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Total 601 results found since Jan 2013.

Hyaluronan, neural stem cells and tissue reconstruction after acute ischemic stroke.
Authors: Moshayedi P, Carmichael ST Abstract Focal stroke is a disabling disease with lifelong sensory, motor and cognitive impairments. Given the paucity of effective clinical treatments, basic scientists are developing novel options for protection of the affected brain and regeneration of lost tissue. Tissue bioengineering and stem/progenitor cell treatments have both been individually pursued for stroke neural repair therapies, with some benefit in tissue recovery. Emerging directions in stroke neural repair approaches combine these two therapies to use biopolymers with stem/progenitor transplants to promote gre...
Source: Biomatter - November 20, 2015 Category: Biotechnology Tags: Biomatter Source Type: research

Alabama launches rapid response to stroke system
A new system has been set up to help stroke victims as quickly as possible in Alabama. The Alabama Department of Public Health and the Office of Emergency Medical Services launched the Statewide Stroke System, effective Oct. 30. “This system presents a greatly enhanced opportunity to improve stroke care,” said Acting State Health Officer Dr. Scott Harris. “One of the most fru strating things to a physician is when a patient presents to the hospital too late to qualify for stroke treatment.…
Source: bizjournals.com Health Care:Biotechnology headlines - November 3, 2017 Category: Biotechnology Authors: Hanno van der Bijl Source Type: news

Low Doses of G-CSF Prevent Cerebral Infarction and 1 Maintain Muscle Strength in an Experimental Model of 2 Global Ischemic Stroke 3.
CONCLUSIONS: The results indicate a neuroprotective effect of G-CSF, even in small doses, in mice subjected to global cerebral ischemia, thereby reducing the neurofunctional impairment caused by stroke, when considering the maintenance of muscle strength in the treated animals. PMID: 30019642 [PubMed - as supplied by publisher]
Source: Current Pharmaceutical Biotechnology - July 17, 2018 Category: Biotechnology Authors: da Ros Peruch B, Monteiro BL, Aires R, Martins E Silva C, Guimaraes MCC, Vasquez EC, Nogueira BV Tags: Curr Pharm Biotechnol Source Type: research

A new era in stroke care gives larger treatment window and better outcomes
According to the American Heart/American Stroke Association, stroke affects nearly 800,000 people in the United States each year. It is the fifth leading cause of death, and the leading cause of long-term disability.  It’s also the leading cause of preventable disability. In China it is the leading cause of death surpassing both cancer and heart disease. Stroke occurs when a blood vessel carrying oxygen and nutrients to the brain is either blocked by a blood clot or plaque (ischemic stroke), or…
Source: bizjournals.com Health Care:Biotechnology headlines - August 15, 2018 Category: Biotechnology Authors: Alexandria Foley Source Type: news

Sensors, Vol. 18, Pages 4107: Compressibility of High-Density EEG Signals in Stroke Patients
sco C. Morabito Stroke is a critical event that causes the disruption of neural connections. There is increasing evidence that the brain tries to reorganize itself and to replace the damaged circuits, by establishing compensatory pathways. Intra- and extra-cellular currents are involved in the communication between neurons and the macroscopic effects of such currents can be detected at the scalp through electroencephalographic (EEG) sensors. EEG can be used to study the lesions in the brain indirectly, by studying their effects on the brain electrical activity. The primary goal of the present work was to investigate po...
Source: Sensors - November 23, 2018 Category: Biotechnology Authors: Nadia Mammone Simona De Salvo Cosimo Ieracitano Silvia Marino Emanuele Cartella Alessia Bramanti Roberto Giorgianni Francesco C. Morabito Tags: Article Source Type: research

Sensors, Vol. 19, Pages 657: The Use of Wearable Sensors for the Movement Assessment on Muscle Contraction Sequences in Post-Stroke Patients during Sit-to-Stand
n-Nien Chou Electromyography (EMG) sensors have been used to study the sequence of muscle contractions during sit-to-stand (STS) in post-stroke patients. However, the majority of the studies used wired sensors with a limited number of placements. Using the latest improved wearable technology with 16 sensors, the current study was a thorough investigation to evaluate the contraction sequences of eight key muscles on the trunk and bilateral limbs during STS in post-stroke patients, as it became feasible. Multiple wearable sensors for the detection of muscle contraction sequences showed that the post-stroke patients perfo...
Source: Sensors - February 6, 2019 Category: Biotechnology Authors: Wei-Chun Hsu Chao-Chin Chang Yi-Jia Lin Fu-Chi Yang Li-Fong Lin Kuan-Nien Chou Tags: Article Source Type: research

