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https://www.readbyqxmd.com/read/28448801/the-placental-factor-in-spontaneous-preterm-birth-in-twin-vs-singleton-pregnancies
#1
Eran Weiner, Ann Dekalo, Ohad Feldstein, Elad Barber, Letizia Schreiber, Jacob Bar, Michal Kovo
OBJECTIVE: The association between infection and inflammatory response in singleton preterm birth (PTB) is well established, yet, less is known about PTB in twins. We aimed to compare the placental component and pregnancy outcome in pregnancies complicated with PTB of singletons vs. twin deliveries. We hypothesized that due to different underlying mechanisms, placental inflammatory lesions will be more prevalent in placentas derived from singleton pregnancies than twins. STUDY DESIGN: Labor characteristics, neonatal outcome and placental histopathology reports of spontaneous PTB at 24-33(6)/7 weeks, from 1/2008-12/2015, were reviewed...
April 22, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28448542/diminished-plasma-levels-of-common-%C3%AE-chain-cytokines-in-pulmonary-tuberculosis-and-reversal-following-treatment
#2
Nathella Pavan Kumar, Vaithilingam V Banurekha, Dina Nair, Subash Babu
BACKGROUND: The immune response to tuberculosis (TB) is T cell dependent. T cells are the major facilitators of protection and effector functions with CD4+ T cells being the most important players, followed by CD8+ T cells. The common γ-chain cytokines IL-2, IL-7, IL-15, and IL-21 play a vital role in peripheral T cell growth and survival. However, the role of common γ-chain cytokines in pulmonary TB (PTB) is poorly understood. AIM AND METHODS: To examine the association of circulating common γ-chain cytokines with TB disease or infection, we examined the systemic levels of IL-2, IL-7, IL-15, and IL-21 in individuals with PTB, latent TB (LTB) or no TB infection (NTB)...
2017: PloS One
https://www.readbyqxmd.com/read/28447045/association-of-vntr-polymorphism-of-tumor-necrosis-factor-receptor-2-tnfrsf1b-with-pulmonary-tuberculosis
#3
Mohammad Naderi, Mohammad Hashemi, Nazanin Moradi
This study was designed to find out the impact of the variable number of tandem repeats (VNTR) of the tumor necrosis factor receptor 2 (TNFRSF1B) on pulmonary tuberculosis (PTB) risk in an Iranian population. This case-control study was done on 159 PTB patients and 158 healthy subjects. Bi-allelic TNFRSF1B VNTR was genotyped by polymerase chain reaction. Logistic regression analysis revealed no significant association between TNFRSF1B VNTR and PTB risk (P>0.05). Our findings proposed that TNFRSF1B VNTR polymorphism is unlikely to confer susceptibility to PTB...
March 2017: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/28444009/-antituberculosis-drug-resistance-in-the-border-of-brazil-with-paraguay-and-bolivia
#4
Marli Marques, Eunice Atsuko Totumi Cunha, Maria do Socorro Nantua Evangelista, Paulo Cesar Basta, Ana Maria Campos Marques, Julio Croda, Sonia Maria Oliveira de Andrade
Objective: To estimate the rate of drug resistance among pulmonary tuberculosis (PTB) cases in the state of Mato Grosso do Sul, Brazil, and specifically in the border areas with Paraguay and Bolivia, as well as to identify associated risk factors. Method: The present cross-sectional, epidemiological study focused on PTB cases recorded between January 2007 and December 2010 in the State Reportable Disease Information System with results of susceptibility tests to rifampicin, isoniazid, ethambutol, and streptomycin...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28436921/feasibility-study-of-entrance-and-exit-dose-measurements-at-the-contra-lateral-breast-with-alanine-electron-spin-resonance-dosimetry-in-volumetric-modulated-radiotherapy-of-breast-cancer
#5
Daniela M Wagner, Petra Huettenrauch, Mathias Anton, Philip von Voigts-Rhetz, Klemens Zink, Hendrik Wolff
PURPOSE: The Physikalisch-Technische Bundesanstalt (PTB) has established a secondary standard measurement system for the dose to water, DW, based on alanine/ ESR (Anton et. al. 2013). The aim of this study was to test the established measurements system for out of field measurements inpatient with breast cancer. METHOD AND MATERIALS: A set of five alanine pellets were affixed to each patients` skin at the contra lateral breast beginning at the sternum and extending over the mammilla to the distal surface...
