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https://www.readbyqxmd.com/read/28747574/oridonin-attenuates-the-release-of-pro-inflammatory-cytokines-in-lipopolysaccharide-induced-raw264-7-cells-and-acute-lung-injury
#1
Gan Zhao, Tao Zhang, Xiaofei Ma, Kangfeng Jiang, Haichong Wu, Changwei Qiu, Mengyao Guo, Ganzhen Deng
Acute lung injury (ALI) is a life-threatening inflammatory disease owing to the lack of specific and effective therapies. Oridonin (Ori) is an active diterpenoid isolated from Rabdosiarubescens (R.rubescens) that has been shown to possess a broadspectrum pharmacological properties including anti-inflammatory, antitumour, antioxidative and neuroregulatory effects. However, its potential protective mechanism in ALI is not well characterized. In this study, we demonstrated that Ori reduces the mortality of mice with ALI induced by a high dose of lipopolysaccharide (LPS), which suggests that Ori has a protective effect on LPS induced ALI...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28746340/effects-of-tanshinol-on-markers-of-bone-turnover-in-ovariectomized-rats-and-osteoblast-cultures
#2
Jianfeng Han, Wei Wang
This study was aimed to explore the role of tanshinol in osteoblastic cells, and the role in vivo using an ovariectomized (OVX) rat model of osteoporosis. MC3T3-E1 cells were pretreated with 0-400 μg/mL tanshinol, and then cell viability, apoptosis, alkaline phosphatase (ALP) activity and the expressions of Collagen Type I Alpha 1 (Col1A1), Runt Related Transcription Factor 2 (Runx2) and osteocalcin (OCN) were respectively detected. Rats underwent OVX surgery was intervened with 5 mg/kg tanshinol or 25 μg/kg β-estradiol (E2) for 12 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28745240/nf-%C3%AE%C2%BAb-a-friend-a-foe-or-a-bystander-in-the-neurodegenerative-cascade-and-pathogenesis-of-alzheimer-s-disease
#3
Othman Ghribi
Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) is a ubiquitous transcription factor that was discovered nearly three decades ago. Since its discovery, this protein complex has been implicated in numerous physiological and pathophysiological processes such as inflammation, insulin resistance, synaptic plasticity and memory as well as pathological conditions including cancer, autoimmune diseases, diabetes, and neurodegenerative diseases such as Alzheimer's disease. This review literature is focused on the potential role NF-κB may play in the etipathogenesis of Alzheimer's disease...
July 25, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28745235/effects-of-ascorbic-acid-on-tax-nf-%C3%AE%C2%BAb-and-mmp-9-in-human-t-cell-lymphotropic-virus-type-1-positive-malignant-t-lymphocytes
#4
Steve Harakeh, Jihane Khalife, Elias Baydoun, Rania Azar, Ahmed Al-Hejin, Elie Barbour, Esam Azhar, Aleksandra Niedzwiecki, Soad Al Jaouni, Mona Diab-Assaf, Mohammad Amjad Kamal, Mathias Rath
BACKGROUND: HTLV-1 is a retrovirus that infects CD4-positive cells and leads to Adult T-cell leukemia by constitutive activation of nuclear factor kappa B. Ascorbic acid (AA) is an essential nutrient that possess anti-proliferative and pro-apoptotic activity against a number of malignant cell lines. This study delineates the effect of AA on Tax protein expression as well as NF-κB and MMP9 activity in two HTLV-1-positive leukemia cells (HuT-102 and C91-PL). METHODS: The cytotoxic and antiproliferative effect of AA were studied by LDH release and MTT tests respectively...
July 25, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28739167/establishment-of-nf-%C3%AE%C2%BAb-sensing-and-interleukin-4-secreting-mesenchymal-stromal-cells-as-an-on-demand-drug-delivery-system-to-modulate-inflammation
#5
Tzuhua Lin, Jukka Pajarinen, Akira Nabeshima, Laura Lu, Karthik Nathan, Zhenyu Yao, Stuart B Goodman
Chronic inflammation is associated with up-regulation of the transcription factor nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and excessive inflammatory cytokine secretion by M1 macrophages. The anti-inflammatory cytokine interleukin (IL)-4 converts pro-inflammatory M1 macrophages into an anti-inflammatory and tissue-regenerative M2 phenotype, thus reducing inflammation and enhancing tissue regeneration. We have generated NF-κB responsive, or constitutively active IL-4 expression lentiviral vectors transduced into murine bone marrow-derived mesenchymal stromal cells (MSCs)...
