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https://www.readbyqxmd.com/read/27924250/first-carpo-metacarpal-joint-arthritis-interpositional-arthroplasty-using-trapezium
#1
Chirag Kapoor, Ankur Kansagra, Maulik Jhaveri, Aditya Merh, Paresh Golwala
Thumb pain secondary to arthritis at the basal joint of the thumb is a common condition, especially in women, and can be quite disabling. An accurate diagnosis can be readily made from the history and examination. Reconstructive procedures for each stage of the disease are aimed at relieving pain and restoring thumb motion and strength. There are a number of methods available to treat this condition both conservatively and surgically with variable success rates. We present a case of a middle-aged female with first carpo-metacarpal (CMC) joint arthritis in whom we have tried a new technique in which the trapezium is excised, crushed, put in a sponge covering and then inserted back in the void created after excision...
November 3, 2016: Curēus
https://www.readbyqxmd.com/read/27924133/optimization-of-in-vitro-and-ex-vitro-regeneration-and-micromorphological-studies-in-basella-alba-l
#2
Mahipal S Shekhawat, M Manokari
The optimum concentrations of the plant hormones for in vitro regeneration and subsequent effect of auxins on rooting (in vitro and ex vitro) of shoots of Basella alba L. have been investigated in present study. Nodal shoot segments were used as explants to initiate the cultures. The bud breaking from explants was observed within 1 week of incubation on agar gelled Murashige and Skoog's (MS) medium. Multiple axillary shoots (7.30 ± 0.56 shoots per explant) were induced on MS medium supplemented with 2.0 mg/L 6-benzylaminopurine (BAP)...
October 2016: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/27924131/optimizing-micropropagation-of-drought-resistant-pyrus-boissieriana-buhse
#3
Maryam Zakavi, Hossein Askari, Neda Irvani
The present study concentrated on introducing a micropropagation protocol for a drought resistant genotype from Pyrus boissieriana, which is the second most naturally widespread pear species in Iran with proper physiological and medicinal properties. Proliferating microshoot cultures were obtained by placing nodal segments on MS medium supplemented with BAP and IBA or NAA. The highest number of shoots (27 shoots per explant) were obtained with 1.5 mg l(-1) BAP and 0.05 mg l(-1) IBA, but this combination did not produce shoots of desirable length (>1...
October 2016: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/27923349/assessing-the-effects-of-hybridization-and-precipitation-on-invasive-weed-demography-using-strength-of-selection-on-vital-rates
#4
Zachary Teitel, Agnieszka Klimowski, Lesley G Campbell
BACKGROUND: As global climate change transforms average temperature and rainfall, species distributions may meet, increasing the potential for hybridization and altering individual fitness and population growth. Altered rainfall specifically may shift the strength and direction of selection, also manipulating population trajectories. Here, we investigated the role of interspecific hybridization and selection imposed by rainfall on the evolution of weedy life-history in non-hybrid (Raphanus raphanistrum) and hybrid (R...
December 7, 2016: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/27923270/comparison-of-antibody-immobilization-strategies-in-detection-of-vibrio-cholerae-by-surface-plasmon-resonance
#5
Ramezan Ali Taheri, Ali Hossein Rezayan, Fereshteh Rahimi, Javad Mohammadnejad, Mehdi Kamali
Surface plasmon resonance immunosensor for the detection of bacterial cells was first reported in 1998 with high detection limit as much as 10(7 )cfu/ml. Since then, many efforts have been made aiming to lower the detection limit and improve the sensitivity of detection. The aim of this study was to compare the effect of four most frequently used immobilization strategies, including direct physical adsorption (physisorption), covalent immobilization via self-assembled monolayer (SAM) formation, bioaffinity immobilization using protein G-mediated immobilization and using mixed SAM of alkane thiols on signal strength of detection of Vibrio cholerae using these modified surfaces...
