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https://www.readbyqxmd.com/read/29052076/-e-2-methoxy-4-3-4-methoxyphenyl-prop-1-en-1-yl-phenol-ameliorates-lps-mediated-memory-impairment-by-inhibition-of-stat3-pathway
#1
Ji Yeon Choi, Chul Ju Hwang, Do Yeon Lee, Sun Mi Gu, Hee Pom Lee, Dong Young Choi, Ki Wan Oh, Sang-Bae Han, Jin Tae Hong
Alzheimer's disease (AD) is pathologically characterized by an excessive accumulation of amyloid-beta (Aβ) fibrils within the brain. We tested the anti-inflammatory and anti-amyloidogenic effects of (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) phenol (MMPP), a selective signal transducer and activator of transcription 3 (STAT3) inhibitor. We examined whether MMPP (5 mg/kg in drinking water for 1 month) prevents amyloidogenesis and cognitive impairment on AD model mice induced by intraperitoneal LPS (250 μg/kg daily 7 times) injections...
October 19, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29051850/functional-recovery-of-contused-spinal-cord-in-rat-with-the-injection-of-optimal-dosed-cerium-oxide-nanoparticles
#2
Jong-Wan Kim, Chinmaya Mahapatra, Jin-Young Hong, Min Soo Kim, Kam W Leong, Hae-Won Kim, Jung Keun Hyun
Spinal cord injury (SCI) produces excess reactive oxygen species (ROS) that can exacerbate secondary injury and lead to permanent functional impairment. Hypothesizing that cerium oxide nanoparticles (CONPs) as an effective ROS scavenger may offset this damaging effect, it is first demonstrated in vitro that CONPs suppressed inducible nitric oxide synthase (iNOS) generation and enhanced cell viability of hydrogen peroxide (H2O2)-insulted cortical neurons. Next, CONPs are administered at various does (50-4000 µg mL(-1)) to a contused spinal cord rat model and monitored the disease progression for up to eight weeks...
October 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29051087/triggering-receptor-expressed-on-myeloid-cells-2-trem2-dependent-microglial-activation-promotes-cisplatin-induced-peripheral-neuropathy-in-mice
#3
Lang-Yue Hu, Yang-Zhou, Wen-Qiang Cui, Xue-Ming Hu, Li-Xia Du, Wen-Li Mi, Yu-Xia Chu, Gen-Cheng Wu, Yan-Qing Wang, Qi-Liang Mao-Ying
Chemotherapy-induced peripheral neuropathy (CIPN) is a common adverse side effect of many antineoplastic agents. Patients treated with chemotherapy often report pain and paresthesias in a "glove-and-stocking" distribution. Diverse mechanisms contribute to the development and maintenance of CIPN. However, the role of spinal microglia in CIPN is not completely understood. In this study, cisplatin-treated mice displayed persistent mechanical allodynia, sensory deficits and decreased density of intraepidermal nerve fibers (IENFs)...
October 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29051000/pulsed-inhaled-nitric-oxide-improves-arterial-oxygenation-in-colic-horses-undergoing-abdominal-surgery
#4
Maja Wiklund, Izabella Granswed, Görel Nyman
OBJECTIVE: To evaluate the effect of pulsed inhaled nitric oxide (INO) on arterial oxygenation in horses during abdominal surgery. STUDY DESIGN: Prospective, randomized, clinical trial. ANIMALS: Thirty horses that underwent abdominal surgery at the University Animal Hospital in Uppsala, Sweden. METHODS: Anaesthesia was induced according to a standard protocol - romifidine, butorphanol, diazepam and ketamine and maintained with isoflurane in oxygen...
April 17, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29050767/cish-controls-bacterial-burden-early-after-infection-with-mycobacterium-tuberculosis-in-mice
#5
Berit Carow, Yu Gao, Graciela Terán, Xuexian O Yang, Chen Dong, Akihiko Yoshimura, Martin E Rottenberg
CISH gene has been associated with increased susceptibility to human tuberculosis. We found that cish(-/-) mice had higher M. tuberculosis load in spleens and lungs up to 2.5 weeks after infection but not later compared to controls. Cish mRNA levels were increased in lungs at early and late time points after M. tuberculosis infection. In relation, the titers of inos and tnf mRNA in lungs were reduced early after infection of cish(-/-) mice. The transfer of cish(-/-) and control T cells conferred rag1(-/-) mice similar protection to infection with M...