July 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28738845/lutein-and-zeaxanthin-isomers-modulates-lipid-metabolism-and-the-inflammatory-state-of-retina-in-obesity-induced-high-fat-diet-rodent-model
#6
Mehmet Tuzcu, Cemal Orhan, Omer Ersin Muz, Nurhan Sahin, Vijaya Juturu, Kazım Sahin
BACKGROUND: Several studies associated high-fat intakes with a high incidence of age-related macular degeneration (AMD). Lutein and Zeaxanthin isomers (L/Zi) may counteract reactive oxygen species produced by oxidative stress. The present study was conducted to determine the possible effects of L/Zi administration on lipid profile, protein genes associated with oxidative stress and inflammation pathways in the obesity induced by a high-fat diet (HFD) in rodents. METHODS: Twenty-eight male Wistar rats were allocated into four groups as follows: (i) Control, (ii) Control + L/Zi, (iii) High Fat Diet (HFD), and (iv) HFD+ L/Z...
July 24, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28738542/protective-effects-of-tannic-acid-on-acute-doxorubicin-induced-cardiotoxicity-involvement-of-suppression-in-oxidative-stress-inflammation-and-apoptosis
#7
Jianping Zhang, Lijing Cui, Xue Han, Yuanyuan Zhang, Xuan Zhang, Xi Chu, Fenghua Zhang, Ying Zhang, Li Chu
Doxorubicin (DOX) is a highly effective drug, but its cardiotoxicity restricts its therapeutic index. Oxidative stress is the major etiopathological factor in DOX-induced cardiotoxicity. Tannic acid (TA) has various anti-cancer, antioxidant, and anti-inflammatory activities. The purpose of the study was to survey the possible effects of TA against acute DOX-induced cardiotoxicity. Male Sprague-Dawleyrats were randomly divided into five groups: control, DOX (10mg/kg) alone, DOX with TA (20 and 40mg/kg), or DOX withcaptopril (30mg/kg) treatments...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738524/elevated-microrna-125b-promotes-inflammation-in-rheumatoid-arthritis-by-activation-of-nf-%C3%AE%C2%BAb-pathway
#8
Bo Zhang, Li-Song Wang, Yu-Hu Zhou
microRNA-125b (miR-125b) has been reported to be increased in rheumatoid arthritis (RA). However, the role of miR-125b in RA remains to be fully elucidated. We aimed to explore the functional role of miR-125b in RA, as well as the underlying mechanism. The expression of miR-125b in serum and synovial tissues of patients with RA and healthy controls was confirmed. In addition, the levels of miR-125b in lipopolysaccharide (LPS)-stimulated fibroblast-like synoviocytes (FLS) were also measured. FLS were transfected with miR-125b mimic, antisense oligonucleotides (ASO)-miR-125b, pcDNA-inhibitor of NF-κB (IκB)-α or corresponding controls, and then stimulated with LPS or incubated with nuclear factor kappa B (NF-κB) inhibitors pyrrolidine dithiocarbamate (PDTC)...
July 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738269/an-anti-inflammatory-effect-of-red-microalga-polysaccharides-in-coronary-artery-endothelial-cells
#9
Oshrat Levy-Ontman, Mahmoud Huleihel, Rachel Hamias, Talya Wolak, Esther Paran
BACKGROUND AND AIMS: Polysaccharides (PSs) produced by the red microalga Porphyridium sp. were reported to exhibit anti-inflammatory bioactivities in the human skin. The primary goal of the present research was to assess whether PSs attenuate inflammatory processes by interfering with tumour necrosis factor-alpha (TNF-α)-induced inflammation, in human coronary artery endothelial cells (HCAECs). METHODS: Functional and inflammatory markers were quantified in TNF-α-stimulated HCAECs, with and without pre-treatment with PSs...
July 16, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28737909/inhibitory-kappa-b-kinse-%C3%AE-ikk%C3%AE-inhibitors-that-recapitulate-their-selectivity-in-cells-against-isoform-related-biomarkers
#10
Nahoum G Anthony, Jessica Baiget, Giacomo Berretta, Marie Boyd, David Breen, Joanne Edwards, Carly Gamble, Alexander I Gray, Alan L Harvey, Sophia Hatziieremia, Ka Ho Ho, Judith K Huggan, Stuart Lang, Sabin Llona-Minguez, Jia Lin Luo, Kathryn McIntosh, Andrew Paul, Robin J Plevin, Murray N Robertson, Rebecca Scott, Colin J Suckling, Oliver Brook Sutcliffe, Louise C Young, Simon Paul Mackay
IKKβ plays a central role in the canonical NF-kB pathway, which has been extensively characterised. The role of IKKα in the non-canonical NF-kB pathway, and indeed in the canonical pathway as a complex with IKKβ, is less well understood. One major reason for this is the absence of chemical tools designed as selective inhibitors for IKKα over IKKβ, until now. Herein, we report for the first time a series of novel, potent and selective inhibitors of IKKα. We demonstrate effective target engagement and selectivity with IKKα in U2OS cells through inhibition of IKKα-driven p100 phosphorylation in the non-canonical NF-kB pathway without affecting IKKβ-dependent IKappa-Bα loss in the canonical pathway...
