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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
#1
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/28795166/an-efficient-strategy-using-k-mers-to-analyse-16s-rrna-sequences
#2
Marcel Martínez-Porchas, Francisco Vargas-Albores
The use of k-mers has been a successful strategy for improving metagenomics studies, including taxonomic classifications, or de novo assemblies, and can be used to obtain sequences of interest from the available databases. The aim of this manuscript was to propose a simple but efficient strategy to generate k-mers and to use them to obtain and analyse in silico 16S rRNA sequence fragments. A total of 513,309 bacterial sequences contained in the SILVA database were considered for the study, and homemade PHP scripts were used to search for specific nucleotide chains, recover fragments of bacterial sequences, make calculations and organize information...
July 2017: Heliyon
https://www.readbyqxmd.com/read/28791579/visualizing-the-microscopic-world
#3
Nuno M F S A Cerqueira, Pedro A Fernandes, Maria João Ramos
Visualization can be a motivating way of teaching students about the microscopic world. This can become even more exciting if the information is based on accurate computational results rather than on crude approximations that eventually might create unreal alternative perceptions. Here, we report on a VMD plug-in, named vmdMagazine, which can turn computational simulations into stunning high-impact video presentations, suitable for classes/lectures and even conferences. The software will help students/audience to understand atoms and molecules better and learn to like them...
August 9, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/28790886/molecular-bases-of-brain-preconditioning
#4
Oleg G Deryagin, Svetlana A Gavrilova, Khalil L Gainutdinov, Anna V Golubeva, Vyatcheslav V Andrianov, Guzel G Yafarova, Sergey V Buravkov, Vladimir B Koshelev
Preconditioning of the brain induces tolerance to the damaging effects of ischemia and prevents cell death in ischemic penumbra. The development of this phenomenon is mediated by mitochondrial adenosine triphosphate-sensitive potassium ([Formula: see text]) channels and nitric oxide signaling (NO). The aim of this study was to investigate the dynamics of molecular changes in mitochondria after ischemic preconditioning (IP) and the effect of pharmacological preconditioning (PhP) with the [Formula: see text]-channels opener diazoxide on NO levels after ischemic stroke in rats...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28747142/development-of-the-first-who-lentiviral-vector-standard-towards-the-production-control-and-standardisation-of-lentivirus-based-gene-therapy-products
#5
Yuan Zhao, Hannah Stepto, Christian K Schneider
Gene therapy is a rapidly evolving field; so far, there have been more than 2400 gene therapy products in clinical trials and four products on the market (http://www.abedia.com/wiley/vectors.php). A prerequisite for producing gene therapy products is ensuring their quality and safety. This requires appropriately controlled and standardized production and testing procedures that result in consistent safety and efficacy. Assuring the quality and safety of lentivirus based gene therapy products in particular presents a great challenge because they are cell-based multi-gene products which include viral and therapeutic proteins as well as modified cells...
July 26, 2017: Human Gene Therapy Methods
https://www.readbyqxmd.com/read/28743180/factors-predictive-of-occult-nipple-areolar-complex-involvement-in-patients-with-carcinoma-in-situ-of-the-breast
#6
Hyeoseong Hwang, Seho Park, Ja Seung Koo, Hyung Seok Park, Seung Il Kim, Young Up Cho, Byeong-Woo Park, Jung Hyun Yoon, Min Jung Kim, Eun-Kyung Kim
OBJECTIVES: To investigate predictors of occult nipple-areolar complex (NAC) involvement in patients with carcinoma in situ (CIS) and to validate an online probability calculator (CancerMath; www.lifemath.net/cancer/breastcancer/nipplecalc/index.php). METHODS: Mastectomized patients with CIS (n = 104) were retrospectively selected. Clinicopathology and preoperative mammography, ultrasound, and magnetic resonance imaging (MRI) findings were analyzed. RESULTS: Histopathological NAC-positivity was confirmed in 20 (19...
July 25, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28732468/nogoa-predicting-noisy-go-annotations-using-evidences-and-sparse-representation
#7
Guoxian Yu, Chang Lu, Jun Wang
BACKGROUND: Gene Ontology (GO) is a community effort to represent functional features of gene products. GO annotations (GOA) provide functional associations between GO terms and gene products. Due to resources limitation, only a small portion of annotations are manually checked by curators, and the others are electronically inferred. Although quality control techniques have been applied to ensure the quality of annotations, the community consistently report that there are still considerable noisy (or incorrect) annotations...
July 21, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28720084/sequence-based-identification-of-inositol-monophosphatase-like-histidinol-phosphate-phosphatases-hisn-in-corynebacterium-glutamicum-actinobacteria-and-beyond
#8
Robert Kasimir Kulis-Horn, Christian Rückert, Jörn Kalinowski, Marcus Persicke
BACKGROUND: The eighth step of L-histidine biosynthesis is carried out by an enzyme called histidinol-phosphate phosphatase (HolPase). Three unrelated HolPase families are known so far. Two of them are well studied: HAD-type HolPases known from Gammaproteobacteria like Escherichia coli or Salmonella enterica and PHP-type HolPases known from yeast and Firmicutes like Bacillus subtilis. However, the third family of HolPases, the inositol monophosphatase (IMPase)-like HolPases, present in Actinobacteria like Corynebacterium glutamicum (HisN) and plants, are poorly characterized...
