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https://www.readbyqxmd.com/read/29792697/association-of-type-2-diabetes-with-submicron-titanium-dioxide-crystals-in-the-pancreas
#1
Adam Heller, Karalee Jarvis, Sheryl S Coffman
Pigment-grade titanium dioxide (TiO2) of 200-300 nm particle diameter is one of the most widely used submicron-sized particle materials. Inhaled and ingested TiO2 particles are known to enter the bloodstream, to be phagocytized by macrophages and neutrophils, to be inflammatory, and to activate the NLRP3 inflammasome. In this pilot study of 11 pancreatic specimens, 8 of the type 2 diabetic pancreas and 3 of the non-diabetic pancreas, we show that 110±70 nm average diameter TiO2 crystals abound in the type 2 diabetic pancreas, but not in the non-diabetic pancreas...
May 24, 2018: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/29792579/effects-of-essential-oil-from-thymus-vulgaris-on-viability-and-inflammation-in-zebrafish-embryos
#2
Katherine M Polednik, Abby C Koch, Lisa K Felzien
Innate immunity provides the initial response against pathogens and includes the inflammatory response. Regulation of the initiation and duration of neutrophil and mononuclear cell influx during inflammation determines both the successfulness of pathogen elimination and the level of resulting tissue damage. Zebrafish embryos provide excellent opportunities to visualize the inflammatory response. Neutrophil granules may be stained with Sudan black, and variation in neutrophil counts may be used to monitor the level of the response...
May 24, 2018: Zebrafish
https://www.readbyqxmd.com/read/29792394/concomitant-administration-of-candesartan-cilexetil-in-patients-on-paclitaxel-and-carboplatin-combination-therapy-increases-risk-of-severe-neutropenia
#3
Yurie Katsube, Daiki Hira, Masayuki Tsujimoto, Hiroyoshi Koide, Tetsuya Minegaki, Yoshito Ikeda, Shin-Ya Morita, Kohshi Nishiguchi, Tomohiro Terada
OBJECTIVE: Angiotensin receptor blockers (ARBs) are often used in patients on paclitaxel (PTX) and carboplatin combination (TC) therapy to treat hypertension caused by the co-administration of bevacizumab. The aim of this retrospective study was to analyze the association between co-administration of ARBs and the development of severe neutropenia in patients on TC therapy. MATERIALS AND METHODS: In this study, 211 concomitant medications were prescribed to 173 patients on TC therapy...
May 24, 2018: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29792391/role-of-neutrophils-in-equine-asthma
#4
Benjamin Uberti, Gabriel Morán
Neutrophilic bronchiolitis is the primary lesion in asthma-affected horses. Neutrophils are key actors in host defense, migrating toward sites of inflammation and infection, where they act as early responder cells toward external insults. However, neutrophils can also mediate tissue damage in various non-infectious inflammatory processes. Within the airways, these cells likely contribute to bronchoconstriction, mucus hypersecretion, and pulmonary remodeling by releasing pro-inflammatory mediators, including the cytokines interleukin (IL)-8 and IL-17, neutrophil elastase, reactive oxygen species (ROS), and neutrophil extracellular traps (NETs)...
May 24, 2018: Animal Health Research Reviews
https://www.readbyqxmd.com/read/29792386/disparate-effects-of-shb-gene-deficiency-on-disease-characteristics-in-murine-models-of-myeloid-b-cell-and-t-cell-leukemia
#5
Maria Jamalpour, Xiujuan Li, Karin Gustafsson, Jeffrey W Tyner, Michael Welsh
The Src homology-2 domain protein B is an adaptor protein operating downstream of tyrosine kinases. The Shb gene knockout has been found to accelerate p210 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced leukemia. In human myeloid leukemia were tumors with high Src homology-2 domain protein B mRNA content, tumors were, however, associated with decreased latency and myeloid leukemia exhibiting immune cell characteristics. Thus, the aim of this study was to investigate the effects of Shb knockout on the development of leukemia in three additional models, that is, colony stimulating factor 3 receptor-T618I-induced neutrophilic leukemia, p190 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced B-cell leukemia, and G12D-Kras-induced T-cell leukemia/thymic lymphoma...
April 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29792201/cerium-dioxide-nanoparticles-exacerbate-house-dust-mite-induced-type-ii-airway-inflammation
#6
Kirsty Meldrum, Sarah B Robertson, Isabella Römer, Tim Marczylo, Lareb S N Dean, Andrew Rogers, Timothy W Gant, Rachel Smith, Terry D Tetley, Martin O Leonard
BACKGROUND: Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2 NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2 NPs in a house dust mite (HDM) induced murine model of asthma. RESULTS: Repeated intranasal instillation of CeO2 NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia...
