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https://www.readbyqxmd.com/read/29343543/an-autoimmune-disease-associated-risk-variant-in-the-tnfaip3-gene-plays-a-protective-role-in-brucellosis-that-is-mediated-by-the-nf-kappa-b-signaling-pathway
#1
Lixin Lou, Wanguo Bao, Xianjun Liu, Hongxiao Song, Yang Wang, Kaiyu Zhang, Wenjing Gao, Haijun Li, Zhengkun Tu, Shaofeng Wang
Naturally occurring functional variants (rs148314165 and rs200820567, collectively referred to as TT>A) reduce the expression of the tumor necrosis factor α-induced protein 3 (TNFAIP3) gene, a negative regulator of NF-κB signaling, and predispose individuals to autoimmune disease. In this analysis, we conducted a genetic association study of the TT>A variants in 1209 controls and in 150 patients with brucellosis, an infectious disease, and further assessed the role of the variants in brucellosis. Our data demonstrated that the TT>A variants were correlated with cases of brucellosis (P = 0...
January 17, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29343281/p-mapa-immunotherapy-potentiates-the-effect-of-cisplatin-on-serous-ovarian-carcinoma-through-targeting-tlr4-signaling
#2
Luiz Gustavo de Almeida Chuffa, Grazielle de Moura Ferreira, Luiz Antonio Lupi, Iseu da Silva Nunes, Wagner José Fávaro
BACKGROUND: Toll-like receptors (TLRs) are transmembrane proteins expressed on the surface of ovarian cancer (OC) and immune cells. Identifying the specific roles of the TLR-mediated signaling pathways in OC cells is important to guide new treatments. Because immunotherapies have emerged as the adjuvant treatment for patients with OC, we investigated the effect of a promising immunotherapeutic strategy based on protein aggregate magnesium-ammonium phospholinoleate-palmitoleate anhydride (P-MAPA) combined with cisplatin (CIS) on the TLR2 and TLR4 signaling pathways via myeloid differentiation factor 88 (MyD88) and TLR-associated activator of interferon (TRIF) in an in vivo model of OC...
January 17, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29340072/hyperbaric-oxygen-protects-against-myocardial-reperfusion-injury-via-the-inhibition-of-inflammation-and-the-modulation-of-autophagy
#3
Chunxia Chen, Wan Chen, Yaoxuan Li, Yanling Dong, Xiaoming Teng, Zhihuan Nong, Xiaorong Pan, Liwen Lv, Ying Gao, Guangwei Wu
Our previous study demonstrated that hyperbaric oxygen (HBO) preconditioning protected against myocardial ischemia reperfusion injury (MIRI) and improved myocardial infarction. However, HBO's effect on MIRI-induced inflammation and autophagy remains unclear. In this study, we investigate the potential impact and underlying mechanism of HBO preconditioning on an MIRI-induced inflammatory response and autophagy using a ligation of the left anterior descending (LAD) coronary artery rat model. Our results showed that HBO restored myocardial enzyme levels and decreased the apoptosis of cardiomyocytes, which were induced by MIRI...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29335864/ethanol-extract-of-lycopodium-serratum-thunb-attenuates-lipopolysaccharide-induced-c6-glioma-cells-migration-via-matrix-metalloproteinase-9-expression
#4
Ju-Yeon Park, Hyuck Kim, Dong-Woo Lim, Jai-Eun Kim, Won-Hwan Park, Sun-Dong Park
OBJECTIVE: To elucidate how ethanol extract of L. serratum (ELS) could exert anti-migratory effects on glioma with the suppression of nuclear factor kappa B (NF-κB) downstream pathway. METHODS: Cell viability of ELS on C6 glioma was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Nitric oxide (NO) assay and 2',7'-dichloroflfluorescin diacetate (DCFH-DA) assay were applied to measure NO production and reactive oxygen species (ROS) generation on lipopolysaccharide (LPS)-induced C6 glioma cells...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29334666/effects-of-berberine-chloride-on-the-liver-of-streptozotocin-induced-diabetes-in-albino-wistar-rats
#5
Govindasami Chandirasegaran, Chakkaravarthy Elanchezhiyan, Kavisa Ghosh
The goal of the present study is to evaluate the effect of Berberine chloride (BC) on the liver of streptozotocin (STZ) induced diabetic rat. Diabetic rats were treated with BC (50 mg/kg b.w) or glibenclamide (6 mg/kg b.w), daily for 45 days. After BC treatment in diabetic rats, there was a significant (P < 0.05) decline in the levels of hepatic markers, lipid peroxidation markers such as lipid hydroperoxides (LOOH) and thiobarbituric acid reactive substances (TBARS), and pro-inflammatory mediators like tumor necrosis factor-alpha (TNF-α), phosphorylated nuclear factor kappa-B-p65 (phospho-NF-κB p65), cyclooxygenase (COX-2), nitric oxide synthase (iNOS) as well as pro-apoptotic mediators such as Bax and cytochrome c...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29333957/mir-98-promotes-apoptosis-of-glioma-cells-via-suppressing-ikbke-nf-%C3%AE%C2%BAb-pathway