Sensors, Vol. 19, Pages 2533: Point-of-Care Surface Plasmon Resonance Biosensor for Stroke Biomarkers NT-proBNP and S100 β Using a Functionalized Gold Chip with Specific Antibody
In this study, a functionalized specific SPR chip was designed and used in a novel point-of-care SPR module (PhotonicSys SPR H5) for the detection of the stroke biomarkers NT-proBNP and S100β. These biomarkers have proven to be good for stroke diagnosis, with sensitivity and specificity of >85%. Specific detection was done by binding a biomolecular-recognizing antibody onto the Au SPR-chip. Detection was tested in water and plasma samples. NT-proBNP and S100β were detected in a range of concentrations for stroke, from 0.1 ng/mL to 10 ng/mL. The RI of the blank plasma samples was 1.36241...
Source: Sensors - June 2, 2019 Category: Biotechnology Authors: Dorin Harpaz Brescia Koh Robert S. Marks Raymond C.S. Seet Ibrahim Abdulhalim Alfred I.Y. Tok Tags: Article Source Type: research

Sensors, Vol. 20, Pages 840: Experimental Validation of Microwave Tomography with the DBIM-TwIST Algorithm for Brain Stroke Detection and Classification
We present an initial experimental validation of a microwave tomography (MWT) prototypefor brain stroke detection and classification using the distorted Born iterative method, two-stepiterative shrinkage thresholding (DBIM-TwIST) algorithm. The validation study consists of firstpreparing and characterizing gel phantoms which mimic the structure and the dielectric propertiesof a simplified brain model with a haemorrhagic or ischemic stroke target. Then, we measure theS-parameters of the phantoms in our experimental prototype and process the scattered signals from 0.5to 2.5 GHz using the DBIM-TwIST algorithm to estimate the ...
Source: Sensors - February 3, 2020 Category: Biotechnology Authors: Karadima Rahman Sotiriou Ghavami Lu Ahsan Kosmas Tags: Article Source Type: research

Sensors, Vol. 20, Pages 1148: Weak Knock Characteristic Extraction of a Two-Stroke Spark Ignition UAV Engine Burning RP-3 Kerosene Fuel Based on Intrinsic Modal Functions Energy Method
Liu To solve the problem of the weak knock characteristic extraction for a port-injected two-stoke spark ignition (SI) unmanned aerial vehicle (UAV) engine burning aviation kerosene fuel, which is also known as the Rocket Propellant 3 (RP-3), the Intrinsic modal Functions Energy (IMFE) method is proposed according to the orthogonality of the intrinsic modal functions (IMFs). In this method, engine block vibration signals of the two-stroke SI UAV engine are decomposed into a finite number of intrinsic modal function (IMF) components. Then, the energy weight value of each IMF component is calculated, and the IMF compo...
Source: Sensors - February 18, 2020 Category: Biotechnology Authors: Sheng Liu Liu Tags: Article Source Type: research

Sensors, Vol. 20, Pages 3063: A Novel Singular Value Decomposition-Based Denoising Method in 4-Dimensional Computed Tomography of the Brain in Stroke Patients with Statistical Evaluation
Young-Jin Jung Computed tomography (CT) is a widely used medical imaging modality for diagnosing various diseases. Among CT techniques, 4-dimensional CT perfusion (4D-CTP) of the brain is established in most centers for diagnosing strokes and is considered the gold standard for hyperacute stroke diagnosis. However, because the detrimental effects of high radiation doses from 4D-CTP may cause serious health risks in stroke survivors, our research team aimed to introduce a novel image-processing technique. Our singular value decomposition (SVD)-based image-processing technique can improve image quality, first, by sepa...
Source: Sensors - May 27, 2020 Category: Biotechnology Authors: Wonseok Yang Jun-Yong Hong Jeong-Youn Kim Seung-ho Paik Seung Hyun Lee Ji-Su Park Gihyoun Lee Beop Min Kim Young-Jin Jung Tags: Article Source Type: research