December 2017: Tuberculosis
https://www.readbyqxmd.com/read/29050435/immune-enhancing-activity-of-phosvitin-by-stimulating-the-production-of-pro-inflammatory-mediator
#6
J H Lee, S H Moon, H S Kim, E Park, D U Ahn, H D Paik
Egg yolk phosvitin is one of the most phosphorylated proteins in nature, and the extraordinarily high concentration of phosphate groups in its structure provides a strong metal-binding ability. Phosvitin is known to possess various functional activities, including metal-chelating, antioxidant, emulsifying, antimicrobial, and cytotoxic activities. However, little is known about the immune-enhancing activity of phosvitin. The objective of this study was to evaluate the immune-enhancing activity of phosvitin in murine RAW 264...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/29050341/geraniol-alleviates-lps-induced-acute-lung-injury-in-mice-via-inhibiting-inflammation-and-apoptosis
#7
Kangfeng Jiang, Tao Zhang, Nannan Yin, Xiaofei Ma, Gan Zhao, Haichong Wu, Changwei Qiu, Ganzhen Deng
Geraniol (GOH), a special type of acyclic monoterpene alcohol, has been widely used to treat many diseases associated with inflammation and apoptosis. Acute lung injury (ALI) is a common clinical disease in humans characterized by pulmonary inflammation and apoptosis. In the present study, we investigated the protective effects of GOH in a mouse model of ALI induced by the intranasal administration of lipopolysaccharide (LPS) and elucidated the underlying molecular mechanisms in RAW 264.7 cells. In vivo, GOH treatment markedly ameliorated pathological injury and pulmonary cell apoptosis and reduced the wet/dry (W/D) weight ratio of lungs, myeloperoxidase (MPO) activity and the production of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049420/production-of-proinflammatory-mediators-in-activated-microglia-is-synergistically-regulated-by-notch-1-glycogen-synthase-kinase-gsk-3%C3%AE-and-nf-%C3%AE%C2%BAb-p65-signalling
#8
Qiong Cao, Aparna Karthikeyan, S Thameem Dheen, Charanjit Kaur, Eng-Ang Ling
Microglia activation and associated inflammatory response are involved in the pathogenesis of different neurodegenerative diseases. We have reported that Notch-1 and NF-κB/p65 signalling pathways operate in synergy in regulating the production of proinflammatory mediators in activated microglia. In the latter, there is also evidence by others that glycogen synthase kinase 3β (GSK-3β) mediates the release of proinflammatory cytokines but the interrelationships between the three signalling pathways have not been fully clarified...
2017: PloS One
https://www.readbyqxmd.com/read/29047459/protostemonine-effectively-attenuates-lipopolysaccharide-induced-acute-lung-injury-in-mice
#9
Ya-Xian Wu, Hui-Qiong He, Yun-Juan Nie, Yun-He Ding, Lei Sun, Feng Qian
Protostemonine (PSN) is the main anti-inflammatory alkaloid extracted from the roots of Stemona sessilifolia (known as "Baibu" in traditional Chinese medicine). Here, we reported the inhibitory effects of PSN on lipopolysaccharide (LPS)-induced macrophage activation in vitro and LPS-induced acute lung injury in mice. Macrophage cell line RAW264.7 cells and mouse bone marrow-derived macrophages (BMDMs) were treated with PSN (1, 3, 10, 30 and 100 μmol/L) for 0.5 h and then challenged with LPS (0.1 μg/mL) for 24 h...
October 19, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29046695/artemisia-argyi-attenuates-airway-inflammation-in-lipopolysaccharide-induced-acute-lung-injury-model
#10
Na-Rae Shin, Sung-Hyeuk Park, Je-Won Ko, Hyung-Won Ryu, Seong-Hun Jeong, Jong-Choon Kim, Dong-Ho Shin, Hoon-Sang Lee, In-Sik Shin
Artemisia argyi is used as a health supplement, tea, and food source in Korea. This study aimed to evaluate the effect of Artemisia argyi (AA) and its active compound, dehydromatricarin A (DA), on the attenuation of airway inflammation in a murine model of lipopolysaccharide (LPS)-induced acute lung injury (ALI). The C57BL/6 mice were administered AA (50 mg/kg or 100 mg/kg) and DA (10 mg/kg or 20 mg/kg) by oral gavage from day 0 to 7 days and LPS treated by intranasal instillation 48 hours before the sacrifice...