December 6, 2016: Biointerphases
https://www.readbyqxmd.com/read/27923169/primary-stability-of-unicompartmental-knee-arthroplasty-under-dynamic-flexion-movement-in-human-femora
#6
Thomas M Grupp, Melanie Holderied, Matthias F Pietschmann, Christian Schröder, Angélica P Islas Padilla, Christoph Schilling, Volkmar Jansson, Peter E Müller
BACKGROUND: The objective of our study was to evaluate the impact of a trabecular stem fixation versus a cortical teeth fixation technique on the primary stability of cemented unicompartmental femoral components under dynamic flexion movement loading conditions in human femora. METHODS: Ten fresh-frozen human knees of a mean donor age of 73.9years were used to perform medial unicompartmental knee arthroplasty under a less invasive parapatellar surgical approach...
November 26, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27923102/pain-treatment-continues-to-be-inaccessible-for-many-patients-around-the-globe-second-phase-of-opioid-price-watch-a-cross-sectional-study-to-monitor-the-prices-of-opioids
#7
Tania Pastrana, Roberto Wenk, Lukas Radbruch, Ebtesam Ahmed, Liliana De Lima
BACKGROUND: Strong opioids are a cornerstone of pain treatment, of which morphine is considered an essential analgesic by the World Health Organization. Access to opioids is limited, due to restrictive laws, limited education, and high prices. This is the second phase of a global project to monitor and report the dispensing price of opioids with the specific aim to expand and increase the information and allow further analysis of the challenges in their availability and affordability...
December 6, 2016: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/27922595/memories-of-opiate-withdrawal-emotional-states-correlate-with-specific-gamma-oscillations-in-the-nucleus-accumbens
#8
Cyril Dejean, Mathieu Sitko, Paul Girardeau, Amine Bennabi, Stéphanie Caillé, Martine Cador, Thomas Boraud, Catherine Le Moine
Affective memories associated with the negative emotional state experienced during opiate withdrawal are central in maintaining drug-taking, seeking and relapse. Nucleus accumbens (NAC) is a key structure both for acute withdrawal and withdrawal memories reactivation, however NAC neuron coding properties underpinning the expression of these memories remain largely unknown. Here we aimed at deciphering the role of NAC neurons in the encoding and retrieval of opiate withdrawal memory. Chronic single neuron and local field potentials recordings were performed in morphine-dependent rats and placebo-controls...
December 6, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27922580/comparative-analysis-of-peri-operative-outcomes-using-nationally-derived-hospital-discharge-data-relative-to-a-prospective-multi-center-surgical-database-of-adult-spinal-deformity-surgery
#9
Gregory W Poorman, Peter G Passias, Aaron J Buckland, Cyrus M Jalai, Michael Kelly, Daniel M Sciubba, Brian J Neuman, D Kojo Hamilton, Amit Jain, Bassel Diebo, Virginie Lafage, Shay Bess, Eric O Klineberg
STUDY DESIGN: Retrospective analysis of three prospectively collected databases. OBJECTIVE: compare peri-operative outcomes in Adult Spinal Deformity (ASD) surgeries in a surgeon-run (SR-ASD) and two national databases: the Nationwide Inpatient Sample (NIS) and the National Surgical Quality Improvement Program (NSQIP). SUMMARY OF BACKGROUND DATA: has been learned on the treatment of ASD in the last decade with prospective multicenter collaborative research focusing on this specific condition...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27921288/objective-evaluation-of-subclass-characteristics-on-breech-face-marks
#10
Fabiano Riva, Rob Hermsen, Erwin Mattijssen, Pascal Pieper, Christophe Champod
Subclass characteristics can be found on the breech face marks left on spent cartridge cases. Even if they are assumed to be rare and their reported number is small, they can potentially lead to false associations. Subclass characteristics have been studied empirically allowing examiners to recognize them and to understand in which conditions they are produced. Until now, however, their influence on the identification process has not been studied from a probabilistic point of view. In this study, we aim at measuring the effect of these features on the strength of association derived from examinations involving subclass characteristics...
