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https://www.readbyqxmd.com/read/28916989/comparison-of-the-recovery-profile-between-desflurane-and-sevoflurane-in-patients-undergoing-bariatric-surgery-a-meta-analysis-of-randomized-controlled-trials
#1
REVIEW
Preet Mohinder Singh, Anuradha Borle, Jason McGavin, Anjan Trikha, Ashish Sinha
Early and clear recovery from anesthesia is the crux for preventing perioperative complications in the obese undergoing bariatric surgery. Volatile inhalation agents by virtue of high lipid solubility are expected to produce residual anesthetic effects. Prospective randomized trials comparing desflurane and sevoflurane used for anesthesia maintenance (electroencephalograph guided) during bariatric surgery published till 1st of July 2017 were searched in the medical database. Comparisons were made for surrogate markers of recovery from anesthesia that included time to eye-opening (TEo), time to tracheal-extubation (TEx), and Aldrete scores on immediately shifting to recovery (Ald-I)...
September 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28899502/melaleuca-quinquenervia-essential-oil-inhibits-%C3%AE-melanocyte-stimulating-hormone-induced-melanin-production-and-oxidative-stress-in-b16-melanoma-cells
#2
Wen-Wan Chao, Chia-Chi Su, Hsin-Yi Peng, Su-Tze Chou
BACKGROUND: Essential oils are odorous, volatile products of plant secondary metabolism, which are found in many leaves and stems. They show important biological activities, which account for the development of aromatherapy used in complementary and alternative medicine. The essential oil extracted from Melaleuca quinquenervia (Cav.) S.T. Blake (paperbark) (MQ-EO) has various functional properties. PURPOSE: The aim of this study is to investigate the chemical composition of MQ-EO by using gas chromatography-mass spectrometry (GC-MS) and evaluate its tyrosinase inhibitory activity...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28893018/changes-in-gas-composition-during-low-flow-anaesthesia-without-nitrous-oxide
#3
Ranjana Venkatachalapathy, Anusha Cherian, Sakthirajan Panneerselvam
INTRODUCTION: Low flow anaesthesia utilising Oxygen (O2) and Nitrous Oxide (N2O) mixture carries a risk of hypoxia, but avoiding N2O results in increased analgesic and volatile anaesthetic agent requirement. AIM: This study attempted to find the lowest Fraction of inspired Oxygen (FiO2) levels achieved with a mixture of 300 mL/min each of O2 and medical air over two hours and to compare the overall analgesic requirement and cost while using similar flows of N2O and O2, respectively...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890716/mining-the-volatilomes-of-plant-associated-microbiota-for-new-biocontrol-solutions
#4
REVIEW
Aurélien Bailly, Laure Weisskopf
Microbial lifeforms associated with land plants represent a rich source for crop growth- and health-promoting microorganisms and biocontrol agents. Volatile organic compounds (VOCs) produced by the plant microbiota have been demonstrated to elicit plant defenses and inhibit the growth and development of numerous plant pathogens. Therefore, these molecules are prospective alternatives to synthetic pesticides and the determination of their bioactivities against plant threats could contribute to the development of control strategies for sustainable agriculture...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28876901/flexible-graphene-based-wearable-gas-and-chemical-sensors
#5
Eric Singh, M Meyyappan, Hari S Nalwa
Wearable electronics is expected to be one of the most active research areas in the next decade, therefore, nanomaterials possessing high carrier mobility, optical transparency, mechanical robustness and flexibility, light-weight, and environmental stability will be in immense demand. Graphene is one of the nanomaterials that fulfill all these requirements, along with other inherently unique properties and convenience to fabricate into different morphological nanostructures, from atomically thin single layers to nanoribbons...
