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https://www.readbyqxmd.com/read/29150707/a-guard-killer-phage-cocktail-effectively-lyses-the-host-and-inhibits-the-development-of-phage-resistant-strains-of-escherichia-coli
#1
Ling Yu, Shuang Wang, Zhimin Guo, Hongtao Liu, Diangang Sun, Guangmou Yan, Dongliang Hu, Chongtao Du, Xin Feng, Wenyu Han, Jingmin Gu, Changjiang Sun, Liancheng Lei
In recent years, after the emergence of a large number of multidrug-resistant bacteria, phages and phage-associated products for the prevention and control of bacterial disease have revealed prominent advantages as compared with antibiotics. However, bacteria are susceptible to becoming phage-resistant, thus severely limiting the application of phage therapy. In this study, Escherichia coli cells were incubated with lytic bacteriophages to obtain mutants that were resistant to the lytic phages. Then, bacteriophages against the phage-resistant variants were isolated and subsequently mixed with the original lytic phage to prepare a novel phage cocktail for bactericidal use...
November 17, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29150665/a-streamlined-cloning-workflow-minimising-the-time-to-strain-pipeline-for-pichia-pastoris
#2
Kate E Royle, Karen Polizzi
Although recent advances in E. coli self-assembly have greatly simplified cloning, these have not yet been harnessed for the high-throughput generation of expression strains in the early research and discovery phases of biopharmaceutical production. Here, we have refined the technique and incorporated it into a streamlined workflow for the generation of Pichia pastoris expression strains, reducing the timeline by a third and removing the reliance on DNA editing enzymes, which often require troubleshooting and increase costs...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149735/carbamazepine-lamotrigine-levetiracetam-and-valproic-acid-in-dried-blood-spots-with-liquid-chromatography-tandem-mass-spectrometry-method-development-and-validation
#3
Camilla Linder, Anna Hansson, Sara Sadek, Lars L Gustafsson, Anton Pohanka
Monitoring of antiepileptic drugs in children with epilepsy require multiple visits at a clinic for blood collection. Dried blood spot sampling is an alternative way of collection, performed at home by self-collection and can save time and costs for patients and family members. The aim was to develop and validate an LC-MS/MS dried blood spot method for carbamazepine, lamotrigine, levetiracetam and valproic acid with the requirements of using standard equipment and material in a routine laboratory setting. Whatman-903 filter paper was utilized, and discs were punched into a 96 well plate with an automated puncher and barcode reading...
November 4, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29149101/how-does-p53-induce-apoptosis-and-how-does-this-relate-to-p53-mediated-tumour-suppression
#4
REVIEW
Brandon J Aubrey, Gemma L Kelly, Ana Janic, Marco J Herold, Andreas Strasser
The tumour suppressor gene TP53 is mutated in ~50% of human cancers. In addition to its function in tumour suppression, p53 also plays a major role in the response of malignant as well as nontransformed cells to many anticancer therapeutics, particularly those that cause DNA damage. P53 forms a homotetrameric transcription factor that is reported to directly regulate ~500 target genes, thereby controlling a broad range of cellular processes, including cell cycle arrest, cell senescence, DNA repair, metabolic adaptation and cell death...
November 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29148589/determination-of-telbivudine-in-the-plasma-of-chronic-hepatitis-b-patients-in-long-term-treatment-by-high-performance-liquid-chromatographic-tandem-mass-spectrometry
#5
Bicui Chen, Li Chen, Cai Cheng, Mingkang Zhong, Xiaojin Shi, Jiming Zhang, Bin Wang
Usually, creatine kinase elevation is commonly reported in telbivudine-treated patients. However, little is known abosut the relationship between this adverse drug reaction and plasma concentration. In this study, a sensitive, rapid and safe quantitative bioanalytical method has been established by using LC-MS/MS for the determination of telbivudine in a clinical study of chronic hepatitis B (CHB) patients. The assay was linear in a dynamic 10-10,000 ng/mL range (r(2) > 0.999) and total analysis time was 6 min in this method...
