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Alzheimer's disease, anti-oxidant, anti-inflammatory

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https://www.readbyqxmd.com/read/28326017/adiponectin-regulates-the-polarization-and-function-of-microglia-via-ppar-%C3%AE-signaling-under-amyloid-%C3%AE-toxicity
#1
Juhyun Song, Seong-Min Choi, Byeong C Kim
Alzheimer's disease (AD), characterized by the abnormal accumulation of amyloid beta (Aβ), is gradually increasing globally. Given that AD is considered a neuroinflammatory disease, recent studies have focused on the cellular mechanisms in brain inflammatory conditions that underlie AD neuropathology. Microglia are macrophage cells in the central nervous system (CNS) that are activated in response to Aβ condition. The function of microglia contributes to the neuroinflammation in AD brain, suggesting that microglia regulate the production of inflammatory mediators and contribute to the regeneration of damaged tissues...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28322157/diabetes-related-neurological-implications-and-pharmacogenomics
#2
Rojas Carranza Camilo Andrés, Bustos Cruz Rosa Helena, Pino Pinzón Carmen Juliana, Ariza Marquez Yeimy Viviana, Gómez Bello Rosa Margarita, Cañadas Garre Marisa
Diabetes mellitus (DM) is the most commonly occurring cause of neuropathy around the world and is beginning to grow in countries where there is a risk of obesity. DM Type II, (T2DM) is a common age-related disease and is a major health concern, particularly in developed countries in Europe where the population is aging. T2DM is a chronic disease which is characterised by hyperglycemia, hyperinsulinemia and insulin resistance, together with the body's inability to use glucose as energy. Such metabolic disorder produces a chronic inflammatory state, as well as changes in lipid metabolism leading to hypertriglyceridemia, thereby producing chronic deterioration of the organs and premature morbidity and mortality...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28320516/l-f001-a-novel-multifunctional-rock-inhibitor-suppresses-neuroinflammation-in-vitro-and-in-vivo-involvement-of-nf-%C3%AE%C2%BAb-inhibition-and-nrf2-pathway-activation
#3
Jingkao Chen, Wei Yin, Yalin Tu, Shengnan Wang, Xiaohong Yang, Qiuhe Chen, Xiao Zhang, Yifan Han, Rongbiao Pi
Microglia and astrocytes are largely responsible for inflammatory injury in the brain of Alzheimer's disease (AD). Increasing evidence has indicated that Rho kinase (ROCK) plays an important role in the regulation of neuroinflammation. Previously, we synthesized a new chemical entity L-F001 and proved its potential inhibitory effects on ROCK and oxidative stress. Here, we investigated the anti-inflammatory effects and the molecular mechanisms of L-F001 in vitro and in vivo. L-F001 remarkably suppressed lipopolysaccharides (LPS)-elevated expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) as well as LPS-induced production of nitric oxide (NO), reactive oxygen species, interleukin-6 (IL-6) and tumor necreactive oxygen speciesis factor-α (TNF-α) in microglial BV-2 cells and in cultured astrocytes...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28292183/n-docosahexaenoyl-dopamine-an-endocannabinoid-like-conjugate-of-dopamine-and-the-n-3-fatty-acid-docosahexaenoic-acid-attenuates-lipopolysaccharide-induced-activation-of-microglia-and-macrophages-via-cox-2
#4
Ya Wang, Pierluigi Plastina, Jean-Paul Vincken, Renate Jansen, Michiel Balvers, Jean Paul Ten Klooster, Harry Gruppen, Renger Witkamp, Jocelijn Meijerink
Several studies indicate that the n-3 long-chain polyunsaturated fatty acid docosahexaenoic acid (DHA) contributes to an attenuated inflammatory status in the development of neurodegenerative disorders, such as Alzheimer's and Parkinson's disease. To explain these effects, different mechanisms are being proposed, including those involving endocannabinoids and related signaling molecules. Many of these compounds belong to the fatty acid amides, conjugates of fatty acids with biogenic amines. Conjugates of DHA with ethanolamine or serotonin have previously been shown to possess anti-inflammatory and potentially neuroprotective properties...
