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Ureaplasma

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https://www.readbyqxmd.com/read/28984242/biochanin-a-partially-restores-the-activity-of-ofloxacin-and-ciprofloxacin-against-topoisomerase-iv-mutation-associated-fluoroquinolone-resistant-ureaplasma-species
#1
Hong Jin, Chao Qi, Yanping Zou, Yingying Kong, Zhi Ruan, Honghui Ding, Xinyou Xie, Jun Zhang
PURPOSE: This study aims to investigate the synergistic antimicrobial activity of four phytoalexins in combination with fluoroquinolones against Ureaplasma spp., a genus of cell wall-free bacteria that are intrinsically resistant to many available antibiotics, making treatment inherently difficult. METHODOLOGY: A total of 22 958 urogenital tract specimens were assessed for Ureaplasma spp. identification and antimicrobial susceptibility. From these, 31 epidemiologically unrelated strains were randomly selected for antimicrobial susceptibility testing to determine the minimum inhibitory concentration (MIC) of four fluoroquinolones and the corresponding quinolone resistance-determining regions (QRDRs)...
October 6, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28980570/-mixed-infections-and-inflammatory-ophthalmic-diseases-clinical-and-laboratory-observations
#2
G M Chernakova, D Yu Maychuk, E A Klescheva, Yu B Slonimskiy, T B Semenova
In recent years, all medical specialists, including ophthalmologists, have been facing the problem of mixed infections. Recurrent inflammation in the anterior and posterior eye segments is often a result of infection by more than one variety of pathogens. MATERIAL AND METHODS: Over the period 2013-2016, 34 patients (14 men and 20 women) with different inflammatory processes in the eye who appeared DNA-positive for mycoplasmas (Mycoplasma hominis, Ureaplasma urealyticum) and/or chlamydiae (Chlamydia trachomatis) (PCR testing of tear fluid and/or urine) were followed up...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28964561/-identification-of-species-of-mycoplasma-and-ureaplasma-diversum-from-argentinian-dairy-herds
#3
Camila Sosa, Liliana Tirante, Javier Chaves, Martín Pol, Arnaldo Ambrogi, José Angel Giraudo, Pablo Tamiozzo
Several species of Mycoplasma and Ureaplasma diversum can cause diseases in dairy cattle, which can be associated or not with clinical manifestations. In our country, the presence of Mycoplasma bovis, Mycoplasma californicum and Mycoplasma canadense has been detected, being the only mycoplasma species identified so far. The objective of this study was to identify other species of the Mycoplasmataceae family. Thirty-five Mycoplasma spp.-like isolates obtained from different samples from cattle, with or without clinical symptoms, from eight herds located in the provinces of Santa Fe, Cordoba, Buenos Aires and San Luis were utilized in the present study...
September 27, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28960028/prevalence-of-and-risk-factors-for-sexually-transmitted-infections-among-korean-adolescents-under-probation
#4
Jin Ju Park, Yu Bin Seo, Sookyung Jeong, Jacob Lee
There is limited research on sexually transmitted infections (STIs) among adolescents in Korea. The objective of this study was to explore the prevalence of and risk factors for STIs among Korean adolescents under probation. A cross-sectional analysis was conducted in one juvenile-delinquent center and five probation offices in Korea to determine the prevalence of STIs caused by the following pathogens: Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, herpes simplex virus (HSV), human immunodeficiency virus (HIV), Treponema pallidum, Mycoplasma hominis, Mycoplasma genitalium, Ureaplasma urealyticum, and Ureaplasma parvum...
