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https://www.readbyqxmd.com/read/29793098/evaluation-of-analgesic-and-anti-inflammatory-activities-of-rubia-cordifolia-l-by-spectrum-effect-relationships
#1
REVIEW
Cai-Hong Shen, Cui-Ting Liu, Xiao-Juan Song, Wei-Ya Zeng, Xiao-Ying Lu, Zuo-Liang Zheng, Jie-Pan, Ruo-Ting Zhan, Ping-Yan
The objective of the current work was to evaluate the spectrum-effect relationships between high-performance liquid chromatography fingerprints and analgesic and anti-inflammatory effects of Rubia cordifolia L. extract (RCE), and to identify active components of RCE. Chemical fingerprints of ten batches of RC from various sources were obtained by HPLC, and similarity and hierarchical clustering analyses were carried out. Pharmacodynamic assays were performed in adjuvant-induced arthritis rat model to assess the analgesic and anti-inflammatory properties of RCE...
May 17, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29792965/characterization-sulfated-modification-and-bioactivity-of-a-novel-polysaccharide-from-millettia-dielsiana
#2
Zhonghua Wang, Tongqiang Cai, Xipu He
Millettia dielsiana is a traditional herb medicine to treat rheumatic arthritis and gynecological diseases. In this study, a novel polysaccharide (MDP1) with a molecular weight of 139.54 kDa was isolated from Millettia dielsiana by DEAE-52 cellulose chromatography. Its sulfated derivative (S-MDP1) was prepared by the chlorosulfonic acid-pyridine method. Structural analysis indicated that MDP1 was a pectic polysaccharide and did not exhibit a triple helical conformation. In vitro, MDP1 and S-MDP1 had protective effect on H2 O2 -induced PC12 cells death...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792851/collagen-induced-arthritis-in-dark-agouti-rats-as-a-model-for-study-of-immunological-sexual-dimorphisms-in-the-human-disease
#3
Mirjana Dimitrijević, Nevena Arsenović-Ranin, Biljana Bufan, Mirjana Nacka-Aleksić, Mirjana Lazarević Macanović, Petar Milovanović, Marija Đurić, Jelena Sopta, Gordana Leposavić
Collagen-induced arthritis (CIA) is a frequently used animal model of rheumatoid arthritis, human autoimmune disease that exhibits clear sex bias in incidence and clinical course. Female Dark Agouti rats immunized for CIA showed also greater incidence and higher arthritic score than their male counterparts. The study investigated sex differences in mechanisms controlling the primary immune responses in draining lymph nodes (dLNs), as a factor contributing to this dimorphism. The higher frequencies of CD4 + CD25 + Foxp3- cells, presumably activated effector T (Teff) cells, and IL-17+, IFN-γ + and IL-17 + IFN-γ + T cells were found in female comapared with male rat dLNs...
May 21, 2018: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29792084/lethal-disseminated-tuberculosis-in-patients-under-biological-treatment-two-clinical-cases-and-a-short-review
#4
Elena Dantes, Doina Ecaterina Tofolean, Ariadna Petronela Fildan, Liviu Craciun, Elena Dumea, Ioan Tiberiu Tofolean, Laura Mazilu
Tumour necrosis factor (TNF)-α inhibitors are highly used in Romania for the treatment of autoimmune disorders, such as rheumatoid arthritis (RA), psoriasis, inflammatory bowel diseases, and ankylosing spondylitis. Biological therapy using TNF-α inhibitors is very effective but is associated with an increased risk of opportunistic infections, including active tuberculosis. Here, two cases are presented of patients with RA and psoriasis under biological therapy who developed very aggressive forms of disseminated tuberculosis, with a rapid progression to death...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29791754/atp-triggers-a-robust-intracellular-ca-2-mediated-signalling-pathway-in-human-synovial-fibroblasts
#5
Kondo C, R B Clark, T Y Kim, Belke D, Banderali U, R T Szerencsei, A H Jalloul, P P M Schnetkamp, Spitzer Kw, Giles Wr
NEW FINDINGS: What is the central question of this study? In human articular joints, the synovial fibroblast HSF cell population has essential functions including secretion of lubricants. We address some remaining questions concerning activation-secretion coupling by characterizing the main [Ca2+ ]i signalling pathways activated by ATP. What is the main finding and its importance? In HSF ATP acts through a linked G-protein (Gq ) and phospholipase C signalling mechanisms to produce IP-3 which markedly enhances release of Ca2+ from the endoplasmic reticulum...
