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https://www.readbyqxmd.com/read/28820993/changing-profiles-of-bound-water-content-and-distribution-in-the-activated-sludge-treatment-by-nacl-addition-and-ph-modification
#1
Dong-Qin He, Ying-Jie Zhang, Chuan-Shu He, Han-Qing Yu
Currently the dewatering of activated sludge from wastewater treatment plants is a problem not well solved. Extracellular polymeric substances (EPS), including loosely bound EPS (LB-EPS) and tightly bound EPS (TB-EPS), are highly hydrated biopolymers and play important roles in sludge dewatering. In the present work, two types of treatments, i.e., salt addition and pH modification, were proposed to evaluate the effects of bound water content and its distribution on the dewatering performance of activated sludge...
August 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28820989/permanganate-bisulfite-pm-bs-conditioning-horizontal-electro-dewatering-hed-of-activated-sludge-effect-of-reactive-mn-iii-species
#2
Xinxin Guo, Yili Wang, Dongsheng Wang
A novel activated sludge (AS) conditioning method through permanganate/bisulfate (PM/BS) process was proposed. The method involved a new conditioner of reactive Mn(III) intermediate. Moreover, a Mn(III) conditioning-horizontal electro-dewatering (Mn(III) C-HED) process was established to improve AS dewatering performance. Underlying mechanisms were unraveled by investigating changes in physicochemical characteristics, scanning electron microscope (SEM) morphology, and transformation of water and organic matters...
August 11, 2017: Water Research
https://www.readbyqxmd.com/read/28820943/the-active-site-flexibility-of-mycobacterium-tuberculosis-isocitrate-lyase-in-dimer-form
#3
Yie-Vern Lee, Sybing Choi, Habibah Wahab, Yee Siew Choong
Tuberculosis (TB) still remains as global threat due to the emerging of drug resistant strain. Instead of focus on drug target of active stage TB, we are highlighting the isocitrate lyase (ICL) at the dormant stage TB. ICL is one of the persistent factors for Mycobacterium tuberculosis (MTB) to survive during dormant phase. In addition, the absent of ICL in human has made ICL a potential drug target for TB therapy. However, the dynamics details of ICL which could give insights to the ICL-ligand interaction is yet to be solved...
August 18, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28820679/tuberculosis-related-diabetes-is-it-reversible-after-complete-treatment
#4
Huma Aftab, Dirk L Christensen, Atiqa Ambreen, Mohammad Jamil, Peter Garred, Jørgen H Petersen, Susanne D Nielsen, Ib C Bygbjerg
Individuals with newly diagnosed tuberculosis (TB) were screened for diabetes (DM) with fasting plasma glucose (FPG) in Pakistan. A significant decrease in FPG was observed when TB was treated. Of those with newly diagnosed DM, 46% and 62% no longer had hyperglycemia after 3 and 6 months, respectively. Individuals with known DM also showed a significant decrease in fasting plasma levels when treated for TB, but after 3 months none had normoglycemia, and after 6 months 9.2% were normoglycemic. Thus, TB-related DM may abate when the stress terminates, as is the case in gestational DM...