November 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28957335/fetal-skin-as-a-pro-inflammatory-organ-evidence-from-a-primate-model-of-chorioamnionitis
#5
Suppawat Boonkasidecha, Paranthaman Senthamarai Kannan, Suhas G Kallapur, Alan H Jobe, Matthew W Kemp
BACKGROUND: Intrauterine infection is a primary cause of preterm birth and fetal injury. The pro-inflammatory role of the fetal skin in the setting of intrauterine infection remains poorly characterized. Whether or not inflammation of the fetal skin occurs in primates remains unstudied. Accordingly, we hypothesized that: i) the fetal primate skin would mount a pro-inflammatory response to preterm birth associated pro-inflammatory agents (lipopolysaccharides from Escherichia coli, live Ureaplasma parvum, interleukin-1β) and; ii) that inhibiting interleukin-1 signaling would decrease the skin inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28951103/the-value-of-molecular-techniques-to-diagnose-ureaplasma-urealyticum-and-nocardia-farcinica-pleuropneumonia-in-a-patient-with-diffuse-large-b-cell-lymphoma
#6
Etienne Canouï, Kim Blanc, Julien Loubinoux, Sandrine Valade, Cécile Hamard, Aurélie Lefebvre, Sandy Amorim, Cécile Bébéar, Veronica Rodriguez-Nava, David Lebeaux, Odile Launay, Marco Alifano, Antoine Rabbat, Solen Kernéis
An unusual case of pleural empyema related to Nocardia farcinica and Ureaplasma urealyticum, occurring after autologous haematopoietic stem cell transplantation in a 30-year-old patient with lymphoma, is reported. This case illustrates the role of repeated and comprehensive microbiological investigations and the contribution of molecular techniques in reaching the aetiological diagnosis.
September 22, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28934751/first-trimester-vaginal-ureaplasma-biovar-colonization-and-preterm-birth-results-of-a-prospective-multicenter-study
#7
Judith Rittenschober-Böhm, Thomas Waldhoer, Stefan M Schulz, Birgit Stihsen, Birgit Pimpel, Katharina Goeral, Erich Hafner, Gerhard Sliutz, David C Kasper, Armin Witt, Angelika Berger
BACKGROUND: While there is a proven association of upper genital tract Ureaplasma infection during pregnancy with adverse pregnancy outcome, the effect of vaginal Ureaplasma colonization on preterm delivery has been controversially debated. OBJECTIVES: We hypothesized that women with isolation of vaginal U. parvum but not U. urealyticum are at increased risk for spontaneous preterm birth (SPB) compared to women with negative results. METHODS: A vaginal swab taken between 12 and 14 weeks of gestation was analyzed for the presence of Ureaplasma biovars by PCR in 4,330 pregnant women...
September 22, 2017: Neonatology
https://www.readbyqxmd.com/read/28919891/moderate-intensity-exercise-affects-gut-microbiome-composition-and-influences-cardiac-function-in-myocardial-infarction-mice
#8
Zuheng Liu, Hai-Yue Liu, Haobin Zhou, Qiong Zhan, Wenyan Lai, Qingchun Zeng, Hao Ren, Dingli Xu
Physical exercise is commonly regarded as protective against cardiovascular disease (CVD). Recent studies have reported that exercise alters the gut microbiota and that modification of the gut microbiota can influence cardiac function. Here, we focused on the relationships among exercise, the gut microbiota and cardiac function after myocardial infarction (MI). Four-week-old C57BL/6J mice were exercised on a treadmill for 4 weeks before undergoing left coronary artery ligation. Cardiac function was assessed using echocardiography...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28918659/ureaplasma-associated-prenatal-perinatal-and-neonatal-morbidities
#9
Christine Silwedel, Christian P Speer, Kirsten Glaser
Ureaplasma species (spp.) have been acknowledged as major causative pathogens in chorioamnionitis and prematurity, but may also contribute to key morbidities in preterm infants. Several epidemiological and experimental data indicate an association of neonatal Ureaplasma colonization and/or infection with bronchopulmonary dysplasia. Furthermore, a potential causal relation with other inflammation-induced morbidities, such as intraventricular hemorrhage, white matter injury, necrotizing enterocolitis, and retinopathy of prematurity, has been debated...