September 6, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28865274/thermal-effects-on-arsenic-emissions-during-coal-combustion-process
#6
REVIEW
Weiqiang Zhang, Qiang Sun, Xiuyuan Yang
In this study, the rate of emission of arsenic during the burning process of different kinds of coal is examined in order to study the volatile characteristics of arsenic during coal combustion which have negative effects on the ecological environment and human health. The results show that the emission rate of arsenic gradually increases with increased burning temperature, with a threshold of approximately 700°C to 800°C in the process of temperature increase. Then, the relationships among the arsenic emission rate and combustion environment, original arsenic content, combustion time, burning temperature, air flow and amount of arsenic fixing agent are discussed, and it is found that except for the original arsenic content, the rest of the factors have a nonlinear relationship with the emission rate of arsenic...
August 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28861655/inhaled-anesthetic-agent-sedation-in-the-icu-and-trace-gas-concentrations-a-review
#7
REVIEW
Jennifer Herzog-Niescery, Hans-Martin Seipp, Thomas Peter Weber, Martin Bellgardt
There is a growing interest in the use of volatile anesthetics for inhalational sedation of adult critically ill patients in the ICU. Its safety and efficacy has been demonstrated in various studies and technical equipment such as the anaesthetic conserving device (AnaConDa™; Sedana Medical, Uppsala, Sweden) or the MIRUS™ system (Pall Medical, Dreieich, Germany) have significantly simplified the application of volatile anesthetics in the ICU. However, the personnel's exposure to waste anesthetic gas during daily work is possibly disadvantageous, because there is still uncertainty about potential health risks...
August 31, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28857808/effect-of-bronchoconstriction-induced-ventilation-perfusion-mismatch-on-uptake-and-elimination-of-isoflurane-and-desflurane
#8
Moritz Kretzschmar, Alf Kozian, James E Baumgardner, Joao Batista Borges, Göran Hedenstierna, Anders Larsson, Thomas Hachenberg, Thomas Schilling
BACKGROUND: Increasing numbers of patients with obstructive lung diseases need anesthesia for surgery. These conditions are associated with pulmonary ventilation/perfusion (VA/Q) mismatch affecting kinetics of volatile anesthetics. Pure shunt might delay uptake of less soluble anesthetic agents but other forms of VA/Q scatter have not yet been examined. Volatile anesthetics with higher blood solubility would be less affected by VA/Q mismatch. We therefore compared uptake and elimination of higher soluble isoflurane and less soluble desflurane in a piglet model...
August 30, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28857500/chemical-composition-enantiomeric-analysis-aeda-sensorial-evaluation-and-antifungal-activity-of-the-essential-oil-from-the-ecuadorian-plant-lepechinia-mutica-benth-lamiaceae
#9
Jorge Ramírez, Gianluca Gilardoni, Miriam Jácome, José Montesinos, Marinella Rodolfi, Maria Lidia Guglielminetti, Cecila Cagliero, Carlo Bicchi, Giovanni Vidari
This study describes the GC-FID, GC-MS, GC-O, and enantioselective GC analysis of the essential oil hydrodistilled from leaves of Lepechinica mutica (Lamiaceae), collected in Ecuador. GC-FID and GC-MS analyses allowed the characterization and quantification of 79 components, representing 97.3% of the total sample. Sesquiterpene hydrocarbons (38.50%) and monoterpene hydrocarbons (30.59%) were found to be the most abundant volatiles, while oxygenated sesquiterpenes (16.20%) and oxygenated monoterpenes (2.10%) were the minor components...
August 30, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28852982/toxicological-effects-of-chemical-constituents-from-piper-against-the-environmental-burden-aedes-aegypti-liston-and-their-impact-on-non-target-toxicity-evaluation-against-biomonitoring-aquatic-insects
#10
Prabhakaran Vasantha-Srinivasan, Annamalai Thanigaivel, Edward-Sam Edwin, Athirstam Ponsankar, Sengottayan Senthil-Nathan, Selvaraj Selin-Rani, Kandaswamy Kalaivani, Wayne B Hunter, Veeramuthu Duraipandiyan, Naif Abdullah Al-Dhabi
Dengue is the most rapidly spreading mosquito-borne viral disease in the world. The mosquito, Aedes aegypti, also spreads Yellow fever, Chikungunya, and Zika virus. As the primary vector for dengue, Ae. aegypti now occurs in over 20 countries and is a serious concern with reports of increasing insecticide resistance. Developing new treatments to manage mosquitoes are needed. Formulation of crude volatile oil from Piper betle leaves (Pb-CVO) was evaluated as a potential treatment which showed larvicidal, ovipositional, and repellency effects...
