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Journal of Molecular Neuroscience: MN

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https://www.readbyqxmd.com/read/28054226/picroside-ii-exerts-a-neuroprotective-effect-by-inhibiting-the-mitochondria-cytochrome-c-signal-pathway-following-ischemia-reperfusion-injury-in-rats
#1
Hongyan Zhang, Li Zhai, Tingting Wang, Shan Li, Yunliang Guo
Stroke is a common neurodegenerative disease in the wide world, and mitochondrial defects underlie the pathogenesis of ischemia, especially during reperfusion. Picroside II, the principal active component of Picrorhiza, is a traditional Chinese medicine. Our previous study demonstrated that the best therapeutic dose and time window were injection of picroside II at a dose of 10-20 mg/kg body weight following cerebral ischemia by 1.5-2.0 h. In this paper, the neuroprotective effect and the mechanism of picroside II were investigated, as well as its involvement in antioxidant and mitochondria cytochrome C (CytC) signal pathway following ischemia reperfusion (I/R) injury in rats...
January 4, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28035555/erratum-to-17%C3%AE-estradiol-induced-synaptic-rearrangements-are-accompanied-by-altered-ectonucleotidase-activities-in-male-rat-hippocampal-synaptosomes
#2
Nataša Mitrović, Marina Zarić, Dunja Drakulić, Jelena Martinović, Jean Sévigny, Miloš Stanojlović, Nadežda Nedeljković, Ivana Grković
No abstract text is available yet for this article.
December 29, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28025777/brain-development-and-akt-signaling-the-crossroads-of-signaling-pathway-and-neurodevelopmental-diseases
#3
REVIEW
Long Wang, Kai Zhou, Zhi Fu, Di Yu, Hesuyuan Huang, Xiaodong Zang, Xuming Mo
Neurodevelopmental biology, coupled with the application of advanced histological, imaging, molecular, cellular, biochemical, and genetic approaches, has provided new insights into these intricate genetic, cellular, and molecular events. During telencephalic development, specific neural progenitor cells (NPCs) proliferate, differentiate into numerous cell types, migrate to their apposite positions, and form an integrated circuitry. Critical disturbance to this dynamic process via genetic and environmental risk can cause neurological disorders and disability...
December 26, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28012097/mirna-expression-change-in-dorsal-root-ganglia-after-peripheral-nerve-injury
#4
Hsueh-Ling Chang, Hung-Chen Wang, Yi-Ta Chunag, Chao-Wen Chou, I-Ling Lin, Chung-Sheng Lai, Lin-Li Chang, Kuang-I Cheng
The role of microRNAs (miRNAs) in the regulation of nerve injury-induced neuropathic pain is unclear. The aims of this study were to assess and compare miRNA expression profiles in dorsal root ganglia (DRG) following three different kinds of peripheral nerve injury, including spinal nerve ligation (SNL), dorsal root transection (DRT), and ventral root transection (VRT), in Sprague-Dawley rats. Responses to thermal and mechanical stimuli were measured preoperatively and on postoperative days (PODs) 1, 4, and 7...
December 24, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28012096/a-sodium-channel-myotonia-presenting-with-intermittent-dysphagia-as-a-manifestation-of-a-rare-scn4a-variant
#5
Jihane N Benhammou, Jennifer Phan, Hane Lee, Kevin Ghassemi, William Parsons, Wayne W Grody, Joseph R Pisegna
The voltage gated sodium channel SCN4A mutations account for non-dystrophic myotonia and include a heterogeneous group of conditions that include hyperkalemic periodic paralysis, paramyotonica congenita, potassium-aggravated myotonia, and hypokalemic periodic paralysis type 2. This case report proposes that a rare variant p.Pro1629Leu in SCN4A can cause a skeletal muscle deficit with intermittent dysphagia.
December 23, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28000143/update-on-novel-ccm-gene-mutations-in-patients-with-cerebral-cavernous-malformations
#6
Concetta Scimone, Placido Bramanti, Concetta Alafaci, Francesca Granata, Francesco Piva, Carmela Rinaldi, Luigi Donato, Federica Greco, Antonina Sidoti, Rosalia D'Angelo
Cerebral cavernous malformations (CCMs) are lesions affecting brain microvessels. The pathogenesis is not clearly understood. Conventional classification criterion is based on genetics, and thus, familial and sporadic forms can be distinguished; however, classification of sporadic cases with multiple lesions still remains uncertain. To date, three CCM causative genes have been identified: CCM1/KRIT1, CCM2/MGC4607 and CCM3/PDCD10. In our previous mutation screening, performed in a cohort of 95 Italian patients, with both sporadic and familial cases, we identified several mutations in CCM genes...
