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Ureaplasma

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https://www.readbyqxmd.com/read/27915439/presence-of-ureaplasma-diversum-in-the-genital-tracts-of-female-dairy-cattle-in-mato-grosso-state-brazil
#1
Jaqueline B Azevedo, Gustavo S Silva, Priscylla S Rocha, Letícia C Pitchenin, Valéria Dutra, Luciano Nakazato, Anderson Castro Soares de Oliveira, Caroline A Pescador
Ureaplasma diversum infection in bovine females may result in various reproductive problems, including granular vulvovaginitis, abortion, weak calves, salpingitis, and spontaneous abortion. The presence of U. diversum in a dairy bovine population from midwestern Brazil has not been established. The aim of this study was to determine whether U. diversum was present in dairy cattle from midwestern Brazil using polymerase chain reaction (PCR). Vulvovaginal mucus was analyzed from 203 cows located in six municipalities in the north region of Mato Grosso State, Brazil...
December 3, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27911430/-clinical-presentations-of-herpes-zoster-ophthalmicus-diagnosis-and-therapy
#2
G M Chernakova, E A Kleshcheva, T B Semenova
: Approximately a quarter of the world's population at some point in life is at risk of developing shingles (Herpes Zoster). In 10-20% of cases the first branch of the trigeminal nerve gets involved (Herpes Zoster Ophthalmicus, HZO). Ophthalmic complications of HZO are able to cause a significant reduction in visual function. AIM: To study and summarize clinical features of HZO (including the rate of complications and their nature) and to determine the relationship between clinical and laboratory data from these patients...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27884651/analysis-of-mutations-in-dna-gyrase-and-topoisomerase-iv-of-ureaplasma-urealyticum-and-ureaplasma-parvum-serovars-resistant-to-fluoroquinolones
#3
Giorgio Piccinelli, Franco Gargiulo, Valeria Biscaro, Francesca Caccuri, Arnaldo Caruso, Maria Antonia De Francesco
This study aims to determine the prevalence of fluoroquinolone resistance of Ureaplasma biovars and serovars isolated from urogenital clinical samples and determine the underlying molecular mechanism for quinolone resistance for all resistant isolates. Of 105 samples confirmed as positive for U. urealyticum/U. parvum, 85 were resistant to quinolones by the Mycoplasma-IST2 kit. However, only 43 out of 85 quinolone resistant isolates had amino acid substitutions in GyrA, GyrB, ParC and ParE proteins underlining that this assay have mis-identified as fluoroquinolone resistant 42 isolates...
November 21, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27870156/combinations-and-loads-of-bacteria-affect-the-cytokine-production-by-fetal-membranes-an-in-vitro-study
#4
Nathalia Mayumi Noda-Nicolau, Jossimara Polettini, Morgan R Peltier, Márcia Guimarães da Silva, Ramkumar Menon
PROBLEM: The polybacterial invasion and inflammation of the amniotic cavity is a common scenario in PTB, and then, we analyzed the cytokine production by human fetal membranes to better understand the host response to polybacterial infections. METHOD OF STUDY: Fetal membranes were treated by heat-inactivated genital mycoplasmas and Gardnerella vaginalis at 10(3) or 10(6) colony/color-forming units/mL alone or in combination. Cytokines/receptors were measured in the medium by immunoassays...
December 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27862576/foetal-ureaplasma-parvum-bacteraemia-as-a-function-of-gestation-dependent-complement-insufficiency-evidence-from-a-sheep-model-of-pregnancy
#5
Matthew W Kemp, Shatha Ahmed, Michael L Beeton, Matthew S Payne, Masatoshi Saito, Yuichiro Miura, Haruo Usuda, Suhas G Kallapur, Boris W Kramer, Sarah J Stock, Alan H Jobe, John P Newnham, Owen B Spiller
PROBLEM: Complement is a central defence against sepsis, and increasing complement insufficiency in neonates of greater prematurity may predispose to increased sepsis. Ureaplasma spp. are the most frequently cultured bacteria from preterm blood samples. METHOD OF STUDY: A sheep model of intrauterine Ureaplasma parvum infection was used to examine in vivo Ureaplasma bacteraemia at early and late gestational ages. Complement function and Ureaplasma killing assays were used to determine the correlation between complement potency and bactericidal activity of sera ex vivo...
