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amniotic infection

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https://www.readbyqxmd.com/read/28899604/clinical-and-epidemiological-use-of-nested-pcr-targeting-the-repetitive-element-is1111-associated-with-the-transposase-gene-from-coxiella-burnetii
#1
Maria Angélica M M Mares-Guia, Alexandro Guterres, Tatiana Rozental, Michelle Dos Santos Ferreira, Elba R S Lemos
Q fever is a worldwide zoonosis caused by Coxiella burnetii-a small obligate intracellular Gram-negative bacterium found in a variety of animals. It is transmitted to humans by inhalation of contaminated aerosols from urine, feces, milk, amniotic fluid, placenta, abortion products, wool, and rarely by ingestion of raw milk from infected animals. Nested PCR can improve the sensitivity and specificity of testing while offering a suitable amplicon size for sequencing. Serial dilutions were performed tenfold to test the limit of detection, and the result was 10× detection of C...
August 24, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28891072/stable-control-of-physiological-parameters-but-not-infection-in-preterm-lambs-maintained-on-ex-vivo-uterine-environment-therapy
#2
Yuichiro Miura, Haruo Usuda, Shimpei Watanabe, Eleanor Woodward, Masatoshi Saito, Gabrielle C Musk, Suhas G Kallapur, Shinichi Sato, Ryuta Kitanishi, Tadashi Matsuda, John P Newnham, Sarah J Stock, Matthew W Kemp
Ex vivo uterine environment (EVE) therapy is an experimental neonatal intensive care strategy wherein gas exchange is performed by membranous oxygenators attached to the umbilical vessels. Our aim was to assess the ability of a newly refined EVE system to maintain key physiological parameters in preterm lambs within optimal ranges for 48 h. EVE group; n = 6: Preterm lambs were delivered under general anesthesia at 115 ± 2 days of gestational age. Animals were submerged in a bath of artificial amniotic fluid on EVE therapy for 48 h...
September 11, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28871085/probing-the-potential-of-mucus-permeability-to-signify-preterm-birth-risk
#3
K B Smith-Dupont, C E Wagner, J Witten, K Conroy, H Rudoltz, K Pagidas, V Snegovskikh, M House, K Ribbeck
Preterm birth is the leading cause of neonatal mortality, and is frequently associated with intra-amniotic infection hypothesized to arise from bacterial ascension across a dysfunctional cervical mucus plug. To study this dysfunction, we assessed the permeability of cervical mucus from non-pregnant ovulating (n = 20) and high- (n = 9) and low-risk (n = 16) pregnant women to probes of varying sizes and surface chemistries. We found that the motion of negatively charged, carboxylated microspheres in mucus from pregnant patients was significantly restricted compared to ovulating patients, but not significantly different between high- and low-risk pregnant women...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28868246/antimicrobial-properties-of-amniotic-and-chorionic-membranes-a-comparative-study-of-two-human-fetal-sacs
#4
Majid Zare-Bidaki, Sajad Sadrinia, Soheila Erfani, Ehsan Afkar, Nahid Ghanbarzade
BACKGROUND: There is evidence of antibacterial properties of human chorioamniotic layer. However, the distinctive contribution of its individual parts, amniotic and chorionic membranes, to these effects is still unknown. The aim of present study was comparison of the antibacterial effects between amniotic and chorionic membranes. METHODS: Chorioamniotic layer was removed from placenta belonging to 43 healthy mothers whose infants were delivered by caesarean section...
April 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28851620/diagnosis-of-congenital-toxoplasmosis-in-a-renal-transplant-recipient-mother
#5
M Hermann, H Yéra, I Villena, B Cimon, E Thervet, A Benachi
We report the case of a first trimester toxoplasmosis infection in a renal transplant recipient. Real-time polymerase chain reaction in amniotic fluid at 18 weeks was negative for Toxoplasma gondii but at 26 weeks major fetal hydrocephalus was discovered leading to medical termination of pregnancy. Pathological examination confirmed lesions consistent with congenital toxoplasmosis. The herein case report, as well as data from the French reference centre for congenital Toxoplamosis (1835 cases in the past eight years), suggests that the strategy of management of pregnancy's first trimester Toxoplasmosis infection in patients treated by immunosuppressive therapy needs to be reconsidered...
