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https://www.readbyqxmd.com/read/28319260/the-second-time-flap-from-the-previously-used-anterior-thigh-donor-site-for-head-and-neck-microsurgical-reconstruction
#1
Nidal Farhan Al Deek, Chun-Ta Liao, Shiang-Fu Huang, Chung-Jan Kan, Kai-Ping Chang, Ku-Hao Fang, Chung-Kan Tsao
BACKGROUND: Multiple free tissue transfer from the same donor site is not well described for microsurgical head and neck reconstruction. METHODS: Between (8/2011 and 11/2012), 103 patients received 103 free ALT flaps for head and neck reconstruction; flaps were called first-time ALT flaps. Intra-operative findings were used to assess the presence of a favorable anatomy for a future second flap from the same donor site. And, between 9/2009 and 12/2013, second-time flaps from previously used anterior thighs were attempted either freely or guided by the intra-operative data from the previous surgery...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28302559/in-vitro-monoamine-oxidase-inhibition-potential-of-alpha-methyltryptamine-analog-new-psychoactive-substances-for-assessing-possible-toxic-risks
#2
Lea Wagmann, Simon D Brandt, Pierce V Kavanagh, Hans H Maurer, Markus R Meyer
Tryptamines have emerged as new psychoactive substances (NPS), which are distributed and consumed recreationally without preclinical studies or safety tests. Within the alpha-methylated tryptamines, some of the psychoactive effects of the prototypical alpha-methyltryptamine (AMT) have been described decades ago and a contributing factor of its acute toxicity appears to involve the inhibition of monoamine oxidase (MAO). However, detailed information about analogs is scarce. Therefore, thirteen AMT analogs were investigated for their potential to inhibit MAO...
March 13, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28290286/modelling-the-cooking-doneness-via-integrating-sensory-evaluation-and-kinetics
#3
Jingpeng Li, Li Deng, Zhengyu Jin, Yong Yan
The aim of the current work was to develop a novel method to model and quantitatively determine cooking doneness via integrating sensory evaluation and kinetics based on the maturity value (M value) which was redefined. The well-done food was first selected from a series of samples with different M values by sensory evaluation, the average termination maturity values (AMT values) were obtained in accordance with the weighted M values of the selected doneness samples. Among, the changes of M values were assumed to be accorded with the first-order reaction kinetic model and a specific zM value was set as well...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28288563/is-independence-of-older-adults-safe-considering-the-risk-of-falls
#4
Dorota Talarska, Magdalena Strugała, Marlena Szewczyczak, Sławomir Tobis, Michał Michalak, Izabela Wróblewska, Katarzyna Wieczorowska-Tobis
BACKGROUND: Falls affect approx. 30% of elderly population per year. They cause major injuries and reduce independence of the older adults' functioning. The main objective of the study was to evaluate the degree of independence and find the fall risk factors in the study group. METHODS: The study included 506 - older adults. The study group included patients from GP clinics and members of two senior centers. The study duration was 12 months. Our study tools included EASY- Care Standard 2010 questionnaire, Abbreviated Mental Test Score (AMTS), Index Barthel, Instrumental Activities of Daily Living Scale (IADL), Geriatric Depression Scale (GDS), Timed Up and Go (TUG)...
March 14, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28278300/physical-activity-levels-determine-exercise-induced-changes-in-brain-excitability
#5
Tea Lulic, Jenin El-Sayes, Hunter J Fassett, Aimee J Nelson
Emerging evidence suggests that regular physical activity can impact cortical function and facilitate plasticity. In the present study, we examined how physical activity levels influence corticospinal excitability and intracortical circuitry in motor cortex following a single session of moderate intensity aerobic exercise. We aimed to determine whether exercise-induced short-term plasticity differed between high versus low physically active individuals. Participants included twenty-eight young, healthy adults divided into two equal groups based on physical activity level determined by the International Physical Activity Questionnaire: low-to-moderate (LOW) and high (HIGH) physical activity...
