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https://www.readbyqxmd.com/read/29143276/long-term-impact-of-temozolomide-on-1p-19q-codeleted-low-grade-glioma-growth-kinetics
#1
C Izquierdo, A Alentorn, A Idbaih, M Simó, G Kaloshi, D Ricard, M Barritault, D Meyronet, J Bruna, J Honnorat, J Y Delattre, F Ducray
Although upfront temozolomide (TMZ) has been widely-used to treat 1p/19q-codeleted diffuse low-grade gliomas (LGG), its long-term impact on the growth kinetics of these tumors has not been determined. Based on serial magnetic resonance images we retrospectively evaluated the evolution of the mean tumor diameter (MTD) in 36 progressive 1p/19q-codeleted LGG treated with upfront TMZ. After TMZ onset, all but two patients (94.4%) presented a progressive MTD decrease that lasted for a median duration of 23 months (range 3-114)...
November 15, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29138651/melanotic-neuroectodermal-tumor-of-infancy-a-rare-presentation-of-an-extremely-rare-neoplasm-and-diagnostic-implications-in-gombe-nigeria
#2
Babatunde Oludare Fakuade, Joshua Biodun Adeoye
Melanotic neuro-ectodermal tumor of infancy is very rare. A unique neoplasm of the formative years, it typically involves the face or cranium; possesses rapid, expansile growth; presents as a firm swelling and displays a high rate of recurrence. Its rarity and unique features make diagnosis and management quite challenging. This challenge is increased in resource-limited settings like ours and with atypical presentation, such as was seen at our center, where patient presented with a bony hard swelling.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29138647/nodding-syndrome-ns-and-onchocerca-volvulus-ov-in-northern-uganda
#3
David Kitara Lagoro, Denis Anywar Arony
Nodding Syndrome (NS) is a childhood neurological disorder characterized by atonic seizures, cognitive decline, school dropout, muscle weakness, thermal dysfunction, wasting and stunted growth. There are recent published information suggesting associations between Nodding Syndrome (NS) with cerebrospinal fluid (CSF) VGKC antibodies and serum leiomidin-1 antibody cross reacting with Onchocerca Volvulus (OV). These findings suggest a neuro-inflammatory cause of NS and they are important findings in the search for the cause of Nodding Syndrome...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29138344/targeting-the-mycn-parp-dna-damage-response-pathway-inneuroendocrine-prostate-cancer
#4
Wei Zhang, Bo Liu, Wenhui Wu, Likun Li, Bradley M Broom, Spyridon M Basourakos, Dimitrios Korentzelos, Yang Luan, Jianxiang Wang, Guang Yang, Sanghee Park, Abul K Azad, Xuhong Cao, Jeri Kim, Paul Corn, Christopher Logothetis, Ana M Aparicio, Arul M Chinnayan, Nora M Navone, Patricia Troncoso, Timothy C Thompson
PURPOSE: We investigated MYCN-regulated molecular pathways in castration-resistant prostate cancer (CRPC) classified by morphological criteria as adenocarcinoma or neuroendocrine to extend the molecular phenotype, establish driver pathways, and identify novel approaches to combination therapy for NEPC. RESULTS: Using comparative bioinformatics analyses of CRPC-Adeno and CRPC-Neuro RNA sequence data from public datasets and a panel of 28 PDX models we identified a MYCN-PARP-DNA damage response (DDR) pathway that is enriched in CRPC with neuroendocrine differentiation (NED) and CRPC-Neuro...
November 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29125563/effects-of-resveratrol-against-lung-cancer-in-vitro-and-in-vivo-studies
#5
REVIEW
Michael Yousef, Ioannis A Vlachogiannis, Evangelia Tsiani
Uncontrolled cell growth and resistance to apoptosis characterize cancer cells. These two main features are initiated in cancer cells through mutations in key signaling molecules, which regulate pathways that are directly involved in controlling cell proliferation and apoptosis. Resveratrol (RSV), a naturally occurring plant polyphenol, has been shown to have biological effects counteracting different diseases. It has been found to provide cardio-protective, neuro-protective, immuno-modulatory, and anti-cancer health benefits...
