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https://www.readbyqxmd.com/read/29761674/screening-arab-israeli-pregnant-women-for-group-b-streptococcus-by-the-amplivue-gbs-assay-are-the-rates-higher-than-the-national-average
#1
Marwan Hakim, Adel Jabour, Miriam Anton, Meggie Hakim, Sahar Kheirallah
BACKGROUND: The recommendation of the U.S. Centers for Disease Control and Prevention regarding universal screening for Group B Streptococcus (GBS) at 35-37 weeks gestational age in pregnancy is not accepted in Israel. The National Council for Obstetrics, Neonatology and Genetics recommends intrapartum prophylaxis, mainly based on risk factors, to prevent early neonatal GBS infection. This policy is based on past studies demonstrating low colonization rates of the bacteria in Israeli pregnant women and very low neonatal sepsis rates...
May 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29743241/new-insights-into-the-regulation-of-placental-growth-factor-gene-expression-by-the-transcription-factors-gcm1-and-dlx3-in-human-placenta
#2
Yueh-Ho Chiu, Ming-Ren Yang, Liang-Jie Wang, Ming-Hon Chen, Geen-Dong Chang, Hungwen Chen
Expression of placental growth factor (PGF) is closely associated with placental perfusion in early pregnancy. PGF is primarily expressed in placental trophoblasts, and its expression decreases in preeclampsia, associated with placental hypoxia. The transcription factors glial cells missing 1 (GCM1) and metal-regulatory transcription factor 1 (MTF1) have been implicated in the regulation of PGF gene expression through regulatory elements upstream and downstream of the PGF transcription start site, respectively...
May 9, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29667377/the-usefulness-of-determination-of-the-procalcitonin-pct-concentration-in-gbs-piositive-pregnant-womens-blood-serum-for-anticipations-of-infections-in-newborns
#3
Wojciech Cnota, Dominika Mucha, Jan Mucha
Group-B streptococci (GBS) are commensal bacteria of the human body. They may, however, pose a serious life hazard to pregnant women. During labour, newborns of GBS-positive mothers run the risk of infections that may eventually lead to severe complications, sepsis or even death. For this reason, it is very important to find new diagnostic markers that will enable fast and effective diagnostics and control of the disease process. The level of procalcitonin emerges as a promising diagnostic parameter. AIM. Analysis of the impact of the procalcitonin (PCT) level in GBS-positive pregnant women on the possibility of complications and infections in mothers and newborns MATERIAL AND METHODS...
2018: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/29629904/group-b-streptococcus-exploits-vaginal-epithelial-exfoliation-for-ascending-infection
#4
Jay Vornhagen, Blair Armistead, Verónica Santana-Ufret, Claire Gendrin, Sean Merillat, Michelle Coleman, Phoenicia Quach, Erica Boldenow, Varchita Alishetti, Christina Leonhard-Melief, Lisa Y Ngo, Christopher Whidbey, Kelly S Doran, Chad Curtis, Kristina M Adams Waldorf, Elizabeth Nance, Lakshmi Rajagopal
Thirteen percent of pregnancies result in preterm birth or stillbirth, accounting for fifteen million preterm births and three and a half million deaths annually. A significant cause of these adverse pregnancy outcomes is in utero infection by vaginal microorganisms. To establish an in utero infection, vaginal microbes enter the uterus by ascending infection; however, the mechanisms by which this occurs are unknown. Using both in vitro and murine models of vaginal colonization and ascending infection, we demonstrate how a vaginal microbe, group B streptococcus (GBS), which is frequently associated with adverse pregnancy outcomes, uses vaginal exfoliation for ascending infection...
April 9, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29609583/risk-factors-for-neonatal-early-onset-group-b-streptococcus-related-diseases-after-the-implementation-of-a-universal-screening-program-in-taiwan
#5
Li-Chen Hung, Pei-Tseng Kung, Tsan-Hung Chiu, Hsun-Pi Su, Ming Ho, Hui-Fen Kao, Li-Ting Chiu, Kuang-Hua Huang, Wen-Chen Tsai
BACKGROUND: We examined the risk for Group B streptococcus (GBS)-related diseases in newborns born to mothers who participated in a universal GBS screening program and to determine whether differences are observed in factors affecting the morbidity for neonatal early-onset GBS-related diseases. METHODS: This is a retrospective study and the study subjects were women who had undergone GBS screening and who gave birth naturally and their newborns between April 15, 2012 and December 31, 2013...
