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Il-1 receptor antagonist

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https://www.readbyqxmd.com/read/28333874/successful-treatment-of-autoimmune-disease-associated-pyoderma-gangrenosum-with-the-il-1-receptor-antagonist-anakinra-a-case-series-of-3-patients
#1
Celia Beynon, Mei Fong Chin, Prasad Hunasehally, Krishnan Bhagwandas, Martin Bevan, Marisa Taylor, Thomas Lawson
No abstract text is available yet for this article.
April 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28324042/interleukin-1-antagonism-decreases-cortisol-levels-in-obese-individuals
#2
Sandrine Andrea Urwyler, Philipp Schuetz, Fahim Ebrahimi, Marc Y Donath, Mirjam Christ-Crain
Context: Increased cortisol levels in obesity may contribute to the associated metabolic syndrome. In obesity, the activated innate immune system leads to increased interleukin (IL)-1β, which is known to stimulate the release of adrenocorticotropin hormone (ACTH). Objective: We hypothesised that in obesity IL-1 antagonism would result in downregulation of the hypothalamo-pituitary-adrenal (HPA) axis, leading to decreased cortisol levels. Design and participants: In this prospective intervention study we included 73 patients with obesity (BMI >30kg/m2) and at least one additional feature of the metabolic syndrome...
February 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322830/antidiabetic-antidyslipidemic-and-toxicity-profile-of-env-2-a-potent-pyrazole-derivative-against-diabetes-and-related-diseases
#3
Eduardo Hernández-Vázquez, Hugo Ocampo-Montalban, Litzia Cerón-Romero, Miguel Cruz, Jaime Gomez-Zamudio, Guadalupe Hiriart-Valencia, Rafael Villalobos-Molina, Angelica Flores-Flores, Samuel Estrada-Soto
Diabetes is a major health problem and a predisposition factor for further degenerative complications and, therefore, novel therapies are urgently needed. Currently, cannabinoid receptor 1 (CB1 receptor) antagonists have been considered as promissory entities for metabolic disorders treatment. Accordingly, the purpose of this work was the evaluation of the sub-acute antidiabetic, anti-hyperglycemic, antidyslipidemic and toxicological profile of ENV-2, a potent hypoglycemic and antioxidant CB1 receptor antagonist...
March 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28322132/therapeutically-targeting-the-inflammasome-product-in-a-chimeric-model-of-endometriosis-related-surgical-adhesions
#4
Meredith M Stocks, Marta A Crispens, Tianbing Ding, Shilpa Mokshagundam, Kaylon L Bruner-Tran, Kevin G Osteen
Development of adhesions commonly occurs in association with surgery for endometriosis. Even in the absence of surgery, women with endometriosis appear to be at an enhanced risk of developing adhesions. In the current study, we utilized a chimeric mouse model of experimental endometriosis in order to examine the role of inflammasome activation in the development of postsurgical adhesions. Mice were randomized to receive peritoneal injections of human endometrial tissue fragments or endometrial tissue conditioned media (CM) from women with or without endometriosis 16 hours after ovariectomy and placement of an estradiol-releasing silastic capsule...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28321024/the-growth-hormone-secretagogue-hexarelin-protects-rat-cardiomyocytes-from-in-vivo-ischemia-reperfusion-injury-through-interleukin-1-signaling-pathway
#5
Jiannan Huang, Yi Li, Juan Zhang, Yusheng Liu, Qinghua Lu
Hexarelin, a synthetic growth hormone-releasing peptide, has been proven to possess cardioprotective actions through its binding to the growth hormone secretagogue receptor (GHSR) 1a and the non-GHSR receptor CD36. However, its effect on myocardial ischemia/reperfusion (I/R) injury has not been fully clarified in vivo. We aimed to determine whether hexarelin treatment could protect cardiomyocytes from I/R injury and to examine the underlying mechanisms. In vivo hearts of male SD rats underwent 30 minutes of ischemia by left coronary artery ligation followed by reperfusion...
