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Neuroinflammation

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https://www.readbyqxmd.com/read/28215000/angiotensin-ii-receptor-blockers-attenuate-lipopolysaccharide-induced-memory-impairment-by-modulation-of-nf-%C3%AE%C2%BAb-mediated-bdnf-creb-expression-and-apoptosis-in-spontaneously-hypertensive-rats
#1
Ruby Goel, Shahnawaz Ali Bhat, Kashif Hanif, Chandishwar Nath, Rakesh Shukla
Clinical studies demonstrated a positive correlation between hypertension and cognitive decline. Beneficial effects of angiotensin II receptor blockers on cognitive functions have also been reported earlier; however, its role in chronic neuroinflammation-induced memory impairment in the hypertensive state is not well understood. Therefore, in the present study, we investigated the effect of angiotensin II receptor blockers on memory impairment induced by lipopolysaccharide (LPS) in spontaneously hypertensive rats (SHRs)...
February 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28214555/identification-of-a-fatty-acid-binding-protein4-ucp2-axis-regulating-microglial-mediated-neuroinflammation
#2
Cayla M Duffy, Hongliang Xu, Joshua P Nixon, David A Bernlohr, Tammy A Butterick
Hypothalamic inflammation contributes to metabolic dysregulation and the onset of obesity. Dietary saturated fats activate microglia via a nuclear factor-kappa B (NFκB) mediated pathway to release pro-inflammatory cytokines resulting in dysfunction or death of surrounding neurons. Fatty acid binding proteins (FABPs) are lipid chaperones regulating metabolic and inflammatory pathways in response to fatty acids. Loss of FABP4 in peripheral macrophages via either molecular or pharmacologic mechanisms results in reduced obesity-induced inflammation via a UCP2-redox based mechanism...
February 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28214521/neuroprotective-effect-of-salvianolic-acid-b-against-cerebral-ischemic-injury-in-rats-via-the-cd40-nf-%C3%AE%C2%BAb-pathway-associated-with-suppression-of-platelets-activation-and-neuroinflammation
#3
Shixin Xu, Aiqin Zhong, Huining Ma, Dan Li, Yue Hu, Yingzhi Xu, Junping Zhang
Neuroinflammation plays a critical role in the pathogenesis of ischemia/reperfusion (I/R) injury. Activated platelets are increasingly regarded as initiators and/or amplifiers of inflammatory processes in cerebral I/R injury. Salvianolic acid B (SAB) is the most abundant bioactive compound of Salviae miltiorrhizae, a well-known Chinese herb used to promote blood circulation and eliminating blood stasis. S. miltiorrhizae has been used clinically in Asia for the treatment of ischemic cerebrovascular diseases...
February 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28213636/decrease-of-glial-cell-derived-neurotrophic-factor-contributes-to-anesthesia-and-surgery-induced-learning-and-memory-dysfunction-in-neonatal-rats
#4
Lingli Gui, Xi Lei, Zhiyi Zuo
: Long duration of anesthesia may induce toxicity in the developing brain. However, little is known about the effects of the combination of surgery and anesthesia on the developing brain. The mechanisms for the effects are not clear. To determine these effects, postnatal day 7 male and female Sprague-Dawley rats were exposed to 3% sevoflurane for 2 h with or without right common carotid exposure. Pyrrolidine dithiocarbamate (PDTC), an anti-inflammatory agent, was given 30 min before and 6 h after the carotid exposure...
February 17, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28212619/brain-and-liver-pathology-amyloid-deposition-and-interferon-responses-among-older-hiv-positive-patients-in-the-late-haart-era
#5
Isaac H Solomon, Umberto De Girolami, Sukrutha Chettimada, Vikas Misra, Elyse J Singer, Dana Gabuzda
BACKGROUND: HIV+ patients on highly active antiretroviral therapy (HAART) with suppressed viral loads have a low incidence of HIV-associated dementia, but increased prevalence of milder forms of HIV-associated neurocognitive disorders (HAND). These milder forms of HAND are often associated with minimal histological abnormalities, and their pathophysiology is unclear. Comorbidities, altered amyloid metabolism, accelerated brain aging, and activated interferon responses are suspected to play a role in HAND pathogenesis in HAART-treated persons...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28212525/ablation-of-ferroptosis-regulator-glutathione-peroxidase-4-in-forebrain-neurons-promotes-cognitive-impairment-and-neurodegeneration
#6
William Sealy Hambright, Rene Solano Fonseca, Liuji Chen, Ren Na, Qitao Ran
Synaptic loss and neuron death are the underlying cause of neurodegenerative diseases such as Alzheimer's disease (AD); however, the modalities of cell death in those diseases remain unclear. Ferroptosis, a newly identified oxidative cell death mechanism triggered by massive lipid peroxidation, is implicated in the degeneration of neurons populations such as spinal motor neurons and midbrain neurons. Here, we investigated whether neurons in forebrain regions (cerebral cortex and hippocampus) that are severely afflicted in AD patients might be vulnerable to ferroptosis...
