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Neurotrophin 3

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https://www.readbyqxmd.com/read/30213948/metrnl-attenuates-lipid-induced-inflammation-and-insulin-resistance-via-ampk-or-ppar%C3%AE-dependent-pathways-in-skeletal-muscle-of-mice
#1
Tae Woo Jung, Sung Hoon Lee, Hyoung-Chun Kim, Joon Seok Bang, A M Abd El-Aty, Ahmet Hacımüftüoğlu, Yong Kyoo Shin, Ji Hoon Jeong
Physical activity has many beneficial effects on metabolic disorders, such as obesity, insulin resistance, and diabetes. Meteorin-like protein (METRNL), a novel secreted protein homologous to the neurotrophin Metrn, is induced after exercise in the skeletal muscle. Herein, we investigated the effects of METRNL on lipid-mediated inflammation and insulin resistance in skeletal muscle via AMP-activated protein kinase (AMPK) or peroxisome proliferator-activated receptor δ (PPARδ). Treatment with METRNL suppressed inflammatory markers, such as nuclear factor κB (NFκB) nuclear translocation, inhibitory κBα (IκBα) phosphorylation, interleukin-6 (IL-6) expression, and pro-inflammatory cytokines (such as TNFα and MCP-1)...
September 13, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/30207538/remodeling-of-lumbar-motor-circuitry-remote-to-a-thoracic-spinal-cord-injury-promotes-locomotor-recovery
#2
Ying Wang, Wei Wu, Xiangbing Wu, Yan Sun, Yi P Zhang, Ling-Xiao Deng, Melissa Jane Walker, Wenrui Qu, Chen Chen, Nai-Kui Liu, Qi Han, Heqiao Dai, Lisa Be Shields, Christopher B Shields, Dale R Sengelaub, Kathryn J Jones, George M Smith, Xiao-Ming Xu
Retrogradely-transported neurotrophin signaling plays an important role in regulating neural circuit specificity. Here we investigated whether targeted delivery of neurotrophin-3 (NT-3) to lumbar motoneurons (MNs) caudal to a thoracic (T10) contusive spinal cord injury (SCI) could modulate dendritic patterning and synapse formation of the lumbar MNs. In vitro , Adeno-associated virus serotype 2 overexpressing NT-3 (AAV-NT-3) induced NT-3 expression and neurite outgrowth in cultured spinal cord neurons. In vivo , targeted delivery of AAV-NT-3 into transiently demyelinated adult mouse sciatic nerves led to the retrograde transportation of NT-3 to the lumbar MNs, significantly attenuating SCI-induced lumbar MN dendritic atrophy...
September 12, 2018: ELife
https://www.readbyqxmd.com/read/30183384/virally-mediated-overexpression-of-glial-derived-neurotrophic-factor-elicits-age-and-dose-dependent-neuronal-toxicity-and-hearing-loss
#3
Omar Akil, Bas Blits, Lawrence R Lustig, Patricia A Leake
Contemporary cochlear implants (CI) are generally very effective for remediation of severe to profound sensorineural hearing loss, but outcomes are still highly variable. Auditory nerve survival is likely one of the major factors underlying this variability. Neurotrophin therapy therefore has been proposed for CI recipients, with the goal of improving outcomes by promoting improved survival of cochlear spiral ganglion neurons (SGN) and/or residual hair cells. Previous studies have shown that glial-derived neurotrophic factor (GDNF), brain-derived neurotrophic factor, and neurotrophin-3 can rescue SGNs following insult...
