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Inflammation

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https://www.readbyqxmd.com/read/29911276/anti-inflammatory-drug-dexamethasone-treatment-during-the-remobilization-period-improves-range-of-motion-in-a-rat-knee-model-of-joint-contracture
#1
Akinori Kaneguchi, Junya Ozawa, Kaoru Yamaoka
Joint inflammation following remobilization is an important factor in the progression of arthrogenic contracture. We evaluated the effects of an anti-inflammatory treatment during the remobilization period of recovery after joint immobilization in rats. Three groups of rats had their right knee joints immobilized for 3 weeks using an external fixator at a flexion of 140° to generate flexion contracture. Next, the fixation device was removed, allowing immobilized knees to freely move again for 1 or 7 days...
June 18, 2018: Inflammation
https://www.readbyqxmd.com/read/29911275/inflammation-induced-epithelial-to-mesenchymal-transition-and-gm-csf-treatment-stimulate-mesenteric-mesothelial-cells-to-transdifferentiate-into-macrophages
#2
Sándor Katz, Viktória Zsiros, Nikolett Dóczi, Anna L Kiss
In our previous work, we showed that during inflammation-induced epithelial-to-mesenchymal transition (EMT), mesenteric mesothelial cells express ED1 (pan-macrophage marker), indicating that they are transformed into macrophage-like cells. In this paper, we provide additional evidences about this transition by following the phagocytic activity and the TNFα production of mesenteric mesothelial cells during inflammation. Upon injection of India ink particles or fluorescent-labeled bioparticles (pHrodo) into the peritoneal cavity of rats pretreated with Freund's adjuvant, we found that mesothelial cells efficiently engulfed these particles...
June 18, 2018: Inflammation
https://www.readbyqxmd.com/read/29907905/socs-1-suppresses-inflammation-through-inhibition-of-nalp3-inflammasome-formation-in-smoke-inhalation-induced-acute-lung-injury
#3
Leifang Zhang, Chenming Xu, Xiaoming Chen, Qiwen Shi, Weike Su, Hang Zhao
Smoke inhalation leads to acute lung injury (ALI), a devastating clinical problem associated with high mortality rates. Suppressor of cytokine signaling-1 (SOCS-1) is a negative regulator of proinflammatory cytokine signaling. We have found that adenoviral gene transfer of SOCS-1 ameliorates smoke inhalation-induced lung injury in C57BL/6 mice. We also found that the release of adenosine triphosphate (ATP) was increased post smoke exposure, while oxidized ATP, an inhibitor of purinergic P2X7 receptor, suppressed smoke-induced NALP3 inflammasome assembly, caspase-1 activation, and K+ efflux...
June 16, 2018: Inflammation
https://www.readbyqxmd.com/read/29846855/microenvironment-of-immune-cells-within-the-visceral-adipose-tissue-sensu-lato-vs-epicardial-adipose-tissue-what-do-we-know
#4
REVIEW
Martin Klein, Ivan Varga
The chronic low-grade inflammation of the visceral adipose tissue is now fully established as one of the main contributors to metabolic disorders such as insulin resistance, subsequently leading to metabolic syndrome and other associated cardiometabolic pathologies. The orchestration of immune response and the "ratio of responsibility" of different immune cell populations have been studied extensively over the last few years within the visceral adipose tissue in general sense (sensu lato). However, it is essential to clearly distinguish different types of visceral fat distribution...
May 30, 2018: Inflammation
https://www.readbyqxmd.com/read/29804189/anti-inflammatory-effect-of-somatostatin-analogue-octreotide-on-rheumatoid-arthritis-synoviocytes
#5
Claudia Casnici, Donatella Lattuada, Katia Crotta, Marcello Claudio Truzzi, Costantino Corradini, Francesca Ingegnoli, Noemi Tonna, Fabio Bianco, Ornella Marelli
Somatostatin and its analogues are known to have modulatory effects on immune response and their anti-proliferative, anti-angiogenic, and analgesic properties make them attractive candidates for a therapeutic use in immune-mediated diseases, such as rheumatoid arthritis. Here, we demonstrate the ability of the somatostatin analogue octreotide to inhibit interleukin-15 and to increase interleukin-10 production by rheumatoid arthritis fibroblast-like synovial cells maintained in a chronic inflammatory state. We also prove that the inhibitory effect of octreotide on interleukin-15 and tumor necrosis factor-α production depended on the increase in interleukin-10, since neutralizing anti-interleukin-10 antibody was able to partially reverse this inhibition...
