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https://www.readbyqxmd.com/read/28340371/walking-adaptability-assessments-with-the-interactive-walkway-between-systems-agreement-and-sensitivity-to-task-and-subject-variations
#1
Daphne J Geerse, Bert H Coolen, Melvyn Roerdink
The ability to adapt walking to environmental circumstances is an important aspect of walking, yet difficult to assess. The Interactive Walkway was developed to assess walking adaptability by augmenting a multi-Kinect-v2 10-m walkway with gait-dependent visual context (stepping targets, obstacles) using real-time processed markerless full-body kinematics. In this study we determined Interactive Walkway's usability for walking-adaptability assessments in terms of between-systems agreement and sensitivity to task and subject variations...
March 2, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28340130/falling-down-on-the-job-evaluation-and-treatment-of-fall-risk-among-older-adults-with-upper-extremity-fragility-fractures
#2
Christine M McDonough, Carrie H Colla, Donald Carmichael, Anna N A Tosteson, Tor D Tosteson, John-Erik Bell, Robert V Cantu, Jonathan D Lurie, Julie P W Bynum
Background: Clinical practice guidelines recommend fall risk assessment and intervention for older adults who sustain a fall-related injury to prevent future injury and mobility decline. Objective: To describe how often Medicare beneficiaries with upper extremity fracture receive evaluation and treatment for fall risk. Design: Observational cohort. Methods Subjects: Fee-for-service beneficiaries age 66 to 99 treated as outpatients for proximal humerus or distal radius/ulna ("wrist") fragility fractures were studied using Carrier and Outpatient Hospital files...
March 2, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28339247/thermodynamic-and-kinetic-fragility-of-freon-113-the-most-fragile-plastic-crystal
#3
A Vispa, M Romanini, M A Ramos, L C Pardo, F J Bermejo, M Hassaine, A I Krivchikov, J W Taylor, J Ll Tamarit
We present a dynamic and thermodynamic study of the orientational glass former Freon 113 (1,1,2-trichloro-1,2,2-trifluoroethane, CCl_{2}F-CClF_{2}) in order to analyze its kinetic and thermodynamic fragilities. Freon 113 displays internal molecular degrees of freedom that promote a complex energy landscape. Experimental specific heat and its microscopic origin, the vibrational density of states from inelastic neutron scattering, together with the orientational dynamics obtained by means of dielectric spectroscopy have revealed the highest fragility value, both thermodynamic and kinetic, found for this orientational glass former...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28338579/correlative-analysis-of-vertebral-trabecular-bone-microarchitecture-and-mechanical-properties-a-combined-ultra-high-field-7-tesla-mri-and-biomechanical-investigation
#4
Daphne Guenoun, Alexandre Fouré, Martine Pithioux, Sandrine Guis, Thomas Le Corroller, Jean-Pierre Mattei, Vanessa Pauly, Maxime Guye, Monique Bernard, Patrick Chabrand, Pierre Champsaur, David Bendahan
STUDY DESIGN: High resolution imaging and biomechanical investigation of ex-vivo vertebrae OBJECTIVE.: To assess bone microarchitecture of cadaveric vertebrae using ultra-high field (UHF) 7 Tesla magnetic resonance imaging (MRI) and to determine whether the corresponding microarchitecture parameters were related to BMD and bone strength assessed by dual energy X-ray absorptiometry (DXA) and mechanical compression tests. SUMMARY OF BACKGROUND DATA: Limitations of DXA for the assessment of bone fragility and osteoporosis have been recognized and criteria of microarchitecture alteration have been included in the definition of osteoporosis...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338574/rigid-occipitocervical-instrumented-fusion-for-atlantoaxial-instability-in-an-18-month-old-toddler-with-brachytelephalangic-chondrodysplasia-punctata-a-case-report
#5
