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https://www.readbyqxmd.com/read/28634037/clinical-benefit-of-drugs-targeting-mitochondrial-function-as-an-adjunct-to-reperfusion-in-st-segment-elevation-myocardial-infarction-a-meta-analysis-of-randomized-clinical-trials
#1
Gianluca Campo, Rita Pavasini, Giampaolo Morciano, A Michael Lincoff, C Michael Gibson, Masafumi Kitakaze, Jacob Lonborg, Amrita Ahluwalia, Hideki Ishii, Michael Frenneaux, Michel Ovize, Marcello Galvani, Dan Atar, Borja Ibanez, Giampaolo Cerisano, Simone Biscaglia, Brandon J Neil, Masanori Asakura, Thomas Engstrom, Daniel A Jones, Dana Dawson, Roberto Ferrari, Paolo Pinton, Filippo Ottani
AIMS: To perform a systematic review and meta-analysis of randomized clinical trials (RCT) comparing the effectiveness of drugs targeting mitochondrial function vs. placebo in patients with ST-segment elevation myocardial infarction (STEMI) undergoing mechanical coronary reperfusion. METHODS: Inclusion criteria: RCTs enrolling STEMI patients treated with primary percutaneous coronary intervention (PCI) and comparing drugs targeting mitochondrial function vs. placebo...
June 13, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28630203/bactericidal-and-sterilizing-activity-of-a-novel-regimen-with-bedaquiline-pretomanid-moxifloxacin-and-pyrazinamide-in-a-murine-model-of-tuberculosis
#2
Si-Yang Li, Rokeya Tasneen, Sandeep Tyagi, Heena Soni, Paul J Converse, Khisimuzi Mdluli, Eric L Nuermberger
New regimens based on two or more novel agents are sought to shorten or simplify treatment of tuberculosis (TB), including drug-resistant forms. Prior studies showed that the novel combinations of bedaquiline (BDQ) + pretomanid (PMD) + pyrazinamide (PZA) and of PMD + moxifloxacin (MXF) + PZA shorten the treatment duration necessary to prevent relapse by 2-3 and 1-2 months, respectively, compared with the current first-line regimen in a murine TB model. These 3-drug combinations are now being studied in clinical trials...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28626897/ultrastable-near-infrared-conjugated-polymer-nanoparticles-for-dually-photoactive-tumor-inhibition
#3
Tao Yang, Ling Liu, Yibin Deng, Zhengqing Guo, Guobing Zhang, Zhishen Ge, Hengte Ke, Huabing Chen
It is highly desired that satisfactory photoactive agents with ideal photophysical characteristics are explored for potent cancer phototherapeutics. Herein, bifunctional nanoparticles of low-bandgap donor-acceptor (D-A)-type conjugated-polymer nanoparticles (CP-NPs) are developed to afford a highly efficient singlet-to-triplet transition and photothermal conversion for near-infrared (NIR) light-induced photodynamic (PDT)/photothermal (PTT) treatment. CP-NPs display remarkable NIR absorption with the peak at 782 nm, and perfect resistance to photobleaching...
June 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28624728/nitrite-production-from-urine-for-sulfide-control-in-sewers
#4
Min Zheng, Zhiqiang Zuo, Yizhen Zhang, Yujia Cui, Qian Dong, Yanchen Liu, Xia Huang, Zhiguo Yuan
Most commonly used methods for sewer sulfide control involves dosing chemical agents to wastewater, which incurs high operational costs. Here, we propose and demonstrate a cost-effective and environmentally attractive approach to sewer sulfide control through urine separation and its subsequent conversion to nitrite prior to intermittent dosage to sewers. Urine collected from a male toilet urinal was fed to laboratory-scale sequencing batch reactors. The reactors stably converted roughly 50% of the nitrogen in urine to nitrite, with high abundance (at 17...