September 5, 2018: Human Gene Therapy
https://www.readbyqxmd.com/read/30136689/release-of-interleukin-10-and-neurotrophic-factors-in-the-choroid-plexus-possible-inductors-of-neurogenesis-following-copolymer-1-immunization-after-cerebral-ischemia
#4
Yolanda Cruz, Edna E García, Jessica V Gálvez, Stella V Arias-Santiago, Horacio G Carvajal, Raúl Silva-García, Herlinda Bonilla-Jaime, Julio Rojas-Castañeda, Antonio Ibarra
Copolymer-1 (Cop-1) is a peptide with immunomodulatory properties, approved by the Food and Drug Administration of United States in the treatment of multiple sclerosis. Cop-1 has been shown to exert neuroprotective effects and induce neurogenesis in cerebral ischemia models. Nevertheless, the mechanism involved in the neurogenic action of this compound remains unknown. The choroid plexus (CP) is a network of cells that constitute the interphase between the immune and central nervous systems, with the ability to mediate neurogenesis through the release of cytokines and growth factors...
October 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/30132039/effects-of-bioengineered-scaffold-loaded-with-neurotrophins-and-locomotor-training-in-restoring-h-reflex-responses-after-spinal-cord-injury
#5
Babitha Tom, Jaclyn Witko, Michel Lemay, Anita Singh
The combinational effects of a bioengineered scaffold loaded with neurotrophins and rehabilitation training on spasticity observed after spinal cord injury (SCI) has not been studied. We used an animal model of moderate contusion injury at T9/T10 that received bioengineered scaffold poly N-isopropylacrylamide-g-poly ethylene glycol (PNIPAAm-g-PEG) loaded with BDNF/NT3 followed by body weight supported treadmill training (BWSTT) and assessed the efficacy of the combinational bioengineered approaches in treating spasticity...
August 21, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/30125729/osteoblast-derived-neurotrophin%C3%A2-3-induces-cartilage-removal-proteases-and-osteoclast-mediated-function-at-injured-growth-plate-in-rats
#6
Yu-Wen Su, Shek Man Chim, Lin Zhou, Mohammadhossein Hassanshahi, Rosa Chung, Chiaming Fan, Yunmei Song, Bruce K Foster, Clive A Prestidge, Yaser Peymanfar, Qian Tang, Lisa M Butler, Stan Gronthos, Di Chen, Yangli Xie, Lin Chen, Xin-Fu Zhou, Jiake Xu, Cory J Xian
Faulty bony repair causes dysrepair of injured growth plate cartilage and bone growth defects in children; however, the underlying mechanisms are unclear. Recently, we observed the prominent induction of neurotrophin‑3 (NT-3) and its important roles as an osteogenic and angiogenic factor promoting the bony repair. The current study investigated its roles in regulating injury site remodelling. In a rat tibial growth plate drill-hole injury repair model, NT-3 was expressed prominently in osteoblasts at the injury site...
August 17, 2018: Bone
https://www.readbyqxmd.com/read/30114429/postnatal-stress-is-associated-with-impaired-fear-conditioning-and-extinction-and-heightened-hippocampal-fibroblast-growth-factor-2-in-mother-rats
#7
Bronwyn M Graham
Rats exposed to early-life maternal separation (MS) exhibit later alterations in fear conditioning and impairments in fear extinction. As MS creates long-lasting anxiety in the mother, the present study assessed the influence of MS on fear conditioning and extinction in mother rats. It also examined whether estrous cycle effects on extinction, which are robust in nulliparous rats, but abolished in primiparous rats, re-emerge after MS. Following parturition, pups were removed from their mothers for 3 h daily from postpartum day 2-14 (MS), or remained housed with their mothers (standard reared condition, SR)...
August 15, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/30110649/maternal-dairy-fat-diet-does-not-influence-neurotrophin-levels-and-cognitive-performance-in-the-rat-offspring-at-adult-age
#8
Shruti Jawale, Sadhana Joshi, Anvita Kale
Cognitive development may be influenced by maternal nutrition especially fats. Indian population is vegetarian and main source of fat is dairy. This study investigates the effect of dairy fat consumption during pregnancy in an animal model on fatty acids, brain neurotrophins (brain derived neurotrophic factor: BDNF; and nerve growth factor: NGF) and cognitive performance in adult offspring. Pregnant Wistar rats were assigned to control (Control C) and four treatment groups: High fat diet (HFD); High fat diet supplemented with omega-3 fatty acids (HFDO); High fat diet deficient in vitamin B12 ( HFBD); High fat deficient in vitamin B12 supplemented with omega-3 fatty acids (HFBDO)...