March 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28284330/inhibition-of-ages-rage-rho-rock-pathway-suppresses-non-specific-neuroinflammation-by-regulating-bv2-microglial-m1-m2-polarization-through-the-nf-%C3%AE%C2%BAb-pathway
#5
Jingkao Chen, Zhaowei Sun, Minghua Jin, Yalin Tu, Shengnan Wang, Xiaohong Yang, Qiuhe Chen, Xiao Zhang, Yifan Han, Rongbiao Pi
The microglia-mediated neuroinflammation plays an important role in the pathogenesis of Alzheimer's disease (AD). Advanced glycation end products (AGEs)/receptor for advanced glycation end products (RAGE) or Rho/Rho kinase (ROCK) are both involved in the development of non-specific inflammation. However, there are few reports about their effects on neuroinflammation. Here, we explored the mechanism of AGEs/RAGE/Rho/ROCK pathway underlying the non-specific inflammation and microglial polarization in BV2 cells...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28282917/potential-neuroprotective-effects-of-adiponectin-in-alzheimer-s-disease
#6
REVIEW
Roy Chun-Laam Ng, Koon-Ho Chan
The adipocyte-secreted protein adiponectin (APN) has several protective functions in the peripheral tissues including insulin sensitizing, anti-inflammatory and anti-oxidative effects that may benefit neurodegenerative diseases such as Alzheimer's disease (AD). In addition, dysregulation of cerebral insulin sensitivities and signaling activities have been implicated in AD. Emerging insights into the mechanistic roles of adiponectin and AD highlight the potential therapeutic effects for AD through insulin signaling...
March 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28282613/design-synthesis-and-evaluation-of-novel-feruloyl-donepezil-hybrids-as-potential-multitarget-drugs-for-the-treatment-of-alzheimer-s-disease
#7
Kris Simone T Dias, Cynthia T de Paula, Thiago Dos Santos, Isis N O Souza, Marina S Boni, Marcos J R Guimarães, Fernanda M R da Silva, Newton G Castro, Gilda A Neves, Clarice C Veloso, Márcio M Coelho, Ivo Souza F de Melo, Fabiana C V Giusti, Alexandre Giusti-Paiva, Marcelo L da Silva, Laurent E Dardenne, Isabella A Guedes, Letizia Pruccoli, Fabiana Morroni, Andrea Tarozzi, Claudio Viegas
A novel series of feruloyl-donepezil hybrid compounds were designed, synthesized and evaluated as multitarget drug candidates for the treatment of Alzheimer's Disease (AD). In vitro results revealed potent acetylcholinesterase (AChE) inhibitory activity for some of these compounds and all of them showed moderate antioxidant properties. Compounds 12a, 12b and 12c were the most potent AChE inhibitors, highlighting 12a with IC50 = 0.46 μM. In addition, these three most promising compounds exhibited significant in vivo anti-inflammatory activity in the mice paw edema, pleurisy and formalin-induced hyperalgesy models, in vitro metal chelator activity for Cu(2+) and Fe(2+), and neuroprotection of human neuronal cells against oxidative damage...
April 21, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28266714/hepcidin-attenuates-amyloid-beta-induced-inflammatory-and-pro-oxidant-responses-in-astrocytes-and-microglia
#8
Pamela J Urrutia, Etienne C Hirsch, Christian González-Billault, Marco T Núñez
Alzheimer disease (AD) is characterized by extracellular senile plaques, intracellular neurofibrillary tangles, and neuronal death. Aggregated amyloid-β (Aβ) induces inflammation and oxidative stress, which have pivotal roles in the pathogenesis of AD. Hepcidin is a key regulator of systemic iron homeostasis. Recently, an anti-inflammatory response to hepcidin was reported in macrophages. Under the hypothesis that hepcidin mediates anti-inflammatory response in the brain, in this study, we evaluated the putative anti-inflammatory role of hepcidin on Aβ-activated astrocytes and microglia...
March 7, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28217094/in-vivo-evidence-for-therapeutic-properties-of-cannabidiol-cbd-for-alzheimer-s-disease
#9
REVIEW
Georgia Watt, Tim Karl
Alzheimer's disease (AD) is a debilitating neurodegenerative disease that is affecting an increasing number of people. It is characterized by the accumulation of amyloid-β and tau hyperphosphorylation as well as neuroinflammation and oxidative stress. Current AD treatments do not stop or reverse the disease progression, highlighting the need for new, more effective therapeutics. Cannabidiol (CBD) is a non-psychoactive phytocannabinoid that has demonstrated neuroprotective, anti-inflammatory and antioxidant properties in vitro...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28188785/sortilin-related-receptor-1-interacts-with-amyloid-precursor-protein-and-is-activated-by-6-shogaol-leading-to-inhibition-of-the-amyloidogenic-pathway
#10
Ji-Young Na, Kibbeum Song, Ju-Woon Lee, Sokho Kim, Jungkee Kwon
Sortilin-related receptor 1 (SORL1) is a neuronal sorting protein that reduces amyloid precursor protein (APP) trafficking to secretases that generate amyloid beta (Aβ). Although 6-shogaol, a constituent of ginger, has been reported to have anti-inflammatory and anti-oxidant effects on neuronal cells, research regarding the activation of SORL1 has not yet been reported. Here, we aimed to investigate whether 6-shogaol contributes to the increases in SORL1 that are related to Alzheimer's disease (AD). To clarify the effect of 6-shogaol as a possible activator of SORL1, we used SORL1 siRNA as a blockade of SORL1 in hippocampal neuronal cells (HT22)...