May 23, 2017: Water Research
https://www.readbyqxmd.com/read/28623874/lansoprazole-sulphide-pharmacokinetics-of-this-promising-anti-tuberculous-agent
#5
Sipho Mdanda, Sooraj Baijnath, Adeola Shobo, Sanil D Singh, Glenn E M Maguire, Hendrik G Kruger, Per I Arvidsson, Tricia Naicker, Thavendran Govender
Lansoprazole (LPZ) is a commercially available proton-pump inhibitor (PPI) whose primary metabolite, lansoprazole sulphide (LPZS) was recently reported to have in vitro and in vivo activity against M. tb. It was also reported that a 300 mg kg(-1) oral administration of LPZS was necessary to reach therapeutic levels in the lung, with the equivalent human dose being unrealistic. A validated liquid chromatography-tandem mass spectrometric method (LC-MS/MS) for the simultaneous quantification LPZ and LPZS in rat plasma and lung homogenates, was developed...
June 17, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28623497/-psychiatric-emergencies
#6
F Schneider, S Weber-Papen
Psychiatric emergencies present a frequent and interdisciplinary challenge. Clinical diagnosis and management are complicated by the acuity, and the patient's compliance is often limited by the illness. Psychiatric emergencies include states of acute agitation, suicidality, delirium, stupor, and drug-induced emergencies. Sometimes interventions such as conversational contact, responding empathically to patients, or "talking down" are sufficient. If pharmacotherapy is necessary, benzodiazepines and antipsychotic drugs are the primary agents of choice...
June 16, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28622088/engineering-osteoinductive-biomaterials-by-bioinspired-synthesis-of-apatite-coatings-on-collagen-hydrogels-with-varied-pore-microarchitectures
#7
Jacqueline Lorraine Harding, Matthew Osmond, Melissa Diane Krebs
Biomaterial controlled osteoinduction is influenced by the porous microenvironment and the composition of incorporated calcium orthophosphate (CaPi) polymorphs, however for the design of materials that rival the efficacies of natural grafts a systematic approach to assessing the physicochemical properties that affects cellular differentiation is needed. In this research, we introduce a bioinspired synthetic approach to the mineralization of preformed porous collagen hydrogel scaffolds with tunable apatite coatings...
June 16, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28621710/a-recyclable-cu-mof-74-catalyst-for-the-ligand-free-o-arylation-reaction-of-4-nitrobenzaldehyde-and-phenol
#8
Pedro Leo, Gisela Orcajo, David Briones, Guillermo Calleja, Manuel Sánchez-Sánchez, Fernando Martínez
The activity and recyclability of Cu-MOF-74 as a catalyst was studied for the ligand-free C-O cross-coupling reaction of 4-nitrobenzaldehyde (NB) with phenol (Ph) to form 4-formyldiphenyl ether (FDE). Cu-MOF-74 is characterized by having unsaturated copper sites in a highly porous metal-organic framework. The influence of solvent, reaction temperature, NB/Ph ratio, catalyst concentration, and basic agent (type and concentration) were evaluated. High conversions were achieved at 120 °C, 5 mol % of catalyst, NB/Ph ratio of 1:2, DMF as solvent, and 1 equivalent of K₂CO₃ base...
June 16, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28620583/engineering-of-genetically-arrested-parasites-gaps-for-a-precision-malaria-vaccine
#9
REVIEW
Oriana Kreutzfeld, Katja Müller, Kai Matuschewski
Continuous stage conversion and swift changes in the antigenic repertoire in response to acquired immunity are hallmarks of complex eukaryotic pathogens, including Plasmodium species, the causative agents of malaria. Efficient elimination of Plasmodium liver stages prior to blood infection is one of the most promising malaria vaccine strategies. Here, we describe different genetically arrested parasites (GAPs) that have been engineered in Plasmodium berghei, P. yoelii and P. falciparum and compare their vaccine potential...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28618915/coronary-artery-disease-risk-stratification-and-patient-selection-for-more-aggressive-secondary-prevention
#10
François Schiele, Fiona Ecarnot, Romain Chopard
In patients with stable coronary artery disease, clinical outcomes are predominantly characterized by the consequences of atherosclerosis on the myocardium, but also by complications of atherosclerosis, notably recurrent acute coronary syndrome or stroke. Secondary prevention therapy is therefore key in this patient population. Intensification of secondary prevention therapy is possible, at the price of a therapeutic risk or a high cost, therefore justifying careful selection of patients with a high residual risk and low therapeutic risk...
