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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/28820500/odorous-compounds-from-poultry-manure-induce-dna-damage-nuclear-changes-and-decrease-cell-membrane-integrity-in-chicken-liver-hepatocellular-carcinoma-cells
#2
Adriana Nowak, Tadeusz Bakuła, Katarzyna Matusiak, Remigiusz Gałęcki, Sebastian Borowski, Beata Gutarowska
Animal breeding and management of organic wastes pose a serious problem to the health of livestock and workers, as well as the nearby residents. The aim of the present study was to determine the mechanisms of toxicity of selected common odorous compounds from poultry manure, including ammonia, dimethylamine (DMA), trimethylamine (TMA), butyric acid, phenol, and indole. We measured their genotoxic and cytotoxic activity in the model chicken cell line (LMH), in vitro, by comet assay and lactate dehydrogenase assay, respectively...
August 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28819849/rarecyte%C3%A2-ctc-analysis-step-1-accucyte%C3%A2-sample-preparation-for-the-comprehensive-recovery-of-nucleated-cells-from-whole-blood
#3
Arturo B Ramirez, Lance U'Ren, Daniel E Campton, David Stewart, Joshua J Nordberg, Jackie L Stilwell, Eric P Kaldjian
The RareCyte platform addresses important technology limitations of current circulating tumor cell (CTC) collection methods, and expands CTC interrogation to include advanced phenotypic characterization and single-cell molecular analysis. In this respect, it represents the "next generation" of cell-based liquid biopsy technologies. In order to identify and analyze CTCs, RareCyte has developed an integrated sample preparation, imaging and individual cell retrieval process. The first step in the process, AccuCyte(®), allows the separation, collection, and transfer to a slide the nucleated cell fraction of the blood that contains CTCs...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28818796/dispersion-induced-ozone-pretreatment-of-waste-activated-biosolids-arriving-biomethanation-modelling-parameters-energetic-and-cost-assessment
#4
R Yukesh Kannah, S Kavitha, J Rajesh Banu, Obulisamy Parthiba Karthikeyan, P Sivashanmugham
In this study, the phase separated effect of dispersion induced ozone pretreatment (DOP) was investigated. Solid reduction, biomass lysis and biomethane production were used as essential parameters to assess the potential of DOP over ozone pretreatment (OP). A higher suspended solid reduction of about 25.2% was achieved in DOP than OP 18%. The ozone dosage of 0.014gO3/g SS supported a maximal biomass lysis of about 32.8% when the biosolids were subjected to prior dispersion at 30s and 3000rpm. However, the same ozone dosage without phase separation achieved 9...
August 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28818219/contemporary-outcomes-after-venography-guided-treatment-of-patients-with-may-thurner-syndrome
#5
Johnathon C Rollo, Steven M Farley, Adam Z Oskowitz, Karen Woo, Brian G DeRubertis
OBJECTIVE: Patients with May-Thurner syndrome (MTS) present with a spectrum of findings ranging from mild left leg edema to extensive iliofemoral deep venous thrombosis (DVT). Whereas asymptomatic left common iliac vein (LCIV) compression can be seen in a high proportion of normal individuals on axial imaging, the percentage of these persons with symptomatic compression is small, and debate exists about the optimal clinical and diagnostic criteria to treat these lesions in patients with symptomatic venous disease...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818172/clinical-profile-and-short-term-outcome-of-pediatric-hyperleukocytic-acute-leukemia-from-a-developing-country
#6
Syed Ali Shazif Baqari, Anwarul Haque, Muhammad Shamvil Ashraf, Muhammad Matloob Alam, Zehra Fadoo
This study was conducted to determine the frequency, clinical profile, and short-term outcome of children with hyperleukocytosis at two pediatric oncology centers in Karachi. Of a total 1,045 patients, 13.97% (n=146) patients had hyperleukocytosis. Majority (61.7%, n=90) were under 10 years of age and 76% (n=146) were male. The symptom duration before diagnosis was more than 30 days in 49.3% (n=72). The median WBC count was 181 x109/L(IQR=130.45298.3) and extreme hyperleukocytosis (>200 x109/L) was observed in 44...