August 26, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28820372/microcephaly-caused-by-lymphocytic-choriomeningitis-virus
#6
Maia Delaine, Anne-Sophie Weingertner, Antoine Nougairede, Quentin Lepiller, Samira Fafi-Kremer, Romain Favre, Rémi Charrel
We report congenital microencephaly caused by infection with lymphocytic choriomeningitis virus in the fetus of a 29-year-old pregnant women at 23 weeks' gestation. The diagnosis was made by ultrasonography and negative results for other agents and confirmed by a positive PCR result for lymphocytic choriomeningitis virus in an amniotic fluid sample.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28806949/case-report-of-ocular-kaposi-s-sarcoma
#7
Jing Yang, Xiao-Fang Yin, Yong-Ping Li, Shi-You Zhou
BACKGROUND: Kaposi's sarcoma (KS) is generally considered a neoplastic disorder of vascular origin and occurs in patients with acquired immunodeficiency syndrome (AIDS) or who have received immunosuppressive treatments after an organ transplant (Soulier et al., Blood 86(4):1276-80, 1995; Viejo-Borbolla and Schulz, AIDS Rev 5(4):222-9, 2003; Schulz, J Antimicrob Chemother 45(Suppl T3):15-27, 2000; Aversa et al. Crit Rev Oncol Hematol 53(3):253-65, 2005; Mbulaiteye and Engels, Int J Cancer 119(11):2685-91, 2006; Tessari et al...
August 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28801056/clinical-evaluation-of-the-new-roche-platform-of-serological-and-molecular-cytomegalovirus-specific-assays-in-the-diagnosis-and-prognosis-of-congenital-cytomegalovirus-infection
#8
Angela Chiereghin, Claudia Pavia, Liliana Gabrielli, Giulia Piccirilli, Diego Squarzoni, Gabriele Turello, Dino Gibertoni, Giuliana Simonazzi, Maria Grazia Capretti, Marcello Lanari, Tiziana Lazzarotto
Clinical evaluation of the Elecsys(®) CMV IgM, IgG, IgG Avidity and COBAS AmpliPrep/COBAS TaqMan CMV (COBAS CMV) assays (Roche Diagnostics AG) in the diagnosis and prognosis of congenital CMV infection was performed. In this study, 150 preselected clinical samples (50 primary infection sera, 50 amniotic fluid [AF] and 50 newborn urine) were processed using Roche serological/molecular CMV-specific tests. Results were compared with those obtained by routine assays (comparator assays). The Elecsys(®) CMV IgM and IgG assays showed a perfect agreement (100%) with the comparator assays...
October 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28798738/zika-virus-an-emerging-worldwide-threat
#9
Irfan A Rather, Jameel B Lone, Vivek K Bajpai, Woon K Paek, Jeongheui Lim
ZIKA virus (ZIKV) poses a severe threat to the world. Recent outbreaks of ZIKV after 2007 along with its quick transmission have made this virus a matter of international concern. The virus shows symptoms that are similar to those caused in the wake of dengue virus (DENV) and other flaviviruses, which makes it difficult to discern the viral infection. Diagnosis is further complicated as the virus cross-reacts with antibodies of other viruses. Currently, molecular diagnosis of the virus is being performed by RT-PCR and IgM-captured enzyme-linked immunosorbent assay (MAC-ELISA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28783687/group-b-streptococcus-circumvents-neutrophils-and-neutrophil-extracellular-traps-during-amniotic-cavity-invasion-and-preterm-labor
#10
Erica Boldenow, Claire Gendrin, Lisa Ngo, Craig Bierle, Jay Vornhagen, Michelle Coleman, Sean Merillat, Blair Armistead, Christopher Whidbey, Varchita Alishetti, Veronica Santana-Ufret, Jason Ogle, Michael Gough, Sengkeo Srinouanprachanh, James W MacDonald, Theo K Bammler, Aasthaa Bansal, H Denny Liggitt, Lakshmi Rajagopal, Kristina M Adams Waldorf
Preterm birth is a leading cause of neonatal morbidity and mortality. Although microbial invasion of the amniotic cavity (MIAC) is associated with most early preterm births, the temporal events that occur during MIAC and preterm labor are not known. Group B streptococci (GBS) are β-hemolytic, Gram-positive bacteria, which commonly colonize the vagina but have been recovered from the amniotic fluid in preterm birth cases. To understand temporal events that occur during MIAC, we used a chronically catheterized nonhuman primate model that closely emulates human pregnancy...
