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https://www.readbyqxmd.com/read/28534946/differentiation-of-nestin%C3%A2-negative-human-hair-follicle-outer-root-sheath-cells-into-neurons-in%C3%A2-vitro
#1
Wei Wu, Xiao-Li Wu, Yu-Qing Ji, Zhen Gao
A specialized quiescent population of hair follicle stem cells, residing in the hair follicle outer root sheath cells (ORSCs), has previously demonstrated pluripotency for differentiation into neural stem cells (NSCs). A previous study indicated that nestin‑positive hair follicle ORSCs are able to differentiate into neurons. However, little has been reported on the isolation of nestin‑negative human ORSCs and whether they can successfully differentiate into neurons in vitro. In the present study, nestin‑positive ORSCs were significantly reduced with a prolonged incubation time in vitro...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28531331/diagnostic-challenges-in-meningioma
#2
Martha Nowosielski, Nobert Galldiks, Sarah Iglseder, Philipp Kickingereder, Andreas von Deimling, Martin Bendszus, Wolfgang Wick, Felix Sahm
Advances in molecular profiling and the application of advanced imaging techniques are currently refreshing diagnostic considerations in meningioma patients. Not only technical refinements but also sophisticated histopathological and molecular studies have the potential to overcome some of the challenges during meningioma management. Exact tumor delineation, assessment of tumor growth and pathophysiological parameters were recently addressed by "advanced" magnetic resonance imaging and positron emission tomography...
May 20, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28522659/validation-of-an-mri-brain-injury-and-growth-scoring-system-in-very-preterm-infants-scanned-at-29-to-35-week-postmenstrual-age
#3
J M George, S Fiori, J Fripp, X K Pannek, X J Bursle, X R X Moldrich, X A Guzzetta, X A Coulthard, X R S Ware, X S E Rose, X P B Colditz, X R N Boyd
BACKGROUND AND PURPOSE: The diagnostic and prognostic potential of brain MR imaging before term-equivalent age is limited until valid MR imaging scoring systems are available. This study aimed to validate an MR imaging scoring system of brain injury and impaired growth for use at 29 to 35 weeks postmenstrual age in infants born at <31 weeks gestational age. MATERIALS AND METHODS: Eighty-three infants in a prospective cohort study underwent early 3T MR imaging between 29 and 35 weeks' postmenstrual age (mean, 32(+2) ± 1(+3) weeks; 49 males, born at median gestation of 28(+4) weeks; range, 23(+6)-30(+6) weeks; mean birthweight, 1068 ± 312 g)...
May 18, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28522182/hodotopy-neuroplasticity-and-diffuse-gliomas
#4
H Duffau
BACKGROUND AND PURPOSE: The historical approach in neurooncology is used to mainly investigate the tumor, with very few considerations regarding the brain itself. Nonetheless, to select the best personalized therapeutic management for each patient with a diffuse glioma, i.e. to optimize the "onco-functional balance", the brain reaction induced by glioma growth and migration should be studied. Indeed, due to strong interactions between the glioma and the brain, cerebral adaptive phenomena often occur in order to maintain neurological and cognitive functions, as well as to compensate glioma spreading...
May 15, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28501736/role-of-il-8-crp-and-epidermal-growth-factor-in-depression-and-anxiety-patients-treated-with-mindfulness-based-therapy-or-cognitive-behavioral-therapy-in-primary-health-care
#5
Ashfaque A Memon, Kristina Sundquist, Abrar Ahmad, Xiao Wang, Anna Hedelius, Jan Sundquist
Epidermal growth factor (EGF) and inflammatory markers have been associated with various neuro-psychiatric disorders. However, their role in mild to moderate depression and anxiety patients treated with mindfulness-based group therapy (mindfulness) or cognitive behavioral therapy (CBT) is not known. In this study we analyzed plasma levels of interleukin (IL)-6, IL-8, high sensitivity C-reactive protein (hsCRP) and EGF before (baseline) and after treatment (8 weeks) and investigated their role in response to both arms of the treatment...
