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https://www.readbyqxmd.com/read/28523294/autophagy-in-aging-and-disease
#1
Mădălina Fîlfan, Raluca Elena Sandu, Alexandra Daniela Zăvăleanu, Andrei GreşiŢă, Daniela Gabriela Glăvan, Denissa Greta Olaru, Aurel Popa-Wagner
Autophagy is a catabolic degradation system used to destroy and recycle the unnecessary or damaged components of a cell. Autophagy is present at a basal level in all mammals and is regulated by some conditions, such as oxidative stress, starvation or hypoxia. In aged tissues, increased but also decreased expression of autophagy-specific proteins, Beclin 1, LC3, Atg5 and Atg7 has been reported. Likewise, it could be shown that the lifespan of yeast, nematodes and flies is prolonged by pharmacologically stimulated autophagy using exogenous administered spermidine...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28511127/neurophysiology-of-synaptic-functioning-in-multiple-sclerosis
#2
REVIEW
Mario Stampanoni Bassi, Francesco Mori, Fabio Buttari, Girolama A Marfia, Andrea Sancesario, Diego Centonze, Ennio Iezzi
Multiple sclerosis (MS) is an inflammatory immune-mediate disorder of the central nervous system (CNS), primarily affecting the myelin sheath and followed by neurodegeneration. Synaptic alterations are emerging as critical determinants of early neurodegeneration in MS. Inflammation-induced alterations of synaptic transmission and plasticity have been investigated in vitro and also in human MS using transcranial magnetic stimulation (TMS) techniques. Specific inflammatory cytokines alter glutamatergic and GABAergic transmission, resulting in synaptic hyperexcitability...
April 24, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28504198/rapamycin-suppresses-a%C3%AE-25-35-or-lps-induced-neuronal-inflammation-via-modulation-of-nf-%C3%AE%C2%BAb-signaling
#3
Ying-Chun Liu, Xiao-Xiao Gao, Ling Chen, Xiao-Qing You
Rapamycin (RAPA), an inhibitor of mammalian target of rapamycin (mTOR), exhibits a high neuroprotective action against neurodegenerative diseases in mouse models. Since neuroinflammation has been shown to be involved in Alzheimer's disease (AD) development and progression, the aim of this study was to examine the anti-inflammatory role of RAPA in AD in vivo and in vitro, and investigate the underlying mechanisms. We found that amyloid-β (Aβ) induced neuronal inflammation and a remarkable increase in mTOR activity in in-vivo and in-vitro models of inflammation, suggesting the critical role of mTOR signaling in neuronal inflammation...
May 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28499252/crosstalk-between-hdac6-and-nox2-based-nadph-oxidase-mediates-hiv-1-tat-induced-pro-inflammatory-responses-in-astrocytes
#4
Gi Soo Youn, Hyundong Cho, Donggyu Kim, Soo Young Choi, Jinseu Park
Histone deacetylase 6 (HDAC6) likely is important in inflammatory diseases. However, how HDAC6 exerts its effect on inflammatory processes remains unclear. HIV-1 transactivator of transcription (Tat) activates NADPH oxidase resulting in generation of reactive oxygen species (ROS), leading to extensive neuro-inflammation in the central nervous system. We investigated the correlation of HDAC6 and NADPH oxidase in HIV-1 Tat-stimulated astrocytes. HDAC6 knockdown attenuated HIV-1 Tat-induced ROS generation and NADPH oxidase activation...
May 4, 2017: Redox Biology
https://www.readbyqxmd.com/read/28494768/inhibition-of-cd40-traf6-interactions-by-the-small-molecule-inhibitor-6877002-reduces-neuroinflammation
#5
Suzanne A B M Aarts, Tom T P Seijkens, Pascal J H Kusters, Susanne M A van der Pol, Barbara Zarzycka, Priscilla D A M Heijnen, Linda Beckers, Myrthe den Toom, Marion J J Gijbels, Louis Boon, Christian Weber, Helga E de Vries, Gerry A F Nicolaes, Christine D Dijkstra, Gijs Kooij, Esther Lutgens
BACKGROUND: The influx of leukocytes into the central nervous system (CNS) is a key hallmark of the chronic neuro-inflammatory disease multiple sclerosis (MS). Strategies that aim to inhibit leukocyte migration across the blood-brain barrier (BBB) are therefore regarded as promising therapeutic approaches to combat MS. As the CD40L-CD40 dyad signals via TNF receptor-associated factor 6 (TRAF6) in myeloid cells to induce inflammation and leukocyte trafficking, we explored the hypothesis that specific inhibition of CD40-TRAF6 interactions can ameliorate neuro-inflammation...