April 2, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29595087/group-b-streptococci-cultured-in-urine-during-pregnancy-associated-with-preterm-delivery-a-selection-problem
#6
Mohammed R Khalil, Niels Uldbjerg, Jens K Møller, Poul B Thorsen
OBJECTIVE: To investigate an association between Group B streptococci in urine culture during pregnancy and preterm delivery. METHODS: A population-based cohort consisted of all pregnant women (n = 36 097) from the catchment area of Lillebaelt Hospital, Denmark, during the period January 2002 -December 2012. The cohort of 34 285 singleton pregnancies used in this study was divided into three groups. Group I (N = 249) included women whose urine culture was positive for Group B streptococci (GBS); group II (N = 5765) included women whose urine culture was negative for GBS; and group III (N = 28 271) included women whose urine had not been cultured during pregnancy...
March 29, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29518067/update-noncongenital-zika-virus-disease-cases-50-u-s-states-and-the-district-of-columbia-2016
#7
Victoria Hall, William L Walker, Nicole P Lindsey, Jennifer A Lehman, Jonathan Kolsin, Kimberly Landry, Ingrid B Rabe, Susan L Hills, Marc Fischer, J Erin Staples, Carolyn V Gould, Stacey W Martin
Zika virus is a flavivirus primarily transmitted to humans by Aedes aegypti mosquitoes (1). Zika virus infections also have been documented through intrauterine transmission resulting in congenital infection; intrapartum transmission from a viremic mother to her newborn; sexual transmission; blood transfusion; and laboratory exposure (1-3). Most Zika virus infections are asymptomatic or result in mild clinical illness, characterized by acute onset of fever, maculopapular rash, arthralgia, or nonpurulent conjunctivitis; Guillain-Barré syndrome, meningoencephalitis, and severe thrombocytopenia rarely have been associated with Zika virus infection (1)...
March 9, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29480905/management-of-term-infants-at-increased-risk-for-early-onset-bacterial-sepsis
#8
Ann L Jefferies
Early-onset neonatal bacterial sepsis (EOS) is sepsis occurring within the first 7 days of life. This statement provides updated recommendations for the care of term (≥37 weeks' gestational age) newborns at risk of EOS, during the first 24 hours of life. Maternal Group B streptococcus (GBS) colonization in the current pregnancy, GBS bacteriuria, a previous infant with invasive GBS disease, prolonged rupture of membranes (≥18 hours) and maternal fever (temperature ≥38°C) are the factors most commonly associated with EOS...
July 2017: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29447722/no-276-management-of-group-b-streptococcal-bacteriuria-in-pregnancy
#9
Victoria M Allen, Mark H Yudin
OBJECTIVE: To provide information regarding the management of group B streptococcal (GBS) bacteriuria to midwives, nurses, and physicians who are providing obstetrical care. OUTCOMES: The outcomes considered were neonatal GBS disease, preterm birth, pyelonephritis, chorioamnionitis, and recurrence of GBS colonization. EVIDENCE: Medline, PubMed, and the Cochrane database were searched for articles published in English to December 2010 on the topic of GBS bacteriuria in pregnancy...
February 2018: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29433695/zika-en-p%C3%A3-diatrie-que-retenir
#10
P Minodier
Zikavirus (ZV) is a flavivirus transmitted by Aedes mosquitoes' bites. Sexual transmission is possible. Common ZV infection is asymptomatic or associates flu-like signs. Guillain-Barre syndrome following ZV infection is rare. Foetal infection, during the first trimester of pregnancy especially, can lead to severe neurological troubles. Diagnosis relies on blood and urine RT-PCR during the acute phase, and serology later in the disease. ELISA assays false positives are reported among patients infected with another flavivirus, whereas sero-neutralization is more specific...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29425317/human-cervical-mucus-plugs-exhibit-insufficiencies-in-antimicrobial-activity-towards-group-b-streptococcus
#11
Jay Vornhagen, Phoenicia Quach, Verónica Santana-Ufret, Varchita Alishetti, Alyssa Brokaw, Blair Armistead, Hai Qing Tang, James W MacDonald, Theo K Bammler, Kristina M Adams Waldorf, Niels Uldbjerg, Lakshmi Rajagopal
Preterm birth is a leading cause of neonatal mortality and lacks an effective therapy. Ascending microbial infections from the lower genital tract lead to infection of the placenta, amniotic fluid, and fetus causing preterm birth or stillbirth. Directly in the path of an ascending infection is the cervical mucus plug (CMP), a dense mucoid structure in the cervical canal with potential antimicrobial properties. In this study, we aimed to define the components of CMP responsible for antimicrobial activity against a common lower genital tract organism associated with preterm birth and stillbirths, namely, group B streptococcus (GBS)...