Hiroki Oba, Jun Takahashi, Kyoko Takano, Yuji Inaba, Mitsuo Motobayashi, Gen Nishimura, Shugo Kuraishi, Masayuki Shimizu, Shota Ikegami, Toshimasa Futatsugi, Masashi Uehara, Tomoki Kosho, Hiroyuki Kato, Koki Uno
STUDY DESIGN: Case report OBJECTIVE.: We report here on an 18-month-old boy with brachytelephalangic chondrodysplasia punctata (BCDP), whose atlantoaxial instability was successfully managed with occipitocervical instrumented fusion (OCF) using screw and rod instrumentations. SUMMARY OF BACKGROUND DATA: Recently, there have been a number of reports on BCDP with early onset of cervical myelopathy. Surgical OCF is a vital intervention to salvage affected individuals from the life-threatening morbidity...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28337901/cardiopathy-and-osteoporosis-the-epidemiology-in-a-region-of-italy
#6
A Notarnicola, G Maccagnano, L Moretti, S Tafuri, B Moretti
Cardiopathies and osteoporosis are inter-related due to pathogenetic, hormonal, genetic features as well as an increased risk of fragility. An important feature is attributed to the process of atherosclerosis, which is responsible for an osteopenia effect and degeneration of vascular walls. To date the study populations have been limited. To verify the incidence of cardio-vascular disease in a larger osteoporotic population, we designed a retrospective clinical study analyzing the “Hospital Discharge Data” (HDD) in Apulia between 2006 and 2010...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337482/efficacy-and-safety-of-novel-digital-single-operator-peroral-cholangioscopy-guided-laser-lithotripsy-for-complicated-biliary-stones
#7
John Ct Wong, Raymond Sy Tang, Anthony Yb Teoh, Joseph Jy Sung, James Yw Lau
Background/study aims Laser lithotripsy can effectively fragment complicated biliary stones, but current cholangioscopes are limited by fragility, restricted mobility or moderate visual resolution. The efficacy and safety of a new digital single-operator peroral cholangioscope to guide laser lithotripsy were evaluated. Patients and methods In this prospective single-center series, consecutive patients with complicated biliary stones, defined as impacted stones > 1.5 cm in size and wider than the more distal common bile duct, or stones that failed extraction by basket mechanical lithotripsy, underwent ERCP and SpyGlass DS peroral cholangioscope (Boston Scientific, Marlborough, United States)-guided laser lithotripsy...
January 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28336444/tool-tissue-interaction-forces-in-brain-arteriovenous-malformation-surgery
#8
Taku Sugiyama, Liu Shi Gan, Kourosh Zareinia, Sanju Lama, Garnette R Sutherland
OBJECTIVE: Surgical resection of a brain arteriovenous malformation (AVM) poses a technical challenge due to the fragility and number of small feeding and draining vessels around the nidus. Acquiring knowledge of optimal force applied to such tissue is important in surgical performance and education. METHODS: A force sensing bipolar forceps was developed through installation of strain gauge sensors, and force profiles were obtained from two AVM surgeries. The force data associated with vessel injury, unsuccessful trial, was compared with that from successful trials...
March 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28336207/heavy-metal-concentrations-in-some-gastropods-and-bivalves-collected-from-the-fishing-zone-of-south-india
#9
A S Ragi, P P Leena, Eldhose Cheriyan, S M Nair
The present study investigates heavy metal concentrations in gastropods and bivalves collected from major fishing centers in South India. Three gastropods, Bursa spinosa, Tibia curta, and Murex trapa, and two bivalves, Perna viridis and Villoritta cyprinoids, were collected for the analysis of heavy metals. The metals in the present study followed the order Mg>Ca>Zn>Fe>Cu>Mn>Cr>Pb>Ni>Co>Cd. Trace metal concentrations in the soft tissue of the molluscs varied as follows: for Cd: 0...
