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https://www.readbyqxmd.com/read/28098596/erythema-nodosum-leprosum-like-lesions-are-a-histopathologic-pattern-in-whipple-s-disease-and-a-sign-of-the-immune-reconstitution-inflammatory-syndrome-a-case-series-and-review-of-the-literature
#1
Julia Liersch, Agnès Carlotti, Anne Theunis, Alexandra Leonard, Mary Barrett, John Andrew Carlson, Jörg Schaller
Inflammatory and subcutaneous nodules can arise in treated and untreated cases of Whipple disease (WD). The inflammatory immune reconstitution syndrome describes paradoxical clinical inflammatory worsening of a preexisting condition because of a return of immune function. Clinicopathologic examination of 4 patients with WD who presented with erythema nodosum leprosum (ENL)-like lesions and the findings of a systematic review of this phenomenon revealed that ENL-like lesions occurred in predominantly middle-aged male patients who suffered from WD, mostly on the legs...
January 10, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28095869/macrophage-activation-syndrome-different-mechanisms-leading-to-a-one-clinical-syndrome
#2
REVIEW
Claudia Bracaglia, Giusi Prencipe, Fabrizio De Benedetti
BACKGROUND: Macrophage activation syndrome (MAS) is a severe complication of rheumatic disease in childhood, particularly in systemic Juvenile Idiopathic Arthritis (sJIA). It is characterize by an uncontrolled activation and proliferation of T lymphocytes and macrophages. MAIN CONTENT: MAS is currently classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH). The reason is that MAS shares clinical and laboratory features with primary genetic HLH (pHLH)...
January 17, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28094589/leucine-rich-%C3%AE-2-glycoprotein-as-the-acute-phase-reactant-to-detect-systemic-juvenile-idiopathic-arthritis-disease-activity-during-anti-interleukin-6-blockade-therapy-a-case-series
#3
Masaki Shimizu, Yasuo Nakagishi, Natsumi Inoue, Mao Mizuta, Akihiro Yachie
OBJECTIVES: To assess the role of leucine-rich α2-glycoprotein (LRG) as a biomarker for monitoring systemic juvenile idiopathic arthritis (s-JIA) disease activity during interleukin (IL)-6 blockade treatment. METHODS: We serially measured serum LRG levels in four s-JIA patients treated with the anti-IL-6 receptor antibody tocilizumab and determined the correlation between clinical symptoms and other inflammatory biomarkers and proinflammatory cytokines, including IL-18, IL-6, neopterin, and tumor necrosis factor-α receptor type I and II...
January 17, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28086978/correlation-of-cytokine-level-with-the-severity-of-severe-fever-with-thrombocytopenia-syndrome
#4
Miao-Miao Liu, Xiao-Ying Lei, Hao Yu, Jian-Zhi Zhang, Xue-Jie Yu
BACKGROUND: Severe fever with thrombocytopenia syndrome (SFTS) was an emerging hemorrhagic fever that was caused by a tick-borne bunyavirus, SFTSV. Although SFTSV nonstructural protein can inhibit type I interferon (IFN-I) production Ex Vivo and IFN-I played key role in resistance SFTSV infection in animal model, the role of IFN-I in patients is not investigated. METHODS: We have assayed the concentration of IFN-α, a subtype of IFN-I as well as other cytokines in the sera of SFTS patients and the healthy population with CBA (Cytometric bead array) assay...
January 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/28072933/altered-blood-levels-of-vitamin-d-cathelicidin-and-parathyroid-hormone-in-patients-with-sepsis-a-pilot-study
#5
T Greulich, W Regner, M Branscheidt, C Herr, A R Koczulla, C F Vogelmeier, R Bals
It has been recognised that vitamin D (VitD) has a potential role in the regulation of inflammation and protection from infection. In a prospective clinical observational pilot study, we investigated the serum levels of 25-hydroxyvitamin-D3 (25(OH)D3), 1,25-hydroxyvitamin-D3 (1,25(OH)2D3), parathyroid hormone (PTH), and cathelicidin in intensive care unit (ICU) patients with or without systemic inflammatory response syndrome (SIRS). We included 32 patients with SIRS (septic patients), 16 ICU patients without SIRS, and 16 healthy controls...
