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https://www.readbyqxmd.com/read/28722570/mycobacterium-tuberculosis-infection-in-close-childhood-contacts-of-adults-with-pulmonary-tuberculosis-is-increased-by-secondhand-exposure-to-tobacco
#1
Ifedayo M O Adetifa, Lindsay Kendall, Simon Donkor, Moses D Lugos, Abdulrahman S Hammond, Patrick K Owiafe, Martin O C Ota, Roger H Brookes, Philip C Hill
Tobacco use is a major risk factor for tuberculosis (TB). Secondhand smoke (SHS) is also a risk factor for TB and to a lesser extent, Mycobacterium tuberculosis infection without disease. We investigated the added risk of M. tuberculosis infection due to SHS exposure in childhood contacts of TB cases in The Gambia. Participants were childhood household contacts aged ≤ 14 years of newly diagnosed pulmonary TB (PTB) cases. The intensity of exposure to the case was categorized according to whether contacts slept in the same room, same house, or a different house as the case...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721972/ultrasound-imaging-features-of-isolated-pancreatic-tuberculosis
#2
Yi Dong, Christian Jürgensen, Rajesh Puri, Mirko D'Onofrio, Michael Hocke, Wen-Ping Wang, Nathan Atkinson, Malay Sharma, Christoph F Dietrich
BACKGROUND AND OBJECTIVES: Isolated pancreatic tuberculosis (PTB) is extremely rare worldwide. The purpose of this multicenter retrospective study is to analyze imaging features of histologically confirmed isolated PTB in order to determine the diagnostic features of the new methods contrast enhanced ultrasound (CEUS), ultrasound elastography and contrast enhanced endoscopic ultrasound (CE-EUS). PATIENTS AND METHODS: We report on a retrospective data collection of 12 cases of PTB confirmed by histology or cytology...
July 19, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28720616/concomitant-preterm-birth-and-severe-small-for-gestational-age-birth-weight-among-infants-of-immigrant-mothers-in-ontario-originating-from-the-philippines-and-east-asia-a-population-based-study
#3
Emily Bartsch, Alison L Park, Jennifer Jairam, Joel G Ray
OBJECTIVES: Women from the Philippines form one of the largest immigrant groups to North America. Their newborns experience higher rates of preterm birth (PTB), and separately, small-for-gestational age (SGA) birth weight, compared with other East Asians. It is not known if Filipino women are at elevated risk of concomitant PTB and severe SGA (PTB-SGA), a pathological state likely reflective of placental dysfunction and neonatal morbidity. METHODS: We conducted a population-based study of all singleton or twin live births in Ontario, from 2002 to 2011, among immigrant mothers from the Philippines (n=27 946), Vietnam (n=15 297), Hong Kong (n=5618), South Korea (n=5148) and China (n=42 517)...
July 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28718380/the-burden-of-genetic-and-epigenetic-traits-in-prematurity
#4
Bruna Ribeiro de Andrade Ramos, Márcia Guimarães da Silva
Despite decades of investigations and accumulated scientific knowledge, preterm birth (PTB) remains a significant burden worldwide. Several mechanisms have been proposed to explain this condition, and a number of risk factors from infectious to behavioral and genetic/epigenetic factors influence this outcome. The heritability of PTB is estimated to be 17% to 36%, which demonstrates that genetic predisposition plays a key role in PTB. Structural DNA modifications without changes in the DNA sequence and post-transcriptional regulation also have an impact on gene expression and thus influence pregnancy outcomes...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28715439/knowledge-attitude-and-perceived-stigma-towards-tuberculosis-among-pastoralists-do-they-differ-from-sedentary-communities-a-comparative-cross-sectional-study
#5
Bezawit Temesgen Sima, Tefera Belachew, Fekadu Abebe
BACKGROUND: Ethiopia is ninth among the world high tuberculosis (TB) burden countries, pastoralists being the most affected population. However, there is no published report whether the behavior related to TB are different between pastoralist and the sedentary communities. Therefore, the main aim of this study is to assess the pastoralist community knowledge, attitude and perceived stigma towards tuberculosis and their health care seeking behavior in comparison to the neighboring sedentary communities and this may help to plan TB control interventions specifically for the pastoralist communities...