May 23, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29792200/wedge-shaped-microfluidic-chip-for-circulating-tumor-cells-isolation-and-its-clinical-significance-in-gastric-cancer
#7
Chaogang Yang, Nangang Zhang, Shuyi Wang, Dongdong Shi, Chunxiao Zhang, Kan Liu, Bin Xiong
BACKGROUND: Circulating tumor cells (CTCs) have great potential in both basic research and clinical application for the managements of cancer. However, the complicated fabrication processes and expensive materials of the existing CTCs isolation devices, to a large extent, limit their clinical translation and CTCs' clinical value. Therefore, it remains to be urgently needed to develop a new platform for achieving CTCs detection with low-cost, mass-producible but high performance. METHODS: In the present study, we introduced a novel wedge-shaped microfluidic chip (named CTC-ΔChip) fabricated by two pieces of glass through wet etching and thermal bonding technique for CTCs isolation, which achieved CTCs enrichment by different size without cell surface expression markers and CTCs identification with three-color immunocytochemistry method (CK+/CD45-/Nucleus+)...
May 23, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29792176/anti-neutrophil-cytoplasmic-antibody-associated-glomerulonephritis-with-detection-of-myeloperoxidase-and-phospholipase-a-2-receptor-in-membranous-nephropathy-lesions-report-of-two-patients-with-microscopic-polyangiitis
#8
Kenta Tominaga, Takahiro Uchida, Toshihiko Imakiire, Kenji Itoh, Hideyuki Shimazaki, Kuniaki Nakanishi, Hiroo Kumagai, Naoki Oshima
BACKGROUND: Podocyte phospholipase A2 receptor (PLA2 R) is a major target antigen in idiopathic adult membranous nephropathy (MN). Histological PLA2 R staining in the renal tissue has proven to be useful for the detection of idiopathic MN. However, glomerular PLA2 R deposits have also been recently observed in several patients with secondary MN, such as hepatitis B virus-associated, hepatitis C virus-associated, and neoplasm-associated MN. Certain inflammatory environments have been suggested to lead to abnormal expression of PLA2 R epitopes, with the resulting production of PLA2 R autoantibodies...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29792062/analysis-of-the-blood-viscosity-behavior-in-the-sicilian-study-on-juvenile-myocardial-infarction
#9
Gregorio Caimi, Eugenia Hopps, Maria Montana, Giuseppe Andolina, Caterina Urso, Baldassare Canino, Rosalia Lo Presti
Considering the role of hemorheology in coronary circulation, we studied blood viscosity in patients with juvenile myocardial infarction. We examined whole blood viscosity at high shear rate using the cone-on-plate viscosimeter Wells-Brookfield ½ LVT and at low shear rate employing a viscometer Contraves LS30 in 120 patients (aged <46 years) with myocardial infarction, at the initial stage and subsequently 3 and 12 months after. At the initial stage, patients had an increased whole blood viscosity in comparison to normal controls...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29791907/toll-like-receptor-3-signaling-contributes-to-regional-neutrophil-recruitment-in-cultured-human-glomerular-endothelial-cells
#10
Qiang Liu, Tadaatsu Imaizumi, Shogo Kawaguchi, Tomomi Aizawa, Tomoh Matsumiya, Shojiro Watanabe, Koji Tsugawa, Hidemi Yoshida, Kazushi Tsuruga, Kensuke Joh, Hiroshi Kijima, Hiroshi Tanaka
BACKGROUND: Given the importance of neutrophil recruitment in the pathogenesis of glomerulonephritis (GN), the representative neutrophil chemoattractant C-X-C motif chemokine 1 (CXCL1)/GROα and the adhesion molecule E-selectin in glomerular endothelial cells (GECs) play a pivotal role in the development of GN. Endothelial Toll-like receptor 3 (TLR3) is thought to be involved in the inflammatory response via innate immunity. However, the role of endothelial TLR3 signaling in the expression of neutrophil chemoattractants and adhesion molecules remains to be elucidated...
