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macrophage activation syndrome

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https://www.readbyqxmd.com/read/29783158/pirfenidone-ameliorates-lipopolysaccharide-induced-pulmonary-inflammation-and-fibrosis-by-blocking-nlrp3-inflammasome-activation
#1
Yi Li, Haitao Li, Shuai Liu, Pinhua Pan, Xiaoli Su, Hongyi Tan, Dongdong Wu, Lemeng Zhang, Chao Song, Minhui Dai, Qian Li, Zhi Mao, Yuan Long, Yongbin Hu, Chengping Hu
Acute respiratory distress syndrome(ARDS)is a severe clinical disorder characterized by its acute onset, diffuse alveolar damage, intractable hypoxemia, and non-cardiogenic pulmonary edema. Acute lung injury(ALI) can trigger persistent lung inflammation and fibrosis through activation of the NLRP3 inflammasome and subsequent secretion of mature IL-1β, suggesting that the NLRP3 inflammasome is a potential therapeutic target for ALI, for which new therapeutic approaches are needed. Our present study aims to assess whether pirfenidone,with anti-fibrotic and anti-inflammatory properties, can improve LPS-induced inflammation and fibrosis by inhibiting NLRP3 inflammasome activation...
May 18, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29782390/suspecting-hyperferritinemic-sepsis-in-iron-deficient-population-do-we-need-a-lower-plasma-ferritin-threshold
#2
Swarup Ghosh, Arun K Baranwal, Prateek Bhatia, Karthi Nallasamy
OBJECTIVES: Hyperferritinemia is being suggested to identify patients with sepsis-induced macrophage activation syndrome for early intervention. However, data among iron-deficient children are scarce. This study was planned to explore the biological behavior of plasma ferritin in children from communities with a high frequency of iron deficiency with septic shock and its association with the outcome. DESIGN: Prospective observational study. SETTING: Tertiary care teaching hospital in a low-middle income economy of South Asia...
May 18, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29778503/autoinflammatory-mutation-in-nlrc4-reveals-an-lrr-lrr-oligomerization-interface
#3
Fiona Moghaddas, Ping Zeng, Yuxia Zhang, Heike Schützle, Sebastian Brenner, Sigrun R Hofmann, Reinhard Berner, Yuanbo Zhao, Bingtai Lu, Xiaoyun Chen, Li Zhang, Suyun Cheng, Stefan Winkler, Kai Lehmberg, Scott W Canna, Peter E Czabotar, Ian P Wicks, Dominic De Nardo, Christian M Hedrich, Huasong Zeng, Seth L Masters
BACKGROUND: Monogenic autoinflammatory disorders are characterised by dysregulation of the innate immune system, for example by gain-of-function mutations in inflammasome forming proteins such as NLRC4. OBJECTIVE: Here we investigate the mechanism by which a novel mutation in the leucine rich repeat (LRR) domain of NLRC4 (c.G1965C, p.W655C) contributes to autoinflammatory disease. METHODS: We studied two unrelated patients with early onset macrophage activation syndrome (MAS) harboring the same de novo mutation in NLRC4...
May 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29773270/systemic-juvenile-idiopathic-arthritis-new-insights-into-pathogenesis-and-cytokine-directed-therapies
#4
REVIEW
Manuela Pardeo, Claudia Bracaglia, Fabrizio De Benedetti
Systemic juvenile idiopathic arthritis (sJIA) is considered as a polygenic autoinflammatory disease. The prominent systemic clinical features, the marked elevation of inflammatory markers, and the absence of autoantibodies make this disease very different from the other juvenile idiopathic arthritis (JIA) forms. Innate immune mechanisms appear to play a central role: the overproduction of inflammatory cytokines of innate immunity is a typical feature of sJIA. Increased understanding of the role of these cytokines has been translated into therapeutic approaches...
