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Immunology of pregnancy

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https://www.readbyqxmd.com/read/29131096/women-serum-concentrations-of-the-il-10-family-of-cytokines-and-ifn-%C3%AE-decrease-from-the-third-trimester-of-pregnancy-to-active-labor
#1
José Javier Reyes-Lagos, Miguel Ángel Peña-Castillo, Juan Carlos Echeverría, Gilberto Pérez-Sánchez, Samantha Álvarez-Herrera, Enrique Becerril-Villanueva, Lenin Pavón, Rodrigo Ayala-Yáñez, Ramón González-Camarena, Gustavo Pacheco-López
Labor is regarded as increased myometrial activity with a regular contractility pattern. At this final stage of pregnancy, myometrial quiescence is lost, accompanied by altered immune homeostasis. It is well known that the interleukin (IL)-10 family of cytokines modulates immunological responses mainly in epithelial cells, including the endometrium. To investigate their inflammatory profile during labor, we performed a longitudinal study in a group of healthy pregnant women (n = 20) with uncomplicated pregnancies in the third trimester of pregnancy and during active labor...
November 4, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/29129700/paracetamol-medication-during-pregnancy-insights-on-intake-frequencies-dosages-and-effects-on-hematopoietic-stem-cell-populations-in-cord-blood-from-a-longitudinal-prospective-pregnancy-cohort
#2
Lars Bremer, Janina Goletzke, Christian Wiessner, Mirja Pagenkemper, Christina Gehbauer, Heiko Becher, Eva Tolosa, Kurt Hecher, Petra C Arck, Anke Diemert, Gisa Tiegs
BACKGROUND: Paracetamol is the first choice for antipyretic or analgesic treatment throughout pregnancy. Products with Paracetamol are readily available over the counter and therefore easily accessible for self-medication. Epidemiological data on Paracetamol intake pattern during pregnancy and its potential immunological effects are sparse. We aimed to analyze a possible association between Paracetamol medication and numbers of hematopoietic stem cells (HSC) in cord blood. METHODS: The objective was addressed in the PRINCE (PRENATAL DETERMINANTS OF CHILDREN'S HEALTH) study, a population-based prospective pregnancy cohort study initiated in 2011 at the University Medical Center in Hamburg, Germany...
November 9, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29128634/vitamin-d-receptor-vdr-polymorphisms-are-associated-to-spontaneous-preterm-birth-and-maternal-aspects
#3
N R Javorski, C A D Lima, L V C Silva, S Crovella, J de Azêvedo Silva
Preterm birth (PTB) is featured by less than 37weeks of gestational age or fewer than 259days since the first day from the last menstrual period. Complications of PTB are the major cause of neonatal deaths, several factors are linked to PTB increased risk including immunological and genetics. Vitamin D plays an important role in immune response modulation and its action occurs through the vitamin D receptor (VDR), which recently has been described as overexpressed in human placenta during the pregnancy. Herein we assessed two single nucleotide polymorphisms (SNPs) FokI (rs2228570 A>G) and Cdx-2 (rs11568820 T>C), within VDR, using TaqMan fluorogenic probes, and differential susceptibility to SPTB...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29099629/regulatory-t-cells-improve-pregnancy-rate-in-rif-patients-after-additional-ivig-treatment
#4
Majid Ahmadi, Samaneh Abdolmohammadi-Vahid, Mahnaz Ghaebi, Leili Aghebati-Maleki, Sanam Dolati, Laya Farzadi, Aliyeh Ghasemzadeh, Kobra Hamdi, Vahid Younesi, Mohammad Nouri, Mehdi Yousefi
RIF (repeated implantation failure) women with immunologic basis and cellular abnormalities may benefit from intravenous immunoglobulins (IVIG) as an immunomodulator based on different studies. In this study, we evaluated the effect of IVIG on the frequency and function of Th17 and Treg cells, as two important subgroups of CD4(+) T cells in implantation and pregnancy rates. Seventy-two RIF patients with preconception Th1⁄Th2 ratio and natural killer (NK) cells frequency and activity elevation were selected and divided into two groups; 40 out of 72 received IVIG, aspirin, and heparin (anoxaparin) and constituted the treatment group and 32 patients received aspirin and heparin (anoxaparin) and no IVIG and were the control group...