May 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28474333/the-egf-epidermal-growth-factor-counteracts-tat-modulation-of-human-endogenous-retroviruses-of-the-w-family-in-astrocytes
#6
Elena Uleri, Claudia Piu, Maurizio Caocci, Gabriele Ibba, Caterina Serra, Antonina Dolei
Human astrocyte cells were exposed to HIV-Tat and/or epidermal growth factor (EGF), to monitor the expression of the neuropathogenic MSRV and Syncytin-1 elements of the HERV-W family of endogenous retroviruses and of TNFα. The results indicate that EGF counteracts Tat regulation of HERV-W/MSRVenv/Syncytin-1, throughout EGFR activation; this effect occurs by interfering with the induction of TNFα production by Tat. The novel effect of EGF counteraction of Tat-mediated regulation of the neuropathogenic HERV-Ws could be neuro-protective, but its actual role in the brain remains to be elucidated...
May 4, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28458385/recent-trends-in-neuro-endovascular-treatment-for-acute-ischemic-stroke-cerebral-aneurysms-carotid-stenosis-and-brain-arteriovenous-malformations
#7
Yuji Matsumaru, Eiichi Ishikawa, Tetsuya Yamamoto, Akira Matsumura
The efficacy of mechanical thrombectomy with stent retrievers for emergent large vessel occlusion has been proved by randomized trials. Mechanical thrombectomy is increasingly being adopted in Japan since stent retrievers were first approved in 2014. An urgent clinical task is to offer structured systems of care to provide this treatment in a timely fashion to all patients with emergent large vessel occlusion. Treatment with flow-diverting stents is currently a preferred treatment option worldwide for large and giant unruptured aneurysms...
May 1, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28455954/galectin-1-expression-imprints-a-neurovascular-phenotype-in-proliferative-retinopathies-and-delineates-responses-to-anti-vegf
#8
Magali E Ridano, Paula V Subirada, María C Paz, Valeria E Lorenc, Juan C Stupirski, Ana L Gramajo, José D Luna, Diego O Croci, Gabriel A Rabinovich, María C Sánchez
Neovascular retinopathies are leading causes of irreversible blindness. Although vascular endothelial growth factor (VEGF) inhibitors have been established as the mainstay of current treatment, clinical management of these diseases is still limited. As retinal impairment involves abnormal neovascularization and neuronal degeneration, we evaluated here the involvement of galectin-1 in vascular and non-vascular alterations associated with retinopathies, using the oxygen-induced retinopathy (OIR) model. Postnatal day 17 OIR mouse retinas showed the highest neovascular profile and exhibited neuro-glial injury as well as retinal functional loss, which persisted until P26 OIR...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28437179/mechanically-oriented-3d-collagen-hydrogel-for-directing-neurite-growth
#9
Merav Antman-Passig, Shahar Levy, Chaim Gartenberg, Hadas Schori, Orit Shefi
Recent studies in the field of neuro-tissue engineering have demonstrated the promising effects of aligned contact guidance cue to scaffolds of enhancement and direction of neuronal growth. In vivo, neurons grow and develop neurites in a complex three-dimensional (3D) extracellular matrix (ECM) surrounding. Studies have utilized hydrogel scaffolds derived from ECM molecules to better simulate natural growth. While many efforts have been made to control neuronal growth on 2D surfaces, the development of 3D scaffolds with an elaborate oriented topography to direct neuronal growth still remains a challenge...
May 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28418336/intracranial-lesions-in-children-and-adolescents-with-morbid-obesity
#10
Ayça Törel Ergür, Sevinç Odabaşı Güneş, Sinan Tan, Ü Ayşe Tandırcıoğlu
BACKGROUND: Intracranial lesions may affect the hypothalamo-hypophyseal axis and lead to some neuro-endocrinological dysfunctions (hyperphagia, sleep disorders and hormonal dysfunctions). There is a very limited number of studies about childhood obesity and intracranial lesions. AIMS: To evaluate the incidence of intracranial lesions and its role in clinical symptoms and aetiology in cases with morbid obesity who have been admitted to the paediatric endocrinology department with this complaint...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28409284/development-prevention-and-treatment-of-feeding-tube-dependency
#11
REVIEW
Hilde Krom, J Peter de Winter, Angelika Kindermann
Enteral nutrition is effective in ensuring nutritional requirements and growth. However, when tube feeding lasts for a longer period, it can lead to tube dependency in the absence of medical reasons for continuation of tube feeding. Tube-dependent children are unable or refuse to start oral activities and they lack oral skills. Tube dependency has health-, psychosocial-, and economy-related consequences. Therefore, the transition to oral feeding is of great importance. However, this transition can be very difficult and needs a multidisciplinary approach...