November 10, 2017: Nutrients
https://www.readbyqxmd.com/read/29119332/therapeutic-effect-of-vinorine-on-sciatic-nerve-injured-rat
#6
Dongdong Guo, Xingang Lu, Xiaoli Xu, Haixin Gou, Zhiqian Wang, Yi Cao, Xingjing Luo
Vinorine is a monoterpenoid indole alkaloid, a type of natural alkaloids. Growing reports exhibited the numerous pharmacology activities of vinorine such as anti-inflammation, anti-bacterial and anti-tumor. In this study, the effect of vinorine injection (7.5, 15 and 30 mg/kg) on motor function, sensation and nerve regeneration in sciatic nerve crush injury rat was investigated. The results of behavioral analysis, electrophysiological analysis and muscle histological analysis suggested that vinorine promoted the motor function recovery after sciatic nerve injury...
November 8, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29113931/neurobiological-mechanisms-of-chemotherapy-induced-cognitive-impairment-in-a-transgenic-model-of-breast-cancer
#7
Gordon Winocur, Hal Berman, Mary Nguyen, Malcolm A Binns, Mark Henkelman, Matthijs van Eede, Micheline Piquette-Miller, Melanie J Sekeres, J Martin Wojtowicz, Johnson Yu, Haibo Zhang, Ian F Tannock
Animal studies have reinforced clinical reports of cognitive impairment in cancer survivors following chemotherapy but, until now, all pre-clinical research in this area has been conducted on normal rodents. The present study investigated the effects of chemotherapy on cognition and underlying biological mechanisms in the FVB/N-Tg (MMTV-neu) 202 Mul/J mouse, a well-characterized transgenic model of breast cancer that has similarities to the tumorigenesis which occurs in humans. Tumor-bearing and control mice received three weekly injections of a combination of methotrexate + 5-fluorouracil, or an equal volume of saline...
November 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/29111302/-cryopyrin-associated-periodic-syndromes
#8
P Quartier, F Rodrigues, S Georgin-Lavialle
Cryopyrin-associated periodic syndromes (CAPS) are linked to one single gene mutations, however they are associated with 3 syndromes, which are, from the mildest to the most severe phenotype familial cold urticaria, Muckle-Wells syndrome and chronic, infantile, neurologic, cutaneous, articular (CINCA) syndrome also called neonatal-onset multisystem inflammatory disease (NOMID). Autosomic dominant inheritance is present in most cases but in CINCA/NOMID syndrome where neomutations are more common. Mutations in the gene encoding cryopyrin, NLRP3, are associated with deregulation of caspase-1 activity, excessive interleukin-1 production and an autoinflammatory syndrome, which in familial cold urticaria and Muckle-Wells syndrome may be triggered or worsened by exposure to coldness...
October 27, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29108879/remyelination-modulators-in-multiple-sclerosis-patients
#9
Rabeah Al-Temaimi, Jehad AbuBaker, Irina Al-Khairi, Raed Alroughani
Multiple Sclerosis (MS) is a complex autoimmune neuro-inflammatory disorder characterized by persistent MS plaques in the central nervous system. Resolution of MS plaques is dependent on the remyelination competence of surviving oligodendrocytes and surrounding environment. Here, we assessed myelination modulators in a 100 MS patients against 77 healthy controls. Plasma fractions were used for the assessment of insulin growth factor binding protein1 (IGFBP1), brain-derived neurotrophic factor (BDNF), and lipocalin2 (LCN2) using a Luminex multiplex assay, whereas neurofilament light chain (NF-L) was assessed with an enzyme-linked immunosorbent assay...
November 8, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29076856/organization-and-scope-of-the-neuro-psychiatric-unit
#10
(no author information available yet)
Editor's note: From its first issue in 1900 through to the present day, AJN has unparalleled archives detailing nurses' work and lives over more than a century. These articles not only chronicle nursing's growth as a profession within the context of the events of the day, but they also reveal prevailing societal attitudes about women, health care, and human rights. Today's nursing school curricula rarely include nursing's history, but it's a history worth knowing. To this end, From the AJN Archives highlights articles selected to fit today's topics and times...