August 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/30110565/epigenetic-modification-of-intestinal-smooth-muscle-cell-phenotype-during-proliferation
#9
Quinn A Bonafiglia, Sandra R Lourenssen, David J Hurlbut, Michael G Blennerhassett
Inflammation causes proliferation of intestinal smooth muscle cells (ISMC), which contributes to a thickened intestinal wall, and also to stricture formation in Crohn's disease. Proliferation of ISMC both in vitro and in vivo caused decreased expression of marker proteins, but the underlying cause is unclear. Since epigenetic change is important in other systems, we examined this in cell lines from rat colon at either low passage or after extended growth, using immunocytochemistry, immunoblotting and qPCR to evaluate phenotype...
August 15, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/30098383/in-schizophrenia-serum-level-of-neurotrophin-3-nt-3-is-increased-only-if-depressive-symptoms-are-present
#10
Jaśmina Arabska, Anna Łucka, Dominik Strzelecki, Adam Wysokiński
AIM: Neurotrophin-3 (NT-3) is a neurotrophic factor responsible for promoting development, survival and function of neurons. NT-3 may be involved in the etiopathology of schizophrenia and mood disorders. However it must be cleared up if changes of NT-3 level are associated with schizophrenia itself or are secondary to certain symptoms (e.g. negative or depressive). The aim of this study was to examine whether the presence of negative or depressive symptoms affects peripheral NT-3 concentration in patients with schizophrenia...
September 25, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/30072867/selanylimidazopyridine-prevents-lipopolysaccharide-induced-depressive-like-behavior-in-mice-by-targeting-neurotrophins-and-inflammatory-oxidative-mediators
#11
Micaela Domingues, Angela M Casaril, Paloma T Birmann, Darling de A Lourenço, Beatriz Vieira, Karine Begnini, Eder J Lenardão, Tiago Collares, Fabiana K Seixas, Lucielli Savegnago
Inasmuch, as the major depressive disorder (MDD) has been characterized as a heterogeneous disease as the inflammatory processes, neurotrophic factors' dysfunction and oxidative/nitrosative stress are believed to play a vital role in its establishment. Organoselenium compounds stand out due to their antioxidant, anti-inflammatory, neuroprotective, and antidepressant effects. In this sense, the present study investigated the effect of 3-((4-methoxyphenyl)selanyl)-2-phenylimidazo[1,2-a]pyridine (MPI; 20 and 50 mg/kg, intragastrically) pretreatment [30 min prior lipopolysaccharide (LPS) challenge (0...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/30071216/the-dependence-receptor-trkc-regulates-the-number-of-sensory-neurons-during-drg-development
#12
Marie Ménard, Clélia Costechareyre, Juliana M Coelho-Aguiar, Loraine Jarrosson-Wuilleme, Nicolas Rama, Jonathan Blachier, Karine Kindbeiter, Muriel Bozon, Jorge R Cabrera, Elisabeth Dupin, Nicole Le Douarin, Patrick Mehlen, Servane Tauszig-Delamasure
The development of the sensory nervous system is the result of fine-tuned waves of neurogenesis and apoptosis which control the appropriate number of precursors and newly generated neurons and orient them toward a specific lineage. Neurotrophins and their tyrosine-kinase receptors (RTK) orchestrate this process. They have long been in the scope of the neurotrophic theory which established that a neuron is committed to die unless a trophic factor generated by its target provides it with a survival signal. The neural death has thus always been described as a "default" program, survival being the major player to control the number of cells...