April 24, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28436175/chronic-hypertension-and-adverse-pregnancy-outcomes-a-cohort-study
#6
Anca M Panaitescu, Argyro Syngelaki, Natalia Prodan, Ranjit Akolekar, Kypros H Nicolaides
OBJECTIVE: To examine the association between chronic hypertension (CH) and a wide range of adverse pregnancy outcomes after adjustment for confounding factors in obstetric history and maternal characteristics. METHODS: This was a prospective screening study for adverse pregnancy outcomes in women with singleton pregnancies attending the first routine hospital visit at 11(+0) -13(+6) weeks' gestation. Data on maternal characteristics, medical and obstetric history and pregnancy outcomes were collected...
April 23, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28435283/unlocking-the-black-box-of-practice-improvement-strategies-to-implement-surgical-safety-checklists-a-process-evaluation
#7
Brigid M Gillespie, Kyra Hamilton, Dianne Ball, Joanne Lavin, Therese Gardiner, Teresa K Withers, Andrea P Marshall
BACKGROUND: Compliance with surgical safety checklists (SSCs) has been associated with improvements in clinical processes such as antibiotic use, correct site marking, and overall safety processes. Yet, proper execution has been difficult to achieve. OBJECTIVES: The objective of this study was to undertake a process evaluation of four knowledge translation (KT) strategies used to implement the Pass the Baton (PTB) intervention which was designed to improve utilization of the SSC...
2017: Journal of Multidisciplinary Healthcare
https://www.readbyqxmd.com/read/28430807/diagnosis-of-smear-negative-tuberculosis-is-greatly-improved-by-xpert-mtb-rif
#8
Giulia Lombardi, Valentina Di Gregori, Nicolò Girometti, Marina Tadolini, Francesco Bisognin, Paola Dal Monte
BACKGROUND: Diagnosis of pulmonary (PTB) and extra-pulmonary tuberculosis (EPTB) in smear-negative patients can be difficult. We assessed retrospectively the performance of Xpert MTB/RIF system (Xpert, Cepheid) in diagnosing smear-negative tuberculosis (TB), which represents the most common form of TB in a low incidence setting. METHODS: Performance of Xpert was compared to acid-fast microscopic examination using Ziehl-Neelsen (ZN) stain in patients with culture-confirmed TB...
2017: PloS One
https://www.readbyqxmd.com/read/28428201/dihydrolipoamide-dehydrogenase-lpd-rv0462-specific-t-cell-recall-responses-are-higher-in-healthy-household-contacts-of-tb-a-novel-immunodominant-antigen-from-m-tuberculosis
#9
Santhi Devasundaram, Alamelu Raja
The partial effectiveness against pulmonary tuberculosis (PTB), displayed by the existing tuberculosis (TB) vaccine, bacillus Calmette-Guérin (BCG), highlights the need for novel vaccines to replace or improve BCG. In TB immunology, antigen-specific cellular immune response is frequently considered indispensable. Latency-associated antigens are intriguing as targets for TB vaccine development. The mycobacterial protein, dihydrolipoamide dehydrogenase (Lpd; Rv0462), the third enzyme of the pyruvate dehydrogenase (PDH) complex, facilitates Mycobacterium tuberculosis to resist host reactive nitrogen intermediates...
