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https://www.readbyqxmd.com/read/29163991/an-undiagnosed-paraganglioma-in-a-58-year-old-female-who-underwent-tumor-resection
#1
William C Fox, Matthew Read, Richard E Moon, Eugene W Moretti, Brian J Colin
Paragangliomas and pheochromocytomas are rare neuroendocrine tumors that can have high morbidity and mortality if undiagnosed. Here we report a case of an undiagnosed paraganglioma in a 58-year-old female who underwent tumor resection. The patient became severely hypertensive intraoperatively with paroxysmal swings in blood pressure and then later became acutely hypotensive after tumor removal. She was managed in the surgical intensive care unit (SICU) postoperatively and discharged from the hospital without acute complications...
2017: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/29163226/adenosine-a2a-receptor-modulates-the-activity-of-globus-pallidus-neurons-in-rats
#2
Hui-Ling Diao, Yan Xue, Xiao-Hua Han, Shuang-Yan Wang, Cui Liu, Wen-Fang Chen, Lei Chen
The globus pallidus is a central nucleus in the basal ganglia motor control circuit. Morphological studies have revealed the expression of adenosine A2A receptors in the globus pallidus. To determine the modulation of adenosine A2A receptors on the activity of pallidal neurons in both normal and parkinsonian rats, in vivo electrophysiological and behavioral tests were performed in the present study. The extracellular single unit recordings showed that micro-pressure administration of adenosine A2A receptor agonist, CGS21680, regulated the pallidal firing activity...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29161624/are-there-associations-with-age-and-sex-in-walking-stability-in-healthy-older-adults
#3
Daan van Kooten, Florentina Hettinga, Kim Duffy, Jo Jackson, Matthew J D Taylor
The variability of the centre of pressure (COP) during walking can provide information in relation to stability when walking. The aim of this study was to investigate if age and sex were associated with COP variability, COP excursions, and COP velocities during walking. One-hundred and fourteen older adults (age 65.1±5.5 yrs.) participated in the study. A Kistler force platform (1000Hz) recorded the ground reaction forces and COPs during walking at a self-selected walking speed. The stance phase was divided, using the vertical GRF, into four sub-phases: loading response (LR), mid-stance (MSt), terminal stance (TSt), and pre-swing (PSw)...
November 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29158685/invasive-aspergillus-terreus-morphological-transitions-and-immunoadaptations-mediating-antifungal-resistance
#4
Louis Bengyella, Elsie Laban Yekwa, Muhammad Nasir Subhani, Ernest Tambo, Kiran Nawaz, Bakoena Ashton Hetsa, Sehrish Iftikhar, Sayanika Devi Waikhom, Pranab Roy
Background and aims: Aspergillus terreus Thom is a pathogen of public health and agricultural importance for its seamless abilities to expand its ecological niche. The aim of this study was holistically to investigate A. terreus morphological and immunoadaptations and their implication in antifungal resistance and proliferation during infection. Materials and methods: In-depth unstructured mining of relevant peer-reviewed literature was performed for A. terreus morphological, immune, resistance, and genetic diversity based on the sequenced calmodulin-like gene...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29158621/loaded-and-unloaded-jump-performance-of-top-level-volleyball-players-from-different-age-categories
#5
Katia Kitamura, Lucas Adriano Pereira, Ronaldo Kobal, Cesar Cavinato Cal Abad, Ronaldo Finotti, Fábio Yuzo Nakamura, Irineu Loturco
The aim of this study was to investigate the differences in loaded and unloaded jump performances between different age categories of top-level volleyball players from the same club. Forty-three volleyball players were divided into four age groups: under-17, under-19, under-21 and professional. Vertical jumping height for squat jump (SJ), countermovement jump (CMJ) and CMJ with arm swing (CMJa) and mean propulsive velocity (MPV) in the loaded jump squat exercise with 40% of the athlete's body mass were compared among the different age categories, considering body mass as a covariate...