2017: PloS One
https://www.readbyqxmd.com/read/28709490/serum-levels-of-soluble-urokinase-plasminogen-activator-receptor-supar-as-a-marker-of-tuberculosis-treatment-efficacy
#6
V Indumati, V Vijay, D Krishnaswamy, V Rajeshwari, A Ramesh, D Shantala, A Shilpa
BACKGROUND: Upon diagnosis, Pulmonary Tuberculosis patients are treated for TB for a period of 6-9 months. At present, there exists very little indication of the efficacy of the particular treatment. A few previous studies have shown that soluble urokinase plasminogen activator receptor (SuPAR) may be used as treatment efficacy marker. SuPAR is a cellular receptor for serine protease urokinase plasminogen activator (uPA). Bacterial endotoxins and cytokines of the innate immune system stimulate the secretion of uPA in monocytes & neutrophils...
July 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28706753/evaluation-of-institute-of-medicine-guidelines-for-gestational-weight-gain-in-women-with-chronic-hypertension
#7
Anne M Siegel, Alan T Tita, Hannah Machemehl, Joseph R Biggio, Lorie M Harper
Objective  To assess the impact of gestational weight gain (GWG) outside the Institute of Medicine (IOM) recommendations on perinatal outcomes in pregnancies complicated by chronic hypertension (HTN). Methods  The study consisted of a retrospective cohort of all singletons with HTN from 2000 to 2014. Maternal outcomes examined were superimposed preeclampsia and cesarean delivery. Neonatal outcomes were small for gestational age (SGA), large for gestational age (LGA), and preterm birth (PTB). Groups were compared using analysis of variance and chi-squared test for trend...
July 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28705268/description-and-factors-affecting-the-referral-of-presumptive-tuberculosis-patients-in-china
#8
Tao Li, Hui Zhang, Li Xia Wang, Yu Pang, Xin DU
To describe and analyze the factors affecting the referral of presumptive tuberculosis patients between health-care facilities that are not affiliated with the National TB Control Program (NTP) and NTP-designated medical facilities in China, we carried out a retrospective study based on data collected in the Tuberculosis Information Management System in 2015. Out of 324,221 presumptive pulmonary tuberculosis (PTB) cases reported by non-NTP health-care facilities, 302,006 (93.1%) reported cases successfully arrived at designated medical facilities and 22,215 cases (6...
June 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28699097/early-preterm-birth-across-generations-among-whites-and-african-americans-a-population-based-study
#9
Rebecca A Dorner, Kristin M Rankin, James W Collins
Objectives To determine the extent to which non-Latina White and African-American mother's gestational age is associated with extremely early (<30 weeks), modestly early (30-33 weeks), and late (34-36 weeks) infant preterm birth (PTB) rates. Methods Race-specific stratified and multivariable logistic regression analyses were performed on the Illinois Transgenerational Birth File of non-Latino White and African-American infants (born 1989-1991) and their mothers (born 1956-1976). Results White mothers (n = 184) born at <30 weeks had a greater extremely early infant PTB rate than White mothers (n = 131,980) born at term: 1...
July 11, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28698152/novel-functions-of-ccm1-delimit-the-relationship-of-ptb-ph-domains
#10
Jun Zhang, Pallavi Dubey, Akhil Padarti, Aileen Zhang, Rinkal Patel, Vipulkumar Patel, David Cistola, Ahmed Badr
BACKGROUND: Three NPXY motifs and one FERM domain in CCM1 makes it a versatile scaffold protein for tethering the signaling components together within the CCM signaling complex (CSC). The cellular role of CCM1 protein remains inadequately expounded. Both phosphotyrosine binding (PTB) and pleckstrin homology (pH) domains were recognized as structurally related but functionally distinct domains. METHODS: By utilizing molecular cloning, protein binding assays and RT-qPCR to identify novel cellular partners of CCM1 and its cellular expression patterns; by screening candidate PTB/PH proteins and subsequently structurally simulation in combining with current X-ray crystallography and NMR data to defined the essential structure of PTB/PH domain for NPXY-binding and the relationship among PTB, pH and FERM domain(s)...
