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Cytomegalovirus newborn

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https://www.readbyqxmd.com/read/28331097/loss-of-the-human-cytomegalovirus-us16-protein-abrogates-virus-entry-into-endothelial-and-epithelial-cells-by-reducing-the-virion-content-of-the-pentamer
#1
Anna Luganini, Noemi Cavaletto, Stefania Raimondo, Stefano Geuna, Giorgio Gribaudo
The Human Cytomegalovirus (HCMV) US12 gene family encodes a group of predicted seven-transmembrane proteins whose functions have yet to be established. While inactivation of individual US12 members in laboratory strains of HCMV does not affect viral replication in fibroblasts, disruption of the US16 gene in the low-passage TR strain prevents viral growth in endothelial and epithelial cells. In these cells, the US16-null viruses fail to express IE, E, and L viral proteins due to a defect which occurs prior to IE gene expression...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28322432/bilateral-congenital-deafness-what-investigations-should-be-performed
#2
Nicolas Gürtler, Claudine Gysin, Nevenka Schmid, Claudia Pieren, Mattheus Vischer, Stefan Schumacher, Peter Oppermann, Daniel Leuba, Dorothée Veraguth
BACKGROUND: The introduction of newborn hearing screening has led to earlier identification of children with congenital sensorineural hearing loss (SNHL). Aetiological clarification offers several benefits. There is currently a lack of agreement on which examinations should be recommended. OBJECTIVE: Descriptive review of the literature reporting investigations performed to establish the aetiology of congenital SNHL and comparison of the management policy in Swiss referral centres...
March 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28319846/presence-of-cytomegalovirus-in-urine-and-blood-of-pregnant-women-with-primary-infection-might-be-associated-with-fetal-infection
#3
Marie-Luce Delforge, Elena Costa, Françoise Brancart, Deborah Goldman, Isabel Montesinos, Siham Zaytouni, Arnaud Marchant, Catherine Donner
BACKGROUND: Cytomegalovirus (CMV) congenital infection can result from primary infection, reinfection or reactivation among pregnant women. The risk of vertical transmission is much higher in case of primary infection, and the transmission rate increases with gestational age. However there are still many questions about maternal markers that can predict whether the virus will be transmitted to the fetus. OBJECTIVES: To investigate the relationship between the presence and the quantity of CMV in urine and blood of women presenting a primary CMV infection during pregnancy and the presence of congenital infection in their offspring...
March 7, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28298291/plasmablast-response-to-primary-rhesus-cytomegalovirus-infection-in-a-monkey-model-of-congenital-cmv-transmission
#4
Qihua Fan, Cody S Nelson, Kristy M Bialas, Flavia Chiuppesi, Joshua Amos, Thaddeus C Gurley, Dawn Jones Marshall, Joshua Eudailey, Holly Heimsath, Jonathon Himes, Ashlesha Deshpande, Mark R Walter, Felix Wussow, Don J Diamond, Peter A Barry, M Anthony Moody, Amitinder Kaur, Sallie R Permar
Human cytomegalovirus (HCMV) is the most common congenital infection worldwide, and the leading infectious cause of neurologic deficits and hearing loss in newborns. Development of a maternal HCMV vaccine to prevent vertical virus transmission is a high priority, yet protective maternal immune responses following acute infection are poorly understood. To characterize the maternal humoral immune response to primary CMV infection, we investigated the plasmablast and early antibody repertoire using a nonhuman primate model with two acutely rhesus CMV (RhCMV) infected animals - a CD4+ T cell-depleted dam that experienced fetal loss shortly after vertical RhCMV transmission and an immunocompetent dam that did not transmit RhCMV to her infant...
March 15, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28291720/congenital-cytomegalovirus-infection-in-pregnancy-and-the-neonate-consensus-recommendations-for-prevention-diagnosis-and-therapy
#5
REVIEW
William D Rawlinson, Suresh B Boppana, Karen B Fowler, David W Kimberlin, Tiziana Lazzarotto, Sophie Alain, Kate Daly, Sara Doutré, Laura Gibson, Michelle L Giles, Janelle Greenlee, Stuart T Hamilton, Gail J Harrison, Lisa Hui, Cheryl A Jones, Pamela Palasanthiran, Mark R Schleiss, Antonia W Shand, Wendy J van Zuylen
Congenital cytomegalovirus is the most frequent, yet under-recognised, infectious cause of newborn malformation in developed countries. Despite its clinical and public health importance, questions remain regarding the best diagnostic methods for identifying maternal and neonatal infection, and regarding optimal prevention and therapeutic strategies for infected mothers and neonates. The absence of guidelines impairs global efforts to decrease the effect of congenital cytomegalovirus. Data in the literature suggest that congenital cytomegalovirus infection remains a research priority, but data are yet to be translated into clinical practice...