June 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28616943/a-colloidal-quantum-dot-photonic-crystal-phosphor-nanostructural-engineering-of-the-phosphor-for-enhanced-color-conversion
#11
Kyungtaek Min, Hyunho Jung, Yeonsang Park, Kyung-Sang Cho, Young-Geun Roh, Sung Woo Hwang, Heonsu Jeon
Phosphors, long-known color-converting photonic agents, are gaining increasing attention owing to the interest in white LEDs and related applications. Conventional material-based approaches to phosphors focus on obtaining the desired absorption/emission wavelengths and/or improving quantum efficiency. Here, we report a novel approach for enhancing the performance of phosphors: structural modification of phosphors. We incorporated inorganic colloidal quantum dots (CQDs) into a lateral one-dimensional (1D) photonic crystal (PhC) thin-film structure, with its photonic band-edge (PBE) modes matching the energy of 'excitation photons' (rather than 'emitted photons', as in most other PBE application devices)...
June 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28615971/clinical-use-of-the-oncotype-dx-genomic-test-to-guide-treatment-decisions-for-patients-with-invasive-breast-cancer
#12
REVIEW
Terri P McVeigh, Michael J Kerin
Implementation of the Oncotype DX assay has led to a change in the manner in which chemotherapy is utilized in patients with early stage, estrogen receptor (ER)-positive, node-negative breast cancer; ensuring that patients at highest risk of recurrence are prescribed systemic treatment, while at the same time sparing low-risk patients potential adverse events from therapy unlikely to influence their survival. This test generates a recurrence score between 0 and 100, which correlates with probability of distant disease recurrence...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28612162/li-rads-and-transplantation-for-hepatocellular-carcinoma
#13
REVIEW
An Tang, Kathryn J Fowler, Victoria Chernyak, William C Chapman, Claude B Sirlin
Patients with hepatocellular carcinoma (HCC) may be eligible for liver transplantation. Liver transplant candidates with HCC compete for the same deceased donor organs as those without HCC. These scarce organs must be allocated fairly and justly to those who will benefit most. Unlike most other cancers, HCC is often diagnosed noninvasively by imaging without biopsy confirmation. Therefore, radiologists play an important role in diagnosing definite HCC (i.e., LR-5 category) that counts toward staging and determination of liver transplant eligibility...
June 13, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28611005/bottom-up-synthesis-of-ws2-nanosheets-with-synchronous-surface-modification-for-imaging-guided-tumor-regression
#14
Shige Wang, Jiulong Zhao, Hailun Yang, Chenyao Wu, Fei Hu, Haizhou Chang, Guixiang Li, Dan Ma, Duowu Zou, Mingxian Huang
Two-dimensional transition metal dichalcogenides (TMDs) have been receiving great attention as NIR photothermal transducing agent in tumor photothermal therapy. Keeping in mind the low efficiency of the conventional top-down exfoliation method to produce 2D TMDs and the complexity of their surface modifications, we herein proposed a bottom-up strategy for the one-pot and controlled synthesis of surface polyvinyl pyrrolidone (PVP) modified WS2 nanosheets, by hydrothermally treating the mixture solution of tetrathiotungstate and PVP...
June 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28609231/methadone-dose-selection-for-treatment-of-pain-compared-with-consensus-recommendations
#15
Parisa Karimian, Rabia S Atayee, Toluwalase A Ajayi, Kyle P Edmonds
BACKGROUND: Many factors make methadone an appealing option for treatment of pain in patients seen by palliative care; however, complex drug-related properties and variable patient response complicate appropriate conversion ratios from other opioids to methadone. Currently, there is no consensus regarding one accepted conversion method. OBJECTIVE: Current patterns of prescribing for clinicians at a three-hospital academic health system on initial rotation to methadone for the management of pain were compared with a series of consensus recommendations for methadone dose calculation...