February 1, 2017: Redox Biology
https://www.readbyqxmd.com/read/28212183/cxcl12-cxcr4-signaling-contributes-to-the-pathogenesis-of-opioid-tolerance-a-translational-study
#7
Chih-Peng Lin, Kai-Hsiang Kang, Huang-Ju Tu, Ming-Yueh Wu, Tzu-Hung Lin, Houng-Chi Liou, Wei-Zen Sun, Wen-Mei Fu
BACKGROUND: Long-term opioid therapy for chronic pain may lead to analgesic tolerance, especially when administered intrathecally, thus preventing adequate pain relief. Discovering drug targets to treat opioid tolerance using a mechanism-based approach targeting opioid-induced neuroinflammation provides new therapeutic opportunities. In this study, we provide translational evidence that CXCL12/CXCR4 signaling contributes to the pathogenesis of opioid tolerance. METHODS: The CXCL12 levels in the cerebrospinal fluid of opioid-tolerant patients were compared with those of opioid-naive subjects...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28210222/icariside-ii-a-broad-spectrum-anti-cancer-agent-reverses-beta-amyloid-induced-cognitive-impairment-through-reducing-inflammation-and-apoptosis-in-rats
#8
Yuanyuan Deng, Long Long, Keke Wang, Jiayin Zhou, Lingrong Zeng, Lianzi He, Qihai Gong
Beta-amyloid (Aβ) deposition, associated neuronal apoptosis and neuroinflammation are considered as the important factors which lead to cognitive deficits in Alzheimer's disease (AD). Icariside II (ICS II), an active flavonoid compound derived from Epimedium brevicornum Maxim, has been extensively used to treat erectile dysfunction, osteoporosis and dementia in traditional Chinese medicine. Recently, ICS II attracts great interest due to its broad-spectrum anti-cancer property. ICS II shows an anti-inflammatory potential both in cancer treatment and cerebral ischemia-reperfusion...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28210215/tryptanthrin-suppresses-the-activation-of-the-lps-treated-bv2-microglial-cell-line-via-nrf2-ho-1-antioxidant-signaling
#9
Young-Won Kwon, So Yeong Cheon, Sung Yun Park, Juhyun Song, Ju-Hee Lee
Microglia are the resident macrophages in the central nervous system (CNS) and play essential roles in neuronal homeostasis and neuroinflammatory pathologies. Recently, microglia have been shown to contribute decisively to neuropathologic processes after ischemic stroke. Furthermore, natural compounds have been reported to attenuate inflammation and pathologies associated with neuroinflammation. Tryptanthrin (indolo[2,1-b]quinazoline-6,12-dione) is a phytoalkaloid with known anti-inflammatory effects in cells...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28210207/cannabinoid-receptor-2-signaling-in-neurodegenerative-disorders-from-pathogenesis-to-a-promising-therapeutic-target
#10
REVIEW
Tommaso Cassano, Silvio Calcagnini, Lorenzo Pace, Federico De Marco, Adele Romano, Silvana Gaetani
As a consequence of an increasingly aging population, the number of people affected by neurodegenerative disorders, such as Alzheimer's disease, Parkinson's disease and Huntington's disease, is rapidly increasing. Although the etiology of these diseases has not been completely defined, common molecular mechanisms including neuroinflammation, excitotoxicity and mitochondrial dysfunction have been confirmed and can be targeted therapeutically. Moreover, recent studies have shown that endogenous cannabinoid signaling plays a number of modulatory roles throughout the central nervous system (CNS), including the neuroinflammation and neurogenesis...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28209182/mesenchymal-stem-cells-alleviate-japanese-encephalitis-virus-induced-neuroinflammation-and-mortality
#11
Peiyu Bian, Chuantao Ye, Xuyang Zheng, Jing Yang, Wei Ye, Yuan Wang, Yun Zhou, Hongwei Ma, Peijun Han, Hai Zhang, Ying Zhang, Fanglin Zhang, Yingfeng Lei, Zhansheng Jia
BACKGROUND: Japanese encephalitis virus (JEV) is the leading cause of viral encephalitis in Asia. Japanese encephalitis (JE) caused by JEV is characterized by extensive inflammatory cytokine secretion, microglia activation, blood-brain barrier (BBB) breakdown, and neuronal death, all of which contribute to the vicious cycle of inflammatory damage. There are currently no effective treatments for JE. Mesenchymal stem cells (MSCs) have been demonstrated to have a therapeutic effect on many central nervous system (CNS) diseases by regulating inflammation and other mechanisms...