May 23, 2018: Nephron
https://www.readbyqxmd.com/read/29791847/neutrophils-provide-a-favorable-il-1-mediated-immunometabolic-niche-that-primes-glut4-translocation-and-performance-in-skeletal-muscles
#11
Masahiro Tsuchiya, Shigenori Sekiai, Hiroyasu Hatakeyama, Masashi Koide, Chayanit Chaweewannakorn, Fukie Yaoita, Koichi Tan-No, Keiichi Sasaki, Makoto Watanabe, Shunji Sugawara, Yasuo Endo, Eiji Itoi, Yoshihiro Hagiwara, Makoto Kanzaki
Metabolic immunomodulation involving IL-1 has been investigated for unfavorable metabolic effects, including obesity, but a potentially favorable role for IL-1 remains unclear. Here, we find mechanistic interactions between working skeletal muscles and locally recruited neutrophils expressing IL-1β, which supports muscle performance through priming exercise-dependent GLUT4 translocation. Thus, during exercise, both IL-1α/β-deficient and neutrophil-depleted mice similarly exhibit increased fatigability associated with impaired muscle glucose homeostasis due to GLUT4 dysregulation...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29791495/early-prediction-of-contrast-induced-acute-kidney-injury-by-a-bedside-assessment-of-neutrophil-gelatinase-associated-lipocalin-during-elective-percutaneous-coronary-interventions
#12
Annunziata Nusca, Marco Miglionico, Claudio Proscia, Laura Ragni, Massimiliano Carassiti, Francesca Lassandro Pepe, Germano Di Sciascio
Contrast-induced acute kidney injury (CI-AKI) is a serious complication during percutaneous coronary interventions (PCI). Currently, the diagnosis of CI-AKI relies on serum creatinine (SCr) that is however affected by several limitations potentially leading to delayed or missed diagnoses. In this study we examined the diagnostic accuracy of a "bedside" measurement of plasma Neutrophil Gelatinase-Associated Lipocalin (NGAL) in the early detection of CI-AKI in 97 patients undergoing elective PCI. The overall incidence of CI-AKI was 3%...
2018: PloS One
https://www.readbyqxmd.com/read/29791477/functional-characterization-of-oxazolone-induced-colitis-and-survival-improvement-by-vagus-nerve-stimulation
#13
Elisa Meroni, Nathalie Stakenborg, Pedro J Gomez-Pinilla, Gert De Hertogh, Gera Goverse, Gianluca Matteoli, Simon Verheijden, Guy E Boeckxstaens
BACKGROUND: Oxazolone-induced colitis has been frequently used in literature as a model of IBD, but insights into the underlying immune response and pathological features are surprisingly still very limited. Vagus nerve stimulation (VNS) has proven to be effective in innate and Th1/Th17 predominant inflammatory models, including pre-clinical models of colitis, however to what extent VNS is also effective in ameliorating Th2-driven colitis remains to be studied. In the present study, we therefore further characterized the immune response in oxazolone-induced colitis and investigated the potential therapeutic effect of VNS...
2018: PloS One
https://www.readbyqxmd.com/read/29791241/neutrophil-mediated-delivery-of-pixantrone-loaded-liposomes-decorated-with-poly-sialic-acid-octadecylamine-conjugate-for-lung-cancer-treatment
#14
Xiang Luo, Ling Hu, Huangliang Zheng, Mingqi Liu, Xinrong Liu, Cong Li, Qiujun Qiu, Zitong Zhao, Xiaobo Cheng, Chaoyang Lai, Yuqing Su, Yihui Deng, Yanzhi Song
Poly(sialic acid) (PSA) is a natural hydrophilic biodegradable and non-immunogenic biopolymer, receptors for its monomer are expressed on peripheral blood neutrophils (PBNs), which plays important roles in the progression and invasion of tumors. A poly(sialic acid)-octadecylamine conjugate (PSA-ODA) was synthesized and then anchor it on the surface of liposomal pixantrone (Pix-PSL), to achieve an improved anticancer effect. The liposomes were prepared using a remote loading method via a pH gradient, and then assessed for particle size, zeta potential encapsulation efficiency, in vitro release, and in vitro cytotoxicity...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29791209/binding-of-intercellular-adhesion-molecule-1-to-%C3%AE-2-integrin-regulates-distinct-cell-adhesion-on-hepatic-and-cerebral-endothelium
#15
Chun-Fang Tong, Yan Zhang, Shou-Qin Lü, Ning Li, Yi-Xin Gong, Hao Yang, Shi-Liang Feng, Yu Du, Dan-Dan Huang, Mian Long
Flowing neutrophils (PMNs) are forced to recruit towards inflamed tissue and adhere on vascular endothelial cells, which is primarily mediated by the binding of β2 -integrins to ICAM-1s. This process is distinct among different organs such as liver and brain, however, the underlying kinetic and mechanical mechanisms regulating tissue-specific recruitment of PMNs remain unclear. Here binding kinetics measurement showed that, ICAM-1 on murine hepatic sinusoidal endothelial cells (LSECs) bound to lymphocyte function-associated antigen-1 (LFA-1) with higher on- and off-rates but lower effective affinity compared to macrophage-1 antigen (Mac-1), while ICAM-1 on cerebral endothelial cells (BMECs or bEnd...