November 14, 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27861554/high-diversity-and-variability-in-the-vaginal-microbiome-in-women-following-preterm-premature-rupture-of-membranes-pprom-a-prospective-cohort-study
#6
Teenus Paramel Jayaprakash, Emily C Wagner, Julie van Schalkwyk, Arianne Y K Albert, Janet E Hill, Deborah M Money
OBJECTIVE: To characterize the vaginal microbiota of women following preterm premature rupture of membranes (PPROM), and determine if microbiome composition predicts latency duration and perinatal outcomes. DESIGN: A prospective cohort study. SETTING: Canada. POPULATION: Women with PPROM between 24+0 and 33+6 weeks gestational age (GA). METHODS: Microbiome profiles, based on pyrosequencing of the cpn60 universal target, were generated from vaginal samples at time of presentation with PPROM, weekly thereafter, and at delivery...
2016: PloS One
https://www.readbyqxmd.com/read/27859690/prevalence-and-distribution-of-chlamydia-trachomatis-genovars-in-indian-infertile-patients-a-pilot-study
#7
Jyoti Rawre, Benu Dhawan, Neena Malhotra, Vishnubhatla Sreenivas, Shobha Broor, Rama Chaudhry
To determine the prevalence and distribution of Chlamydia trachomatis genovars in patients with infertility by PCR-RFLP and ompA gene sequencing. Prevalence of other etiological agents (viz., Ureaplasma spp. and Mycoplasma hominis) were also assessed. Endocervical swabs were collected from 477 women and urine was collected from 151 men attending the Infertility Clinic. The samples were screened for C. trachomatis by cryptic plasmid, ompA gene and nested ompA gene PCR. Genotyping was performed by PCR-RFLP and sequencing...
December 2016: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/27828734/anti-inflammatory-effects-of-the-new-generation-synthetic-surfactant-chf5633-on-ureaplasma-induced-cytokine-responses-in-human-monocytes
#8
K Glaser, M Fehrholz, B Henrich, H Claus, M Papsdorf, C P Speer
BACKGROUND: Synthetic surfactants represent a promising alternative to animal-derived preparations in the treatment of neonatal respiratory distress syndrome. The synthetic surfactant CHF5633 has proven biophysical effectiveness and, moreover, demonstrated anti-inflammatory effects in LPS-stimulated monocytes. With ureaplasmas being relevant pathogens in preterm lung inflammation, the present study addressed immunomodulatory features on Ureaplasma-induced monocyte cytokine responses. METHODS: Ureaplasma parvum-stimulated monocytes were exposed to CHF5633...
November 9, 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27803864/evaluation-of-patients-with-dry-eye-disease-for-conjunctival-chlamydia-trachomatis-and-ureaplasma-urealyticum
#9
Maha Mohssen Abdelfattah, Rania Abdelmonem Khattab, Magda H Mahran, Ebrahim S Elborgy
AIM: To determine the possibility of the development of dry eye disease (DED) as a result of persistent infection with Chlamydia trachomatis and Ureaplasma urealyticum in the conjunctiva of patients. METHODS: This study was conducted on 58 patients of age range 20-50y, diagnosed with DED confirmed by Schirmer I test and tear breakup time. The non-dry eye control group included 27 subjects of the same age. Ocular specimens were collected as conjunctival scrapings and swabs divided into three groups: the first used for bacterial culture, the second and third taken to detect Chlamydia trachomatis and Ureaplasma urealyticum by direct fluorescent antibody (DFA) assay and polymerase chain reaction (PCR) method...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27798207/antibiotic-resistance-among-ureaplasma-spp-isolates-cause-for-concern
#10
REVIEW
M L Beeton, O B Spiller
There is growing global concern regarding the rise of antibiotic-resistant organisms. Many of these reports have focused on various Gram-positive and Gram-negative pathogens, with little attention to the genus Ureaplasma. Ureaplasma spp. are associated with numerous infectious diseases affecting pregnant women, neonates and the immunocompromised. Treatment options are extremely limited due to high levels of intrinsic resistance resulting from the unique physiology of these organisms and further restricted in cases of the developing fetus or neonate, often limiting therapeutic options to predominantly macrolides or rarely fluoroquinolones...