February 16, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28208679/vanillin-protects-dopaminergic-neurons-against-inflammation-mediated-cell-death-by-inhibiting-erk1-2-p38-and-the-nf-%C3%AE%C2%BAb-signaling-pathway
#12
Xuan Yan, Dian-Feng Liu, Xiang-Yang Zhang, Dong Liu, Shi-Yao Xu, Guang-Xin Chen, Bing-Xu Huang, Wen-Zhi Ren, Wei Wang, Shou-Peng Fu, Ju-Xiong Liu
Neuroinflammation plays a very important role in the pathogenesis of Parkinson's disease (PD). After activation, microglia produce pro-inflammatory mediators that damage surrounding neurons. Consequently, the inhibition of microglial activation might represent a new therapeutic approach of PD. Vanillin has been shown to protect dopaminergic neurons, but the mechanism is still unclear. Herein, we further study the underlying mechanisms in lipopolysaccharide (LPS)-induced PD models. In vivo, we firstly established rat models of PD by unilateral injection of LPS into substantia nigra (SN), and then examined the role of vanillin in motor dysfunction, microglial activation and degeneration of dopaminergic neurons...
February 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28204864/high-bioavailability-curcumin-an-anti-inflammatory-and-neurosupportive-bioactive-nutrient-for-neurodegenerative-diseases-characterized-by-chronic-neuroinflammation
#13
REVIEW
Faheem Ullah, Andy Liang, Alejandra Rangel, Erika Gyengesi, Garry Niedermayer, Gerald Münch
Neuroinflammation is a pathophysiological process present in a number of neurodegenerative disorders, such as Alzheimer's disease, Huntington's disease, Parkinson's disease, stroke, traumatic brain injury including chronic traumatic encephalopathy and other age-related CNS disorders. Although there is still much debate about the initial trigger for some of these neurodegenerative disorders, during the progression of disease, broad range anti-inflammatory drugs including cytokine suppressive anti-inflammatory drugs (CSAIDs) might be promising therapeutic options to limit neuroinflammation and improve the clinical outcome...
February 15, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28203487/peroxisome-proliferator-activated-receptor-%C3%AE-agonists-potential-therapeutics-for-neuropathology-associated-with-fetal-alcohol-spectrum-disorders
#14
Paul D Drew, Cynthia J M Kane
Fetal alcohol spectrum disorders (FASD) result from fetal exposure to alcohol during pregnancy. These disorders present a variety of sequelae including involvement of the central nervous system (CNS) with lasting impact on cognitive function and behavior. FASD occur at an alarming rate and have significant personal and societal impact. There are currently no effective treatments for FASD. Recent studies demonstrate that ethanol induces potent neuroinflammation in many regions of the developing brain. Furthermore, anti-inflammatory agents such as peroxisome proliferator-activated receptor (PPAR)-γ agonists suppress ethanol-induced neuroinflammation and neurodegeneration...
December 2016: Journal of Clinical & Cellular Immunology
https://www.readbyqxmd.com/read/28203480/a-novel-immunosuppressor-5r-5-hydroxytriptolide-alleviates-movement-disorder-and-neuroinflammation-in-a-6-ohda-hemiparkinsonian-rat-model
#15
Ruijun Su, Min Sun, Wei Wang, Jianliang Zhang, Li Zhang, Junli Zhen, Yanjing Qian, Yan Zheng, Xiaomin Wang
Parkinson's disease (PD) is one of the most common age-related neurodegenerative diseases. Promising therapies for PD still need to be explored. Immune dysfunction has been found to be involved in PD pathogenesis. Here, a novel immunosuppressor, (5R)-5-hydroxytriptolide (LLDT8), was used to treat 6-hydroxydopamine (6-OHDA)-induced hemiparkinson rats. We found that oral administration of LLDT8 significantly alleviated apomorphine-induced rotations at a dose of 125 µg/kg, and improved performance in cylinder and rotarod tests at a lower dose of 31...