April 20, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28426651/association-of-candidate-gene-polymorphisms-with-clinical-subtypes-of-preterm-birth-in-a-latin-american-population
#10
Lucas G Gimenez, Allison M Momany, Fernando A Poletta, Hugo B Krupitzki, Juan A Gili, Tamara D Busch, Cesar Saleme, Viviana R Cosentino, Mariela S Pawluk, Hebe Campaña, Enrique C Gadow, Jeffrey C Murray, Jorge S Lopez-Camelo
BACKGROUND: Preterm birth (PTB) is the leading cause of neonatal mortality and morbidity. PTB is often classified according to clinical presentation: Idiopathic (PTB-I), preterm premature rupture of membranes (PTB-PPROM), and medically induced (PTB-M). The aim of this study was to evaluate the associations between specific candidate genes and clinical subtypes of PTB. METHODS: 24 SNPs were genotyped in 18 candidate genes in 709 infant triads. Of them, 243 were PTB-I, 256 PTB-PPROM, and 210 PTB-M...
April 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28422564/evaluation-of-two-in-house-immunoenzymatic-tests-to-serodiagnose-subclinical-paratuberculisis-in-a-sheep-flock-in-mexicali-valley-mexico
#11
Elizama Ponce Barraza, Tomás Cárdenas Reyna, Carlos Angulo, José Carlomán Herrera Ramírez, Gilberto V López, Gerardo Enrique Medina-Basulto, Shigetoshi Eda, Sawako Hori-Oshima
Paratuberculosis (PTB) or Johne's disease is a common ruminant infectious disease caused by Mycobacterium avium subsp. paratuberculosis (MAP). In this study, two MAP antigens were compared for their diagnostic utility to detect subclinical PTB in a sheep flock in Mexicali, Mexico. Sheep (n = 31) without clinical signs but positive on a direct fecal-polymerase chain reaction were tested with two preabsorbed in-house enzyme linked immunosorbent assays (ELISAs) using: (1) an ethanol-extracted surface lipid antigen (EVELISA) and (2) a protoplasmic antigen (ELISA-PPA)...
April 19, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28421655/reduction-of-preterm-birth-rates-starts-at-preconception
#12
M A Oudijk
Obesity, in the absence of other chronic disease, is associated with preterm birth (PTB) according to the article by Kim et al. Perhaps their most interesting finding is that obesity is positively associated in nulliparous women with extremely PTB rates (birth at < 28 weeks of gestation), both spontaneous and indicated. This extreme PTB group specifically contributes to neonatal morbidity and mortality. This article is protected by copyright. All rights reserved.
April 19, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28421178/applying-precision-public-health-to-prevent-preterm-birth
#13
REVIEW
John P Newnham, Matthew W Kemp, Scott W White, Catherine A Arrese, Roger J Hart, Jeffrey A Keelan
Preterm birth (PTB) is one of the major health-care challenges of our time. Being born too early is associated with major risks to the child with potential for serious consequences in terms of life-long disability and health-care costs. Discovering how to prevent PTB needs to be one of our greatest priorities. Recent advances have provided hope that a percentage of cases known to be related to risk factors may be amenable to prevention; but the majority of cases remain of unknown cause, and there is little chance of prevention...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28410703/frequency-and-outcomes-of-new-patients-with-pulmonary-tuberculosis-in-hatay-province-after-syrian-civil-war
#14
Sibel Doğru, Pınar Döner
OBJECTIVE: It is known that tuberculosis is frequently seen among refugees. Hatay province is one of the cities that substantially expose to migration of refugees after Syrian civil war. In this study, it was aimed to compare frequency of new pulmonary tuberculosis (PTB) cases and treatment success/cure rates between Turkish and Syrian patients. FINDINGS: The study included 211 patients with PTB (178 Turkish and 33 Syrian patients) registered to Hatay Tuberculosis Outpatient Clinic between 2010 and 2013...
April 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28404494/association-between-preterm-birth-and-its-subtypes-and-maternal-sociodemographic-characteristics-during-the-post-transitional-phase-in-a-developing-country-with-a-very-high-human-development-index
#15
B M Araya, M Díaz, D Paredes, J Ortiz
OBJECTIVES: Chile is a post-transitional country evolving towards a stationary population pyramid, which may be associated with increasing preterm birth (PTB) rates. This study aimed to compare maternal sociodemographic characteristics between the start of the post-transition phase (1994) and an established stage (2013) and to evaluate associations between these characteristics and PTB. STUDY DESIGN: An observational analytic design was conducted using national birth records (n = 4,956,311)...
