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Intra-Amniotic Infection

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https://www.readbyqxmd.com/read/29743041/plasma-inflammatory-and-immune-proteins-as-predictors-of-intra-amniotic-infection-and-spontaneous-preterm-delivery-in-women-with-preterm-labor-a-retrospective-study
#1
Hyunsoo Park, Kyo Hoon Park, Yu Mi Kim, Song Yi Kook, Se Jeong Jeon, Ha-Na Yoo
BACKGROUND: We investigated whether various inflammatory and immune proteins in plasma predict intra-amniotic infection and imminent preterm delivery in women with preterm labor and compared their predictive ability with that of amniotic fluid (AF) interleukin (IL)-6 and serum C-reactive protein (CRP). METHODS: This retrospective cohort study included 173 consecutive women with preterm labor who underwent amniocentesis for diagnosis of infection and/or inflammation in the AF...
May 9, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29709964/bacterial-culture-negative-subclinical-intra-amniotic-infection-can-be-detected-by-bacterial-16s-ribosomal-dna-amplifying-polymerase-chain-reaction
#2
Sachi Morimoto, Hirokazu Usui, Tatsuya Kobayashi, Eiji Katou, Shunji Goto, Hirokazu Tanaka, Makio Shozu
Comprehensive analysis of bacterial DNA enhanced our understanding of the maternal microbiome and its disturbance in preterm birth, although clinical utility of these techniques remains to be determined. We examined whether broad-range polymerase technique is useful for detection of culture-negative intra-amniotic infection (IAI). Pregnant women who underwent amniocentesis for the management of preterm birth with or without the premature rupture of membranes. Bacterial 16S ribosomal DNA in the amniotic fluid was detected by polymerase chain reaction (PCR) using primers for a sequence shared by Ureaplasma, Mycoplasma, and other bacteria...
April 27, 2018: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29709096/17ohp-c-in-patients-with-spontaneous-preterm-labor-and-intact-membranes-is-there-an-effect-according-to-the-presence-of-intra-amniotic-inflammation
#3
Satoshi Yoneda, Noriko Yoneda, Arihiro Shiozaki, Osamu Yoshino, Tomohiro Ueno, Hideki Niimi, Isao Kitajima, Kentaro Tamura, Yukako Kawasaki, Masami Makimoto, Taketoshi Yoshida, Shigeru Saito
PROBLEM: It is not known whether 17-alpha-hydroxyprogesterone caproate (17OHP-C) is effective for preventing preterm delivery with an episode of preterm labor (PTL) with or without intra-amniotic inflammation/infection. METHODS OF STUDY: This was a retrospective cohort study. One hundred and seven PTL patients were selected and divided into a 17OHP-C group (use of 17OHP-C: n = 53) and a no-treatment group (no use of 17OHP-C: n = 54). Moreover, the patients were divided into three subgroups (subgroup A: without intra-amniotic inflammation, B: with mild intra-amniotic inflammation, and C: with severe intra-amniotic inflammation) according to their level of amniotic interleukin (IL)-8, and perinatal prognosis was analyzed...
April 30, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29673373/chorioamnionitis-neuroinflammation-and-injury-timing-is-key-in-the-preterm-ovine-fetus
#4
Ruth Gussenhoven, Rob J J Westerlaken, Daan R M G Ophelders, Alan H Jobe, Matthew W Kemp, Suhas G Kallapur, Luc J Zimmermann, Per T Sangild, Stanislava Pankratova, Pierre Gressens, Boris W Kramer, Bobbi Fleiss, Tim G A M Wolfs
BACKGROUND: Antenatal infection (i.e., chorioamnionitis) is an important risk factor for adverse neurodevelopmental outcomes after preterm birth. Destructive and developmental disturbances of the white matter are hallmarks of preterm brain injury. Understanding the temporal effects of antenatal infection in relation to the onset of neurological injury is crucial for the development of neurotherapeutics for preterm infants. However, these dynamics remain unstudied. METHODS: Time-mated ewes were intra-amniotically injected with lipopolysaccharide at 5, 12, or 24 h or 2, 4, 8, or 15 days before preterm delivery at 125 days gestational age (term ~ 150 days)...
April 19, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29500850/the-immunophenotype-of-amniotic-fluid-leukocytes-in-normal-and-complicated-pregnancies
#5
Nardhy Gomez-Lopez, Roberto Romero, Yi Xu, Derek Miller, Yaozhu Leng, Bogdan Panaitescu, Pablo Silva, Jonathan Faro, Ali Alhousseini, Navleen Gill, Sonia S Hassan, Chaur-Dong Hsu
PROBLEM: The immune cellular composition of amniotic fluid is poorly understood. Herein, we determined: 1) the immunophenotype of amniotic fluid immune cells during the second and third trimester in the absence of intra-amniotic infection/inflammation; 2) whether amniotic fluid T cells and ILCs display different phenotypical characteristics to that of peripheral cells; and 3) whether the amniotic fluid immune cells are altered in women with intra-amniotic infection/inflammation. METHOD OF STUDY: Amniotic fluid samples (n = 57) were collected from 15 to 40 weeks of gestation in women without intra-amniotic infection/inflammation...