September 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/29046669/susceptibility-to-mycobacterium-ulcerans-disease-buruli-ulcer-is-associated-with-ifng-and-inos-gene-polymorphisms
#11
Stéphanie Bibert, Martin W Bratschi, Samuel Y Aboagye, Emilie Collinet, Nicole Scherr, Dorothy Yeboah-Manu, Christian Beuret, Gerd Pluschke, Pierre-Yves Bochud
Buruli ulcer (BU) is a chronic necrotizing disease of the skin and subcutaneous fat tissue. The causative agent, Mycobacterium ulcerans, produces mycolactone, a macrolide toxin, which causes apoptosis of mammalian cells. Only a small proportion of individuals exposed to M. ulcerans develop clinical disease, as surrounding macrophages may control the infection by bacterial killing at an early stage, while mycolactone concentration is still low. Otherwise, bacterial multiplication leads to in higher concentrations of mycolactone, with formation of necrotizing lesions that are no more accessible to immune cells...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29046161/inhaled-nitric-oxide-in-preterm-neonates-with-refractory-hypoxemia-associated-to-oligohydramnios
#12
Alvarado Socarras Jorge, Castro M Javier, Fredi Alexander Diaz-Quijano
BACKGROUND: Therapy with inhaled nitric oxide (iNO) is effective in the management of pulmonary hypertension and severe hypoxemia. However, these benefits have not been demonstrated in preterm infants (<34 weeks). The objective of this report is to present the experience of eight cases of preterm neonates with respiratory distress syndrome (RDS) and refractory hypoxemia, with oligohydramnios history. METHODS: We evaluated the clinical feature of 8 preterm neonates with severe hypoxemia who had maternal antecedents of oligoamnios, mainly due to premature rupture of membranes...
October 17, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29043330/procyanidins-extracted-from-the-litchi-pericarp-ameliorate-atherosclerosis-in-apoe-knockout-mice-their-effects-on-nitric-oxide-bioavailability-and-oxidative-stress
#13
Shuang Rong, Xueting Hu, Siqi Zhao, Yanting Zhao, Xiao Xiao, Wei Bao, Liegang Liu
Epidemiological studies strongly support the role of procyanidin-rich beverages and fruit in the prevention of cardiovascular diseases. Procyanidins extracted from the litchi pericarp (LPPC), a new source of procyanidins, were isolated and identified in our laboratory and have been proven to possess strong antioxidant activity in vitro. In the present study, we investigated the anti-atherosclerotic effects of LPPC in apolipoprotein E knockout (ApoE KO) mice fed a high fat diet for 24 weeks. LPPC (100 mg kg(-1) body mass daily) significantly reduced the atherosclerotic lesion size (P < 0...
October 18, 2017: Food & Function
https://www.readbyqxmd.com/read/29042607/abnormal-m1-m2-macrophage-phenotype-profiles-in-the-small-airway-wall-and-lumen-in-smokers-and-chronic-obstructive-pulmonary-disease-copd
#14
Mathew Suji Eapen, Philip M Hansbro, Kielan McAlinden, Richard Y Kim, Chris Ward, Tillie-Louise Hackett, Eugene H Walters, Sukhwinder Singh Sohal
We explore potential dysregulation of macrophage phenotypes in COPD pathogenesis through integrated study of human small airway tissue, bronchoalveolar lavage (BAL) and an experimental murine model of COPD. We evaluated human airway tissue and BAL from healthy controls, normal lung function smokers (NLFS), and COPD subjects. Both small airways and BAL cells were immunohistochemically stained with anti-CD68 for total macrophages and with anti-CD163 for M2, and anti-iNOS for M1 macrophages. Multiplex ELISA measured BAL cytokines...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042086/effects-of-heat-and-cadmium-exposure-on-stress-related-responses-in-the-liver-of-female-zebrafish-heat-increases-cadmium-toxicity
#15
Sai-Nan Guo, Jia-Lang Zheng, Shuang-Shuang Yuan, Qing-Ling Zhu
In this study, female zebrafish (Danio rerio) were exposed to 26°C or 34°C, 0 or 197μg/L cadmium (Cd), singly or in combination for 7days. Multiple stress-related indicators were evaluated in the liver. Mortality, lipid peroxidation (LPO) and ultrastructural damage increased significantly by Cd exposure alone, and were not affected by heat alone. Interestingly, the combined exposure increased LPO, ultrastructural damage, and mortality compared with Cd exposure alone. The results indicated that elevated temperature increased Cd toxicity, which could be explained by several reasons...
