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Immunology of pregnancy

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https://www.readbyqxmd.com/read/27931277/american-academy-of-allergy-asthma-immunology-membership-experience-with-allergen-immunotherapy-safety-in-patients-with-specific-medical-conditions
#1
Dsire E S Larenas-Linnemann, David W Hauswirth, Christopher W Calabria, Lawrence D Sher, Matthew A Rank
BACKGROUND: Little data in the literature exist concerning patients with certain underlying medical conditions who receive allergen subcutaneous immunotherapy (SCIT). OBJECTIVE: To survey allergists' experience with SCIT in patients with medical conditions considered to impose an elevated risk for untoward outcomes. METHODS: A Web-based survey was conducted among members of the American Academy of Allergy, Asthma Immunology to query about their experience with SCIT in patients with certain medical conditions...
September 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27931054/-tb-screening-of-pregnant-women-in-accordance-with-the-german-protection-against-infection-act
#2
(no author information available yet)
Pregnant women should be tested with immune tests for tuberculosis when they undergo TB screening according to the German Infectious Diseases Protection Act. Interferon Gamma Release Assays (IGRAs) should be the priority tests used for pregnant refugees and asylum seekers, especially when migrating from high incidence countries (> 20 cases/100.000 population according to the ECDC) or when they fled from crisis regions; positive tuberculin skin tests should be veryfied with IGRA. Once immunological tests are suggesting a latent tuberculosis infection it should be considered that pregnant women have an increased risk of developing active tuberculosis with potential health threats for the unborn child...
December 2016: Pneumologie
https://www.readbyqxmd.com/read/27929742/why-when-and-for-what-diseases-pregnant-and-new-mothers-should-be-vaccinated
#3
Giovanni Gabutti, Giorgio Conforti, Alberto Tomasi, Parvanè Kuhdari, Paolo Castiglia, Rosa Prato, Silvia Memmini, Chiara Azzari, Giovanni Vitali Rosati, Paolo Bonanni
Immunological and serological changes that occur during pregnancy can alter the susceptibility of both the mother and the fetus against various infectious diseases. The pregnant woman has an altered immune response and, for some pathologies, is at increased risk of infection and of developing complications and serious outcomes. In addition, maternal infections can result in congenital anomalies, malformations or severe neonatal diseases. Vaccination of pregnant women can therefore have a double goal: to protect the mother from diseases that could have an impact on her health and to avoid infection/disease transmission to the fetus or the newborn...
December 8, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27924673/postnatal-outcome-and-placental-blood-flow-after-plasmapheresis-during-pregnancy
#4
Mária Jakó, Andrea Surányi, Márta Janáky, Péter Klivényi, László Kaizer, László Vécsei, György Bártfai, Gábor Németh
PURPOSE: Plasmapheresis in pregnancy adversely affects maternal hemodynamics, however there are studies suggesting it to reduce pregnancy loss in immunological diseases when medication is more harmful to the fetus. The overall optimal plasmapheresis treatment protocol remains unknown. MATERIALS AND METHODS: A pregnant with neuromyelitis optica was followed up after receiving six volumes of fresh frozen plasma via plasmapheresis. RESULTS: The placenta compensated the hemodynamic change until the 33rd week of gestation, resulting a small for gestational age, otherwise healthy girl...