August 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29766733/-hemophagocytic-lymfohistiocytosis-in-adults-review-and-case-report
#5
Jiří Šrámek, Thomas Karvunidis, Daniel Lysák, Martin Harazim, Michal Karas, Pavel Jindra
Hemophagocytic lymfohistiocytosis (HLH) is rare, life-threatening condition, characterized by excessive activation of immune system with subsequent proinflammatory state resulting in multiorgan failure. Most frequently, it appears in infancy as a primary disorder caused by mutation of immune-regulatory genes. Increasingly, HLH is being diagnosed as a secondary - adult - form, which occurs as a result of aberrant immune response. Viral or bacterial systemic infections, malignancy with a predominance of lymphoproliferative disorders and autoimmune diseases are the most common triggers...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29755364/early-effects-of-a-low-fat-fructose-rich-diet-on-liver-metabolism-insulin-signaling-and-oxidative-stress-in-young-and-adult-rats
#6
Raffaella Crescenzo, Luisa Cigliano, Arianna Mazzoli, Rosa Cancelliere, Rosa Carotenuto, Margherita Tussellino, Giovanna Liverini, Susanna Iossa
The increase in the use of refined food, which is rich in fructose, is of particular concern in children and adolescents, since the total caloric intake and the prevalence of metabolic syndrome are increasing continuously in these populations. Nevertheless, the effects of high fructose diet have been mostly investigated in adults, by focusing on the effect of a long-term fructose intake. Notably, some reports evidenced that even short-term fructose intake exerts detrimental effects on metabolism. Therefore, the aim of this study was to compare the metabolic changes induced by the fructose-rich diet in rats of different age, i...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29754152/brain-natriuretic-peptide-regulated-expression-of-inflammatory-cytokines-in-lipopolysaccharide-lps-activated-macrophages-via-nf-%C3%AE%C2%BAb-and-mitogen-activated-protein-kinase-mapk-pathways
#7
Xiong Li, Hao Peng, Jiongxing Wu, Yangcheng Xu
BACKGROUND This study aimed to investigate the effects of recombinant human brain natriuretic peptide (rhBNP) on IL-6, TNF-α, and IL-10 secretion in LPS-activated RAW 264.7 cells and human peripheral blood mononuclear cells (PBMCs) in vitro and to explore the related signaling pathways of the regulation mechanisms of BNP in systemic inflammatory response syndrome (SIRS). MATERIAL AND METHODS MTT assay was used to evaluate the effects of rhBNP on cell viabilities. Lipopolysaccharide (LPS) was used to induce inflammation response...
May 13, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29754142/cholestatic-jaundice-a-unique-presentation-leading-to-the-diagnosis-of-hlh-with-hodgkin-lymphoma-hiv-and-ebv
#8
Hira Shaikh, Soorih Shaikh, Amir Kamran, Prerna Mewawalla
Haemophagocytic lymphohistiocytosis (HLH) is a syndrome of dysregulated immune activity with macrophage activation that can manifest as pancytopenia, coagulopathy and other laboratory abnormalities, usually progressing to multiorgan failure and death. This report documents the rarely reported association between HLH and Hodgkin's lymphoma (HL) with simultaneous HIV and Epstein-Barr virus (EBV) and complete resolution with chemotherapy. The patient initially presented with cholestatic jaundice. He was then found to have HL associated with HLH with coexistent HIV and EBV viraemia...
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29747820/gangliosides-and-autoimmune-peripheral-nerve-diseases
#9
John A Goodfellow, Hugh J Willison
A wide range of neuroimmunological diseases, referred to as autoimmune neuropathies, affect the peripheral nervous systems (PNS). The PNS is structurally diverse with complex anatomical compartments enriched in many different myelin and neuronal glycolipids, notably gangliosides. Autoimmune neuropathies are a proportion of autoimmune neuropathies mediated by autoimmune attack due to antibodies reactive with these compartmentally localized gangliosides. Antiganglioside antibodies are principally associated with the acute paralytic disease, Guillain-Barré syndrome, and are also found in several chronic autoimmune neuropathy syndromes...
2018: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29742693/a-successful-treatment-of-severe-systemic-lupus-erythematosus-caused-by-occult-pulmonary-infection-associated-with-hemophagocytic-syndrome-a-case-report
#10
Weihong Shi, Mingyang Duan, Ligang Jie, Weifeng Sun
RATIONALE: A 27-year-old woman with a history of systemic lupus erythaematosus (SLE) developed hemophagocytic syndrome (HPS) secondary due to an unrecognized infection that led to severe SLE with a prolonged recovery. PATIENT CONCERNS: The patient showed a high spiking fever and myalgia. Laboratory data revealed pancytopenia and immunological abnormalities. Pulse methylprednisone plus intravenous immunoglobulin (IVIG) failed to improve the clinical symptoms and laboratory data...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29731256/antiretroviral-therapy-potentiates-high-fat-diet-induced-obesity-and-glucose-intolerance
#11
Mark E Pepin, Lindsey E Padgett, Ruth E McDowell, Ashley R Burg, Manoja K Brahma, Cassie Holleman, Teayoun Kim, David Crossman, Olaf Kutsch, Hubert M Tse, Adam R Wende, Kirk M Habegger
OBJECTIVE: Breakthroughs in HIV treatment, especially combination antiretroviral therapy (ART), have massively reduced AIDS-associated mortality. However, ART administration amplifies the risk of non-AIDS defining illnesses including obesity, diabetes, and cardiovascular disease, collectively known as metabolic syndrome. Initial reports suggest that ART-associated risk of metabolic syndrome correlates with socioeconomic status, a multifaceted finding that encompasses income, race, education, and diet...