2017: PloS One
https://www.readbyqxmd.com/read/28263555/novel-peptides-derived-from-dengue-virus-capsid-protein-translocate-reversibly-the-blood-brain-barrier-through-a-receptor-free-mechanism
#6
Vera Neves, Frederico Aires-da-Silva, Maurício Morais, Lurdes Gano, Elisabete Ribeiro, Antónia Pinto, Sandra Aguiar, Diana Gaspar, Célia Fernandes, João D G Correia, Miguel A R B Castanho
The delivery of therapeutic molecules to the central nervous system is hampered by poor delivery across the blood-brain barrier (BBB). Several strategies have been proposed to enhance transport into the brain, including invasive techniques and receptor-mediated transport (RMT). Both approaches have several drawbacks, such as BBB disruption, receptor saturation, and off-target effects, raising safety issues. Herein, we show that specific domains of Dengue virus type 2 capsid protein (DEN2C) can be used as trans-BBB peptide vectors...
March 21, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28262698/the-taste-response-to-ammonia-in-drosophila
#7
R Delventhal, K Menuz, R Joseph, J Park, J S Sun, J R Carlson
Ammonia is both a building block and a breakdown product of amino acids and is found widely in the environment. The odor of ammonia is attractive to many insects, including insect vectors of disease. The olfactory response of Drosophila to ammonia has been studied in some detail, but the taste response has received remarkably little attention. Here, we show that ammonia is a taste cue for Drosophila. Nearly all sensilla of the major taste organ of the Drosophila head house a neuron that responds to neutral solutions of ammonia...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28258017/anticoagulation-alone-for-aortic-segment-treatment-in-symptomatic-primary-aortic-mural-thrombus-patients
#8
Andrés Reyes Valdivia, Africa Duque Santos, Marta Garnica Ureña, Asunción Romero Lozano, Enrique Aracil Sanus, Julia Ocaña Guaita, Claudio Gandarias
BACKGROUND: Primary aortic mural thrombus (AMT) is a rare entity. Asymptomatic AMT may be found in imaging studies for other disease studies. Symptomatic AMT as embolic events may localize in the arterial branches of the aorta; limb ischemia is the most usual clinical presentation, though. However, when proximal aorta is compromised, visceral branches occlusion and ischemia may determine morbidity and mortality in these patients. METHODS: We performed a retrospective study with collection of data from January 2011 to September 2016...
February 28, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28254738/readability-formulas-and-user-perceptions-of-electronic-health-records-difficulty-a-corpus-study
#9
Jiaping Zheng, Hong Yu
BACKGROUND: Electronic health records (EHRs) are a rich resource for developing applications to engage patients and foster patient activation, thus holding a strong potential to enhance patient-centered care. Studies have shown that providing patients with access to their own EHR notes may improve the understanding of their own clinical conditions and treatments, leading to improved health care outcomes. However, the highly technical language in EHR notes impedes patients' comprehension...
March 2, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28250043/mechanism-of-formate-nitrite-transporters-by-dielectric-shift-of-substrate-acidity
#10
Marie Wiechert, Eric Beitz
Bacterial formate-nitrite transporters (FNTs) regulate the metabolic flow of small, weak mono-acids. Recently, the eukaryotic PfFNT was identified as the malaria parasite's lactate transporter and novel drug target. Despite crystal data, central mechanisms of FNT gating and transport remained unclear. Here, we show elucidation of the FNT transport mechanism by single-step substrate protonation involving an invariant lysine in the periplasmic vestibule. Opposing earlier gating hypotheses and electrophysiology reports, quantification of total uptake by radiolabeled substrate indicates a permanently open conformation of the bacterial formate transporter, FocA, irrespective of the pH Site-directed mutagenesis, heavy water effects, mathematical modeling, and simulations of solvation imply a general, proton motive force-driven FNT transport mechanism: Electrostatic attraction of the acid anion into a hydrophobic vestibule decreases substrate acidity and facilitates protonation by the bulk solvent...
