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https://www.readbyqxmd.com/read/28811144/microwave-induced-plasma-for-solid-fuels-and-waste-processing-a-review-on-affecting-factors-and-performance-criteria
#1
REVIEW
Guan Sem Ho, Hasan Mohd Faizal, Farid Nasir Ani
High temperature thermal plasma has a major drawback which consumes high energy. Therefore, non-thermal plasma which uses comparatively lower energy, for instance, microwave plasma is more attractive to be applied in gasification process. Microwave-induced plasma gasification also carries the advantages in terms of simplicity, compactness, lightweight, uniform heating and the ability to operate under atmospheric pressure that gains attention from researchers. The present paper synthesizes the current knowledge available for microwave plasma gasification on solid fuels and waste, specifically on affecting parameters and their performance...
August 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28808493/pulmonary-consequences-of-hypothyroidism
#2
Samiaa Hamdy Sadek, Walaa Anwar Khalifa, Ahmad Metwally Azoz
BACKGROUND: Although hypothyroidism has an insidious onset and relatively asymptomatic, exertional dyspnea and fatigue can be the presenting complaints. OBJECTIVES: The aim is to assess functional lung impairment in hypothyroid patients both at rest and during exercise. METHODS: A case-control study was carried out on 42 patients with newly diagnosed hypothyroidism and 12 control subjects. Hypothyroidism was diagnosed based on high value of thyroid stimulating hormone (TSH) ≥6 μIU/ml, and low value of free thyroxin (FT4) ≤0...
July 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28806029/atrial-fibrillation-induced-by-carbon-monoxide-poisoning-and-successful-treatment-with-hyperbaric-oxygen
#3
Maheedhar Gedela, Nathan Y Weltman, Naga Sushma Chavvakula, Paul L Carpenter, Tamera Sturm
Carbon monoxide (CO) intoxication is one of the major public health hazards which may go unnoticed as this is a colorless, odorless and tasteless gas. The manifestations of the CO poisoning are far-reaching. Although CO affects almost every organ in the body, cerebral and myocardial involvement are predominant due to the hypoxia-induced cellular damage. The mainstay treatment is providing high-flow oxygen and in some instances hyperbaric oxygen therapy. In the literature, there have been few cases of CO poisoning-induced atrial fibrillation (AF) reported...
July 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28804534/mtor-inhibition-rejuvenates-the-aging-gingival-fibroblasts-through-alleviating-oxidative-stress
#4
Yiru Xia, Mengjun Sun, Yufeng Xie, Rong Shu
The aging periodontium may be vulnerable to periodontal pathogens and poor response to inflammation and susceptible to tumorigenesis. Human gingival fibroblasts (hGFs) through continuously replicative culture served as an in vitro surrogate for aging. To investigate the effects of the mechanistic target of rapamycin (mTOR) inhibition on the aging gingiva, we stimulated the high-passage hGFs with rapamycin (20 nmol/L) for 3 days and 30 days. The cellular and biological changes were examined by immunofluorescence, real-time PCR, ELISA, Western blotting, and flow cytometry...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28800409/cytotoxic-effects-of-the-proton-pump-inhibitor-omeprazole-on-the-non-target-marine-microalga-tetraselmis-suecica
#5
Marta Seoane, Marta Esperanza, Ángeles Cid
Omeprazole (OMP) is one of the most commonly used drugs for the treatment of gastro-intestinal disorders. Although it is daily consumed in high quantities and commonly detected in waters worldwide, relatively little is known about its ecotoxicity. The aim of this study was to evaluate the potential acute toxicity of increasing concentrations of OMP on the marine microalga Tetraselmis suecica analysing several cytotoxicity biomarkers by flow cytometry after 24h of exposure. Results showed that OMP caused a decrease in growth and autofluorescence, an increase in cellular volume and intracellular complexity, hyperpolarization of cytoplasmic and mitochondrial membranes and intracellular acidification...