#6
Lingyan Wang, Shaolei Guo, Heng Zhang
The inhibitor of kappa B kinase epsilon is overexpressed in glioma and plays antiapoptotic role via activating nuclear factor-kappa B. microRNA-98 can suppress glioma, modulate the activities of nuclear factor-kappa B, and bind to the 3'-untranslated region of inhibitor of kappa B kinase epsilon messenger RNA. This study was aimed to investigate the modulation of inhibitor of kappa B kinase epsilon/nuclear factor-kappa B by microRNA-98 in glioma. The results indicated that microRNA-98 was downregulated in glioma cell lines and human glioma tissues...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29333048/astaxanthin-ameliorates-hepatic-damage-and-oxidative-stress-in-carbon-tetrachloride-administered-rats
#7
Md Ariful Islam, Md Abdullah Al Mamun, Md Faruk, Md Tauhid Ul Islam, Md Mizanur Rahman, Mohammad Nazmul Alam, A F M Towheedur Rahman, Hasan Mahmud Reza, Md Ashraful Alam
Background: Astaxanthin is of carotenoids group which possess strong antioxidant properties. The present study was conducted to evaluate the hepatoprotective effects of astaxanthin in carbon tetrachloride (CCl4)-treated rats. Materials and Methods: Female Long-Evans rats were administered with CCl4 orally (1 ml/kg) twice a week for 2 weeks and were treated with astaxanthin (10 mg/kg) every day for 2 weeks. Blood plasma samples were isolated from each group and were analyzed for alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase activities...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29330224/vitamin-d-ameliorates-impaired-wound-healing-in-streptozotocin-induced-diabetic-mice-by-suppressing-nf-%C3%AE%C2%BAb-mediated-inflammatory-genes-expression
#8
Yifeng Yuan, Sushant K Das, MaoQuan Li
[Background] : Diabetic wounds are characterized by delayed wound healing due to persistent inflammation and excessive production of reactive oxygen species. Vitamin D, which is well acknowledged as enhanced intestinal calcium absorption and increase in plasma calcium level, has recently been shown to display beneficial effects in various vascular diseases by promoting angiogenesis and inhibiting inflammatory responses. However the role of Vitamin Din diabetic wound healing is still unclear. [Materials and Methods] : In the present study, we investigated the role of Vitamin D in cutaneous wound healing in streptozotocin (STZ) induced diabetic mice...
January 12, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29329668/helicobacter-pylori-induces-direct-activation-of-the-lymphotoxin-beta-receptor-and-non-canonical-nuclear-factor-kappa-b-signaling
#9
Michael Hartmut Feige, Michael Vieth, Olga Sokolova, Christian Täger, Michael Naumann
The pathogen Helicobacter pylori, which infects half of the world's population, is a major risk factor for the development of gastric diseases including chronic gastritis and gastric cancer. Among H. pylori's virulence factors is the cytotoxin-associated gene pathogenicity island (cagPAI), which encodes for a type IV secretion system (T4SS). The T4SS induces fast canonical nuclear factor-kappa B (NF-κB) signaling, a major factor increasing inflammation, supressing apoptotic cell death and thereby promoting the development of neoplasia...
January 9, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29327811/an-aza-resveratrol-chalcone-derivative-6b-protects-mice-against-diabetic-cardiomyopathy-by-alleviating-inflammation-and-oxidative-stress
#10
Shengban You, Jianchang Qian, Chuchu Sun, Hailing Zhang, Shiju Ye, Taiwei Chen, Zheng Xu, Jingying Wang, Weijian Huang, Guang Liang
Inflammation and oxidative stress play a crucial role in the development of diabetic cardiomyopathy (DCM). We previously had synthesized an Aza resveratrol-chalcone derivative 6b, of which effectively suppressing lipopolysaccharide (LPS)-induced inflammatory response in macrophages. This study aimed to investigate the potential protective effect of 6b on DCM and underlying mechanism. In H9c2 myocardial cells, 6b potently decreased high glucose (HG)-induced cell fibrosis, hypertrophy and apoptosis, alleviating inflammatory response and oxidant stress...