April 20, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29729383/ameliorative-potential-of-lavandula-stoechas-in-metabolic-syndrome-via-multitarget-interactions
#12
S S Kulabas, H Ipek, A R Tufekci, S Arslan, I Demirtas, R Ekren, U Sezerman, T B Tumer
ETHNOPHARMACOLOGICAL IMPORTANCE: Decoction and infusion prepared from aerial parts of Lavandula stoechas L. (L. stoechas) have been traditionally used as remedy against several components of metabolic syndrome (MetS) and associated disorders including type II diabetes and cardiovascular diseases by Anatolian people. AIM OF THE STUDY: The aim is to elucidate the potential ameliorative effects of L. stoechas aqueous extracts on insulin resistance and inflammation models through multitarget in vitro approaches and also to elucidate mechanism of action by analyzing transcriptional and metabolic responses...
May 2, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29725611/fingolimod-associated-pml-with-mild-iris-in-ms-a-clinicopathologic-study
#13
Shuhei Nishiyama, Tatsuro Misu, Yukiko Shishido-Hara, Kazuo Nakamichi, Masayuki Saijo, Yoshiki Takai, Kentarou Takei, Naoki Yamamoto, Hiroshi Kuroda, Ryuta Saito, Mika Watanabe, Teiji Tominaga, Ichiro Nakashima, Kazuo Fujihara, Masashi Aoki
Objective: To clarify the clinical, neuropathologic, and virologic characteristics of progressive multifocal leukoencephalopathy (PML) and its immune reconstitution inflammatory syndrome (IRIS) in a patient with fingolimod-treated MS. Methods: A case study. Results: A 34-year-old patient with MS using fingolimod for 4 years had a gradual progression of right hemiparesis and aphasia with a new subcortical white matter lesion in the precentral gyrus by initial MRI...
January 2018: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29724730/metabolic-pathways-and-immunometabolism-in-rare-kidney-diseases
#14
Peter C Grayson, Sean Eddy, Jaclyn N Taroni, Yaíma L Lightfoot, Laura Mariani, Hemang Parikh, Maja T Lindenmeyer, Wenjun Ju, Casey S Greene, Brad Godfrey, Clemens D Cohen, Jeffrey Krischer, Matthias Kretzler, Peter A Merkel
OBJECTIVES: To characterise renal tissue metabolic pathway gene expression in different forms of glomerulonephritis. METHODS: Patients with nephrotic syndrome (NS), antineutrophil cytoplasmic antibody-associated vasculitis (AAV), systemic lupus erythematosus (SLE) and healthy living donors (LD) were studied. Clinically indicated renal biopsies were obtained at time of diagnosis and microdissected into glomerular and tubulointerstitial compartments. Microarray-derived differential gene expression of 88 genes representing critical enzymes of metabolic pathways and 25 genes related to immune cell markers was compared between disease groups...
May 3, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29720538/sympathetic-innervation-regulates-macrophage-activity-in-rat-with-polycystic-ovary
#15
Florencia Figueroa, Gisela Mendoza, Dario Cardozo, Fabian Mohamed, Liliana Oliveros, Myriam Liliana Forneris
Polycystic ovary syndrome (PCOS) is a low grade inflammatory disease characterized by hyperandrogenism and ovarian hyperinnervation. The aim of this work is to investigate whether in vivo bilateral superior ovarian nerve (SON) section in adult rats with estradiol valerate induced polycystic ovarian syndrome (PCO rats) affects macrophage spleen cells (MФ) and modifies the steroidogenic ability of their secretions. Culture media of MФ from PCO rats and PCO rats with SON section (PCO-SON rats) were used to stimulate in vitro intact ovaries...
