adaptations are precisely timed, reflecting an immune clock of pregnancy in women delivering at term. Using mass cytometry, the abundance and functional responses of all major immune cell subsets were quantified in serial blood samples collected throughout pregnancy. Cell signaling-based Elastic Net, a regularized regression method adapted from the elastic net algorithm, was developed to infer and prospectively validate a predictive model of interrelated immune events that accurately captures the chronology of pregnancy...
September 1, 2017: Science Immunology
https://www.readbyqxmd.com/read/28815848/inflammation-and-fertility-in-the-mare
#12
REVIEW
M Christoffersen, Mht Troedsson
A transient uterine inflammation post-breeding is a normal physiological reaction in the mare, and it is believed that the inflammatory response is necessary to eliminate bacteria and excess spermatozoa introduced into the uterine lumen. A tight balance between multiple pro- and anti-inflammatory factors is required for resolving the breeding-induced inflammation within 24-36 hr in the reproductively healthy mare, whereas a subpopulation of mares is susceptible to development of a persistent infection that can interfere with fertility...
August 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28803708/anti-phospholipid-syndrome-current-opinion-on-mechanisms-involved-laboratory-characterization-and-diagnostic-aspects
#13
REVIEW
Jean Amiral, Marie Peyrafitte, Claire Dunois, Anne Marie Vissac, Jerard Seghatchian
Anti-phospholipid syndrome is a complex and severe clinical situation, associated with symptoms such as recurrent thrombosis, arterial or venous, at any site, pregnancy loss, and other related syndromes. These clinical burdens, are highly variable from patient to patient, and are associated with biological abnormalities, such as the presence of the Lupus Anticoagulant or phospholipid dependent antibodies, confirmed on two occasions at least 12 weeks apart. From the diagnosis standpoint, both, functional (clotting) or immunological assays, are difficult to standardize and to optimize, due to the absence of reference material, or a characteristic clinical group, and international reference preparations...
July 15, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28774548/safety-and-efficiency-of-oocyte-vitrification
#14
REVIEW
Neelke De Munck, Gábor Vajta
As the oocyte is the starting point for a new life, artificial reproductive technology (ART) techniques should not affect the (ultra) structural and functional integrity, or the developmental competence. Oocyte vitrification -one of the most significant achievements in human ART during the past decade- should therefore be a safe and efficient technique. This review discusses the principles and developments of the existing and future techniques, applications possibilities and safety concerns. The broad range of vitrification media and devices that are currently available, show differences in their effects on the oocyte ultrastructure and preimplantation development...
August 1, 2017: Cryobiology
https://www.readbyqxmd.com/read/28754617/infection-by-schistosoma-mansoni-during-pregnancy-effects-on-offspring-immunity
#15
REVIEW
Vanessa Ribeiro Figliuolo da Paz, Danielly Sequeira, Alexandre Pyrrho
About 25 million Brazilians live in areas at risk of contracting the disease caused by the trematoda Schistosoma mansoni, the schistosomiasis mansoni. Although the adult parasites inhabit the blood vessels, probably the main element responsible for the pathology of the disease are the eggs, whose deposition in the liver results in formation of granulomas and hypersensitivity mediated by CD4 T cells. In the course of infection, the profile of T helper 1 (Th1) and Th2 cytokines released by immune cells is correlated with the extent of inflammation in the granuloma and with the disease severity...
July 25, 2017: Life Sciences
https://www.readbyqxmd.com/read/28754005/can-early-omega-3-fatty-acid-exposure-reduce-risk-of-childhood-allergic-disease
#16
REVIEW
Elizabeth A Miles, Philip C Calder
A causal link between increased intake of omega-6 (n-6) polyunsaturated fatty acids (PUFAs) and increased incidence of allergic disease has been suggested. This is supported by biologically plausible mechanisms, related to the roles of eicosanoid mediators produced from the n-6 PUFA arachidonic acid. Fish and fish oils are sources of long chain omega-3 (n-3) PUFAs. These fatty acids act to oppose the actions of n-6 PUFAs particularly with regard to eicosanoid synthesis. Thus, n-3 PUFAs may protect against allergic sensitisation and allergic manifestations...
July 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28729288/urinary-extracellular-vesicles-of-podocyte-origin-and-renal-injury-in-preeclampsia
#17
Sarwat I Gilani, Ulrik Dolberg Anderson, Muthuvel Jayachandran, Tracey L Weissgerber, Ladan Zand, Wendy M White, Natasa Milic, Maria Lourdes Gonzalez Suarez, Rangit Reddy Vallapureddy, Åsa Nääv, Lena Erlandsson, John C Lieske, Joseph P Grande, Karl A Nath, Stefan R Hansson, Vesna D Garovic
Renal histologic expression of the podocyte-specific protein, nephrin, but not podocin, is reduced in preeclamptic compared with normotensive pregnancies. We hypothesized that renal expression of podocyte-specific proteins would be reflected in urinary extracellular vesicles (EVs) of podocyte origin and accompanied by increased urinary soluble nephrin levels (nephrinuria) in preeclampsia. We further postulated that podocyte injury and attendant formation of EVs are related mechanistically to cellfree fetal hemoglobin (HbF) in maternal plasma...
July 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28727206/the-mother-offspring-dyad-microbial-transmission-immune-interactions-and-allergy-development
#18
REVIEW
Maria C Jenmalm
The increasing prevalence of allergy in affluent countries may be caused by reduced intensity and diversity of microbial stimulation, resulting in abnormal postnatal immune maturation. Most studies investigating the underlying immunomodulatory mechanisms have focused on postnatal microbial exposure, for example demonstrating that the gut microbiota differs in composition and diversity during the first months of life in children who later do or do not develop allergic disease. However, it is also becoming increasingly evident that the maternal microbial environment during pregnancy is important in childhood immune programming, and the first microbial encounters may occur already in utero...
July 20, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28726182/autoimmune-hypothyroidism-is-three-times-more-frequent-in-female-prolactinoma-patients-compared-to-healthy-women-data-from-a-cross-sectional-case-control-study
#19
Atanaska Elenkova, Iliana Аtanasova, Georgi Кirilov, Еmil Natchev, Ralitza Ivanova, Roussanka Кovatcheva, Silvia Vandeva, Dimitar Tcharaktchiev, Sabina Zacharieva
BACKGROUND: The potent immunomodulatory action of prolactin has been demonstrated in many experimental in vitro studies. In accordance with these data, our retrospective analyses revealed higher prevalence of autoimmune thyroid diseases in prolactinoma patients compared to general population. PURPOSE: A cross-sectional case-control study was carried out in a single tertiary referral centre. The main aim was to assess the frequency of newly diagnosed autoimmune thyroid diseases in female patients with prolactinomas...
July 19, 2017: Endocrine
https://www.readbyqxmd.com/read/28723925/immunologic-response-to-vaccine-challenge-in-pregnant-ptpn22-r620w-carriers-and-non-carriers
#20
Shelly H Tien, Juliet N Crabtree, Heather L Gray, Erik J Peterson
OBJECTIVES: Influenza infection is a significant cause of respiratory morbidity among pregnant women. Seasonal influenza vaccination engages innate immune receptors to promote protective immunity. A coding polymorphism (R620W) in PTPN22 imparts elevated risk for human infection and autoimmune disease, predisposes to diminished innate immune responses, and associates with reduced immunization responses. We sought to quantify the effects of PTPN22-R620W on humoral and cell-mediated immune responses to the inactivated influenza vaccine among healthy pregnant women...
2017: PloS One
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