May 12, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28476689/pax6-interacts-with-iba1-and-shows-age-associated-alterations-in-brain-of-aging-mice
#6
Shashank Kumar Maurya, Rajnikant Mishra
The Pax6, a transcriptional regulator and multifunctional protein, has been found critical for neurogenesis, neuro-degeneration, mental retardation, neuroendocrine tumors, glioblastoma and astrocytomas. The age-associated alteration in the expression of Pax6 in neuron and glia has also been observed in the immunologically privileged brain. Therefore, it is presumed that Pax6 may modulate brain immunity by activation of microglia either directly interacting with genes or proteins of microglia or indirectly though inflammation associated with neurodegeneration...
May 3, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28472257/expression-of-ecto-nucleoside-triphosphate-diphosphohydrolases-2-and-3-in-the-enteric-nervous-system-impacts-inflammation-in-experimental-colitis-and-crohn-s-disease
#7
Linda Feldbrügge, Alan C Moss, Eric U Yee, Eva Csizmadia, Shuji Mitsuhashi, Maria Serena Longhi, Bynvant Sandhu, Holger Stephan, Yan Wu, Adam S Cheifetz, Christa E Müller, Jean Sévigny, Simon C Robson, Z Gordon Jiang
Objective: Recent studies have suggested that the enteric nervous system can modulate gut immunity. Ecto-nucleoside triphosphate diphosphohydrolases (E-NTPDases) regulate purinergic signaling by sequential phosphohydrolysis of pro-inflammatory extracellular ATP. Herein, we test the hypothesis that E-NTPDases modulate gut inflammation via neuro-immune crosstalk. Design: We determined expression patterns of NTPDase2 and NTPDase3 in murine and human colon. Experimental colitis was induced by dextran sodium sulfate (DSS) in genetically engineered mice deficient in NTPDase2 or NTPDase3...
May 2, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28471166/crocus-sativus-extract-tightens-the-blood-brain-barrier-reduces-amyloid-%C3%AE-load-and-related-toxicity-in-5xfad-mice
#8
Yazan S Batarseh, Sonali S Bharate, Vikas Kumar, Ajay Kumar, Ram A Vishwakarma, Sandip B Bharate, Amal Kaddoumi
Crocus sativus, commonly known as saffron or Kesar, is used in Ayurveda and other folk medicines for various purposes as an aphrodisiac, antispasmodic, and expectorant. Previous evidence suggested that Crocus sativus is linked to improving cognitive function in Alzheimer's disease (AD) patients. The aim of this study was to in vitro and in vivo investigate the mechanism(s) by which Crocus sativus exerts its positive effect against AD. The effect of Crocus sativus extract on Aβ load and related toxicity was evaluated...
May 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28465217/antidepressants-induce-autophagy-dependent-nlrp3-inflammasome-inhibition-in-major-depressive-disorder
#9
Elísabet Alcocer-Gómez, Nieves Casas-Barquero, Matthew R Williams, Samuel L Romero-Guillena, Diego Cañadas-Lozano, Pedro Bullón, José Antonio Sánchez-Alcazar, José M Navarro-Pando, Mario D Cordero
Major Depressive Disorder (MDD, ICD-10: F-33) is a prevalent illness in which the pathogenic mechanism remains elusive. Recently an important role has been attributed to neuro-inflammation, and specifically the NLRP3-inflammasome complex, in the pathogenesis of MDD. This suggests a key role for immunomodulation as a key pathway in the treatment of this disorder. This study evaluates the involvement of nine common antidepressants in the NLRP3-inflammasome complex (fluoxetine, paroxetine, mianserin, mirtazapine, venlafaxine, desvenlafaxine, amitriptyline, imipramine and agomelatine), both in in vitro THP-1 cells stimulated by ATP, and in a stress-induced depressive animal or MDD patients...
May 2, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28460142/comparative-proteomics-reveals-silver-nanoparticles-alter-fatty-acid-metabolism-and-amyloid-beta-clearance-for-neuronal-apoptosis-in-a-triple-cell-co-culture-model-of-the-blood-brain-barrier
#10
Ho-Chen Lin, Ming-Yi Ho, Chao-Ming Tsen, Chien-Chu Huang, Chin-Ching Wu, Yuh-Jeen Huang, I-Lun Hsiao, Chun-Yu Chuang
Silver nanoparticles (AgNPs) enter the central nervous system through the blood-brain barrier (BBB). AgNP exposure can increase amyloid beta (Aβ) deposition in neuronal cells to potentially induce Alzheimer disease (AD) progression. However, the mechanism through which AgNPs alter BBB permeability in endothelial cells and subsequently lead to AD progression remains unclear. This study investigated whether AgNPs disrupt the tight junction proteins of brain endothelial cells, and alter the proteomic metabolism of neuronal cells underlying AD progression in a triple cell co-culture model constructed using mouse brain endothelial (bEnd...
