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https://www.readbyqxmd.com/read/28445377/first-lower-two-thirds-osteomyocutaneous-facial-allograft-perfused-by-a-unilateral-facial-artery-outcomes-and-vascularization-at-1-year-after-transplantation
#1
Sebastian Fischer, Thomas C Lee, Nicco Krezdorn, Muayyad Alhefzi, Maximilian Kueckelhaus, Ericka M Bueno, Bohdan Pomahac
BACKGROUND: Facial allotransplantation provides a unique opportunity to restore facial form and function in severely disfigured patients. Using a single unilateral facial artery for vascularization can significantly reduce surgical duration and thus facilitate the practice of face transplantation. METHODS: A 33-year-old man with a history of high-energy ballistic trauma received a facial allograft comprising the lower two-thirds of the face, including maxilla and mandible...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28443894/taste-and-smell-in-aquatic-and-terrestrial-environments
#2
REVIEW
E Mollo, M J Garson, G Polese, P Amodeo, M T Ghiselin
Covering: up to 2017The review summarizes results up to 2017 on chemosensory cues occurring in both aquatic and terrestrial environments. The chemicals are grouped by their physicochemical properties to compare their potential mobility in the different media. In contrast to what is widely asserted in the literature, the report emphasizes that living organisms encounter and sense molecules of various degrees of solubility and volatility both on land and in aquatic environments. The picture that emerges from the review suggests a substantial revision of the traditional definitions of the chemical senses based on their spatial range, which is currently orienting the literature on chemosensory signaling, in favor of a new vision based on the natural products that are the actual mediators of the chemosensory perceptions...
April 26, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28443629/differences-in-peripheral-sensory-input-to-the-olfactory-bulb-between-male-and-female-mice
#3
Marley D Kass, Lindsey A Czarnecki, Andrew H Moberly, John P McGann
Female mammals generally have a superior sense of smell than males, but the biological basis of this difference is unknown. Here, we demonstrate sexually dimorphic neural coding of odorants by olfactory sensory neurons (OSNs), primary sensory neurons that physically contact odor molecules in the nose and provide the initial sensory input to the brain's olfactory bulb. We performed in vivo optical neurophysiology to visualize odorant-evoked OSN synaptic output into olfactory bub glomeruli in unmanipulated (gonad-intact) adult mice from both sexes, and found that in females odorant presentation evoked more rapid OSN signaling over a broader range of OSNs than in males...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28443560/advances-in-nutrition-of-the-newborn-infant
#4
REVIEW
Jane E Harding, Barbara E Cormack, Tanith Alexander, Jane M Alsweiler, Frank H Bloomfield
Nutrition of newborn infants, particularly of those born preterm, has advanced substantially in recent years. Extremely preterm infants have high nutrient demands that are challenging to meet, such that growth faltering is common. Inadequate growth is associated with poor neurodevelopmental outcomes, and although improved early growth is associated with better cognitive outcomes, there might be a trade-off in terms of worse metabolic outcomes, although the contribution of early nutrition to these associations is not established...
April 22, 2017: Lancet
https://www.readbyqxmd.com/read/28440960/is-humidified-better-than-non-humidified-low-flow-oxygen-therapy-a-systematic-review-and-meta-analysis
#5
REVIEW
Zunjia Wen, Wenting Wang, Haiying Zhang, Chao Wu, Jianping Ding, Meifen Shen
AIMS: To determine the effects of low-flow oxygen therapy with humidified or non-humidified oxygen in adult patients. BACKGROUND: Although non-humidified oxygen in low-flow oxygen therapy is recommended by many guidelines, humidifying oxygen regardless of oxygen flow has been routinely performed in China and Japan and further studies are needed to evaluate the evidence. DESIGN: A systematic review and meta-analysis that comply with the recommendations of the Cochrane Collaboration were conducted...
April 25, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28434212/effects-of-environmental-factors-on-cyanobacterial-production-of-odorous-compounds-geosmin-and-2-methylisoborneol
#6
Hyung-Seok Oh, Chang Soo Lee, Ankita Srivastava, Hee-Mock Oh, Chi-Yong Ahn
Geosmin and 2-methylisoborneol (2-MIB), responsible for earthy or musty smell, are a major concern for safe drinking water supplies. This study investigated the effects of environmental factors on odorous compounds production and cell growth in cyanobacterial strains. Anabaena sp. FACHB-1384, a 2-MIB producer, was sensitive to low temperature (<20°C). However, geosmin producers, Anabaena sp. Chusori and Anabaena sp. NIER, were sensitive to high light intensity (>100 μmol/m²/sec), but not to low temperature...
April 21, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28434127/intranasal-vitamin-a-is-beneficial-in-post-infectious-olfactory-loss
#7
Thomas Hummel, Katherine L Whitcroft, Gina Rueter, Antje Haehner
Vitamin A plays a decisive role in the regeneration of olfactory receptor neurons. In this retrospective study we investigated the effectiveness of topical vitamin A in patients with post-infectious and posttraumatic smell disorders. Retrospective cohort. A total of 170 patients (age range 18-70 years, mean age 52 years) participated. Forty-six patients were treated with smell training only. The remaining 124 patients received smell training and topical vitamin A. Olfactory function was assessed using the Sniffin' Sticks test kit, a validated technique to measure odor thresholds, discrimination and identification...