November 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/29046256/capping-effects-on-polymorphic-a%C3%AE-16-21-amyloids-depend-on-their-size-a-molecular-dynamics-simulation-study
#11
Myeongsang Lee, Hyun Joon Chang, Hyunsung Choi, Sungsoo Na
Understanding Aβ amyloid oligomers associated with neuro-degenerative diseases is needed due to their toxic characteristics and mediation of amyloid fibril growth. Depending on various physiological circumstances such as ionic strength, metal ion, and point-residue mutation, oligomeric amyloids exhibit polymorphic behavior and structural stabilities, i.e. showing different conformation and stabilities. Specifically, experimental and computational researchers have found that the capping modulates the physical and chemical properties of amyloids by preserving electrostatic energy interactions, which is one of the dominant factors for amyloid stability...
October 10, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/29045489/ciguatoxicity-of-gambierdiscus-and-fukuyoa-species-from-the-caribbean-and-gulf-of-mexico
#12
R Wayne Litaker, William C Holland, D Ransom Hardison, Francesco Pisapia, Philipp Hess, Steven R Kibler, Patricia A Tester
Dinoflagellate species belonging to the genera Gambierdiscus and Fukuyoa produce ciguatoxins (CTXs), potent neurotoxins that concentrate in fish causing ciguatera fish poisoning (CFP) in humans. While the structures and toxicities of ciguatoxins isolated from fish in the Pacific and Caribbean are known, there are few data on the variation in toxicity between and among species of Gambierdiscus and Fukuyoa. Quantifying the differences in species-specific toxicity is especially important to developing an effective cell-based risk assessment strategy for CFP...
2017: PloS One
https://www.readbyqxmd.com/read/29036345/phase-ii-study-of-cabozantinib-in-patients-with-progressive-glioblastoma-subset-analysis-of-patients-with-prior-antiangiogenic-therapy
#13
Timothy F Cloughesy, Jan Drappatz, John de Groot, Michael D Prados, David A Reardon, David Schiff, Marc Chamberlain, Tom Mikkelsen, Annick Desjardins, Jerry Ping, Jaymes Holland, Ron Weitzman, Patrick Y Wen
Background: Cabozantinib is a potent, multi-target inhibitor of hepatocyte growth factor receptor (MET) and vascular endothelial growth factor receptor-2 (VEGFR2). This open-label, phase II trial evaluated cabozantinib in patients with recurrent or progressive glioblastoma (GBM; NCT00704288). Methods: Patients were initially enrolled to a starting cabozantinib dose of 140 mg/day, but the starting dose was amended to 100 mg/day because of safety concerns. Treatment continued until disease progression or unacceptable toxicity...
October 3, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28983589/honokiol-triggers-receptor%C3%A2-interacting-protein-kinase-3%C3%A2-mediated-cell-death-of-neuroblastoma-cells-by-upregulating-reactive-oxygen-species
#14
Jiao Zhang, Qiuliang Liu, Longyan Shi, Pan Qin, Qi Wang
Neuroblastoma is the most common form of childhood extracranial tumor and almost half of neuroblastoma cases occur in infants under two years old. Neuroblastoma accounts for ~6‑10% of childhood cancers and 15% of cancer‑associated childhood mortality. However, an effective treatment remains to be developed. Honokiol exhibits long‑lasting central muscle relaxation, anti‑inflammatory, antibacterial, antimicrobial, antiulcer, antioxidation, antiaging and antitumor effects. Honokiol has been previously demonstrated to kill neuroblastoma cells, however, the underlying mechanism of action remains unclear...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28982701/light-regimes-differentially-affect-baseline-transcript-abundance-of-stress-axis-and-neuro-development-related-genes-in-zebrafish-danio-rerio-hamilton-1822-ab-and-tl-larvae
#15
Ruud van den Bos, Jan Zethof, Gert Flik, Marnix Gorissen
Many strains of zebrafish (Danio rerio) are readily available. Earlier we observed differences between AB and Tupfel long-fin (TL) larvae regarding baseline hypothalamus-pituitary-interrenal (HPI) axis activity and (neuro)development. Light regimes, i.e. 14 h light:10 h dark and 24 h continuous dark or light, affect hatching rate and larval growth. Here, we assessed baseline transcript abundance of HPI-axis-related genes and (neuro)development-related genes of AB and TL larvae (5 days post fertilisation) using these light regimes...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28980233/molecular-and-neuroendocrine-mechanisms-of-avian-seasonal-reproduction
