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https://www.readbyqxmd.com/read/28735510/fxa-inhibition-by-rivaroxaban-modifies-mechanisms-associated-with-the-pathogenesis-of-human-abdominal-aortic-aneurysms
#1
G Moñux, J J Zamorano-León, P Marqués, B Sopeña, J M García-García, G Laich de Koller, B Calvo-Rico, M A García-Fernandez, J Serrano, A López-Farré
AIM: To evaluate if Rivaroxaban, an oral factor Xa (FXa) inhibitor, could in vitro modify the expression of inflammatory and oxidative stress biomarkers in abdominal aortic aneurysmal (AAA) sites showing intraluminal thrombus. METHODS: AAA sites with intraluminal mural thrombus were obtained from six patients undergoing elective AAA repair. In addition, control abdominal aortic samples were obtained from six organ donors. AAA sites were incubated in the presence and absence of 50 nmol/L Rivaroxaban...
July 23, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28735448/inhibitory-effects-of-andrographolide-on-activated-macrophages-and-adjuvant-induced-arthritis
#2
Swati Gupta, Kamla Prasad Mishra, Shashi Bala Singh, Lilly Ganju
Andrographolide, a diterpenoid lactone obtained from plant Andrographis paniculata, is used in South Asian countries to relieve various inflammatory symptoms. To study the effects of this agent, the impact of andrographolide on production of inflammatory mediators were delineated in mouse peritoneal macrophages (PMϕ). Inflammatory mediators like nitric oxide (NO), tumor necrosis factor (TNF)-α, interleukin-6 and related molecular mechanisms of andrographolide-mediated inhibition of enzymes/transcription factors were studied...
July 22, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28734818/preoperative-aqueous-cytokine-levels-are-associated-with-a-rapid-reduction-in-endothelial-cells-after-penetrating-keratoplasty
#3
Yukari Yagi-Yaguchi, Takefumi Yamaguchi, Kazunari Higa, Terumasa Suzuki, Hiroyuki Yazu, Naohiko Aketa, Yoshiyuki Satake, Kazuo Tsubota, Jun Shimazaki
PURPOSE: To evaluate the influence of preoperative inflammatory cytokine levels in the aqueous humor (AqH) on the endothelial cell density (ECD) after penetrating keratoplasty (PKP). DESIGN: Prospective interventional, consecutive case series. METHODS: This study includes 70 consecutive patients (mean age 73.7 ± 10.6), who underwent PKP (37 eyes) or cataract surgery (controls, 33 eyes). A total of 70 AqH samples were collected at the beginning of each surgery...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734743/adjuvantation-of-inactivated-foot-and-mouth-disease-virus-vaccine-with-il-15-expressing-plasmid-improves-the-immune-response-in-guinea-pigs
#4
Vijay Nagaraj, Lijo John, Singaram Bharatiraja, Hosur Joyappa Dechamma, Golla Ramalinga Reddy
Foot and mouth disease is a highly contagious disease affecting cloven footed animals. Vaccination using inactivated virus is followed to control the disease. As the immune response conferred by the inactivated vaccine is short lived, there is a need for an alternate vaccine with increased duration of immunity. Inclusion of adjuvant which enhances B and T cell responses is one of the strategies to increase the duration of immune responses of the vaccine. Interleukin 15 is one such a cytokine which improves the cell mediated immune response and also involved in the maintenance of memory T and B cells...
