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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/28715966/protective-effects-of-human-chorionic-gonadotropin-against-breast-cancer-how-can-we-use-this-information-to-prevent-treat-the-disease
#15
C V Rao
Breast cancers (BCs) are the most common malignancies among women worldwide. Giving birth to a first child before 24 years of age decreases the BC risk by about half, when women reach menopausal years. The scientific evidence suggests that the actions of human chorionic gonadotropin (hCG) are responsible for this decrease. Human BC cells and tissues contain hCG/luteinizing hormone receptors. The activation of the receptors results in an increase in cell differentiation and apoptosis. Conversely, it decreases the cell proliferation, invasion, and survival...
August 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28714369/sporamin-induces-apoptosis-and-inhibits-nf-%C3%AE%C2%BAb-activation-in-human-pancreatic-cancer-cells
#16
Cuijuan Qian, Xiaoying Chen, Yongxiao Qi, Sheng Zhong, Xinyan Gao, Wenjun Zheng, Zhixiang Mao, Jun Yao
Sporamin, a Kunitz-type trypsin inhibitor (TI) from sweet potato tuberous roots, has demonstrated anti-tumor activity through poorly defined mechanisms. Furthermore, the effects of sporamin on pancreatic cancer have not been explored. Herein, we studied the effects of sporamin on two human pancreatic cancer cell lines, PANC-1 and BxPC-3. Sporamin significantly inhibited the cell viability and proliferation activity and induced apoptosis in PANC-1 and BxPC-3 cells. Consistently, in sporamin-treated PANC-1 and BxPC-3 cells, the anti-apoptotic proteins Bcl-2 and Bcl-XL were downregulated and the pro-apoptotic protein Bax was upregulated...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28713490/picroside-ii-shows-protective-functions-for-severe-acute-pancreatitis-in-rats-by-preventing-nf-%C3%AE%C2%BAb-dependent-autophagy
#17
Xuehua Piao, Baohai Liu, Lianyi Guo, Fanji Meng, Leming Gao
Picroside II, from the herb Picrorhiza scrophulariiflora Pennell, has antioxidant and anti-inflammatory activities. However, its function on severe acute pancreatitis (SAP) and molecular mechanism remains unknown. The effects of picroside II on the SAP induced by cerulean were investigated. SAP rats were treated with picroside II (25 mg/kg). The severity of SAP was evaluated by using biochemical and histological analyses. Pancreatic cancer cell PANC-1 was transfected with ptfLC3 (an indicator of autophagic activity), pcDNA3...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28708885/pioglitazone-ameliorates-glomerular-nlrp3-inflammasome-activation-in-apolipoprotein-e-knockout-mice-with-diabetes-mellitus
#18
Yao Wang, Bo Yu, Li Wang, Ming Yang, Zhiyin Xia, Wei Wei, Fengyu Zhang, Xiaochen Yuan
OBJECTIVE: The NLRP3 inflammasome plays an important role in the pathogenesis of inflammation in diabetic nephropathy (DN). Pioglitazone (PIO) has been found to exert an anti-inflammatory effect in patients with diabetes mellitus, but it is still unclear whether PIO exhibits a similar effect in DN. We aimed to explore the effect and underlying mechanism of PIO on DN, as well as investigate if NLRP3 is a pharmacologic target of PIO. METHODS: We divided 48 apolipoprotein E (apoE) (-/-) mice into 4 groups: apoE (-/-), apoE (-/-) with PIO, diabetic apoE (-/-), and diabetic apoE (-/-) with PIO...
2017: PloS One
https://www.readbyqxmd.com/read/28708587/sodium-fluoride-induces-renal-inflammatory-responses-by-activating-nf-%C3%AE%C2%BAb-signaling-pathway-and-reducing-anti-inflammatory-cytokine-expression-in-mice
#19
Qin Luo, Hengmin Cui, Huidan Deng, Ping Kuang, Huan Liu, Yujiao Lu, Jing Fang, Zhicai Zuo, Junliang Deng, Yinglun Li, Xun Wang, Ling Zhao
Fluoride is widely distributed in the environment and often results in adverse health effects on animals and human beings. It has been proved that fluoride can induce inflammatory responses in vitro. However, very limited reports are focused on fluoride-induced inflammatory responses in vivo. In this study, mice were used to investigate sodium fluoride (NaF) induced renal inflammatory responses and the potential mechanism by using the methods of pathology, biochemistry, enzyme-linked immunosorbent assay (ELISA), quantitative real-time polymerase chain reaction (qRT-PCR) and western blot...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28708377/membrane-association-dictates-ligand-specificity-for-the-innate-immune-receptor-nod2
#20
Amy K Schaefer, James E Melnyk, Michael Baksh, Klare M Lazor, M G Finn, Catherine Leimkuhler Grimes
The human gut must regulate its immune response to resident and pathogenic bacteria, numbering in the trillions. The peptidoglycan component of the bacterial cell wall is a dense and rigid structure that consists of polymeric carbohydrates and highly crosslinked peptides which offers protection from the host and surrounding environment. Nucleotide-binding oligomerization domain-containing protein 2 (NOD2), a human membrane-associated innate immune receptor found in the gut epithelium and mutated in an estimated 30% of Crohn's disease patients, binds to peptidoglycan fragments and initiates an immune response...
July 14, 2017: ACS Chemical Biology
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