October 14, 2016: Science Immunology
https://www.readbyqxmd.com/read/28742677/committee-opinion-no-712-intrapartum-management-of-intraamniotic-infection
#11
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742671/committee-opinion-no-712-summary-intrapartum-management-of-intraamniotic-infection
#12
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28715527/screening-criteria-for-ophthalmic-manifestations-of-congenital-zika-virus-infection
#13
Andrea A Zin, Irena Tsui, Julia Rossetto, Zilton Vasconcelos, Kristina Adachi, Stephanie Valderramos, Umme-Aiman Halai, Marcos Vinicius da Silva Pone, Sheila Moura Pone, Joel Carlos Barros Silveira Filho, Mitsue S Aibe, Ana Carolina C da Costa, Olivia A Zin, Rubens Belfort, Patricia Brasil, Karin Nielsen-Saines, Maria Elisabeth Lopes Moreira
Importance: Current guidelines recommend screening eye examinations for infants with microcephaly or laboratory-confirmed Zika virus infection but not for all infants potentially exposed to Zika virus in utero. Objective: To evaluate eye findings in a cohort of infants whose mothers had polymerase chain reaction-confirmed Zika virus infection during pregnancy. Design, Setting, and Participants: In this descriptive case series performed from January 2 through October 30, 2016, infants were examined from birth to 1 year of age by a multidisciplinary medical team, including a pediatric ophthalmologist, from Fernandes Figueira Institute, a Ministry of Health referral center for high-risk pregnancies and infectious diseases in children in Rio de Janeiro, Brazil...
September 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#14
REVIEW
Michael Tchirikov, Natalia Schlabritz-Loutsevitch, James Maher, Jörg Buchmann, Yuri Naberezhnev, Andreas S Winarno, Gregor Seliger
Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long- and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines...
July 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28700642/bacterial-communities-found-in-placental-tissues-are-associated-with-severe-chorioamnionitis-and-adverse-birth-outcomes
#15
Ronan M Doyle, Kathryn Harris, Steve Kamiza, Ulla Harjunmaa, Ulla Ashorn, Minyanga Nkhoma, Kathryn G Dewey, Kenneth Maleta, Per Ashorn, Nigel Klein
Preterm birth is a major cause of neonatal mortality and morbidity worldwide. Bacterial infection and the subsequent inflammatory response are recognised as an important cause of preterm birth. It is hypothesised that these organisms ascend the cervical canal, colonise placental tissues, cause chorioamnionitis and in severe cases infect amniotic fluid and the foetus. However, the presence of bacteria within the intrauterine cavity does not always precede chorioamnionitis or preterm birth. Whereas previous studies observing the types of bacteria present have been limited in size and the specificity of a few predetermined organisms, in this study we characterised bacteria found in placental tissues from a cohort of 1391 women in rural Malawi using 16S ribosomal RNA gene sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28700086/antiseptics-for-burns
#16
REVIEW
Gill Norman, Janice Christie, Zhenmi Liu, Maggie J Westby, Jayne M Jefferies, Thomas Hudson, Jacky Edwards, Devi Prasad Mohapatra, Ibrahim A Hassan, Jo C Dumville
BACKGROUND: Burn wounds cause high levels of morbidity and mortality worldwide. People with burns are particularly vulnerable to infections; over 75% of all burn deaths (after initial resuscitation) result from infection. Antiseptics are topical agents that act to prevent growth of micro-organisms. A wide range are used with the intention of preventing infection and promoting healing of burn wounds. OBJECTIVES: To assess the effects and safety of antiseptics for the treatment of burns in any care setting...