December 7, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27921411/association-of-cd46-ivs1-1724-c-g-single-nucleotide-polymorphism-in-iranian-women-with-unexplained-recurrent-spontaneous-abortion-ursa
#5
Shiva Abdi-Shayan, Amir Monfaredan, Zahra Moradi, Mehrangiz Rajaii Oskoui, Tohid Kazemi
There are several known and unknown factors for unexplained recurrent spontaneous abortion (URSA). Among them, complement regulatory protein CD46 plays a pivotal role in preventing uncontrolled activation of complement and successful continuation of pregnancy. We aimed in this study to investigate the possible association of CD46 IVS1-1724 C>G polymorphism with RSA in Iranian women. 141 women with RSA and 153 women with normal pregnancy were enrolled in this study. RSA was confirmed as the history of having at least three consecutive abortions without any known immunologic, pathologic and genetic reason...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27915039/uterine-immune-profiling-for-increasing-live-birth-rate-a-one-to-one-matched-cohort-study
#6
Nathalie Lédée, Laura Prat-Ellenberg, Lucie Chevrier, Richard Balet, Cynthia Simon, Clarisse Lenoble, Elie El Irani, Dominique Bouret, Guy Cassuto, Dominique Vitoux, Katia Vezmar, Armand Bensussan, Gérard Chaouat, Marie Petitbarat
BACKGROUND: Embryo implantation remains the main limiting factor in IVF/ICSI program. Endometrial immune remodeling events begin before implantation and are a vital process for pregnancy, preparing future maternal immune tolerance and regulating the placentation process. METHODS: Between 2012 and 2014, 193 patients (analyzed group) enrolled in our IVF program benefitted of an endometrial immune profiling to determine if their uterus was immunologically ready to accept an embryo and, if not, the specific immune mechanisms involved...
November 24, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/27914916/-cytotoxicity-of-natural-anti-hla-antibodies-in-moroccan-patients-awaiting-for-kidney-transplantation
#7
Nadia Benseffaj, Sanae Ouadghiri, Asmaa Drissi Bourhanbour, Asmae Noor Zerrouki, Malika Essakalli
: The presence of anti-HLA antibodies in the serum of a patient result from an immune response produced during an immunizing event as transfusion, pregnancy or graft. These antibodies can be cytotoxic by activating the complement pathway via C1q and may cause organ rejection during the transplant. Some male patients awaiting kidney transplantation are seropositive for anti-HLA antibodies when they have no immunizing antecedent event. These antibodies are qualified as natural antibodies...
November 30, 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27905000/decidual-natural-killer-cells-and-the-immune-microenvironment-at-the-maternal-fetal-interface
#8
REVIEW
Binqing Fu, Haiming Wei
During early pregnancy, an orchestrated evolutionary maternal adaption toward tolerance of the semiallogeneic fetus is required to ensure decidualization and early embryo development. Remodeling of the immune system involves natural killer cells (NKs), macrophages, T cells and dendritic cells (DCs) altering the microenvironment in the deciduas. In particular, a unique population of NK cells with a CD56(bright)CD16(-) phenotype in the decidua has been proposed to play a key role in the maternal adaptation to pregnancy...
November 29, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27902502/zika-virus-and-patient-blood-management
#9
Lawrence T Goodnough, Marisa B Marques
Sporadic Zika virus infections had only occurred in Africa and Asia until an outbreak in Micronesia (Oceania) in 2007. In 2013 to 2014, several outer Pacific Islands reported local outbreaks. Soon thereafter, the virus was likely introduced in Brazil from competing athletes from French Polynesia and other countries that participated in a competition there. Transmission is thought to have occurred through mosquito bites and spread to the immunologically naive population. Being also a flavivirus, the Zika virus is transmitted by the Aedes mosquito that is endemic in South and Central America that is also the vector of West Nile virus, dengue, and chikungunya...
November 29, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27893488/pregnancy-and-hiv-disease-progression-in-an-early-infection-cohort-from-five-african-countries
#10
Kristin M Wall, Wasima Rida, Lisa Haddad, Anatoli Kamali, Etienne Karita, Shabir Lakhi, William Kilembe, Susan Allen, Mubiana Inambao, Annie H Yang, Mary H Latka, Omu Anzala, Eduard J Sanders, Linda-Gail Bekker, Vinodh A Edward, Matt A Price
BACKGROUND: Understanding associations between pregnancy and HIV disease progression is critical to providing appropriate counseling and care to HIV-positive women. METHODS: From 2006-2011, women under age 40 with incident HIV infection were enrolled in an early HIV infection cohort in Kenya, Rwanda, South Africa, Uganda, and Zambia. Time-dependent Cox models evaluated associations between pregnancy and HIV disease progression. Clinical progression was defined as a single CD4 measurement <200 cells/μL, percent CD4 <14%, or category C event, with censoring at antiretroviral (ART) initiation for reasons other than prevention of mother-to-child transmission (PMTCT)...