August 7, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#5
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819600/extensively-drug-resistant-tuberculosis-of-the-lumbar-spine-in-a-six-year-old-child-a-case-report
#6
Siddharth Sanjay Shah, Aakanksha Arvind Goregaonkar, Arvind Balkrishna Goregaonkar
INTRODUCTION: The emergence of extensively drug-resistant tuberculosis (XDR-TB) is a challenging paradigm shift faced by the TB control programs worldwide today. The treatment is further compounded with unique management difficulties faced in pediatric patients. Treatment of XDR-TB requires prolonged chemotherapy with second-line drugs which offer lesser potency and increased risk of drug-related side effects. We present a case of spinal XDR-TB in a child, managed with extended second-line antitubercular chemotherapy (ATT)...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28819499/multiple-jejunal-perforation-secondary-to-intestinal-tuberculosis-infection-a-case-report
#7
Anthony Lyonga Ngonge, Domin Sone Majunda Ekaney, Carlson-Babila Sama, Joffi Musonge-Effoe, Valery Sammah Effoe, Gerald Ekwen
Abdominal tuberculosis (TB) may affect any part of the gastrointestinal tract resulting in significant morbidity and mortality. There is an increase in the incidence of abdominal TB favored by the emergence of multi-drug resistant Mycobacterium tuberculosis and immunosuppression especially from HIV co-infection. Our case is that of a 31 year old HIV-positive woman, adherent to antiretroviral therapy, who presented with a 2 month history of progressive abdominal distention, drenching night sweat and fatigue, but without fever...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28819470/causes-of-death-and-factors-associated-with-early-mortality-of-hiv-infected-adults-admitted-to-korle-bu-teaching-hospital
#8
Adriana Saavedra, Nia Campinha-Bacote, Maurice Hajjar, Ernest Kenu, Fizza Syeda Gillani, Adjoa Obo-Akwa, Margaret Lartey, Awewura Kwara
INTRODUCTION: This study sought to identify common causes of death as well as the factors associated with the high inpatient mortality rate of HIV-infected patients at the Korle-Bu Teaching Hospital (KBTH). METHODS: The retrospective study reviewed the medical records of 547 HIV-infected adults aged 18 years or older admitted to the KBTH between the months of January 2012 and October 2013. Using standardized abstraction forms, clinical and demographic data of eligible patients was collected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28818767/recent-advances-of-pyrazole-containing-derivatives-as-anti-tubercular-agents
#9
Zhi Xu, Chuan Gao, Qing-Cheng Ren, Xu-Feng Song, Lian-Shun Feng, Zao-Sheng Lv
One-third of the world's population infected tuberculosis (TB), and more than 1 million deaths annually. The co-infection between the mainly pathogen Mycobacterium tuberculosis (MTB) and HIV, and the incidence of drug-resistant TB, multi-drug resistant TB, extensively drug-resistant TB as well as totally drug-resistant TB have further aggravated the mortality and spread of this disease. Thus, there is an urgent need to develop novel anti-TB agents against both drug-susceptible and drug-resistant TB. The wide spectrum of biological activities and successful utilization of pyrazole-containing drugs in clinic have inspired more and more attention towards this kind of heterocycles...
August 3, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28818102/field-evaluation-of-the-efficacy-of-mycobacterium-bovis-bcg-vaccine-against-tuberculosis-in-goats
#10
Enric Vidal, Claudia Arrieta-Villegas, Miriam Grasa, Irene Mercader, Mariano Domingo, Bernat Pérez de Val
BACKGROUND: Control of animal tuberculosis (TB) through vaccination has emerged as a long-term strategy to complement test and slaughter control strategy. A pilot trial under field conditions was conducted in a goat herd with high TB prevalence to assess the efficacy of the Mycobacterium bovis BCG vaccine. RESULTS: Twenty-three goat kids vaccinated with BCG and other 22 unvaccinated control kids were euthanized at 18 months post-vaccination. Gross pathological and histopathological examination of target tissues was performed for detection of tuberculous lesions and assessment of vaccine efficacy...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28818066/hepatoprotective-and-antioxidant-effects-of-single-clove-garlic-against-ccl4-induced-hepatic-damage-in-rabbits
#11
Khalid Mohammed Naji, Elham Shukri Al-Shaibani, Fatima A Alhadi, Safa'a Abdulrzaq Al-Soudi, Myrene R D'souza
BACKGROUND: The increase in demand and consumption of single clove garlic or 'Solo garlic' (Allium sativum) has resulted in an increase in research on its therapeutic properties. The present study aims to evaluate the antioxidant activities, oxidant-scavenging efficiency and preventive effects of SCG (single clove garlic) and MCG (multi clove garlic) on CCl4-induced acute hepatotoxicity in male rabbits. METHODS: For this purpose, rabbits were orally administered with 3 ml of CCl4 /kg of body weight, followed by 0...