July 18, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28708272/prognostic-accuracy-of-cerebroplacental-ratio-and-middle-cerebral-artery-doppler-for-adverse-perinatal-outcomes-a-systematic-review-and-meta-analysis
#9
REVIEW
Charlotte A Schreurs, Marjon A de Boer, Martijn W Heymans, Linda J Schoonmade, Patrick M M Bossuyt, Ben Willem J Mol, Christianne J M de Groot, Caroline J Bax
OBJECTIVE: Ultrasonographic assessment of the cerebroplacental ratio (CPR) and middle cerebral artery (MCA) Doppler is widely used as an additional method to umbilical artery (UA) Doppler to identify fetuses at risk of adverse perinatal outcomes. However, reported estimates of its accuracy vary considerably. We conducted a systematic review with meta-analysis of studies on the prognostic accuracy of CPR and MCA Doppler, and compared this to UA Doppler. METHODS: We queried PubMed, EMBASE, the Cochrane Library, and ClinicalTrials...
July 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28704146/legacy-interventions-with-patients-with-co-occurring-disorders-legacy-definitions-life-satisfaction-and-self-efficacy
#10
Felina C Franklin, Monit Cheung
BACKGROUND: Individuals with co-occurring disorders tend to avoid interaction with others. To instill hope, legacy intervention aims to highlight past experiences while managing life stressors for a positive outlook. Participants take part in legacy activities-crafting tangible projects and recording one's life events-in order to actualize a personal sense of legacy. OBJECTIVES: This pre-posttest research tested whether legacy intervention in a partial hospital program (PHP) on reframing past experiences through creative activities could increase life satisfaction and self-efficacy among adults with co-occurring substance misuse and mental health symptoms...
July 13, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28689638/-oiso-automatic-treatment-of-patients-management-in-oncogenetics
#11
Céline Guien, Aurélie Fabre, Arnaud Lagarde, David Salgado, Catherine Gensollen-Thiriez, Hélène Zattara, Christophe Beroud, Sylviane Olschwang
INTRODUCTION: Oncogenetics is a long-term process, which requires a close relation between patients and medical teams, good familial links allowing lifetime follow-up. Numerous documents are exchanged in between the medical team, which has to frequently interact. We present here a new tool that has been conceived specifically for this management. METHODS: The tool has been developed according to a model-view-controler approach with the relational system PostgreSQL 9...
July 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28679896/creating-xml-php-interface-for-ban-interoperability
#12
Vasileios Fragkos, Konstantinos Katzis, Georgios Despotou
Recent advances in medical and electronic technologies have introduced the use of Body Area Networks as a part of e-health, for constant and accurate monitoring of patients and the transmission as well as processing of the data to develop a holistic Electronic Health Record. The rising global population, different BAN manufacturers and a variety of medical systems pose the issue of interoperability between BANs and systems as well as the proper way to propagate medical data in an organized and efficient manner...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28671695/engineered-aavs-for-efficient-noninvasive-gene-delivery-to-the-central-and-peripheral-nervous-systems
#13
Ken Y Chan, Min J Jang, Bryan B Yoo, Alon Greenbaum, Namita Ravi, Wei-Li Wu, Luis Sánchez-Guardado, Carlos Lois, Sarkis K Mazmanian, Benjamin E Deverman, Viviana Gradinaru
Adeno-associated viruses (AAVs) are commonly used for in vivo gene transfer. Nevertheless, AAVs that provide efficient transduction across specific organs or cell populations are needed. Here, we describe AAV-PHP.eB and AAV-PHP.S, capsids that efficiently transduce the central and peripheral nervous systems, respectively. In the adult mouse, intravenous administration of 1 × 10(11) vector genomes (vg) of AAV-PHP.eB transduced 69% of cortical and 55% of striatal neurons, while 1 × 10(12) vg of AAV-PHP.S transduced 82% of dorsal root ganglion neurons, as well as cardiac and enteric neurons...
August 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28648309/economic-burden-of-community-acquired-pneumonia-among-pediatric-patients-aged-3-months-to-19-years-in-the-philippines
#14
Bernadette A Tumanan-Mendoza, Victor L Mendoza, Melchor Victor G Frias, Dolores D Bonzon
OBJECTIVE: 1) To determine the hospitalization, follow-up and total costs, and the economic burden of community-acquired pneumonia among pediatric patients aged 3 months to <19 years of age; 2) To compare the estimated cost of hospitalization to the pneumonia case rate payments of the Philippine Health Insurance Corporation (PhilHealth). METHODS: Using the societal perspective, both healthcare and non-healthcare costs were estimated. This was done through two tertiary private hospitals in the Philippines...