January 12, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29323736/mapk-and-nf-%C3%AE%C2%BAb-signalling-pathways-regulate-the-expression-of-mirna-let-7f-in-human-endocervical-epithelial-cells
#11
Kanchana K Ayyar, Kvr Reddy
MicroRNAs (miRNAs) mediate post-transcriptional gene suppression and are a critical component of the complex regulatory networks in epithelial immune responses. Transcription of miRNA genes in epithelial cells can be elaborately controlled through Toll-like receptors (TLRs), and associated nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways, leading to nuclear transcription factor associated-transactivation and transrepression of miRNAs. MiRNA, let-7f is involved in the regulation of innate immune responses post TLR3 stimulation in human endocervical cells (End1/E6E7) and decreased let-7f is associated with poor immune activation...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29323204/calcium-phosphate-complex-increased-during-subchondral-bone-remodeling-affects-earlystage-osteoarthritis
#12
Youn-Kwan Jung, Min-Su Han, Hye-Ri Park, Eun-Ju Lee, Ji-Ae Jang, Gun-Woo Kim, Sun-Young Lee, DaeWon Moon, Seungwoo Han
An activation of osteoclasts and subchondral bone remodeling is a major histologic feature of early-stage osteoarthritis (OA), which can be accompanied by an increase of calcium (Ca) and phosphate (Pi) level in the subchondral milieu. Considering articular cartilage gets most of nutrition from subchondral bone by diffusion, these micro-environmental changes in subchondral bone can affect the physiology of articular chondrocytes. Here, we have shown that Ca is increased and co-localized with Pi in articular cartilage of early-stage OA...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322359/expression-profiles-of-micrornas-in-oxidized-low-density-lipoprotein-stimulated-raw-264-7-cells
#13
Xiaokai Li, Siyuan Feng, Yi Luo, Keren Long, Zhenghao Lin, Jideng Ma, Anan Jiang, Long Jin, Qianzi Tang, Mingzhou Li, Xun Wang
Macrophage-derived foam cells were one of the hallmarks of atherosclerosis, and microRNAs played an important role in the formation of foam cells. In order to explore the roles of miRNA in the formation of foam cells, we investigated miRNA expression profiles in foam cells through high-throughput sequencing technology. A total of 84 miRNAs were differentially expressed between RAW 264.7 macrophages and foam cells induced by ox-LDL. Thirty miRNAs were upregulated and 54 miRNAs were downregulated. GO terms and KEGG pathways analysis revealed that the target genes of most of DE miRNAs were mainly enriched in "cell differentiation," "endocytosis," "MAPK signaling pathway," and "FoxO signaling pathway...
January 10, 2018: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29319901/gomisin-a-modulates-aging-progress-via-mitochondrial-biogenesis-in-human-diploid-fibroblast-cells
#14
Jeong-Seok Kim, Seon-Hwa Jeong, Sin-Hee Han, Ho-Keun Yi
Gomisin A from the fruit of Schisandra chinensis has many pharmacological properties, including hepato-protective, anti-diabetic, and anti-oxidative stress. However, the potential benefit of gomisin A is still not well understood, especially in aging progression. Therefore, the aim of this study was to clarify whether the promotion of mitochondrial biogenesis and autophagy of gomisin A affects anti-aging progression, and its mechanism. Intermediate (PD32) Human diploid fibroblast (HDF) cells were brought to stress-induced premature senescence (SIPS) using hydrogen peroxide (H2 O2 )...
January 10, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29316784/clusterin-induces-muc5ac-expression-via-activation-of-nf-%C3%AE%C2%BAb-in-human-airway-epithelial-cells
#15
Chang Hoon Bae, Hyung Gyun Na, Yoon Seok Choi, Si-Youn Song, Yong-Dae Kim
Objectives: Clusterin (CLU) is known as apolipoprotein J, and has three isoforms with different biological functions. CLU is associated with various diseases such as Alzheimer disease, atherosclerosis, and some malignancies. Recent studies report an association of CLU with inflammation and immune response in inflammatory airway diseases. However, the effect of CLU on mucin secretion of airway epithelial cells has not yet been understood. Therefore, the effect and brief signaling pathway of CLU on MUC5AC (as a major secreted mucin) expression were investigated in human airway epithelial cells...