August 2, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28798193/the-role-of-vascular-endothelial-growth-factor-b-in-metabolic-homeostasis-current-evidence
#6
Mohammad Ishraq Zafar, Juan Zheng, Wen Kong, Xiaofeng Ye, Luoning Gou, Anita Regmi, Lu-Lu Chen
It has been shown that adipose tissue and skeletal muscles of lean individuals respond to meal-induced hyperinsulinemia by increases in perfusion, the effect not observed in patients with metabolic syndrome. In conditions of hyperglycaemia and hypertriglyceridemia, this insufficient vascularization leads to the liberation of reactive oxygen species, and disruption of nitric oxide synthesis and endothelial signalling responsible for the uptake of circulating fatty acids, whose accumulation in skeletal muscles and adipose tissue is widely associated with impairment of insulin signalling...
August 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28794144/nasal-high-flow-therapy-a-novel-treatment-rather-than-a-more-expensive-oxygen-device
#7
REVIEW
Eleni Ischaki, Ioannis Pantazopoulos, Spyros Zakynthinos
Nasal high flow is a promising novel oxygen delivery device, whose mechanisms of action offer some beneficial effects over conventional oxygen systems. The administration of a high flow of heated and humidified gas mixture promotes higher and more stable inspiratory oxygen fraction values, decreases anatomical dead space and generates a positive airway pressure that can reduce the work of breathing and enhance patient comfort and tolerance. Nasal high flow has been used as a prophylactic tool or as a treatment device mostly in patients with acute hypoxaemic respiratory failure, with the majority of studies showing positive results...
September 30, 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/28791491/retinal-vegf-levels-correlate-with-ocular-circulation-measured-by-a-laser-speckle-micro-system-in-an-oxygen-induced-retinopathy-rat-model
#8
Tadashi Matsumoto, Yuta Saito, Takashi Itokawa, Tomoaki Shiba, Mari S Oba, Haruo Takahashi, Yuichi Hori
PURPOSE: We used a Laser speckle flowgraphy (LSFG)-micro system to examine the relationship between ocular blood flow and retinal vascular endothelial growth factor (VEGF) at retinopathy onset in oxygen-induced ischemic retinopathy (OIR) model rats. METHODS: Sixteen 50/10 OIR rats were compared with 17 control rats reared in room air. In postnatal day 14 (P14) and P18 rats, we measured and analyzed the left eye's mean blur rate (MBR) by setting a rubber band on the optic nerve head center, using the LSFG-Micro...
August 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28790819/kalopanacis-cortex-extract-capped-gold-nanoparticles-activate-nrf2-signaling-and-ameliorate-damage-in-human-neuronal-sh-sy5y-cells-exposed-to-oxygen-glucose-deprivation-and-reoxygenation
#9
Sun Young Park, Seon Yeong Chae, Jin Oh Park, Kyu Jin Lee, Geuntae Park
Recently, environment-friendly synthesis of gold nanoparticles (GNPs) has been extensively explored by biologists and chemists. However, significant research is still required to determine whether "eco-friendly" GNPs are beneficial to human health and to elucidate the molecular mechanisms of their effects on human cells. We used human neuronal SH-SY5Y cells to show that treatment with Kalopanacis Cortex extract-capped GNPs (KC-GNs), prepared via an eco-friendly, fast, one-pot synthetic route, protected neuronal cells against oxygen-glucose deprivation/reoxygenation (OGD/R)-induced damage...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28780470/acrylamide-induces-immunotoxicity-through-reactive-oxygen-species-production-and-caspase-dependent-apoptosis-in-mice-splenocytes-via-the-mitochondria-dependent-signaling-pathways
#10
Ehsan Zamani, Fatemeh Shaki, Saeid AbedianKenari, Mohammad Shokrzadeh
INTRODUCTION: Acrylamide (AA), a well-known food neo-contamination, can be produced during food preparing at high temperature. The immunotoxicity of AA have been revealed in the experimental animals. In this study, we explored the molecular mechanism responsible for the immunotoxicity of AA. METHODS: The mice splenocytes exposed to AA concentrations (0,5,10 and 25 mM) and apoptosis cell death was measured through Annexin V/Propidium Iodide staining by flow cytometry method...
