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https://www.readbyqxmd.com/read/29239730/directed-differentiation-of-periocular-mesenchyme-from-human-embryonic-stem-cells
#1
Matthew Lovatt, Gary Hin-Fai Yam, Gary S Peh, Alan Colman, N Ray Dunn, Jodhbir S Mehta
Corneal tissue is the most transplanted of all body tissues. Currently, cadaveric donor tissues are used for transplantation. However, a global shortage of transplant grade material has prompted development of alternative, cell-based therapies for corneal diseases. Pluripotent stem cells are attractive sources of cells for regenerative medicine, because large numbers of therapeutically useful cells can be generated. However, a detailed understanding of how to differentiate clinically relevant cell types from stem cells is fundamentally required...
November 16, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29239337/globose-basal-cells-for-spinal-cord-regeneration
#2
Durai Murugan Muniswami, Indirani Kanakasabapathy, George Tharion
Spinal cord injury (SCI) is a devastating condition with loss of motor and sensory functions below the injury level. Cell based therapies are experimented in pre-clinical studies around the world. Neural stem cells are located intra-cranially in subventricular zone and hippocampus which are highly invasive sources. The olfactory epithelium is a neurogenic tissue where neurogenesis takes place throughout the adult life by a population of stem/progenitor cells. Easily accessible olfactory neuroepithelial stem/progenitor cells are an attractive cell source for transplantation in SCI...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29239333/nigral-dopaminergic-neuron-replenishment-in-adult-mice-through-ve-cadherin-expressing-neural-progenitor-cells
#3
Abir A Rahman, Nathan K Lai, Joshua E Albright, Paige E Urquhart, Abby R Webb, Brad E Morrison
The function of dopaminergic neurons in the substantia nigra is of central importance to the coordination of movement by the brain's basal ganglia circuitry. This is evidenced by the loss of these neurons, resulting in the cardinal motor deficits associated with Parkinson's disease. In order to fully understand the physiology of these key neurons and develop potential therapies for their loss, it is essential to determine if and how dopaminergic neurons are replenished in the adult brain. Recent work has presented evidence for adult neurogenesis of these neurons by Nestin+/Sox2- neural progenitor cells...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29239055/brain-structural-alterations-associated-with-dysfunctional-cognitive-control-of-pain-in-patients-with-low-back-pain
#4
O Chehadi, A C Rusu, K Konietzny, E Schulz, O Köster, T Schmidt-Wilcke, M I Hasenbring
BACKGROUND: Recent evidence has shown that chronic back pain (CBP) can lead to functional alterations in the circuitry underlying the cognitive control of pain. Thought suppression (TS) is a common type of cognitive control of pain. Previous research has shown that TS has paradoxical effects that may increase the awareness of pain. Pain-related TS may also increase individuals' attention to pain, which may also increase pain sensation, but thus far, the relationship between pain-related TS and structural brain alterations is unknown...
December 14, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29238292/effect-of-vegf-on-inflammatory-regulation-neural-survival-and-functional-improvement-in-rats-following-a-complete-spinal-cord-transection
#5
Jing Li, Shuangxi Chen, Zhikai Zhao, Yunhao Luo, Yuhui Hou, Heng Li, Liumin He, Libing Zhou, Wutian Wu
After complete transection of the thoracic spinal segment, neonatal rats exhibit spontaneous locomotor recovery of hindlimbs, but this recovery is not found in adult rats after similar injury. The potential mechanism related to the difference in recovery of neonatal and adult rats remains unknown. In this study, 342 animals were analyzed. The vascular endothelial growth factor (VEGF) level in spinal segments below injury sites was significantly higher in postnatal day 1 rats (P1) compared with 28-day-old adult rats (P28) following a complete T9 transection...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29236214/neural-network-modeling-of-ache-inhibition-by-new-carbazole-bearing-oxazolones
#6
Levent Cavas, Gamze Topcam, Cevher Gundogdu-Hizliates, Yavuz Ergun
Acetylcholine esterase (AChE) is one of the targeted enzymes in the therapy of important neurodegenerative diseases such as Alzheimer's disease. Many studies on carbazole- and oxazolone-based compounds have been conducted in the last decade due to the importance of these compounds. New carbazole-bearing oxazolones were synthesized from several carbazole aldehydes and p-nitrobenzoyl glycine as AChE inhibitors by the Erlenmeyer reaction in the present study. The inhibitory effects of three carbazole-bearing oxazolone derivatives on AChE were studied in vitro and the experimental results were modeled using artificial neural network (ANN)...