October 20, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27796644/ureaplasma-parvum-causes-hyperammonemia-in-a-pharmacologically-immunocompromised-murine-model
#11
X Wang, K E Greenwood-Quaintance, M J Karau, D R Block, J N Mandrekar, S A Cunningham, J M Mallea, R Patel
A relationship between hyperammonemia and Ureaplasma infection has been shown in lung transplant recipients. We have demonstrated that Ureaplasma urealyticum causes hyperammonemia in a novel immunocompromised murine model. Herein, we determined whether Ureaplasma parvum can do the same. Male C3H mice were given mycophenolate mofetil, tacrolimus, and prednisone for 7 days, and then challenged with U. parvum intratracheally (IT) and/or intraperitoneally (IP), while continuing immunosuppression over 6 days. Plasma ammonia concentrations were determined and compared using Wilcoxon rank-sum tests...
October 28, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27756710/is-ureaplasma-spp-the-leading-causative-agent-of-acute-chorioamnionitis-in-patients-with-preterm-birth
#12
Judith Kikhney, Dinah von Schöning, Ina Steding, Julia Schulze, Annett Petrich, Andreas Hiergeist, Udo Reischl, Annette Moter, Anke Thomas
OBJECTIVES: The aim of this study was to detect microorganisms in foetal membranes and placental tissue in preterm chorioamnionitis by combining FISH with broad range PCR. The combination of the two molecular techniques enables identification and localization of the microorganisms within the tissue, confirming their clinical relevance. METHODS: In a prospective cohort study, we compared 31 patients with preterm premature rupture of membranes or preterm labour and preterm delivery by caesarean section with a control group of 26 participants with elective caesarean section at term...
October 15, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27756249/ureaplasma-parvum-genotype-combined-vaginal-colonisation-with-candida-albicans-and-spontaneous-preterm-birth-in-an-australian-cohort-of-pregnant-women
#13
Matthew S Payne, Demelza J Ireland, Rory Watts, Elizabeth A Nathan, Lucy L Furfaro, Matthew W Kemp, Jeffrey A Keelan, John P Newnham
BACKGROUND: Detection of Ureaplasma, Mycoplasma and Candida spp. in the vagina during pregnancy has previously been associated with preterm birth (PTB). However, the prevalence of these microorganisms and the associated obstetric risks (likely to be population-specific) have not been determined in Australian women; furthermore, in the case of Ureaplasma spp., very few studies have attempted characterisation at the species level and none have examined genotype/serovar status to further refine risk assessment...
October 18, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27752891/patients-with-cervical-ureaplasma-urealyticum-and-chlamydia-trachomatis-infection-undergoing-ivf-icsi-et-the-need-for-new-paradigm
#14
Qing-Zhen Xie, Wang-Ming Xu, Qian-Rong Qi, Zeng-Li Luo, Lan Dong
Genital tract infections with ureaplasma urealyticum (UU) and chlamydia trachomatis (CT) are the most frequent sexually-transmitted disease worldwide. UU and CT infections are considered to be the leading cause for infertility and adverse pregnancy outcomes. However, little is known about the specific effect of cervical UU and CT infections on the etiology of female infertility, as well as the pregnancy outcomes of the patients undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET)...
October 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27751210/-effect-of-perinatal-factors-on-postnatal-development-of-lymphocyte-subsets-in-early-preterm-infants
#15
Ping Zhou, Rui Chen, Cai-Yan Zou, Min Zhang, Zhao-Hong Chen, Li-Ya Ma
OBJECTIVE: To study the postnatal changes in lymphocyte subsets in early preterm infants and the effect of perinatal factors on lymphocyte subsets. METHODS: A total of 61 early preterm infants were enrolled. Flow cytometry was used to measure the absolute counts of lymphocytes and lymphocyte subsets at 1, 7, 14, and 28 days after birth, as well as at 6 months after birth for 17 of these early preterm infants. The effects of perinatal factors, such as antepartum use of hormone, intrauterine infection, gestational age at birth, and Ureaplasma urealyticum (UU) colonization, on lymphocyte subsets were analyzed...