August 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28817723/sequence-analysis-of-the-rifampicin-resistance-determining-region-rrdr-of-rpob-gene-in-multidrug-resistance-confirmed-and-newly-diagnosed-tuberculosis-patients-of-punjab-pakistan
#12
Salma Hameed, Kartyk Moganeradj, Nasir Mahmood, Timothy D McHugh, Muhammad Nawaz Chaudhry, Catherine Arnold
Molecular screening of new patients suspected for TB could help in the effective control of TB in Pakistan as it is a high TB burden country. It will be informative to understand the prevalence of multi drug resistance for a better drug regimen management in this geographical area. The Rifampicin resistance determining region (RRDR) sequencing was used to identify mutations associated with drug resistance in DNA extracts from 130 known multidrug resistant (MDR) cultured strains and compared with mutations observed in DNA extracts directly from 86 sputum samples from consecutive newly diagnosed cases in Lahore, Pakistan...
2017: PloS One
https://www.readbyqxmd.com/read/28817714/insights-into-secular-trends-of-respiratory-tuberculosis-the-20th-century-maltese-experience
#13
Lianne Tripp, Larry A Sawchuk
Over half a century ago, McKeown and colleagues proposed that economics was a major contributor to the decline of infectious diseases, including respiratory tuberculosis, during the 19th and 20th centuries. Since then, there is no consensus among researchers as to the factors responsible for the mortality decline. Using the case study of the islands of Malta and Gozo, we examine the relationship of economics, in particular, the cost of living (Fisher index) and its relationship to the secular trends of tuberculosis mortality...
2017: PloS One
https://www.readbyqxmd.com/read/28817682/experimental-study-of-tuberculosis-from-animal-models-to-complex-cell-systems-and-organoids
#14
REVIEW
Kaori L Fonseca, Pedro N S Rodrigues, I Anna S Olsson, Margarida Saraiva
Tuberculosis (TB) is a devastating disease to mankind that has killed more people than any other infectious disease. Despite many efforts and successes from the scientific and health communities, the prospect of TB elimination remains distant. On the one hand, sustainable public health programs with affordable and broad implementation of anti-TB measures are needed. On the other hand, achieving TB elimination requires critical advances in three areas: vaccination, diagnosis, and treatment. It is also well accepted that succeeding in advancing these areas requires a deeper knowledge of host-pathogen interactions during infection, and for that, better experimental models are needed...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28817675/deaths-during-tuberculosis-treatment-among-paediatric-patients-in-a-large-tertiary-hospital-in-nigeria
#15
Aishatu L Adamu, Muktar H Aliyu, Najiba Aliyu Galadanci, Baba Maiyaki Musa, Muktar A Gadanya, Auwalu U Gajida, Taiwo G Amole, Imam W Bello, Safiya Gambo, Ibrahim Abubakar
BACKGROUND: Despite availability of effective cure, tuberculosis (TB) remains a leading cause of death in children. In many high-burden countries, childhood TB is underdiagnosed and underreported, and care is often accessed too late, resulting in adverse treatment outcomes. In this study, we examined the time to death and its associated factors among a cohort of children that commenced TB treatment in a large treatment centre in northern Nigeria. METHODS: This is a retrospective cohort study of children that started TB treatment between 2010 and 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28817561/comparing-efficacies-of-moxifloxacin-levofloxacin-and-gatifloxacin-in-tuberculosis-granulomas-using-a-multi-scale-systems-pharmacology-approach
#16
Elsje Pienaar, Jansy Sarathy, Brendan Prideaux, Jillian Dietzold, Véronique Dartois, Denise E Kirschner, Jennifer J Linderman
Granulomas are complex lung lesions that are the hallmark of tuberculosis (TB). Understanding antibiotic dynamics within lung granulomas will be vital to improving and shortening the long course of TB treatment. Three fluoroquinolones (FQs) are commonly prescribed as part of multi-drug resistant TB therapy: moxifloxacin (MXF), levofloxacin (LVX) or gatifloxacin (GFX). To date, insufficient data are available to support selection of one FQ over another, or to show that these drugs are clinically equivalent. To predict the efficacy of MXF, LVX and GFX at a single granuloma level, we integrate computational modeling with experimental datasets into a single mechanistic framework, GranSim...
