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Neuroinflammation

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https://www.readbyqxmd.com/read/29217656/anti-inflammatory-effects-of-omega-3-fatty-acids-in-the-brain-physiological-mechanisms-and-relevance-to-pharmacology
#1
REVIEW
Sophie Layé, Agnès Nadjar, Corinne Joffre, Richard P Bazinet
Classically, polyunsaturated fatty acids (PUFA) were largely thought to be relatively inert structural components of brain, largely important for the formation of cellular membranes. Over the past 10 years, a host of bioactive lipid mediators that are enzymatically derived from arachidonic acid, the main n-6 PUFA, and docosahexaenoic acid, the main n-3 PUFA in the brain, known to regulate peripheral immune function, have been detected in the brain and shown to regulate microglia activation. Recent advances have focused on how PUFA regulate the molecular signaling of microglia, especially in the context of neuroinflammation and behavior...
January 2018: Pharmacological Reviews
https://www.readbyqxmd.com/read/29217401/influence-of-correlation-between-hla-g-polymorphism-and-interleukin-6-il6-gene-expression-on-the-risk-of-schizophrenia
#2
Venkataram Shivakumar, Monojit Debnath, Deepthi Venugopal, Ashwini Rajasekaran, Sunil V Kalmady, Manjula Subbanna, Janardhanan C Narayanaswamy, Anekal C Amaresha, Ganesan Venkatasubramanian
Converging evidence suggests important implications of immuno-inflammatory pathway in the risk and progression of schizophrenia. Prenatal infection resulting in maternal immune activation and developmental neuroinflammation reportedly increases the risk of schizophrenia in the offspring by generating pro-inflammatory cytokines including IL-6. However, it is not known how prenatal infection can induce immuno-inflammatory responses despite the presence of immuno-inhibitory Human Leukocyte Antigen-G (HLA-G) molecules...
December 4, 2017: Cytokine
https://www.readbyqxmd.com/read/29217355/crocetin-attenuates-spared-nerve-injury-induced-neuropathic-pain-in%C3%A2-mice
#3
Xiaolei Wang, Guangqing Zhang, Yong Qiao, Chang Feng, Xin Zhao
Crocetin is the main component of saffron and exhibits anti-oxidative and anti-inflammatory effects. Neuroinflammation and oxidative stress have been recognized to play a crucial role in the pathogenesis of neuropathic pain. We investigated the effect of crocetin in a mouse model with neuropathic pain induced by spared nerve injury (SNI). Crocetin was intrathecally perfused at various doses for up to 12 days starting 3 days before the surgery. Behavioral tests were performed to determine pain sensitivity. The concentrations of proinflammatory cytokines tumor necrosis factor (TNF-α) and interleukin-1β (IL-1β) were measured to assess neuroinflammation...
November 24, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29217173/7-fluoro-1-3-diphenylisoquinoline-reverses-motor-and-non-motor-symptoms-induced-by-mptp-in-mice-role-of-striatal-neuroinflammation
#4
Tuane Bazanella Sampaio, Marcel Henrique Marcondes Sari, Ana Paula Pesarico, Anderson Carboni Mantovani, Gilson Zeni, Cristina Wayne Nogueira
Parkinson's disease (PD) is a dopaminergic neurodegenerative disorder, which presents motor and non-motor symptoms.7-Fluoro-1,3-diphenylisoquinoline (FDPI) is an isoquinoline compound with antioxidant and antidepressant properties. This study investigated whether FDPI reverses motor and non-motor symptoms in an acute mouse model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). It was also assessed the anti-inflammatory mechanisms in FDPI pharmacological action. C57Bl/6 male adult mice received four MPTP (20mg/kg, intraperitoneal) or saline (vehicle) injections to induce an acute PD model...