August 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28780231/the-effect-of-high-flow-nasal-cannula-in-reducing-the-mortality-and-the-rate-of-endotracheal-intubation-when-used-before-mechanical-ventilation-compared-with-conventional-oxygen-therapy-and-noninvasive-positive-pressure-ventilation-a-systematic-review-and-meta
#11
Yue-Nan Ni, Jian Luo, He Yu, Dan Liu, Bin-Miao Liang, Zong-An Liang
BACKGROUND: The effects of high flow nasal cannula (HFNC) on adult patients when used before mechanical ventilation (MV) are unclear. We aimed to determine the effectiveness of HFNC when used before MV by comparison to conventional oxygen therapy (COT) and noninvasive positive pressure ventilation (NIPPV). METHODS: The Pubmed, Embase, Medline, Cochrane Central Register of Controlled Trials (CENTRAL) as well as the Information Sciences Institute (ISI) Web of Science were searched for all the controlled studies that compared HFNC with NIPPV and COT when used before MV in adult patients...
July 28, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28778000/non-proinflammatory-and-responsive-nanoplatforms-for-targeted-treatment-of-atherosclerosis
#12
Yin Dou, Yue Chen, Xiangjun Zhang, Xiaoqiu Xu, Yidan Chen, Jiawei Guo, Dinglin Zhang, Ruibing Wang, Xiaohui Li, Jianxiang Zhang
Atherosclerosis is the leading cause of many fatal cardiovascular and cerebrovascular diseases. Whereas nanomedicines are promising for targeted therapy of atherosclerosis, great challenges remain in development of effective, safe, and translational nanotherapies for its treatment. Herein we hypothesize that non-proinflammatory nanomaterials sensitive to low pH or high reactive oxygen species (ROS) may serve as effective platforms for triggerable delivery of anti-atherosclerotic therapeutics in cellular and tissue microenvironments of inflammation...
July 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/28777977/relationship-between-reactive-oxygen-species-and-water-soluble-organic-compounds-time-resolved-benzene-carboxylic-acids-measurement-in-the-coastal-area-during-the-korus-aq-campaign
#13
Min-Suk Bae, James J Schauer, Taehyoung Lee, Ju-Hee Jeong, Yoo-Keun Kim, Chul-Un Ro, Sang-Keun Song, Zang-Ho Shon
This study investigated the relationship between water-soluble organic compounds of ambient particulate matter (PM) and cellular redox activity collected from May 28 to June 20 of 2016 at the west coastal site in the Republic of Korea during the KORea-US Air Quality (KORUS-AQ) campaign. Automatic four-hour integrated samples operated at a flow rate of 92 L per minute for the analysis of organic carbon (OC), water-soluble organic carbon (WSOC), elemental carbon (EC), water-soluble ions (WSIs), and benzene carboxylic acids (BCAs) were collected on a 47 mm quartz fiber filter...
August 1, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28777517/changes-in-pulmonary-function-in-hyperbaric-chamber-inside-attendants-a-case-control-study
#14
Adem Ozdemir, Gunalp Uzun, Turker Turker, Turker Turker, Ergun Ucar, Senol Yildiz
BACKGROUND: Inside attendants (IAs) [are] exposed to high pressure during hyperbaric oxygen (HBO₂) therapy. The aim of this study was to evaluate the alterations of pulmonary functions in IAs over time. METHODS: IAs in our hyperbaric center constituted the IA group (n=11). A sex- and age-matched control group (n=15) was constituted from hospital staff who had not dived or been exposed to hyperbaric environments before. We measured the respiratory function of all subjects at two time points: 1) at the start of the study; and 2) 12 months after the first measurement...
November 2016: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28777138/high-serum-bilirubin-levels-nt-pro-bnp-and-lactate-predict-mortality-in-long-term-severely-ill-respiratory-extracorporeal-membrane-oxygenation-patients
#15
Franziska Kaestner, Daniel Rapp, Franziska C Trudzinski, Nicole Olewczynska, Stefan Wagenpfeil, Frank Langer, Monika Flaig, Heinrike Wilkens, Robert Bals, Matthias Klingele, Christian Lensch, Sebastian Fähndrich, Philipp M Lepper
Mortality in patients treated with extracorporeal membrane oxygenation (ECMO) is high. Therefore, it is crucial to better understand conditions that are associated with mortality in ECMO patients. In this retrospective analysis, we observed 51 patients treated with high-flow ECMO in 2013 and 2014 at our center. We recorded laboratory values and intensive care procedures. The hypothesis of bilirubin being a predictor of mortality during ECMO treatment was initially addressed. Therefore, laboratory values were obtained before initiation and at the time of highest bilirubin throughout the procedure...