April 23, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29416049/protective-effect-of-group-b-streptococcus-type-iii-polysaccharide-conjugates-against-maternal-colonization-ascending-infection-and-neonatal-transmission-in-rodent-models
#12
Emiliano Chiarot, Angela Spagnuolo, Silvia Maccari, Eleonora Naimo, Alessandra Acquaviva, Raffaella Cecchi, Bruno Galletti, Monica Fabbrini, Elena Mori, Paolo Ruggiero, Guido Grandi, Maria Rita Fontana, Giuliano Bensi, Immaculada Margarit
Group B Streptococcus (GBS) is a normal inhabitant of recto-vaginal mucosae in up to 30% of healthy women. Colonization is a major risk factor for perinatal infection which can lead to severe complications such as stillbirth and neonatal invasive disease. Intra-partum antibiotic prophylaxis in colonized women is a safe and cost-effective preventive measure against early-onset disease in the first days of life, but has no effect on late-onset manifestations or on early maternal infection. Maternal immunization with capsular polysaccharide-based vaccines shows promise for the prevention of both early-onset and late-onset neonatal infections, although ability to prevent maternal colonization and ascending infection has been less studied...
February 7, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29398277/maternal-immunization-against-group-b-streptococcus-world-health-organization-research-and-development-technological-roadmap-and-preferred-product-characteristics
#13
REVIEW
Johan Vekemans, Vasee Moorthy, Martin Friede, Mark R Alderson, Ajoke Sobanjo-Ter Meulen, Carol J Baker, Paul T Heath, Shabir A Madhi, Kirsty Mehring-Le Doare, Samir K Saha, Stephanie Schrag, David C Kaslow
Group B streptococcus, found in the vagina or lower gastrointestinal tract of about 10-40% of women of reproductive age, is a leading cause of early life invasive bacterial disease, potentially amenable to prevention through maternal immunization during pregnancy. Following a consultation process with global stakeholders, the World Health Organization is herein proposing priority research and development pathways and preferred product characteristics for GBS vaccines, with the aim to facilitate and accelerate vaccine licensure, policy recommendation for wide scale use and implementation...
February 2, 2018: Vaccine
https://www.readbyqxmd.com/read/29343192/coverage-and-outcomes-of-antenatal-tests-for-infections-a-population-based-survey-in-the-province-of-trento-italy
#14
Michela Dalmartello, Fabio Parazzini, Mariangela Pedron, Riccardo Pertile, Lucia Collini, Carlo La Vecchia, Silvano Piffer
BACKGROUND: Rubella, syphilis, toxoplasmosis, cytomegalovirus (CMV), hepatitis B (HBV) and C (HCV), HIV, and Group B Streptococcus (GBS) infections may have very severe outcomes during pregnancy, and for this reason, monitoring of infections in pregnant women is a requirement of prenatal assistance. AIMS: To describe coverage and outcome of the screening for rubella, syphilis, toxoplasmosis, CMV, HBV, HCV, HIV, and Group B Streptococcus in pregnancy in the Autonomous Province of Trento, Northern Italy (538,600 inhabitants)...
January 17, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29305550/comparison-of-four-serological-methods-and-two-reverse-transcription-pcr-assays-for-diagnosis-and-surveillance-of-zika-virus-infection
#15
Angel Balmaseda, José Victor Zambrana, Damaris Collado, Nadezna García, Saira Saborío, Douglas Elizondo, Juan Carlos Mercado, Karla Gonzalez, Cristhiam Cerpas, Andrea Nuñez, Davide Corti, Jesse J Waggoner, Guillermina Kuan, Raquel Burger-Calderon, Eva Harris
Zika virus (ZIKV) is a mosquito-borne flavivirus that is responsible for recent explosive epidemics in the Americas. Notably, ZIKV infection during pregnancy has been found to cause congenital birth defects, including microcephaly, and ZIKV has been associated with Guillain-Barré syndrome in adults. Diagnosis and surveillance of Zika in the Americas have been challenging due to similar clinical manifestations and extensive antibody cross-reactivity with endemic flaviviral diseases, such as dengue. We evaluated four serological and two reverse transcription-PCR (RT-PCR) methods in acute-phase (mean day, 1...