February 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28174611/pterostilbene-ameliorates-intracerebroventricular-streptozotocin-induced-memory-decline-in-rats
#11
Bhagyashree Naik, Abhijit Nirwane, Anuradha Majumdar
There is strong evidence that mitochondrial dysfunction mediated oxidative stress results in aging and energy metabolism deficits thus playing a prime role in pathogenesis of Alzheimer's disease, neuronal death and cognitive dysfunction. Evidences accrued in empirical studies suggest the antioxidant, anticancer and anti-inflammatory activities of the phytochemical pterostilbene (PTS). PTS also exhibits favourable pharmacokinetic attributes compared to other stilbenes. Hence, in the present study, we explored the neuroprotective role of PTS in ameliorating the intracerebroventricular administered streptozotocin (STZ) induced memory decline in rats...
February 2017: Cognitive Neurodynamics
https://www.readbyqxmd.com/read/28168765/prediction-of-anti-alzheimer-s-activity-of-flavonoids-targeting-acetylcholinesterase-in-silico
#12
Subrata Das, Monjur A Laskar, Satyajit D Sarker, Manabendra D Choudhury, Prakash Roy Choudhury, Abhijit Mitra, Shajarahtunnur Jamil, Siti Mariam A Lathiff, Siti Awanis Abdullah, Norazah Basar, Lutfun Nahar, Anupam D Talukdar
INTRODUCTION: Prenylated and pyrano-flavonoids of the genus Artocarpus J. R. Forster & G. Forster are well known for their acetylcholinesterase (AChE) inhibitory, anti-cholinergic, anti-inflammatory, anti-microbial, anti-oxidant, anti-proliferative and tyrosinase inhibitory activities. Some of these compounds have also been shown to be effective against Alzheimer's disease. OBJECTIVE: The aim of the in silico study was to establish protocols to predict the most effective flavonoid from prenylated and pyrano-flavonoid classes for AChE inhibition linking to the potential treatment of Alzheimer's disease...
February 7, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28164768/protective-effect-of-aspirin-against-oligomeric-a%C3%AE-42-induced-mitochondrial-alterations-and-neurotoxicity-in-differentiated-ec-p19-neuronal-cells
#13
Hamendra Singh Parmar, Zbynek Houdek, Martin Pesta, Vaclava Cerna, Pavel Dvorak, Jiri Hatina
Amyloid-beta (Aβ) induced mitochondrial dysfunction is one of the major causes of neuronal toxicity in Alzheimer's disease. Many recent reports suggest involvement of mitochondrial alterations through intracellular accumulation of oligomeric Aβ. These mitochondrial alterations include increased reactive oxygen species (ROS), mt-DNA depletion, decreased oxidative phosphorylation and ATP production, membrane depolarization, reduced number of mitochondria etc. These all defects cumulatively caused neural toxicity and alterations in cellular energy homeostasis...
February 2, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28160212/phthalides-distribution-in-nature-chemical-reactivity-synthesis-and-biological-activity
#14
Alejandra León, Mayela Del-Ángel, José Luis Ávila, Guillermo Delgado
Phthalides are a relatively small group of natural compounds confined to several plant families and some genera of fungi and liverworts. They are divided into two structural groups, the monomeric and dimeric phthalides, and known mainly as bioactive constituents of different plant species used traditionally for medicinal purposes in Asia, Europe, and North America.The first reports on the chemistry of phthalides appeared at the end of the nineteenth century, in which they were identified as the odor constituents of the essential oil of celery (Apium graveolens) by Ciamician and Silber (1897)...
2017: Progress in the Chemistry of Organic Natural Products
https://www.readbyqxmd.com/read/28159472/metformin-activation-of-ampk-suppresses-age-induced-inflammatory-response-in-hnscs
#15
Ming-Min Chung, Christopher J Nicol, Yi-Chuan Cheng, Kuan-Hung Lin, Yen-Lin Chen, Dee Pei, Chien-Hung Lin, Yi-Nuo Shih, Chia-Hui Yen, Shiang-Jiuun Chen, Rong-Nan Huang, Ming-Chang Chiang
A growing body of evidence suggests type 2 diabetes mellitus (T2DM) is linked to neurodegenerative diseases such as Alzheimer's disease (AD). Although the precise mechanisms remain unclear, T2DM may exacerbate neurodegenerative processes. AMP-activated protein kinase (AMPK) signaling is an evolutionary preserved pathway that is important during homeostatic energy biogenesis responses at both the cellular and whole-body levels. Metformin, a ubiquitously prescribed anti-diabetic drug, exerts its effects by AMPK activation...