July 24, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28736552/asiatic-acid-exhibits-anti-inflammatory-and-antioxidant-activities-against-lipopolysaccharide-and-d-galactosamine-induced-fulminant-hepatic-failure
#11
Hongming Lv, Zhimin Qi, Sisi Wang, Haihua Feng, Xuming Deng, Xinxin Ci
Inflammation and oxidative stress are essential for the pathogenesis of fulminant hepatic failure (FHF). Asiatic acid (AA), which is a pentacyclic triterpene that widely occurs in various vegetables and fruits, has been reported to possess antioxidant and anti-inflammatory properties. In this study, we investigated the protective effects of AA against lipopolysaccharide (LPS) and d-galactosamine (GalN)-induced FHF and the underlying molecular mechanisms. Our findings suggested that AA treatment effectively protected against LPS/d-GalN-induced FHF by lessening the lethality; decreasing the alanine transaminase and aspartate aminotransferase levels, interleukin (IL)-1β, IL-6, and tumor necrosis factor-α production, malondialdehyde formation, myeloperoxidase level and reactive oxygen species generation (i...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28734766/trpv1-modulates-morphine-induced-conditioned-place-preference-via-p38-mapk-in-the-nucleus-accumbens
#12
Sa-Ik Hong, Thi-Lien Nguyen, Shi-Xun Ma, Hyoung-Chun Kim, Seok-Yong Lee, Choon-Gon Jang
Emerging evidence suggests that the transient receptor potential vanilloid type 1 channel (TRPV1) is a novel target for the treatment of drug addiction, such as cocaine and morphine. Previously we reported that TRPV1 inhibition reduced morphine reward in the dorsal striatum (DSt) of mice and morphine self-administration through a decrease in accumbal activity in rats. However, the role of TRPV1 on morphine-conditioned reward in addiction-related brain regions, such as the nucleus accumbens (NAc), has not been previously established...
July 19, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28733145/adipocytes-promote-nicotine-induced-injury-of-endothelial-cells-via-the-nf-%C3%AE%C2%BAb-pathway
#13
Xiu Liu, Chao-Nan Wang, Chen-Yang Qiu, Wei Song, Lin-Fang Wang, Bao Liu
Cigarette smoking is one of the most important risk factors of atherosclerosis, which can induce endothelial injury. Meanwhile, adipocytes are the main cell type of perivascular adipose tissue (PVAT), the largest endocrine and paracrine organ and direct anatomical connection to adventitia, which may play a key role in the injury of endothelial cells. We used nicotine to induce dysfunctional HUVECs and adipocytes. In addition, we used a novel model to co-culture HUVECs and adipocytes in vitro by the transwell co-culture system to determine the effect of adipocytes on endothelial injury...
July 18, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28731277/tnf-%C3%AE-induced-nf-%C3%AE%C2%BAb-activation-promotes-myofibroblast-differentiation-of-lr-mscs-and-exacerbates-bleomycin-induced-pulmonary-fibrosis
#14
Jiwei Hou, Tan Ma, Honghui Cao, Yabing Chen, Cong Wang, Xiang Chen, Zou Xiang, Xiaodong Han
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, and irreversible lung disease of unknown cause. It has been reported that both lung resident mesenchymal stem cells (LR-MSCs) and tumor necrosis factor-α (TNF-α) play important roles in the development of pulmonary fibrosis. However, the underlying connections between LR-MSCs and TNF-α in the pathogenesis of pulmonary fibrosis are still elusive. In this study, we found that the pro-inflammatory cytokine TNF-α and the transcription factor nuclear factor kappa B (NF-κB) p65 subunit were both upregulated in bleomycin-induced fibrotic lung tissue...