September 2017: Biology of Sport
https://www.readbyqxmd.com/read/29157023/the-inconvenience-due-to-women-s-monthly-bleeding-isy-survey-a-study-of-premenstrual-symptoms-among-5728-women-in-europe
#6
Iñaki Lete, Günther Häusler, Axelle Pintiaux, Christian Jamin, Rossella E Nappi, Christian Fiala, Nathalie Chabbert-Buffet, Paloma Lobo
OBJECTIVES: The aim of the ISY study was to investigate the prevalence of menstrual-related symptoms prior to and/or during menstrual or withdrawal bleeding among women from 12 European countries. METHODS: A 15-min quantitative online survey was conducted in two waves from February to September 2015 among 5728 women aged between 18 and 45 years, with an equal distribution of women using a combined hormonal contraceptive, including regular combined oral contraceptives (COCs) (CHC group, n = 2739) and women using a non-hormonal contraceptive or no contraceptive (non-HC group, n = 2989)...
November 20, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/29157006/chronotype-description-in-search-of-a-solid-subjective-amplitude-scale
#7
Halszka Oginska, Justyna Mojsa-Kaja, Olivier Mairesse
The term "subjective circadian amplitude" refers to the range or the distinctness of diurnal variations of arousal, that is, the awareness (or lack thereof) of difference between hyper- and hypo-activation phases, the ability to volitionally modulate one's own psychophysiological state, the strength of morning-evening preferences and flexibility of the rhythm or perceived stability of the circadian phase. The complexity of this construct is the source of difficulties in research and measurement. The psychometric features of distinctness subscales of the Chronotype Questionnaire and the Caen Chronotype Questionnaire are not satisfactory...
November 20, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29155722/automated-gait-analysis-in-mice-with-chronic-constriction-injury
#8
Dong-Wook Kang, Jae-Gyun Choi, Ji-Young Moon, Suk-Yun Kang, Yeonhee Ryu, Jin Bong Park, Hyun-Woo Kim
The von Frey test is a classical method that has been widely used to examine the sensory function of neuropathic pain animals. However, it has some disadvantages such as subjective data and the requirement of a skilled, experienced experimenter. To date, a variety of modifications have improved the von Frey method, but it still has a few limitations. Recent reports have suggested that gait analysis produces more accurate and objective data from the neuropathic animals. This protocol demonstrates how to perform the automated gait analysis to determine the degree of neuropathic pain in mice...
October 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154305/an-active-transition-from-offshore-work-to-family-life-activities-that-may-impact-recovery
#9
Suzanne L Merkus, Maaike A Huysmans, Kari Anne Holte, Willem van Mechelen, Allard J van der Beek
BACKGROUND: Night shift workers, particularly those working offshore, take a long time to recover from their shifts. The activities that shift workers, such as offshore employees, pursue during their leisure time can influence the process of recovery from work-related fatigue, but little is known about these leisure time activities. OBJECTIVE: To explore what leisure time activities are pursued that may be relevant to recovery for offshore employees. METHODS: Sixty-one offshore working family men-20 night shift, 16 swing shift, and 25 day shift workers-reported on six predefined activities for 14 days following their offshore tours...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29148779/hydrogen-uptake-on-coordinatively-unsaturated-metal-sites-in-vsb-5-revisited-strong-binding-affinity-leading-to-high-temperature-d2-h2-selectivity
#10
Amit Sharma, Keith V Lawler, Jarod J Wolffis, Christopher T Eckdahl, Cooper S McDonald, Jesse L C Rowsell, Stephen A Fitzgerald, Paul M Forster
We examine the adsorption of hydrogen and deuterium into the nanoporous nickel phosphate, VSB-5. Based on gas sorption analysis, VSB-5 exhibits one of the highest measured H2 heats of adsorption (HOA) for hydrogen (16 kJ/mol) yet reported. This high HOA is consistent with an unusually large redshift in the Q(1) and Q(0) hydrogen vibrational modes as measured with in situ IR spectroscopy. The HOA for D2 is measured to be 2 kJ/mol higher than for H2. Ideal Adsorbed Solution Theory analysis of H2 and D2 isotherms provides selectivities above 4 for deuterium at 140 K, suggesting that VSB-5 is a promising adsorbent for pressure-swing adsorption type separations of hydrogen isotopes...
