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https://www.readbyqxmd.com/read/29458076/bone-marrow-mesenchymal-stem-cells-bmscs-improved-functional-recovery-of-spinal-cord-injury-partly-by-promoting-axonal-regeneration
#1
REVIEW
Liya Lin, Hefeng Lin, Shi Bai, Lianshun Zheng, Xiaoming Zhang
Spinal cord injury (SCI) disrupts the spinal cord and results in the loss of sensory and motor function below the lesion site. The treatment of SCI became a challenge because the injured neurons fail to axon regenerate and repair after injury. Promoting axonal regeneration plays a key role in the treatment strategies for SCI. It would meet the goal of reconstruction the injured spinal cord and improving the functional recovery. Bone marrow mesenchymal stem cells (BMSCs) are attractive therapeutic potential cell sources for SCI, and it could rebuild the injured spinal cord through neuroprotection, neural regeneration and remyelinating...
February 16, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29454137/mechanisms-and-management-of-refractory-ventricular-arrhythmias-in-the-age-of-autonomic-modulation
#2
Jason S Bradfield, Olujimi A Ajijola, Marmar Vaseghi, Kalyanam Shivkumar
Ventricular arrhythmias are responsible for hundreds of thousands of deaths every year. Catheter ablation of ventricular tachycardia (VT) is an essential component of the management of these life-threatening arrhythmias. However, in many patients, despite medical and interventional therapy, VT recurs. Further, some VT substrates (mid-myocardial, left ventricular summit, intra-septal) are not easily targeted, due to limitations of currently available technology. In certain clinical settings, ventricular fibrillation (VF) episodes that have premature ventricular contraction (PVC) triggers can also be targeted with catheter ablation...
February 14, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29451994/stroop-task-related-brain-activity-in-patients-with-insomnia-changes-after-cognitive-behavioral-therapy-for-insomnia
#3
Jeong Yeon Hwang, Nambeom Kim, Soohyun Kim, Juhyun Park, Jae-Won Choi, Seog Ju Kim, Chang-Ki Kang, Yu Jin Lee
OBJECTIVE/BACKGROUND: In the present study, we compared differences in brain activity during the Stroop task between patients with chronic insomnia disorder (CID) and good sleepers (GS). Furthermore, we evaluated changes in Stroop task-related brain activity after cognitive-behavioral therapy for insomnia (CBT-I). PARTICIPANTS/METHODS: The final analysis included 21 patients with CID and 25 GS. All participants underwent functional magnetic resonance imaging (fMRI) while performing the color-word Stroop task...
February 16, 2018: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/29451202/stem-cells-for-spinal-cord-injuries-bearing-translational-potential
#4
REVIEW
Kyriakos Dalamagkas, Magdalini Tsintou, Alexander M Seifalian
Spinal cord injury (SCI) is a highly debilitating neurological disease, which still lacks effective treatment strategies, causing significant financial burden and distress to the affected families. Nevertheless, nanotechnology and regenerative medicine strategies holding promise for the development of novel therapies that would reach from bench to bedside to serve the SCI patients. There has already been significant progress in the field of cell-based therapies, with the clinical application for SCI, currently in phase II of the clinical trial...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29451199/brain-injury-and-neural-stem-cells
#5
REVIEW
Parker E Ludwig, Finosh G Thankam, Arun A Patil, Andrea J Chamczuk, Devendra K Agrawal
Many therapies with potential for treatment of brain injury have been investigated. Few types of cells have spurred as much interest and excitement as stem cells over the past few decades. The multipotentiality and self-renewing characteristics of stem cells confer upon them the capability to regenerate lost tissue in ischemic or degenerative conditions as well as trauma. While stem cells have not yet proven to be clinically effective in many such conditions as was once hoped, they have demonstrated some effects that could be manipulated for clinical benefit...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29450981/nurr1-promotes-neurogenesis-of-dopaminergic-neuron-and-represses-inflammatory-factors-in-the-transwell-coculture-system-of-neural-stem-cells-and-microglia
#6
Xiaoxiang Chen, Yuan Qian, Xiangpeng Wang, Zhiwei Tang, Jiaotian Xu, Hai Lin, Zhiyong Yang, Xiaobin Song, Di Lu, Jiazhi Guo, Ligong Bian, Yu Li, Lei Zhou, Xingli Deng
INTRODUCTION: Neural stem cells (NSCs) are the most promising cells for cell replacement therapy for Parkinson's disease (PD). However, a majority of the transplanted NSCs differentiated into glial cells, thereby limiting the clinical application. Previous studies indicated that chronic neuroinflammation plays a vital role in the degeneration of midbrain DA (mDA) neurons, which suggested the developing potential of therapies for PD by targeting the inflammatory processes. Thus, Nurr1 (nuclear receptor-related factor 1), a transcription factor, has been referred to play a pivotal role in both the differentiation of dopaminergic neurons in embryonic stages and the maintenance of the dopaminergic phenotype throughout life...