May 26, 2018: Inflammation
https://www.readbyqxmd.com/read/29804188/neutrophils-as-a-potential-source-of-chitinase-3-like-protein-1-in-cystic-fibrosis
#6
Adèle Coriati, Chantal Massé, Aurélie Ménard, Guillaume F Bouvet, Yves Berthiaume
The chitinase-3-like protein 1, also known as YKL-40, is an inflammatory marker increased in blood of patients with cystic fibrosis (CF). Systemic levels of YKL-40 are increased in dysglycemic patients with CF. Our objective is to determine if YKL-40 is expressed and released by CF neutrophils. We also assessed if specific stimulus, such as glucose and lipopolysaccharide (LPS), can induce the secretion of YKL-40. Neutrophil cells of healthy adults and patients with CF were isolated. Immunostaining of whole blood and neutrophils was done...
May 26, 2018: Inflammation
https://www.readbyqxmd.com/read/29785588/sam68-promotes-invasion-migration-and-proliferation-of-fibroblast-like-synoviocytes-by-enhancing-the-nf-%C3%AE%C2%BAb-p65-pathway-in-rheumatoid-arthritis
#7
Weiwei Sun, Rongqin Qin, Rui Wang, Dazhi Ding, Zhaohui Yu, Yuxi Liu, Ruilong Hong, Zhen Cheng, Youhua Wang
Src-associated substrate during mitosis of 68 KDa (Sam68), also known as KH domain containing, RNA binding, signal transduction associated 1 (KHDRBS1), is the prototypic member of the signal transduction activator of RNA (STAR) family of RNA-binding proteins. Previous studies have indicated that Sam68 regulates nuclear transcription factor kappa B (NF-κB) to mediate inflammation. In this study, we analyzed the effect and possible mechanisms of Sam68 in rheumatoid arthritis (RA). By western blot analysis and immunohistochemistry, we found that the expression of Sam68 in synovial tissue of RA patients was increased compared with the control group...
May 21, 2018: Inflammation
https://www.readbyqxmd.com/read/29779167/mir-199b-5p-regulates-immune-mediated-allograft-rejection-after-lung-transplantation-through-the-gsk3%C3%AE-and-nf-%C3%AE%C2%BAb-pathways
#8
Linhai Zhu, Haichao Xu, Wang Lv, Zhehao He, Peng Ye, Yiqing Wang, Jian Hu
Emerging evidence indicates that acute rejection mainly associated with the inflammatory response is an independent risk factor for chronic rejection after lung transplantation. Monocytes are the main pro-inflammatory leukocytes infiltrating around the lesions and play vital roles in triggering the acute rejection. In the rat lung transplantation model, lipopolysaccharide (LPS)-induced severe acute rejection was strongly associated with advanced chronic rejection. The exact regulatory mechanism of pro-inflammation in monocytes is not yet clear...
May 19, 2018: Inflammation
https://www.readbyqxmd.com/read/29766401/penehyclidine-hydrochloride-decreases-pulmonary-microvascular-endothelial-inflammatory-injury-through-a-beta-arrestin-1-dependent-mechanism
#9
Fei Zheng, Fei Xiao, Qing-Hong Yuan, Qiang-Sheng Liu, Zong-Ze Zhang, Yan-Lin Wang, Jia Zhan
Penehyclidine hydrochloride (PHC), a type of hyoscyamus drug, has both antimuscarinic and antinicotinic activities and retains potent central and peripheral anticholinergic activities. Compared with other hyoscyamine, the notable advantage of PHC is that it has few M2 receptor-associated cardiovascular side effects. Recent studies and clinical trials have suggested that treatment with penehyclidine hydrochloride may also possess good effects in the treatment of lung injury. The mechanism responsible for this effect has yet to be determined; however, one possibility is that they might do so by a direct effect on pulmonary vascular endothelium...
May 15, 2018: Inflammation
https://www.readbyqxmd.com/read/29748730/corynoline-exhibits-anti-inflammatory-effects-in-lipopolysaccharide-lps-stimulated-human-umbilical-vein-endothelial-cells-through-activating-nrf2
#10
Bin Liu, Kai Su, Jiaxin Wang, Jingjing Wang, Zhuoyuan Xin, Fan Li, Yunhe Fu
Corynoline, a bioactive compound isolated from Corydalis bungeana Turcz., has been known to have anti-inflammatory activity. However, its effects on the inflammation of the cardiovascular system have not been reported yet. The aim of this study was to investigate the anti-inflammatory effects of corynoline on lipopolysaccharide (LPS)-stimulated human umbilical vein endothelial cells (HUVECs). The results showed that LPS significantly increased the expression of VCAM-1 and ICAM-1. The production of cytokines TNF-α and IL-8 was also up-regulated by LPS...
