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Rheumatoid arthrits

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https://www.readbyqxmd.com/read/30096961/in-vivo-and-in-vitro-anti-arthritic-effects-of-cardenolide-rich-and-caffeoylquinic-acid-rich-fractions-of-periploca-forrestii
#1
Ting Liu, Xia Wang, Yan-Ling He, Yang Wang, Li Dong, Xue Ma, Lin Zheng, Chun-Hua Liu, Guang-Cheng Wang, Jiang Zheng, Yan-Yu Lan, Yong-Jun Li
Periploca forrestii Schltr. ( P. forrestii ) is a species used in Traditional Chinese Medicine (TCM) known as "Miao medicine", and has a long history of use in the treatment of rheumatism, rheumatoid arthritis (RA), and joint pain. The present study aimed to evaluate the anti-arthritis effects of the cardenolide-rich and caffeoylquinic acid-rich fractions (CDLFs and CQAFs) of P. forrestii in collagen-induced arthritic (CIA) rats, and defined the mechanisms of therapeutic action in MH7A cells treated with TNF-α...
August 9, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/30081592/the-micro-rna-expression-profiles-of-autoimmune-arthritis-reveal-novel-biomarkers-of-the-disease-and-therapeutic-response
#2
Steven Dudics, Shivaprasad H Venkatesha, Kamal D Moudgil
Rheumatoid arthritis (RA) is a chronic autoimmune disease of the joints affecting about 0.3⁻1% of the population in different countries. About 50⁻60 percent of RA patients respond to presently used drugs. Moreover, the current biomarkers for RA have inherent limitations. Consequently, there is a need for additional, new biomarkers for monitoring disease activity and responsiveness to therapy of RA patients. We examined the micro-RNA (miRNA) profile of immune (lymphoid) cells of arthritic Lewis rats and arthritic rats treated with celastrol, a natural triterpenoid...
August 5, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/30081142/peptide-directed-liposomal-delivery-improves-the-therapeutic-index-of-an-immunomodulatory-cytokine-in-controlling-autoimmune-arthritis
#3
Rakeshchandra R Meka, Shivaprasad H Venkatesha, Kamal D Moudgil
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of the synovial tissue of the joints. Inadequately controlled disease may cause severe joint damage and deformity. Currently, the anti-arthritic drugs are given systemically, and therefore, they are widely distributed to other organs that are not the intended therapeutic target. Accordingly, using a particular dose/regimen of a drug to achieve an effective local concentration of the drug in arthritic joints may lead to expected adverse effects involving other organs...
August 3, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/30075589/integrative-effect-of-yoga-practice-in-patients-with-knee-arthritis-a-prisma-compliant-meta-analysis
#4
Yiguo Wang, Shibi Lu, Ruomei Wang, Peng Jiang, Feng Rao, Bo Wang, Yong Zhu, Yihe Hu, Jianxi Zhu
BACKGROUND: Benefits of yoga practice in patients with knee osteoarthritis and rheumatoid arthritis remains controversial. This study performs a meta-analysis to quantify the efficiency of yoga exercise for patients pain reduction, functional recovery, and general wellbeing. METHODS: A computerized search of PubMed and Embase was performed to identify relevant studies. The outcome measures were pain, stiffness, and physical function. Two investigators identified eligible studies and extracted data independently...
August 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30060740/combination-of-nf-kb-targeted-sirna-and-methotrexate-in-a-hybrid-nanocarrier-towards-the-effective-treatment-in-rheumatoid-arthritis
#5
Weifeng Duan, Huan Li
BACKGROUND: The transcription factor NF-kB plays an important role in the pathogenesis of rheumatoid arthritis (RA). Effective treatment of RA is hindered due to the lack of specificity of small molecules in the inflamed joints. In this study, we aimed to develop a unique hybrid-nanoparticles system comprised of calcium phosphate/liposome to deliver NF-kB-targeted siRNA and methotrexate (MTX) to diseased site. RESULTS: We have successfully demonstrated that the combination of siRNA and MTX in a calcium phosphate/liposome-based hybrid nanocarrier could effectively treat the RA...