April 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29405967/identification-of-haptoglobin-switch-on-status-in-archived-placental-specimens-indicates-antenatal-exposure-to-inflammation-and-potential-participation-of-the-fetus-in-triggering-preterm-birth
#6
Megan E McCarthy, Catalin S Buhimschi, John T Hardy, Antonette T Dulay, Christine A Laky, Mert-Ozan Bahtyiar, Ramesha Papanna, Guomao Zhao, Irina A Buhimschi
OBJECTIVE: Haptoglobin (Hp) has key immunoregulatory roles that vary with phenotype (Hp1-1, Hp2-1, Hp2-2). Cord blood Hp expression is switched-off in the normal fetus. We hypothesized that in the setting of fetal inflammation placenta becomes inundated with Hp of fetal origin that in turn modulates the output of PGE2 and MMP-9 in a phenotype dependent manner. METHODS: Placentas from 40 pregnancies complicated by preterm birth (PTB) (<37 weeks), without (n = 15) or with (n = 25) intra-amniotic infection and histological chorioamnionitis (HCA) were scored for intensity of Hp immunostaining...
February 2018: Placenta
https://www.readbyqxmd.com/read/29372151/efficacy-and-side-effect-of-ritodrine-and-magnesium-sulfate-in-threatened-preterm-labor
#7
Min Kyoung Kim, Seung Mi Lee, Jung Won Oh, So Yeon Kim, Hye Gyeong Jeong, Sun Min Kim, Chan Wook Park, Jong Kwan Jun, Seo-Kyung Hahn, Joong Shin Park
Objective: In terms of efficacy, several previous studies have shown that the success rate in inhibiting preterm labor was not different between magnesium sulfate and ritodrine. However, there is a paucity of information regarding the efficacy of both medications after consideration of intra-amniotic infection, which is one of the most important prognostic factors in patients of threatened preterm birth. The objective of this study was to compare the efficacy and safety of magnesium sulfate with that of ritodrine in preterm labor...
January 2018: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29280532/sludge-reflects-intra-amniotic-inflammation-with-or-without-microorganisms
#8
Noriko Yoneda, Satoshi Yoneda, Hideki Niimi, Masami Ito, Kaori Fukuta, Tomohiro Ueno, Mika Ito, Arihiro Shiozaki, Mika Kigawa, Isao Kitajima, Shigeru Saito
PROBLEM: To investigate whether amniotic fluid (AF) "sludge" in patients with preterm labor (PTL) with intact membranes is related to intra-amniotic infection or inflammation. METHOD OF STUDY: 105 PTL patients before 29 weeks' gestation were enrolled. AF "sludge" was evaluated by transvaginal sonography. Microorganisms were identified in AF by our newly established PCR method using a eukaryote-made thermostable DNA polymerase. RESULTS: AF "sludge" was present in 18...
February 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29248470/spontaneous-preterm-birth-advances-toward-the-discovery-of-genetic-predisposition
#9
Jerome F Strauss, Roberto Romero, Nardhy Gomez-Lopez, Hannah Haymond-Thornburg, Bhavi P Modi, Maria E Teves, Laurel N Pearson, Timothy P York, Harvey A Schenkein
Evidence from family and twin-based studies provide strong support for a significant contribution of maternal and fetal genetics to the timing of parturition and spontaneous preterm birth. However, there has been only modest success in the discovery of genes predisposing to preterm birth, despite increasing sophistication of genetic and genomic technology. In contrast, DNA variants associated with other traits/diseases have been identified. For example, there is overwhelming evidence that suggests that the nature and intensity of an inflammatory response in adults and children are under genetic control...
March 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29226760/the-diagnostic-performance-of-the-beta-glucan-assay-in-the-detection-of-intra-amniotic-infection-with-candida-species
#10
Percy Pacora, Roberto Romero, Offer Erez, Eli Maymon, Bogdan Panaitescu, Juan Pedro Kusanovic, Adi L Tarca, Chaur-Dong Hsu, Sonia S Hassan
INTRODUCTION: A bioassay based on the detection of beta-glucan, a constituent of the cell wall of fungi, has been successfully used to diagnose fungal infections in a variety of biological fluids but not yet in the amniotic fluid. OBJECTIVE: To determine the diagnostic performance of a beta-glucan bioassay in the detection of Candida species in the amniotic fluid of women who either did or did not have an intrauterine contraceptive device (IUD) in place during an episode of spontaneous preterm parturition...