November 3, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29091144/analysis-of-colostrum-iga-against-bacteria-involved-in-neonatal-infections
#5
Elizabeth Moreira Dias, Denise Bertulucci Rocha Rodrigues, Vinícius Rangel Geraldo-Martins, Ruchele Dias Nogueira
OBJECTIVE: To describe e compare the specificity of IgA antibodies against bacteria extract of Klebsiella pneumoniae , Staphylococcus aureus , Escherichia coli , and Salmonella enteritidis . METHODS: Colostrum samples were aseptically collected in the first 12 hours after C-section delivery. The specificity of IgA against bacteria extracts was analyzed by the Western blot. RESULTS: The findings showed proteins of high molecular weight frequently detectable in the samples...
July 2017: Einstein
https://www.readbyqxmd.com/read/29080885/roles-of-mifepristone-on-the-regulation-of-cytotoxic-lymphocytes-and-regulatory-t-cells
#6
Linxiang Liu, Feng Zhou, Jiale Qin, Zhida Qian, Lili Huang
OBJECTIVE: To investigate the immunologic function of mifepristone, which acts as a contraceptive drug at the level of the decidua. SETTING: In our hospital, 60 women (less than 63 days of amenorrhea) volunteered to terminate their pregnancies by the uterine suction evacuation method. Immunohistochemically, the transcription factor forkhead box P3 and granzyme B staining were performed to identify regulatory T cells and cytotoxic lymphocytes (CLs) in all operational subjects...
October 28, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/29071391/immunometabolism-pregnancy-and-nutrition
#7
REVIEW
Kristin Thiele, Lianghui Diao, Petra Clara Arck
The emerging field of immunometabolism has substantially progressed over the last years and provided pivotal insights into distinct metabolic regulators and reprogramming pathways of immune cell populations in various immunological settings. However, insights into immunometabolic reprogramming in the context of reproduction are still enigmatic. During pregnancy, the maternal immune system needs to actively adapt to the presence of the fetal antigens, i.e., by functional modifications of distinct innate immune cell subsets, the generation of regulatory T cells, and the suppression of an anti-fetal effector T cell response...
October 25, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29065842/effects-of-vaccination-against-the-h1n1-virus-on-bdnf-and-tnf-%C3%AE-plasma-levels-in-pregnant-women
#8
Fernando Machado Vilhena Dias, Mirla Fiuza Diniz, Glaura C Franco, Aline Silva de Miranda, Antonio Lucio Teixeira, Poliana Toledo Nunes, Angela Maria Ribeiro
Vaccination is a widespread strategy to protect women and their children during fetal deve-lopment. However, there is a lack of knowledge about potential effects of H1N1 vaccinati-on on concentration of cytokines that are important to mother's central nervous system functions and fetal neurodevelopment. The main purpose of the present study was to evalu-ate such interaction. The specific goals were to study the effects of vaccination against the H1N1 virus on plasma levels of the Brain Derived Neurotrophic Factor(BDNF), Tumor Necrosis Factor-α (TNF-α) and TNF-α Receptors 1 and 2 (sTNFR1; sTNFR2), in different periods of gestation...
October 20, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/29059580/characteristics-of-peripheral-blood-nk-and-nkt-like-cells-in-euthyroid-and-subclinical-hypothyroid-women-with-thyroid-autoimmunity-experiencing-reproductive-failure
#9
Eva Miko, Matyas Meggyes, Katalin Doba, Nelli Farkas, Barbara Bogar, Aliz Barakonyi, Laszlo Szereday, Julia Szekeres-Bartho, Emese Mezosi
Thyroid autoimmunity (TAI) appears to play a crucial role in female infertility, recurrent pregnancy loss and IVF failure. Thyroid autoantibodies against thyroid peroxidase and thyroglobulin have been shown to represent an independent risk factor for infertility and miscarriage. Moreover, thyroxin hormone administration reduces the risk of obstetrical complications in TAI positive women. The aim of our present study was to investigate the immunological background of female infertility and recurrent pregnancy loss in euthyroid and subclinical hypothyroid women with TAI focusing on innate immunity...