November 17, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29148129/development-of-functional-electrical-stimulation-rowing-the-rowstim-series
#6
Brian Andrews, Robin Gibbons, Garry Wheeler
Potentially, functional electrical stimulation (FES)-assisted exercise may have an important therapeutic role in reducing comorbidities associated with spinal cord injury (SCI). Here, we present an overview of these secondary life-threatening conditions, discuss the rationale behind the development of a hybrid exercise called FES rowing, and describe our experience in developing FES rowing technology. FES rowing and sculling are unique forms of adaptive rowing for those with SCI. The paralyzed leg musculature is activated by multiple channels of electrical pulses delivered via self-adhesive electrodes attached to the skin...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29147618/programmed-cell-death-ligands-expression-in-phaeochromocytomas-and-paragangliomas-relationship-with-the-hypoxic-response-immune-evasion-and-malignant-behavior
#7
David J Pinato, James R Black, Sebastian Trousil, Roberto E Dina, Pritesh Trivedi, Francesco A Mauri, Rohini Sharma
The hypoxic response underlies the pathogenesis and malignant behavior of PCC/PGL. Regulation of PD-1 receptor-ligand signaling, a therapeutically actionable driver of the anti-tumor immune response, is a hypoxic-driven trait across malignancies. We evaluated the prognostic role of PD ligands in association with biomarkers of hypoxia and angiogenesis in patients with PCC/PGL. Tissue microarrays sections including consecutive cases diagnosed between 1983-2011 were stained for PD-L1 and 2, hypoxia inducible factor 1a (Hif-1a), Carbonic Anhydrase IX (CaIX), Vascular Endothelial Growth Factor-A (VEGF-A)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29145935/effectiveness-of-pharmacist-led-anticoagulation-management-on-clinical-outcomes-a-systematic-review-and-meta-analysis
#8
Kelu Hou, Hui Yang, Zhikang Ye, Ying Wang, Lihong Liu, Xiangli Cui
OBJECTIVES: We performed this systematic review and meta-analysis to confirm whether patients benefit more from pharmacist-led anticoagulation management than other models. METHODS: We searched PubMed, Embase, Cochrane Library and reference lists of yielded results conducted up to April 25, 2017. RCTs and observational cohort studies and case-control studies which compared the percentage of time within the target therapeutic range (TTR), the percentage of time within the expanded therapeutic range (TER), haemorrhage events, thrombosis events, mortality, patient satisfaction and/or medicine cost saving of pharmacist-led anticoagulation management with other models, and species were limited to humans...
2017: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29145216/comparison-of-warfarin-use-in-terms-of-efficacy-and-safety-in-two-different-polyclinics
#9
Salih Kılıç, Hatice Soner Kemal, Elif İlkay Yüce, Evrim Şimşek, Burcu Yağmur, Nuray Memişoğlu Akgül, Cahide Soydaş Çınar, Mehdi Zoghi, Cemil Gürgün
OBJECTIVE: This study compared the efficacy and safety of warfarin in specialized international normalized ratio (INR) outpatient clinic (INR-C) and in general cardiology outpatient clinic (General-C). METHODS: Herein, 381 consecutive patients with a regular follow-up at INR-C (n=233) or General-C (n=148) for at least 1 year were retrospectively included. While INR-C patients were followed by a single experienced trained nurse, General-C patients were followed by a different cardiologist who worked in a rotational principle every month...
November 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29142182/a-real-world-retrospective-cohort-study-of-combined-therapy-with-bevacizumab-and-paclitaxel-in-japanese-patients-with-metastatic-breast-cancer
#10
Hirofumi Yamada, Kenichi Inoue, Shigenori E Nagai, Maki Nakai, Fumio Arisawa, Hiroyuki Ueda, Tsuyoshi Saito, Jun Ninomiya, Toru Kuroda, Takashi Sakurai, Hitomi Kodama, Kei Kimizuka, Satoshi Hata, Toshihiro Kai, Masafumi Kurosumi
OBJECTIVE: Combined therapy with bevacizumab and paclitaxel (BP regimen) as a first-line treatment has proven highly effective with good tolerance for patients with metastatic breast cancer (MBC). The objective of this study was to examine the efficacy and safety of the BP regimen for Japanese patients with MBC in real-world clinical settings. METHODS: From June 2012 through May 2014, we recruited 94 patients at 10 medical institutions. The primary endpoint was time to treatment failure (TTF), and the secondary endpoints were overall survival (OS) and safety...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29141695/methylxanthines-induce-structural-and-functional-alterations-of-the-cardiac-system-in-zebrafish-embryos
#11
Ram Manohar Basnet, Daniela Zizioli, Michela Guarienti, Dario Finazzi, Maurizio Memo
BACKGROUND: Zebrafish embryos are emerging as a model for pharmacological and toxicological studies. We used zebrafish embryos to study the general toxicity and cardiovascular effects of eight methylxanthines: aminophylline, caffeine, diprophylline, doxofylline, etophylline, 3-isobutyl-1-methylxanthine (IBMX), pentoxifylline and theophylline. METHODS: Microinjections of the eight methylxanthines were performed in 1-2 cell stage zebrafish embryos and the general toxicity and cardiovascular effects were analyzed at different time points...
