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macrophage activation syndrome

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https://www.readbyqxmd.com/read/28723775/the-neutrophil-to-lymphocyte-ratio-could-be-a-good-diagnostic-marker-and-predictor-of-relapse-in-patients-with-adult-onset-still-s-disease-a-strobe-compliant-retrospective-observational-analysis
#1
Ji-Yeoun Seo, Chang-Hee Suh, Ju-Yang Jung, Ar-Reum Kim, Ji Won Yang, Hyoun-Ah Kim
The neutrophil-to-lymphocyte ratio (NLR) is the proportion of absolute neutrophil count to lymphocytes on routine complete blood count (CBC) tests, and has been studied as a simple marker of the systemic inflammatory response. This study was performed to investigate whether the NLR could be used as a tool to diagnose and predict prognosis in cases of adult-onset Still's disease (AOSD).We retrospectively reviewed 164 patients with suspected AOSD. Among 164 patients with suspected AOSD, 37 patients received another diagnosis (such as viral infection) and were compared with the 127 patients who received a diagnosis of AOSD...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28712302/overcoming-the-hydrolytic-lability-of-a-reaction-intermediate-in-production-of-protein-drug-conjugates-conjugation-of-an-acyclic-nucleoside-phosphonate-to-a-model-carrier-protein
#2
Shengsheng Xu, Igor A Kaltashov
Acquired immunodeficiency syndrome (AIDS) remains one of the most serious public health challenges and a significant cause of mortality for certain populations. Despite the large number of antiretrovirals developed in the past two decades, the inability of small molecule therapeutics to target HIV reservoirs directly creates a significant obstacle to their effective utilization. Indeed, achieving the desired therapeutic outcome in the absence of an effective means of targeted delivery must rely on dosage escalation, which frequently causes severe toxicity...
July 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28705940/characterisation-of-eppin-function-expression-and-activity-in-the-lung
#3
Aaron Scott, Arlene Glasgow, Donna Small, Simon Carlile, Maelíosa McCrudden, Denise McLean, Ryan Brown, Declan Doherty, Fionnuala T Lundy, Umar I Hamid, Cecilia M O'Kane, Daniel F McAuley, Malcolm Brodlie, Michael Tunney, J Stuart Elborn, Chris R Irwin, David J Timson, Clifford C Taggart, Sinéad Weldon
Eppin is a serine protease inhibitor expressed in male reproductive tissues.The aim of this study was to investigate the localisation and regulation of eppin expression in myeloid and epithelial cell lines, and explore its potential role as a multifunctional host defence protein.Using immunohistochemistry and Western blotting, eppin was detected in the lungs of patients with acute respiratory distress syndrome and cystic fibrosis lung disease. Expression of eppin in monocytic cells was unaffected by stimulation with Toll-like receptor agonists, cytokines and hormone receptor agonists...
July 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28704922/transcriptome-differences-in-porcine-alveolar-macrophages-from-tongcheng-and-large-white-pigs-in-response-to-highly-pathogenic-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-infection
#4
Wan Liang, Likai Ji, Yu Zhang, Yueran Zhen, Qingde Zhang, Xuewen Xu, Bang Liu
Porcine reproductive and respiratory syndrome virus (PRRSV) is a single-stranded positive-sense RNA virus that can cause devastating reproductive failure and respiratory tract lesions, which has led to serious damage to the swine industry worldwide. Our previous studies have indicated that Tongcheng (TC) pigs, a Chinese local breed, have stronger resistance or tolerance to PRRSV infection than Large White (LW) pigs. This study aims to investigate their host transcriptome differences in porcine alveolar macrophages (PAMs) at 7 days post challenge...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28703031/lower-circulating-migration-inhibitory-factor-protein-is-associated-with-metabolic-syndrome-and-diabetes
#5
Altan Onat, Evin Ademoğlu, Günay Can, Neslihan Çoban, Ayşem Kaya, Hüsniye Yüksel
AIM: The controversial relationship between macrophage migration inhibitory factor (MIF) and the likelihood of cardiometabolic diseases was investigated. Results/methodology: Assayed MIF protein from 1225 adults was cross-sectionally analyzed. MIF was independently inversely associated with age, total testosterone and positively with high-density lipoprotein-cholesterol. In men MIF correlation with age, testosterone and waist circumference converted from inverse in the upper to positive in the bottom MIF third...