December 27, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29190624/extreme-surgical-maneuvers-in-fungal-endophthalmitis
#11
María Isabel Relimpio-López, María Gessa-Sorroche, Antonio Manuel Garrido-Hermosilla, Concepción Díaz-Ruiz, Jesús Montero-Iruzubieta, Jaime Etxebarría-Ecenarro, Diego Ruiz-Casas, Enrique Rodríguez-de-la-Rúa-Franch
PURPOSE: To present the different evolution of 2 cases of endophthalmitis caused by Fusarium solani, an aggressive filamentous fungus, depending on the medical and surgical treatment performed. METHODS: We present 2 cases of endophthalmitis caused by Fusarium solani. Topical, intrastromal, intravitreal, and systemic antifungal treatment (natamycin, voriconazole, amphotericin B) failed in both cases. Corneal perforation took place in one of them, being unsuccessfully treated with cyanoacrylate and several amniotic membrane transplants...
November 30, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/29124501/quality-and-clinical-outcomes-associated-with-a-gentamicin-use-system-change-for-managing-chorioamnionitis
#12
Jason B Sauberan, Brittney Choi, Alexander R Paradyse, Jennifer Le
Chorioamnionitis is an intra-amniotic infection with serious maternal and neonatal complications. Clinical studies suggest antibiotic administration before delivery reduces the risk of complications compared to after delivery. Our center implemented a standardized intrapartum gentamicin computerized provider order entry and dosage form dispensing system intended to improve treatment initiation efficiency in hospitalized obstetric patients. The primary objective of this retrospective study was to determine if these system changes were associated with decreased time from gentamicin ordering to administration in patients with chorioamnionitis...
November 9, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/29020827/the-frequency-and-clinical-significance-of-intra-amniotic-inflammation-in-twin-pregnancies-with-preterm-labor-and-intact-membranes
#13
Kyung Joon Oh, Joon-Seok Hong, Roberto Romero, Bo Hyun Yoon
OBJECTIVE: The objective of this study is to evaluate the frequency and clinical significance of intra-amniotic inflammation in twin pregnancies with preterm labor and intact membranes. STUDY DESIGN: Amniotic fluid (AF) was retrieved from both sacs in 90 twin gestations with preterm labor and intact membranes (gestational age between 20 and 34 6/7 weeks). Preterm labor was defined as the presence of painful regular uterine contractions, with a frequency of at least 2 every 10 min, requiring hospitalization...
October 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29016591/caesarean-section-during-second-stage-of-labor-in-a-tertiary-centre
#14
Padma Gurung, Sameer Malla, Sushma Lama, Anagha Malla, Alka Singh
BACKGROUND: There is an alarming rise in caesarean section leading to increased adverse outcomes for both the mother and fetus when compared with vaginal delivery. Within this increasing caesarean section rate, there is a concerning increase in the rate of second stage caesarean section. This study highlight the feto-maternal outcome of caesarean section in second stage of labour. METHODS: This was a retrospective cohort review of all women with a singleton, cephalic fetus at term delivered by caesarean section in the second stage of labor between April 1, 2013 and March 30, 2017 at Patan Academy of Health Sciences...
September 8, 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28964823/are-amniotic-fluid-neutrophils-in-women-with-intraamniotic-infection-and-or-inflammation-of-fetal-or-maternal-origin
#15
Nardhy Gomez-Lopez, Roberto Romero, Yi Xu, Yaozhu Leng, Valeria Garcia-Flores, Derek Miller, Suzanne M Jacques, Sonia S Hassan, Jonathan Faro, Adham Alsamsam, Ali Alhousseini, Hunter Gomez-Roberts, Bogdan Panaitescu, Lami Yeo, Eli Maymon
BACKGROUND: Neutrophils are the most abundant white blood cells found in the amniotic cavity of women with intraamniotic infection and/or inflammation. The current belief is that these neutrophils are of fetal origin. However, abundant neutrophils have been found in the amniotic fluid of women with a severe acute maternal inflammatory response but without a severe fetal inflammatory response in the placenta, suggesting that these innate immune cells can also be of maternal origin or a mixture of both fetal and maternal neutrophils...
December 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28871085/probing-the-potential-of-mucus-permeability-to-signify-preterm-birth-risk
#16
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/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#17
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/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/28672752/clinical-chorioamnionitis-at-term-viii-a-rapid-mmp-8-test-for-the-identification-of-intra-amniotic-inflammation
#19
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
https://www.readbyqxmd.com/read/28570820/human-milk-oligosaccharides-exhibit-antimicrobial-and-antibiofilm-properties-against-group-b-streptococcus
#20
Dorothy L Ackerman, Ryan S Doster, Jörn-Hendrik Weitkamp, David M Aronoff, Jennifer A Gaddy, Steven D Townsend
Streptococcus agalactiae (Group B Streptococcus, GBS) is a Gram-positive bacterial pathogen that causes invasive infections in both children and adults. During pregnancy, GBS is a significant cause of infection of the fetal membranes (chorioamnionitis), which can lead to intra-amniotic infection, preterm birth, stillbirth, and neonatal sepsis. Recently, breastfeeding has been thought to represent a potential mode of GBS transmission from mother to newborn, which might increase the risk for late-onset sepsis...
August 11, 2017: ACS Infectious Diseases
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