December 13, 2017: Interdisciplinary Sciences, Computational Life Sciences
https://www.readbyqxmd.com/read/29234817/neural-plasticity-and-its-initiating-conditions-in-tinnitus
#7
REVIEW
L E Roberts
BACKGROUND AND OBJECTIVE: Deafferentation caused by cochlear pathology (which can be hidden from the audiogram) activates forms of neural plasticity in auditory pathways, generating tinnitus and its associated conditions including hyperacusis. This article discusses tinnitus mechanisms and suggests how these mechanisms may relate to those involved in normal auditory information processing. MATERIALS AND METHODS: Research findings from animal models of tinnitus and from electromagnetic imaging of tinnitus patients are reviewed which pertain to the role of deafferentation and neural plasticity in tinnitus and hyperacusis...
December 12, 2017: HNO
https://www.readbyqxmd.com/read/29233625/the-clinical-use-of-neuromuscular-electrical-stimulation-for-neuromuscular-rehabilitation-what-are-we-overlooking
#8
Nicola A Maffiuletti, Julien Gondin, Nicolas Place, Jennifer Stevens-Lapsley, Isabelle Vivodtzev, Marco A Minetto
The clinical success of neuromuscular electrical stimulation (NMES) for neuromuscular rehabilitation is greatly compromised by the poor consideration of different physiological and methodological issues that are not always obvious for the clinicians. Therefore, the aim of this narrative review is to re-examine some of these fundamental aspects of NMES using a tripartite model perspective. First, we contend that NMES does not actually bypass the central nervous system but results in a multitude of neurally-mediated responses that contribute substantially to force generation and may engender neural adaptations...
December 9, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29233555/human-neural-stem-cell-transplantation-rescues-functional-deficits-in-r6-2-and-q140-huntington-s-disease-mice
#9
Jack C Reidling, Aroa Relaño-Ginés, Sandra M Holley, Joseph Ochaba, Cindy Moore, Brian Fury, Alice Lau, Andrew H Tran, Sylvia Yeung, Delaram Salamati, Chunni Zhu, Asa Hatami, Carlos Cepeda, Joshua A Barry, Talia Kamdjou, Alvin King, Dane Coleal-Bergum, Nicholas R Franich, Frank M LaFerla, Joan S Steffan, Mathew Blurton-Jones, Charles K Meshul, Gerhard Bauer, Michael S Levine, Marie-Francoise Chesselet, Leslie M Thompson
Huntington's disease (HD) is an inherited neurodegenerative disorder with no disease-modifying treatment. Expansion of the glutamine-encoding repeat in the Huntingtin (HTT) gene causes broad effects that are a challenge for single treatment strategies. Strategies based on human stem cells offer a promising option. We evaluated efficacy of transplanting a good manufacturing practice (GMP)-grade human embryonic stem cell-derived neural stem cell (hNSC) line into striatum of HD modeled mice. In HD fragment model R6/2 mice, transplants improve motor deficits, rescue synaptic alterations, and are contacted by nerve terminals from mouse cells...
December 6, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29232823/improving-cerebral-blood-flow-after-arterial-recanalization-a-novel-therapeutic-strategy-in-stroke
#10
REVIEW
Mohamad El Amki, Susanne Wegener
Ischemic stroke is caused by a disruption in blood supply to a region of the brain. It induces dysfunction of brain cells and networks, resulting in sudden neurological deficits. The cause of stroke is vascular, but the consequences are neurological. Decades of research have focused on finding new strategies to reduce the neural damage after cerebral ischemia. However, despite the incredibly huge investment, all strategies targeting neuroprotection have failed to demonstrate clinical efficacy. Today, treatment for stroke consists of dealing with the cause, attempting to remove the occluding blood clot and recanalize the vessel...