April 22, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28429461/deodorization-of-arthrospira-platensis-biomass-for-further-scale-up-food-applications
#8
Sara P Cuellar-Bermúdez, Bertha Barba-Davila, Sergio O Serna-Saldivar, Roberto Parra-Saldivar, José Rodriguez-Rodriguez, Sandra Morales-Davila, Koen Goiris, Koenraad Muylaert, Cristina Chuck-Hernández
BACKGROUND: Given the importance of A. platensis as a potential food protein source, we achieve an affordable deodorization process that does not significantly affect the nutritional value of algae biomass. RESULTS: Ethanol, acetone or hexane were used to deodorize algae biomass and then to identify the profile of volatile compounds associated with its distinctive odor. Sensorial characteristics were improved in the biomass cake after the proposed solvent extraction...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28427880/evaluation-of-effective-microorganisms-on-home-scale-organic-waste-composting
#9
Yee Van Fan, Chew Tin Lee, Jiří Jaromír Klemeš, Lee Suan Chua, Mohamad Roji Sarmidi, Chee Woh Leow
Home composting can be an effective way to reduce the volume of municipal solid waste. The aim of this study is to evaluate the effect of Effective Microorganism™ (EM) for the home scale co-composting of food waste, rice bran and dried leaves. A general consensus is lacking regarding the efficiency of inoculation composting. Home scale composting was carried out with and without EM (control) to identify the roles of EM. The composting parameters for both trials showed a similar trend of changes during the decomposition...
April 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28423269/sensing-by-smell-nanoparticle-enzyme-sensors-for-rapid-and-sensitive-detection-of-bacteria-with-olfactory-output
#10
Bradley Duncan, Ngoc D B Le, Colleen Alexander, Akash Gupta, Gulen Yesilbag Tonga, Mahdieh Yazdani, Ryan F Landis, Li-Sheng Wang, Bo Yan, Serdar Burmaoglu, Xiaoning Li, Vincent M Rotello
We present here a highly efficient sensor for bacteria that provides an olfactory output, allowing detection without the use of instrumentation, and with a modality that does not require visual identification. The sensor platform uses nanoparticles to reversibly complex and inhibits lipase. These complexes are disrupted in the presence of bacteria, restoring enzyme activity and generating scent from odorless pro-fragrance substrate molecules. This system provides rapid (15 min) sensing and very high sensitivity (102 cfu/mL) detection of bacteria using the human sense of smell as an output...
April 19, 2017: ACS Nano
https://www.readbyqxmd.com/read/28419366/effect-of-methionine-supplementation-in-chicken-feed-on-the-quality-and-shelf-life-of-fresh-poultry-meat
#11
Antonia Albrecht, Ulrike Herbert, Dennis Miskel, Celine Heinemann, Carina Braun, Sophia Dohlen, Johanna O Zeitz, Klaus Eder, Behnam Saremi, Judith Kreyenschmidt
The aim of this study was to investigate the influence of different methionine sources and concentrations on the quality and spoilage process of broiler meat. The trial was comprised of 7 treatment groups: one basal group (suboptimal in Methionine+Cysteine; i.e., 0.89, 0.74, 0.69% in DM SID Met+Cys in starter, grower, and finisher diets, respectively) and 3 doses (0.10, 0.25, and 0.40%) of either DL-Methionine (DLM) or DL-2-hydroxy-4-methylthio butanoic acid (DL-HMTBA) on an equimolar basis of the DLM-supplemented groups...
April 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28419327/epilepsy-surgeries-requiring-an-operculoinsular-cortectomy-operative-technique-and-results
#12
Alain Bouthillier, Dang Khoa Nguyen
BACKGROUND: Epilepsy surgeries requiring an operculoinsulectomy pose significant difficulties because the perisylvian area is highly vascular, deep, and functional. OBJECTIVE: To report the operative technique and results of epilepsy surgeries requiring an operculoinsular cortectomy at our institution. METHODS: The data of all consecutive patients who had undergone an epilepsy surgery requiring an operculoinsular cortectomy with a minimum follow-up of 1 yr were reviewed...
April 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28414956/geosmin-as-a-source-of-the-earthy-musty-smell-in-fruits-vegetables-and-water-origins-impact-on-foods-and-water-and-review-of-the-removing-techniques
#13
REVIEW
Viacheslav Liato, Mohammed Aïder
The earthy-musty smell produced by Streptomyces sp. is assigned to geosmin and is responsible for the major organoleptic defects found in drinking water, fruits and vegetables such as grapes, mushrooms, carrots, and beet. Geosmin is also found in juices and musts before fermentation and its presence has been associated with partial presence of Botrytis cinerea. It has a variable detection threshold depending on the matrix and the detection level ranges from 5 to 50 ng/L. On the sensory level, very few individuals are immune to geosmin and although the intensity of the defect caused by this molecule decreases rapidly in the nose, a bad taste is very persistent in the mouth...