July 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28816700/recovery-of-tinnitus-and-sensorineural-hearing-loss-due-to-lysis-of-arachnoid-adhesions-in-the-posterior-cranial-fossa-is-there-a-novel-etiology-in-neurotological-disorders
#7
Raşit Cevizci, Alper Dilci, Ahmet Mahmut Tekin, Yıldırım Bayazıt
We reported the recovery of sensorineural hearing loss and tinnitus in a 22-year-old man after complete removal of intracranial portion of jugular foramen schwannoma via the retrosigmoid approach. The aim of this case report was to present the excision of a large jugular foramen schwannoma via the retrosigmoid approach and to describe the improvement of sensorineural hearing loss related to arachnoid inflammations due to chronic arachnoiditis after suboccipital craniectomy. The recovery of sensorineural hearing loss and tinnitus after release of arachnoid adhesions may indicate the clinical significance of these adhesions or arachnoiditis, which should also be considered and investigated in the etiology of other neurotological diseases...
August 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28815907/t7-rna-polymerase-driven-inducible-cell-lysis-for-dna-transfer-from-escherichia-coli-to-bacillus-subtilis
#8
Mario Juhas, James W Ajioka
The majority of the good DNA editing techniques have been developed in Escherichia coli; however, Bacillus subtilis is better host for a plethora of synthetic biology and biotechnology applications. Reliable and efficient systems for the transfer of synthetic DNA between E. coli and B. subtilis are therefore of the highest importance. Using synthetic biology approaches, such as streamlined lambda Red recombineering and Gibson Isothermal Assembly, we integrated genetic circuits pT7L123, Repr-ts-1 and pLT7pol encoding the lysis genes of bacteriophages MS2, ΦX174 and lambda, the thermosensitive repressor and the T7 RNA polymerase into the E...
August 16, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28815212/variable-virulence-of-biotype-3-vibrio-vulnificus-due-to-martx-toxin-effector-domain-composition
#9
Byoung Sik Kim, Hannah E Gavin, Karla J F Satchell
Vibrio vulnificus is an environmental organism that causes septic human infections characterized by high morbidity and mortality. The annual incidence and global distribution of this pathogen are increasing as ocean waters warm. Clinical strains exhibit variations in the primary virulence toxin, suggesting a potential for the emergence of new strains with altered virulence properties. A clonal outbreak of tilapia-associated wound infections in Israel serves as a natural experiment for the sudden emergence of a new V...
July 2017: MSphere
https://www.readbyqxmd.com/read/28813774/pulmonary-embolism-caused-by-popliteal-vein-aneurysm-a-case-report
#10
Kevin Marquez, Kalyan Chakravarthy Potu, Chad Laurich, Randall Lamfers
In this case report, we describe an unusual episode of bilateral submassive pulmonary embolism (PE) caused by a popliteal vein aneurysm (PVA). The development of PE stems from many risk factors including obesity (BMI³ 30 kg/m2), hypertension, cigarette smoking (greater than 25 cigarettes per day), increasing age, surgery, immobility, malignancy, and inherited thrombophilia. A PVA is a rare but significant cause of PE. A 28-year-old male presented to the emergency department with progressive shortness of breath...