October 15, 2018: Developmental Biology
https://www.readbyqxmd.com/read/30059799/glial-derived-growth-factor-and-pleiotrophin-synergistically-promote-axonal-regeneration-in-critical-nerve-injuries
#13
Nesreen Zoghoul Alsmadi, Geetanjali S Bendale, Aswini Kanneganti, Tarik Shihabeddin, An H Nguyen, Elijah Hor, Swarup Dash, Benjamin Johnston, Rafael Granja-Vazquez, Mario I Romero-Ortega
The repair of nerve gap injuries longer than 3 cm is limited by the need to sacrifice donor tissue and the morbidity associated with the autograft gold standard, while decellularized grafts and biodegradable conduits are effective only in short nerve defects. The advantage of isogenic nerve implants seems to be the release of various growth factors by the denervated Schwann cells. We evaluated the effect of vascular endothelial growth factor, neurotrophins, and pleiotrophin (PTN) supplementation of multi-luminal conduits, in the repair of 3 and 4 cm nerve gaps in the rabbit peroneal nerve...
September 15, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/30029870/among-children-born-extremely-preterm-a-higher-level-of-circulating-neurotrophins-is-associated-with-lower-risk-of-cognitive-impairment-at-school-age
#14
Karl C K Kuban, Timothy Heeren, T Michael O'Shea, Robert M Joseph, Raina N Fichorova, Laurie Douglass, Hernan Jara, Jean A Frazier, Deborah Hirtz, H Gerry Taylor, Julie Vanier Rollins, Nigel Paneth
OBJECTIVES: To test the hypothesis that higher blood levels of neurotrophic proteins (proteins that support neuronal survival and function) in the first 2 weeks of life are associated with a lower risk of cognitive impairment at 10 years. STUDY DESIGN: We evaluated 812 10-year-old children with neonatal blood specimens enrolled in the multicenter prospective Extremely Low Gestational Age Newborn Study, assessing 22 blood proteins collected on 3 days over the first 2 weeks of life...
July 18, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/30022437/role-of-a-vgf-bdnf-trkb-autoregulatory-feedback-loop-in-rapid-acting-antidepressant-efficacy
#15
Cheng Jiang, Wei-Jye Lin, Stephen R Salton
Members of the neurotrophin family and in particular brain-derived neurotrophic factor (BDNF) regulate the response to rapid- and slow-acting chemical antidepressants and voluntary exercise. Recent work suggests that rapid-acting antidepressants that modulate N-methyl-D-aspartate receptor (NMDA-R) signaling (e.g., ketamine and GLYX-13) require expression of VGF (non-acronymic), the BDNF-inducible secreted neuronal protein and peptide precursor, for efficacy. In addition, the VGF-derived C-terminal peptide TLQP-62 (named by its 4 N-terminal amino acids and length) has antidepressant efficacy following icv or intra-hippocampal administration, in the forced swim test (FST)...
July 18, 2018: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/30013050/non-viral-mediated-suppression-of-amigo3-promotes-disinhibited-nt3-mediated-regeneration-of-spinal-cord-dorsal-column-axons
#16
Sharif Almutiri, Martin Berry, Ann Logan, Zubair Ahmed
After injury to the mature central nervous system (CNS), myelin-derived inhibitory ligands bind to the Nogo-66 tripartite receptor complex expressed on axonal growth cones, comprised of LINGO-1 and p75NTR /TROY and induce growth cone collapse through the RhoA pathway. We have also shown that amphoterin-induced gene and open reading frame-3 (AMIGO3) substitutes for LINGO-1 and can signal axon growth cone collapse. Here, we investigated the regeneration of dorsal root ganglion neuron (DRGN) axons/neurites after treatment with a short hairpin RNA (sh) AMIGO3 plasmid delivered with a non-viral in vivo-jetPEI vector, and the pro-survival/axogenic neurotrophin (NT) 3 in vitro and in vivo...