March 10, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28278509/evaluation-of-the-automated-qiasymphony-sp-as-workflow-for-cytomegalovirus-dna-extraction-and-amplification-from-dried-blood-spots
#6
Daniela Spalletti-Cernia, Sara Barbato, Rosanna Sorrentino, Luca Vallefuoco, Caterina Rocco, Pasquale Di Costanzo, Antonella Giannattasio, Francesco Raimondi, Claudia Mazzarella, Roberta De Mattia, Giuseppe Portella
OBJECTIVE: Human cytomegalovirus (CMV) can be considered the most important agent of congenital infection. Long-term sequelae of congenital infection occur in about 15% of infants asymptomatic at birth. To avoid long-term sequelae or to reduce their burden, it is necessary to identify infected children for early interventions. CMV DNA can be detected in dried blood spots (DBSs). DBSs have been used in several studies for the retrospective diagnosis of congenital CMV (CCMV). It has been proposed to use DBSs for the newborn screening of CMV infection; however, manual methods are not suitable for newborn screening of CCMV...
March 10, 2017: Intervirology
https://www.readbyqxmd.com/read/28257513/effect-of-mycoplasma-hominis-and-cytomegalovirus-infection-on-pregnancy-outcome-a-prospective-study-of-200-mongolian-women-and-their-newborns
#7
Byambaa Otgonjargala, Kathrin Becker, Gunchin Batbaatar, Sandag Tsogtsaikhan, Jamsranjav Enkhtsetseg, Altangerel Enkhjargal, Klaus Pfeffer, Ortwin Adams, Chimeddorj Battogtokh, Birgit Henrich
In Mongolia, diagnostic tests for the detection of the sexually transmitted mycoplasmas, ureaplasmas, Herpes simplex virus (HSV), and cytomegalovirus (CMV) are currently not routinely used in clinical settings and the frequency of these STIs are enigmatic. The prevalence of these STI pathogens were prospectively evaluated among 200 Mongolian pregnant women and their newborns and correlated with pregnancy outcome. TaqMan PCRs were used to detect bacterial and viral STI pathogens in pre-birth vaginal swabs of the pregnant women and in oral swabs of their newborns...
2017: PloS One
https://www.readbyqxmd.com/read/28237943/kinome-profiling-identifies-druggable-targets-for-novel-hcmv-antivirals
#8
Kyle C Arend, Erik M Lenarcic, Heather A Vincent, Naim Rashid, Eric Lazear, Ian M McDonald, Thomas S K Gilbert, Michael P East, Laura E Herring, Gary L Johnson, Lee Graves, Nathaniel J Moorman
Human cytomegalovirus (HCMV) is a significant cause of disease in immunecompromised adults and immune naive newborns. No vaccine exists to prevent HCMV infection, and current antiviral therapies have toxic side effects that limit the duration and intensity of their use. There is thus an urgent need for new strategies to treat HCMV infection. Repurposing existing drugs as antivirals is an attractive approach to limit the time and cost of new antiviral drug development. Virus-induced changes in infected cells are often driven by changes in cellular kinase activity, which led us to hypothesize that defining the complement of kinases (the kinome), whose abundance or expression is altered during infection would identify existing kinase inhibitors that could be repurposed as new antivirals...
February 25, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28237380/newborn-dried-blood-spot-polymerase-chain-reaction-to-identify-infants-with-congenital-cytomegalovirus-associated-sensorineural-hearing-loss
#9
Shannon A Ross, Amina Ahmed, April L Palmer, Marian G Michaels, Pablo J Sánchez, Audra Stewart, David I Bernstein, Kristina Feja, Karen B Fowler, Suresh B Boppana
OBJECTIVE: To determine the utility of dried blood spot (DBS) polymerase chain reaction (PCR) in identifying infants with cytomegalovirus (CMV) infection-associated sensorineural hearing loss (SNHL). STUDY DESIGN: Newborns at 7 US hospitals between March 2007 and March 2012 were screened for CMV by saliva rapid culture and/or PCR. Infected infants were monitored for SNHL during the first 4 years of life to determine sensitivity, specificity, and positive and negative likelihood ratios of DBS PCR for identifying CMV-associated SNHL...