April 13, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28395863/a-full-life-cycle-bioassay-with-cantareus-aspersus-shows-reproductive-effects-of-a-glyphosate-based-herbicide-suggesting-potential-endocrine-disruption
#12
Coline Druart, Frédéric Gimbert, Renaud Scheifler, Annette de Vaufleury
A full life-cycle (240 days) bioassay using the terrestrial snail, Cantareus aspersus, allowing exposure during embryogenesis and/or the growth and reproduction phases, was used to assess the effects of Bypass(®), a glyphosate-based herbicide (GlyBH), on a range of endpoints, including parameters under endocrine control. As a positive control, a mixture (R-A) made of diquat (Reglone(®)) and nonylphenols (NP, Agral(®)), known for its endocrine disrupting effects in other organisms, was tested. At environmental concentrations, both pesticides (R-A mixture and GlyBH) enhanced growth but reduced reproduction...
April 7, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28391420/a-neuro-oncologist-s-perspective-on-management-of-brain-metastases-in-patients-with-egfr-mutant-non-small-cell-lung-cancer
#13
REVIEW
Tresa McGranahan, Seema Nagpal
Management of non-small cell lung cancer (NSCLC) with brain metastasis (BrM) has been revolutionized by identification of molecular subsets that have targetable oncogenes. Historically, survival for NSCLC with symptomatic BrM was weeks to months. Now, many patients are surviving years with limited data to guide treatment decisions. Tumors with activating mutations in epidermal growth factor receptor (EGFRact+) have a higher incidence of BrM, but a longer overall survival. The high response rate of both systemic and BrM EGFRact+ NSCLC to tyrosine kinase inhibitors (TKIs) has led to the rapid incorporation of new therapies but is outpacing evidence-based decisions for BrM in NSCLC...
April 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28386125/guangxi-cobra-venom-derived-ngf-promotes-the-osteogenic-and-therapeutic-effects-of-porous-bcp-ceramic
#14
Pan Jin, Fuqiang Yin, Li Huang, Li Zheng, Jinmin Zhao, Xingdong Zhang
Neuro-osteological interactions have an important role in the regulation of bone metabolism and regeneration. Neuropeptides combined with porous biphasic calcium phosphates (BCP) using protein adsorption may contribute to the acceleration of bone formation. In the present study, we investigated the effect of BCP combined with nerve growth factor (NGF) on the growth of osteoblasts in vitro and the combinational therapeutic effect on the repair of calvarial defects in vivo. NGF was separated and purified from Chinese cobra venom using a simplified three-step chromatography method...
April 7, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28359314/alpinia-oxyphylla-miq-fruit-extract-activates-igfr-pi3k-akt-signaling-to-induce-schwann-cell-proliferation-and-sciatic-nerve-regeneration
#15
Yung-Ming Chang, Hen-Hong Chang, Chin-Chuan Tsai, Hung-Jen Lin, Tsung-Jung Ho, Chi-Xin Ye, Ping-Ling Chiu, Yueh-Sheng Chen, Ray-Jade Chen, Chih-Yang Huang, Chien-Chung Lin
BACKGROUND: It is known that the medicinal herb Alpinia oxyphylla Miq. is widely used as a remedy for diarrhea as well as the symptoms accompanying hypertension and cerebrovascular disorders. Moreover, it has also been reported that Alpinia oxyphylla Miq. has beneficial effects on anti-senescence and neuro-protection. This study focuses on the molecular mechanisms by which the Alpinia oxyphylla Miq. fruits promote neuron regeneration. METHODS: A piece of silicone rubber was guided across a 15 mm gap in the sciatic nerve of a rat...