December 4, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29215727/secreted-frizzled-related-protein-1-regulates-the-progression-of-neuropathic-pain-in-mice-following-spinal-nerve-ligation
#5
Jun Tang, Qing Ji, Li Jin, Mi Tian, Li Dong Zhang, Xiao Yu Liu
Previous studies have showed that the Wnt/β-catenin signaling pathway plays an important role in modulating neuropathic pain after sciatic nerve injury. In this study, we explored the role of secreted frizzled-related protein 1 (SFRP1), a Wnt antagonist, in neuropathic pain using a rat model following spinal nerve ligation (SNL). We found SNL-induced SFRP1 downregulation in the spinal cord. Further, the overexpression of SFRP1 via spinal injection into the spinal cord attenuated SNL-induced allodynia, hyperalgesia and neuroinflammation...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29215318/therapeutic-potential-of-silymarin-in-chronic-unpredictable-mild-stress-induced-depressive-like-behavior-in-mice
#6
Vishnu N Thakare, Rajesh R Patil, Rajesh J Oswal, Valmik D Dhakane, Manoj K Aswar, Bhoomika M Patel
Silymarin, a plant-derived polyphenolic flavonoid of Silybum marianum, elicited significant antidepressant-like activity in an acute restraint stress model of depression. It improved monoamines, mainly 5-hydroxytryptamine (5-HT) levels in the cortex, dopamine (DA) and norepinephrine (NE) in the cerebellum in mice. The present study was undertaken to explore the antidepressant potential of silymarin in chronic unpredictable mild stress (CUMS) induced depressive-like behavior in mice, and to find out its probable mechanism(s) of action, mainly neurogenesis, neuroinflammation, and/or oxidative stress...
December 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29215028/effect-of-canola-oil-consumption-on-memory-synapse-and-neuropathology-in-the-triple-transgenic%C3%A2-mouse-model-of-alzheimer-s-disease
#7
Elisabetta Lauretti, Domenico Praticò
In recent years consumption of canola oil has increased due to lower cost compared with olive oil and the perception that it shares its health benefits. However, no data are available on the effect of canola oil intake on Alzheimer's disease (AD) pathogenesis. Herein, we investigated the effect of chronic daily consumption of canola oil on the phenotype of a mouse model of AD that develops both plaques and tangles (3xTg). To this end mice received either regular chow or a chow diet supplemented with canola oil for 6 months...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214654/role-of-the-innate-immune-system-in-the-neuropathological-consequences-induced-by-adolescent-binge-drinking
#8
REVIEW
María Pascual, Jorge Montesinos, Consuelo Guerri
Adolescence is a critical stage of brain maturation in which important plastic and dynamic processes take place in different brain regions, leading to development of the adult brain. Ethanol drinking in adolescence disrupts brain plasticity and causes structural and functional changes in immature brain areas (prefrontal cortex, limbic system) that result in cognitive and behavioral deficits. These changes, along with secretion of sexual and stress-related hormones in adolescence, may impact self-control, decision making, and risk-taking behaviors that contribute to anxiety and initiation of alcohol consumption...
December 7, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29212744/selective-nlrp3-pyrin-domain-containing-protein-3-inflammasome-inhibitor-reduces-brain-injury-after-intracerebral-hemorrhage
#9
Honglei Ren, Ying Kong, Zhijia Liu, Dongyun Zang, Xiaoxia Yang, Kristofer Wood, Minshu Li, Qiang Liu
BACKGROUND AND PURPOSE: Intracerebral hemorrhage (ICH) is a devastating disease without effective treatment. As a key component of the innate immune system, the NOD-like receptor (NLR) family, NLRP3 (pyrin domain-containing protein 3) inflammasome, when activated after ICH, promotes neuroinflammation and brain edema. MCC950 is a potent, selective, small-molecule NLRP3 inhibitor that blocks NLRP3 activation at nanomolar concentrations. Here, we examined the effect of MCC950 on brain injury and inflammation in 2 models of ICH in mice...
December 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29212498/salvianolic-acid-b-protects-against-lipopolysaccharide-induced-behavioral-deficits-and-neuroinflammatory-response-involvement-of-autophagy-and-nlrp3-inflammasome
#10
Pei Jiang, Yujin Guo, Ruili Dang, Mengqi Yang, Dehua Liao, Huande Li, Zhen Sun, Qingyan Feng, Pengfei Xu
BACKGROUND: The NLRP3 inflammasome activation and neuroinflammation are known to be involved in the pathology of depression, whereas autophagy has multiple effects on immunity, which is partly mediated by the regulation of inflammasome and clearance of proinflammatory cytokines. Given the emerging evidence that autophagy dysfunction plays an essential role in depression, it is very likely that autophagy may interact with the inflammatory process in the development and treatment of depression...