March 1, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28240187/the-endocannabinoid-system-modulating-levels-of-consciousness-emotions-and-likely-dream-contents
#11
Eric Murillo-Rodriguez, José Carlos Pastrana-Trejo, Mireille Salas-Crisóstomo, Miriel de-la-Cruz
Cannabinoids are derivatives that are either compounds occurring naturally in the plant, Cannabis sativa or synthetic analogs of these molecules. The first and most widely investigated of the cannabinoids is ∆9-tetrahydrocannabinol (Δ9-THC), which is the main psychotropic constituent of cannabis and undergoes significant binding to cannabinoid receptors. These cannabinoid receptors are seven-transmembrane receptors that received their name from the fact that they respond to cannabinoid compounds, including Δ9-THC...
February 23, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28224301/surgical-outcomes-of-perforated-and-unperforated-corneal-descemetocele
#12
Evin Singar Ozdemir, Ayse Burcu, Zuleyha Yalnız Akkaya, Firdevs Ornek
OBJECTIVE: To compare the surgical outcomes of amniotic membrane transplantation (AMT) and penetrating keratoplasty (PK) in perforated and non-perforated corneal descemetocele. METHOD: In this study, we retrospectively examined 48 eyes of 48 patients operated with AMT, and 32 eyes of 32 patients operated with PK for perforated and non-perforated descemetocele. RESULTS: There were no significant differences between the two groups with regard to age, sex, laterality, follow-up duration, cause of descemetocele, and localization (p > 0...
February 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28219139/-outcome-of-relaying-anterolateral-thigh-perforator-flap-in-resurfacing-the-donor-site-wound-following-free-anteromedial-thigh-perforator-flap-transfer-for-reconstruction-of-defect-after-oral-tumor-radical-resection
#13
D J Song, Z Li, X Zhou, Y X Zhang, X W Peng, B Zhou, C L Lyu, L C Yang, W Peng
Objective: To observe the outcome of relaying anterolateral thigh (ALT) perforator flap in resurfacing the donor site wound following free anteromedial thigh (AMT) perforator flap transfer for reconstruction of defect after oral tumor radical resection. Methods: From January 2013 to January 2016, 28 patients with oral tumor underwent radical resection in our hospital, leaving defects with size ranged from 6.5 cm×3.5 cm to 11.0 cm×7.5 cm which were reconstructed by free AMT perforator flaps with size ranged from 7...
February 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28195901/prognostic-molecular-and-imaging-biomarkers-in-primary-glioblastoma
#14
Edit Bosnyák, Sharon K Michelhaugh, Neil V Klinger, David O Kamson, Geoffrey R Barger, Sandeep Mittal, Csaba Juhász
PURPOSE: Several molecular glioma markers (including isocitrate dehydrogenase 1 [IDH1] mutation, amplification of the epidermal growth factor receptor [EGFR], and methylation of the O6-methylguanine-DNA methyltransferase [MGMT] promoter) have been associated with glioblastoma survival. In this study, we examined the association between tumoral amino acid uptake, molecular markers, and overall survival in patients with IDH1 wild-type (primary) glioblastoma. PATIENTS AND METHODS: Twenty-one patients with newly diagnosed IDH1 wild-type glioblastomas underwent presurgical MRI and PET scanning with alpha[C-11]-L-methyl-tryptophan (AMT)...
February 14, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28193478/metabolic-cold-adaptation-contributes-little-to-the-interspecific-variation-in-metabolic-rates-of-65-species-of-drosophilidae
#15
Branwen Messamah, Vanessa Kellermann, Hans Malte, Volker Loeschcke, Johannes Overgaard
Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20°C for both sexes and data were analyzed in relation to the natural thermal environment of these species. We found considerable interspecific variation in MR ranging from 1.34 to 8.99µWmg(-1) at 10°C...