July 19, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28734353/streptavidin-biotin-peroxidase-nanocomplex-amplified-microfluidics-immunoassays-for-simultaneous-detection-of-inflammatory-biomarkers
#5
Jing Wu, Yiping Chen, Mingzhu Yang, Yu Wang, Cheng Zhang, Mo Yang, Jiashu Sun, Mengxia Xie, Xingyu Jiang
Simultaneous, sensitive and quantitative detection of biomarkers in infectious disease is crucial for guiding antimicrobial treatment and predicting prognosis. This work reported an ultrasensitive and quantitative microfluidic immunoassay combined with the streptavidin-biotin-peroxidase (SA-B-HRP) nanocomplex-signal amplification system (MIS) to detect two inflammatory biomarkers, procalcitonin (PCT, for discriminating bacterial infections from nonbacterial infections) and interleukin-6 (IL-6, for monitoring the kinetics of infectious disease) simultaneously...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734155/activation-of-mtor-is-involved-in-anti-%C3%AE-2gpi-%C3%AE-2gpi-induced-expression-of-tissue-factor-and-il-8-in-monocytes
#6
Longfei Xia, Hong Zhou, Ting Wang, Yachao Xie, Ting Wang, Xiaoyan Wang, Jinchuan Yan
Previous study has demonstrated that activation of the mammalian target of rapamycin (mTOR) pathway in endothelial cells (ECs) results in the formation of chronic vascular lesions associated with antiphospholipid syndrome (APS). In addition, it has been shown that stimulation of monocytes and ECs by antiphospholipid antibodies (aPL) leads to a prothrombotic and proinflammatory state and up-regulated expression of tissue factor (TF) and inflammatory cytokines. However, the role of mTOR in pathogenic mechanisms of APS remains largely unexplored...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28734043/enabling-reduction-of-low-grade-inflammation-in-seniors-pilot-study-concept-rationale-and-design
#7
Todd M Manini, Stephen D Anton, Daniel P Beavers, Jane A Cauley, Mark A Espeland, Roger A Fielding, Stephen B Kritchevsky, Christiaan Leeuwenburgh, Kristina H Lewis, Christine Liu, Mary M McDermott, Michael E Miller, Russell P Tracy, Jeremy D Walston, Barbara Radziszewska, Jane Lu, Cindy Stowe, Samuel Wu, Anne B Newman, Walter T Ambrosius, Marco Pahor
OBJECTIVES: To test two interventions to reduce interleukin (IL)-6 levels, an indicator of low-grade chronic inflammation and an independent risk factor for impaired mobility and slow walking speed in older adults. DESIGN: The ENabling Reduction of low-Grade Inflammation in SEniors (ENRGISE) Pilot Study was a multicenter, double-blind, placebo-controlled randomized pilot trial of two interventions to reduce IL-6 levels. SETTING: Five university-based research centers...
July 22, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28733891/consequences-of-bisphenol-a-perinatal-exposure-on-immune-responses-and-gut-barrier-function-in-mice
#8
Yann Malaisé, Sandrine Ménard, Christel Cartier, Corinne Lencina, Caroline Sommer, Eric Gaultier, Eric Houdeau, Laurence Guzylack-Piriou
The potent immunomodulatory effect of the endocrine disruptor bisphenol A during development and consequences during life span are of increasing concern. Particular interests have been raised from animal studies regarding the risk of developing food intolerance and infection. We aimed to identify immune disorders in mice triggered by perinatal exposure to bisphenol A. Gravid mice were orally exposed to bisphenol (50 μg/kg body weight/day) from day 15 of pregnancy until weaning. Gut barrier function, local and systemic immunity were assessed in adult female offspring...
July 21, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28733866/inhibitory-effect-and-mechanism-of-mesenchymal-stem-cells-on-melanoma-cells
#9
J Zhang, L Hou, D Zhao, M Pan, Z Wang, H Hu, J He
PURPOSE: To explore the inhibitory effect and mechanism of MSCs on melanoma proliferation. METHODS: The inhibitory effect of MSCs on melanoma A375 cells was detected by co-culture and conditioned medium (CM) experiments using MTT method. The cell cycle was analyzed by flow cytometry. Then, Western Blot experiment detected the expression of proteins related to NF-κB signaling in A375 cells. The expression of IL-1Ra in MSCs was proved by RT-PCR. The over-expression and silencing vector pcDNA3...
July 21, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28733640/interleukin-37-promotes-angiogenesis-through-tgf-%C3%AE-signaling
#10
Mengmeng Zhao, Yongguang Hu, Jiayi Jin, Ying Yu, Shanshan Zhang, Jingjing Cao, Yuanfen Zhai, Rongbin Wei, Juanjuan Shou, Wenping Cai, Shangfeng Liu, Xiaoping Yang, Guo-Tong Xu, Jianhua Yang, David B Corry, Shao Bo Su, Xialin Liu, Tianshu Yang
IL-37 is a novel pro-angiogenic cytokine that potently promotes endothelial cell activation and pathological angiogenesis in our previous study, but the mechanisms behind the pro-angiogenic effect of IL-37 are less well understood. Extending our observations, we found that TGF-β interacts with IL-37, and potently enhances the binding affinity of IL-37 to the ALK1 receptor complex, thus allowing IL-37 to signal through ALK1 to activate pro-angiogenic responses. We further show that TGF-β and ALK1 are required in IL-37 induced pro-angiogenic response in ECs and in the mouse model of Matrigel plug and oxygen-induced retinopathy...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733520/the-ketogenic-diet-is-not-feasible-as-a-therapy-in-a-cd-1-nu-nu-mouse-model-of-renal-cell-carcinoma-with-features-of-stauffer-s-syndrome
#11
Silvia Vidali, Sepideh Aminzadeh-Gohari, René Günther Feichtinger, Renaud Vatrinet, Andreas Koller, Felix Locker, Tricia Rutherford, Maura O'Donnell, Andrea Stöger-Kleiber, Bridget Lambert, Thomas Klaus Felder, Wolfgang Sperl, Barbara Kofler
The ketogenic diet (KD), a high-fat low-carbohydrate diet, has shown some efficacy in the treatment of certain types of tumors such as brain tumors and neuroblastoma. These tumors are characterized by the Warburg effect. Because renal cell carcinoma (RCC) presents similar energetic features as neuroblastoma, KD might also be effective in the treatment of RCC. To test this, we established xenografts with RCC 786-O cells in CD-1 nu/nu mice and then randomized them to a control diet or to KDs with different triglyceride contents...