March 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28808602/high-lumbar-noninstrumented-fusion-rates-using-lamina-autograft-and-nanoss-bone-marrow-aspirate
#11
Nancy E Epstein
BACKGROUND: Patients with marked osteoporosis and/or obesity/morbid obesity and severe multilevel lumbar stenosis and other pathology often undergo multilevel laminectomies with non instrumented posterolateral fusions (PLF). The other pathology may include combinations of degenerative spondylolisthesis/lysis, foraminal/far lateral discs, and/or synovial cysts requiring more extensive facet resections. Presently, spine surgeons often use bone graft expanders to supplement the lamina autograft harvested in the course of laminectomy/decompressions for the PLF mass...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28808131/intercellular-communication-via-the-comx-inducing-peptide-xip-of-streptococcus-mutans
#12
Justin Kaspar, Simon A M Underhill, Robert C Shields, Adrian Reyes, Suzanne Rosenzweig, Stephen J Hagen, Robert A Burne
Gram-positive bacteria utilize exported peptides to coordinate genetic and physiological processes required for biofilm formation, stress responses and ecological competitiveness. One example is activation of natural genetic competence by ComR and the comX-inducing peptide (XIP) in Streptococcus mutans Although the competence pathway can be activated by addition of synthetic XIP in defined medium, the hypothesis that XIP is able to function as an intercellular signal molecule has not been rigorously tested...
August 14, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28805599/nationwide-trends-and-in-hospital-complications-of-trachelectomy-for-surgically-resectable-cervical-cancer-in-taiwanese-women-a%C3%A2-population-based-study-1998-2013
#13
Jerry Cheng-Yen Lai, Hung-Hui Chen, Kuei-Hui Chu, Chia-Sui Weng, Yiing-Jenq Chou, Nicole Huang, Yu-Ju Chien, Kung-Liahng Wang
OBJECTIVE: To describe the nationwide trends in the utilization of trachelectomy among Taiwanese women with surgically resectable cervical cancer over the past decade, and to compare associated demographic characteristics, in-hospital complications and related outcomes using a population-based dataset from 1998 to 2013. MATERIALS AND METHODS: We conducted a population-based, cohort study using inpatient admission claims data of Taiwan's National Health Insurance program...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28805012/increasing-the-accuracy-and-precision-of-relative-telomere-length-estimates-by-rt-qpcr
#14
Justin R Eastwood, Ellis Mulder, Simon Verhulst, Anne Peters
Since attrition of telomeres, DNA caps that protect chromosome integrity, is accelerated by various forms of stress, telomere length (TL) has been proposed as an indicator of lifetime accumulated stress. In ecological studies it has been used to provide insights into aging, life-history trade-offs, the costs of reproduction and disease. qPCR is a high throughput and cost effective tool to measure relative TL (rTL) that can be applied to newly-collected and archived ecological samples. However, qPCR is susceptible to error both from the method itself and pre-analytical steps...
August 14, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28802274/horizontal-dissemination-of-antimicrobial-resistance-determinants-in-multiple-salmonella-serotypes-following-isolation-from-the-environment-of-commercial-swine-operations-after-manure-application
#15
Suchawan Pornsukarom, Siddhartha Thakur
The aim of this study was to characterize the plasmids carrying antimicrobial resistance (AMR) determinants in multiple Salmonella serotypes recovered from the commercial swine farms environment after manure application on land. Manure and soil samples were collected on day0 before and after manure application on six farms in North Carolina and sequential soil samples were recollected on day7, 14, and 21 from the same plots. All environmental samples were processed for Salmonella and their plasmid contents were further characterized...
August 11, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28801743/investigation-of-an-optimal-cell-lysis-method-for-the-study-of-the-zinc-metalloproteome-of-histoplasma-capsulatum
#16
Anna M Donnell, Stephanie Lewis, Sami Abraham, Kavitha Subramanian, Julio Landero Figueroa, George S Deepe, Anne P Vonderheide
This work sought to assess optimal extraction conditions in the study of the metalloproteome of the dimorphic fungus Histoplasma capsulatum. One of the body's responses to H. capsulatum infection is sequestration of zinc within host macrophage (MØ), as reported by Vignesh et al. (Immunity 39:697-710, 2013) and Vignesh et al. (PLOS Pathog 9:E1003815, 2013). Thus, metalloproteins containing zinc were of greatest interest as it plays a critical role in survival of the fungus. One challenge in metalloproteomics is the preservation of the native structure of proteins to retain non-covalently bound metals...