January 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28070498/hemophagocytic-lymphohistiocytosis-in-adults-an-under-recognized-entity
#6
Abdul Rashid Shah, Tariq Muzzafar, Rita Assi, Dawid Schellingerhout, Zeev Estrov, Gevorg Tamamyan, Hagop Kantarjian, Naval Daver
Hemophagocytic lymphohistiocytosis (HLH) is a syndrome of severe immune activation with macrophage and T-cell infiltration resulting in, multi organ damage. HLH may be primary or secondary in etiology. A high index of suspicion is essential for early diagnosis and treatment. Diagnostic criteria need to be refined and newer treatment options to be explored in order to improve survival especially in adult HLH and malignancy-associated HLH (M-HLH). We report a case of malignancy associated HLH (M-HLH) in adult treated on one of the only FDA-approved protocols for adult HLH to highlight the diagnostic and therapeutic challenges of this disease entity...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28066896/parasite-excretory-secretory-products-and-their-effects-on-metabolic-syndrome
#7
Jenny Crowe, Felicity E Lumb, Margaret M Harnett, William Harnett
Obesity, one of the main causes of metabolic syndrome (MetS), is an increasingly common health and economic problem worldwide, and one of the major risk factors for developing type 2 diabetes and cardiovascular disease. Chronic, low-grade inflammation is associated with MetS and obesity. A dominant type 2/anti-inflammatory response is required for metabolic homeostasis within adipose tissue: during obesity, this response is replaced by infiltrating, inflammatory macrophages and T cells. Helminths and certain protozoan parasites are able to manipulate the host immune response towards a TH2 immune phenotype that is beneficial for their survival and there is emerging data that there is an inverse correlation between the incidence of MetS and helminth infections, suggesting that, as with autoimmune and allergic diseases, helminths may play a protective role against MetS disease...
January 9, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28064221/wound-healing-delay-in-the-zdsd-rat
#8
Mark A Suckow, Troy A Gobbett, Richard G Peterson
Animal models of diabetic delayed wound healing are essential to the development of strategies to improve clinical approaches for human patients. The Zucker diabetic Sprague Dawley (ZDSD) rat has proved to be an accurate model of diet-induced obesity and diabetes and we evaluated the utility of the ZDSD rat as a model for delayed wound healing associated with diabetes and obesity. Groups of ZDSD and Sprague Dawley (SD) rats were placed on a diabetogenic diet and evaluated two weeks later for hyperglycemia, as a sign of diabetes...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28063230/pcsk9-at-the-crossroad-of-cholesterol-metabolism-and-immune-function-during-infections
#9
REVIEW
Francesco Paciullo, Francesca Fallarino, Vanessa Bianconi, Massimo R Mannarino, Amirhossein Sahebkar, Matteo Pirro
Sepsis, a complex and dynamic syndrome resulting from microbial invasion and immune system dysregulation, is associated with an increased mortality, reaching up to 35% worldwide. Cholesterol metabolism is often disturbed during sepsis, with low plasma cholesterol levels being associated with poor prognosis. Proprotein convertase subtilisin/kexin type 9 (PCSK9) promotes degradation of the low-density lipoprotein receptor (LDLR), thus regulating intracellular and plasma cholesterol levels. PCSK9 is often upregulated during sepsis and might have a detrimental effect on immune host response and survival...
January 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28062701/widespread-virus-replication-in-alveoli-drives-acute-respiratory-distress-syndrome-in-aerosolized-h5n1-influenza-infection-of-macaques
#10
Elizabeth R Wonderlich, Zachary D Swan, Stephanie J Bissel, Amy L Hartman, Jonathan P Carney, Katherine J O'Malley, Adebimpe O Obadan, Jefferson Santos, Reagan Walker, Timothy J Sturgeon, Lonnie J Frye, Pauline Maiello, Charles A Scanga, Jennifer D Bowling, Anthea L Bouwer, Parichat A Duangkhae, Clayton A Wiley, JoAnne L Flynn, Jieru Wang, Kelly S Cole, Daniel R Perez, Douglas S Reed, Simon M Barratt-Boyes
Human infections with highly pathogenic avian influenza A (H5N1) virus are frequently fatal but the mechanisms of disease remain ill-defined. H5N1 infection is associated with intense production of proinflammatory cytokines, but whether this cytokine storm is the main cause of fatality or is a consequence of extensive virus replication that itself drives disease remains controversial. Conventional intratracheal inoculation of a liquid suspension of H5N1 influenza virus in nonhuman primates likely results in efficient clearance of virus within the upper respiratory tract and rarely produces severe disease...