December 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29211044/similarity-and-differences-in-inflammation-related-characteristics-of-the-peripheral-immune-system-of-patients-with-parkinson-s-and-alzheimer-s-diseases
#11
REVIEW
Anna A Boyko, Natalya I Troyanova, Elena I Kovalenko, Alexander M Sapozhnikov
Parkinson's disease (PD) and Alzheimer's disease (AD) are the most common age-related neurodegenerative disorders. Both diseases are characterized by chronic inflammation in the brain-neuroinflammation. The first signs of PD and AD are most often manifested in old age, in which the immune system is usually characterized by chronic inflammation, so-called "inflammaging" In recent years, there is growing evidence that pathogenesis of these diseases is connected with both regional and peripheral immune processes...
December 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29209747/an-adverse-outcome-pathway-for-parkinsonian-motor-deficits-associated-with-mitochondrial-complex-i-inhibition
#12
REVIEW
Andrea Terron, Anna Bal-Price, Alicia Paini, Florianne Monnet-Tschudi, Susanne Hougaard Bennekou, Marcel Leist, Stefan Schildknecht
Epidemiological studies have observed an association between pesticide exposure and the development of Parkinson's disease, but have not established causality. The concept of an adverse outcome pathway (AOP) has been developed as a framework for the organization of available information linking the modulation of a molecular target [molecular initiating event (MIE)], via a sequence of essential biological key events (KEs), with an adverse outcome (AO). Here, we present an AOP covering the toxicological pathways that link the binding of an inhibitor to mitochondrial complex I (i...
December 5, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29209169/amyloid-%C3%AE-homeostasis-bridges-inflammation-synaptic-plasticity-deficits-and-cognitive-dysfunction-in-multiple-sclerosis
#13
Mario Stampanoni Bassi, Sara Garofalo, Girolama A Marfia, Luana Gilio, Ilaria Simonelli, Annamaria Finardi, Roberto Furlan, Giulia M Sancesario, Jonny Di Giandomenico, Marianna Storto, Francesco Mori, Diego Centonze, Ennio Iezzi
Cognitive deficits are frequently observed in multiple sclerosis (MS), mainly involving processing speed and episodic memory. Both demyelination and gray matter atrophy can contribute to cognitive deficits in MS. In recent years, neuroinflammation is emerging as a new factor influencing clinical course in MS. Inflammatory cytokines induce synaptic dysfunction in MS. Synaptic plasticity occurring within hippocampal structures is considered as one of the basic physiological mechanisms of learning and memory. In experimental models of MS, hippocampal plasticity is profoundly altered by proinflammatory cytokines...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29209167/heme-oxygenase-1-induction-by-carbon-monoxide-releasing-molecule-3-suppresses-interleukin-1%C3%AE-mediated-neuroinflammation
#14
Chih-Chung Lin, Chien-Chung Yang, Li-Der Hsiao, Ssu-Yu Chen, Chuen-Mao Yang
Neurodegenerative disorders and brain damage are initiated by excessive production of reactive oxygen species (ROS), which leads to tissue injury, cellular death and inflammation. In cellular anti-oxidant systems, heme oxygenase-1 (HO-1) is an oxidative-sensor protein induced by ROS generation or carbon monoxide (CO) release. CO releasing molecules (CORMs), including CORM-3, exert anti-oxidant and anti-inflammatory effects. However, the molecular mechanisms of CORM-3-induced HO-1 expression and protection against interleukin (IL)-1β-induced inflammatory responses have not been fully elucidated in rat brain astrocytes (RBA-1)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29208407/dehydrocavidine-attenuates-d-galactose-induced-learning-and-memory-impairment-in-rats
#15
Peng Fu, Qing Zhang, Dong-Ye Yi, Ahmed Abdelmaksoud, Qin Huang, Hong-Yang Zhao, Wei Xiang, Nan-Xiang Xiong
OBJECTIVE: Dehydrocavidine (DEH) is the major component of a plant corydalis saxicola Bunting, which is used to treat the patients with hepatic disorders, there is still no report about the effect of DEH on the brain disorder. In this study, the effect and mechanism of DEH on D-galactose (D-gala) induced learning and memory impairment in rats was investigated. METHODS: A learning and memory impairment rat model was employed by chronic intraperitoneal injection of D-gala and intragastric administration of DEH, then Morris water maze test was used to investigate the effect of DEH on learning and memory impairment, Golgi stain and biochemical methods, real time PCR were used to investigate underlying mechanism...