July 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28730070/inhibition-effect-of-curcumin-on-uvb-induced-secretion-of-pro-inflammatory-cytokines-from-corneal-limbus-epithelial-cells
#15
Shih-Chun Chao, Dan-Ning Hu, Joan Roberts, Xilun Shen, Chia-Yi Lee, Chan-Wei Nien, Hung-Yu Lin
AIM: To study the effects of curcumin on the secretion of interleukin (IL)-6 and IL-8 by corneal limbus epithelial cells. METHODS: Human corneal limbus epithelial cells were isolated and cultured from donor eyes and irradiated by UVB at different dosages with or without curcumin. MTT test was used for studying the effects of UVB and curcumin on the cell viability. The role of mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-κB) pathways on the UVB-induced secretion of IL-6 and IL-8 were tested by addition of their inhibitors to the culture with or without UVB-radiation...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28725015/all-printed-highly-sensitive-2d-mos2-based-multi-reagent-immunosensor-for-smartphone-based-point-of-care-diagnosis
#16
Memoon Sajid, Ahmed Osman, Ghayas Uddin Siddiqui, Hyun Bum Kim, Soo Wan Kim, Jeong Bum Ko, Yoon Kyu Lim, Kyung Hyun Choi
Immunosensors are used to detect the presence of certain bio-reagents mostly targeted at the diagnosis of a condition or a disease. Here, a general purpose electrical immunosensor has been fabricated for the quantitative detection of multiple bio-reagents through the formation of an antibody-antigen pair. The sensors were fabricated using all printing approaches. 2D transition metal dichalcogenide (TMDC) MoS2 thin film was deposited using Electrohydrodynamic atomization (EHDA) on top of an interdigitated transducer (IDT) electrode fabricated by reverse offset printing...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724884/effects-of-zinc-finger-protein-a20-on-lipopolysaccharide-lps-induced-pulmonary-inflammation-anti-inflammatory-mediators-in-an-acute-lung-injury-acute-respiratory-distress-syndrome-rat-model
#17
Ding-Qian Wu, Hong-Bo Wu, Mao Zhang, Jian-An Wang
BACKGROUND The aim of this study was to investigate the effects of zinc finger protein A20 on lipopolysaccharide (LPS)-induced pulmonary inflammation/anti-inflammatory mediators in an acute lung injury/acute respiratory distress syndrome (ALI/ARDS) rat model. MATERIAL AND METHODS Forty-eight ALI/ARDS rats were selected and assigned into normal saline (NS) (injected with NS), LPS (injected with LPS), LPS-C1 (injected with pEGFP-C1, NS and LPS), and A20 groups (injected with pEGFP-C1-A20, NS, and LPS). The wet/dry (W/D) ratio of rat lung tissues and total protein concentration and the number of neutrophils in bronchoalveolar lavage fluid (BALF) were detected...
July 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28723696/advanced-glycation-end-products-downregulate-hoxa9ec-through-activation-of-nuclear-factor-kappa-b-by-reciprocal-interaction
#18
Qian-Qian Zhu, Dong-Lin Li, Yang-Yan He, Zi-Heng Wu, Lu Tian, Cheng-Fei Zheng, Nan Zhang, Hong-Kun Zhang
Advanced glycation end-products (AGEs) have been recognized as an important pathophysiological mechanism in endothelial dysfunction during diabetic atherogenesis. Homeobox (Hox) genes have been identified as playing a regulatory role in the adult cardiovascular system. Regulation of HoxA9EC is involved in diabetic endothelial dysfunction, but the mechanism of HoxA9EC regulation has remained undefined. Here, we sought to investigate how HoxA9EC is regulated in AGE-induced endothelial dysfunction and to explore the mechanism involved...
July 20, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28722236/the-membrane-type-estrogen-receptor-g-protein-coupled-estrogen-receptor-suppresses-lipopolysaccharide-induced-interleukin-6-via-inhibition-of-nuclear-factor-kappa-b-pathway-in-murine-macrophage-cells
#19
Mariko Okamoto, Takuto Suzuki, Yoichi Mizukami, Teruo Ikeda
The female sex hormone estrogen exerts anti-inflammatory effects. The G-protein-coupled estrogen receptor (GPER) has been recently identified as a novel membrane-type estrogen receptor that can mediate non-genomic estrogenic effects on many cell types. We previously demonstrated that GPER inhibits tumor necrosis factor alpha-induced expression of interleukin 6 (IL-6) through repression of nuclear factor-kappa B (NF-κB) promoter activity using human breast cancer cells. Although several reports have indicated that GPER suppresses Toll-like receptor-induced inflammatory cytokine expression in macrophages, the molecular mechanisms of the inhibition of cytokine production via GPER remain poorly understood...
July 18, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28719912/crocin-protects-podocytes-against-oxidative-stress-and-inflammation-induced-by-high-glucose-through-inhibition-of-nf-%C3%AE%C2%BAb
#20
Sutong Li, Xiaoxia Liu, Jie Lei, Junle Yang, Puxun Tian, Yi Gao
BACKGROUND/AIMS: Diabetic nephropathy (DN) is a microangiopathic disease characterized by excessive urinary albumin excretion, which occurs in 30% of patients with diabetes mellitus. It is the second leading cause of end-stage renal diseases in China. Nuclear factor-kappa B (NF-κB) is reported to be closely correlated with the inflammation underlying diabetes-associated renal damage. Crocin, a plant-derived compound, has antioxidant properties that may inhibit NF-κB. METHODS: In the present study, we used a conditionally immortalized mouse podocyte cell line to explore whether crocin could effectively block albuminuria...
July 18, 2017: Cellular Physiology and Biochemistry
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