August 12, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28801691/a-new-data-processing-routine-facilitating-the-identification-of-surface-adhered-proteins-from-bacterial-conditioning-films-via-qcm-d-maldi-tof-ms
#17
Siegfried Hohmann, Anke Neidig, Boris Kühl, Frank Kirschhöfer, Jörg Overhage, Gerald Brenner-Weiß
Conditioning films are an important factor in the initiation and development of microbial biofilms, which are the leading cause of chronic infections associated with medical devices. Here, we analyzed the protein content of conditioning films formed after exposure to supernatants of cultures of the human pathogen Pseudomonas aeruginosa PAO1. Adhesion of substances from the supernatant was monitored using quartz crystal microbalance with dissipation monitoring (QCM-D) sensor chips modified with the commonly used implant material titanium dioxide (TiO2)...
August 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28801679/improvement-of-a-rapid-diagnostic-application-of-monoclonal-antibodies-against-avian-influenza-h7-subtype-virus-using-europium-nanoparticles
#18
Seon-Ju Yeo, Duong Tuan Bao, Ga-Eun Seo, Cuc Thi Bui, Do Thi Hoang Kim, Nguyen Thi Viet Anh, Trinh Thi Thuy Tien, Nguyen Thi Phuong Linh, Hae-Jin Sohn, Chom-Kyu Chong, Ho-Joon Shin, Hyun Park
The development of a sensitive and rapid diagnostic test is needed for early detection of avian influenza (AI) H7 subtype. In this study, novel monoclonal antibodies (mAbs) against influenza A H7N9 recombinant hemagglutinin (rHA)1 were developed and applied to a Europium nanoparticle-based rapid fluorescent immunochromatographic strip test (FICT) to improve the sensitivity of the rapid diagnostic system. Two antibodies (2F4 and 6D7) exhibited H7 subtype specificity in a dot-FICT assay by optimization of the conjugate and the pH of the lysis buffer...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801171/microorganisms-based-methods-for-harmful-algal-blooms-control-a-review
#19
REVIEW
Rui Sun, Pengfei Sun, Jianhong Zhang, Sofia Esquivel-Elizondo, Yonghong Wu
Harmful algal blooms (HABs) are a worldwide problem with numerous negative effects on water systems, which have prompted researchers to study applicable measures to inhibit and control them. This review summarized the current microorganisms-based methods or technologies aimed at controlling HABs. Based on their characteristics, these methods can be divided into two categories: methods based on single-species microorganisms and methods based on microbial aggregates, and four types: methods for rapid decrease of algal cells density (e...
August 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28801136/outcomes-of-pharmacomechanical-catheter-directed-thrombolysis-for-acute-and-subacute-inferior-vena-cava-thrombosis-a-retrospective-evaluation-in-a-single-institution
#20
K Ye, J Qin, M Yin, X Liu, X Lu
OBJECTIVE/BACKGROUND: The objective was to assess the mid-term results of pharmacomechanical catheter-directed thrombolysis (PCDT) for symptomatic acute and subacute inferior vena cava (IVC) thrombosis; the risk factors of early thrombosis recurrence and iliocaval patency were also evaluated. METHODS: From January 2010 to December 2015, 54 patients (33 men; mean age 47.1 years) with symptomatic acute and subacute IVC thrombosis were treated with PCDT. Primary technical success (clot lysis ≥ 50% after PCDT), stent-assisted technical success (residual stenosis < 30% after stenting), clinical success (freedom from thrombosis recurrence within 30 days), complications, frequency of post-thrombotic syndrome (PTS; Villalta score ≥ 5), and iliocaval patency were recorded at follow-up evaluation...
August 8, 2017: European Journal of Vascular and Endovascular Surgery
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