March 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29297541/miller-fisher-syndrome-after-coronary-artery-bypass-surgery
#16
Mustafa Aldag, Sebnem Albeyoglu, Ufuk Ciloglu, Hakan Kutlu, Levent Ceylan
Miller-Fisher syndrome (MFS) is an uncommon neurological disorder that is considered a variant of the Guillain-Barre syndrome (GBS). It is clinically defined by a triad of symptoms, namely ataxia, areflexia and ophthalmoplegia. These acute inflammatory polyradiculopathic syndromes can be triggered by viral infections, major surgery, pregnancy or vaccination. While the overall incidence of GBS is 1.2-2.3 per 100 000 per year, MFS is a relatively rare disorder. Only six cases of GBS after cardiac surgery have been reported, and to our knowledge, we describe the first case of MFS after coronary artery bypass surgery...
November 23, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29288700/erythrosin-b-is-a-potent-and-broad-spectrum-orthosteric-inhibitor-of-the-flavivirus-ns2b-ns3-protease
#17
Zhong Li, Srilatha Sakamuru, Ruili Huang, Matthew Brecher, Cheri A Koetzner, Jing Zhang, Haiying Chen, Cheng-Feng Qin, Qing-Yu Zhang, Jia Zhou, Laura D Kramer, Menghang Xia, Hongmin Li
Many flaviviruses, such as Zika virus (ZIKV), Dengue virus (DENV1-4) and yellow fever virus (YFV), are significant human pathogens. Infection with ZIKV, an emerging mosquito-borne flavivirus, is associated with increased risk of microcephaly in newborns and Guillain-Barré syndrome and other complications in adults. Currently, specific therapy does not exist for any flavivirus infections. In this study, we found that erythrosin B, an FDA-approved food additive, is a potent inhibitor for flaviviruses, including ZIKV and DENV2...
February 2018: Antiviral Research
https://www.readbyqxmd.com/read/29193647/the-incidence-characteristics-management-and-outcomes-of-anaphylaxis-in-pregnancy-a-population-based-descriptive-study
#18
S J McCall, K J Bunch, P Brocklehurst, R D'Arcy, K Hinshaw, J J Kurinczuk, D N Lucas, B Stenson, D J Tuffnell, M Knight
OBJECTIVE: The aim of this study was to estimate the incidence of anaphylaxis in pregnancy and describe the management and outcomes in the UK. DESIGN: A population-based descriptive study using the UK Obstetric Surveillance System (UKOSS). SETTING: All consultant-led maternity units in the UK. POPULATION: All pregnant women who had anaphylaxis between 1 October 2012 and 30 September 2015. Anaphylaxis was defined as a severe, life-threatening generalised or systemic hypersensitivity reaction...
November 29, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29184151/association-between-antibodies-against-group-b-streptococcus-surface-proteins-and-recto-vaginal-colonisation-during-pregnancy
#19
Sonwabile Dzanibe, Gaurav Kwatra, Peter V Adrian, Sheila Z Kimaro-Mlacha, Clare L Cutland, Shabir A Madhi
Group B Streptococcus (GBS) recto-vaginal colonisation in pregnant women is the major risk factor for early-onset invasive GBS disease in their newborns. We aimed to determine the association between serum antibody levels against 11 GBS surface proteins and recto-vaginal acquisition of GBS colonisation during pregnancy. Sera collected from pregnant women at 20-25 weeks and ≥37 weeks of gestation age were measured for IgG titres against GBS surface proteins using  a multiplex immunoassay. Women were evaluated for recto-vaginal colonisation every 4-5 weeks...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184093/intrapartum-antibiotics-for-gbs-prophylaxis-alter-colonization-patterns-in-the-early-infant-gut-microbiome-of-low-risk-infants
#20
Jennifer C Stearns, Julia Simioni, Elizabeth Gunn, Helen McDonald, Alison C Holloway, Lehana Thabane, Andrea Mousseau, Jonathan D Schertzer, Elyanne M Ratcliffe, Laura Rossi, Michael G Surette, Katherine M Morrison, Eileen K Hutton
Early life microbial colonization and succession is critically important to healthy development with impacts on metabolic and immunologic processes throughout life. A longitudinal prospective cohort was recruited from midwifery practices to include infants born at full term gestation to women with uncomplicated pregnancies. Here we compare bacterial community succession in infants born vaginally, with no exposure to antibiotics (n = 53), with infants who were exposed to intrapartum antibiotic prophylaxis (IAP) for Group B Streptococcus (GBS; n = 14), and infants born by C-section (n = 7)...
November 28, 2017: Scientific Reports
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