October 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27743513/effect-of-tripterygium-wilfordii-polyglycoside-on-experimental-prostatitis-caused-by-ureaplasma-urealyticum-in-rats
#16
Pingnan Shan, Zhiyong Lu, Lihong Ye, Yaqin Fang, Suhong Tan, Guohong Xuan, Jincheng Ru, Liming Mao
BACKGROUND Prostatitis is a common and refractory urological disease with complicated etiology. Ureaplasma urealyticum (UU) has a close relationship with human urinary tract infection that can induce nonbacterial prostatitis. Tripterygium wilfordii polyglycoside (TWP) is a non-steroidal immune inhibitor that causes significant immune suppression and anti-inflammatory effects. Its role in prostatitis caused by UU has not yet been established. The aim of this study was to investigate the effect of TWP on UU-infected prostatitis in a rat model...
October 15, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27717929/ultrasonographic-peculiarities-of-fetoplacental-complex-in-pregnancy-complicated-by-intrauterine-infection
#17
Nicholay A Shcherbina, Liudmyla A Vygovskaya
INTRODUCTION: the relevance of intrauterine infections is determined by significant peri- and postnatal loss as well as health impairment, which often results in disability and reduced quality of life. Ultrasonography is employed in order to provide a reliable assessment of the functional state of the fetoplacental system secondary to intrauterine fetal infection in the course of pregnancy. Ultrasound imaging is essential in diagnosis of various preclinical complications of pregnancy and detection of abnormalities in the developing fetus...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27671057/in-vitro-activities-of-omadacycline-ptk-0796-and-other-antimicrobial-agents-against-human-mycoplasmas-and-ureaplasmas
#18
Ken B Waites, Donna M Crabb, Yang Liu, Lynn B Duffy
In vitro activities of omadacycline, a new aminomethylcycline, were determined for Mycoplasma and Ureaplasma spp. and compared with those of azithromycin, clindamycin, moxifloxacin, tetracycline, and doxycycline. All omadacycline MICs were <2 μg/ml. MIC90s were 0.063 μg/ml for Mycoplasma hominis, 0.25 μg/ml for Mycoplasma pneumoniae, and 2 μg/ml for Ureaplasma spp. Omadacycline had the lowest MIC90 among all drugs tested against M. hominis Omadacycline activity was not affected by macrolide, tetracycline, or fluoroquinolone resistance...
December 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27632777/ureaplasma-infection-mediated-release-of-matrix-metalloproteinase-9-and-pgp-a-novel-mechanism-of-preterm-rupture-of-membranes-and-chorioamnionitis
#19
Charitharth V Lal, Xin Xu, Patricia Jackson, Thomas P Atkinson, Ona M Faye-Petersen, Jegen Kandasamy, Ken Waites, Joseph R Biggio, Amit Gaggar, Namasivayam Ambalavanan
BACKGROUND: Premature rupture of membranes and preterm delivery are associated with Ureaplasma infection. We hypothesized that Ureaplasma induced extracellular collagen fragmentation results in production of the tripeptide PGP (proline-glycine-proline), a neutrophil chemoattractant. PGP release from collagen requires matrix metalloproteases (MMP-8/MMP-9) along with a serine protease, prolyl endopeptidase (PE). METHODS: Ureaplasma culture negative amniotic fluid (indicated preterm birth, n = 8; spontaneous preterm birth, n = 8) and Ureaplasma positive amniotic fluid (spontaneous preterm birth, n = 8) were analyzed by electro-spray ionization-liquid chromatography tandem mass spectrometry for PGP, and for MMP-9 by zymography...
October 26, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27615066/the-microbiome-of-a-striped-dolphin-stenella-coeruleoalba-stranded-in-portugal
#20
Filipa Godoy-Vitorino, Arnold Rodriguez-Hilario, Ana Luísa Alves, Filipa Gonçalves, Beatriz Cabrera-Colon, Cristina Sousa Mesquita, Pedro Soares-Castro, Marisa Ferreira, Ana Marçalo, José Vingada, Catarina Eira, Pedro Miguel Santos
Infectious diseases with epizootic consequences have not been fully studied in marine mammals. Presently, the unprecedented depth of sequencing, made available by high-throughput approaches, allows detailed comparisons of the microbiome in health and disease. This is the first report of the striped dolphin microbiome in different body sites. Samples from one striped female edematous dolphin were acquired from a variety of body niches, including the blowhole, oral cavity, oral mucosa, tongue, stomach, intestines and genital mucosa...
September 9, 2016: Research in Microbiology
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