November 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28904056/simultaneously-monitoring-immune-response-and-microbial-infections-during-pregnancy-through-plasma-cfrna-sequencing
#10
Wenying Pan, Thuy T M Ngo, Joan Camunas-Soler, Chun-Xiao Song, Mark Kowarsky, Yair J Blumenfeld, Ronald J Wong, Gary M Shaw, David K Stevenson, Stephen R Quake
BACKGROUND: Plasma cell-free RNA (cfRNA) encompasses a broad spectrum of RNA species that can be derived from both human cells and microbes. Because cfRNA is fragmented and of low concentration, it has been challenging to profile its transcriptome using standard RNA-seq methods. METHODS: We assessed several recently developed RNA-seq methods on cfRNA samples. We then analyzed the dynamic changes of both the human transcriptome and the microbiome of plasma during pregnancy from 60 women...
September 13, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28889017/mycoplasmas-brain-invaders
#11
REVIEW
Rubén S Rosales, Roberto Puleio, Guido R Loria, Salvatore Catania, Robin A J Nicholas
Mycoplasmas of humans and animals are usually associated with respiratory, autoimmune, genital and joint diseases. Human mycoplasmas have also been known to affect the brain. Severe central nervous system (CNS) diseases, such as encephalitis, have been linked to Mycoplasma pneumoniae and ureaplasma infections. Less well known is the sheep and goat pathogen, Mycoplasma agalactiae, which has been found in large quantities in the brain where it may be responsible for non-purulent encephalitis as well as ataxia in young animals...
September 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28876387/assessment-of-cow-and-farm-level-risk-factors-associated-with-ureaplasma-diversum-in-pasture-based-dairy-systems-a-field-study
#12
Josefa M Nascimento-Rocha, Benedito D DE Oliveira, Emannuel Arnhold, Regiani N G Pôrto, Svetlana F Lima, Maria Lucia Gambarini
Potential risk factors for Ureaplasma diversum in the vaginal mucus of 1,238 dairy cows were included in a multivariate logistic regression model, based on the cow level (i.e., granular vulvovaginitis [+GVV], yearly milk production [4500 kg or more], pregnancy, predominance of Bos taurus [+Bos Taurus], score of corporal condition [at least 2.5], concomitant positivity for Escherichia coli [+E.coli]), and farm level i.e., milking room hygiene (-Milking room), dunghill location, and replacement female). Ureaplasma diversum was present in 41...
July 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28871927/sociodemographic-sexual-behavior-and-microbiological-profiles-of-men-attending-public-health-laboratories-for-testing-for-sexually-transmitted-diseases
#13
Mario Sviben, Sunčanica Ljubin-Sternak, Tomislav Meštrović, Jasmina Vraneš
In order to identify the groups at risk of sexually transmitted diseases (STDs), we assessed the sociodemographic profiles of men testing for STD, their sexual habits, and the results of microbiological analysis. During a three-year period, a total of 700 men older than 18 years of age completed the questionnaire regarding sociodemographic and sexual behavior. Urethral swabs were taken for microbiological analysis. Thirty-three percent of respondents reported not using condoms. Those that do not use condoms were predominantly less educated, unmarried but in steady relationships, employed, with children, and smokers...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28867456/antimicrobial-activity-of-bitespiramycin-a-new-genetically-engineered-macrolide
#14
Weiqing He, Chunping Yang, Xiaofeng Zhao, Yiguang Wang
The antimicrobial activity of bitespiramycin (BT) against Chlamydia trachomatis (Ct), Chlamydia pneumoniae (Cp), Ureaplasma urealyticum (Uu), and Mycoplasma pneumoniae (Mp), was compared with those of azithromycin (AZM) and acetylspiramycin (AT-SP) in vitro. Furthermore, the anti-Mp activities of BT and AZM were evaluated in a hamster model. The activities of BT in vitro were similar to those of AZM but were more effective than those of AT-SP. BT effectively inhibited Mp infection at a dose of 200mg/kg in a hamster model...
October 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28859153/clonality-and-distribution-of-clinical-ureaplasma-isolates-recovered-from-male-patients-and-infertile-couples-in-china
#15
Zhi Ruan, Ting Yang, Xinyan Shi, Yingying Kong, Xinyou Xie, Jun Zhang
Ureaplasma spp. have gained increasing recognition as pathogens in both adult and neonatal patients with multiple clinical presentations. However, the clonality of this organism in the male population and infertile couples in China is largely unknown. In this study, 96 (53 U. parvum and 43 U. urealyticum) of 103 Ureaplasma spp. strains recovered from genital specimens from male patients and 15 pairs of infertile couples were analyzed using multilocus sequence typing (MLST)/expanded multilocus sequence typing (eMLST) schemes...