May 23, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29790924/typhoidal-salmonella-serovars-ecological-opportunity-and-the-evolution-of-a-new-pathovar
#16
Hirotaka Hiyoshi, Connor R Tiffany, Denise N Bronner, Andreas J Bäumler
Typhoid and paratyphoid fever are severe systemic infections caused by human-adapted typhoidal Salmonella serovars that are indistinguishable in their clinical presentation, but differ from human gastroenteritis caused by zoonotic non-typhoidal Salmonella serovars. Typhoidal Salmonella serovars evolved from ancestral gastrointestinal pathogens through genetic changes that supported a change in pathogen ecology. Typhoidal Salmonella serovars share virulence properties that were acquired through convergent evolution and therefore this group is not defined by the presence of shared virulence genes that are absent from non-typhoidal Salmonella serovars...
May 21, 2018: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/29790808/comparison-of-time-to-engraftment-between-autologous-patients-receiving-washed-versus-non-washed-cryopreserved-peripheral-blood-stem-cell-products
#17
Ronit Reich-Slotky, Sarah S Makhani, Ljiljana V Vasovic, Roger N Pearse, Adriana Rossi, Adrianne Philips, Melissa M Cushing, Amrita D Singh, Koen van-Besien
Washing cryopreserved peripheral blood stem cell (PBSC) products can decrease infusion-related adverse reactions but can also result in cell loss and reduced cell viability. To assess the risk and benefit of washing products, we compared the time to neutrophil and platelet engraftment between autologous patients that received washed products (n = 201) and non-washed products (n = 89). The effect of the other variables, including age, gender, diagnosis, transplant dose, method of stem cell mobilization, and growth factor support regimen post-transplant, was assessed...
May 23, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29790796/in-vitro-coagulation-triggers-anti-aspergillus-fumigatus-neutrophil-response
#18
Emilie Fréalle, Philippe Gosset, Sophie Leroy, Claire Delattre, Agnès Wacrenier, Christoph Zenzmaier, Christophe Zawadzki, El Moukhtar Aliouat, Susanne Perkhofer
AIM: To explore Aspergillus interactions with platelets in the blood, especially during clot formation. MATERIALS & METHODS: Aspergillus fumigatus resting or swollen conidia, germlings or hyphae were inoculated into blood sampled into tubes with or without anticoagulant. Interactions were explored using microscopy, and chemokine levels were determined. RESULTS: Anatomopathological examination of the clot revealed conidia and germlings colocalization with platelet aggregates, and neutrophil recruitment around aggregates...
May 23, 2018: Future Microbiology
https://www.readbyqxmd.com/read/29790457/comparison-of-different-conditioning-regimens-of-haploidentical-hematopoietic-stem-cell-transplant-in-patients-with-acute-myeloid-leukemia
#19
Yujie Jiang, Xiaosheng Fang, Xiaohui Sui, Xin Liu, Ying Li, Xianghua Wang, Hongzhi Xu, Lingyan Zhang, Xin Wang
OBJECTIVES: We evaluated the safety and efficacy of 2 conditioning regimens (busulfan/fludarabine vs modified busulfan/cyclophosphamide) in patients with acute myeloid leukemia undergoing haploidentical hematopoietic stem cell transplant. MATERAILS AND METHODS: Twenty patients with primary acute myeloid leukemia had been randomized into busulfan/fludarabine and modified busulfan/cyclophosphamide groups. We retrospectively compared hematopoietic engraftment, regimen-related toxicity, graft-versus-host disease, transplant-related mortality, leukemia-free survival, and overall survival between the groups...
May 23, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29790392/interleukin-1-receptor-il-1r1-activation-exacerbates-toxin-induced-acute-kidney-injury
#20
Jamie R Privratsky, Jiandong Zhang, Xiaohan Lu, Nathan Rudemiller, Qingqing Wei, Yen-Rei Yu, Michael Dee Gunn, Steven D Crowley
Acute kidney injury (AKI) is a leading cause of morbidity and mortality. Cisplatin is an effective chemotherapeutic agent whose administration is limited by nephrotoxicity. Therapies to prevent cisplatin-induced AKI are lacking. While tumor necrosis factor-α (TNF) plays a key role in the pathogenesis of cisplatin nephrotoxicity, the immune signaling pathways that trigger TNF generation in this context require elucidation. Sterile injury triggers the release and activation of both isoforms of interleukin(IL)-1, IL-1α and IL-1β, and stimulation of the interleukin-1 receptor (IL-1R1) by these ligands engages a pro-inflammatory signaling cascade that induces TNF induction...
May 23, 2018: American Journal of Physiology. Renal Physiology
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