December 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29231495/-relapsing-remitting-multiple-sclerosis-at-remission-stage-treated-with-acupuncture-a-randomized-controlled-trial
#11
Chunchen Wang, Zhigang Chen, Linpeng Wang, Xinyu Ma, Yi Xing, Aitong Li, Fan Zhang, Tao Zhang
OBJECTIVE: To evaluate the differences in the therapeutic effects on relapsing-remitting multiple sclerosis (RRMS) at remission stage between acupuncture at acupoints and shallow needling therapy at the nearby points. METHODS: Forty-two patients of RRMS were randomized into an observation group and a control group, 21 cases in each one. In the observation group, besides the basic treatment, acupuncture was applied according to WANG Leting's empirical prescriptions as "the empirical ten needles" "thirteen needles of the governor vessel" "twelve needles of hand and foot" as well as the symptomatic points...
June 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29230608/combinatorial-therapy-with-two-pro-coagulants-and-one-osmotic-agent-reduces-the-extent-of-the-lesion-in-the-acute-phase-of-spinal-cord-injury-in-the-rat
#12
Mathieu Boutonnet, Elisabeth Laemmel, Eric Vicaut, Jacques Duranteau, Marc Soubeyrand
BACKGROUND: Spinal cord injury (SCI) is a complex disease that leads to a motor, sensitive, and vegetative impairment. So far, single therapies are ineffective for treating SCI in humans and a multifactorial therapeutic approach may be required. The aim of this work was to assess the effect of a triple therapy (TT) associating two pro-coagulant therapies (tranexamic acid and fibrinogen) with an anti-edema therapy (hypertonic saline solution), on the extent of the lesion 24 h post-injury...
December 11, 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/29230011/pairing-sound-with-vagus-nerve-stimulation-modulates-cortical-synchrony-and-phase-coherence-in-tinnitus-an-exploratory-retrospective-study
#13
Sven Vanneste, Jeffrey Martin, Robert L Rennaker, Michael P Kilgard
Recent research has shown that vagus nerve stimulation (VNS) paired with tones or with rehabilitative training can help patients to achieve reductions in tinnitus perception or to expedite motor rehabilitation after suffering an ischemic stroke. The rationale behind this treatment is that VNS paired with experience can drive neural plasticity in a controlled and therapeutic direction. Since previous studies observed that gamma activity in the auditory cortex is correlated with tinnitus loudness, we assessed resting-state source-localized EEG before and after one to three months of VNS-tone pairing in chronic tinnitus patients...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29228630/transplantation-of-ips-cell-derived-neural-progenitors-overexpressing-sdf-1%C3%AE-increases-regeneration-and-functional-recovery-after-ischemic-stroke
#14
Monica Chau, Todd C Deveau, Mingke Song, Zheng Z Wei, Xiaohuan Gu, Shan Ping Yu, Ling Wei
Ischemic stroke is a leading cause of human death and disability while clinical treatments are limited. The adult brain possesses endogenous regenerative activities that may benefit tissue repair after stroke. Trophic factors such as stromal cell-derived factor 1 alpha (SDF-1α) are upregulated in the ischemic brain, which promote endogenous regeneration. The regenerative response, however, is normally insufficient. Transplantation of exogenous cells has been explored as regenerative therapies. One promising cell type for transplantation is induced pluripotent stem (iPS) cells which are cells genetically reprogrammed from adult somatic cells...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227284/cografting-astrocytes-improves-cell-therapeutic-outcomes-in-a-parkinson-s-disease-model
#15
Jae-Jin Song, Sang-Min Oh, Oh-Chan Kwon, Noviana Wulnansari, Hyun-Seob Lee, Mi-Yoon Chang, Eunsoo Lee, Woong Sun, Sang-Eun Lee, Sunghoe Chang, Heeyoung An, C Justin Lee, Sang-Hun Lee
Transplantation of neural progenitor cells (NPCs) is a potential therapy for treating neurodegenerative disorders, but this approach has faced many challenges and limited success, primarily because of inhospitable host brain environments that interfere with enriched neuron engraftment and function. Astrocytes play neurotrophic roles in the developing and adult brain, making them potential candidates for helping with modification of hostile brain environments. In this study, we examined whether astrocytic function could be utilized to overcome the current limitations of cell-based therapies in a murine model of Parkinson's disease (PD) that is characterized by dopamine (DA) neuron degeneration in the midbrain...