July 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30007130/brain-derived-neurotrophic-factor-in-serum-as-an-animal-welfare-indicator-of-environmental-enrichment-in-pigs
#17
J-L Rault, A J Lawrence, C R Ralph
Environment enrichment is a rising topic for animal welfare but measures to identify effective enrichment interventions are lacking. In humans and rodent species, environmental enrichment increases brain-derived neurotrophic factor (BDNF), the most abundant neurotrophin in the brain. Higher BDNF concentration is ultimately linked to higher stress resilience, and BDNF in the hippocampus enhances learning and memory. In addition, BDNF concentrations in the brain and blood are correlated, offering the opportunity to use peripheral BDNF as a minimally invasive measure of effective enrichment reflecting neural changes...
October 2018: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29997519/acute-effects-of-high-intensity-resistance-or-combined-protocol-on-the-increase-of-level-of-neurotrophic-factors-in-physically-inactive-overweight-adults-the-brainfit-study
#18
María A Domínguez-Sanchéz, Rosa H Bustos-Cruz, Gina P Velasco-Orjuela, Andrea P Quintero, Alejandra Tordecilla-Sanders, Jorge E Correa-Bautista, Héctor R Triana-Reina, Antonio García-Hermoso, Katherine González-Ruíz, Carlos A Peña-Guzmán, Enrique Hernández, Jhonatan C Peña-Ibagon, Luis A Téllez-T, Mikel Izquierdo, Robinson Ramírez-Vélez
The purpose of this study was to compare the neurotrophic factor response following one session of high-intensity exercise, resistance training or both in a cohort of physically inactive overweight adults aged 18-30 years old. A randomized, parallel-group clinical trial of 51 men (23.6 ± 3.5 years; 83.5 ± 7.8 kg; 28.0 ± 1.9 kg/m2 ) who are physically inactive (i.e., < 150 min of moderate-intensity exercise per week or IPAQ score of <600 MET min/week for >6 months) and are either abdominally obese (waist circumference ≥90 cm) or have a body mass index, BMI ≥25 and ≤ 30 kg/m2 were randomized to the following four exercise protocols: high-intensity exercise (4 × 4 min intervals at 85-95% maximum heart rate [HRmax] interspersed with 4 min of recovery at 75-85% HRmax) ( n = 14), resistance training (12-15 repetitions per set, at 50-70% of one repetition maximum with 60 s of recovery) ( n = 12), combined high-intensity and resistance exercise ( n = 13), or non-exercising control ( n = 12)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29990834/dexmedetomidine-protects-high-glucose-induced-apoptosis-in-human-retinal-pigment-epithelial-cells-through-inhibition-on-p75-ntr
#19
Ran Liu, Xianke Li, Xiangdong Zhang
BACKGROUND: In both human patients and animals, diabetic condition of high blood glucose induced significant apoptotic responses in retinal pigment epithelial (RPE) cells. In this work, we used an in vitro culture model of human ARPE-19 cells to evaluate whether dexmedetomidine (DEX) may protect high d-glucose (DG)-induced diabetic apoptosis. METHODS: ARPE-19 cells were incubated with DG in vitro to induce apoptosis. Cells were also pre-incubated with different concentrations of DEX prior to DG treatment...
October 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29974835/is-there-any-effect-of-neurotrophin-3-on-the-pathogenesis-of-non-allergic-nasal-polyps
#20
O Ismi, T Kara, G Polat, O Bobusoglu, Y Vayısoglu, K Gorur, C Ozcan
BACKGROUND: Although the role of neurotrophins such as nerve growth factor and brain-derived neurotrophic factor in nasal polyps development has been studied, the contribution of neurotrophin-3 has not been evaluated yet. This study aimed to investigate the possible role of neurotrophin-3 in nasal polyps pathogenesis. METHODS: The study group comprised 70 non-allergic nasal polyps patients and the control group consisted of 53 patients with middle turbinate concha bullosa...
August 2018: Journal of Laryngology and Otology
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