May 23, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29791652/inflammatory-myopathy-in-the-context-of-an-unusual-overlapping-laminopathy
#6
Cristina Guillín-Amarelle, Sofía Sánchez-Iglesias, Antonio Mera, Elena Pintos, Ana Castro-Pais, Leticia Rodríguez-Cañete, Julio Pardo, Felipe F Casanueva, David Araújo-Vilar
Laminopathies are genetic disorders associated with alterations in nuclear envelope proteins, known as lamins. The LMNA gene encodes lamins A and C, and LMNA mutations have been linked to diseases involving fat (type 2 familial partial lipodystrophy [FPLD2]), muscle (type 2 Emery-Dreifuss muscular dystrophy [EDMD2], type 1B limb-girdle muscular dystrophy [LGMD1B], and dilated cardiomyopathy), nerves (type 2B1 Charcot-Marie-Tooth disease), and premature aging syndromes. Moreover, overlapping syndromes have been reported...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29791587/association-study-of-aff1-rs340630-polymorphism-with-genetic-susceptibility-to-rheumatoid-arthritis-in-chinese-population
#7
Qing-Qing Sun, Dong-Jin Hua, Si-Chao Huang, Han Cen, Li Zhou, Song Shao
This study was performed to examine whether the AF4/FMR2 family, member 1 (AFF1) rs340630 polymorphism is involved in the genetic background of rheumatoid arthritis (RA) in a Chinese population. Two different study groups of RA patients and controls (328 RA patients and 449 healthy controls in the first study group; 232 RA patients and 313 controls in the second study group) were included in our study. Overall, there was no significant difference in either genotype (P=0.71 and 0.64 in the first and second study group, respectively) nor allele (in the first study group: A vs G, P=0...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29791439/multi-biomarker-disease-activity-score-as-a-predictor-of-disease-relapse-in-patients-with-rheumatoid-arthritis-stopping-tnf-inhibitor-treatment
#8
Marjan Ghiti Moghadam, Femke B G Lamers-Karnebeek, Harald E Vonkeman, Peter M Ten Klooster, Janneke Tekstra, Annemarie M Schilder, Henk Visser, Eric H Sasso, David Chernoff, Willem F Lems, Dirk-Jan van Schaardenburg, Robert Landewe, Hein J Bernelot Moens, Timothy R D J Radstake, Piet L C M van Riel, Mart A F J van de Laar, Tim L Jansen
OBJECTIVE: Successfully stopping or reducing treatment for patients with rheumatoid arthritis (RA) in low disease activity (LDA) may improve cost-effectiveness of care. We evaluated the multi-biomarker disease activity (MBDA) score as a predictor of disease relapse after discontinuation of TNF inhibitor (TNFi) treatment. METHODS: 439 RA patients who were randomized to stop TNFi treatment in the POET study were analyzed post-hoc. Three indicators of disease relapse were assessed over 12 months: 1) restarting TNFi treatment, 2) escalation of any DMARD therapy and 3) physician-reported flare...
2018: PloS One
https://www.readbyqxmd.com/read/29791314/analgesic-anti-inflammatory-and-anti-arthritic-properties-of-aqueous-and-methanolic-stem-bark-extracts-from-nauclea-pobeguinii-rubiacee-in-rats
#9
Mbiantcha Marius, Tsafack Eric Gonzal, Ateufack Gilbert, Nana Yousseu William, Bomba Tatsinkou Francis Désiré, Djuichou Nguemnang Stephanie Flore, Mbankou Ngassam Sorelle, Wego Kamgaing Marius Tresor
Background Nauclea pobeguinii is a plant species found in the centre region of Cameroon. The stem bark of this plant is traditionally used to ease pain and cure inflammation. Method This study was undertaken to evaluate the effects of doses 150 and 300 mg/kg of the aqueous and methanolic stem bark extracts from Nauclea pobeguinii on acute pain, acute and chronic inflammation induced by formalin and arthritis induced by zymosan A in rats. Oxidative stress parameters such as catalase, malondialdehyde and nitric oxide were measured in rats subjected to chronic inflammation...
May 23, 2018: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/29790686/the-expression-of-selected-molecular-markers-of-immune-tolerance-in-psoriatic-patients
#10
Joanna Bartosińska, Joanna Purkot, Małgorzata Kowal, Anna Michalak-Stoma, Dorota Krasowska, Grażyna Chodorowska, Krzysztof Giannopoulos
BACKGROUND: Psoriasis is a chronic autoinflammatory disease whose underlying molecular mechanisms remain unclear. The disease is mediated by the cells and molecules of both the innate and adaptive immune systems. Some T cell surface molecules, including neuropilin-1 (NRP1), programmed death 1 (PD-1) and the human leukocyte antigen G (HLA-G), are known to play a role in the maintenance of immune tolerance. OBJECTIVES: The aim of this study was to investigate HLA-G, NRP1 and programmed cell death gene (PDCD1) mRNA expression in psoriatic patients...