May 11, 2018: Inflammation
https://www.readbyqxmd.com/read/29748729/saikosaponin-a-inhibits-lps-induced-endometritis-in-mice-through-activating-nrf2-signaling-pathway
#11
Jing Wang, Weiwei Wang, Yongtao Pang
Saikosaponin A (SSA) is the major triterpenoid glycoside isolated from Bupleurum falcatum. In this study, we reported the protective effects and mechanism of SSA on lipopolysaccharide (LPS)-induced endometritis in mice. The pathological changes and myeloperoxidase (MPO) activity of uterus tissues were evaluated by hematoxylin and eosin (H&E) staining and MPO detection kit. Inflammatory cytokines TNF-α, IL-1ß, and IL-6 production were detected by ELISA. The expression of protein was measured by western blot analysis...
May 10, 2018: Inflammation
https://www.readbyqxmd.com/read/29737477/cyclic-tensile-strain-upregulates-pro-inflammatory-cytokine-expression-via-fak-mapk-signaling-in-chondrocytes
#12
Makoto Yanoshita, Naoto Hirose, Yuki Okamoto, Chikako Sumi, Mami Takano, Sayuri Nishiyama, Yuki Asakawa-Tanne, Kayo Horie, Azusa Onishi, Yuka Yamauchi, Tomomi Mitsuyoshi, Ryo Kunimatsu, Kotaro Tanimoto
Excessive mechanical stimulation is considered an important factor in the destruction of chondrocytes. Focal adhesion kinase (FAK) is non-receptor tyrosine kinase related to a number of different signaling proteins. Little is known about the function of FAK in chondrocytes under mechanical stimulation. In the present study, we investigated the function of FAK in mechanical signal transduction and the mechanism through which cyclic tensile strain (CTS) induces expression of inflammation-related factors. Mouse ATDC5 chondrogenic cells were subjected to CTS of 0...
May 8, 2018: Inflammation
https://www.readbyqxmd.com/read/29737476/differential-effects-of-brain-death-on-rat-microcirculation-and-intestinal-inflammation-female-versus-male
#13
Sueli Gomes Ferreira, Roberto Armstrong-Jr, Guilherme Konishi Kudo, Cristiano de Jesus Correia, Sabrina Thalita Dos Reis, Paulina Sannomiya, Ana Cristina Breithaupt-Faloppa, Luiz Felipe Pinho Moreira
Brain death (BD) affects organs by multiple mechanisms related to hemodynamic effects, hormonal changes, and the systemic inflammatory response, which reduce organ function and viability. BD reduces microcirculatory perfusion in rat mesentery; this disturbance is also observed in the pancreas and lungs. Sex hormones can affect microcirculatory function, altering tissue perfusion and influencing the inflammatory process. Here, we present differences between sexes in the microcirculatory alterations generated by BD and in inflammatory infiltrate...
May 8, 2018: Inflammation
https://www.readbyqxmd.com/read/29737475/effect-of-a-stellate-ganglion-block-on-acute-lung-injury-in-septic-rats
#14
Yong Chen, Lian Guo, Haili Lang, Xiaolan Hu, Sun Jing, Mengsi Luo, Guohai Xu, Zhidong Zhou
A stellate ganglion block (SGB) is a clinical sympathetic block which can inhibit the body systemic inflammatory response. However, whether and how SGB can attenuate the sepsis-induced acute lung injury remains unclear. Here, we evaluated the effect of SGB on sepsis-induced acute lung injury in rats. Ninety healthy Sprague Dawley (SD) male rats were divided into three groups: the sham operation group (S group), sepsis group (Sep group), and SGB group. The sepsis model rats were produced by cecum ligation and puncture (CLP), and blood samples were taken from the abdominal aorta of the rats at different time points for evaluating the concentration of TNF-α, IL-6, and IL-10 by enzyme-linked immunosorbent assay (ELISA)...
May 8, 2018: Inflammation
https://www.readbyqxmd.com/read/29736733/paeonol-reduces-the-nucleocytoplasmic-transportation-of-hmgb1-by-upregulating-hdac3-in-lps-induced-raw264-7-cells
#15
Qin Xu, Xia Liu, Liyan Mei, Quan Wen, Jing Chen, Jifei Miao, Hang Lei, Huina Huang, Dongfeng Chen, Shaohui Du, Aijun Liu, Saixia Zhang, Jianhong Zhou, Rudong Deng, Yiwei Li, Chun Li, Hui Li
Extracellular high mobility group box 1 (HMGB1) is a lethal pro-inflammatory mediator in endotoxin shock. Hyperacetylation of HMGB1, regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs), changes its subcellular localization and secretion to the extracellular matrix. Paeonol (2'-hydroxy-4'-methoxyacetophenone), one of the main active components of Paeonia suffruticosa, exerts anti-inflammatory effects. Our previous study demonstrated that Paeonol inhibited the relocation and secretion of HMGB1 in lipopolysaccharide (LPS)-activated RAW264...
