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https://www.readbyqxmd.com/read/29779778/identification-of-tb-e12-as-a-novel-ftsz-inhibitor-with-anti-tuberculosis-activity
#1
Yuan Lin, Hongjuan Zhang, Ningyu Zhu, Xia Wang, Yanxing Han, Minghua Chen, Jiandong Jiang, Shuyi Si
The global pandemic of multidrug-resistant (MDR) Mycobacterium tuberculosis (TB) drives for more effective anti-TB drugs with new drug target. Filamentous temperature sensitive protein Z (FtsZ), a GTP dependent prokaryotic cell division protein, forms a dynamic Z-ring in the center of the cell. Differences between bacterial FtsZ and eukaryotic tubulin make FtsZ a highly attractive drug target. In this study, we used phenotype screening of M. smegmatis and model screening targeting M. tuberculosis FtsZ (Mtb-FtsZ) to identify a hit compound TB-E12...
May 2018: Tuberculosis
https://www.readbyqxmd.com/read/29779628/fluoride-containing-bioactive-glass-composite-for-orthodontic-adhesives-apatite-formation-properties
#2
N A Al-Eesa, A Johal, R G Hill, F S L Wong
OBJECTIVES: Dental materials that can form apatite offer the potential to not only prevent demineralisation but enhance remineralisation of the enamel. The objective of this study was to investigate the ability of a novel BAG-resin adhesive to form apatite in 3 immersion media. METHODS: A novel fluoride containing BAG-resin adhesive described previously, with 80% by weight filler load, was used to fabricate 90 disks. Each disk was immersed in 10ml of either tris buffer (TB), or artificial saliva at pH=7 (AS7) or pH=4 (AS4)...
May 17, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29773096/acceptance-of-chemo-prophylaxis-for-latent-tuberculosis-infection-among-high-school-college-student-contacts-of-tuberculosis-patients-in-shanghai-china
#3
Yang Li, Yi Hui Zheng, Li Ping Lu, Mei Xia Yang, Chang Ming Zhou, Zheng An Yuan, Yi Hu, Biao Xu
Student contacts of tuberculosis (TB) cases are susceptible to latent tuberculosis infection (LTBI), and chemo-prophylaxis can reduce the risk of active TB among them. This study aimed to assess the acceptance of chemo-prophylaxis for LTBI among students, and their concerns regarding TB and its preventive treatment. A total of 560 students contacts were included in the investigation. The extent of contact was categorized from high to low (4 levels) with 12.9% of the students being close contacts. About 87.0% of the students were willing to receive chemo-prophylaxis if diagnosed with, LTBI, whereas 73 students declined...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29770053/tuberculosis-drug-resistance-in-canada-2006-2016
#4
V Gallant, J Vachon, W Siu
Background: Drug-resistant strains of tuberculosis (TB) pose a serious threat to TB prevention and control efforts. The Canadian Tuberculosis Laboratory Surveillance System (CTBLSS) was created in 1998 to monitor emerging trends and patterns in TB drug resistance in Canada. Objective: To present a descriptive overview of TB drug resistance data collected through the CTBLSS for the years 2006 to 2016 in Canada, with a focus on 2016. Methods: The CTBLSS is an isolate-based surveillance system designed to collect data on TB drug resistance across Canada...
November 2, 2017: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29769775/primary-gingival-tuberculosis-in-pregnancy-a-rare-combination
#5
Shweta Sharma, Abdul Ahad, Narinder Dev Gupta, Vivek Kumar Sharma
Tuberculosis (TB), a common chronic-specific granulomatous disease, has become rare in the developed countries. However, it is still a common cause of morbidity and mortality in India. Although it commonly involves the lungs, its presentation in the oral cavity is quite uncommon. The very rare incidence of primary gingival TB, particularly in the absence of active pulmonary involvement often leads to misdiagnosis. Clinical features of oral lesions may include ulceration, nodules, granulomas, and fissures. TB in pregnant women is a major cause of obstetric complications and increased risk of maternal and child mortality...