#16
T Katherine Tamai, Takashi Yoshimura
Animals living outside tropical zones experience seasonal changes in the environment and accordingly, adapt their physiology and behavior in reproduction, molting, and migration. Subtropical birds are excellent models for the study of seasonal reproduction because of their rapid and dramatic response to changes in photoperiod. For example, testicular weight typically changes by more than a 100-fold. In birds, the eyes are not necessary for seasonal reproduction, and light is instead perceived by deep brain photoreceptors...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28966630/neurotrophic-factors-and-corneal-nerve-regeneration
#17
REVIEW
Marta Sacchetti, Alessandro Lambiase
The cornea has unique features that make it a useful model for regenerative medicine studies. It is an avascular, transparent, densely innervated tissue and any pathological changes can be easily detected by slit lamp examination. Corneal sensitivity is provided by the ophthalmic branch of the trigeminal nerve that elicits protective reflexes such as blinking and tearing and exerts trophic support by releasing neuromediators and growth factors. Corneal nerves are easily evaluated for both function and morphology using standard instruments such as corneal esthesiometer and in vivo confocal microscope...
August 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28953873/inflammasome-driven-catecholamine-catabolism-in-macrophages-blunts-lipolysis-during-ageing
#18
Christina D Camell, Jil Sander, Olga Spadaro, Aileen Lee, Kim Y Nguyen, Allison Wing, Emily L Goldberg, Yun-Hee Youm, Chester W Brown, John Elsworth, Matthew S Rodeheffer, Joachim L Schultze, Vishwa Deep Dixit
Catecholamine-induced lipolysis, the first step in the generation of energy substrates by the hydrolysis of triglycerides, declines with age. The defect in the mobilization of free fatty acids in the elderly is accompanied by increased visceral adiposity, lower exercise capacity, failure to maintain core body temperature during cold stress, and reduced ability to survive starvation. Although catecholamine signalling in adipocytes is normal in the elderly, how lipolysis is impaired in ageing remains unknown...
October 5, 2017: Nature
https://www.readbyqxmd.com/read/28931666/trpa1-activation-in-a-human-sensory-neuronal-model-relevance-to-cough-hypersensitivity
#19
Rebecca Clarke, Kevin Monaghan, Imad About, Caoimhin S Griffin, Gerard P Sergeant, Ikhlas El Karim, J Graham McGeown, S Louise Cosby, Timothy M Curtis, Lorcan P McGarvey, Fionnuala T Lundy
The cough reflex becomes hyperresponsive in acute and chronic respiratory diseases, but understanding the underlying mechanism is hampered by difficulty accessing human tissue containing both nerve endings and neuronal cell bodies. We refined an adult stem cell sensory neuronal model to overcome the limited availability of human neurones and applied the model to study transient receptor potential ankyrin 1 (TRPA1) channel expression and activation.Human dental pulp stem cells (hDPSCs) were differentiated towards a neuronal phenotype, termed peripheral neuronal equivalents (PNEs)...
September 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28927746/-proposal-of-screening-for-diffuse-low-grade-gliomas-in-the-population-from-20-to-40years
#20
Emmanuel Mandonnet, Luc Taillandier, Hugues Duffau
Diffuse low-grade gliomas (DLGG) are cerebral tumors occurring in young adults, with an inescapable progression to higher grade of malignancy, resulting in functional impairment and death. DLGG evolve in several phases: an asymptomatic period despite a slow radiological growth; a period in which inaugural symptoms occur, usually epilepsy with possible mild cognitive disorders; then a phase with malignant transformation generating disabling neurological deficits; and ultimately the terminal stage. Early maximal surgical resection significantly increases overall survival while preserving quality of life...
October 2017: La Presse Médicale
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