November 22, 2016: Epidemiology
https://www.readbyqxmd.com/read/27871460/placental-histological-lesions-in-fetal-and-neonatal-alloimmune-thrombocytopenia-a-retrospective-cohort-study-of-21-cases
#11
Estelle Dubruc, Frédérique Lebreton, Catherine Giannoli, Muriel Rabilloud, Cyril Huissoud, Mojgan Devouassoux-Shisheboran, Fabienne Allias
BACKGROUND: Alloimmunization against human platelet antigens (HPAs) can occur prenatally and induce fetal/neonatal alloimmune thrombocytopenia (FNAIT). The aim of this study was to identify placental histological features associated with platelet alloimmunization and their clinical significance. METHODS: This study examined 21 placentas from FNAIT-affected pregnancies and 42 age-matched control cases, all collected from pathology departments in the Rhône-Alpes region...
December 2016: Placenta
https://www.readbyqxmd.com/read/27870929/a-clinical-study-of-cutaneous-changes-in-pregnancy
#12
Vinitha V Panicker, Najeeba Riyaz, P K Balachandran
BACKGROUND/OBJECTIVE: Pregnant women experience a myriad of physiological and metabolic changes that affect different organ systems in the body. Cutaneous and appendageal alterations that manifest during pregnancy are largely modulated by hormonal, immunologic, and metabolic factors. Detailed reports encompassing physiological changes and specific dermatoses of pregnancy and effects of various dermatoses on pregnant women are scanty in literature. This study was conducted to examine in detail both physiological changes and specific dermatoses...
November 18, 2016: Journal of Epidemiology and Global Health
https://www.readbyqxmd.com/read/27865861/mid-pregnancy-and-cord-blood-immunological-biomarkers-hla-genotype-and-pediatric-celiac-disease
#13
Karl Mårild, Maria Vistnes, German Tapia, Øivind Midttun, Per M Ueland, Marte K Viken, Per Magnus, Jens P Berg, Lars C Stene, Ketil Størdal
This first investigation of multiple biomarkers reflecting cellular and humoral immune activation in mid-pregnancy or at birth do not support concerns that the prenatal systemic immune response influences celiac disease development in children.
November 16, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27865347/gestational-food-restriction-decreases-placental-interleukin-10-expression-and-markers-of-autophagy-and-endoplasmic-reticulum-stress-in-murine-intrauterine-growth-restriction
#14
Alison Chu, Shanthie Thamotharan, Amit Ganguly, Madhuri Wadehra, Matteo Pellegrini, Sherin U Devaskar
Intrauterine growth restriction (IUGR) affects up to 10% of pregnancies and often results in short- and long-term sequelae for offspring. The mechanisms underlying IUGR are poorly understood, but it is known that healthy placentation is essential for nutrient provision to fuel fetal growth, and is regulated by immunologic inputs. We hypothesized that in pregnancy, maternal food restriction (FR) resulting in IUGR would decrease the overall immunotolerant milieu in the placenta, leading to increased cellular stress and death...
October 2016: Nutrition Research
https://www.readbyqxmd.com/read/27859042/hla-g-promotes-myeloid-derived-suppressor-cell-mdsc-accumulation-and-suppressive-activity-during-human-pregnancy-through-engagement-of-the-receptor-ilt4
#15
Natascha Köstlin, Anna-Lena Ostermeir, Bärbel Spring, Julian Schwarz, Alexander Marmé, Christina B Walter, Christian F Poets, Christian Gille
Establishing and maintaining maternal-fetal tolerance is essential for a successful pregnancy; failure of immunological adaptation to pregnancy leads to severe complications such as abortion or preterm delivery. Myeloid-derived suppressor cells (MDSCs) are innate immune cells that suppress T-cell responses, expand during pregnancy and thus may play a role in tolerance induction. Human leucocyte antigen G (HLA-G) is a major histocompatibility complex (MHC) I molecule with immune-modulatory properties, which is expressed during pregnancy...