July 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28697120/association-of-parasite-load-levels-in-amniotic-fluid-with-clinical-outcome-in-congenital-toxoplasmosis
#17
Lidia Yamamoto, Lília S Targa, Laura M Sumita, Paulo T Shimokawa, Jonatas C Rodrigues, Kelly A Kanunfre, Thelma S Okay
OBJECTIVE: To correlate neonatal and infant clinical outcome with parasite load in amniotic fluid (AF). METHODS: We conducted a retrospective cohort study of 122 children whose mothers had toxoplasmosis during pregnancy. The children were monitored from birth to 12 months old. Stored AF samples were obtained at maternal diagnosis and tested by quantitative polymerase chain reaction. Gestational age at maternal infection, quantitative polymerase chain reaction results, neonatal anti-Toxoplasma gondii immunoglobulin (Ig) M, and clinical outcome at 12 months were correlated...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28693123/clinical-chorioamnionitis-at-term-viii-a-rapid-mmp-8-test-for-the-identification-of-intra-amniotic-inflammation
#18
Noppadol Chaiyasit, Roberto Romero, Piya Chaemsaithong, Nikolina Docheva, Gaurav Bhatti, Juan Pedro Kusanovic, Zhong Dong, Lami Yeo, Percy Pacora, Sonia S Hassan, Offer Erez
OBJECTIVE: Clinical chorioamnionitis is the most common infection/inflammatory process diagnosed in labor and delivery units worldwide. The condition is a syndrome that can be caused by (1) intra-amniotic infection, (2) intra-amniotic inflammation without demonstrable microorganisms (i.e. sterile intra-amniotic inflammation), and (3) maternal systemic inflammation that is not associated with intra-amniotic inflammation. The presence of intra-amniotic inflammation is a risk factor for adverse maternal and neonatal outcomes in a broad range of obstetrical syndromes that includes clinical chorioamnionitis at term...
June 24, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28672915/induction-of-reprogramming-of-human-amniotic-epithelial-cells-into-ips-cells-by-overexpression-of-yap-oct4-and-sox2-through-the-activation-of-the-hippo-yap-pathway
#19
Yanhui Zhao, Xinfeng Fei, Jianming Guo, Gang Zou, Weidong Pan, Jingju Zhang, Yongyi Huang, Te Liu, Weiwei Cheng
The present study has reported a novel method for producing induced pluripotent stem (iPS) cells. Primary human amniotic epithelial cells (HuAECs) were isolated from the amniotic membranes of pregnant women who received Cesarean sections. These cells were infected with retroviruses carrying octamer-binding transcription factor 4 (Oct4), (sex determining region Y)-box 2 (Sox2) and Yes-associated protein (Yap) (OSY). Following in vitro culture for ~14 days, epithelial-like HuAECs exhibited several iPS clone-like cell colonies (OSY-iPS)...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28672752/clinical-chorioamnionitis-at-term-viii-a-rapid-mmp-8-test-for-the-identification-of-intra-amniotic-inflammation
#20
Noppadol Chaiyasit, Roberto Romero, Piya Chaemsaithong, Nikolina Docheva, Gaurav Bhatti, Juan Pedro Kusanovic, Zhong Dong, Lami Yeo, Percy Pacora, Sonia S Hassan, Offer Erez
OBJECTIVE: Clinical chorioamnionitis is the most common infection/inflammatory process diagnosed in labor and delivery units worldwide. The condition is a syndrome that can be caused by (1) intra-amniotic infection, (2) intra-amniotic inflammation without demonstrable microorganisms (i.e. sterile intra-amniotic inflammation), and (3) maternal systemic inflammation that is not associated with intra-amniotic inflammation. The presence of intra-amniotic inflammation is a risk factor for adverse maternal and neonatal outcomes in a broad range of obstetrical syndromes that includes clinical chorioamnionitis at term...
July 26, 2017: Journal of Perinatal Medicine
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