December 6, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27920900/polyelectrolyte-coating-on-superparamagnetic-iron-oxide-nanoparticles-as-interface-between-magnetic-core-and-biorelevant-media
#11
Etelka Tombácz, Katalin Farkas, Imre Földesi, Márta Szekeres, Erzsébet Illés, Ildikó Y Tóth, Daniel Nesztor, Tamás Szabó
Nanoparticles do not exist in thermodynamical equilibrium because of high surface free energy, thus they have only kinetic stability. Spontaneous changes can be delayed by designed surface coating. In biomedical applications, superparamagnetic iron oxide nanoparticles (SPIONs) require an optimized coating in order to fulfil the expectation of medicine regulatory agencies and ultimately that of biocompatibility. In this work, we show the high surface reactivity of naked SPIONs due to ≡Fe-OH sites, which can react with H(+)/OH(-) to form pH- and ionic strength-dependent charges...
December 6, 2016: Interface Focus
https://www.readbyqxmd.com/read/27920726/hrvanalysis-a-free-software-for-analyzing-cardiac-autonomic-activity
#12
Vincent Pichot, Frédéric Roche, Sébastien Celle, Jean-Claude Barthélémy, Florian Chouchou
Since the pioneering studies of the 1960s, heart rate variability (HRV) has become an increasingly used non-invasive tool for examining cardiac autonomic functions and dysfunctions in various populations and conditions. Many calculation methods have been developed to address these issues, each with their strengths and weaknesses. Although, its interpretation may remain difficult, this technique provides, from a non-invasive approach, reliable physiological information that was previously inaccessible, in many fields including death and health prediction, training and overtraining, cardiac and respiratory rehabilitation, sleep-disordered breathing, large cohort follow-ups, children's autonomic status, anesthesia, or neurophysiological studies...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27920427/mixing-of-quantum-states-a-new-route-to-creating-optical-activity
#13
Anvar S Baimuratov, Nikita V Tepliakov, Yurii K Gun'ko, Alexander V Baranov, Anatoly V Fedorov, Ivan D Rukhlenko
The ability to induce optical activity in nanoparticles and dynamically control its strength is of great practical importance due to potential applications in various areas, including biochemistry, toxicology, and pharmaceutical science. Here we propose a new method of creating optical activity in originally achiral quantum nanostructures based on the mixing of their energy states of different parities. The mixing can be achieved by selective excitation of specific states or via perturbing all the states in a controllable fashion...
December 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920193/light-intensity-of-5-or-20%C3%A2-lux-on-broiler-behavior-welfare-and-productivity
#14
Jean-Loup Rault, Katie Clark, Peter J Groves, Greg M Cronin
Light intensity can influence broiler behavior, but discrepancies in the scientific literature remain. Furthermore, few studies have investigated the welfare implications induced by varying light intensity. We investigated the effects of providing 5 or 20 lux light intensity on broiler behavior, welfare and productivity. A total of 1,872 Ross 308 broilers of mixed sex were studied across 2 replicates. Treatments began on d 8 with one of 2 light intensity levels: 5 lux or 20 lux, using LED lights on a 16L:8D photoperiod with 30 min sunrise and sunset periods...
December 5, 2016: Poultry Science
https://www.readbyqxmd.com/read/27920147/accumbens-nnos-interneurons-regulate-cocaine-relapse
#15
Alexander C W Smith, Michael D Scofield, Jasper A Heinsbroek, Cassandra D Gipson, Daniela Neuhofer, Doug J Roberts-Wolfe, Sade Spencer, Neringa M Stankeviciute, Rachel Smith, Nicholas P Allen, Melissa R Lorang, William C Griffin, Heather A Boger, Peter W Kalivas
: Relapse to drug use can be initiated by drug-associated cues. The intensity of cue-induced relapse is correlated with the induction of transient synaptic potentiation (t-SP) at glutamatergic synapses on medium spiny neurons (MSNs) in the nucleus accumbens core (NAcore), and requires spillover of glutamate from prefrontal cortical afferents. We used a rodent self-administration/reinstatement model of relapse to show that cue-induced t-SP and reinstated cocaine-seeking result from glutamate spillover initiating a metabotropic glutamate receptor 5 (mGluR5)-dependent increase in nitric oxide (NO) production...