March 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28334806/prognostic-value-of-eus-combined-with-msct-in-predicting-the-recurrence-and-metastasis-of-patients-with-gastric-cancer
#10
Jun-Hua Li, Wei-Zhong Shen, Xiao-Qing Gu, Wei-Kang Hong, Zhi-Qiang Wang
Objective: This study aims to explore the prognostic value of endoscopic ultrasonography combined with multi-slice spiral computed tomography in predicting the recurrence and metastasis of gastric cancer, as well as investigate the correlation of fragile histidine triad protein expression with the tumor-node-metastasis stage of gastric cancer patients. Methods: A total of 81 gastric cancer patients were selected in our study. All patients were examined by endoscopic ultrasonography and multi-slice spiral computed tomography before operation, and gastric cancer tissues and adjacent normal tissues were obtained after operation...
March 10, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334053/new-insights-of-altered-lipid-profile-in-fragile-x-syndrome
#11
Artuela Çaku, Nabil G Seidah, Audrey Lortie, Nancy Gagné, Patrice Perron, Jean Dubé, Francois Corbin
BACKGROUND: Fragile X Syndrome (FXS) is the main genetic cause of autism and intellectual deficiency resulting the absence of the Fragile X Mental Retardation Protein (FMRP). Clinical picture is characterized by cognitive impairment associated with a broad spectrum of psychiatric comorbidities including autism spectrum disorders and attention-deficit/hyperactivity disorders. Some of these disorders have been associated with lipid abnormalities and lower cholesterol levels. Since lipids are important for neuronal development, we aim to investigate the lipid profile of French Canadian-FXS individuals and to identify the altered components of cholesterol metabolism as well as their association with clinical profile...
2017: PloS One
https://www.readbyqxmd.com/read/28330777/altered-visual-repetition-suppression-in-fragile-x-syndrome-new-evidence-from-erps-and-oscillatory-activity
#12
Simon Rigoulot, Inga S Knoth, Marc-Philippe Lafontaine, Phetsamone Vannasing, Philippe Major, Sébastien Jacquemont, Jacques L Michaud, Karim Jerbi, Sarah Lippe
Fragile X Syndrome (FXS) is a neurodevelopmental genetic disorder associated with cognitive and behavioural deficits. In particular, neuronal habituation processes have been shown to be altered in FXS patients. Yet, while such deficits have been primarily explored using auditory stimuli, less is known in the visual modality. Here, we investigated the putative alteration of repetition suppression using faces in FXS patients compared to controls that had the same age distribution. Electroencephalographic (EEG) signals were acquired while participants were presented with 18 different faces, each repeated ten times successively...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28329674/%C3%AE-arrestin2-couples-metabotropic-glutamate-receptor-5-to-neuronal-protein-synthesis-and-is-a-potential-target-to-treat-fragile-x
#13
Laura J Stoppel, Benjamin D Auerbach, Rebecca K Senter, Anthony R Preza, Robert J Lefkowitz, Mark F Bear
Synaptic protein synthesis is essential for modification of the brain by experience and is aberrant in several genetically defined disorders, notably fragile X (FX), a heritable cause of autism and intellectual disability. Neural activity directs local protein synthesis via activation of metabotropic glutamate receptor 5 (mGlu5), yet how mGlu5 couples to the intracellular signaling pathways that regulate mRNA translation is poorly understood. Here, we provide evidence that β-arrestin2 mediates mGlu5-stimulated protein synthesis in the hippocampus and show that genetic reduction of β-arrestin2 corrects aberrant synaptic plasticity and cognition in the Fmr1(-/y) mouse model of FX...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329480/linear-atrophy-and-vascular-fragility-following-ultrasoundguided-triamcinolone-injection-for-dequervain-tendonitis
#14
Hal B Willardson, Shannon Buck, James Neiner
A 64 year-old woman presented with a one-yearhistory of purpuric, atrophic, linear patches alongthe left lateral forearm. The patient had receivedtwo ultrasound-guided triamcinolone injectionsone year earlier into her left extensor pollicis brevisand abductor pollicis longus tendon sheathsfor DeQuervain tendonitis. In the seven monthsfollowing the second injection, the patient developedatrophy, purpura, and telangiectasias starting at thesite of injection and extending proximally, followingthe course of her left cephalic vein...