June 13, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28609102/mesoporous-titania-microspheres-with-highly-tunable-pores-as-an-anode-material-for-lithium-ion-batteries
#16
Michael G Fischer, Xiao Hua, Bodo D Wilts, Ilja Gunkel, Thomas Bennett, Ullrich Steiner
Mesoporous titania microspheres (MTM) have been employed in many applications including (photo-)catalysis as well as energy conversion and storage. Their morphology offers a hierarchical structural design motif that lends itself to being incorporated into established large-scale fabrication processes. Despite the fact that device performance hinges on the precise morphological characteristics of these materials, control over the detailed mesopore structure and the tunability of the pore size remains a challenge...
June 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28608583/effects-of-dissolved-carbon-dioxide-on-the-integrity-of-the-rumen-epithelium-an-agent-in-the-development-of-ruminal-acidosis
#17
R Rackwitz, G Gäbel
The carbon dioxide released and dissolved in rumen fluid may easily permeate across the epithelial cell membrane. Thus, we hypothesized that CO2 may act as proton carrier and induce epithelial damage under acidotic conditions. Ovine ruminal epithelia were mounted in Ussing chambers under short-circuit conditions. The serosal buffer solution had a constant pH of 7.4 and was gassed either with 100% oxygen or with carbogen (95% O2 /5% CO2 ). The mucosal solution was gassed with either 100% oxygen or 100% carbon dioxide...
June 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28607928/extremely-low-frequency-electromagnetic-fields-affect-myogenic-processes-in-c2c12-myoblasts-role-of-gap-junction-mediated-intercellular-communication
#18
Caterina Morabito, Nathalie Steimberg, Francesca Rovetta, Jennifer Boniotti, Simone Guarnieri, Giovanna Mazzoleni, Maria A Mariggiò
Extremely low-frequency electromagnetic fields (ELF-EMFs) can interact with biological systems. Although they are successfully used as therapeutic agents in physiatrics and rehabilitative practice, they might represent environmental pollutants and pose a risk to human health. Due to the lack of evidence of their mechanism of action, the effects of ELF-EMFs on differentiation processes in skeletal muscle were investigated. C2C12 myoblasts were exposed to ELF-EMFs generated by a solenoid. The effects of ELF-EMFs on cell viability and on growth and differentiation rates were studied using colorimetric and vital dye assays, cytomorphology, and molecular analysis of MyoD and myogenin expression, respectively...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28606074/modulatory-influence-of-acacia-hydaspica-r-parker-ethyl-acetate-extract-against-cisplatin-inveigled-hepatic-injury-and-dyslipidemia-in-rats
#19
Tayyaba Afsar, Suhail Razak, Ali Almajwal, Muhammad Rashid Khan
BACKGROUND: Cisplatin (CP) is recommended as a first-line chemotherapeutic agent for solid tumors, however its usage outcomes in severe adverse effects. Acacia hydaspica possesses various phytochemicals and pharmacological activities. The current study aimed to investigate the protective effect of A. hydaspica ethyl acetate extract (AHE) against CP induced aberrations in lipid profile and hepatotoxicity. METHODS: Rats were randomly separated into six groups (n = 6)...
June 12, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28605594/rational-design-of-branched-nanoporous-gold-nanoshells-with-enhanced-physico-optical-properties-for-optical-imaging-and-cancer-therapy
#20
Jibin Song, Xiangyu Yang, Zhen Yang, Lisen Lin, Yijing Liu, Zijian Zhou, Zheyu Shen, Guocan Yu, Yunlu Dai, Orit Jacobson, Jeeva Munasinghe, Bryant Yung, Gao-Jun Teng, Xiaoyuan Chen
Reported procedures on the synthesis of gold nanoshells with smooth surfaces have merely demonstrated efficient control of shell thickness and particle size, yet no branch and nanoporous features on the nanoshell have been implemented to date. Herein, we demonstrate the ability to control the roughness and nanoscale porosity of gold nanoshells by using redox-active polymer poly(vinylphenol)-b-(styrene) nanoparticles as reducing agent and template. The porosity and size of the branches on this branched nanoporous gold nanoshell (BAuNSP) material can be facilely adjusted by control of the reaction speed or the reaction time between the redox-active polymer nanoparticles and gold ions (Au(3+))...
June 15, 2017: ACS Nano
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