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https://www.readbyqxmd.com/read/28418334/juvenile-idiopathic-arthritis
#1
Kenan Barut, Amra Adrovic, Sezgin Şahin, Özgür Kasapçopur
Juvenile idiopathic arthritis is the most common chronic rheumatic disease of unknown aetiology in childhood and predominantly presents with peripheral arthritis. The disease is divided into several subgroups, according to demographic characteristics, clinical features, treatment modalities and disease prognosis. Systemic juvenile idiopathic arthritis, which is one of the most frequent disease subtypes, is characterized by recurrent fever and rash. Oligoarticular juvenile idiopathic arthritis, common among young female patients, is usually accompanied by anti-nuclear antibodie positivity and anterior uveitis...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28402587/methotraxate-loaded-hybrid-nanoconstructs-target-vascular-lesions-and-inhibit-atherosclerosis-progression-in-apoe-mice
#2
Cinzia Stigliano, Maricela R Ramirez, Jaykrishna V Singh, Santosh Aryal, Jaehong Key, Elvin Blanco, Paolo Decuzzi
Atherosclerosis is an inflammatory disorder characterized by the progressive thickening of blood vessel walls eventually resulting in acute vascular syndromes. Here, intravenously injectable hybrid nanoconstructs are synthesized for tempering immune cell inflammation locally and systemically. Lipid and polymer chains are nanoprecipitated to form 100 nm spherical polymeric nanoconstructs (SPNs), loaded with methotrexate (MTX) and subsequently labeled with Cu(64) and fluorescent probes for combined nuclear/optical imaging...
April 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28399931/pilot-study-comparing-the-childhood-arthritis-rheumatology-research-alliance-carra-systemic-juvenile-idiopathic-arthritis-consensus-treatment-plans
#3
Yukiko Kimura, Sriharsha Grevich, Timothy Beukelman, Esi Morgan, Peter A Nigrovic, Kelly Mieszkalski, T Brent Graham, Maria Ibarra, Norman Ilowite, Marisa Klein-Gitelman, Karen Onel, Sampath Prahalad, Marilynn Punaro, Sarah Ringold, Dana Toib, Heather Van Mater, Jennifer E Weiss, Pamela F Weiss, Laura E Schanberg
OBJECTIVES: To assess the feasibility of studying the comparative effectiveness of the Childhood Arthritis and Rheumatology Research Alliance (CARRA) consensus treatment plans (CTPs) for systemic Juvenile Idiopathic Arthritis (JIA) using an observational registry. METHODS: Untreated systemic JIA patients enrolled in the CARRA Registry were begun on one of 4 CTPs chosen by the treating physician and patient/family (glucocorticoid [GC] alone; methotrexate [MTX] ± GC; IL1 inhibitor [IL1i] ± GC; IL6 inhibitor [IL6i] ± GC)...
April 11, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28396011/suppression-of-nfat5-mediated-inflammation-and-chronic-arthritis-by-novel-%C3%AE%C2%BAb-binding-inhibitors
#4
Eun-Jin Han, Hyun Young Kim, Naeun Lee, Nam-Hoon Kim, Seung-Ah Yoo, H Moo Kwon, Dae-Myung Jue, Yune-Jung Park, Chul-Soo Cho, Tran Quang De, Dae Young Jeong, Hee-Jong Lim, Woo Kyu Park, Ge Hyeong Lee, Heeyeong Cho, Wan-Uk Kim
Nuclear factor of activated T cells 5 (NFAT5) has been implicated in the pathogenesis of various human diseases, including cancer and arthritis. However, therapeutic agents inhibiting NFAT5 activity are currently unavailable. To discover NFAT5 inhibitors, a library of >40,000 chemicals was screened for the suppression of nitric oxide, a direct target regulated by NFAT5 activity, through high-throughput screening. We validated the anti-NFAT5 activity of 198 primary hit compounds using an NFAT5-dependent reporter assay and identified the novel NFAT5 suppressor KRN2, 13-(2-fluoro)-benzylberberine, and its derivative KRN5...
March 31, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28391422/osteogenic-sarcoma-systemic-chemotherapy-options-for-localized-disease
#5
REVIEW
Douglas J Harrison, Cindy L Schwartz
Treatment for osteosarcoma, the most common malignant tumor of bone in children and adolescents, has not changed in decades. Treatment is multimodal, employing neoadjuvant chemotherapy followed by aggressive and complete surgical resection to achieve negative margins and a prolonged course of adjuvant chemotherapy. The primary tumor is usually successfully managed via surgery, but micrometastases are likely present in most patients at diagnosis. Death is the result of tumor recurrence in the lungs or more rarely in other bones despite aggressive treatment regimens and is likely attributable to innate resistance to chemotherapy...