July 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733143/mechanisms-of-nlrp1-mediated-autoinflammatory-disease-in-humans-and-mice
#12
REVIEW
Chien-Hsiung Yu, Jonas Moecking, Matthias Geyer, Seth L Masters
NLRP1 was the first NLR protein described to form an inflammasome, recruiting ASC to activate caspase-1, which processes interleukin-1β and interleukin-18 to their active form. A wealth of new genetic information has now redefined our understanding of this innate immune sensor. Specifically, rare loss-of-function variants in the N-terminal pyrin domain (PYD) indicate that this part of NLRP1 is autoinhibitory, and normally acts to prevent a familial autoinflammatory skin disease associated with cancer. In the absence of a ligand to trigger human NLRP1, these mutations have now confirmed the requirement of NLRP1 autolytic cleavage within the FIIND domain, which had previously been implicated in NLRP1 activation...
July 18, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28733045/induction-of-live-cell-phagocytosis-by-a-specific-combination-of-inflammatory-stimuli
#13
Takamasa Ishidome, Takeshi Yoshida, Rikinari Hanayama
Conditions of severe hyper-inflammation can lead to uncontrolled activation of macrophages, and the ensuing phagocytosis of live cells. However, relationships between inflammatory stimuli and uncontrolled phagocytosis of live cells by macrophages are poorly understood. To identify mediators of this process, we established phagocytosis assays of live cells by stimulating macrophages with CpG DNA, interferon-γ, and anti-interleukin-10 receptor antibody. In this model, various cell surface receptors were upregulated on macrophages, and phagocytosis of live cells was induced in a Rac1-dependent manner...
July 13, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28732437/effect-of-microrna-21-transfection-on-in-vitro-differentiation-of-human-naive-cd4-t-cells-to-regulatory-t-cells
#14
Haideh Namdari, Mojgan Ghayedi, Jamshid Hadjati, Farhad Rezaei, Kurosh Kalantar, Parisa Rahimzadeh, Eisa Salehi
Regulatory T cells (Tregs) are important components of the immune system that modulate responses of other cells. These cells are involved in peripheral tolerance mechanisms, so defect in development and function of these cells can result in autoimmune disease. Increasing evidence supports the role of microRNAs-21 (miR-21) in the regulation of forkhead box P3 (Foxp3) expression in Tregs. We aimed to determine whether miR-21 transfection to naive CD4+ T cells can be useful in generation of iTregs in-vitro. We investigated in-vitro differentiation of miR-21-transfected naive CD4+ T cells to iTregs and compared these iTregs to cytokine-differentiated iTregs and control group...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28732288/lncrna-hotair-alleviates-rheumatoid-arthritis-by-targeting-mir-138-and-inactivating-nf-%C3%AE%C2%BAb-pathway
#15
Hong-Ju Zhang, Qiao-Feng Wei, Shu-Jun Wang, Hong-Jie Zhang, Xiu-Ying Zhang, Qin Geng, Yan-Hui Cui, Xiu-Hua Wang
Rheumatoid arthritis (RA) is a chronic and autoimmune-mediated inflammatory disease. We aimed to investigate the regulation of lncRNA HOTAIR in LPS-treated chondrocytes and RA mouse. Our results showed that HOTAIR expression was significantly reduced in LPS-treated chondrocytes. The HOTAIR was then over-expressed in chondrocytes by transfecting recombinant lentivirus carrying sequences encoding HOTAIR. The LPS-induced reduction of cell proliferation rate and production of two inflammatory factors interleukin (IL)-17, IL-23 were markedly inhibited...