February 15, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29450843/detection-of-lung-contour-with-closed-principal-curve-and-machine-learning
#7
Tao Peng, Yihuai Wang, Thomas Canhao Xu, Lianmin Shi, Jianwu Jiang, Shilang Zhu
Radiation therapy plays an essential role in the treatment of cancer. In radiation therapy, the ideal radiation doses are delivered to the observed tumor while not affecting neighboring normal tissues. In three-dimensional computed tomography (3D-CT) scans, the contours of tumors and organs-at-risk (OARs) are often manually delineated by radiologists. The task is complicated and time-consuming, and the manually delineated results will be variable from different radiologists. We propose a semi-supervised contour detection algorithm, which firstly uses a few points of region of interest (ROI) as an approximate initialization...
February 15, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29449193/phase-i-trial-of-intrathecal-mesenchymal-stem-cell-derived-neural-progenitors-in-progressive-multiple-sclerosis
#8
Violaine K Harris, James Stark, Tamara Vyshkina, Leslie Blackshear, Gloria Joo, Valentina Stefanova, Gabriel Sara, Saud A Sadiq
BACKGROUND: Multiple sclerosis (MS) is an immune-mediated demyelinating disease of the central nervous system and is one of the leading causes of disability in young adults. Cell therapy is emerging as a therapeutic strategy to promote repair and regeneration in patients with disability associated with progressive MS. METHODS: We conducted a phase I open-label clinical trial investigating the safety and tolerability of autologous bone marrow mesenchymal stem cell-derived neural progenitor (MSC-NP) treatment in 20 patients with progressive MS...
February 3, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29449086/progress-in-the-use-of-dental-pulp-stem-cells-in-regenerative-medicine
#9
REVIEW
Eduardo Anitua, María Troya, Mar Zalduendo
The field of tissue engineering is emerging as a multidisciplinary area with promising potential for regenerating new tissues and organs. This approach requires the involvement of three essential components: stem cells, scaffolds and growth factors. To date, dental pulp stem cells have received special attention because they represent a readily accessible source of stem cells. Their high plasticity and multipotential capacity to differentiate into a large array of tissues can be explained by its neural crest origin, which supports applications beyond the scope of oral tissues...
February 12, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29447778/the-effect-of-high-dose-atorvastatin-on-neural-activity-and-cognitive-function
#10
Beth A Taylor, Alecia D Dager, Gregory A Panza, Amanda L Zaleski, Shashwath Meda, Gregory Book, Michael C Stevens, Sarah Tartar, C Michael White, Donna M Polk, Godfrey D Pearlson, Paul D Thompson
BACKGROUND: Functional magnetic resonance imaging (fMRI) has not been used to assess the effects of statins on the brain. We assessed the effect of statins on cognition using standard neuropsychological assessments and brain neural activation with fMRI on two tasks. METHODS: Healthy statin-naïve men and women (48±15 years) were randomized to 80 mg/day atorvastatin (n=66; 27 men) or placebo (n=84; 48 men) for 6 months. Participants completed cognitive testing while on study drug and 2 months after treatment cessation using alternative test and task versions...