December 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29223708/comparison-of-neuroplastic-responses-to-cathodal-transcranial-direct-current-stimulation-and-continuous-theta-burst-stimulation-in-subacute-stroke
#16
Pierre Nicolo, Cécile Magnin, Elena Pedrazzini, Gijs Plomp, Anaïs Mottaz, Armin Schnider, Adrian G Guggisberg
OBJECTIVE: To investigate the effects of cathodal transcranial direct current stimulation (tDCS) and continuous theta burst stimulation (cTBS) on neural network connectivity and motor recovery in individuals with subacute stroke. DESIGN: Double-blinded, randomized, placebo-controlled study. SETTING: Stroke subjects recruited through a university hospital rehabilitation program. PARTICIPANTS: Stroke inpatients (N=41; mean age 65y, range 28-85; mean weeks poststroke 5, range 2-10) with resultant paresis in the upper extremity (mean Fugl-Meyer score 14, range 3-48)...
December 6, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29223312/bioprinting-for-neural-tissue-engineering
#17
REVIEW
Stephanie Knowlton, Shivesh Anand, Twisha Shah, Savas Tasoglu
Bioprinting is a method by which a cell-encapsulating bioink is patterned to create complex tissue architectures. Given the potential impact of this technology on neural research, we review the current state-of-the-art approaches for bioprinting neural tissues. While 2D neural cultures are ubiquitous for studying neural cells, 3D cultures can more accurately replicate the microenvironment of neural tissues. By bioprinting neuronal constructs, one can precisely control the microenvironment by specifically formulating the bioink for neural tissues, and by spatially patterning cell types and scaffold properties in three dimensions...
December 6, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/29222849/bone-marrow-transplantation-improves-motor-activity-in-a-mouse-model-of-ataxia
#18
David Díaz, Marina Piquer-Gil, Javier Sánchez Recio, María Magdalena Martínez-Losa, José Ramón Alonso, Eduardo Weruaga, Manuel Álvarez-Dolado
Ataxias are locomotor disorders that can have an origin both neural and muscular, although both impairments are related. Unfortunately, ataxia has no cure and the current therapies are aimed at motor re-education or muscular reinforcement. Nevertheless, cell therapy is becoming a promising approach to deal with incurable neural diseases, including neuro-muscular ataxias. Here we have used a model of ataxia, the PCD mutant mouse, to study the effect of healthy (wild-type) bone marrow transplantation on the restoration of defective mobility...
December 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29218871/extracting-a-biologically-relevant-latent-space-from-cancer-transcriptomes-with-variational-autoencoders
#19
Gregory P Way, Casey S Greene
The Cancer Genome Atlas (TCGA) has profiled over 10,000 tumors across 33 different cancer-types for many genomic features, including gene expression levels. Gene expression measurements capture substantial information about the state of each tumor. Certain classes of deep neural network models are capable of learning a meaningful latent space. Such a latent space could be used to explore and generate hypothetical gene expression profiles under various types of molecular and genetic perturbation. For example, one might wish to use such a model to predict a tumor's response to specific therapies or to characterize complex gene expression activations existing in differential proportions in different tumors...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29214483/psychotherapyplus-augmentation-of-cognitive-behavioral-therapy-cbt-with-prefrontal-transcranial-direct-current-stimulation-tdcs-in-major-depressive-disorder-study-design-and-methodology-of-a-multicenter-double-blind-randomized-placebo-controlled-trial
#20
Malek Bajbouj, Sabine Aust, Jan Spies, Ana-Lucia Herrera-Melendez, Sarah V Mayer, Maike Peters, Christian Plewnia, Andreas J Fallgatter, Lukas Frase, Claus Normann, Nora Behler, Linda Wulf, Eva-Lotta Brakemeier, Frank Padberg
Major Depressive Disorder (MDD) is one of the most prevalent psychiatric disorders worldwide. About 20-30% of patients do not respond to the standard psychopharmacological and/or psychotherapeutic interventions. Mounting evidence from neuroimaging studies in MDD patients reveal altered activation patterns in lateral prefrontal brain areas. Successful cognitive behavioral therapy (CBT) is associated with a recovery of these neural alterations. Moreover, it has been demonstrated that transcranial direct current stimulation (tDCS) is capable of influencing prefrontal cortex activity and cognitive functions such as working memory and emotion regulation...
December 6, 2017: European Archives of Psychiatry and Clinical Neuroscience
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