April 29, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28438472/shared-metabolic-and-immune-inflammatory-oxidative-and-nitrosative-stress-pathways-in-the-metabolic-syndrome-and-mood-disorders
#11
REVIEW
Luiz Gustavo Piccoli de Melo, Sandra Odebrecht Vargas Nunes, George Anderson, Heber Odebrecht Vargas, Décio Sabbattini Barbosa, Piotr Galecki, André F Carvalho, Michael Maes
This review examines the shared immune-inflammatory, oxidative and nitrosative stress (IO&NS) and metabolic pathways underpinning metabolic syndrome (MetS), bipolar disorder (BD) and major depressive disorder (MDD). Shared pathways in both MetS and mood disorders are low grade inflammation, including increased levels of pro-inflammatory cytokines and acute phase proteins, increased lipid peroxidation with formation of malondialdehyde and oxidized low density lipoprotein cholesterol (LDL-c), hypernitrosylation, lowered levels of antioxidants, most importantly zinc and paraoxonase (PON1), increased bacterial translocation (leaky gut), increased atherogenic index of plasma and Castelli risk indices; and reduced levels of high-density lipoprotein (HDL-c) cholesterol...
April 21, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28420969/acquisition-maintenance-and-relapse-like-alcohol-drinking-lessons-from-the-uchb-rat-line
#12
REVIEW
Yedy Israel, Eduardo Karahanian, Fernando Ezquer, Paola Morales, Marcelo Ezquer, Mario Rivera-Meza, Mario Herrera-Marschitz, María E Quintanilla
This review article addresses the biological factors that influence: (i) the acquisition of alcohol intake; (ii) the maintenance of chronic alcohol intake; and (iii) alcohol relapse-like drinking behavior in animals bred for their high-ethanol intake. Data from several rat strains/lines strongly suggest that catalase-mediated brain oxidation of ethanol into acetaldehyde is an absolute requirement (up 80%-95%) for rats to display ethanol's reinforcing effects and to initiate chronic ethanol intake. Acetaldehyde binds non-enzymatically to dopamine forming salsolinol, a compound that is self-administered...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28419968/current-insights-into-pathogenesis-of-parkinson-s-disease-approach-to-mevalonate-pathway-and-protective-role-of-statins
#13
REVIEW
Seyed Soheil Saeedi Saravi, Seyed Sobhan Saeedi Saravi, Katayoun Khoshbin, Ahmad Reza Dehpour
Although Parkinson's disease (PD) is considered as the second most common life threatening age-related neurodegenerative disorder, but the underlying mechanisms for pathogenesis of PD are remained to be fully found. However, a complex relationship between genetic and environmental predisposing factors are involved in progression of PD. Dopaminergic neuronal cell death caused by mutations and accumulation of α-synuclein in Lewy bodies and neurites was suggested as the main strategy for PD, but current studies have paid attention to the role of mevalonate pathway in incidence of neurodegenerative diseases including PD...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28417344/biotherapy-in-inflammatory-diseases-of-the-cns-current-knowledge-and-applications
#14
REVIEW
Nicolas Collongues, Laure Michel, Jérôme de Seze
Biotherapy represents an innovative therapeutic approach that includes immunotherapy (vaccines, apheresis, and antibodies); gene therapy; and stem cell transplants. Their development helps to cross the bridge from bench to bedside and brings new hope of a cure for severe diseases in different fields of medicine. In neurology, a growing range of applications is being developed for these medications. Valuable results are now available in the field of autoimmunity, neuro-oncology, paraneoplastic manifestations, and neurodegenerative disorders...
May 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28412496/magnesium-sulfate-mg-prevents-maternal-inflammation-induced-offspring-cerebral-injury-evident-on-mri-but-not-via-il-1%C3%AE
#15
Yuval Ginsberg, Nizar Khatib, Boaz Weiss, Shay Arison, Michael G Ross, Zeev Weiner, Ron Beloosesky
OBJECTIVE: As maternal treatment with magnesium sulfate (MG) may protect the fetal brain, we sought to assess the inflammation associated neuroprotective potential of MG and its association to interleukin 1β (IL-1β). METHODS: Pregnant Sprague-Dawley rats at 18-day gestation received i.p. lipopolysaccharide (LPS) or saline. Dams were randomized to treatment with s.c. saline (control), or MG prior to or following the i.p. injection, resulting in three groups. At the end of the treatment, fetal brain IL-1β was quantified for 18 pregnant rats (six of each group)...