April 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28388816/adipose-tissue-macrophages-in-rheumatoid-arthritis-prevalence-disease-related-indicators-and-associations-with-cardiometabolic-risk-factors
#6
Jon T Giles, Antony W Ferrante, Rachel Broderick, Afshin Zartoshti, Janine Rose, Kendall Downer, Hui-Zhu Zhang, Robert J Winchester
Objective Adipose tissue macrophages (ATMs) are a potent source of inflammatory cytokines with profound effects on adipose tissue function, yet their potential role in rheumatoid arthritis (RA) pathobiology is largely unstudied. Methods Periumbilical subcutaneous adipose tissue was obtained from 36 RA patients and 22 non-RA controls frequency matched on demographics and BMI. Samples were stained for the macrophage marker CD68 and the average proportion of ATMs, crown-like structures (CLSs: peri-adipocyte aggregates of three or more ATMs), and fibrosis were compared between groups...
April 7, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28376538/-hepatic-manifestation-of-a-macrophage-activation-syndrome-mas
#7
Michael Nagel, Andreas Schwarting, Beate K Straub, Peter R Galle, Tim Zimmermann
Background Elevated liver values are the most common pathological laboratory result in Germany. Frequent findings, especially in younger patients, are nutritive- or medicamentous- toxic reasons, viral or autoimmune hepatitis. A macrophage activation syndrome (MAS) may manifest like a viral infectious disease with fever, hepatosplenomegaly and pancytopenia and is associated with a high mortality. It is based on an enhanced activation of macrophages with increased cytokine release, leading to organ damage and multi-organ failure...
April 4, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28371624/dextran-sulfate-nanoparticles-as-a-theranostic-nanomedicine-for-rheumatoid-arthritis
#8
Roun Heo, Dong Gil You, Wooram Um, Ki Young Choi, Sangmin Jeon, Jong-Sung Park, Yuri Choi, Seunglee Kwon, Kwangmeyung Kim, Ick Chan Kwon, Dong-Gyu Jo, Young Mo Kang, Jae Hyung Park
With the aim of developing nanoparticles for targeted delivery of methotrexate (MTX) to inflamed joints in rheumatoid arthritis (RA), an amphiphilic polysaccharide was synthesized by conjugating 5β-cholanic acid to a dextran sulfate (DS) backbone. Due to its amphiphilic nature, the DS derivative self-assembled into spherical nanoparticles (220 nm in diameter) in aqueous conditions. The MTX was effectively loaded into the DS nanoparticles (loading efficiency: 73.0%) by a simple dialysis method. Interestingly, the DS nanoparticles were selectively taken up by activated macrophages, which are responsible for inflammation and joint destruction, via scavenger receptor class A-mediated endocytosis...
March 26, 2017: Biomaterials
https://www.readbyqxmd.com/read/28347533/influence-of-drugs-carried-in-lipid-nanoparticles-in-coronary-disease-of-rabbit-transplanted-heart
#9
Lucas R Barbieri, Domingos D Lourenço-Filho, Elaine R Tavares, Priscila O Carvalho, Paulo S Gutierrez, Raul C Maranhão, Noedir A G Stolf
BACKGROUND: Coronary allograft vasculopathy is an inflammatory-proliferative process that compromises the long-term success of heart transplantation and currently has no effective prevention and treatment. Lipid nanoparticles, termed LDE can carry chemotherapeutic agents in the circulation and concentrates them in the heart. METHODS: Twenty-eight rabbits fed a cholesterol-rich diet and submitted to heterotopic heart transplantation were treated with cyclosporine A (10 mg/kg daily) and allocated to four groups of 7 animals treated with intravenous LDE-methotrexate (MTX; 4 mg/kg weekly), with LDE-paclitaxel (PACLI; 4 mg/kg weekly), or with LDE-PACLI (4 mg/kg weekly) and LDE-MTX (4 mg/kg weekly)...
March 24, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28288894/endogenous-inspired-biomineral-installed-hyaluronan-nanoparticles-as-ph-responsive-carrier-of-methotrexate-for-rheumatoid-arthritis
#10
Md Mahmudul Alam, Hwa Seung Han, Shijin Sung, Jin Hee Kang, Keum Hee Sa, Hasan Al Faruque, Jungwan Hong, Eon Jeong Nam, In San Kim, Jae Hyung Park, Young Mo Kang
Methotrexate (MTX), an anchor drug for rheumatoid arthritis (RA), has been suffered from refractoriness and high toxicity limiting effective dosage. To mitigate these challenges, the ability to selectively deliver MTX to arthritis tissue is a much sought-after modality for the treatment of RA. In this study, we prepared mineralized nanoparticles (MP-HANPs), composed of PEGylated hyaluronic acid (P-HA) as the hydrophilic shell, 5β-cholanic acid as the hydrophobic core, and calcium phosphate (CaP) as the pH-responsive mineral...