May 2017: Value in Health Regional Issues
https://www.readbyqxmd.com/read/28648114/pseudohypoparathyroidism-type-1b-a-rare-cause-of-tetany-case-report
#15
Catarina Garcia, Cátia R Correia, Lurdes Lopes
Pseudohypoparathyroidism (PHP) is a rare group of disorders characterised by end-organ resistance to the parathyroid hormone (PTH). A 16-year-old boy presented with a 2-year history of involuntary dystonic movements involving mainly the left hand, initially after writing and later during physical exercise. Serum calcium was 1.37 mmol/L (2.20-2.69), phosphate 2.1 mmol/L (0.8-1.45) and PTH 302 ng/L (12-88). CT scan of the head demonstrated multiple subcortical and diffuse basal ganglia calcifications. Genetic analysis confirmed a methylation defect in the GNAS cluster on chromosome 20q13...
June 26, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28644568/treatment-of-avoidant-restrictive-food-intake-disorder-in-a-cohort-of-young-patients-in-a-partial-hospitalization-program-for-eating-disorders
#16
Rollyn M Ornstein, Jamal H Essayli, Terri A Nicely, Emily Masciulli, Susan Lane-Loney
OBJECTIVE: Avoidant/restrictive food intake disorder (ARFID) is a recently named condition to classify patients who present with restricted nutritional intake without body image distortion or fear of weight gain. We sought to compare treatment outcomes of patients with ARFID in a family-centered partial hospital program (PHP) to those with other eating disorders (ED). METHODS: A retrospective chart review of 130 patients 7 to 17 years of age admitted to the program from 2008 to 2012 was performed...
June 23, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28641462/microbiological-control-and-antibacterial-action-of-a-propolis-containing-mouthwash-and-control-of-dental-plaque-in-humans
#17
Karina Basso Santiago, Gilce Maria Piana, Bruno José Conti, Eliza de Oliveira Cardoso, Bruna Fernanda Murbach Teles Andrade, Mirella Rossitto Zanutto, Vera Lúcia Mores Rall, Ary Fernandes, José Maurício Sforcin
Propolis is a bee product with several biological properties. This study aimed at investigating a propolis-containing mouthwash, its organoleptic properties, microbial contamination and its antibacterial action in vitro. This mouthwash was assessed in vivo to control dental plaque in humans. The presence of microorganisms was analyzed and the minimum inhibitory concentration against Streptococcus mutans was determined. A comparative study was done in vivo using propolis, chlorhexidine, and propolis plus chlorhexidine in lower concentrations for 14 days...
June 23, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28641268/newgoa-predicting-new-go-annotations-of-proteins-by-bi-random-walks-on-a-hybrid-graph
#18
Guoxian Yu, Guangyuan Fu, Jun Wang, Yingwen Zhao
A remaining key challenge of modern biology is annotating the functional roles of proteins. Various computational models have been proposed for this challenge. Most of them assume the annotations of annotated proteins are complete. But in fact, many of them are incomplete. We proposed a method called NewGOA to predict new Gene Ontology (GO) annotations for incompletely annotated proteins and for completely un-annotated ones. NewGOA employs a hybrid graph, composed of two types of nodes (proteins and GO terms), to encode interactions between proteins, hierarchical relationships between terms and available annotations of proteins...
June 15, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28634727/safety-and-efficacy-of-chemosaturation-in-patients-with-primary-and-secondary-liver-tumors
#19
Martha M Kirstein, Steffen Marquardt, Nils Jedicke, Silke Marhenke, Wolfgang Koppert, Michael P Manns, Frank Wacker, Arndt Vogel
BACKGROUND: Chemosaturation with percutaneous hepatic perfusion (CS-PHP; hepatic CHEMOSAT(®) delivery system; Delcath Systems Inc, USA) is a novel medical device, which delivers high doses of melphalan directly to the liver in patients with primary and secondary liver tumors while limiting systemic toxicity through hemofiltration of the hepatic venous blood. The aim of this study was to analyze the safety and efficacy of the second-generation CS-PHP after 54 treatments at Hannover Medical School, Germany...
June 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28634192/a-new-enzyme-linked-immunosorbent-assay-system-for-human-serum-hepatic-triglyceride-lipase
#20
Kazuya Miyashita, Katsuyuki Nakajima, Isamu Fukamachi, Yuji Muraba, Takafumi Koga, Yohnosuke Shimomura, Tetsuyo Machida, Masami Murakami, Junji Kobayashi
There is no established method for measuring human hepatic triglyceride (TG) lipase (HTGL) concentration in serum. In this study, we developed new monoclonal Abs (MoAbs) (9A1 mouse MoAb and 141A1 rat MoAb) that react with HTGL both in serum and in postheparin plasma (PHP) and established a novel ELISA system for measuring serum HTGL and PHP-HTGL concentrations. To confirm the specificity of MoAbs, we performed immunoprecipitation-immunoblotting analysis. Both 9A1 mouse MoAb and 141A1 rat MoAb were able to immunoprecipitate not only recombinant HTGL and PHP-HTGL but also serum HTGL, demonstrating that HTGL exists in serum obtained without heparin injection...
August 2017: Journal of Lipid Research
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