December 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29207498/steppogenin-isolated-from-cudrania-tricuspidata-shows-antineuroinflammatory-effects-via-nf-%C3%AE%C2%BAb-and-mapk-pathways-in-lps-stimulated-bv2-and-primary-rat-microglial-cells
#16
Dong-Cheol Kim, Tran Hong Quang, Hyuncheol Oh, Youn-Chul Kim
Excessive microglial stimulation has been recognized in several neurodegenerative diseases, including Parkinson's disease (PD), Alzheimer's disease (AD), amyotropic lateral sclerosis (ALS), HIV-associated dementia (HAD), multiple sclerosis (MS), and stroke. When microglia are stimulated, they produce proinflammatory mediators and cytokines, including nitric oxide (NO) derived from inducible NO synthase (iNOS), prostaglandin E2 (PGE₂) derived from cyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-12 (IL-12), and interleukin-6 (IL-6)...
December 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29205357/hexokinase-2-dependent-hyperglycolysis-driving-microglial-activation-contributes-to-ischemic-brain-injury
#17
Yuan Li, Bingzheng Lu, Longxiang Sheng, Zhu Zhu, Hongjiaqi Sun, Yuwei Zhou, Yang Yang, Dongdong Xue, Wenli Chen, Xuyan Tian, Yun Du, Min Yan, Wenbo Zhu, Fan Xing, Kai Li, Suizhen Lin, Pengxin Qiu, Xingwen Su, Yijun Huang, Guangmei Yan, Wei Yin
Hyperglycolysis, observed within the penumbra zone during brain ischemia, was shown to be detrimental for tissue survival due to lactate accumulation and reactive oxygen species (ROS) overproduction in clinical and experimental settings. Recently, mounting evidence suggests that glycolytic reprogramming and induced metabolic enzymes can fuel the activation of peripheral immune cells. However, the possible roles and details regarding hyperglycolysis in neuroinflammation during ischemia are relatively poorly understood...
December 5, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29205169/potential-for-thermal-damage-to-the-blood-brain-barrier-during-craniotomy-procedure-implications-for-intracortical-recording-microelectrodes
#18
Andrew Shoffstall, Jennifer Paiz, David Miller, Griffin Rial, Mitchell Willis, Dhariyat Menendez, Stephen Hostler, Jeffrey R Capadona
Our objective was to determine how readily blood-brain barrier (BBB) disruption occurred as a result of bone drilling during a craniotomy to implant microelectrodes in rat cortex. While the phenomenon of heat production during bone-drilling is well-known, practices to evade damage to the underlying brain tissue are inconsistently practiced and reported in the literature. Approach: We conducted a review of intracortical microelectrode literature to summarize typical approaches to mitigate drill heating during rodent craniotomies...
December 5, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29203847/reconceptualization-of-translocator-protein-as-a-biomarker-of-neuroinflammation-in-psychiatry
#19
T Notter, J M Coughlin, A Sawa, U Meyer
A great deal of interest in psychiatric research is currently centered upon the pathogenic role of inflammatory processes. Positron emission tomography (PET) using radiolabeled ligands selective for the 18 kDa translocator protein (TSPO) has become the most widely used technique to assess putative neuroimmune abnormalities in vivo. Originally used to detect discrete neurotoxic damages, TSPO has generally turned into a biomarker of 'neuroinflammation' or 'microglial activation'. Psychiatric research has mostly accepted these denotations of TSPO, even if they may be inadequate and misleading under many pathological conditions...
December 5, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29203398/metyrapone-prevents-acute-glucose-hypermetabolism-and-short-term-brain-damage-induced-by-intrahippocampal-administration-of-4-aminopyridine-in-rats
#20
Luis García-García, Rubén Fernández de la Rosa, Mercedes Delgado, Ágata Silván, Pablo Bascuñana, Jens P Bankstahl, Francisca Gomez, Miguel A Pozo
Intracerebral administration of the potassium channel blocker 4-aminopyridine (4-AP) triggers neuronal depolarization and intense acute seizure activity followed by neuronal damage. We have recently shown that, in the lithium-pilocarpine rat model of status epilepticus, a single administration of metyrapone, an inhibitor of the 11β-hydroxylase enzyme, had protective properties of preventive nature against signs of brain damage and neuroinflammation. Herein, our aim was to investigate to which extent, pretreatment with metyrapone (150 mg/kg, i...
December 1, 2017: Neurochemistry International
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