February 22, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28209771/hearing-loss-in-children-with-asymptomatic-congenital-cytomegalovirus-infection
#10
Tatiana M Lanzieri, Winnie Chung, Marily Flores, Peggy Blum, A Chantal Caviness, Stephanie R Bialek, Scott D Grosse, Jerry A Miller, Gail Demmler-Harrison
OBJECTIVES: To assess the prevalence, characteristics, and risk of sensorineural hearing loss (SNHL) in children with congenital cytomegalovirus infection identified through hospital-based newborn screening who were asymptomatic at birth compared with uninfected children. METHODS: We included 92 case-patients and 51 controls assessed by using auditory brainstem response and behavioral audiometry. We used Kaplan-Meier survival analysis to estimate the prevalence of SNHL, defined as ≥25 dB hearing level at any frequency and Cox proportional hazards regression analyses to compare SNHL risk between groups...
March 2017: Pediatrics
https://www.readbyqxmd.com/read/28202760/restriction-of-hcmv-replication-by-isg15-a-host-effector-regulated-by-cgas-sting-dsdna-sensing
#11
Christopher Bianco, Ian Mohr
Accumulation of the interferon-stimulated gene (ISG) 15 protein product, which is reversibly conjugated to numerous polypeptide targets, impacts the proteome and physiology of uninfected and infected cells. While many viruses, including human cytomegalovirus (HCMV) blunt host antiviral defenses by limiting ISG expression, the overall abundance of ISG15 monomer and protein conjugates rises in HCMV-infected cells. However, the molecular signals underlying ISG15 accumulation and whether the ISG15 polypeptide itself influences HCMV infection biology remain unknown...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28161964/in-vitro-evaluation-of-a-polytope-dna-construct-as-a-novel-dna-vaccine-strategy-against-human-cytomegalovirus-associated-diseases
#12
E Sabbaghian, F Roodbari, J Amani, A Rafiei
Human cytomegalovirus (HCMV) establishes severe disease in fetus, newborn and immunocompromised individuals. Polytope DNA vaccine strategy allows us to choose conserved and immunodominant epitopes from different antigens that can stimulate cellular and humoral immune responses simultaneously. In this study, a synthetic chimeric gene fragment was subcloned in to DNA vaccine vector pcDNA3.1+. The recombinant vector was transferred in to suitable eukaryotic cell line HEK 293T and the expression level of polytope construct from HEK 293T-infected cells was determined by western blot...
February 6, 2017: Acta Virologica
https://www.readbyqxmd.com/read/28151899/cohort-study-on-maternal-cytomegalovirus-seroprevalence-and-prevalence-and-clinical-manifestations-of-congenital-infection-in-china
#13
Shiwen Wang, Tongzhan Wang, Wenqiang Zhang, Xiaolin Liu, Xiaofang Wang, Haiyan Wang, Xiaozhou He, Shunxian Zhang, Shuhui Xu, Yang Yu, Xingbing Jia, Maolin Wang, Aiqiang Xu, Wei Ma, Minal M Amin, Stephanie R Bialek, Sheila C Dollard, Chengbin Wang
Congenital cytomegalovirus (CMV) infection is the leading viral cause of birth defects and developmental disabilities in developed countries. However, CMV seroprevalence and burden of congenital CMV infection are not well defined in China.Cohort of newborns from 5 birthing hospitals in 2 counties of Shandong Province, China, were enrolled from March 2011 to August 2013. Dried blood spots (DBS) and saliva were collected within 4 days after birth for IgG testing for maternal seroprevalence and real-time PCR testing for congenital CMV infection, respectively...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28122986/tnf%C3%AE-induced-recruitment-of-inflammatory-mononuclear-cells-leads-to-inflammation-and-altered-brain-development-in-mcmv-infected-newborn-mice
#14
Maria C Seleme, Kate Kosmac, Stipan Jonjic, William J Britt
Congenital human cytomegalovirus (HCMV) infection is a significant cause of abnormal neurodevelopment and long term neurological sequelae in infants and children. Resident cell populations of the developing brain have been suggested to be more susceptible to virus-induced cytopathology, a pathway thought to contribute to the clinical outcomes following intrauterine HCMV infection. However, recent findings in a newborn mouse model of this infection in the developing brain have indicated that elevated levels of proinflammatory mediators leading to mononuclear cell activation and recruitment could underlie the abnormal neurodevelopment...
January 25, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28119427/screening-for-congenital-cytomegalovirus-after-newborn-hearing-screening-what-comes-next
#15
Scott D Grosse, Sheila C Dollard, David W Kimberlin
No abstract text is available yet for this article.