2017: PloS One
https://www.readbyqxmd.com/read/28843262/cytological-features-associated-with-ureaplasma-urealyticum-in-pap-cervical-smear
#16
Mitsuaki Okodo, Jumpei Kawamura, Kaori Okayama, Kenji Kawai, Tadasi Fukui, Natsuko Shiina, Timothy Caniz, Hiromi Yabusaki, Masahiko Fujii
Purpose: Ureaplasma urealyticum is associated with several obstetric complications and increases the importance of risk management in pregnant women. Furthermore, U. urealyticum has been identified as a cofactor that interacts with human papillomavirus infection in cervical cancer onset. The aim of this study was to assess specific cytological features of U. urealyticum infection in Pap smears to determine whether additional microbiological testing should be performed for pregnant women with a high possibility of U...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28835692/the-vaginal-microbiome-of-pregnant-women-is-less-rich-and-diverse-with-lower-prevalence-of-mollicutes-compared-to-non-pregnant-women
#17
Aline C Freitas, Bonnie Chaban, Alan Bocking, Maria Rocco, Siwen Yang, Janet E Hill, Deborah M Money
The vaginal microbiome plays an important role in maternal and neonatal health. Imbalances in this microbiota (dysbiosis) during pregnancy are associated with negative reproductive outcomes, such as pregnancy loss and preterm birth, but the underlying mechanisms remain poorly understood. Consequently a comprehensive understanding of the baseline microbiome in healthy pregnancy is needed. We characterized the vaginal microbiomes of healthy pregnant women at 11-16 weeks of gestational age (n = 182) and compared them to those of non-pregnant women (n = 310)...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28827422/antibacterial-resistance-in-ureaplasma-species-and-mycoplasma-hominis-isolates-from-urine-cultures-in-college-aged-females
#18
Marissa A Valentine-King, Mary B Brown
Urinary tract infections (UTIs) affect nearly 20% of women age 15 to 29 and account for an estimated $3.5 billion in costs. Antibiotic resistance prolongs UTI treatment, and resistance profiles vary regionally. This regional variation is an important consideration in guiding empirical treatment selection. Regional studies in the United States have identified tetracycline resistance in over one-third of Ureaplasma species isolates, but no studies have evaluated antibiotic resistance levels in college-aged women with a first-time UTI...
October 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28814589/ureaplasma-parvum-causing-life-threatening-disease-in-a-susceptible-patient
#19
Alexander Korytny, Roni Nasser, Yuval Geffen, Tom Friedman, Mical Paul, Nesrin Ghanem-Zoubi
A 56-year-old man with lymphoma developed orchitis followed by septic arthritis of his right glenohumeral joint. Synovial fluid cultures were negative but PCR amplification test was positive forUreaplasmaparvum. The patient was treated with doxycycline. Two and a half years later, the patient presented with shortness of breath and grade III/IV diastolic murmur on auscultation. Echocardiography revealed severely dilated left heart chambers, severe aortic regurgitation and several mobile masses on the aortic valve cusps suspected to be vegetations...
August 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28813455/maternal-serum-c-reactive-protein-concentration-and-intra-amniotic-inflammation-in-women-with-preterm-prelabor-rupture-of-membranes
#20
Ivana Musilova, Marian Kacerovsky, Martin Stepan, Tomas Bestvina, Lenka Pliskova, Barbora Zednikova, Bo Jacobsson
OBJECTIVE: To evaluate maternal serum C-reactive protein (CRP) concentrations in pregnancies complicated by preterm prelabor rupture of membranes (PPROM) in relation to the presence of microbial invasion of the amniotic cavity (MIAC) and/or intra-amniotic inflammation (IAI). METHODS: Two hundred and eighty-seven women with singleton pregnancies complicated by PPROM between 2014 and 2016 were included in this study. Maternal blood and amniotic fluid samples were collected at the time of admission...
2017: PloS One
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