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https://www.readbyqxmd.com/read/28814025/learning-from-demonstration-teaching-a-myoelectric-prosthesis-with-an-intact-limb-via-reinforcement-learning
#1
Gautham Vasan, Patrick M Pilarski
Prosthetic arms should restore and extend the capabilities of someone with an amputation. They should move naturally and be able to perform elegant, coordinated movements that approximate those of a biological arm. Despite these objectives, the control of modern-day prostheses is often nonintuitive and taxing. Existing devices and control approaches do not yet give users the ability to effect highly synergistic movements during their daily-life control of a prosthetic device. As a step towards improving the control of prosthetic arms and hands, we introduce an intuitive approach to training a prosthetic control system that helps a user achieve hard-to-engineer control behaviours...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813901/adaptive-control-based-on-an-on-line-parameter-estimation-of-an-upper-limb-exoskeleton
#2
Akram Riani, Tarek Madani, Abdelhafid El Hadri, Abdelaziz Benallegue
This paper presents an adaptive control strategy for an upper-limb exoskeleton based on an on-line dynamic parameter estimator. The objective is to improve the control performance of this system that plays a critical role in assisting patients for shoulder, elbow and wrist joint movements. In general, the dynamic parameters of the human limb are unknown and differ from a person to another, which degrade the performances of the exoskeleton-human control system. For this reason, the proposed control scheme contains a supplementary loop based on a new efficient on-line estimator of the dynamic parameters...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813873/automation-of-motor-dexterity-assessment
#3
Patrick Heyer, Luis R Castrejon, Felipe Orihuela-Espina, Luis Enrique Sucar
Motor dexterity assessment is regularly performed in rehabilitation wards to establish patient status and automatization for such routinary task is sought. A system for automatizing the assessment of motor dexterity based on the Fugl-Meyer scale and with loose restrictions on sensing technologies is presented. The system consists of two main elements: 1) A data representation that abstracts the low level information obtained from a variety of sensors, into a highly separable low dimensionality encoding employing t-distributed Stochastic Neighbourhood Embedding, and, 2) central to this communication, a multi-label classifier that boosts classification rates by exploiting the fact that the classes corresponding to the individual exercises are naturally organized as a network...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813651/a-rogue-foxp3-mutant-undermines-treg-cell-function
#4
Ye Zheng
Hayatsu et al. (2017) reveal that a FOXP3 mutant found in some patients afflicted with the autoimmune disease IPEX has broadened DNA-recognition specificity, directly repressing the expression of the gene encoding the transcription factor Batf. Their findings identify Batf as critical to tissue regulatory T cell function and suggest that polymorphisms that impact FOXP3 DNA-binding specificity may contribute susceptibility to autoimmune disease.
August 15, 2017: Immunity
https://www.readbyqxmd.com/read/28813523/et-26-hydrochloride-et-26-hcl-has-similar-hemodynamic-stability-to-that-of-etomidate-in-normal-and-uncontrolled-hemorrhagic-shock-uhs-rats
#5
Bin Wang, Shouming Chen, Jun Yang, Linghui Yang, Jin Liu, Wensheng Zhang
OBJECTIVE: ET-26 HCl is a promising sedative-hypnotic anesthetic with virtually no effect on adrenocortical steroid synthesis. However, whether or not ET-26 HCl also has a sufficiently wide safety margin and hemodynamic stability similar to that of etomidate and related compounds remains unknown. In this study, the effects of ET-26 HCl, etomidate and propofol on therapeutic index, heart rate (HR), mean arterial pressure (MAP), maximal rate for left ventricular pressure rise (Dmax/t), and maximal rate for left ventricular pressure decline (Dmin/t) were investigated in healthy rats and a rat model of uncontrolled hemorrhagic shock (UHS)...
2017: PloS One
https://www.readbyqxmd.com/read/28813465/long-term-persistent-infection-of-hpv-16-e6-up-regulate-sp1-and-htert-by-inhibiting-lkb1-in-lung-cancer-cells
#6
Jing-Hua Yang, Xiao-Yan Li, Xin Wang, Wei-Jian Hou, Xue-Shan Qiu, En-Hua Wang, Guang-Ping Wu
HPV 16 E6 upregulates hTERT expression in lung cancer cells. However, the underlying molecular mechanism is unclear. In this paper, E6, LKB1, SP1, and hTERT mRNA expression levels were detected in brushing cells of patients with lung cancer (n = 106) and with benign lung disease (n = 68) by qRT-PCR. The mRNA expression levels of E6, SP1, and hTERT were significantly increased in the malignant group compared with the benign group (P < 0.01). Conversely, the mRNA expression level of LKB1 was significantly decreased in the malignant group (P < 0...
2017: PloS One
https://www.readbyqxmd.com/read/28813205/combining-2-commonly-adopted-nutrition-instruments-in-the-critical-care-setting-is-superior-to-administering-either-one-alone
#7
Charles Chin Han Lew, Ka Po Cheung, Mary Foong Fong Chong, Ai Ping Chua, Robert J L Fraser, Michelle Miller
BACKGROUND: This study aimed to determine the agreement between the modified Nutrition Risk in Critically ill Score (mNUTRIC) and the Subjective Global Assessment (SGA) and compare their ability in discriminating and quantifying mortality risk independently and in combination. METHODS: Between August 2015 and October 2016, all patients in a Singaporean hospital received the SGA within 48 hours of intensive care unit admission. Nutrition status was dichotomized into presence or absence of malnutrition...