May 2, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29719778/1-25-dihydroxyvitamin-d3-protects-obese-rats-from-metabolic-syndrome-via-promoting-regulatory-t-cell-mediated-resolution-of-inflammation
#16
Wen Jin, Bing Cui, Pingping Li, Fang Hua, Xiaoxi Lv, Jichao Zhou, Zhuowei Hu, Xiaowei Zhang
Vitamin D3 has been found to produce therapeutic effects on obesity-associated insulin resistance and dyslipidemia through its potent anti-inflammatory activity, but the precise immunomodulatory mechanism remains poorly understood. In the present study we found that 1,25-dihydroxyvitamin D3 [1,25(OH)2 D3 ], the biologically active form of vitamin D3 , significantly attenuated monosodium glutamate (MSG)-induced obesity and insulin resistance as indicated by body weight reduction, oral glucose tolerance improvement, and a glucose infusion rate increase as detected with hyperinsulinemic-euglycemic clamp...
March 2018: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/29701145/a-potential-therapeutic-target-rna-binding-protein-arid5a-for-the-treatment-of-inflammatory-disease-associated-with-aberrant-cytokine-expression
#17
Kazuya Masuda, Tadamitsu Kishimoto
BACKGROUND: Infection, tissue damage and aging can cause inflammation with high levels of inflammatory cytokines. Overproduction of inflammatory cytokines often leads to systemic inflammatory response syndrome (SIRS), severe sepsis, and septic shock. However, prominent therapeutic targets have not been found, although the incidence of sepsis is likely to increase annually. Our recent studies indicate that some RNA-binding proteins, which control gene expression of inflammatory cytokines at the post-transcriptional level, may play a critical role in inflammatory diseases such as sepsis...
April 25, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29698883/a-role-for-tlr10-in-obesity-and-adipose-tissue-morphology
#18
Lily Boutens, Andreea-Manuela Mirea, Inge van den Munckhof, Marije Doppenberg-Oosting, Martin Jaeger, Anneke Hijmans, Mihai G Netea, Leo A B Joosten, Rinke Stienstra
Toll like receptors (TLRs) are expressed in adipose tissue and promote adipose tissue inflammation during obesity. Recently, anti-inflammatory properties have been attributed to TLR10 in myeloid cells, the only member of the TLR family with inhibitory activity. In order to assess whether TLR10-induced inhibition of inflammation may be protective during the development of obesity and metabolic abnormalities we used transgenic human TLR10 mice (hTLR10tg) and wild type (WT) controls on a C57B6J background. HFD-feeding enhanced TLR10 expression in the adipose tissue, and HFD-fed hTLR10tg mice displayed reduced adipocyte size, adipose tissue weight, and a trend toward lower plasma insulin levels compared to WT mice...
April 23, 2018: Cytokine
https://www.readbyqxmd.com/read/29697390/ultrastructural-changes-of-wound-macrophages-under-the-influence-of-intravenous-ozone-therapy-in-patients-with-diabetes-and-inflammatory-processes-of-soft-tissues
#19
S Karatieieva, N Muzyka, S Semenenko, O Bakun, I Kozlovskaya
Investigation of ultrastructural peculiarities of morpho-functional changes of macrophages have been studied with the purpose of determining the dynamics and thrust of destructive-necrotic processes in these cells when the ischemic-gangrenous form of diabetic foot syndrome develops show what under the influence of intravenous ozone therapy stimulant effect on functional activity and beneficial effect on elimination, mainly due to genetically programmed cell death (apoptosis), playing a significant role in the regulatory mechanisms of the inflammatory process...
March 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29686681/-anaplasma-phagocytophilum-related-defects-in-cd8-nkt-and-nk-lymphocyte-cytotoxicity
#20
Diana G Scorpio, Kyoung-Seong Choi, J Stephen Dumler
Human granulocytic anaplasmosis, caused by the tick-transmitted Anaplasma phagocytophilum , is not controlled by innate immunity, and induces a proinflammatory disease state with innate immune cell activation. In A. phagocytophilum murine infection models, hepatic injury occurs with production of IFNγ thought to be derived from NK, NKT cells, and CD8 T lymphocytes. Specific A. phagocytophilum ligands that drive inflammation and disease are not known, but suggest a clinical and pathophysiologic basis strikingly like macrophage activation syndrome (MAS) and hemophagocytic syndrome (HPS)...
2018: Frontiers in Immunology
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