August 29, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28851585/development-of-a-sensitive-generic-and-easy-to-use-organophosphate-skin-disclosure-kit
#11
Franz Worek, Andreas Wosar, Madlen Baumann, Horst Thiermann, Timo Wille
Various organophosphorus compounds (OP), primarily the nerve agent VX and other V-agents, are highly toxic to humans after skin exposure. Percutaneous exposure by such OP results in a delayed onset of toxic signs which enables the initiation of specific countermeasures if contamination is detected rapidly. Presently available mobile detection systems can hardly detect skin exposure by low volatile OP. In order to fill this gap an OP skin disclosure kit was developed which should fulfill different requirements, i...
August 26, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28845130/anaesthetic-challenges-in-cancer-patients-current-therapies-and-pain-management
#12
Jūratė Gudaitytė, Dominykas Dvylys, Indrė Šimeliūnaitė
THE OBJECTIVE: The aim is to present the major effects of cancer treatment (chemotherapy, radiotherapy, surgery) that the anaesthesiologist should consider preoperatively, and to review techniques of the analgesic management of the disease. MATERIALS AND METHODS: To summarize the major challenges that cancer patients present for the anaesthesiologists, a literature review was conducted. Articles presenting evidence or reviewing the possible effects of anaesthetics on cancer cells were also included...
2017: Acta medica Lituanica
https://www.readbyqxmd.com/read/28832896/end-tidal-control-vs-manually-controlled-minimal-flow-anesthesia-a-prospective-comparative-trial
#13
A J Wetz, M M Mueller, K Walliser, C Foest, S Wand, I F Brandes, R M Waeschle, M Bauer
BACKGROUND: To ensure safe general anesthesia, manually controlled anesthesia requires constant monitoring and numerous manual adjustments of the gas dosage, especially for low- and minimal-flow anesthesia. Oxygen flow-rate and administration of volatile anesthetics can also be controlled automatically by anesthesia machines using the end-tidal control technique, which ensures constant end-tidal concentrations of oxygen and anesthetic gas via feedback and continuous adjustment mechanisms...
August 22, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28822613/biomass-ash-reutilisation-as-an-additive-in-the-composting-process-of-organic-fraction-of-municipal-solid-waste
#14
Carla Asquer, Giovanna Cappai, Giorgia De Gioannis, Aldo Muntoni, Martina Piredda, Daniela Spiga
In this work the effects of selected types of biomass ash on the composting process and final product quality were studied by conducting a 96-day long experiment where the source separated organic fraction of municipal waste, mixed with wood prunings that served as bulking agent, was added with 0%, 2%, 4% and 8% wt/wt of biomass ash. The evolution over time of the main process parameters was observed, and the final composts were characterised. On the basis of the results, both the composting process and the quality of the final product were improved by ash addition...