January 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28327222/accuracy-bias-self-fulfilling-prophecies-and-scientific-self-correction
#15
Lee Jussim
In my Précis of Social Perception and Social Reality (Jussim 2012, henceforth abbreviated as SPSR), I argued that the social science scholarship on social perception and interpersonal expectancies was characterized by a tripartite pattern: (1) Errors, biases, and self-fulfilling prophecies in person perception were generally weak, fragile, and fleeting; (2) Social perceptions were often quite accurate; and (3) Conclusions appearing throughout the social psychology scientific literature routinely overstated the power and pervasiveness of expectancy effects, and ignored evidence of accuracy...
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28327215/perceptions-versus-interpretations-and-domains-for-self-fulfilling-prophesies
#16
Jennifer Church
I suggest two ways in which Jussim's extensive discussion (in his 2012 book) could be enriched: first, by exploring the distinction between perceptual judgments and interpretive judgments; second, by considering the power of expectations to be self-fulfilling in the case of young children and the case of fragile egos.
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28327171/the-association-of-time-and-medications-with-changes-in-bone-mineral-density-in-the-2%C3%A2-years-after-critical-illness
#17
Neil R Orford, Michael Bailey, Rinaldo Bellomo, Julie A Pasco, Claire Cattigan, Tania Elderkin, Sharon L Brennan-Olsen, David J Cooper, Mark A Kotowicz
BACKGROUND: Critical illness is associated with increased risk of fragility fracture and loss of bone mineral density (BMD), although the impact of medication exposures (bone anti-fracture therapy or glucocorticoids) and time remain unexplored. The objective of this study was to describe the association of time after ICU admission, and post-ICU administration of bone anti-fracture therapy or glucocorticoids after critical illness, with change in BMD. METHODS: In this prospective observational study, conducted in a tertiary hospital ICU, we studied adult patients requiring mechanical ventilation for at least 24 hours and measured BMD annually for 2 years after ICU discharge...
March 21, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28326556/digital-atmospheres-affective-practices-of-care-in-elefriends
#18
Ian M Tucker, Lewis Goodings
This article develops the concept of digital atmosphere to analyse the affective power of social media to shape practices of care and support for people living with mental distress. Using contemporary accounts of affective atmospheres, the article focuses on feelings of distress, support and care that unfold through digital atmospheres. The power of social media intersects with people's support and care-seeking practices in multiple ways and not in a straightforward model of 'accessing or providing support'...
March 22, 2017: Sociology of Health & Illness
https://www.readbyqxmd.com/read/28326553/hypoxemia-after-single-shot-anesthesia-in-common-marmosets
#19
Naho Konoike, Miki Miwa, Akiyo Ishigami, Katsuki Nakamura
BACKGROUND: It remains unknown how single-shot anesthesia influences physical parameters, especially respiratory function and blood oxygen level of common marmosets (Callithrix jacchus) which came to be used for laboratory research. METHODS: We measured blood oxygen levels, both before and after oxygenation, in 13 common marmosets under two single-shot anesthesia conditions: ketamine/xylazine/atropine and alphaxalone. RESULTS AND CONCLUSIONS: We found that SpO2 values decreased to about 80% in the ketamine/xylazine/atropine protocol and fell just below 90% in the alphaxalone protocol...
March 21, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28326338/predictors-of-teriparatide-treatment-failure-in-patients-with-low-bone-mass
#20
Tarig Elraiyah, Adil H Ahmed, Zhen Wang, Joshua N Farr, Mohammad H Murad, Matthew T Drake
INTRODUCTION: While teriparatide is the only skeletal anabolic agent approved in the United States, treatment failure is a major concern which complicates its clinical utility. We sought to identify factors that predict response failure in patients with low bone mass. METHOD: We performed a retrospective study of adults with osteopenia or osteoporosis (T-scores < - 1.0 and - 2.5 SD below normal, respectively, at the total hip or lumbar spine) treated with teriparatide at the Mayo Clinic (Rochester, Minnesota) between November 2002-December 2012...
June 2016: Bone Reports
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