April 24, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790395/hyaluronic-acid-conjugated-ph-sensitive-liposomes-for-targeted-delivery-of-prednisolone-on-rheumatoid-arthritis-therapy
#11
Virgínia M Gouveia, José Lopes-de-Araújo, Sofia A Costa Lima, Cláudia Nunes, Salette Reis
AIM: The treatment of rheumatoid arthritis remains a challenge as available therapies still entail the risk of deleterious off-target effects. The present study describes hyaluronic acid-conjugated pH-sensitive liposomes as an effective drug delivery-targeting strategy to synovial cells. MATERIALS & METHODS: Therapeutic, cytotoxic and targeting potential of developed liposomes were studied in vitro using macrophages and fibroblasts cell lines. RESULTS & CONCLUSION: Results suggest an enhanced cellular uptake of conjugated liposomes, mainly mediated by caveolae- and clathrin-dependent endocytosis...
May 2018: Nanomedicine
https://www.readbyqxmd.com/read/29790372/folate-receptor-targeted-mixed-polysialic-acid-micelles-for-combating-rheumatoid-arthritis-in-vitro-and-in-vivo-evaluation
#12
Nan Zhang, Chunyu Xu, Na Li, Shasha Zhang, Lingling Fu, Xiao Chu, Haiying Hua, Xianghui Zeng, Yongxing Zhao
OBJECTIVE: Rheumatoid arthritis (RA) is associated with chronic inflammation. The suppression of inflammation is key to the treatment of RA. Glucocorticoids (GCs) are classical anti-inflammatory drugs with several disadvantages such as poor water solubility and low specificity in the body. These disadvantages are the reasons for the quick elimination and side effects of GCs in vivo. Micelles are ideal carriers for GCs delivery to inflamed synovium. We set out to improve the targeting and pharmacokinetic profiles of GCs by preparing a targeting micelle system...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29790305/lyme-disease-associated-igg4-autoantibodies-correlate-with-synovial-pathology-in-antibiotic-refractory-lyme-arthritis
#13
Katherine B Sulka, Klemen Strle, Jameson T Crowley, Robert B Lochhead, Robert Anthony, Allen C Steere
OBJECTIVE: To determine whether IgG subclasses of B. burgdorferi antibodies differ from those of 3 Lyme disease (LD)-associated autoantibodies. METHODS: The IgG antibody subclasses were determined by ELISA in serum samples from 215 patients representative of each of the 3 stages of Lyme disease. Antibody and cytokine profiles were measured in matched serum and synovial fluid (SF) samples from Lyme arthritis patients. Synovial tissue from patients with antibiotic-refractory arthritis was examined for histologic features, IgG subclasses of plasma cells, and mRNA subclass expression...
May 23, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29790294/jak-stat-blockade-alters-synovial-bioenergetics-mitochondrial-function-and-pro-inflammatory-mediators-in-rheumatoid-arthritis
#14
Trudy McGarry, Carl Orr, Sarah Wade, Monika Biniecka, Siobhan Wade, Lorna Gallagher, Candice Low, Douglas J Veale, Ursula Fearon
OBJECTIVE: To examine the effect of tofacitinib on metabolic activity, mitochondrial function and pro-inflammatory mechanisms in Rheumatoid Arthritis. METHODS: Ex-vivo RA synovial explants and primary RA synovial fibroblasts (RAFLS) were cultured with tofacitinib (1μM). RAFLS bioenergetics was assessed using the XF24-Flux-analyser, and key metabolic genes by real-time PCR. Mitochondrial function was assessed using specific cell fluorescent probes and by mitochondrial gene arrays...
May 23, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29790291/the-eyes-have-it-a-rheumatologist-s-view-of-uveitis
#15
REVIEW
James T Rosenbaum, Andrew D Dick
Uveitis is defined as intraocular inflammation. It is an extra-articular manifestation of many forms of joint disease which include spondyloarthritis, juvenile idiopathic arthritis, and Behcet's disease. Rheumatologists may be asked to consult on patients with uveitis in order to identify an associated systemic illness. Diagnoses such as spndyloarthritis, sarcoidosis, and interstitial nephritis with uveitis are frequently overlooked by referring ophthalmologists. Alternatively rheumatologists may be asked to help manage the immunosuppression including biologics which can be required to treat a subset of patients with uveitis...