January 11, 2018: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29316751/-mechanism-of-action-for-oligomeric-proanthocyaniclins-in-pava-qnat-induced-acute-lung-injury
#16
P Liu, Y S Zhou, Y L Qin, L Li, Y Liu, B Xu, K Huang, C C Ji, F Lin, Y G Wang, K Li, S H Chen, L F Shao, J S Mu
Objective: The present study was designed to evaluate the protective effects of oligomeric proanthocyanidins (OPC) in mice exposed to paraquat (PQ) , and to explore the molecular mechanism. Methods: Four experimental groups were designed. CONTROL GROUP: 10 BALB/c mice were intraperitoneally injected with normal saline) . PQ group: 10 BALB/c mice were intraperitoneally injected with PQ (100 mg/kg) . PQ+OPC group: 10 BALB/c mice were administered with OPC (100 mg/kg) for 1 h before PQ (100 mg/kg) expo-sure...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29316404/the-cxcl12-cxcr4-axis-promotes-migration-invasion-and-emt-in-human-papillary-thyroid-carcinoma-b-cpap-cells-via-nf-%C3%AE%C2%BAb-signaling
#17
Yuanqiang Lin, Qingjie Ma, Lin Li, Hui Wang
Papillary thyroid carcinoma (PTC) is the most common thyroid malignancy involving local and distant metastasis. It is known that CXC chemokine ligand 12 (CXCL12) interacts specifically with CXC chemokine receptor 4 (CXCR4) to guide the migration of PTC cells. However, the signaling pathway downstream of the CXCL12/CXCR4 axis in PTC is not fully understood. In the present study, high expression of CXCR4 was detected in 38 out of 82 PTC specimens, and the expression level of CXCR4 was significantly correlated with the stage of PTC...
January 9, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29316063/bilirubin-reversibly-affects-cell-death-and-odontogenic-capacity-in-shed
#18
Haruyoshi Yamaza, Erika Tomoda, Soichiro Sonoda, Kazuaki Nonaka, Toshio Kukita, Takayoshi Yamaza
OBJECTIVE: Hyperbilirubinemia in patients with biliary atresia causes deciduous tooth injuries such as green pigmentation and dentin hypoplasia. In patients with biliary atresia who received liver transplantation, tooth structure appears to be recovered radiographically. Nevertheless, little is known about cellular mechanisms underlying bilirubin-induced damage and suppression of deciduous tooth formation. In this study, we examined the effects of bilirubin in stem cells from human exfoliated deciduous teeth (SHED) in vitro...
January 9, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29315581/parkinson-disease-related-dj-1-modulates-the-expression-of-uncoupling-protein-4-against-oxidative-stress
#19
Shaoqing Xu, Xiaodong Yang, Yiwei Qian, Qin Xiao
Loss of function mutations of DJ-1 (PARK7) have been linked to the pathogenesis of Parkinson disease (PD). Antioxidative stress is one of the multi-protective functions of DJ-1, and oxidation of cysteine 106 (Cys106) has been proposed to regulate the protective activity of DJ-1. Uncoupling protein 4 (UCP4) is located in the inner membrane of mitochondria and functions to protect against oxidative stress. In this study, we used neuronal (SH-SY5Y) cells and DJ-1 knockout (KO) mice to elucidate whether DJ-1 regulated oxidative stress via modulating the expression of UCP4, and the underlying mechanism...
January 8, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29315242/nf-kappab-two-sides-of-the-same-coin
#20
REVIEW
Bruno R B Pires, Rafael C M C Silva, Gerson M Ferreira, Eliana Abdelhay
Nuclear Factor-kappa B (NF-κB) is a transcription factor family that regulates a large number of genes that are involved in important physiological processes, including survival, inflammation, and immune responses. More recently, constitutive expression of NF-κB has been associated with several types of cancer. In addition, microorganisms, such as viruses and bacteria, cooperate in the activation of NF-κB in tumors, confirming the multifactorial role of this transcription factor as a cancer driver. Recent reports have shown that the NF-κB signaling pathway should receive attention for the development of therapies...
January 9, 2018: Genes
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