April 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28414516/effects-of-having-preterm-infants-smell-amniotic-fluid-mother-s-milk-and-mother-s-odor-during-heel-stick-procedure-on-pain-physiological-parameters-and-crying-duration
#14
Dilek Küçük Alemdar, Funda Kardaş Özdemir
OBJECTIVE: The study aims to assess effects of having preterm infants smell amniotic fluid, mother's milk, and mother's odor during heel stick procedure on pain, physiological parameters, and crying duration. MATERIALS AND METHODS: The study was a randomized controlled experimental research. The population of the study was made up of preterm infants receiving treatment and care at a neonatal intensive care unit, where the study was conducted between January 2015 and March 2016...
April 17, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28410055/olfactory-recognition-based-on-eeg-gamma-band-activity
#15
Onder Aydemir
There are various kinds of brain monitoring techniques, including local field potential, near-infrared spectroscopy, magnetic resonance imaging (MRI), positron emission tomography, functional MRI, electroencephalography (EEG), and magnetoencephalography. Among those techniques, EEG is the most widely used one due to its portability, low setup cost, and noninvasiveness. Apart from other advantages, EEG signals also help to evaluate the ability of the smelling organ. In such studies, EEG signals, which are recorded during smelling, are analyzed to determine the subject lacks any smelling ability or to measure the response of the brain...
April 14, 2017: Neural Computation
https://www.readbyqxmd.com/read/28409915/nitrogen-and-phosphorus-harvesting-from-human-urine-using-a-stripping-absorption-and-precipitation-process
#16
Surendra K Pradhan, Anna Mikola, Riku Vahala
Human urine contains significant amounts of N (nitrogen) and P (phosphorus); therefore it has been successfully used as fertilizer in different crops. But the use of urine as fertilizer has several constraints, such as, the high cost of transportation, an unpleasant smell, the risk of pathogens, and pharmaceutical residue. A combined and improved N stripping and P precipitation technique is used in this study. In this technique, Ca(OH)2 is used to increase the pH of urine which converts ammonium into ammonia gas and precipitate P as Ca-P compound...
April 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28409750/clinical-characteristics-of-parkinson-s-disease-developed-from-essential-tremor
#17
Dong-Woo Ryu, Si-Hoon Lee, Yoon-Sang Oh, Jae-Young An, Jeong-Wook Park, In-Uk Song, Kwang-Soo Lee, Joong-Seok Kim
BACKGROUND: Recent genetic and epidemiological studies have shown that there is a link between essential tremor and Parkinson's disease (PD). However, there is a lack of data about the clinical features of PD developed from essential tremor. OBJECTIVE: To explore and describe the clinical characteristics of Parkinson's disease developed from essential tremor (ET-PD). METHODS: Twenty-five ET-PD patients and 124 IPD controls were enrolled according to each criterion...
April 13, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28407003/assessment-of-the-implementation-of-community-led-total-sanitation-hygiene-and-associated-factors-in-diretiyara-district-eastern-ethiopia
#18
Roba Argaw Tessema
Based on the sustainable development goals, the United Nations plans to achieve equitable sanitation and hygiene for all and to end open defecation by 2030. In Ethiopia, 60% to 80% of health problems are due to communicable diseases attributable to unsafe water supply, unhygienic and unsanitary waste management, which are directly linked to the practice of open defecation. This study has aimed at assessing the implementation of community-led total sanitation and hygiene (CLTSH) and associated factors. A community-based cross-sectional study design involving 420 of the 7,225 households found in Diretiyara district was conducted in June 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28404773/not-equal-in-the-face-of-habitat-change-closely-related-fishes-differ-in-their-ability-to-use-predation-related-information-in-degraded-coral
#19
Maud C O Ferrari, Mark I McCormick, Bridie J M Allan, Douglas P Chivers
Coral reefs are biodiversity hotpots that are under significant threat due to the degradation and death of hard corals. When obligate coral-dwelling species die, the remaining species must either move or adjust to the altered conditions. Our goal was to investigate the effect of coral degradation on the ability of coral reef fishes to assess their risk of predation using alarm cues from injured conspecifics. Here, we tested the ability of six closely related species of juvenile damselfish (Pomacentridae) to respond to risk cues in both live coral or dead-degraded coral environments...
April 12, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28401289/characterization-of-odorants-in-inflatable-aquatic-toys-and-swimming-learning-devices-which-substances-are-causative-for-the-characteristic-odor-and-potentially-harmful
#20
Christoph Wiedmer, Cristina Velasco-Schön, Andrea Buettner
Based on the observation of intense and offensive smells in the product group of aquatic toys, four representative products were exemplarily chosen and sensorially characterized by an expert panel. Panellists reported mostly almond- and rubber-like notes for three of the four samples, whereas the smell of the fourth sample was dominated by organic solvent-associated notes such as "nail polish-like." To elucidate the molecular reasons of these smells, we isolated the volatile fraction of the product by solvent extraction and high vacuum distillation, and identified the main odorants by aroma extract dilution analysis (AEDA), followed by one- and two-dimensional gas chromatography, with parallel mass spectrometric and olfactometric detection...
April 12, 2017: Analytical and Bioanalytical Chemistry
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