January 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28062309/a-local-inflammatory-renin-angiotensin-system-drives-sensory-axon-sprouting-in-provoked-vestibulodynia
#11
Zhaohui Liao, Anuradha Chakrabarty, Ying Mu, Aritra Bhattacherjee, Martha Goestch, Catherine M Leclair, Peter G Smith
: Vestibulodynia is a form of provoked vulvodynia characterized by profound tenderness, hyperinnervation, and frequently inflammation within well-defined areas of the human vestibule. Prior experiments in animal models show that inflammatory hypersensitivity and hyperinnervation occur in concert with establishment of a local renin-angiotensin system (RAS). Moreover, mechanical hypersensitivity and sensory axon sprouting are prevented by blocking effects of angiotensin II on AT2 receptors...
January 3, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28057904/a-serine-threonine-phosphatase-1-of-streptococcus-suis-type-2-is-an-important-virulence-factor
#12
Lihua Fang, Pengcheng Fan, Yunkai Yang, Jingjing Zhou, Hongxia Shen, Weihuan Fang
Streptococcus suis is regarded as one of the major pathogens of pigs while S. suis type 2 (SS2) is considered to be a zoonotic bacterium for its ability to cause meningitis and streptococcal toxic shock-like syndrome in humans. Many bacterial species contain genes encoding serine/threonine protein phosphatases (STP) responsible for dephosphorylation of their substrates in a single reaction step. This study was aimed to investigate the role of stp1 in pathogenesis of SS2. An isogenic stp1 mutant (Δstp1) was constructed from the SS2 strain ZJ081101...
January 4, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28053137/activation-of-cecr1-in-m2-like-tams-promotes-paracrine-stimulation-mediated-glial-tumor-progression
#13
Changbin Zhu, Dana Mustafa, Ping-Pin Zheng, Marcel van der Weiden, Andrea Sacchetti, Maarten Brandt, Ihsan Chrifi, Dennie Tempel, Pieter J M Leenen, Dirk Jan Duncker, Caroline Cheng, Johan M Kros
BACKGROUND: The majority of glioma-associated microglia/macrophages have been identified as M2-type macrophages with immune suppressive and tumor supportive action. Recently, the extracellular adenosine deaminase protein Cat Eye Syndrome Critical Region Protein 1 (CECR1) was shown to regulate macrophage maturation. In this study, we investigate the role of CECR1 in the regulation of the glioma-associated macrophage response. METHODS: Expression of CECR1 was assessed in human glioma samples...
January 3, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28052127/overexpression-of-histone-deacetylase-6-enhances-resistance-to-porcine-reproductive-and-respiratory-syndrome-virus-in-pigs
#14
Tianyu Lu, Zhiyuan Song, Qiuyan Li, Zhiguo Li, Meng Wang, Lin Liu, Kegong Tian, Ning Li
Porcine reproductive and respiratory syndrome virus (PRRSV) is one of the most economically relevant viral pathogens in pigs and causes substantial losses in the pig industry worldwide each year. At present, PRRSV vaccines do not effectively prevent and control this disease. Consequently, it is necessary to develop new antiviral strategies to compensate for the inefficacy of the available vaccines. Histone deacetylase 6 (HDAC6) is an important member of the histone deacetylase family that is responsible for regulating many important biological processes...
2017: PloS One
https://www.readbyqxmd.com/read/28051834/interferon-%C3%AE-induced-protein-10-in-dengue-virus-infection
#15
P Fallahi, G Elia
Dengue virus (DENV) infection causes dengue fever, dengue hemorrhagic fever, or dengue shock syndrome. Interferons (IFNs), and IFN-γ dependent chemokines, chemokine (C-X-C motif) ligand (CXCL)10/IFN-γ-induced protein 10 (IP-10), CXCL9/MIG and CXCL11/I-TAC, and their common receptor chemokine (C-X-C motif) receptor (CXCR)3 are induced by DENV infection; however it has been shown that the latter two could not compensate for the absence of IP-10. This paper reviews studies about DENV and IP-10. Evidences show the importance of IP-10 induction during DENV infection, in macrophages, lymphocytes, hepatic cells, denritic cells, in skin and in the brain...