March 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29769160/cross-border-outbreak-of-extensively-drug-resistant-tuberculosis-linked-to-a-university-in-romania
#6
O Popovici, Ph Monk, D Chemtob, D Chiotan, P J Freidlin, R Groenheit, M Haanperä, D Homorodean, M Mansjö, E Robinson, E Rorman, G Smith, H Soini, M J Van Der Werf
Extensively drug-resistant (XDR) tuberculosis (TB) poses a threat to public health due to its complicated, expensive and often unsuccessful treatment. A cluster of three XDR TB cases was detected among foreign medical students of a Romanian university. The contact investigations included tuberculin skin testing or interferon gamma release assay, chest X-ray, sputum smear microscopy, culture, drug susceptibility testing, genotyping and whole-genome sequencing (WGS), and were addressed to students, personnel of the university, family members or other close contacts of the cases...
May 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29767733/risk-and-timing-of-tuberculosis-among-close-contacts-of-persons-with-infectious-tuberculosis
#7
Mary R Reichler, Awal Khan, Timothy R Sterling, Hui Zhao, Joyce Moran, James McAuley, Patricia Bessler, Bonita Mangura
Background: The risk and timing of tuberculosis (TB) among recently exposed close contacts of patients with infectious TB is not well established. Methods: We prospectively enrolled culture-confirmed pulmonary TB patients ≥15 years of age and their close contacts at nine health departments in the United States and Canada. Close contacts were screened and cross-matched with TB registries to identify those who developed TB. Results: TB was diagnosed in 158 (4%) of 4490 contacts to 718 index TB patients...
May 15, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29765355/tuberculosis-the-disrupted-immune-endocrine-response-and-the-potential-thymic-repercussion-as-a-contributing-factor-to-disease-physiopathology
#8
REVIEW
Luciano D'Attilio, Natalia Santucci, Bettina Bongiovanni, María L Bay, Oscar Bottasso
Upon the pathogen encounter, the host seeks to ensure an adequate inflammatory reaction to combat infection but at the same time tries to prevent collateral damage, through several regulatory mechanisms, like an endocrine response involving the production of adrenal steroid hormones. Our studies show that active tuberculosis (TB) patients present an immune-endocrine imbalance characterized by an impaired cellular immunity together with increased plasma levels of cortisol, pro-inflammatory cytokines, and decreased amounts of dehydroepiandrosterone...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29762657/prospects-for-tuberculosis-elimination-in-the-united-states-results-of-a-transmission-dynamic-model
#9
Nicolas A Menzies, Ted Cohen, Andrew N Hill, Reza Yaesoubi, Kara Galer, Emory Wolf, Suzanne M Marks, Joshua A Salomon
We estimated long-term tuberculosis (TB) trends in the US population and assessed prospects for TB elimination. We used a detailed simulation model allowing for changes in TB transmission, immigration, and other TB risk determinants. We evaluated 5 hypothetical scenarios from 2017 to 2100: 1) maintain current TB prevention and treatment activities (base-case), 2) provision of latent TB infection testing and treatment for new legal immigrants, 3) increased uptake of latent TB infection screening and treatment among high-risk populations, including a 3-month isoniazid-rifapentine regimen, 4) improved TB case detection, 5) improved TB treatment quality...
May 14, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29761768/treatment-delay-among-pulmonary-tuberculosis-patients-within-the-pakistan-national-tuberculosis-control-program
#10
Shahab E Saqib, Mokbul Morshed Ahmad, Carmen Amezcua-Prieto, Martínez-Ruiz Virginia
Delay in diagnosis and treatment worsens the disease and clinical outcomes, which further enhances transmission of tuberculosis (TB) in the community. Therefore, this study aims to assess treatment delay and its associated factors among pulmonary TB patients in Pakistan. A cross-sectional study was conducted among 269 pulmonary TB patients in the district. Binary and multivariate logistic regressions were used to explore the factors associated with delay in TB treatment. Results reveal that most patients were from low socioeconomic backgrounds...