July 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28692538/metabolic-syndrome-and-obesity-are-the-cornerstones-of-liver-fibrosis-in-hiv-monoinfected-patients-results-of-the-metafib-study
#6
Maud Lemoine, Karine Lacombe, Jean Philippe Bastard, Manuela Sébire, Laurent Fonquernie, Nadia Valin, Soraya Fellahi, Jacqueline Capeau, Pierre-Marie Girard, Jean-Luc Meynard
BACKGROUND: Metabolic syndrome (MetS) and nonalcoholic fatty liver disease (NAFLD) have become a common finding in HIV-infected patients. However, the severity, risk factors and pathogenesis of liver fibrosis in this population have been poorly documented. OBJECTIVES: to assess the impact of MetS on liver fibrosis and analyze the association between MetS, liver fibrosis and markers of adipose tissue and macrophage activation. METHODS: In a matched cohort of HIV-1-monoinfected patients with and without MetS, after exclusion of other causes of liver disease, we assessed liver stiffness measurement (LSM) and measured levels of serum adipokines, HOMA index and soluble CD163 and CD14 as markers of fat, insulin resistance and macrophage/monocyte activation, respectively...
July 7, 2017: AIDS
https://www.readbyqxmd.com/read/28690841/new-frontiers-in-the-treatment-of-systemic-juvenile-idiopathic-arthritis
#7
REVIEW
Susan Canny, Elizabeth Mellins
Systemic juvenile idiopathic arthritis (sJIA) and its most significant complication, macrophage activation syndrome (MAS), have traditionally been treated with steroids and non-steroidal anti-inflammatory medications. However, the introduction of biologic medications that inhibit specific cytokines, such interleukins 1 and 6, has changed the treatment paradigm for sJIA patients. In this review, we discuss the therapies currently used in the treatment of sJIA as well as novel targets and approaches under consideration, including mesenchymal stromal cell therapy and JAK inhibitors...
2017: F1000Research
https://www.readbyqxmd.com/read/28689166/ocular-surface-cytokine-profile-in-chronic-stevens-johnson-syndrome-and-its-response-to-mucous-membrane-grafting-for-lid-margin-keratinisation
#8
Srividya Gurumurthy, Geetha Iyer, Bhaskar Srinivasan, Shweta Agarwal, Narayanasamy Angayarkanni
BACKGROUND: To study the tear cytokine and the conjunctival and oral mucosal marker profile in chronic ocular Stevens-Johnson syndrome (SJS) and their alteration following mucous membrane grafting (MMG) for lid margin keratinisation (LMK). METHODS: In a 1-year prospective study, SJS cases (n=25) and age-matched/sex-matched healthy controls (n=25) were recruited. Tear specimen (Schirmer's strip), conjunctival and oral mucosal imprints were collected from controls and SJS cases pre-MMG and post-MMG (at first follow-up, n=17)...
July 8, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28687713/tlr9-is-upregulated-in-human-and-murine-nash-pivotal-role-for-inflammatory-recruitment-and-cell-survival
#9
Auvro R Mridha, Fahrettin Haczeyni, Matthew M Yeh, W Geoffrey Haigh, George N Ioannou, Vanessa Barn, Hussam Ajamieh, Leon Adams, Jeffrey M Hamdorf, Narci C Teoh, Geoffrey C Farrell
Background & Aims: TLR9 deletion protects against steatohepatitis due to choline-amino acid depletion and high-fat diet. We measured TLR9 in human NASH livers, and tested whether TLR9 mediates inflammatory recruitment in three murine models of NAFLD. Methods: We assayed TLR mRNA in liver biopsies from bariatric surgery patients. Wildtype (Wt) , appetite-dysregulated Alms1 mutant (foz/foz),Tlr9(-/-), and Tlr9(-/-).foz/foz C57BL6/J mice and bone marrow (BM) chimeras were fed 0.2% cholesterol, high-fat, high sucrose (atherogenic[Ath]) diet or chow, and NAFLD activity score (NAS)/NASH pathology, macrophage/neutrophil infiltration, cytokines/chemokines and cell death markers measured in livers...