March 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28274253/phase-1b-randomized-double-blind-study-of-namilumab-an-anti-granulocyte-macrophage-colony-stimulating-factor-monoclonal-antibody-in-mild-to-moderate-rheumatoid-arthritis
#11
T W J Huizinga, A Batalov, R Stoilov, E Lloyd, T Wagner, D Saurigny, B Souberbielle, E Esfandiari
BACKGROUND: Namilumab (AMG203) is an immunoglobulin G1 monoclonal antibody that binds with high affinity to the GM-CSF ligand. This was a phase 1b, randomized, double-blind study (PRIORA) to assess namilumab in active, mild-to-moderate rheumatoid arthritis (RA). The primary outcome was the safety and tolerability of repeated subcutaneous injections of namilumab in patients with mild-to-moderate RA. METHODS: Adults with mild-to-moderate RA on stable methotrexate doses for ≥12 weeks were eligible...
March 9, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28213566/a-randomised-phase-iib-study-of-mavrilimumab-a-novel-gm-csf-receptor-alpha-monoclonal-antibody-in-the-treatment-of-rheumatoid-arthritis
#12
Gerd R Burmester, Iain B McInnes, Joel Kremer, Pedro Miranda, Mariusz Korkosz, Jiri Vencovsky, Andrea Rubbert-Roth, Eduardo Mysler, Matthew A Sleeman, Alex Godwood, Dominic Sinibaldi, Xiang Guo, Wendy I White, Bing Wang, Chi-Yuan Wu, Patricia C Ryan, David Close, Michael E Weinblatt
OBJECTIVES: Despite the therapeutic value of current rheumatoid arthritis (RA) treatments, agents with alternative modes of action are required. Mavrilimumab, a fully human monoclonal antibody targeting the granulocyte-macrophage colony-stimulating factor receptor-α, was evaluated in patients with moderate-to-severe RA. METHODS: In a phase IIb study (NCT01706926), patients with inadequate response to ≥1 synthetic disease-modifying antirheumatic drug(s), Disease Activity Score 28 (DAS28)-C reactive protein (CRP)/erythrocyte sedimentation rate ≥3...
February 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28204893/gastrointestinal-system-manifestations-in-juvenile-systemic-lupus-erythematosus
#13
Hafize Emine Sönmez, Asuman Nur Karhan, Ezgi Deniz Batu, Yelda Bilginer, Ersin Gümüş, Hülya Demir, Aysel Yüce, Seza Özen
Systemic lupus erythematosus (SLE) is an autoimmune disease which may involve gastrointestinal system (GIS). The aim of this study was to present GIS manifestations of pediatric SLE patients. The medical files of 69 children with SLE followed between January 2011 and January 2016 were reviewed. All fulfilled the Systemic Lupus International Collaborating Clinics criteria. All patients (≤18 years of age) with GIS manifestations were included. GIS manifestations were observed in 19 (27.5%) out of 69 SLE patients and present at the time of SLE diagnosis in 13 (68...
February 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28042319/scavenger-receptor-mediated-targeted-treatment-of-collagen-induced-arthritis-by-dextran-sulfate-methotrexate-prodrug
#14
Modi Yang, Jianxun Ding, Xiangru Feng, Fei Chang, Yinan Wang, Zhongli Gao, Xiuli Zhuang, Xuesi Chen
Rheumatoid arthritis (RA) is a chronic autoimmune disorder implicated in multiple joint affection and even disability. The activated macrophages perform a predominant role in onset and persistence of RA. Scavenger receptor (SR), one of several receptors overexpressed on the activated macrophages, is a specific biomarker for targeted therapy of numerous chronic inflammation diseases like RA. In this work, dextran sulfate-graft-methotrexate conjugate (DS-g-MTX) is synthesized and characterized, which exhibits excellent targetability to SR on the activated RAW 264...
2017: Theranostics
https://www.readbyqxmd.com/read/27878656/mille-modis-morimur-we-die-in-a-thousand-ways
#15
Gaspar Banfalvi
Dying cells subjected to apoptotic programs are engulfed by neighboring cells or by professional phagocytes, without inflammation or immunological reactions in the tissue where apoptosis takes place. Apoptotic cells release danger-associated project signals to their neighbours, through different molecular patterns, stimulate antigen production and immune responses. Microenvironmental effects with several functional consequences indicate that cell death is a complex process and may take place in several ways...