December 20, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27981419/the-novel-membrane-bound-proteins-mfsd1-and-mfsd3-are-putative-slc-transporters-affected-by-altered-nutrient-intake
#7
Emelie Perland, Sofie V Hellsten, Emilia Lekholm, Mikaela M Eriksson, Vasiliki Arapi, Robert Fredriksson
Membrane-bound solute carriers (SLCs) are essential as they maintain several physiological functions, such as nutrient uptake, ion transport and waste removal. The SLC family comprise about 400 transporters, and we have identified two new putative family members, major facilitator superfamily domain containing 1 (MFSD1) and 3 (MFSD3). They cluster phylogenetically with SLCs of MFS type, and both proteins are conserved in chordates, while MFSD1 is also found in fruit fly. Based on homology modelling, we predict 12 transmembrane regions, a common feature for MFS transporters...
December 16, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27981418/17%C3%AE-estradiol-induced-synaptic-rearrangements-are-accompanied-by-altered-ectonucleotidase-activities-in-male-rat-hippocampal-synaptosomes
#8
Nataša Mitrović, Marina Zarić, Dunja Drakulić, Jelena Martinović, Jean Sévigny, Miloš Stanojlović, Nadežda Nedeljković, Ivana Grković
17β-Estradiol (E2) rapidly, by binding to membrane estrogen receptors, activates cell signaling cascades which induce formation of new dendritic spines in the hippocampus of males as in females, but the interaction with other metabolic processes, such as extracellular adenine nucleotides metabolism, are currently unknown. Extracellular adenine nucleotides play significant roles, controlling excitatory glutamatergic synapses and development of neural circuits and synaptic plasticity. Their precise regulation in the synaptic cleft is tightly controlled by ecto-nucleoside triphosphate diphosphohydrolase (NTPDase)/ecto-5'-nucleotidase (eN) enzyme chain...
December 15, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27943094/primary-brain-calcification-causal-pit2-transport-knockout-variants-can-exert-dominant-negative-effects-on-wild-type-pit2-transport-function-in-mammalian-cells
#9
Frederik Tibert Larsen, Nina Jensen, Jacob Kwasi Autzen, Iben Boutrup Kongsfelt, Lene Pedersen
Primary brain calcification (PBC) is a neurodegenerative disorder characterized by calcium-phosphate deposits in the basal ganglia and often also other areas of the brain. The prevalent clinical manifestations are cognitive impairment, neuropsychiatric symptoms, and movement disorders. In recent years, monoallelic variants in SLC20A2, which encodes the type III sodium-dependent inorganic phosphate (Pi) transporter 2 (PiT2), have been linked to the familial form of PBC in 40-50% of the families reported worldwide as well as to sporadic cases of PBC...
December 9, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27933491/nlrp3-is-required-for-complement-mediated-caspase-1-and-il-1beta-activation-in-ich-short-title-for-running-head-nlrp3-is-required-for-ich
#10
Sheng-Tao Yao, Fang Cao, Jia-Lin Chen, Wei Chen, Rui-Ming Fan, Gang Li, You-Chao Zeng, Song Jiao, Xiang-Ping Xia, Chong Han, Qi-Shan Ran
Complement-mediated inflammation plays a vital role in intracerebral hemorrhage (ICH), implicating pro-inflammatory factor interleukin-1beta (IL-1β) secretion. Brain samples and contralateral hemiencephalon were all collected and detected by Western blot. NLRP3 expression was located by dual immunofluorescence staining at 1, 3, and 5 days post-ICH. Brain water content was examined post-ICH. The neural deficit scores were evaluated by observers blindly. ILs were detected by ELISA. SiRNAs targeting NLRP3 (siNLRP3), siASC, and siControl were injected to inhibit NLRP3 function...