August 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28816405/synthesis-density-functional-theory-calculations-and-luminescence-of-lanthanide-complexes-with-2-6-bis-3-methoxybenzylidene-hydrazinocarbonyl-pyridine-schiff-base-ligand
#17
Ziyad A Taha, Taher S Ababneh, Ahmed K Hijazi, Qutaiba Abu-Salem, Abdulaziz M Ajlouni, Shroq Ebwany
A pyridine-diacylhydrazone Schiff base ligand, L = 2,6-bis[(3-methoxy benzylidene)hydrazinocarbonyl]pyridine was prepared and characterized by single crystal X-ray diffraction. Lanthanide complexes, Ln-L, {[LnL(NO3 )2 ]NO3 .xH2 O (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Er)} were prepared and characterized by elemental analysis, molar conductance, thermal analysis (TGA/DTGA), mass spectrometry (MS), Fourier transform infra-red (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy. Ln-L complexes are isostructural with four binding sites provided by two nitro groups along with four coordination sites for L...
August 17, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28816315/a-highly-selective-and-sensitive-fluorescent-nanosensor-for-dopamine-based-on-formate-bridged-tb-iii-complex-and-silver-nanoparticles
#18
Huihui Li, Jin Shen, Rongwei Cui, Chongmei Sun, Yanyan Zhao, Xia Wu, Na Li, Bo Tang
Highly selective determination of dopamine (DA) over other catecholamines is an urgent need for the precise diagnosis and therapy of DA related diseases. Herein, a new formate-bridged Tb(iii)-complex and silver nanoparticles (AgNPs) enhanced fluorescent nanosensor was constructed. HCOO(-) acted as a co-ligand of Tb(iii) and also as a linker between the Tb(iii) complex and AgNPs and more readily combined with the primary amine of DA than with epinephrine (EP). The formate-bridged action strengthened AgNPs-based surface enhanced fluorescence of the Tb(3+)-DA complex and improved the selectivity towards DA...
August 17, 2017: Analyst
https://www.readbyqxmd.com/read/28816308/ln-iii-complexes-ln-eu-gd-tb-dy-with-a-chiral-ligand-containing-1-10-phenanthroline-and-menthol-fragments-synthesis-structure-magnetic-properties-and-photoluminescence
#19
Stanislav V Larionov, Yuliya A Bryleva, Ludmila A Glinskaya, Victor F Plyusnin, Arkady S Kupryakov, Alexander M Agafontsev, Alexey V Tkachev, Artem S Bogomyakov, Dmitry A Piryazev, Ilya V Korolkov
A series of lanthanide(iii) complexes based on the new chiral ligand L, which contains 1,10-phenanthroline and (-)-menthol fragments, namely [LnL2(NO3)3] (Ln = Eu (1), Gd (2), Tb (3), Dy (4)), have been synthesized and structurally characterized. Complexes 1-4 are isostructural and crystallize in the non-centrosymmetric space group P41212. The mononuclear complexes comprise a 10-coordinate Ln(3+) ion with two bidentate N,N-donor ligands (L) and three bidentate chelating nitrate groups. The magnetic properties of complexes 1-4 are determined mainly by the Ln(3+) ions...
August 17, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28815873/critical-interpretive-synthesis-of-barriers-and-facilitators-to-tb-treatment-in-immigrant-populations
#20
REVIEW
Stephanie Lin, G J Melendez-Torres
OBJECTIVE: To systematically review qualitative literature of TB treatment experiences on immigrant populations of low-prevalence countries. METHODS: Critical Interpretive Synthesis (CIS). On October 23, 2013, MEDLINE, CINAHL, Embase, PsychINFO and ProQuest were systematically searched. Grey literature and reference lists were hand-searched. Initial papers included were restricted to studies of immigrant patient perspectives; after a model was developed, a second set of papers was included to test the emerging theory...
August 17, 2017: Tropical Medicine & International Health: TM & IH
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