March 2018: American Heart Journal
https://www.readbyqxmd.com/read/29445770/subthalamic-neural-activity-patterns-anticipate-economic-risk-decisions-in-gambling
#11
A Mazzoni, M Rosa, J Carpaneto, L M Romito, A Priori, S Micera
Economic decision-making is disrupted in individuals with gambling disorder, an addictive behavior observed in Parkinson's disease (PD) patients receiving dopaminergic therapy. The subthalamic nucleus (STN) is involved in the inhibition of impulsive behaviors; however, its role in impulse control disorders and addiction is still unclear. Here, we recorded STN local field potentials (LFPs) in PD patients with and without gambling disorder during an economic decision-making task. Reaction times analysis showed that for all patients, the decision whether to risk preceded task onset...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29445463/resolving-bulimia-nervosa-using-an-innovative-neural-therapy-approach-two-case-reports
#12
Michael I Gurevich, Myung Kyu Chung, Patrick J LaRiccia
Conventional treatment of Bulimia Nervosa is long term, expensive, and often ineffective. Neural therapy holds promise for treating Bulimia Nervosa in a shorter term, lower cost, and more effective manner. Much of neural therapy involves the superficial injection of local anesthetic injections. Implementation into current practice would be feasible.
February 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29445148/temporal-requirements-for-isl1-in-sympathetic-neuron-proliferation-differentiation-and-diversification
#13
Qingquan Zhang, Ru Huang, Youqiong Ye, Xiaoxia Guo, Jun Lu, Fugui Zhu, Xiaohui Gong, Qitong Zhang, Jie Yan, Lina Luo, Shaowei Zhuang, Yihan Chen, Xiaodong Zhao, Sylvia M Evans, Cizhong Jiang, Xingqun Liang, Yunfu Sun
Malformations of the sympathetic nervous system have been associated with cardiovascular instability, gastrointestinal dysfunction, and neuroblastoma. A better understanding of the factors regulating sympathetic nervous system development is critical to the development of potential therapies. Here, we have uncovered a temporal requirement for the LIM homeodomain transcription factor ISL1 during sympathetic nervous system development by the analysis of two mutant mouse lines: an Isl1 hypomorphic line and mice with Isl1 ablated in neural crest lineages...
February 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29445122/deep-phenotyping-of-speech-and-language-skills-in-individuals-with-16p11-2-deletion
#14
Cristina Mei, Evelina Fedorenko, David J Amor, Amber Boys, Caitlyn Hoeflin, Peter Carew, Trent Burgess, Simon E Fisher, Angela T Morgan
Recurrent deletions of a ~600-kb region of 16p11.2 have been associated with a highly penetrant form of childhood apraxia of speech (CAS). Yet prior findings have been based on a small, potentially biased sample using retrospectively collected data. We examine the prevalence of CAS in a larger cohort of individuals with 16p11.2 deletion using a prospectively designed assessment battery. The broader speech and language phenotype associated with carrying this deletion was also examined. 55 participants with 16p11...
February 14, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29443448/an-intraneural-electrode-for-bioelectronic-medicines-for-treatment-of-hypertension
#15
Cristian Sevcencu, Thomas N Nielsen, Johannes J Struijk
OBJECTIVES: As the left vagus nerve (LVN) mediates a baroreflex blood pressure (BP) decrease, LVN stimulation (LVNS) could be a therapy for hypertension. Moreover, LVNS could elegantly be adjusted to the patient's actual BP and physical activity by using the neural information about BP and respiration extractable from LVN. However, unselective LVNS will trigger undesirable side-effects and therefore we here investigated the feasibility of using an intraneural electrode for extracting BP and respiration markers from the LVN and for selective LVNS...
February 14, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29442223/beneficial-role-of-low-intensity-laser-irradiation-on-neural-%C3%AE-tubulin-iii-protein-expression-in-human-bone-marrow-multipotent-mesenchymal-stromal-cells
#16
Valéria Ferreira-Silva, Fernando L Primo, Munira M A Baqui, Danielle A R Magalhães, Maristela D Orellana, Andrielle Castilho-Fernandes, Mario C Cruz, Niehls O S Câmara, Dimas T Covas, Antonio C Tedesco
The purpose of the present study was to evaluate the neural protein expression pattern of human multipotent mesenchymal stromal cells (hMSCs) treated with forskolin (free-form/FF). The study investigated forskolin's capacity to enhance intracellular levels of cyclic adenosine monophosphate (cAMP) by activating adenylate cyclase and probably by inducing neuron-like cells in vitro. In addition, because nanotechnology is a growing field of tissue engineering, we also assessed the action of a new system called the nanostructured-forskolin (NF) to examine the improvement of drug delivery...