January 24, 2017: Pediatrics
https://www.readbyqxmd.com/read/28119425/outcomes-from-a-hearing-targeted-cytomegalovirus-screening-program
#16
Marissa L Diener, Cathleen D Zick, Stephanie Browning McVicar, Jill Boettger, Albert H Park
BACKGROUND AND OBJECTIVES: Cytomegalovirus (CMV) is the most common congenital infection and nongenetic cause of congenital sensorineural hearing loss in the United States. Utah was the first state to pass legislation mandating CMV screening for newborns who fail newborn hearing screening (NBHS). The study objective was to present outcomes of hearing-targeted CMV screening and determine factors predicting CMV screening. METHODS: We used Utah Department of Health HiTrack and Vital Records databases to examine CMV screening from 509 infants who failed NBHS in the 24 months after implementation of the Utah legislation...
January 24, 2017: Pediatrics
https://www.readbyqxmd.com/read/28118851/tlr2-2258-g-a-single-nucleotide-polymorphism-and-the-risk-of-congenital-infection-with-human-cytomegalovirus
#17
Wioletta Wujcicka, Edyta Paradowska, Mirosława Studzińska, Jan Wilczyński, Dorota Nowakowska
BACKGROUND: Human cytomegalovirus (HCMV) is responsible for the most common intrauterine infections, which may be acquired congenitally from infected pregnant woman to fetus. The research was aimed to estimate the role of three single nucleotide polymorphisms (SNPs) located in TLR2 gene, and the common contribution of TLR2, and previously studied TLR4 and TLR9 SNPs, to the occurrence of congenital HCMV infection in fetuses and newborns. METHODS: The study was performed in 20 Polish fetuses and newborns, congenitally infected with HCMV, and in 31 uninfected controls, as well as with participation of pregnant women, the mothers of 16 infected and 14 uninfected offsprings...
January 24, 2017: Virology Journal
https://www.readbyqxmd.com/read/28110288/screening-for-seemingly-healthy-newborns-with-congenital-cytomegalovirus-infection-by-quantitative-real-time-polymerase-chain-reaction-using-newborn-urine-an-observational-study
#18
Akira Yamaguchi, Tsutomu Oh-Ishi, Takashi Arai, Hideaki Sakata, Nodoka Adachi, Satoshi Asanuma, Eiji Oguma, Hirofumi Kimoto, Jiro Matsumoto, Hidetoshi Fujita, Tadashi Uesato, Jutaro Fujita, Ken Shirato, Hideki Ohno, Takako Kizaki
OBJECTIVE: Approximately 8-10% of newborns with asymptomatic congenital cytomegalovirus (cCMV) infection develop sensorineural hearing loss (SNHL). However, the relationship between CMV load, SNHL and central nervous system (CNS) damage in cCMV infection remains unclear. This study aimed to examine the relationship between urinary CMV load, SNHL and CNS damage in newborns with cCMV infection. STUDY DESIGN: The study included 23 368 newborns from two maternity hospitals in Saitama Prefecture, Japan...
January 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28077639/identification-of-a-continuous-neutralizing-epitope-within-ul128-of-human-cytomegalovirus
#19
Flavia Chiuppesi, Teodora Kaltcheva, Zhuo Meng, Peter A Barry, Don J Diamond, Felix Wussow
As human cytomegalovirus (HCMV) is the most common infectious cause of fetal anomalies during pregnancy, development of a vaccine that prevents HCMV infection is considered a global health priority. Although HCMV immune correlates of protection are only poorly defined, neutralizing antibodies (NAb) targeting the envelope pentamer complex (PC) composed of the subunits gH, gL, UL128, UL130, and UL131A are thought to contribute to the prevention of HCMV infection. Here, we describe a continuous target sequence within UL128 that is recognized by a previously isolated potent PC-specific NAb termed 13B5...
March 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28056855/symptomatic-congenital-cytomegalovirus-disease-following-non-primary-maternal-infection-a-retrospective-cohort-study
#20
Eran Hadar, Elizabeta Dorfman, Ron Bardin, Rinat Gabbay-Benziv, Jacob Amir, Joseph Pardo
BACKGROUND: Scarce data exist about screening, diagnosis and prognosis of non-primary Cytomegalovirus (CMV) during pregnancy. We aimed to examine antenatal diagnosis of maternal non-primary CMV infection and to identify risk factors for congenial CMV disease. METHODS: Retrospective cohort of 107 neonates with congenital symptomatic CMV infection, following either primary (n = 95) or non-primary (n = 12) maternal CMV infection. We compared the groups for the manifestations and severity of congenial CMV disease, as well as for possible factors associated with the risk of developing CMV related infant morbidity...
January 5, 2017: BMC Infectious Diseases
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