November 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29148556/co2-adsorption-on-anatase-tio2-101-surfaces-a-combination-of-uhv-ftirs-and-first-principles-studies
#11
Yunjun Cao, Min Yu, Shandong Qi, Tingting Wang, Shiming Huang, Zhengfeng Ren, Shishen Yan, Shujun Hu, Mingchun Xu
The CO2 adsorption and dynamic behaviors on single crystal anatase TiO2(101) surfaces were investigated by UHV-FTIRS and first-principles calculations. The IRRAS results at 90 K show that the ν3(OCO) asymmetric stretching vibration of adsorbed CO2 exhibits band splitting at rather low CO2 coverage in p-polarized IR spectra for the IR beam incident along the [101[combining macron]] direction. Co-adsorbed CO can prevent such band splitting. Ab initio molecular dynamics (AIMD) simulations revealed that the adsorbed CO2 at finite temperature does not keep a stationary adsorption state but keeps a certain swing motion: one end of the linear CO2 molecule binds to surface Ti5c sites and the other end swings within the (010) plane with a tilted angle distribution ranging from 10° to 60° relative to the [101[combining macron]] direction...
November 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29148155/identifying-biomechanical-gait-parameters-in-adolescent-boys-with-haemophilia-using-principal-component-analysis
#12
L B Suckling, D Stephensen, M C Cramp, R Mahaffey, W I Drechsler
INTRODUCTION: Improvements in the medical management for those with haemophilia have resulted in improved clinical outcomes. However, current treatment regimens do not alleviate all joint haemarthroses with the potential for long-term joint deterioration remaining. The evaluation of functional activities such as gait, using standardized tools to monitor children with haemophilia is emerging. AIM: This study explored differences in sagittal plane biomechanics of walking in adolescent boys aged 11-18 years with haemophilia and an age-matched group of typically developing boys...
November 17, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29148138/artificial-walking-technologies-to-improve-gait-in-cerebral-palsy-multichannel-neuromuscular-stimulation
#13
Jessica Rose, Katelyn Cahill-Rowley, Erin E Butler
Cerebral palsy (CP) is the most common childhood motor disability and often results in debilitating walking abnormalities, such as flexed-knee and stiff-knee gait. Current medical and surgical treatments are only partially effective in improving gait abnormalities and may cause significant muscle weakness. However, emerging artificial walking technologies, such as step-initiated, multichannel neuromuscular electrical stimulation (NMES), can substantially improve gait patterns and promote muscle strength in children with spastic CP...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29146947/the-semiquinone-swing-in-the-bifurcating-electron-transferring-flavoprotein-butyryl-coa-dehydrogenase-complex-from-clostridium-difficile
#14
Julius K Demmer, Nilanjan Pal Chowdhury, Thorsten Selmer, Ulrich Ermler, Wolfgang Buckel
The electron transferring flavoprotein/butyryl-CoA dehydrogenase (EtfAB/Bcd) catalyzes the reduction of one crotonyl-CoA and two ferredoxins by two NADH within a flavin-based electron-bifurcating process. Here we report on the X-ray structure of the Clostridium difficile (EtfAB/Bcd)4 complex in the dehydrogenase-conducting D-state, α-FAD (bound to domain II of EtfA) and δ-FAD (bound to Bcd) being 8 Å apart. Superimposing Acidaminococcus fermentans EtfAB onto C. difficile EtfAB/Bcd reveals a rotation of domain II of nearly 80°...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29145773/forced-use-of-the-paretic-leg-induced-by-a-constraint-force-applied-to-the-nonparetic-leg-in-individuals-poststroke-during-walking
#15
Chao-Jung Hsu, Janis Kim, Elliot J Roth, William Z Rymer, Ming Wu
BACKGROUND: Individuals with stroke usually show reduced muscle activities of the paretic leg and asymmetrical gait pattern during walking. OBJECTIVE: To determine whether applying a resistance force to the nonparetic leg would enhance the muscle activities of the paretic leg and improve the symmetry of spatiotemporal gait parameters in individuals with poststroke hemiparesis. METHODS: Fifteen individuals with chronic poststroke hemiparesis participated in this study...