July 7, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28679751/aim2-like-receptors-positively-and-negatively-regulate-the-interferon-response-induced-by-cytosolic-dna
#10
Yuki Nakaya, Jingtao Lilue, Spyridon Stavrou, Eileen A Moran, Susan R Ross
Cytosolic DNAs derived from retrotransposons serve as pathogen-associated molecular patterns for pattern recognition receptors (PRRs) that stimulate the induction of interferons (IFNs) and other cytokines, leading to autoimmune disease. Cyclic GMP-AMP synthase is one PRR that senses retrotransposon DNA, activating type I IFN responses through the stimulator of IFN genes (STING). Absent in melanoma 2 (AIM2)-like receptors (ALRs) have also been implicated in these pathways. Here we show that the mouse ALR IFI205 senses cytosolic retrotransposon DNA independently of cyclic GMP-AMP production...
July 5, 2017: MBio
https://www.readbyqxmd.com/read/28674485/the-pathophysiological-role-of-microglia-in-dynamic-surveillance-phagocytosis-and-structural-remodeling-of-the-developing-cns
#11
REVIEW
Cataldo Arcuri, Carmen Mecca, Roberta Bianchi, Ileana Giambanco, Rosario Donato
In vertebrates, during an early wave of hematopoiesis in the yolk sac between embryonic day E7.0 and E9.0, cells of mesodermal leaflet addressed to macrophage lineage enter in developing central nervous system (CNS) and originate the developing native microglial cells. Depending on the species, microglial cells represent 5-20% of glial cells resident in adult brain. Here, we briefly discuss some canonical functions of the microglia, i.e., cytokine secretion and functional transition from M1 to M2 phenotype...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28673995/inhibition-of-acute-lethal-pulmonary-inflammation-by-the-ido-ahr-pathway
#12
Soung-Min Lee, Ha Young Park, Young-Sill Suh, Eun Hye Yoon, Juyang Kim, Won Hee Jang, Won-Sik Lee, Sae-Gwang Park, Il-Whan Choi, Inhak Choi, Sun-Woo Kang, Hwayoung Yun, Takanori Teshima, Byungsuk Kwon, Su-Kil Seo
The lung is a prototypic organ that was evolved to reduce immunopathology during the immune response to potentially hazardous endogenous and exogenous antigens. In this study, we show that donor CD4(+) T cells transiently induced expression of indoleamine 2,3-dioxygenase (IDO) in lung parenchyma in an IFN-γ-dependent manner early after allogeneic hematopoietic stem cell transplantation (HSCT). Abrogation of host IDO expression by deletion of the IDO gene or the IFN-γ gene in donor T cells or by FK506 treatment resulted in acute lethal pulmonary inflammation known as idiopathic pneumonia syndrome (IPS)...
July 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28670393/chronic-intermittent-hypoxia-decreases-pulmonary-clearance-of-99m-tc-labelled-particulate-matter-in-mice
#13
Cuiping Fu, Huan Lu, Xu Wu, Jie Liu, Chengying Liu, Zilong Liu, Wei Yuan, Jian Zhou, Shanqun Li
BACKGROUND: Obstructive sleep apnea-hypopnea syndrome (OSAHS) could cause systematic inflammation including pulmonary inflammatory response, whereas the influence of OSAHS in pulmonary clearance ability remains unknown. The main pathophysiological feature of OSAHS is chronic intermittent hypoxia (CIH). The goal of this study is to clarify the airway clearance of particulate matter (PM) in CIH mice, and to explore the potential mechanism. METHODS: Balb/c mice were divided into a CIH group and a control group, exposed to intermittent hypoxia and air chamber, respectively...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28670262/lupus-erythematosus-panniculitis-resistant-to-standard-treatment-complicated-with-macrophage-activation-syndrome
#14
Katarzyna Juczynska, Anna Wozniacka, Elzbieta Waszczykowska, Agnieszka Zebrowska
No abstract text is available yet for this article.
June 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28666081/mhc-class-ii-alleles-influence-induction-of-pathogenic-antiphospholipid-antibodies-in-a-thrombosis-mouse-model
#15
Elizabeth Papalardo, Zurina Romay-Penabad, Rohan Willis, Premkumar Christadoss, Ana Laura Carrera-Marin, Elba Reyes-Maldonado, Rajani Rudrangi, Silvana Alfieri-Papalardo, Ethel Garcia-Latorre, Miri Blank, Silvia Pierangeli, Allan R Brasier, Emilio B Gonzalez
OBJECTIVE: Both environmental and genetic factors are important in antiphospholipid antibody(aPL) development in antiphospholipid syndrome(APS). Currently, the only available data on predisposing genetic factors have been obtained from epidemiological studies without mechanistic evidence. Therefore, we studied the influence of Major Histocompatibility Complex Class II(MHC-II) alleles on the production of aPL in an APS mouse model. METHODS: Three groups of mice: MHC-II deficient (MHC-II(-/-) ) mice, MHC-II(-/-) mice transgenic for human DQ6, DQ8 or DR4 alleles and their corresponding wild-type(WT) strains were each immunized, half with human β2 glycoprotein-I(β2 GPI) and the other half with control ovalbumin(OA) protein...