March 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28318085/inflammatory-double-hit-model-of-temporomandibular-joint-disorder-with-elevated-ccl2-cxcl9-cxcl10-rantes-and-behavioural-hypersensitivity-in-tnfr1-r2-mice
#6
S L McIlwrath, R Nesemeier, F Ma, H S Oz, L Zhang, K N Westlund
BACKGROUND: Patients with temporomandibular joint disorders (TMD), reactive arthritis and rheumatoid arthritis often have combined etiology of hereditary and microenvironmental factors contributing to joint pain. Multiple clinical and animal studies indicate 'double-hit' inflammatory insults can cause chronic inflammation. The first inflammatory insult primes the immune system and subsequent insults elicit amplified responses. The present 'double hit' study produced a chronic orofacial pain model in mice with genetic deletion of both TNFα receptors (TNFR1/R2-/-), investigating the main nociceptive signalling pathways in comparisons to wild type mice...
March 20, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28315675/low-intensity-training-and-the-c5a-complement-antagonist-nox-d21-rescue-the-mdx-phenotype-through-modulation-of-inflammation
#7
Janek Hyzewicz, Jun Tanihata, Mutsuki Kuraoka, Yuko Nitahara-Kasahara, Teiva Beylier, Urs T Ruegg, Axel Vater, Shin'ichi Takeda
Inflammatory events occurring in dystrophic muscles contribute to the progression of Duchenne muscular dystrophy (DMD). Low-intensity training (LIT) attenuates the phenotype of mdx mice, an animal model for DMD. Therefore, we postulated that LIT could have anti-inflammatory properties. We assessed levels of inflammatory cytokines and infiltrated immune cells in gastrocnemius muscle of mdx mice after LIT. We detected high levels of complement component C5a, chemokine ligand (CCL) 2, CD68(+) monocytes/macrophages, and proinflammatory M1 macrophages in muscles of mdx mice...
March 15, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28301545/implication-of-the-intestinal-microbiome-as-a-potential-surrogate-marker-of-immune-responsiveness-to-experimental-therapies-in-autoimmune-diabetes
#8
James C Needell, Charles A Dinarello, Diana Ir, Charles E Robertson, Sarah M Ryan, Miranda E Kroehl, Daniel N Frank, Danny Zipris
Type 1 diabetes (T1D) is an autoimmune proinflammatory disease with no effective intervention. A major obstacle in developing new immunotherapies for T1D is the lack of means for monitoring immune responsiveness to experimental therapies. The LEW1.WR1 rat develops autoimmunity following infection with the parvovirus Kilham rat virus (KRV) via mechanisms linked with activation of proinflammatory pathways and alterations in the gut bacterial composition. We used this animal to test the hypothesis that intervention with agents that block innate immunity and diabetes is associated with a shift in the gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28299830/repeated-water-avoidance-stress-induces-visceral-hypersensitivity-role-of-il-1-il-6-and-peripheral-corticotropin-releasing-factor
#9
Tsukasa Nozu, Saori Miyagishi, Rintaro Nozu, Kaoru Takakusaki, Toshikatsu Okumura
BACKGROUND AND AIM: Repeated water avoidance stress (WAS) induces visceral hypersensitivity. Additionally, it is also known to activate corticotropin-releasing factor (CRF), mast cells and pro-inflammatory cytokines systems, but their precise roles on visceral sensation have not been determined definitely. The aim of the study was to explore this issue. METHODS: Abdominal muscle contractions induced by colonic balloon distention, i.e. visceromotor response (VMR) was detected electrophysiologically in conscious rats...
March 15, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28298024/reduction-of-inflammation-after-administration-of-interleukin-1-receptor-antagonist-following-aneurysmal-subarachnoid-hemorrhage-results-of-the-subcutaneous-interleukin-1ra-in-sah-scil-sah-study
#10
James Galea, Kayode Ogungbenro, Sharon Hulme, Hiren Patel, Sylvia Scarth, Margaret Hoadley, Karen Illingworth, Catherine J McMahon, Nikolaos Tzerakis, Andrew T King, Andy Vail, Stephen J Hopkins, Nancy Rothwell, Pippa Tyrrell
OBJECTIVE Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating cerebrovascular event with long-term morbidity and mortality. Patients who survive the initial bleeding are likely to suffer further early brain injury arising from a plethora of pathological processes. These may result in a worsening of outcome or death in approximately 25% of patients and may contribute to longer-term cognitive dysfunction in survivors. Inflammation, mediated by the cytokine interleukin-1 (IL-1), is an important contributor to cerebral ischemia after diverse forms of brain injury, including aSAH...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28295247/targeting-c3a-c5a-receptors-inhibits-human-mesangial-cell-proliferation-and-alleviates-iga-nephropathy-in-mice
#11
Ying Zhang, Xianli Yan, Ting Zhao, Qihe Xu, Qi Peng, Ruimin Hu, Songxia Quan, Yali Zhou, Guolan Xing
Complement activation has a deep pathogenic influence in IgA nephropathy (IgAN). C3a and C5a, small cleavage fragments generated by complement activation, are key mediators of inflammation. The fragments exert broad pro-inflammatory effects by binding to specific receptors (C3aR and C5aR, respectively). However, no studies thus far have investigated the effects of C3a, C5a and their receptors on IgAN. We observed that C3aR and C5aR antagonists repressed IgA-induced cell proliferation and IL-6 and MCP-1 production in cultured human mesangial cells (HMCs)...