November 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28051154/therapeutic-effects-of-human-umbilical-cord-derived-mesenchymal-stem-cells-in-acute-lung-injury-mice
#16
Hua Zhu, Yi Xiong, Yunqiu Xia, Rong Zhang, Daiyin Tian, Ting Wang, Jihong Dai, Lijia Wang, Hongbing Yao, Hong Jiang, Ke Yang, Enmei Liu, Yujun Shi, Zhou Fu, Li Gao, Lin Zou
The incidence and mortality of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) are still very high, but stem cells show some promise for its treatment. Here we found that intratracheal administration of human umbilical cord-mesenchymal stem cells (UC-MSCs) significantly improved survival and attenuated the lung inflammation in lipopolysaccharide (LPS)-induced ALI mice. We also used the proteins-chip and bioinformatics to analyze interactions between UC-MSCs treatment and immune-response alternations of ALI mice...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28049128/immune-reconstitution-inflammatory-syndrome-associated-with-pulmonary-pathogens
#17
REVIEW
Radha Gopal, Rekha R Rapaka, Jay K Kolls
Immune reconstitution inflammatory syndrome (IRIS) is an exaggerated immune response to a variety of pathogens in response to antiretroviral therapy-mediated recovery of the immune system in HIV-infected patients. Although IRIS can occur in many organs, pulmonary IRIS, associated with opportunistic infections such as Mycobacterium tuberculosis and Pneumocystis jirovecii, is particularly associated with high morbidity and mortality. The pathology of IRIS is associated with a variety of innate and adaptive immune factors, including CD4(+) T-cells, CD8(+) T-cells, γδ T-cells, natural killer cells, macrophages, the complement system and surfactant proteins, Toll-like receptors and pro-inflammatory cytokines and chemokines...
January 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/28046003/cxcl10-ip-10-neutralization-can-ameliorate-lipopolysaccharide-induced-acute-respiratory-distress-syndrome-in-rats
#18
Shan Lang, Libing Li, Xuning Wang, Junping Sun, Xinying Xue, Yongjiu Xiao, Mingyue Zhang, Ting Ao, Jianxin Wang
The role of C-X-C motif chemokine 10 (CXCL10), a pro-inflammatory factor, in the development of acute respiratory distress syndrome (ARDS) remains unclear. In this study, we explored the role of CXCL10 and the effect of CXCL10 neutralization in lipopolysaccharide (LPS)-induced ARDS in rats. The expression of CXCL10 and its receptor chemokine receptor 3(CXCR3) increased after LPS induction. Moreover, neutralization of CXCL10 ameliorated the severity of ARDS by reducing pulmonary edema, inhibiting the release of inflammatory mediators (IFN-γ, IL-6 and ICAM-1) and limiting inflammatory cells (neutrophils, macrophages, CD8+ T cells) influx into the lung, with a reduction in CXCR3 expression in neutrophils and macrophages...
2017: PloS One
https://www.readbyqxmd.com/read/28045404/liver-inflammation-and-fibrosis
#19
Yukinori Koyama, David A Brenner
Chronic liver inflammation leads to fibrosis and cirrhosis, which is the 12th leading cause of death in the United States. Hepatocyte steatosis is a component of metabolic syndrome and insulin resistance. Hepatic steatosis may be benign or progress to hepatocyte injury and the initiation of inflammation, which activates immune cells. While Kupffer cells are the resident macrophage in the liver, inflammatory cells such as infiltrating macrophages, T lymphocytes, neutrophils, and DCs all contribute to liver inflammation...
January 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28044051/maturation-phenotype-of-peripheral-blood-monocyte-macrophage-after-stimulation-with-lipopolysaccharides-in-irritable-bowel-syndrome
#20
Oscar A Rodríguez-Fandiño, Joselín Hernández-Ruiz, Yolanda López-Vidal, Luis Charúa-Guindic, Galileo Escobedo, Max J Schmulson
Background/Aims: Abnormal immune regulation and increased intestinal permeability augmenting the passage of bacterial molecules that can activate immune cells, such as monocytes/macrophages, have been reported in irritable bowel syndrome (IBS). To compare the maturation phenotype of monocytes/macrophages (CD14+) from IBS patients and controls in the presence or absence of E. coli lipopolysaccharides (LPS), in vitro. Methods: Mononuclear cells were isolated from peripheral blood of 20 Rome II-IBS patients and 19 controls and cultured with or without LPS for 72 hours...
January 2, 2017: Journal of Neurogastroenterology and Motility
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