August 2, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28773106/amino-acids-aided-sintering-for-the-formation-of-highly-porous-feal-intermetallic-alloys
#16
Krzysztof Karczewski, Wojciech J Stepniowski, Marco Salerno
Fabrication of metallic foams by sintering metal powders mixed with thermally degradable compounds is of interest for numerous applications. Compounds releasing gaseous nitrogen, minimizing interactions between the formed gases and metallic foam by diluting other combustion products, were applied. Cysteine and phenylalanine, were used as gas releasing agents during the sintering of elemental Fe and Al powders in order to obtain metallic foams. Characterization was carried out by optical microscopy with image analysis, scanning electron microscopy with energy dispersive spectroscopy, and gas permeability tests...
July 4, 2017: Materials
https://www.readbyqxmd.com/read/28771598/impacts-of-leachates-from-livestock-carcass-burial-and-manure-heap-sites-on-groundwater-geochemistry-and-microbial-community-structure
#17
Man Jae Kwon, Seong-Taek Yun, Baknoon Ham, Jeong-Ho Lee, Jun-Seop Oh, Weon-Wha Jheong
We investigated the impacts of leachates from a swine carcass burial site and a cow manure heap on the geochemical and microbiological properties of agricultural water samples, including leachate, groundwater from monitoring wells and background wells, and stream water. The leachate from the livestock burial site showed extremely high electrical conductivity, turbidity, and major ion concentrations, but low redox potential and dissolved oxygen levels. The groundwater in the monitoring wells adjacent to both sites showed severe contamination from the leachate, as indicated by the increases in EC, turbidity, Cl-, and SO42-...
2017: PloS One
https://www.readbyqxmd.com/read/28771211/the-fetus-can-teach-us-oxygen-and-the-pulmonary-vasculature
#18
REVIEW
Payam Vali, Satyan Lakshminrusimha
Neonates suffering from pulmonary hypertension of the newborn (PPHN) continue to represent an important proportion of patients requiring intensive neonatal care, and have an increased risk of morbidity and mortality. The human fetus has evolved to maintain a high pulmonary vascular resistance (PVR) in utero to allow the majority of the fetal circulation to bypass the lungs, which do not participate in gas exchange, towards the low resistance placenta. At birth, oxygen plays a major role in decreasing PVR to enhance pulmonary blood flow and establish the lungs as the organ of gas exchange...
August 3, 2017: Children
https://www.readbyqxmd.com/read/28769072/post-conventional-moral-reasoning-is-associated-with-increased-ventral-striatal-activity-at-rest-and-during-task
#19
Zhuo Fang, Wi Hoon Jung, Marc Korczykowski, Lijuan Luo, Kristin Prehn, Sihua Xu, John A Detre, Joseph W Kable, Diana C Robertson, Hengyi Rao
People vary considerably in moral reasoning. According to Kohlberg's theory, individuals who reach the highest level of post-conventional moral reasoning judge moral issues based on deeper principles and shared ideals rather than self-interest or adherence to laws and rules. Recent research has suggested the involvement of the brain's frontostriatal reward system in moral judgments and prosocial behaviors. However, it remains unknown whether moral reasoning level is associated with differences in reward system function...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28768174/loss-of-brain-aerobic-glycolysis-in-normal-human-aging
#20
Manu S Goyal, Andrei G Vlassenko, Tyler M Blazey, Yi Su, Lars E Couture, Tony J Durbin, Randall J Bateman, Tammie L-S Benzinger, John C Morris, Marcus E Raichle
The normal aging human brain experiences global decreases in metabolism, but whether this affects the topography of brain metabolism is unknown. Here we describe PET-based measurements of brain glucose uptake, oxygen utilization, and blood flow in cognitively normal adults from 20 to 82 years of age. Age-related decreases in brain glucose uptake exceed that of oxygen use, resulting in loss of brain aerobic glycolysis (AG). Whereas the topographies of total brain glucose uptake, oxygen utilization, and blood flow remain largely stable with age, brain AG topography changes significantly...
August 1, 2017: Cell Metabolism
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