December 5, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27919864/taxonomy-for-the-rehabilitation-of-knee-conditions-trak-a-digital-intervention-to-support-the-self-care-components-of-anterior-cruciate-ligament-rehabilitation-protocol-of-a-feasibility-study
#16
Emma Dunphy, Fiona L Hamilton, Kate Button
BACKGROUND: Rupture of the anterior cruciate ligament (ACL) is common, especially in the active population. In defining the problem of ACL rehabilitation, this study draws from the knowledge that improved self-care, strength, and fitness are associated with better outcomes. Traditional rehabilitation involves regular physiotherapy, but it is not clear what the optimal way for delivering rehabilitation is, and it varies widely across the world. Evidence for treatments are discussed in the literature, however standard length of rehabilitation and frequency of appointments are unknown...
December 5, 2016: JMIR Research Protocols
https://www.readbyqxmd.com/read/27919820/tnf-%C3%AE-and-cancer-cachexia-molecular-insights-and-clinical-implications
#17
REVIEW
Hetal J Patel, Bhoomika M Patel
Cancer cachexia characterized by a chronic wasting syndrome, involves skeletal muscle loss and adipose tissue loss and resistance to conventional nutritional support. Cachexia is responsible for the reduction in quality and length of life of cancer patients. It also decreases the muscle strength of the patients. The pro-inflammatory and pro-cachectic factors produced by the tumor cells have important role in genesis of cachexia. A number of pro-inflammatory cytokines, like interleukin-1 (IL-1), IL-6, tumor necrosis factor- alpha (TNF-α) may have important role in the pathological mechanisms of cachexia in cancer...
December 2, 2016: Life Sciences
https://www.readbyqxmd.com/read/27919750/mapping-the-functional-connectome-in-traumatic-brain-injury-what-can-graph-metrics-tell-us
#18
Karen Caeyenberghs, Helena Verhelst, Adam Clemente, Peter H Wilson
OBJECTIVE: Traumatic brain injury (TBI) is associated with cognitive and motor deficits, and poses a significant personal, societal, and economic burden. One mechanism by which TBI is thought to affect cognition and behaviour is through changes in functional connectivity. Graph theory is a powerful framework for quantifying topological features of neuroimaging-derived functional networks. The objective of this paper is to review studies examining functional connectivity in TBI with an emphasis on graph theoretical analysis that is proving to be valuable in uncovering network abnormalities in this condition...
December 2, 2016: NeuroImage
https://www.readbyqxmd.com/read/27919099/look-before-you-seek-preview-adds-a-fixed-benefit-to-all-searches
#19
Sricharan Sunder, S P Arun
Knowing in advance what to look for speeds up search, but how this knowledge guides search is poorly understood. The little available evidence suggests that previewing the target produces larger reductions in search times for harder searches. To investigate this issue further, we performed seven experiments in which subjects searched for an oddball target after previewing the target, distracter, or an unrelated square. Consistent with previous studies, harder searches showed bigger reductions in search time for an informative preview...
December 1, 2016: Journal of Vision
https://www.readbyqxmd.com/read/27919012/atypical-brain-activation-in-children-who-stutter-in-a-visual-go-nogo-task-an-erp-study
#20
Johanna Piispala, Sara Määttä, Ari Pääkkönen, Risto Bloigu, Mika Kallio, Eira Jansson-Verkasalo
OBJECTIVE: The aim of the study was to investigate inhibitory control by evaluating possible differences in the strength and distribution of the brain activity in a visual Go/Nogo task in children who stutter (CWS) compared to typically developing children (TDC). METHODS: Eleven CWS and 19 TDC participated. Event related potentials (ERP) were recorded using a 64-channel EEG-cap during an equiprobable visual Go/Nogo task. The global field power (GFP) as well as the mean amplitudes in the P3 time frame were compared between groups...
November 17, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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