December 8, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27933490/alterations-in-the-cerebral-microvascular-proteome-expression-profile-after-transient-global-cerebral-ischemia-in-rat
#11
Stine Spray, Sara E Johansson, Alistair V G Edwards, Martin R Larsen, Aneta Radziwon-Balicka, Gro K Povlsen, Lars Edvinsson
This study aimed at obtaining an in-depth mapping of expressional changes of the cerebral microvasculature after transient global cerebral ischemia (GCI) and the impact on these GCI-induced expressional changes of post-GCI treatment with a mitogen-activated protein kinase kinase (MEK1/2) inhibitor. GCI was induced in male Wistar rats followed by treatment with either vehicle or the MEK1/2 inhibitor U0126 every 12 h post-GCI. Seventy-two hours after GCI or sham surgery, the cerebral microvasculature was isolated and the protein content analysed with state-of-the-art mass spectrometry...
December 8, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27924451/mir-124-promotes-newborn-olfactory-bulb-neuron-dendritic-morphogenesis-and-spine-density
#12
Guifa Li, Shucai Ling
Using microarray analysis, we detected microRNA-124 (miR-124) to be abundantly expressed in the olfactory bulb (OB). miR-124 regulates adult neurogenesis in the subventricular zone (SVZ). However, much less is known about its role in newborn OB neurons. Here, using both gain-of-function and loss-of-function approaches, we demonstrate that brain-specific miR-124 affects dendritic morphogenesis and spine density in newborn OB neurons. Functional Annotation Clustering of miR-124 targets was enriched in "cell morphogenesis involved in neuron differentiation...
December 6, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27921254/the-impact-of-vitamin-d-supplementation-on-neurodegeneration-tnf-%C3%AE-concentration-in-hypothalamus-and-csf-to-plasma-ratio-of-insulin-in-high-fat-diet-induced-obese-rats
#13
Ghazaleh Nameni, Ghazaleh Hajiluian, Parviz Shahabi, Mahdieh Abbasalizad Farhangi, Mehran Mesgari-Abbasi, Mohammad-Reza Hemmati, Seyed Mahdi Vatandoust
There is growing evidence that obesity can lead to neurodegeneration induced by pro-inflammatory cytokines such as tumor necrosis factor (TNF-α). Moreover, obesity is associated with reduced transport of insulin through the blood-brain barrier (BBB). Insulin deficiency in the brain especially in the hypothalamus region has neurodegenerative and obesity-promoting effects. Because of the anti-inflammatory and neuroprotective effects of vitamin D, in the current experimental study, we aimed to investigate the effects of vitamin D supplementation on neurodegeneration, TNF-α concentration in the hypothalamus, and cerebrospinal fluid (CSF) to serum ratio of insulin in high-fat-diet-induced obese rats...
December 6, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27921253/aberrant-alterations-of-mitochondrial-factors-drp1-and-opa1-in-the-brains-of-scrapie-experiment-rodents
#14
Xiao -Dong Yang, Qi Shi, Jing Sun, Yan Lv, Yue Ma, Cao Chen, Kang Xiao, Wei Zhou, Xiao-Ping Dong
The abnormal mitochondrial dynamics has been reported in the brains of some neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD), but limitedly described in prion disease. Dynamin-related protein 1 (Drpl) and optic atrophy protein 1 (Opa1) are two essential elements for mitochondria fission and fusion. To evaluate possible changes of mitochondria dynamics during prion infection, the situations of brain Drp1 and Opa1 of scrapie strains 139A, ME7, and S15 mice, as well as 263K-infected hamsters, were analyzed...
December 6, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27909871/nap-interferes-with-hypoxia-inducible-factors-and-vegf-expression-in-retina-of-diabetic-rats
#15
Agata Grazia D'Amico, Grazia Maugeri, Claudio Bucolo, Salvatore Saccone, Concetta Federico, Sebastiano Cavallaro, Velia D'Agata
The retinal microvascular damage is a complication of diabetic retinopathy (DR). Hyperglycemia and hypoxia are responsible of aberrant vessel's proliferation. The cellular response to hypoxia is mediated through activation of hypoxia-inducible factors (HIFs). Among these, HIF-1α modulates expression of its target gene, VEGF, whose upregulation controls the angiogenic event during DR development. In a previous study, we have demonstrated that a small peptide, NAP, is able to protect retina from hyperglycemic insult...