Sensors, Vol. 20, Pages 3399: Gait Event Detection for Stroke Patients during Robot-Assisted Gait Training
eorg Rose Functional electrical stimulation and robot-assisted gait training are techniques which are used in a clinical routine to enhance the rehabilitation process of stroke patients. By combining these technologies, therapy effects could be further improved and the rehabilitation process can be supported. In order to combine these technologies, a novel algorithm was developed, which aims to extract gait events based on movement data recorded with inertial measurement units. In perspective, the extracted gait events can be used to trigger functional electrical stimulation during robot-assisted gait training. This ap...
Source: Sensors - June 15, 2020 Category: Biotechnology Authors: Andreas Schicketmueller Juliane Lamprecht Marc Hofmann Michael Sailer Georg Rose Tags: Letter Source Type: research

Repetitive Transcranial Magnetic Stimulation With H ‐Coil Coupled With Cycling for Improving Lower Limb Motor Function After Stroke: An Exploratory Study
ConclusionsThis exploratory study suggests that bilateral HF ‐rTMS combined with cycling is safe and potentially effective in ameliorating paretic LE motor function and spasticity, rather than gait speed or endurance, in chronic stroke.
Source: Neuromodulation: Technology at the Neural Interface - July 28, 2020 Category: Biotechnology Authors: Raffaella Chieffo, Fabio Giatsidis, Roberto Santangelo, Uri Alyagon, Mauro Comola, Abraham Zangen, Giancarlo Comi, Letizia Leocani Tags: Clinical Research Source Type: research

Sensors, Vol. 21, Pages 234: Model Evaluation of the Influence of the Plunger Stroke on Functional Parameters of the Low-Pressure Pulse Gas Solenoid Injector
er The article presents a model-based evaluation of the impact of the plunger stroke on functional parameters of the low-pressure pulse gas solenoid injector. A reduced-order physics-based mathematical model was used to achieve this goal. The model was built on the basis of specified simplifications of the process, considering the forces that cause the plunger to move and the forces constituting resistance to its displacement. The implementation of a mathematical description in to the Matlab-Simulink environment allowed one to determine the characteristic values of operation of the Valtek Rail Type-30 injector, includi...
Source: Sensors - January 1, 2021 Category: Biotechnology Authors: Dariusz Szpica Micha ł Kusznier Tags: Article Source Type: research

Sensors, Vol. 21, Pages 799: Exploration of Human Activity Recognition Using a Single Sensor for Stroke Survivors and Able-Bodied People
Toshiyo Tamura Wei Chen Commonly used sensors like accelerometers, gyroscopes, surface electromyography sensors, etc., which provide a convenient and practical solution for human activity recognition (HAR), have gained extensive attention. However, which kind of sensor can provide adequate information in achieving a satisfactory performance, or whether the position of a single sensor would play a significant effect on the performance in HAR are sparsely studied. In this paper, a comparative study to fully investigate the performance of the aforementioned sensors for classifying four activities (walking, tooth brushin...
Source: Sensors - January 26, 2021 Category: Biotechnology Authors: Long Meng Anjing Zhang Chen Chen Xingwei Wang Xinyu Jiang Linkai Tao Jiahao Fan Xuejiao Wu Chenyun Dai Yiyuan Zhang Bart Vanrumste Toshiyo Tamura Wei Chen Tags: Article Source Type: research

Sensors, Vol. 21, Pages 4066: Wearable Activity Monitoring in Day-to-Day Stroke Care: A Promising Tool but Not Widely Used
In conclusion, although the concept of remote activity monitoring was perceived as useful, it was not widely adopted by physical therapists involved in stroke care. To date, skills, beliefs, and attitudes of individual therapists determine the current use of wearable technology.
Source: Sensors - June 12, 2021 Category: Biotechnology Authors: Hanneke E. M. Braakhuis Johannes B. J. Bussmann Gerard M. Ribbers Monique A. M. Berger Tags: Communication Source Type: research