February 13, 2018: Stem Cell Reviews
https://www.readbyqxmd.com/read/29442069/human-rett-derived-neuronal-progenitor-cells-in-3d-graphene-scaffold-as-an-in-vitro-platform-to-study-the-effect-of-electrical-stimulation-on-neuronal-differentiation
#17
Anh Tuan Nguyen, Sabrina Mattiassi, Manuela Loeblein, Eunice Chin, DongLiang Ma, Philippe Coquet, Virgile Viasnoff, E H T Teo, Eyleen L Goh, Evelyn Yim
Studies of electrical stimulation therapies for the treatment of neurological disorders, such as deep brain stimulation, have almost exclusively been performed using animal-models. However, because animal-models can only approximate human brain disorders, these studies should be supplemented with an in vitro human cell-culture based model to substantiate the results of animal-based studies and further investigate therapeutic benefit in humans. This study presents a novel approach to analyse the effect of electrical stimulation on the neurogenesis of patient-induced pluripotent stem cell (iPSC) derived neural progenitor cell (NPC) lines, in vitro using a 3D graphene scaffold system...
February 14, 2018: Biomedical Materials
https://www.readbyqxmd.com/read/29439744/an-investigation-into-closed-loop-treatment-of-neurological-disorders-based-on-sensing-mitochondrial-dysfunction
#18
REVIEW
Scott D Adams, Abbas Z Kouzani, Susannah J Tye, Kevin E Bennet, Michael Berk
Dynamic feedback based closed-loop medical devices offer a number of advantages for treatment of heterogeneous neurological conditions. Closed-loop devices integrate a level of neurobiological feedback, which allows for real-time adjustments to be made with the overarching aim of improving treatment efficacy and minimizing risks for adverse events. One target which has not been extensively explored as a potential feedback component in closed-loop therapies is mitochondrial function. Several neurodegenerative and psychiatric disorders including Parkinson's disease, Major Depressive disorder and Bipolar disorder have been linked to perturbations in the mitochondrial respiratory chain...
February 13, 2018: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/29439241/near-infrared-deep-brain-stimulation-via-upconversion-nanoparticle-mediated-optogenetics
#19
Shuo Chen, Adam Z Weitemier, Xiao Zeng, Linmeng He, Xiyu Wang, Yanqiu Tao, Arthur J Y Huang, Yuki Hashimotodani, Masanobu Kano, Hirohide Iwasaki, Laxmi Kumar Parajuli, Shigeo Okabe, Daniel B Loong Teh, Angelo H All, Iku Tsutsui-Kimura, Kenji F Tanaka, Xiaogang Liu, Thomas J McHugh
Optogenetics has revolutionized the experimental interrogation of neural circuits and holds promise for the treatment of neurological disorders. It is limited, however, because visible light cannot penetrate deep inside brain tissue. Upconversion nanoparticles (UCNPs) absorb tissue-penetrating near-infrared (NIR) light and emit wavelength-specific visible light. Here, we demonstrate that molecularly tailored UCNPs can serve as optogenetic actuators of transcranial NIR light to stimulate deep brain neurons. Transcranial NIR UCNP-mediated optogenetics evoked dopamine release from genetically tagged neurons in the ventral tegmental area, induced brain oscillations through activation of inhibitory neurons in the medial septum, silenced seizure by inhibition of hippocampal excitatory cells, and triggered memory recall...
February 9, 2018: Science
https://www.readbyqxmd.com/read/29435804/human-neural-stem-cells-with-gdnf-site-specific-integration-at-aavs1-by-using-aav-vectors-retained-their-stemness
#20
Jinju Zhang, Xiaomei Liu, Yun Zhang, Zuo Luan, Yinxiang Yang, Zhaoyan Wang, Chun Zhang
The neural stem cells (NSCs) have the ability to self-renew, and to migrate to pathologically altered regions of the central nervous system. Glial cell derived neurotrophic factor (GDNF) could protect dopamine neurons and rescue motor neurons in vivo, which has been proposed as a promising candidate for the treatments of degenerative neurological diseases. In order to combine the advantages of neurotrophic factors and stem cells in clinical therapy, we established the modified hNSCs that has site-specific integration of GDNF gene by using recombinant adeno-associated virus (rAAV) vectors...
February 12, 2018: Neurochemical Research
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