May 7, 2018: Inflammation
https://www.readbyqxmd.com/read/29730819/artesunate-inhibits-renal-ischemia-reperfusion-mediated-remote-lung-inflammation-through-attenuating-ros-induced-activation-of-nlrp3-inflammasome
#16
Zhaohui Liu, Min Qu, Lili Yu, Panpan Song, Yulin Chang
The molecular mechanisms of acute lung injury (ALI) are closely associated with nucleotide-binding domains and leucine-rich repeat (NLR) pyrin domains containing 3 (NLRP3) inflammasome, in which alveolar macrophages (AMs) exert an essential function. Our study has been proved that artesunate (AS) inhibits ALI. Nevertheless, the inhibition actions of AS on activation of NLRP3 in renal ischemia-reperfusion (RIR)-mediated ALI remain to be further discussed. Male Sprague-Dawley rats were randomly assigned into four groups: sham + NS, sham + AS, RIR + NS, and RIR + AS...
May 5, 2018: Inflammation
https://www.readbyqxmd.com/read/29728805/large-volume-crystalloid-fluid-is-associated-with-increased-hyaluronan-shedding-and-inflammation-in-a-canine-hemorrhagic-shock-model
#17
Lisa Smart, C J Boyd, M A Claus, E Bosio, G Hosgood, A Raisis
Shedding of the endothelial glycocalyx precedes leukocyte activation and adherence in acute inflammation. Rapid administration of crystalloid or colloid fluids for treating hemorrhagic shock may cause endothelial glycocalyx shedding, thereby increasing inflammation. This study aimed to compare the effect of different fluid treatments in a canine shock model on glycocalyx biomarker, hyaluronan, and inflammatory biomarkers. Greyhound dogs under general anesthesia subject to hemorrhage for 60 min were given 20 mL kg-1 of either fresh whole blood (FWB), hydroxyethyl starch (HES) 130/0...
May 4, 2018: Inflammation
https://www.readbyqxmd.com/read/29728804/sphk-2-promotes-the-particle-induced-inflammation-of-raw264-7-by-maintaining-consistent-expression-of-tnf-%C3%AE-and-il-6
#18
Guangpu Yang, Minghui Gu, Weishen Chen, Wenhua Liu, Yinbo Xiao, Haixing Wang, Weiming Lai, Guoyan Xian, Ziji Zhang, Ziqing Li, Puyi Sheng
Aseptic implant loosening is a devastating long-term complication of total joint arthroplasty. It is mainly initiated by the interaction of wear debris and macrophages. However, how does the chronic inflammation persist and how to stop it is poorly understood. Sphingosine kinases (SPHKs) are an essential feature of immunosuppressive M2 polarisation in macrophages and a promoter for chronic inflammation. In this study, RAW 264.7 macrophages were exposed to stimulation with titanium particles (0.1 mg/ml), and the subsequent expression of SPHKs and pro-inflammatory cytokines was evaluated...
May 4, 2018: Inflammation
https://www.readbyqxmd.com/read/29717387/%C3%AE-4galt1-mediates-ppar%C3%AE-n-glycosylation-to-attenuate-microglia-inflammatory-activation
#19
Xiaojuan Liu, Aihong Li, Yuanyuan Ju, Wangrui Liu, Hui Shi, Renyue Hu, Zijian Zhou, Xiaolei Sun
The inflammatory activation of microglia has double-edged effects in central nervous system (CNS) diseases. The ligand-activated transcriptional factor peroxisome proliferator-activated receptor γ (PPARγ) inhibits the inflammatory response. β-1,4-Galactosyltransferase Ι (β1, 4GalT1) mediates N-glycosylation. In this study, the N-glycosylation of PPARγ, as well as two N-linked glycosylation sites in its DNA binding domain (DBD), was identified. Disruption of both sites by site-directed mutagenesis completely abrogated the N-glycosylation of PPARγ...
May 1, 2018: Inflammation
https://www.readbyqxmd.com/read/29704151/extracellular-matrix-remodeling-and-modulation-of-inflammation-and-oxidative-stress-by-sulforaphane-in-experimental-diabetic-peripheral-neuropathy
#20
Passant E Moustafa, Noha F Abdelkader, Sally A El Awdan, Osama A El-Shabrawy, Hala F Zaki
The peripheral nervous system is one of many organ systems that can be profoundly impacted in diabetes mellitus. Diabetic peripheral neuropathy has a significant negative effect on patients' quality of life as it begins with loss of limbs' sensation and may result in lower limb amputation. This investigation aimed at exploring the effect of sulforaphane on peripheral neuropathy in diabetic rats. Experimental diabetes was induced through single intraperitoneal injections of nicotinamide (50 mg/kg) and streptozotocin (52...
April 27, 2018: Inflammation
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