February 2017: Aging and Disease
https://www.readbyqxmd.com/read/28203046/neuroinflammation-as-fuel-for-axonal-regeneration-in-the-injured-vertebrate-central-nervous-system
#16
REVIEW
Ilse Bollaerts, Jessie Van Houcke, Lien Andries, Lies De Groef, Lieve Moons
Damage to the central nervous system (CNS) is one of the leading causes of morbidity and mortality in elderly, as repair after lesions or neurodegenerative disease usually fails because of the limited capacity of CNS regeneration. The causes underlying this limited regenerative potential are multifactorial, but one critical aspect is neuroinflammation. Although classically considered as harmful, it is now becoming increasingly clear that inflammation can also promote regeneration, if the appropriate context is provided...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28202547/post-translational-activation-of-glutamate-cysteine-ligase-with-dimercaprol-a-novel-mechanism-of-inhibiting-neuroinflammation-in-vitro
#17
Pallavi B McElroy, Ashwini Sri Hari, Brian J Day, Manisha Patel
Neuroinflammation and oxidative stress are hallmarks of various neurological diseases. However, whether and how the redox processes control neuroinflammation is incompletely understood. We hypothesized that increasing cellular glutathione (GSH) levels would inhibit neuroinflammation. A series of thiol compounds were identified to elevate cellular GSH levels by a novel approach i.e. post-translational activation of glutamate cysteine ligase (GCL), the rate-limiting enzyme in GSH biosynthesis. These small thiolcontaining compounds were examined for their ability to increase intracellular GSH levels in a murine microglial cell line (BV2), of which dimercaprol [2,3-dimercapto-1-propanol (DMP)] was found to be the most effective compound...
February 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28202084/aprepitant-limits-in-vivo-neuroinflammatory-responses-in-a-rhesus-model-of-lyme-neuroborreliosis
#18
Alejandra N Martinez, Amanda R Burmeister, Geeta Ramesh, Lara Doyle-Meyers, Ian Marriott, Mario T Philipp
BACKGROUND: Substance P (SP) is produced at high levels in the central nervous system (CNS), and its target receptor, neurokinin 1 receptor (NK-1R), is expressed by glia and leukocytes. This tachykinin functions to exacerbate inflammatory responses at peripheral sites. Moreover, SP/NK-1R interactions have recently been associated with severe neuroinflammation and neuronal damage. We have previously demonstrated that NK-1R antagonists can limit neuroinflammatory damage in a mouse model of bacterial meningitis...
February 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28199982/n-acetyl-cysteine-attenuates-remifentanil-induced-postoperative-hyperalgesia-via-inhibiting-matrix-metalloproteinase-9-in-dorsal-root-ganglia
#19
Yue Liu, Yuan Ni, Wei Zhang, Yu-E Sun, Zhengliang Ma, Xiaoping Gu
Treatment of remifentanil-induced postoperative hyperalgesia (RIH) remains a clinical challenge because the mechanisms are not fully understood. Matrix metalloproteinase-9 (MMP-9) is a key component in neuroinflammation because of its facilitation of pro-inflammatory cytokine maturation. Therefore, inhibition of MMP-9 may represent a novel therapeutic approach to the treatment of RIH. Sprague-Dawley rats were randomly divided into three groups: Control, Incision and Remifentanil. A right plantar surgical incision was performed in Group Incision, and intraoperative remifentanil (0...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28199883/acetyl-l-carnitine-protects-dopaminergic-nigrostriatal-pathway-in-6-hydroxydopamine-induced-model-of-parkinson-s-disease-in-the-rat
#20
Siamak Afshin-Majd, Keyhan Bashiri, Zahra Kiasalari, Tourandokht Baluchnejadmojarad, Reza Sedaghat, Mehrdad Roghani
Parkinson's disease (PD) is a movement disorder and the second most common neurodegenerative disease worldwide in which nigrostriatal dopaminergic neurons within substantia nigra pars compacta (SNC) are lost, with clinical motor and non-motor symptoms including bradykinesia, resting tremor, rigidity, stooping posture and cognitive deficits. This study was undertaken to evaluate the neuroprotective potential of acetyl-l-carnitine (ALC) against unilateral striatal 6-hydroxydopamine (6-OHDA)-induced model of PD and to explore some involved mechanisms...
February 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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