February 11, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28188265/the-kinase-cipk23-inhibits-ammonium-transport-in-arabidopsis-thaliana
#16
Tatsiana Straub, Uwe Ludewig, Benjamin Neuhäuser
Ion transport in plants is not only strictly regulated on a transcriptional level, but it is also regulated posttranslationally. Enzyme modifications such as phosphorylation provide rapid regulation of many plant ion transporters and channels. Upon exposure to high ammonium concentrations in the rhizosphere, the high-affinity ammonium transporters (AMTs) in Arabidopsis thaliana are efficiently inactivated by phosphorylation to avoid toxic accumulation of cytoplasmic ammonium. External ammonium stimulates the phosphorylation of a conserved threonine in the cytosolic AMT1 C terminus, which allosterically inactivates AMT1 trimers...
February 2017: Plant Cell
https://www.readbyqxmd.com/read/28177684/aegle-marmelos-l-corr-impedes-onset-of-insulin-resistance-syndrome-in-rats-provided-with-drinking-fructose-from-weaning-to-adulthood-stages-of-development-a-mechanistic-study
#17
Rajani Mathur, Ratika Sehgal, Preeti Rajora, Shveta Sharma, Rajesh Kumar, Sandeep Mathur
To explore the effect of aqueous extract of leaves of Aegle marmelos (AM) on hepatic carbohydrate metabolism and insulin downstream signalling in rats provided with drinking fructose (15%) from weaning to adulthood. Wistar albino rats (4week) were randomly divided into Normal Control (NC), Fructose Control (FC) and treatment (AMT) groups and provided over 8 weeks, chow + water, chow + fructose (15%) and chow + fructose (15%) + AM (500 mg/kg/d, p.o.), respectively. Significantly (p<0.05) raised levels of Fasting Blood Glucose, lipid, visceral weight, plasma insulin and leptin, glycogen, gluconeogenesis enzyme levels but decreased glycolytic enzyme activity was recorded in FC as compared to NC...
December 17, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28168208/cortical-excitability-correlates-with-seizure-control-and-epilepsy-duration-in-chronic-epilepsy
#18
Adam D Pawley, Fahmida A Chowdhury, Chayanin Tangwiriyasakul, Bryan Ceronie, Robert D C Elwes, Lina Nashef, Mark P Richardson
OBJECTIVE: Cortical excitability differs between treatment responders and nonresponders in new-onset epilepsy. Moreover, during the first 3 years of epilepsy, cortical excitability becomes more abnormal in nonresponders but normalizes in responders. Here, we study chronic active epilepsy, to examine whether cortical excitability continues to evolve over time, in association with epilepsy duration and treatment response. METHODS: We studied 28 normal subjects, 28 patients with moderately controlled epilepsy (≤4 seizures per year) and 40 patients with poorly controlled epilepsy (≥20 or more seizures per year)...
February 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28167748/does-achieving-the-best-practice-tariff-improve-outcomes-in-hip-fracture-patients-an-observational-cohort-study
#19
B Oakley, J Nightingale, C G Moran, I K Moppett
OBJECTIVES: To determine if the introduction of the best practice tariff (BPT) has improved survival of the elderly hip fracture population, or if achieving BPT results in improved survival for an individual. SETTING: A single university-affiliated teaching hospital. PARTICIPANTS: 2541 patients aged over 60 admitted with a neck of femur fracture between 2008 and 2010 and from 2012 to 2014 were included, to create two cohorts of patients, before and after the introduction of BPT...
February 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28159628/a-comparison-of-agrobacterium-mediated-transformation-and-protoplast-mediated-transformation-with-crispr-cas9-and-bipartite-gene-targeting-substrates-as-effective-gene-targeting-tools-for-aspergillus-carbonarius
#20
István Weyda, Lei Yang, Jesper Vang, Birgitte K Ahring, Mette Lübeck, Peter S Lübeck
In recent years, versatile genetic tools have been developed and applied to a number of filamentous fungi of industrial importance. However, the existing techniques have limitations when it comes to achieve the desired genetic modifications, especially for efficient gene targeting. In this study, we used Aspergillus carbonarius as a host strain due to its potential as a cell factory, and compared three gene targeting techniques by disrupting the ayg1 gene involved in the biosynthesis of conidial pigment in A...
February 1, 2017: Journal of Microbiological Methods
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