May 23, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29790131/efficacy-and-safety-outcomes-for-originator-tnf-inhibitors-and-biosimilars-in-rheumatoid-arthritis-and-psoriasis-trials-a-systematic-literature-review
#16
REVIEW
Robert J Moots, Cinzia Curiale, Danielle Petersel, Catherine Rolland, Heather Jones, Eduardo Mysler
OBJECTIVE: Regulatory approval of biosimilar versions of originator biotherapeutics requires that new biological products be highly similar to originator products, with no clinically meaningful differences in safety, purity, and potency. In some trials of biosimilars of tumor necrosis factor inhibitors for the treatment of rheumatoid arthritis (RA) and plaque psoriasis (PsO), pre-specified margins for efficacy and safety have been met, but differences in treatment responses between pivotal originator trials and biosimilar trials have been noted...
May 22, 2018: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/29790108/the-impact-of-dietary-habits-on-the-pathogenesis-of-rheumatoid-arthritis-a-case-control-study
#17
Masoume Rambod, Mohammadali Nazarinia, Farahnaz Raieskarimian
It has not been clear what kinds and how much nutrients could be harmful, preventive, or healthful for development of rheumatoid arthritis. This study aimed to determine the impact of dietary habits on the pathogenesis of rheumatoid arthritis. This case-control study was conducted on a total of 500 rheumatoid arthritis patients and 500 healthy controls refereed to three clinics of Shiraz University of Medical Sciences in 2015-2016. Convenience sampling was used for data collection in both case and control groups...
May 22, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29789229/cryoglobulinemic-vasculitis-and-psoriatic-arthritis-case-report-of-an-unusual-association
#18
Lizeth Yamile Urrea-Pineda, Sebastián Gómez-Jiménez, Daniel Jaramillo-Arroyave, Carlos Horacio Muñoz-Vahos, Adriana Lucía Vanegas-García, Gloria Vasquéz, Mauricio Restrepo-Escobar, Luis Alonso González-Naranjo
We report the case of a 47-year-old man with a 9-year history of psoriatic arthritis (PsA) in whom we detected renal involvement, hypocomplementemia, peripheral neuropathy, acral necrotic lesions and positive cryoglobulins. The results of the diagnosis led us to conclude that the clinical picture corresponded to cryoglobulinemic vasculitis concomitant with PsA. In addition, we present a review of the literature on the presence of these two diseases in a single patient.
May 19, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29789121/aire-is-not-essential-for-regulating-neuroinflammatory-disease-in-mice-transgenic-for-human-autoimmune-diseases-associated-mhc-class-ii-genes-hla-dr2b-and-hla-dr4
#19
Saisha A Nalawade, Niannian Ji, Itay Raphael, Andrew Pratt, Ellen Kraig, Thomas G Forsthuber
The human autoimmune disease-associated HLA alleles HLA-DR2b (DRB1*1501) and HLA-DR4 (DRB1*0401) are strongly linked to increased susceptibility for multiple sclerosis (MS) and rheumatoid arthritis (RA), respectively. The underlying mechanisms are not fully understood, but these MHC alleles may shape the repertoire of pathogenic T cells via central tolerance. The transcription factor autoimmune regulator (AIRE) promotes central T cell tolerance via ectopic expression of tissue-specific antigens (TSAs). Aire deficiency in humans causes autoimmune polyendocrinopathy syndrome type 1 (APS1), and Aire knockout mice (Aire-/- ) develop spontaneous autoimmune pathology characterized by multi-organ lymphocytic infiltrates...
May 14, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29789008/pharmacological-effects-of-n-2-2-2-2-6-dichlorophenyl-amino-phenyl-acetyl-oxy-ethyl-hyaluronamide-diclofenac-etalhyaluronate-si-613-a-novel-sodium-hyaluronate-derivative-chemically-linked-with-diclofenac
#20
Keiji Yoshioka, Tomochika Kisukeda, Ryoji Zuinen, Yosuke Yasuda, Kenji Miyamoto
BACKGROUND: Osteoarthritis (OA) is the most common joint disorder worldwide and one of the leading causes of disability in the elderly. We have investigated the novel sodium hyaluronate derivative chemically linked with diclofenac (DF), diclofenac etalhyaluronate (SI-613), which is a potentially safer and more effective treatment for OA knee pain. In this study, we evaluated the pharmacological effects of SI-613 in experimental arthritis models. METHODS: We compared the analgesic and anti-inflammatory effects of intra-articularly administered SI-613, hyaluronic acid (HA), and of orally administered diclofenac sodium (DF-Na) in rat silver nitrate-induced arthritis model and rabbit antigen-induced arthritis model...
May 22, 2018: BMC Musculoskeletal Disorders
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