June 30, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28663777/disseminated-mycobacterium-avium-complex-in-an-adolescent-with-perinatally-acquired-hiv-infection
#16
Nurul I Hariadi, R Alexander Blackwood
Mycobacterium avium complex (MAC) is the most frequent nontuberculous mycobacteria implicated in opportunistic infections that define acquired immunodeficiency syndrome. With highly active antiretroviral therapy, disseminated MAC (dMAC) has become a rare entity. This unique case of dMAC was diagnosed in an adolescent with newly diagnosed perinatally-acquired HIV infection whose initial CD4 cell count was severely depleted and viral load was extremely high. While maximized treatment regimen had not been able to control his dMAC, improvement was noted when granulocyte macrophage colony-stimulating factor (GM-CSF) was added...
May 31, 2017: Infectious Disease Reports
https://www.readbyqxmd.com/read/28651353/protein-tyrosine-phosphatase-1b-mediates-sleep-fragmentation-induced-insulin-resistance-and-visceral-adipose-tissue-inflammation-in-mice
#17
David Gozal, Abdelnaby Khalyfa, Zhuanghong Qiao, Mahzad Akbarpour, Rosanna Maccari, Rosaria Ottanà
Study Objectives: Sleep fragmentation (SF) is highly prevalent and has emerged as an important contributing factor to obesity and metabolic syndrome. We hypothesized that SF-induced increases in protein tyrosine phosphatase-1B (PTP-1B) expression and activity underlie increased food intake, inflammation, and leptin and insulin resistance. Methods: Wild type (WT) and ObR-PTP-1b-/- mice (Tg) were exposed to SF and control sleep (SC), and food intake was monitored...
June 23, 2017: Sleep
https://www.readbyqxmd.com/read/28648940/upregulation-of-inhibitory-signaling-receptor-programmed-death-marker-1-pd-1-in-disease-evolution-from-cutaneous-lymphoid-dyscrasias-to-mycosis-fungoides-and-sezary-s-syndrome
#18
Giang Huong Nguyen, Luke C Olson, Cynthia M Magro
BACKGROUND: Negative immunoregulatory checkpoints impede effective immune responses to tumor and reduce the action of anticancer agents. One such example is programmed death marker-1 (PD-1), an inhibitory signaling receptor expressed on activated and regulatory T-cells. PD-1 expression was reported in a few reports, but the expression profile of PD-1 and mycosis fungoides (MF) remains largely to be characterized. DESIGN: In this study, skin biopsies from 42 prelymphomatous T-cell dyscrasias (CLD), 9 Sezary's syndrome (SS), 103 MF, and 20 CD30+ lymphoproliferative diseases (LPD) were examined for PD-1 expression using immunohistochemistry...
June 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28647517/proteomics-to-study-macrophage-response-to-viral-infection
#19
Tuula A Nyman, Sampsa Matikainen
Viral infections are a major burden to human and animal health. Immune response against viruses consists of innate and adaptive immunity which are both critical for the eradication of the viral infection. The innate immune system is the first line of defense against viral infections. Proper innate immune response is required for the activation of adaptive, humoral and cell-mediated immunity. Macrophages are innate immune cells which have a central role in detecting viral infections including influenza A and human immunodeficiency viruses...
June 21, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28646367/ifn%C3%AE-producing-cd4-t-lymphocytes-the-double-edged-swords-in-tuberculosis
#20
Pawan Kumar
IFNγ-producing CD4(+) T cells (IFNγ(+)CD4(+) T cells) are the key orchestrators of protective immunity against Mycobacterium tuberculosis (Mtb). Primarily, these cells act by enabling Mtb-infected macrophages to enforce phagosome-lysosome fusion, produce reactive nitrogen intermediates (RNIs), and activate autophagy pathways. However, TB is a heterogeneous disease and a host of clinical and experimental findings has also implicated IFNγ(+)CD4(+) T cells in TB pathogenesis. High frequency of IFNγ(+)CD4(+) T cells is the most invariable feature of the active disease...
December 2017: Clinical and Translational Medicine
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