March 7, 2017: Public Health
https://www.readbyqxmd.com/read/28403957/effectiveness-of-elective-cervical-cerclage-according-to-obstetric-history
#16
D Korb, P Marzouk, J Deu, J-F Oury, O Sibony
OBJECTIVE: To assess the effectiveness of elective history-indicated cervical cerclage according to obstetrical history. STUDY DESIGN: We analyzed pregnancy outcome of a retrospective cohort of women who have had history-indicated McDonald's cerclage. Principal outcome was gestational age (GA) at delivery. RESULT: Between January 2003 and December 2013, 205 women were included. We analyzed population in two risk groups: 1- Low-risk (≤2 prior preterm birth (PTB)/second trimester loss (STL), or prior success of cerclage), 2- High risk (≥3 prior PTB/STL, or prior failure of cerclage)...
January 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28403832/centering-and-racial-disparities-cradle-study-rationale-and-design-of-a-randomized-controlled-trial-of-centeringpregnancy-and-birth-outcomes
#17
Liwei Chen, Amy H Crockett, Sarah Covington-Kolb, Emily Heberlein, Lu Zhang, Xiaoqian Sun
BACKGROUND: In the United States, preterm birth (PTB) before 37 weeks gestational age occurs at an unacceptably high rate, and large racial disparities persist. To date, medical and public health interventions have achieved limited success in reducing rates of PTB. Innovative changes in healthcare delivery are needed to improve pregnancy outcomes. One such model is CenteringPregnancy group prenatal care (GPNC), in which individual physical assessments are combined with facilitated group education and social support...
April 13, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28399669/risk-for-spontaneous-preterm-birth-among-inter-racial-ethnic-couples
#18
Bat Zion Shachar, Jonathan A Mayo, Deirdre J Lyell, David K Stevenson, Gary M Shaw, Yair J Blumenfeld
OBJECTIVE: Approximately 10% of US couples are inter-racial/ethnic. Substantial variation in preterm birth (PTB) rates is seen when stratified by race/ethnicity, although most studies focused solely on maternal racial/ethnic demographics. Our aims were to analyze the contribution of paternal in addition to maternal race/ethnicity, and to evaluate risk of spontaneous PTB for previously understudied inter-racial/ethnic couples. METHODS: California singleton live births from 2007 to 2010 were included...
April 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28397611/risk-factors-for-the-treatment-outcome-of-retreated-pulmonary-tuberculosis-patients-in-china-an-optimized-prediction-model
#19
X-M Wang, S-H Yin, J DU, M-L DU, P-Y Wang, J Wu, C M Horbinski, M-J Wu, H-Q Zheng, X-Q Xu, W Shu, Y-J Zhang
Retreatment of tuberculosis (TB) often fails in China, yet the risk factors associated with the failure remain unclear. To identify risk factors for the treatment failure of retreated pulmonary tuberculosis (PTB) patients, we analyzed the data of 395 retreated PTB patients who received retreatment between July 2009 and July 2011 in China. PTB patients were categorized into 'success' and 'failure' groups by their treatment outcome. Univariable and multivariable logistic regression were used to evaluate the association between treatment outcome and socio-demographic as well as clinical factors...
April 11, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28388617/fetal-de-novo-mutations-and-preterm-birth
#20
Jingjing Li, John Oehlert, Michael Snyder, David K Stevenson, Gary M Shaw
Preterm birth (PTB) affects ~12% of pregnancies in the US. Despite its high mortality and morbidity, the molecular etiology underlying PTB has been unclear. Numerous studies have been devoted to identifying genetic factors in maternal and fetal genomes, but so far few genomic loci have been associated with PTB. By analyzing whole-genome sequencing data from 816 trio families, for the first time, we observed the role of fetal de novo mutations in PTB. We observed a significant increase in de novo mutation burden in PTB fetal genomes...
April 2017: PLoS Genetics
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