July 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28697396/novel-mutations-in-the-exon-5-intron-2-and-3-utr-regions-of-il-12b-gene-were-observed-in-clinically-proven-tuberculosis-patients-of-south-india
#11
Pallipamu Prakash Babu, Pasupuleti Santhosh Kumar, Alladi Mohan, Bhattaram Siddhartha Kumar, Potukuchi Venkata Gurunadha Krishna Sarma
Interleukin-12 (IL-12) is formed by the interaction of IL-12p35 and IL-12p40 expressed independently from IL-12A and IL-12B genes. This interleukin plays prominent role in the T-helper type-1 (Th1) response against intracellular pathogens. Variations in IL-12B gene causes disruption of various activities one of them is suppression of Th1 response and is one of the characteristic features observed in patients with active tuberculosis. Hence, in the present study IL-12B gene status was evaluated in 50 new sputum smear-positive pulmonary tuberculosis patients (NSP-PTB) as identified by Ziehl-Nielsen (ZN) staining and 50 apparently healthy control subjects (HCS) who were sputum smear-negative...
July 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28696520/delays-in-presentation-and-diagnosis-of-pulmonary-tuberculosis-a-retrospective-study-of-a-tertiary-health-service-in-western-melbourne-2011-2014
#12
Eloise Williams, Allen Cheng, Garry P Lane, Stephen David Guy
BACKGROUND: Effective tuberculosis (TB) control relies on early diagnosis and prompt treatment commencement. AIM: To investigate delays in presentation and diagnosis of pulmonary TB (PTB) in a low incidence setting in western Melbourne. METHODS: A single-centered retrospective observational cohort study of symptomatic patients ≥ 18 years newly diagnosed with PTB that were commenced on treatment between 1(st) December 2011 and 1(st) December 2014 at a tertiary teaching hospital in western Melbourne...
July 11, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28694828/prevalence-and-risk-factors-of-delayed-sputum-conversion-among-patients-treated-for-smear-positive-ptb-in-northwestern-rural-tanzania-a-retrospective-cohort-study
#13
Daniel W Gunda, Igembe Nkandala, Godfrey A Kavishe, Semvua B Kilonzo, Rodrick Kabangila, Bonaventura C Mpondo
INTRODUCTION: Smear positive TB carries high morbidity and mortality. The TB treatment aims at sputum conversion by two months of antituberculous. Patients who delay sputum conversion remain potentially infectious, with risk of treatment failure, drug resistance, and mortality. Little is known about the magnitude of this problem in our setting. This study was designed to determine the prevalence and risk factors of delayed sputum conversion in northwestern rural part of Tanzania. METHODS: This was a retrospective cohort study involving smear positive TB patients at Sengerema DDH in 2015...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28693442/evaluation-of-the-relationship-between-marco-and-cd36-single-nucleotide-polymorphisms-and-susceptibility-to-pulmonary-tuberculosis-in-a-chinese-han-population
#14
Wenting Lao, Hui Kang, Guojiang Jin, Li Chen, Yang Chu, Jiao Sun, Bingqi Sun
BACKGROUND: Gene polymorphisms impact greatly on a person's susceptibility to pulmonary tuberculosis (PTB). Macrophage receptor with collagenous structure (MARCO) and CD36 are two scavenger receptors (SRs) that can recognize Mycobacterium tuberculosis (Mtb) and play a key role in tuberculosis infection. Gene polymorphisms of MARCO and CD36 may contribute to tuberculosis risk. METHODS: To investigate whether genetic polymorphisms of MARCO and CD36 are associated with susceptibility to PTB, genomic DNA samples from patients (n = 202) and healthy controls (n = 216) were collected and analyzed by polymerase chain reaction with high-resolution melting analysis...
July 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28692301/high-dose-vitamin-d3-during-tuberculosis-treatment-in-mongolia-a-randomised-controlled-trial
#15
Davaasambuu Ganmaa, Baatar Munkhzul, Wafaie Fawzi, Donna Spiegelman, Walter C Willett, Purev Bayasgalan, Erkhembayar Baasansuren, Burneebaatar Buyankhishig, Sereeter Oyun-Erdene, David A Jolliffe, Theodoros Xenakis, Sabri Bromage, Barry R Bloom, Adrian R Martineau
RATIONALE: Existing trials of adjunctive vitamin D in the treatment of pulmonary tuberculosis (PTB) are variously limited by small sample sizes, inadequate dosing regimens and high baseline vitamin D status among participants. Comprehensive analyses of the effects of genetic variation in the vitamin D pathway on response to vitamin D supplementation are lacking. OBJECTIVES: To determine the effect of high-dose vitamin D3 on response to antimicrobial therapy for PTB and to evaluate the influence of single nucleotide polymorphisms (SNPs) in vitamin D pathway genes on response to adjunctive vitamin D3...