November 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/29142324/an-algorithm-for-the-beat-to-beat-assessment-of-cardiac-mechanics-during-sleep-on-earth-and-in-microgravity-from-the-seismocardiogram
#16
Marco Di Rienzo, Emanuele Vaini, Prospero Lombardi
Seismocardiogram, SCG, is the measure of precordial vibrations produced by the beating heart, from which cardiac mechanics may be explored on a beat-to-beat basis. We recently collected a large amount of SCG data (>69 recording hours) from an astronaut to investigate cardiac mechanics during sleep aboard the International Space Station and on Earth. SCG sleep recordings are characterized by a prolonged duration and wide heart rate swings, thus a specific algorithm was developed for their analysis. In this article we describe the new algorithm and its performance...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29140826/effects-of-integrating-rhythmic-arm-swing-into-robot-assisted-walking-in-patients-with-subacute-stroke-a-randomized-controlled-pilot-study
#17
Tae-Woo Kang, Duck-Won Oh, Ji-Hyun Lee, Heon-Seock Cynn
This study aimed to identify the effects of rhythmic arm swing during robot-assisted walking training on balance, gait, motor function, and activities of daily living among patients with subacute stroke. Twenty patients with subacute stroke were recruited, and thereafter randomly allocated to either the experimental group that performed the robot-assisted walking training with rhythmic arm swing, or the control group that performed the training in arm fixation. In total, 30 training sessions were carried out...
November 14, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/29139570/distribution-of-segmental-foot-kinematics-in-patients-with-degenerative-joint-disease-of-the-ankle
#18
Karl Canseco, Karen M Kruger, Jessica M Fritz, Katherine A Konop, Sergey Tarima, Richard M Marks, Gerald F Harris
Degenerative joint disease (DJD) of the ankle is a debilitating chronic disease associated with severe pain and dysfunction resulting in antalgic gait alteration. Little information is available about segmental foot and ankle motion distribution during gait in ankle osteoarthritis. The aim of the current study was to dynamically characterize segmental foot and ankle kinematics of patients with severe ankle arthrosis requiring total ankle replacement. This was a prospective study involving 36 (19 M, 17 F) adult patients with a clinical diagnosis of ankle arthrosis ("DJD" group) and 36 (23 M, 13 F) healthy subjects ("Control" group)...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29138106/the-subthalamic-neurons-are-activated-by-both-orexin-a-and-orexin-b
#19
Qing Sheng, Yan Xue, Ying Wang, An-Qi Chen, Cui Liu, Yun-Hai Liu, Hong-Yan Chu, Lei Chen
The subthalamic nucleus is an important nucleus in the indirect pathway of the basal ganglia circuit and therefore is involved in motor control under both normal and pathological conditions. Morphological studies reveal that the subthalamic nucleus receives relatively dense orexinergic projections originating from the hypothalamus. Both orexin-1 (OX1) and orexin-2 (OX2) receptors are expressed in the subthalamic nucleus. To explore the functions of orexinergic system in the subthalamic nucleus, extracellular electrophysiological recordings and behavioral tests were performed in the present study...
November 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/29135783/beyond-the-bottom-of-the-foot-topographic-organization-of-the-foot-dorsum-in-walking
#20
Taryn Klarner, Gregory E P Pearcey, Yao Sun, Trevor S Barss, Chelsea Kaupp, Bridget Munro, Nick Frank, E Paul Zehr
INTRODUCTION: Sensory feedback from the foot dorsum during walking has only been studied globally by whole nerve stimulation. Stimulating the main nerve innervating the dorsal surface produces a functional stumble corrective response that is phase-dependently modulated. We speculated that effects evoked by activation of discrete skin regions on the foot dorsum would be topographically organized, as with the foot sole. METHODS: Nonnoxious electrical stimulation was delivered to five discrete locations on the dorsal surface of the foot during treadmill walking...
December 2017: Medicine and Science in Sports and Exercise
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