September 28, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29049918/dc-sign-expression-in-hofbauer-cells-may-play-an-important-role-in-immune-tolerance-in-fetal-chorionic-villi-during-the-development-of-preeclampsia
#10
Seung Woo Yang, Eun Hee Cho, So Young Choi, Yun Kyung Lee, Jae Hyun Park, Min Kyung Kim, Jin Yeon Park, Hyeong Jwa Choi, Jeong Ik Lee, Hyun Myung Ko, Seung Hwa Park, Han Sung Hwang, Young Sun Kang
Immune tolerance at feto-maternal interfaces is a complex phenomenon. Although maternal decidual macrophages are well-known immune cells, little is known about fetal-derived macrophages (Hofbauer cells) within chorionic villi. Preeclampsia (PE) is a major cause of maternal mortality in the field of obstetrics, and the innate immunological role of maternal decidual macrophages is well known. In this study, we assessed the differential phenotypes and marker expression in fetal macrophages, known as dendritic cell-specific ICAM-grabbing non-integrin (DC-SIGN)-positive Hofbauer cells...
September 28, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29038842/fertility-after-recurrent-miscarriages-results-of-an-observational-cohort-study
#11
Christiane Kling, Jürgen Hedderich, Dieter Kabelitz
PURPOSE: Recurrent pregnancy losses (RPL) are considered a pathological condition associated with heterogeneous laboratory and clinical findings, and are also linked to subfertility. We attempt to rank parameters derived from past history and diagnostic results with regard to the prognosis. METHODS: Observational trial on 719 consecutive couples who were referred to a tertiary immunological care centre (2006-2014) after three or more primary miscarriages. Information on past obstetric history and diagnostic procedures at baseline were correlated with cumulative pregnancy and delivery rates using Kaplan-Meier estimation, logistic regression and multivariate analysis...
October 16, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29034747/long-term-supplementation-of-rhodiola-kirilowii-extracts-during-pregnancy-and-lactation-does-not-affect-mother-health-status
#12
Sławomir Lewicki, Ewa Skopińska-Różewska, Aneta Lewicka, Robert Zdanowski
Antibiotics treatment during pregnancy and lactation is problematic. The alternative to the antibiotic treatment is the use of plant-derived supplements, which stimulate immune system to prevent and eliminate bacterial infection. Here we evaluated the effect of long-term use of Rhodiola kirilowii on the health of mouse mothers. Pregnant mice were fed daily, for whole pregnancy and for 28 days after giving birth, with Rhodiola kirilowii water (RKW) or hydroalcoholic extract (RKW-A) (at 20 mg of extracts/kg)...
October 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29030775/improvement-in-pregnancy-outcomes-in-couples-with-immunologically-male-infertility-undergoing-prednisolone-treatment-and-conventional-in-vitro-fertilization-preceded-by-sperm-penetration-assay-a-randomized-controlled-trial
#13
Ahmed M Taiyeb, Mundhir T Ridha-Albarzanchi, Shereen M Taiyeb, Zuhair A Kanan, Shahla K Alatrakchi, Michael E Kjelland, Saeeda A Muhsen-Alanssari
PURPOSE: Anti-sperm antibodies (ASA) in men impair not only sperm motility but also fertilization and conception. However, utilization of corticosteroids to suppress ASA has shown variable pregnancy outcomes. This controversy is also extended to include the usefulness of conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in treatments of men with ASA. This study was therefore designed to define factors contributing to these inconsistent results. METHODS: Infertile men having ASA (n = 241) were randomly assigned for treatment with or without prednisolone for three cycles each of 21 days of their partner's menstrual cycles...
October 13, 2017: Endocrine
https://www.readbyqxmd.com/read/29027807/biochemistry-of-the-menopause
#14
John W Honour
The life of a human female is characterized from teenage years by monthly menstruation which ceases (the menopause) typically between the age of 40 and 60 years. The potential for reproduction declines and ceases as the ovaries become depleted of follicles. A transition period in mid-life, for 2 to 10 years, when menstruation is less regular is called the perimenopause. The menopause is associated with a significant decline in plasma concentrations of sex hormones, an increase in the concentrations of the gonadotrophins and changes in other hormones such as the inhibins...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/29024716/accelerated-humoral-renal-allograft-rejection-due-to-hla-c14-mediated-allosensitization-to-hla-bw6
#15
Stephen P Persaud, Brian Duffy, Donna L Phelan, Thalachallour Mohanakumar, Rowena Delos Santos, Joseph P Gaut, Chang Liu
OBJECTIVES: To investigate immunological mechanisms underlying accelerated antibody-mediated rejection (AMR) of a living-related renal allograft in a patient with no detectable antibodies to donor human leukocyte antigens (HLA) in pre-transplant sera. METHODS: Pre- and post-transplant HLA antibody specificities were determined by single-antigen bead assay, and crossmatching was performed by flow cytometry- and complement-dependent cytotoxicity-based methods. Intermediate- and high-resolution HLA typing were performed by molecular methods...