May 14, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29761487/the-phytoestrogen-genistein-prevents-trabecular-bone-loss-and-affects-thyroid-follicular-cells-in-a-male-rat-model-of-osteoporosis
#11
Branko Filipović, Branka Šošić-Jurjević, Vladimir Ajdžanović, Jasmina Živanović, Milica Manojlović-Stojanoski, Nataša Nestorović, Nataša Ristić, Svetlana Trifunović, Verica Milošević
As a major phytoestrogen of soy, genistein effectively prevents bone loss in both humans and rat models of osteoporosis. However, although the bone-sparing effects of genistein are achieved directly through estrogen receptors, its mode of action on bone by modulation of other endocrine functions is not entirely clear. Thus, thyroid hormones and calcitonin (CT) have an essential influence on bone metabolism. Besides its action on bones, in this study we examined the effect of genistein on the activity of two different endocrine cell populations, thyroid follicular and C-cells...
May 14, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29758278/prevalence-of-and-risk-factors-associated-with-latent-tuberculosis-in-singapore-a-cross-sectional-survey
#12
Peiling Yap, Kristin Hui Xian Tan, Wei Yen Lim, Timothy Barkham, Linda Wei Lin Tan, Mark Chen I-Cheng, Yee Tang Wang, Cynthia Bin Eng Chee
OBJECTIVES: We performed the first LTBI cross-sectional survey in Singapore, utilizing the QuantiFERON Gold In-tube (QFT-GIT) assay to collect data on the prevalence of LTBI and identify potential risk factors associated with it. METHODS: Nation-wide household addresses were randomly selected for enumeration, where Singaporeans or Permanent Residents (PRs), aged 18-79 years, were identified. One eligible member per household was selected using the Kish grid. Each participant answered a questionnaire, assessing medical history (including TB), socio-economic factors and lifestyle and provided a blood specimen for the QFT-GIT assay...
May 11, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29752996/unmasking-leading-to-a-health-care-worker-mycobacterium-tuberculosis-transmission
#13
Kerry L Holden, Craig W Bradley, Evonne T Curran, Christopher Pollard, Grace Smith, Elisabeth Holden, Patricia Glynn, Mark Garvey
BACKGROUND: Mycobacterium tuberculosis is a major health burden worldwide. The disease can present as an individual case, community outbreak or more rarely a nosocomial outbreak. Even in countries with a low prevalence such as the UK, tuberculosis (TB) presents a risk to healthcare workers (HCWs). AIM: To report an outbreak which manifested 12 months after a patient with pulmonary tuberculosis was admitted to Queen Elizabeth Hospital Birmingham (QEHB). METHODS: We present the epidemiological and outbreak investigations; the role of whole genome sequencing (WGS) in identifying the outbreak and control measures to prevent further outbreaks...
May 9, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29749875/missed-opportunities-for-tuberculosis-prevention-among-patients-accessing-a-uk-hiv-service
#14
Hannah M Rickman, Robert F Miller, Stephen Morris-Jones, Lusha Kellgren, Simon G Edwards, Alison D Grant
United Kingdom guidelines recommend screening for and treatment of latent tuberculosis infection (LTBI) in HIV-positive patients at high risk of active tuberculosis (TB) disease, but implementation is suboptimal. We investigated potential missed opportunities to identify and treat LTBI among HIV-positive patients accessing a large HIV outpatient service in London. Case records of all adult patients attending our service for HIV care diagnosed with active TB between 2011 and 2015 were reviewed to determine whether they met criteria for LTBI screening and whether screening was undertaken...
January 1, 2018: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29746953/reversion-of-quantiferon-tb-gold-in-tube-test-in-individuals-with-and-without-prophylactic-treatment-for-latent-tuberculosis-infection-a-systematic-review-and-meta-analysis
#15
Haoran Zhang, Henan Xin, Xiangwei Li, Hengjing Li, Mufei Li, Boxuan Feng, Lei Gao
OBJECTIVES: Reversion of tuberculosis (TB) infection testing has been suggested to be associated with prophylactic treatment efficacy. However, evidences based on randomized controlled study were sparse. METHODS: Studies on serial QuantiFERON-TB Gold In-Tube (QFT) test, among individuals with and without prophylactic treatment were identified in the databases of PubMed, MEDLINE and EMBASE up to 28 February 2018. The reversion rates were quantitatively summarized by means of meta-analysis using the random-effect model...