November 15, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29139041/drug-safety-analysis-in-a-real-life-cohort-of-parkinson-s-disease-patients-with-polypharmacy
#12
Saskia Müller-Rebstein, Claudia Trenkwalder, Jens Ebentheuer, Wolfgang H Oertel, Carsten Culmsee, Günter U Höglinger
BACKGROUND: Polypharmacy is common in geriatric Parkinson's disease (PD) patients in advanced disease stages with multiple comorbidities, bearing multiple risks for drug safety in theory. OBJECTIVE: The aim of this study was to empirically identify the most frequent and relevant contraindications and drug interactions actually occurring and compromising drug safety in PD in real life. METHODS: We conducted a prospective observational study in a multimorbid cohort of PD patients with polypharmacy admitted to a specialized hospital...
November 14, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29137322/the-c-jun-n-terminal-kinase-plays-a-key-role-in-ocular-degenerative-changes-in-a-mouse-model-of-alzheimer-disease-suggesting-a-correlation-between-ocular-and-brain-pathologies
#13
Lucia Buccarello, Alessandra Sclip, Matteo Sacchi, Anna Maria Castaldo, Ilaria Bertani, Andrea ReCecconi, Silvia Maestroni, Gianpaolo Zerbini, Paolo Nucci, Tiziana Borsello
Recently a range of ocular manifestations such as retinal and lens amyloid-beta accumulation and retinal nerve fiber layer loss have been proposed as potential biomarkers in Alzheimer disease (AD). The TgCRND8 mouse model of AD exhibits age-dependent amyloid β (Aβ) oligomers accumulation and cognitive defects, amyloid plaques and hyperphosphorylated Tau deposition and inflammation. We proved the correlation between ocular pathologies and AD, observing increased levels of p-APP and p-Tau, accumulation of Aβ oligomers in the retina, eye, and optic nerve...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136551/efficient-and-relatively-safe-emulsification-microextraction-using-a-deep-eutectic-solvent-for-influential-enrichment-of-trace-main-anti-depressant-drugs-from-complicated-samples
#14
Ahmad Ghoochani Moghadam, Maryam Rajabi, Alireza Asghari
In this research work, an efficient, facile, prompt, and relatively safe enrichment procedure, named as air agitated-emulsification microextraction based on a low density-deep eutectic solvent (AA-EME-LD-DES), was applied for the first time to separate trace amounts of the drugs escitalopram, desipramine, and imipramine from complex sample solutions. This bio-degradable and cheap choline chloride-based extracting agent was readily prepared by the easy blending process at the ambient temperature, resulting in a eutectic liquid mixture with distinct features...
September 28, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29136373/photocontrol-of-antibacterial-activity-shifting-from-uv-to-red-light-activation
#15
Michael Wegener, Mickel J Hansen, Arnold J M Driessen, Wiktor Szymanski, Ben L Feringa
The field of photopharmacology aims to introduce smart drugs that, through the incorporation of molecular photoswitches, allow for the remote spatial and temporal control of bioactivity by light. This concept could be particularly beneficial in the treatment of bacterial infections, by reducing the systemic and environmental side-effects of antibiotics. A major concern in the realization of such light-responsive drugs is the wavelength of the light that is applied. Studies on the photocontrol of biologically active agents mostly rely on UV light, which is cytotoxic and poorly suited for tissue penetration...