March 31, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28349952/nerve-regeneration-by-human-corneal-stromal-keratocytes-and-stromal-fibroblasts
#16
Gary Hin-Fai Yam, Geraint P Williams, Melina Setiawan, Nur Zahirah Binte M Yusoff, Xiao-Wen Lee, Hla Myint Htoon, Lei Zhou, Matthias Fuest, Jodhbir S Mehta
Laser refractive surgeries reshape corneal stroma to correct refractive errors, but unavoidably affect corneal nerves. Slow nerve regeneration and atypical neurite morphology cause desensitization and neuro-epitheliopathy. Following injury, surviving corneal stromal keratocytes (CSKs) are activated to stromal fibroblasts (SFs). How these two different cell types influence nerve regeneration is elusive. Our study evaluated the neuro-regulatory effects of human SFs versus CSKs derived from the same corneal stroma using an in vitro chick dorsal root ganglion model...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28348527/tuning-up-the-old-brain-with-new-tricks-attention-training-via-neurofeedback
#17
REVIEW
Yang Jiang, Reza Abiri, Xiaopeng Zhao
Neurofeedback (NF) is a form of biofeedback that uses real-time (RT) modulation of brain activity to enhance brain function and behavioral performance. Recent advances in Brain-Computer Interfaces (BCI) and cognitive training (CT) have provided new tools and evidence that NF improves cognitive functions, such as attention and working memory (WM), beyond what is provided by traditional CT. More published studies have demonstrated the efficacy of NF, particularly for treating attention deficit hyperactivity disorder (ADHD) in children...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28348075/computational-and-structural-evidence-for-neurotransmitter-mediated-modulation-of-the-oligomeric-states-of-human-insulin-in-storage-granules
#18
Vladimír Palivec, Cristina M Viola, Mateusz Kozak, Timothy R Ganderton, Květoslava Křížková, Johan P Turkenburg, Petra Halušková, Lenka Žáková, Jiří Jiráček, Pavel Jungwirth, Andrzej M Brzozowski
Human insulin is a pivotal protein hormone controlling metabolism, growth and ageing, and whose malfunctioning underlies diabetes, some cancers and neuro-degeneration. Despite its central position in human physiology, the in vivo oligomeric state and conformation of insulin in its storage granules in the pancreas are not known. In contrast, many in vitro structures of hexamers of this hormone are available, which fall into three conformational states: T6, T3Rf3 and R6. As there is strong evidence for accumulation of neurotransmitters, such as serotonin and dopamine, in insulin storage granules in pancreatic β-cells, we probed by molecular dynamics (MD) and protein crystallography (PC) if these endogenous ligands affect and stabilize insulin oligomers...
March 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28331560/introducing-crucial-protein-panel-of-gastric-adenocarcinoma-disease
#19
Mostafa Rezaei-Tavirani, Majid Rezaei-Tavirani, Vahid Mansouri, Seyed Mohammad Mahdavi, Reza Valizadeh, Mohammad Rostami-Nejad, Mohammad Reza Zali
AIM: Since interactome analysis of diseases can provide candidate biomarker panel related to the diseases, in this research, protein-protein interaction (PPI) network analysis is used to introduce the involved crucial proteins in Gastric adenocarcinoma (GA). BACKGROUND: Gastric adenocarcinoma (GA) is the most common type of stomach cancer. There is no efficient diagnostic molecular method for GA. METHOD: Applying Cytoscape software 3.4.0 and String Database, the PPI network was constructed for 200 genes...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28326012/androgen-receptor-regulates-the-growth-of-neuroblastoma-cells-in-vitro-and-in-vivo
#20
Junyan Sun, Dongmei Wang, Lianying Guo, Shengyun Fang, Yang Wang, Rong Xing
Background: Neuroblastoma is the most common extracranial tumors in children. At present about the true etiology of neuroblastoma is unclear and many studies have tried to find effective treatments for these primary malignant tumors. Although it has been illustrated that androgen receptor (AR) was expressed in neuroblastoma cells in some former reports, the biological role of androgen receptor in the development of neuroblastoma is not fully understood. Methods: Androgen (R1881) and the antagonists of androgen receptor (MDV3100 and ARN509) were used to study the role of the androgen receptor signaling pathway in vitro and in vivo on SH-SY5Y and Neuro-2a (N2a) cell lines...
2017: Frontiers in Neuroscience
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