March 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28157094/treadmill-exercise-exerts-neuroprotection-and-regulates-microglial-polarization-and-oxidative-stress-in-a-streptozotocin-induced-rat-model-of-sporadic-alzheimer-s-disease
#16
Yujiao Lu, Yan Dong, Donovan Tucker, Ruimin Wang, Mohammad Ejaz Ahmed, Darrell Brann, Quanguang Zhang
Recent work has suggested that exercise may be beneficial in preventing or ameliorating symptoms of several neurological disorders, although the mechanism is not entirely understood. The current study was designed to examine the potential beneficial effect of treadmill exercise upon cognitive function in a streptozotocin (STZ)-induced rat model of Alzheimer's disease (AD). Animals underwent treadmill exercise (30 min/day, 5 days/week) for 4 weeks after bilateral STZ intracerebroventricular injection (2.4 mg/kg)...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28133531/in-vitro-assesment-of-anti-inflammatory-activities-of-coumarin-and-indonesian-cassia-extract-in-raw264-7-murine-macrophage-cell-line
#17
Ni Made Dwi Sandhiutami, Moordiani Moordiani, Dian Ratih Laksmitawati, Nurul Fauziah, Maesaroh Maesaroh, Wahyu Widowati
OBJECTIVES: Inflammation is an immune response toward injuries. Although inflammation is healing response, but in some condition it will lead to chronic disease such as rheumatoid arthritis, inflammatory bowel disease, atherosclerosis, Alzheimer's and various cancer. Indonesian cassia (Cinnamomum burmannil C. Nees & T. Ness) known to contain coumarin, is widely used for alternative medicine especially as an anti-inflammatory. This study was conducted to determine the anti-inflammatory properties of coumarin and Indonesian cassia extract (ICE) in LPS-induced RAW264...
January 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28132781/inhibitory-effect-of-punicalagin-on-lipopolysaccharide-induced-neuroinflammation-oxidative-stress-and-memory-impairment-via-inhibition-of-nuclear-factor-kappab
#18
Young Eun Kim, Chul Ju Hwang, Hee Pom Lee, Chun Sik Kim, Dong Ju Son, Young Wan Ham, Mats Hellström, Sang-Bae Han, Hee Sik Kim, Eun Kyung Park, Jin Tae Hong
Neuroinflammation is significant in the pathogenesis and development of Alzheimer's disease (AD). Previously, we showed lipopolysaccharide (LPS)-induced neuroinflammation caused memory impairment. We investigated the possible preventive effects of punicalagin (PUN), a component of pomegranate, on memory deficiency caused by LPS, along with the fundamental mechanisms. LPS-treated cultured astrocytes and microglial BV-2 cells were investigated for anti-neuroinflammatory effects of PUN. PUN (1.5 mg/kg) ameliorates LPS (250 μg/kg daily 7 times)-induced memory impairment as well as prevents the LPS-induced expression of inflammatory proteins...
January 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28100077/effects-of-m2000-d-mannuronic-acid-on-learning-memory-retrieval-and-associated-determinants-in-a-rat-model-of-alzheimer-s-disease
#19
Somayeh Athari Nik Azm, Mohammadreza Vafa, Mohammad Sharifzadeh, Majid Safa, Anis Barati, Abbas Mirshafiey
The d-mannuronic acid (M2000) is a novel nonsteroidal anti-inflammatory drug that has immunosuppressive effects together with antioxidant property. M2000 has shown a notable efficacy in experimental models of multiple sclerosis, rheumatoid arthritis, and nephrotic syndrome. In this work, the effect of M2000 on the treatment of Alzheimer's disease (AD) was performed by Morris water maze experiment, and the immunological assessments were carried out by Western blot, apoptosis (procaspase-3, Bax/Bcl2, P53), enzymatic (superoxide dismutase [SOD]), and nonenzymatic oxidative stress (malondialdehyde [MDA]) tests...
February 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28060896/isobavachalcone-attenuates-mptp-induced-parkinson-s-disease-in-mice-by-inhibition-of-microglial-activation-through-nf-%C3%AE%C2%BAb-pathway
#20
Haoran Jing, Shaoxia Wang, Min Wang, Wenliang Fu, Chao Zhang, Donggang Xu
Parkinson's disease (PD) is a complex multi-system and age-related neurodegenerative disorder. The intervention targeting neuroinflammation in PD patients is one effective strategy to slow down or inhibit disease progression. Microglia-mediated inflammatory response plays an important role in Parkinson's, Alzheimer's and other cerebral diseases. Isobavachalcone is a main component of Chinese herb medicine Psoralea corylifolia, which function includes immunoregulation, anti-oxidation and the regulation of β-amyloid (Aβ42) deposited in hippocampus in Alzheimer's patients...
2017: PloS One
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