July 18, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28732245/interleukin-4-receptor-targeted-delivery-of-bcl-xl-sirna-sensitizes-tumors-to-chemotherapy-and-inhibits-tumor-growth
#16
Padmanaban Guruprasath, Jihoon Kim, Gowri Rangaswamy Gunassekaran, Lianhua Chi, Soyoun Kim, Rang-Woon Park, Sang-Hyun Kim, Moon-Chang Baek, Sang Mun Bae, Sang-Yeob Kim, Dong-Kyu Kim, In-Kyu Park, Won-Jong Kim, Byungheon Lee
IL-4 receptor (IL-4R) is commonly up-regulated on tumor cells, and interactions between the receptor and Interleukin-4 (IL-4) can induce the expression of anti-apoptotic proteins, including Bcl-xL. This contributes to tumor cell survival and their resistance to chemotherapy. In this study, we exploited IL-4R-targeted delivery of Bcl-xL siRNA to IL-4R-expressing tumor cells in order to sensitize them to chemotherapy. To target IL-4R, an IL-4R-binding peptide, IL4RPep-1, was attached to branched polyethyleneimine-superparamagnetic iron oxide nanoparticles (BPEI-SPION)...
July 15, 2017: Biomaterials
https://www.readbyqxmd.com/read/28732152/secukinumab-in-the-treatment-of-psoriasis-and-psoriatic-arthritis-a-review-of-the-literature
#17
M Abrouk, J Gandy, M Nakamura, K Lee, M Brodsky, R Singh, H Zhu, B Farahnik, T Bhutani, J Koo
While there are several commercially available treatment options for psoriasis and psoriatic arthritis, there remains a large number of individuals who are refractory to current modalities. In the recent past, there has been increasing evidence that interleukin (IL)-17 plays a vital role in the pathophysiology of psoriasis. Preclinical, phase II, and phase III studies of secukinumab (Cosentyx®) targeting IL-17 and its receptor have thus far proved to be promising. We reviewed the results of phase II and phase III clinical trials for secukinumab in the treatment of psoriasis and psoriatic arthritis...
July 2017: Skin Therapy Letter
https://www.readbyqxmd.com/read/28732081/il-6-variant-is-associated-with-metastasis-in-breast-cancer-patients
#18
Chike O Abana, Brian S Bingham, Ju Hwan Cho, Amy J Graves, Tatsuki Koyama, Robert T Pilarski, A Bapsi Chakravarthy, Fen Xia
INTRODUCTION: Although tumor metastases remain significant drivers of mortality, the genetic factors that increase the risks of metastases are not fully identified. Interleukin 6 (IL-6) has emerged as an important factor in breast cancer progression with IL-6 single nucleotide polymorphism (SNP) variants shown to affect survival. We hypothesized that SNPs of the IL-6 promoter at rs1800795 in breast cancer patients are associated with distant metastases. METHODS: We performed an initial case-control study using Vanderbilt University Medical Center's BioVU, a genomic biobank linked to de-identified electronic medical records in the Synthetic Derivative database, to identify germline SNPs that may predict the development of metastatic disease to any site from any solid tumor including breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28732069/saccharomyces-boulardii-cncm-i-745-supplementation-reduces-gastrointestinal-dysfunction-in-an-animal-model-of-ibs
#19
Paola Brun, Melania Scarpa, Chiara Marchiori, Gloria Sarasin, Valentina Caputi, Andrea Porzionato, Maria Cecilia Giron, Giorgio Palù, Ignazio Castagliuolo
BACKGROUND: We evaluated the effect of Saccharomyces boulardii CNCM I-745 on intestinal neuromuscular anomalies in an IBS-type mouse model of gastrointestinal motor dysfunctions elicited by Herpes Simplex Virus type 1 (HSV-1) exposure. METHODS: Mice were inoculated intranasally with HSV-1 (102 PFU) or vehicle at time 0 and 4 weeks later by the intragastric (IG) route (108 PFU). Six weeks after IG inoculum, mice were randomly allocated to receive oral gavage with either S...
2017: PloS One
https://www.readbyqxmd.com/read/28732053/dysregulation-of-pulmonary-endothelial-protein-c-receptor-and-thrombomodulin-in-severe-falciparum-malaria-associated-ards-relevant-to-hemozoin
#20
Sitang Maknitikul, Natthanej Luplertlop, Georges E R Grau, Sumate Ampawong
To investigate the role of the protein C system, endothelial protein C receptor (EPCR) and thrombomodulin (TM) in the pathogenesis of malaria-associated acute respiratory distress syndrome (ARDS) in relation to hemozoin and proinflammatory cytokines-induced type II pneumocyte injury and -aggravated pulmonary resolution. A total of 29 left-over lung specimens that were obtained from patients who died from severe falciparum malaria were examined. Histopathological, immunohistochemical and electron microscopic analyses revealed that ARDS coexisted with pulmonary edema and systemic bleeding; the severity was dependent on the level of hemozoin deposition in the lung and internal alveolar hemorrhaging...
2017: PloS One
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