May 7, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29745033/role-of-teriparatide-in-glucocorticoid-induced-osteoporosis-through-regulating-cellular-reactive-oxygen-species
#16
Tao Wang, Chao Han, Peng Tian, Peng-Fei Li, Xin-Long Ma
OBJECTIVE: To determine the signaling pathways mediated by teriparatide in MLO-Y4 cell lines based on the evaluation of reactive oxygen species (ROS) through AKT pathways, which regulate apoptosis of bone cells. METHODS: We performed the DCFH-DA assay to investigate the role of ROS in MLO-Y4 cells caused by dexamethasone (Dex). Four groups were included: Dex group, Dex+NAC, Dex+ teriparatide group and control group (without any dispose). Real-time reverse transcriptase polymerase chain reaction was used to test the SOD2 and Cat mRNA expression...
May 10, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29744042/prevalence-and-patterns-of-drug-resistance-among-pulmonary-tuberculosis-patients-in-hangzhou-china
#17
Qingchun Li, Gang Zhao, Limin Wu, Min Lu, Wei Liu, Yifei Wu, Le Wang, Ke Wang, Han-Zhu Qian, Li Xie
Background: To evaluate prevalence and patterns of drug resistance among pulmonary tuberculosis (TB) patients in Hangzhou City, China. Methods: Sputum samples of smear positive TB patients enrolled in 2011 and 2015 were collected and tested for drug susceptibility, and demographic and medical record data were extracted from the electronic database of China Information System for Disease Control and Prevention. Chi-square test was used to compare drug resistance prevalence between new and treated patients and between male and female patients, and Chi-square test for trend was used to compare the prevalence over calendar years 2011 and 2015...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29732982/prevalence-of-tuberculosis-in-a-prison-in-tehran-by-active-case-finding
#18
Behnam Farhoudi, SeyedAhmad SeyedAlinaghi, Mostafa Hosseini, Fatemeh Golsoorat Pahlaviani, Mona Mohammadi Firouzeh, Mohammad Shahbazi, Minoo Mohraz
BACKGROUND: Tuberculosis [TB] is one of the most contagious infection diseases among prisoners. TB Screening plays an important role in prevention among prisoners and their visitors, also better caring of the patients. Active case findings is one of screening methods that is relatively an easy one to find TB suspected prisoners. METHODS: This study was conducted among male prisoners in Great Prison of Tehran to screen and diagnose TB patients from October 2013 to May 2014...
May 7, 2018: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/29732235/development-of-new-preventive-and-therapeutic-vaccines-for-tuberculosis
#19
REVIEW
Bo-Eun Kwon, Jae-Hee Ahn, Seunghwan Min, Hyeongseop Kim, Jungheun Seo, Sang-Gu Yeo, Hyun-Jeong Ko
Tuberculosis (TB) is a contagious disease that has been responsible for the death of one billion people in the last 200 years. Until now, the only vaccine approved for the prevention of TB is Bacillus Calmette-Guérin (BCG), which is prepared by attenuating Mycobacterium bovis . However, one of the limitations of BCG is that its preventive effect against pulmonary TB varies from person to person. Therefore, there arises a need for a new TB vaccine to replace or supplement BCG. In this review, we have summarized the findings of current clinical trials on preventive and therapeutic TB vaccine candidates...
April 2018: Immune Network
https://www.readbyqxmd.com/read/29728480/safely-rehabilitating-badgers-to-prevent-bovine-tb-spread
#20
(no author information available yet)
When a badger is presented to a rescue centre, measures must be taken to ensure not only the safety of the wild animal, but also to prevent the risk of bovine TB spreading. Georgina Mills reports.
May 5, 2018: Veterinary Record
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