November 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29135665/cryoablation-of-bone-metastases-from-renal-cell-carcinoma-for-local-tumor-control
#16
Carly S Gardner, Joe E Ensor, Kamran Ahrar, Steven Y Huang, Sharjeel H Sabir, Nizar M Tannir, Valerae O Lewis, Alda L Tam
BACKGROUND: Patients with bone metastases from renal cell carcinoma often are not surgical candidates and have a poor prognosis. There are limited data on the use of cryoablation as a locoregional therapy for bone metastases. Our objective was to assess the local tumor-control rate following cryoablation of bone metastases in the setting of renal cell carcinoma. METHODS: We retrospectively reviewed the medical records of patients with metastatic renal cell carcinoma who underwent cryoablation for bone metastases between 2007 and 2014...
November 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29135458/immediate-effects-of-osteopathic-treatment-versus-therapeutic-exercise-on-patients-with-chronic-cervical-pain
#17
Xabier Galindez-Ibarbengoetxea, Igor Setuain, Robinson Ramírez-Velez, Lars L Andersen, Miriam González-Izal, Andoni Jauregi, Mikel Izquierdo
Context • Alternatives to medication for immediate pain relief are needed because long-term use of pain medication has been associated with adverse effects. High-velocity, low-amplitude (HVLA) manipulation techniques (MTs) and craniocervical flexion (CCF) exercises have been frequently used in the management of chronic cervical pain. Objective • The study intended to compare the immediate effects on pain of a treatment using HVLA manipulation versus one using a CCF exercise protocol. Design • The research team designed a single-blinded, randomized clinical trial...
November 14, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29133392/closed-loop-control-of-targeted-ultrasound-drug-delivery-across-the-blood-brain-tumor-barriers-in-a-rat-glioma-model
#18
Tao Sun, Yongzhi Zhang, Chanikarn Power, Phillip M Alexander, Jonathan T Sutton, Muna Aryal, Natalia Vykhodtseva, Eric L Miller, Nathan J McDannold
Cavitation-facilitated microbubble-mediated focused ultrasound therapy is a promising method of drug delivery across the blood-brain barrier (BBB) for treating many neurological disorders. Unlike ultrasound thermal therapies, during which magnetic resonance thermometry can serve as a reliable treatment control modality, real-time control of modulated BBB disruption with undetectable vascular damage remains a challenge. Here a closed-loop cavitation controlling paradigm that sustains stable cavitation while suppressing inertial cavitation behavior was designed and validated using a dual-transducer system operating at the clinically relevant ultrasound frequency of 274...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29133167/patterns-of-lymph-node-sampling-and-the-impact-of-lymph-node-density-in-favorable-histology-wilms-tumor-an-analysis-of-the-national-cancer-database
#19
A F Saltzman, A Carrasco, A Amini, J H Aldrink, R Dasgupta, K W Gow, R D Glick, P F Ehrlich, N G Cost
INTRODUCTION: There is controversy about the role of lymph node (LN) sampling or dissection in the management of favorable histology (FH) Wilms tumor (WT), specifically how it performed and how it may impact survival. OBJECTIVE: The objective of this study was to analyze factors affecting LN sampling patterns and the impact of LN yield and density (number of positive LNs/LNs examined) on overall survival (OS) in patients with advanced-stage favorable histology Wilms tumor (FHWT)...
October 31, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29131717/in-vitro-effects-of-high-intensity-laser-photobiomodulation-on-equine-bone-marrow-derived-mesenchymal-stem-cell-viability-and-cytokine-expression
#20
Frances J Peat, Aimee C Colbath, Lori M Bentsen, Laurie R Goodrich, Melissa R King
OBJECTIVE: This study aimed to examine the influence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on equine bone marrow-derived mesenchymal stem cell (MSC) viability, proliferation, and cytokine expression in vitro. BACKGROUND: Photobiomodulation of cells using monochromatic light is a technique designed to influence cellular processes. Previous studies have shown dose-dependent effects of low-level laser irradiation on cell proliferation and cytokine expression in a range of cell types and species...
November 13, 2017: Photomedicine and Laser Surgery
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