August 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28813183/quality-of-life-in-children-with-orofacial-clefts-and-caregiver-well-being
#8
L Sischo, M Wilson-Genderson, H L Broder
Quality of life is a valid patient-reported parameter that provides an assessment of treatment need or outcomes complementary to standard clinical measures. Such patient-reported assessments are particularly salient when examining chronic conditions with prolonged treatment trajectories, such as cleft lip and palate. This critical review identifies key questions related to ongoing research on the oral health-related quality of life (OHRQoL) in children with cleft and caregiver well-being. Details of the design and results from 2 longitudinal multicenter studies are presented...
August 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28812535/associating-mutations-causing-cystinuria-with-disease-severity-with-the-aim-of-providing-precision-medicine
#9
Henry J Martell, Kathie A Wong, Juan F Martin, Ziyan Kassam, Kay Thomas, Mark N Wass
BACKGROUND: Cystinuria is an inherited disease that results in the formation of cystine stones in the kidney, which can have serious health complications. Two genes (SLC7A9 and SLC3A1) that form an amino acid transporter are known to be responsible for the disease. Variants that cause the disease disrupt amino acid transport across the cell membrane, leading to the build-up of relatively insoluble cystine, resulting in formation of stones. Assessing the effects of each mutation is critical in order to provide tailored treatment options for patients...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28812302/management-of-sleep-wake-disturbances-comorbid-with-cancer
#10
Ann M Berger, Ellyn E Matthews, Ashley M Kenkel
It is critical that clinicians and healthcare systems adopt routine screening and affordable interventions to reduce chronic insomnia and improve the quality of life in cancer patients and survivors. We provide expert clinical advice on how to manage sleep-wake disturbances that occur comorbidly with cancer. Our discussion focuses on the etiology, screening, and assessment of sleep-wake disturbances, and on both nonpharmacologic and pharmacologic interventions to manage sleep disturbances, insomnia, and sleep-related breathing disorders...
August 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28812241/plasma-glycoproteomic-study-of-therapeutic-hypothermia-reveals-novel-markers-predicting-neurologic-outcome-post-cardiac-arrest
#11
Wenjun Deng, Jing Cao, Lei Chen, David McMullin, James L Januzzi, Ferdinando S Buonanno, Eng H Lo, MingMing Ning
Therapeutic hypothermia (TH) is a neuroprotective treatment post-cardiac arrest but is grossly underutilized. After TH induction, traditional biomarkers and parameters can no long predict clinical outcome due to a lack of understanding of hypothermic response. Innovative approaches to better understand the clinical effect of TH will help to prognosticate outcome and expand beneficial population. Protein glycosylation is an important extracellular post-translational modification, regulating various extracellular signaling pathways...
August 15, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28812224/risk-factors-for-totally-implantable-venous-access-device-associated-complications-in-cystic-fibrosis
#12
C McCarthy, O O'Carroll, M E O'Brien, T McEnery, A Franciosi, C Gunaratnam, N G McElvaney
BACKGROUND: Candidaemia is an important nosocomial infection, seen frequently in immunocompromised and critically ill patients and increasingly recognised in cystic fibrosis (CF) patients with totally implantable venous access devices (TIVADs). This study aims to investigate the incidence and risk factors for the development of TIVAD-associated candidaemia and to assess the rate of TIVAD-related complications in CF patients. METHODS: A 10-year retrospective study was carried out on adult CF patients attending a single centre...
August 15, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28812212/obesity-treatment-with-botulinum-toxin-a-is-not-effective-a-systematic-review-and-meta-analysis
#13
REVIEW
Fabio Bustamante, Vitor Ottoboni Brunaldi, Wanderley Marques Bernardo, Diogo Turiani H de Moura, Eduardo Turiani H de Moura, Manoel Galvão, Marco Aurélio Santo, Eduardo Guimarães H de Moura
The effectiveness of gastric injections of botulinum toxin-A (BTA) as primary treatment for obesity is not well known since results in literature are discrepant. Hence, we aimed to systematically review and meta-analyze the available data to assess the real effect of BTA therapy. We searched MEDLINE, Embase, Cochrane, SCOPUS, EBSCO, LILACS, and BVS. We considered eligible only randomized controlled trials enrolling obese patients comparing BTA versus saline injections. Our initial search identified 8811 records...