December 1, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27905005/microrna-128-3p-protects-mouse-against-cerebral-ischemia-through-reducing-p38%C3%AE-mitogen-activated-protein-kinase-activity
#16
Guochao Mao, Pengyu Ren, Gang Wang, Feng Yan, Yuelin Zhang
The p38α, also named Mapk14, is a pro-apoptotic protein, which is reported to be downregulated 2 h after cerebral ischemia. However, little is known what causes the downregulation of p38α protein level. Here, we studied the effect of cerebral ischemia on p38α mRNA expression and p38α protein level in brain of mice. We found that p38α protein level is reduced after middle cerebral artery occlusion. However, at the meantime, p38α mRNA expression has no detectable changes, suggesting that the possible posttranscription is regulated by ischemia...
November 30, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27888397/synaptosome-associated-protein-25-snap25-gene-association-analysis-revealed-risk-variants-for-asd-in-iranian-population
#17
Mohammad Reza Safari, Mir Davood Omrani, Rezvan Noroozi, Arezou Sayad, Shaghayegh Sarrafzadeh, Alireza Komaki, Fateme Asadzadeh Manjili, Mehrdokht Mazdeh, Ali Ghaleiha, Mohammad Taheri
Autism spectrum disorder (ASD) is a common, complex neurological condition, affecting approximately 1% of people worldwide. Monogenic neurodevelopmental disorders which showed autistic behavior patterns have suggested synaptic dysfunction, as a key mechanism in the pathophysiology of ASD. Subsequently, genes involved in synaptic signaling have been investigated with a priority for candidate gene studies. A synaptosomal-associated protein 25 (SNAP25) gene plays a crucial role in the central nervous system, contributing to exocytosis by targeting and fusion of vesicles to the cell membrane...
November 26, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27888396/effects-of-administered-ethanol-and-methamphetamine-on-glial-glutamate-transporters-in-rat-striatum-and-hippocampus
#18
Fahad S Alshehri, Yusuf S Althobaiti, Youssef Sari
Exposure to ethanol (EtOH) or methamphetamine (MA) can lead to increase in extracellular glutamate concentration in the brain. Although studies from ours showed the effects of EtOH exposure on key glial glutamate transporters, little is known about the effects of sequential exposure to EtOH and MA or MA alone on certain glial glutamate transporters. In this study, we investigated the effects of sequential exposure to EtOH and MA on the expression of the major glutamate transporters, glutamate transporter 1 (GLT-1), as well as cystine/glutamate antiporter (xCT) and glutamate aspartate transporter (GLAST) in striatum and hippocampus...
November 25, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27885529/lack-of-aquaporin-9-reduces-brain-angiogenesis-and-exaggerates-neuronal-loss-in-the-hippocampus-following-intracranial-hemorrhage-in-mice
#19
Weiyang Ji, Jing Wang, Jie Xu, Xudong Zhao, Xing Xu, Xiaojie Lu
Intracranial hemorrhage (ICH) is a common subtype of stroke with high morbidity and mortality. However, few clinical therapies that can reduce ICH-induced brain injury and promote the recovery outcome in ICH patients are available to improve the recovery from ICH. Given that aquaporin 9 (AQP9) plays a critical role in brain edema after ischemic stroke and traumatic brain injury and is involved in the regulation of angiogenesis, we examined the role of AQP9 in preventing neuronal loss and in neovascularization in the dorsal hippocampus (DH) after ICH...
November 24, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27866326/the-neuroprotective-peptide-poly-arginine-12-r12-reduces-cell-surface-levels-of-nmda-nr2b-receptor-subunit-in-cortical-neurons-investigation-into-the-involvement-of-endocytic-mechanisms
#20
Gabriella MacDougall, Ryan S Anderton, Adam B Edwards, Neville W Knuckey, Bruno P Meloni
We have previously reported that cationic poly-arginine and arginine-rich cell-penetrating peptides display high-level neuroprotection and reduce calcium influx following in vitro excitotoxicity, as well as reduce brain injury in animal stroke models. Using the neuroprotective peptides poly-arginine R12 (R12) and the NR2B9c peptide fused to the arginine-rich carrier peptide TAT (TAT-NR2B9c; also known as NA-1), we investigated the mechanisms whereby poly-arginine and arginine-rich peptides reduce glutamate-induced excitotoxic calcium influx...
November 20, 2016: Journal of Molecular Neuroscience: MN
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