March 15, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28294424/therapeutic-regulation-of-systemic-inflammation-in-xenograft-recipients
#12
Hayato Iwase, Hong Liu, Tao Li, Zhongquiang Zhang, Bingsi Gao, Hidetaka Hara, Martin Wijkstrom, Cassandra Long, Ryan Saari, David Ayares, David K C Cooper, Mohamed B Ezzelarab
Inflammation is known to preclude tolerance after transplantation. We have previously shown that systemic inflammation in xenograft recipients (SIXR) precedes activation of coagulation in the absence of T cell responses. Accordingly, SIXR may amplify innate and adaptive immune responses against xenografts after pig-to-primate xenotransplantation, even with efficient immunosuppressive therapy. We evaluated the impact of anti-inflammatory agents on pro-inflammatory cytokines and chemokines in pig artery patch and heart xenograft recipients...
March 12, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28283331/the-role-of-foxo1-in-interleukin-1%C3%AE-induced-autostimulation-in-retina-endothelial-cells-and-retinas-of-diabetic-rats
#13
Lina Wu, Feng Guo, Yang Wu, Qingzhu Wang, Xiaojun Ma, Yanyan Zhao, Guijun Qin
Diabetic retinopathy is a chronic, low-grade inflammatory disease. The present study aimed to investigate the effect of forkhead transcription factor O1 (FoxO1) expression on interleukin-1β (IL-1β)-induced autostimulation, both in vitro in human retina microvascular endothelial cells (HRMECs), and in vivo in retinas isolated from streptozotocin-induced diabetic rats. High-glucose (HG) and recombinant IL-1β treatment were both shown to increase the expression of FoxO1 and IL-1β in HRMECs in a dose-dependent manner...
March 7, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28275350/blockade-of-p2x4-receptors-inhibits-neuropathic-pain-related-behavior-by-preventing-mmp-9-activation-and-consequently-pronociceptive-interleukin-release-in-a-rat-model
#14
Agnieszka M Jurga, Anna Piotrowska, Wioletta Makuch, Barbara Przewlocka, Joanna Mika
Neuropathic pain is still an extremely important problem in today's medicine because opioids, which are commonly used to reduce pain, have limited efficacy in this type of pathology. Therefore, complementary therapy is needed. Our experiments were performed in rats to evaluate the contribution of the purinergic system, especially P2X4 receptor (P2X4R), in the modulation of glia activation and, consequently, the levels of nociceptive interleukins after chronic constriction injury (CCI) of the right sciatic nerve, a rat model of neuropathic pain...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28261571/targeting-angiotensin-ii-type-1-receptor-at1r-inhibits-the-harmful-phenotype-of-plasmodium-specific-cd8-t-cells-during-blood-stage-malaria
#15
João L Silva-Filho, Celso Caruso-Neves, Ana A S Pinheiro
CD8(+) T-cell response is critical in the pathogenesis of cerebral malaria during blood-stage. Our group and other have been shown that angiotensin II (Ang II) and its receptor AT1 (AT1R), a key effector axis of renin-angiotensin system (RAS), have immune regulatory effects on T cells. Previously, we showed that inhibition of AT1R signaling protects mice against the lethal disease induced by Plasmodium berghei ANKA infection However, most of the Ang II/AT1R actions were characterized by using only pharmacological approaches, the effects of which may not always be due to a specific receptor blockade...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28259175/pleiotrophin-regulates-microglia-mediated-neuroinflammation
#16
Rosalía Fernández-Calle, Marta Vicente-Rodríguez, Esther Gramage, Jimena Pita, Carmen Pérez-García, Marcel Ferrer-Alcón, María Uribarri, María P Ramos, Gonzalo Herradón
BACKGROUND: Pleiotrophin (PTN) is a cytokine found highly upregulated in the brain in different disorders characterized by overt neuroinflammation such as neurodegenerative diseases, drug addiction, traumatic injury, and ischemia. In the present work, we have explored whether PTN modulates neuroinflammation and if Toll-like receptor 4 (TLR4), crucial in the initiation of an immune response, is involved. METHODS: In immunohistochemistry assays, we studied lipopolysaccharide (LPS, 7...