August 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28812156/accredited-residents-perform-colonoscopy-to-the-same-high-standards-as-consultants
#14
Dedrick Kok Hong Chan, Reuben Kong Min Wong, Khay Guan Yeoh, Ker-Kan Tan
BACKGROUND: Endoscopy remains a critical component of General Surgery and Gastroenterology training. Whilst residents need to gain experience, the quality of endoscopy which patients receive cannot be compromised. We conducted this study to compare quality indicators between consultants and residents with regards to colonoscopy. METHODS: A review of colonoscopies from a prospectively collected database was performed from September 2011 to February 2016. Quality indicators such as caecum intubation rate, adenoma detection rate, adherence to a 6-min withdrawal rule, mean number of polyps detected per colonoscope, and complications were collected and compared between the two groups...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812147/can-polyp-detection-rate-be-used-prospectively-as-a-marker-of-adenoma-detection-rate
#15
Brent Murchie, Kanwarpreet Tandon, Shamiq Zackria, Steven D Wexner, Colin O'Rourke, Fernando J Castro
BACKGROUND: Adenoma detection rate (ADR) is a quality indicator for screening colonoscopy, but its calculation is time-consuming. Polyp detection rate (PDR) has been found to correlate with ADR; however, its use as a quality indicator has been criticized out of concern for endoscopists artificially inflating the PDR. We aim to evaluate whether active monitoring affects PDR. METHODS: In March 2015, 14 endoscopists were made aware that their personal PDRs would be tracked monthly as a quality improvement project...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812106/-costs-associated-with-multiresistant-bacteria-in-neurorehabilitation
#16
REVIEW
Robin Roukens, Frank Lauster, Maria Bara, Bernd Eifert, Dietrich Willemsen, Thomas Randall, Jürgen Herzog, Constanze Wendt, Tobias Schmidt-Wilcke, Stefan Knecht
BACKGROUND AND OBJECTIVES: The number of patients with multiresistant bacteria (MRB) in rehabilitation facilities is increasing. The increasing costs of hygienic isolation measures reduce resources available for core rehabilitation services. In addition to the existing lack of care, patients with MRB are at further risk of being given lower priority for admission to rehabilitation facilities. Therefore, the Hygiene Commission of the German Society for Neurorehabilitation (DGNR) attempted to quantify the overall risk for deterioration of rehabilitation care due to the financial burden of MRB...
August 15, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28812042/visual-outcomes-24%C3%A2-months-after-laserace
#17
AnnMarie Hipsley, David Hui-Kang Ma, Chi-Chin Sun, Mitchell A Jackson, Daniel Goldberg, Brad Hall
BACKGROUND: To evaluate the effects on near and intermediate visual performance after bilateral Laser Anterior Ciliary Excision (LaserACE) procedure. METHODS: LaserACE surgery was performed using the VisioLite 2.94 μm erbium: yttrium-aluminum-garnet (Er:YAG) ophthalmic laser system in 4 oblique quadrants on the sclera over the ciliary muscle in 3 critical zones of physiological importance (over the ciliary muscles and posterior zonules) with the aim to improve natural dynamic accommodative forces...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28811717/modified-b-ultrasound-method-for-measurement-of-antral-section-only-to-assess-gastric-function-and-guide-enteral-nutrition-in-critically-ill-patients
#18
Ying Liu, Ya-Kun Gao, Lei Yao, Li Li
AIM: To establish a modified B-ultrasound method of measuring the antral section only to assess gastric motility in healthy people, and evaluate its application in guiding enteral nutrition (EN) in critically ill patients. METHODS: First, 30 healthy volunteers were selected. The modified B-ultrasound method and the traditional B-ultrasound method were applied to assess gastric function. The correlation of indices of gastric function between the two groups was analyzed statistically...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811578/an-epithelial-to-mesenchymal-transition-inducing-potential-of-granulocyte-macrophage-colony-stimulating-factor-in-colon-cancer
#19
Yaqiong Chen, Zhi Zhao, Yu Chen, Zhonglin Lv, Xin Ding, Renxi Wang, He Xiao, Chunmei Hou, Beifen Shen, Jiannan Feng, Renfeng Guo, Yan Li, Hui Peng, Gencheng Han, Guojiang Chen
Growing evidence shows that granulocyte macrophage colony-stimulating factor (GM-CSF) has progression-promoting potentials in certain solid tumors, which is largely attributed to the immunomodulatory function of this cytokine in tumor niches. However, little is known about the effect of GM-CSF on cancer cells. Herein, we show that chronic exposure of colon cancer cells to GM-CSF, which harbor its receptor, leads to occurrence of epithelial to mesenchymal transition (EMT), in time and dose-dependent manners...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811549/diagnosing-peri-implant-disease-using-the-tongue-as-a-24-7-detector
#20
J Ritzer, T Lühmann, C Rode, M Pein-Hackelbusch, I Immohr, U Schedler, T Thiele, S Stübinger, B V Rechenberg, J Waser-Althaus, F Schlottig, M Merli, H Dawe, M Karpíšek, R Wyrwa, M Schnabelrauch, L Meinel
Our ability of screening broad communities for clinically asymptomatic diseases critically drives population health. Sensory chewing gums are presented targeting the tongue as 24/7 detector allowing diagnosis by "anyone, anywhere, anytime". The chewing gum contains peptide sensors consisting of a protease cleavable linker in between a bitter substance and a microparticle. Matrix metalloproteinases in the oral cavity, as upregulated in peri-implant disease, specifically target the protease cleavable linker while chewing the gum, thereby generating bitterness for detection by the tongue...
August 15, 2017: Nature Communications
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