July 10, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28691322/bile-acid-levels-and-risk-of-adverse-perinatal-outcomes-in-intrahepatic-cholestasis-of-pregnancy-a-meta-analysis
#16
Donghua Cui, Yongxing Zhong, Lin Zhang, Hechun Du
AIM: We aimed to determine the association between maternal total bile acid (TBA) levels and the risks of adverse perinatal outcomes in pregnant women with intrahepatic cholestasis of pregnancy (ICP) based on a meta-analysis study. METHODS: We searched PubMed for articles published from 2000 to 2015 with a focus on ICP and restriction to the English language. The main perinatal outcomes were preterm birth (PTB), meconium-stained amniotic fluid (MSAF), asphyxia, or respiratory distress syndrome (RDS)...
July 10, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28687207/high-risk-of-preterm-birth-and-low-birth-weight-after-oocyte-donation-ivf-analysis-of-133-785-live-births
#17
Mohan Shashikant Kamath, Belavendra Antonisamy, Mariano Mascarenhas, Sesh Kamal Sunkara
A higher risk of pregnancy complications occurs after assisted reproductive techniques compared with spontaneously conceived pregnancies. This is attributed to the underlying infertility and assisted reproduction technique procedures involved during treatment. It is a matter of interest whether use of donor oocytes affects perinatal outcomes compared with pregnancies after autologous IVF. Anonymized data were obtained from the Human Fertilization and Embryology Authority. The analysis included 5929 oocyte donation and 127,856 autologous IVF live births...
June 22, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28672191/tear-glucose-detection-combining-microfluidic-thread-based-device-amperometric-biosensor-and-microflow-injection-analysis
#18
Deonir Agustini, Márcio F Bergamini, Luiz Humberto Marcolino-Junior
The tear glucose analysis is an important alternative for the indirect, simple and less invasive monitoring of blood glucose levels. However, the high cost and complex manufacturing process of tear glucose analyzers combined with the need to exchange the sensor after each analysis in the disposable tests prevent widespread application of the tear in glucose monitoring. Here, we present the integration of a biosensor made by the electropolymerization of poly(toluidine blue O) (PTB) and glucose oxidase (GOx) with an electroanalytical microfluidic device of easy assembly based on cotton threads, low cost materials and measurements by microflow injection analysis (µFIA) through passive pumping for performing tear glucose analyses in a simple, rapid and inexpensive way...
June 22, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28665803/methylation-differences-reveal-heterogeneity-in-preterm-pathophysiology-results-from-bipartite-network-analyses
#19
Suresh K Bhavnani, Bryant Dang, Varun Kilaru, Maria Caro, Shyam Visweswaran, George Saade, Alicia K Smith, Ramkumar Menon
BACKGROUND: Recent studies have shown that epigenetic differences can increase the risk of spontaneous preterm birth (PTB). However, little is known about heterogeneity underlying such epigenetic differences, which could lead to hypotheses for biological pathways in specific patient subgroups, and corresponding targeted interventions critical for precision medicine. Using bipartite network analysis of fetal DNA methylation data we demonstrate a novel method for classification of PTB. METHODS: The data consisted of DNA methylation across the genome (HumanMethylation450 BeadChip) in cord blood from 50 African-American subjects consisting of 22 cases of early spontaneous PTB (24-34 weeks of gestation) and 28 controls (>39 weeks of gestation)...
June 30, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28663016/activity-determination-of-68-ge-68-ga-by-means-of-4%C3%AF-%C3%AE-%C3%A4-%C3%AE-coincidence-counting
#20
Justyna Marganiec-Gałązka, Ole J Nähle, Karsten Kossert
Germanium-68 is an important radionuclide since it is used to generate its daughter (68)Ga which is frequently used for positron emission tomography (PET). In addition, (68)Ge/(68)Ga sources are often used as surrogates for short-lived PET isotopes when calibrating instruments. In this work, 4πβ(Č)-γ coincidence counting was used to determine the activity concentration of a (68)Ge/(68)Ga solution. The presented measurements were made by means of a new PTB-custom-built 4π(LS)β-γ coincidence counting system, where a liquid scintillation detector in the β channel can also be used as a Čerenkov counter, and a NaI(Tl) crystal detects annihilation radiation...
June 20, 2017: Applied Radiation and Isotopes
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