November 23, 2016: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/27856937/allylpyrocatechol-attenuates-collagen-induced-arthritis-via-attenuation-of-oxidative-stress-secondary-to-modulation-of-the-mapk-jak-stat-and-nrf2-ho-1-pathways
#16
Soumita De, Alak Manna, Sunanda Kundu, Sritama De Sarkar, Uttara Chatterjee, Tuhinadri Sen, Subrata Chattopadhyay, Mitali Chatterjee
Rheumatoid arthritis (RA), an inflammatory autoimmune disorder, is characterized by synovial hyperplasia and bony destruction. The pathogenesis of RA includes redox dysregulation, concomitant with increased levels of proinflammatory mediators. As the ability of allylpyrocatechol (APC), a phytoconstituent of Piper betle leaves, to alleviate oxidative stress has been demonstrated in patients with RA, its antiarthritic activity was evaluated in an animal model of arthritis, and the underlying mechanism(s) of action clarified...
February 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27826329/recurrent-macrophage-activation-syndrome-since-toddler-age-in-an-adolescent-boy-with-hla-b27-positive-juvenile-ankylosing-spondylitis
#17
Joon Hyeong Park, Yu Mi Seo, Seung Beom Han, Ki Hwan Kim, Jung Woo Rhim, Nack Gyun Chung, Myung Shin Kim, Jin Han Kang, Dae Chul Jeong
Recurrent macrophage activation syndrome (MAS) is very rare. We present the case of an adolescent boy with human leukocyte antigen (HLA) B27-positive ankylosing spondylitis (AS), who experienced episodes of recurrent MAS since he was a toddler. A 16-year-old boy was admitted because of remittent fever with pancytopenia and splenomegaly after surgical intervention for an intractable perianal abscess. He had been diagnosed with hemophagocytic lymphohistiocytosis (HLH) 4 different times, which was well controlled with intravenous immunoglobulin and steroids since the age of 3...
October 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/27540750/inflammation-caused-by-nanosized-delivery-systems-is-there-a-benefit
#18
Muhammad Sarfraz, Wilson Roa, Nadia Bou-Chacra, Raimar Löbenberg
Secondary macrophage cytotoxicity induced by nanoparticles was described before. The study aim was to investigate the role of secondary cytotoxic effect in a macrophage-lung cancer coculture model after nanoparticle treatment in the presence and absence of anti-inflammatory drugs. An in vitro coculture model composed of confluent alveolar macrophage MH-S and A-549 lung cancer cells separated by a 0.4 μm porous membrane was used in the study. Macrophages were treated with two sizes of gelatin nanoparticles and two sizes of poly(isobutyl cyanoacrylate) (PIBCA) nanoparticles, with and without doxorubicin as a chemotherapeutic drug...
September 6, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27524686/methotrexate-locally-released-from-poly-e-caprolactone-implants-inhibition-of-the-inflammatory-angiogenesis-response-in-a-murine-sponge-model-and-the-absence-of-systemic-toxicity
#19
Leandro Gonzaga De Oliveira, Letîcia Aparecida Figueiredo, Gabriella Maria Fernandes-Cunha, De Miranda Marina Barcelos, Laser Antonio Machado, Gisele Rodrigues Dasilva, De Moura Sandra Aparecida Lima
In this study, the methotrexate (MTX) was incorporated into the poly(e-caprolactone) (PCL) to design implants (MTX PCL implants) aiming the local treatment of inflammatory angiogenesis diseases without causing systemic side effects. Sponges were inserted into the subcutaneous tissue of mice as a framework for fibrovascular tissue growth. After 4days, MTX PCL implants were also introduced, and anti-inflammatory, antiangiogenic, and antifibrogenic activities of the MTX were determined. MTX reduced the vascularization (hemoglobin content), the neutrophil, and monocyte/macrophage infiltration (MPO and NAG activities, respectively), and the collagen deposition in sponges...
November 2015: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27515780/recurrent-lipoatrophic-panniculitis-of-children
#20
A Torrelo, L Noguera-Morel, A Hernández-Martín, D Clemente, J M Barja, L Buzón, D Azorín, A A de Jesús, J C López-Robledillo, I Colmenero, H Kutzner, R Goldbach-Mansky, L Requena
BACKGROUND: Recurrent panniculitis in children with lipoatrophy has been loosely described and reported under different names, but has never been systematically evaluated by immunohistochemical stains. OBJECTIVE: To depict the profile of children with recurrent idiopathic panniculitis. METHODS: Study of clinical, histopathological and immunohistochemical features in five cases with recurrent idiopathic panniculitis. RESULTS: Five children with repeated attacks of painful subcutaneous nodules in association with fever, malaise and abdominal pain or arthralgia, with subsequent lipoatrophy were reviewed...
March 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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