October 9, 2017: Human Immunology
https://www.readbyqxmd.com/read/29020789/-the-role-of-maternal-imunity-and-woman%C3%A2-s-microbiome-in-the-pathogenesis-of-preterm-labor
#16
M Koucký, K Malíčková, J Hrdý, A Černý, H Hrbáčková, P Šimják, A Pařízek
OBJECTIVE: To summarize available data concerning the role of maternal imunity and woman´s microbiome in the pathogenesis of preterm labor and their use in clinical practice. SETTING: Department of Obstetrics and Gynecology od the First Faculty of Medicine, Charles University in Prague, and General Teaching Hospital. DESIGN: Review article. METHODS: Compilation od published data from scientific literature. CONCLUSION: Preterm labor complicates approximately 10% of all pregnancies and represents a serious medical, social and economic problem...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/29020784/-screening-of-endometrial-nk-cells-in-selected-infertile-patients-first-part-methods-and-current-results
#17
Z Ulčová-Gallová, M Pešek, P Chaloupka, P Mukešnábl, M Haschová, P Losan, K Bibková, Z Mičanová, J Cibulka
INTRODUCTION: Generaly, natural killer cells (NK cells) are among the most important cells of our immune defense system. They are present in the blood, decidua but also in secretory endometrium. OBJECTIVE: We investigate an association between high density of NK cells CD56+ and NK cells CD16+ into blood and secretory endometrium in patients with up to now unexplained recurrent miscarriage. At the same time, we focused on diagnosis of antiphospholipid syndrome, congenital trombophilic factors, stress factor, and lenght of hormonal contraception before conception...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28994562/can-unexplained-infertility-be-evaluated-by-a-new-immunological-four-biomarkers-panel-a-pilot-study
#18
Nicoletta Maxia, Stefano Uccella, Gabriele Ersettigh, Mario Fantuzzi, Massimiliano Manganini, Alessandro Scozzesi, Renato Colognato
BACKGROUD: Inflammation and oxidative stress are known to be triggering factors for a decrease of the pregnancy rate like maternal immunosuppression. Under these circumstances our study was performed to verify four immunological biomarkers (IMMUNOX Panel) in terms of incidence in a sine causa infertile population and the overall pregnancy rate when the Panel was showing some non-physiologic values. METHODS: Sera of 86 women affected by unexplained infertility were screened for the IMMUNOX panel of biomarkers composed by: TNF-α, Glycodelin (GLY), Total Oxidative Status (TOS) and Complement Activity Toxic Factor (CATF)...
October 9, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28994560/epidemiology-and-pathogenesis-of-fulminant-viral-hepatitis-in-pregnant-women-a-review
#19
Grazia Tosone, Davide Simeone, Anna M Spera, Giulio Viceconte, Vincenzo Bianco, Raffaele Orlando
The pregnancy-associated immunological and hormonal changes may alter the immune response to infectious agents, including hepatitis viruses. Therefore, this phenomenon may affect the clinical course and the outcome of acute viral hepatitis in pregnant women. For this reason, we have focused on epidemiological and pathogenetic aspects of the fulminant liver failure caused by acute viral hepatitis reviewing PubMED in April of 2017. Although all the viruses might cause a fulminant AVH in a pregnant woman, the large majority of fulminant failure reported in the literature had been related to Hepatits E Virus mainly and had been concentrated in Indian subcontinent and some African areas, whereas the problem seems to be very low or absent in the remaining geographical areas...
October 9, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28984865/malaria-in-pregnancy-the-relevance-of-animal-models-for-vaccine-development
#20
Justin Doritchamou, Andrew Teo, Michal Fried, Patrick E Duffy
Malaria during pregnancy due to Plasmodium falciparum or P. vivax is a major public health problem in endemic areas, with P. falciparum causing the greatest burden of disease. Increasing resistance of parasites and mosquitoes to existing tools, such as preventive antimalarial treatments and insecticide-treated bed nets respectively, is eroding the partial protection that they offer to pregnant women. Thus, development of effective vaccines against malaria during pregnancy is an urgent priority. Relevant animal models that recapitulate key features of the pathophysiology and immunology of malaria in pregnant women could be used to accelerate vaccine development...
October 6, 2017: Lab Animal
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