August 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28821162/oral-administration-of-thymoquinone-mitigates-the-effect-of-cisplatin-on-brush-border-membrane-enzymes-energy-metabolism-and-antioxidant-system-in-rat-intestine
#15
Faaiza Shahid, Zeba Farooqui, Subuhi Abidi, Iqbal Parwez, Farah Khan
Cisplatin (CP) is a widely used chemotherapeutic agent that elicits severe gastrointestinal toxicity. Nigella sativa, a member of family Ranunculaceae, is one of the most revered medicinal plant known for its numerous health benefits. Thymoquinone (TQ), a major bioactive component derived from the volatile oil of Nigella sativa seeds, has been shown to improve gastrointestinal functions in animal models of acute gastric/intestinal injury. In view of this, the aim of the present study was to investigate the protective effect of TQ on CP induced toxicity in rat intestine and to elucidate the mechanism underlying these effects...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28804487/the-response-of-phagocytes-to-indoor-air-toxicity
#16
Liisa K Vilén, Janne Atosuo, Esa-Matti Lilius
This perspective presents a viewpoint on potential methods assessing toxicity of indoor air. Until recently, the major techniques to document moldy environment have been microbial isolation using conventional culture techniques for fungi and bacteria as well as in some instances polymerase chain reaction to detect microbial genetic components. However, it has become increasingly evident that bacterial and fungal toxins, their metabolic products, and volatile organic substances emitted from corrupted constructions are the major health risks...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28800826/effect-of-thyme-essential-oil-and-lactococcus-lactis-cbm21-on-the-microbiota-composition-and-quality-of-minimally-processed-lamb-s-lettuce
#17
Lorenzo Siroli, Francesca Patrignani, Diana I Serrazanetti, Pamela Vernocchi, Federica Del Chierico, Alessandra Russo, Sandra Torriani, Lorenza Putignani, Fausto Gardini, Rosalba Lanciotti
The main aim of this work was to evaluate, at pilot scale in an industrial environment, the effects of the biocontrol agent Lactococcus lactis CBM21 and thyme essential oil compared to chlorine, used in the washing step of fresh-cut lamb's lettuce, on the microbiota and its changes in relation to the time of storage. The modification of the microbial population was studied through pyrosequencing in addition to the traditional plate counts. In addition, the volatile molecule and sensory profiles were evaluated during the storage...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28798756/aerial-warfare-a-volatile-dialogue-between-the-plant-pathogen-verticillium-longisporum-and-its-antagonist-paenibacillus-polymyxa
#18
Daria Rybakova, Ute Rack-Wetzlinger, Tomislav Cernava, Angelika Schaefer, Maria Schmuck, Gabriele Berg
Verticillium wilt caused by Verticillium spp. results in severe yield losses in a broad range of crops. Verticillium outbreaks are challenging to control, and exacerbated by increases in soil temperatures and drought associated with global warming. Employing natural antagonists as biocontrol agents offers a promising approach to addressing this challenge. Paenibacillus polymyxa Sb3-1 was proven to reduce the growth of Verticillium longisporum during in vitro experiments and was shown to promote the growth of oilseed rape seedlings infested with V...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28792108/comprehensive-headspace-gas-chromatographic-analysis-of-denaturants-in-denatured-ethanol
#19
Niels van Boxtel, Kris Wolfs, Marta Guillén Palacín, Ann Van Schepdael, Erwin Adams
To discourage consumption, ethanol is often denatured using both volatile (e.g. methyl ethyl ketone and isopropanol) and non-volatile (e.g. denatonium benzoate) chemical substances. As a result, the analysis of denatured ethanol samples is usually performed by multiple techniques such as gas chromatography for the volatile denaturants and liquid chromatography for the non-volatile ones. However, the need for multiple techniques increases the cost of analysis and forms a severe obstruction for on-site product control...
August 9, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28783070/the-chemical-compositions-of-the-volatile-oils-of-garlic-allium-sativum-and-wild-garlic-allium-vineale
#20
Prabodh Satyal, Jonathan D Craft, Noura S Dosoky, William N Setzer
Garlic, Alliumsativum, is broadly used around the world for its numerous culinary and medicinal uses. Wild garlic, Allium vineale, has been used as a substitute for garlic, both in food as well as in herbal medicine. The present study investigated the chemical compositions of A. sativum and A. vineale essential oils. The essential oils from the bulbs of A. sativum, cultivated in Spain, were obtained by three different methods: laboratory hydrodistillation, industrial hydrodistillation, and industrial steam distillation...
August 5, 2017: Foods (Basel, Switzerland)
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