April 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/28411233/vasculopathy-in-the-setting-of-cardiorenal-syndrome-the-roles-of-protein-bound-uremic-toxins
#16
Jingbin Guo, Lu Lu, Yue Hua, Kevin Huang, Ian Wang, Li Huang, Qiang Fu, Aihua Chen, Paul Chan, Huimin Fan, Zhong-Min Liu, Bing Hui Wang
Chronic kidney disease (CKD) often leads to and accelerates the progression of cardiovascular disease (CVD), whilst CVD also causes kidney dysfunction. This bidirectional interaction leads to the development of a complex syndrome known as cardiorenal syndrome (CRS). CRS not only involves both the heart and the kidney, but also the vascular system through a vast array of contributing factors. In addition to hemodynamic, neuro-hormonal, mechanical and biochemical factors, the non-dialyzable protein-bound uremic toxins (PBUTs) are also key contributing factors that have been demonstrated through in vitro, in vivo and clinical observations...
April 14, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28410605/frosted-branch-angiitis-and-cerebral-venous-sinus-thrombosis-as-an-initial-onset-of-neuro-beh%C3%A3-et-s-disease-a-case-report-and-review-of-the-literature
#17
Bruno Fortaleza de Aquino Ferreira, Ever Ernesto Caso Rodriguez, Leandro Lara do Prado, Celio Roberto Gonçalves, Carlos Eduardo Hirata, Joyce Hisae Yamamoto
BACKGROUND: Frosted branch angiitis is a rare, severe condition. It can be either a primary or a secondary condition and is characterized by rapid deterioration of vision and fulminant retinal vasculitis that manifests as diffuse sheathing of retinal vessels, macular edema, papillitis, vitritis and anterior uveitis. We aimed to describe a case of frosted branch angiitis and cerebral venous sinus thrombosis as an initial neuro-Behçet's disease onset. Diagnosis of Behçet's disease was based on the current 2014 International Criteria for Behçet's Disease and the International consensus recommendation criteria for neuro-Behçet's disease...
April 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28402258/cd200fc-reduces-lps-induced-il-1%C3%AE-activation-in-human-cervical-cancer-cells-by-modulating-tlr4-nf-%C3%AE%C2%BAb-and-nlrp3-inflammasome-pathway
#18
Aiqin He, Jia Shao, Yu Zhang, Hong Lu, Zhijun Wu, Yunzhao Xu
Chronic inflammation plays an important role in tumorigenesis of cervical cancer. CD200Fc, a CD200R1 agonist, has been found to have anti-inflammatory effects in autoimmune diseases and neuro-degeneration. However, the anti-inflammatory effect of CD200Fc on cervical cancer has not yet to be completely understood. This study investigated the anti-inflammatory effects and mechanisms of CD200Fc in LPS-induced human SiHa cells and Caski cells. SiHa cells and Caski cells were stimulated with 40 μg/ml LPS under different concentrations of CD200Fc for 90 min or 12 hours...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28400502/cholinergic-agonists-reduce-blood-pressure-in-a-mouse-model-of-systemic-lupus-erythematosus
#19
Amber S Fairley, Keisa W Mathis
Increased inflammation arising from an abnormal immune response can damage healthy tissue and lead to disease progression. An important example of this is the accumulation of inflammatory mediators in the kidney, which can subsequently lead to hypertension and renal injury. The origin of this inflammation may involve neuro-immune interactions. For example, the novel vagus nerve-to-spleen mechanism known as the "cholinergic anti-inflammatory pathway" controls inflammation upon stimulation. However, if this pathway is dysfunctional, inflammation becomes less regulated and chronic inflammatory diseases such as hypertension may develop...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28400259/a-role-for-the-peripheral-immune-system-in-the-development-of-alcohol-use-disorders
#20
REVIEW
Philippe de Timary, Peter Stärkel, Nathalie M Delzenne, Sophie Leclercq
Preclinical studies have largely supported that alcohol-consumption induces the development of an important neuro-inflammation and this neuro-inflammation contributes to alcohol-drinking behaviors, notably through TLR4 and LPS related mechanisms. The neuro-inflammation originates from a direct interaction of ethanol with the neuronal and immune brain cells, but also from the generation of an inflammation at the periphery. Ethanol in particular interacts with the intestine to develop a gut dysbiosis and an increase in gut permeability, that allows the liberation of bacterial fragments to the systemic circulation and induces a pro-inflammatory response in the systemic circulation and peripheral organs, and in particular the liver...
April 8, 2017: Neuropharmacology
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