November 10, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27832763/a-comparison-of-intestinal-microbiota-in-a-population-of-low-risk-infants-exposed-and-not-exposed-to-intrapartum-antibiotics-the-baby-microbiota-of-the-intestine-cohort-study-protocol
#16
Julia Simioni, Eileen K Hutton, Elizabeth Gunn, Alison C Holloway, Jennifer C Stearns, Helen McDonald, Andrea Mousseau, Jonathan D Schertzer, Elyanne M Ratcliffe, Lehana Thabane, Michael G Surette, Katherine M Morrison
BACKGROUND: The intestinal microbiota influences metabolic, nutritional, and immunologic processes and has been associated with a broad range of adverse health outcomes including asthma, obesity and Type 2 diabetes. Early life exposures may alter the course of gut microbial colonization leading to differences in metabolic and immune regulation throughout life. Although approximately 50 % of low-risk full-term infants born in Canada are exposed to intrapartum antibiotics, little is known about the influence of this common prophylactic treatment on the developing neonatal intestinal microbiota...
November 10, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27831835/imaging-of-neurologic-conditions-in-pregnant-patients
#17
Sangam Kanekar, Shante Bennett
A number of physiologic, hormonal, immunologic, and hemodynamic changes take place in the maternal body during pregnancy. The majority of these changes are essential for maintaining the normal course of pregnancy. However, these changes may also cause acute or chronic conditions that affect various biologic systems in the mother. In addition, conditions of the central and peripheral nervous systems can cause a variety of neurologic symptoms and complications. Neurologic signs and symptoms in pregnant and postpartum women may be due to the exacerbation of a preexisting medical condition, the initial manifestation of a primary central nervous system-related problem, or a neurologic problem unique to pregnancy and the postpartum period...
November 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27819791/-effectiveness-of-a-rapid-response-team-rrt-in-a-case-of-ruptured-ectopic-pregnancy
#18
José Miguel Campechano-López, María Lourdes Carranza-Bernal, Guillermina Juanico-Morales, María Rayo Reyes-Gil
BACKGROUND: An ectopic pregnancy happens when a fertilized egg attaches somewhere outside the endometrial surface. This sort of pregnancy has an estimated incidence of 1.6 to 2 each 100 births. The main objective was to expose the effective answer of a Rapid Response Team in a case of ruptured cervical ectopic pregnancy. We also describe a clinical case of this sort of pregnancy. CLINICAL CASE: 37-year-old female with a two-month history of amenorrhea. The patient entered the Labor & Delivery department with hypovolemic shock secondary to vaginal bleeding...
November 2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27819282/characterization-of-t-follicular-helper-cells-in-allogeneic-normal-pregnancy-and-pdl1-blockage-induced-abortion
#19
Weihong Zeng, Zhicui Liu, Siming Zhang, Jiabin Ren, Xiaoling Ma, Chuanmei Qin, Fuju Tian, Yan Zhang, Yi Lin
A deeper understanding of the immunological events during pregnancy will provide novel insights into the pathogenesis of pregnancy complications. The fundamental function of T follicular helper (Tfh) cells is to provide cognate help to B cells. Dysregulations of Tfh-cell function and/or development can result in various immunological diseases. However, the role and characteristics of Tfh cells during pregnancy remain unknown. Herein, an allogeneic-normal-pregnant mouse model was used, and we found that the CD4(+) T cells residing at the uterus and placenta (UP) displayed a Tfh-like phenotype; and the UP-derived CD4(+)CXCR5(hi)PD-1(hi) and CD4(+)CXCR5(hi)ICOS(hi) Tfh cells, which showed a memory/activation phenotype, reached their peak at mid-pregnancy...
November 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27817215/biological-therapy-targeting-the-il-23-il-17-axis-in-inflammatory-bowel-disease
#20
Bram Verstockt, Gert Van Assche, Séverine Vermeire, Marc Ferrante
As many inflammatory bowel disease (IBD) patients do not benefit from long-term anti-tumour necrosis factor treatment, new anti-inflammatories are urgently needed. After the discovery of the interleukin (IL) 23/17 axis being pivotal in IBD pathogenesis, many different compounds were developed, targeting different components within this pathway. Areas covered: A literature search to March 2016 was performed to identify the most relevant reports on the role of the IL-23/IL-17 axis in IBD and on the different molecules targeting this pathway...
November 18, 2016: Expert Opinion on Biological Therapy
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