October 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29041928/the-tlr3-ticam-1-signal-constitutively-controls-spontaneous-polyposis-through-suppression-of-c-myc-in-apc-min-mice
#16
Junya Ono, Hiroaki Shime, Hiromi Takaki, Ken Takashima, Kenji Funami, Sumito Yoshida, Yohei Takeda, Misako Matsumoto, Masanori Kasahara, Tsukasa Seya
BACKGROUND: Intestinal tumorigenesis is promoted by myeloid differentiation primary response gene 88 (MyD88) activation in response to the components of microbiota in Apc (Min/+) mice. Microbiota also contains double-stranded RNA (dsRNA), a ligand for TLR3, which activates the toll-like receptor adaptor molecule 1 (TICAM-1, also known as TRIF) pathway. METHODS: We established Apc (Min/+) Ticam1 (-/-) mice and their survival was compared to survival of Apc (Min/+) Myd88 (-/-) and wild-type (WT) mice...
October 17, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29040966/natural-product-celastrol-suppressed-macrophage-m1-polarization-against-inflammation-in-diet-induced-obese-mice-via-regulating-nrf2-ho-1-map-kinase-and-nf-%C3%AE%C2%BAb-pathways
#17
Dan Luo, Yumeng Guo, Yuanyuan Cheng, Jia Zhao, Yu Wang, Jianhui Rong
Macrophage polarization is implicated in the inflammation in obesity. The aim of the present study was to examine the anti-inflammatory activities of botanical triterpene celastrol against diet-induced obesity. We treated diet-induced obese C57BL/6N male mice with celastrol (5, 7.5 mg/kg/d) for 3 weeks, and investigated macrophage M1/M2 polarization in adipose and hepatic tissues. Celastrol reduced fat accumulation and ameliorated glucose tolerance and insulin sensitivity. Celastrol down-regulated the mRNA levels of macrophage M1 biomarkers (e...
October 16, 2017: Aging
https://www.readbyqxmd.com/read/29040326/mycobacterium-tuberculosis-infection-modulates-adipose-tissue-biology
#18
Macarena Beigier-Bompadre, Georgina N Montagna, Anja A Kühl, Laura Lozza, January Weiner, Andreas Kupz, Alexis Vogelzang, Hans-Joachim Mollenkopf, Delia Löwe, Silke Bandermann, Anca Dorhoi, Volker Brinkmann, Kai Matuschewski, Stefan H E Kaufmann
Mycobacterium tuberculosis (Mtb) primarily resides in the lung but can also persist in extrapulmonary sites. Macrophages are considered the prime cellular habitat in all tissues. Here we demonstrate that Mtb resides inside adipocytes of fat tissue where it expresses stress-related genes. Moreover, perigonadal fat of Mtb-infected mice disseminated the infection when transferred to uninfected animals. Adipose tissue harbors leukocytes in addition to adipocytes and other cell types and we observed that Mtb infection induces changes in adipose tissue biology depending on stage of infection...
October 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29040306/micheliolide-suppresses-lps-induced-neuroinflammatory-responses
#19
Zhaomeng Sun, Guodong Li, Tanjun Tong, Jun Chen
Microglia-involved neuroinflammation is thought to promote brain damage in various neurodegenerative disorders. Thus, inhibition of microglial over-activation may have a therapeutic benefit for the treatment of neurodegenerative disorders. Micheliolide (MCL) is a sesquiterpene lactone which inhibits various inflammatory response. However, whether MCL can inhibit neuroinflammation caused by LPS-activated BV2 microglia has not yet been explored. In this study, we demonstrated that treatment of BV2 cells with MCL significantly repressed LPS-stimulated nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression, as well as tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and nitric oxide (NO) induction...
2017: PloS One
https://www.readbyqxmd.com/read/29039495/protective-effects-of-neem-azadirachta-indica-a-juss-leaf-extract-against-cigarette-smoke-and-lipopolysaccharide-induced-pulmonary-inflammation
#20
Jae-Won Lee, Hyung Won Ryu, So-Yeon Park, Hyun Ah Park, Ok-Kyoung Kwon, Heung Joo Yuk, Krishna K Shrestha, Minwoo Park, Jung Hee Kim, Sangwoo Lee, Sei-Ryang Oh, Kyung-Seop Ahn
Neem (Azadirachta indica A. Juss.) leaf has been reported to exert anti-inflammatory, antibacterial and antioxidant effects. The purpose of this study was to investigate the protective effects of neem leaf extract (NLE) against cigarette smoke (CS)- and lipopolysaccharide (LPS)-induced pulmonary inflammation. Treatment with NLE significantly attenuated the infiltration of inflammatory cells, such as neutrophils and macrophages in bronchoalveolar lavage fluid (BALF). NLE also reduced the production of reactive oxygen species and the activity of neutrophil elastase in BALF...
October 10, 2017: International Journal of Molecular Medicine
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