March 4, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28257435/idelalisib-and-caffeine-reduce-suppression-of-t-cell-responses-mediated-by-activated-chronic-lymphocytic-leukemia-cells
#17
Barry D Hock, Sean A MacPherson, Judith L McKenzie
Chronic lymphocytic leukemia (CLL) is associated with T cell dysfunction. Activated CLL cells are found within the lymphoid tumor micro-environment and overcoming immuno-suppression induced by these cells may improve anti-CLL immune responses. However, the mechanisms by which activated CLL cells inhibit T cell responses, and reagents targeting such mechanisms have not been identified. Here we demonstrate that the ability of in vitro activated CLL cells to suppress T cell proliferation is not reversed by the presence of ecto-nuclease inhibitors or blockade of IL-10, PD-1 and CTLA-4 pathways...
2017: PloS One
https://www.readbyqxmd.com/read/28252571/interleukin-1-receptor-antagonist-polymorphism-and-birth-timing-pathway-analysis-among-african-american-women
#18
Shannon L Gillespie, Jeremy L Neal, Lisa M Christian, Laura A Szalacha, Donna O McCarthy, Pamela J Salsberry
BACKGROUND: Timing of birth is a major determinant of newborn health. African American women are at increased risk for early birth, particularly via the inflammatory pathway. Variants of the IL1RN gene, which encode the interleukin-1 receptor antagonist (IL-1Ra) protein, are implicated in early birth. The biological pathways linking these variables remain unclear. Evidence also suggests that inflammatory pathways differ by race; however, studies among African American women are lacking...
March 2017: Nursing Research
https://www.readbyqxmd.com/read/28248533/the-effect-of-apelin-on-the-functions-of-peritoneal-macrophages
#19
V N Izgüt-Uysal, B Gemici, I Birsen, N Acar, I Üstünel
Apelin, the endogenous ligand of the G protein-coupled receptor (APJ), plays an important role in the physiological response to homeostatic perturbations. The aim of the present study was to investigate the effect of apelin on the functions of peritoneal macrophages. A double staining immunofluorescence technique was used to determine the expression of APJ in peritoneal macrophages. Rat peritoneal macrophages were randomly divided into three groups: control, apelin and apelin+F13A. A significant decrease in phagocytic and chemotactic activity of peritoneal macrophages resulted when the macrophages were incubated with [Pry(1)]-Apelin-13 (10 ng/ml)...
February 28, 2017: Physiological Research
https://www.readbyqxmd.com/read/28243146/p2y12-receptor-mediated-activation-of-spinal-microglia-and-p38mapk-pathway-contribute-to-cancer-induced-bone-pain
#20
Mingjuan Liu, Ming Yao, Hanqi Wang, Longsheng Xu, Ying Zheng, Bing Huang, Huadong Ni, Shijie Xu, Xuyan Zhou, Qingquan Lian
BACKGROUND: Cancer-induced bone pain (CIBP) is one of the most challenging clinical problems due to a lack of understanding the mechanisms. Recent evidence has demonstrated that activation of microglial G-protein-coupled P2Y12 receptor (P2Y12R) and proinflammatory cytokine production play an important role in neuropathic pain generation and maintenance. However, whether P2Y12R is involved in CIBP remains unknown. METHODS: The purpose of this study was to investigate the role of P2Y12R in CIBP and its molecular mechanisms...
2017: Journal of Pain Research
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