July 30, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/30059491/mir-145-5p-increases-osteoclast-numbers-in-vitro-and-aggravates-bone-erosion-in-collagen-induced-arthritis-by-targeting-osteoprotegerin
#6
Yaqing Chen, Xiaoxue Wang, Mengchen Yang, Wendong Ruan, Wei Wei, Dongmei Gu, Jing Wang, Xinling Guo, Lingxia Guo, Yuhua Yuan
BACKGROUND Osteoprotegerin (OPG) inhibits bone resorption and binds with strong affinity to receptor activator of NF κB ligand (RANKL), thereby preventing RANKL from binding to its receptor RANK. Osteoclasts have documented effects on bone erosion of rheumatoid arthritis (RA). The aim of this study was to examine the role of miR-145-5p in the regulation of RA osteoclast differentiation and bone erosion. MATERIAL AND METHODS Expression of microRNA-145-5p in human peripheral blood mononuclear cells (PBMC) and synovial tissue was assayed by real-time polymerase chain reaction (RT-PCR)...
July 30, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/30053832/a-bivalent-compound-targeting-ccr5-and-the-mu-opioid-receptor-treats-inflammatory-arthritis-pain-in-mice-without-inducing-pharmacologic-tolerance
#7
Raini Dutta, Mary M Lunzer, Jennifer L Auger, Eyup Akgün, Philip S Portoghese, Bryce A Binstadt
BACKGROUND: Pain accompanies rheumatoid arthritis and other chronic inflammatory conditions and is difficult to manage. Although opioids provide potent analgesia, chronic opioid use can cause tolerance and addiction. Recent studies have demonstrated functional interactions between chemokine and opioid receptor signaling pathways. Reported heterodimerization of chemokine and opioid receptors led our group to develop bivalent compounds that bind both types of receptors, with the goal of targeting opioids to sites of inflammation...
July 27, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/30049830/huntingtin-interacting-protein-1-hip1-regulates-arthritis-severity-and-synovial-fibroblast-invasiveness-by-altering-pdgfr-and-rac1-signalling
#8
Teresina Laragione, Max Brenner, Amit Lahiri, Erjing Gao, Carolyn Harris, Percio S Gulko
OBJECTIVES: While new treatments for rheumatoid arthritis (RA) have markedly improved disease control by targeting immune/inflammatory pathways, current treatments rarely induce remission, underscoring the need for therapies that target other aspects of the disease. Little is known about the regulation of disease severity and joint damage, which are major predictors of disease outcome, and might be better or complementary targets for therapy. In this study, we aimed to discover and characterise a new arthritis severity gene...
July 26, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/30047845/novel-tumor-necrosis-factor-%C3%AE-tnf-%C3%AE-inhibitors-from-small-molecule-library-screening-for-their-therapeutic-activity-profiles-against-rheumatoid-arthritis-using-target-driven-approaches-and-binary-qsar-models
#9
Mehreen Zaka, Bilal Haider Abbasi, Serdar Durdagi
Tumor necrosis factor alpha (TNF-α) is a multifunctional cytokine that acts as a central biological mediator for critical immune functions, including inflammation, infection, and antitumor responses. It plays pivotal role in auto-immune diseases like rheumatoid arthritis (RA). The synthetic antibodies etanercept, infliximab, and adalimumab are approved drugs for the treatment of inflammatory diseases bind to TNF-α directly, preventing its association with the tumor necrosis factor receptor (TNFR). These biologics causes serious side effects such as triggering an autoimmune anti-antibody response or the weakening of the body's immune defenses...
July 26, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/30046349/anti-inflammatory-antioxidative-and-hepatoprotective-effects-of-trans-%C3%AE-9-tetrahydrocannabinol-sesame-oil-on-adjuvant-induced-arthritis-in-rats
#10
Morouj Ismail, Hiba Hasan, Youmna El-Orfali, Hanan Ismail, Ghada Khawaja
Rheumatoid arthritis (RA) is a painful chronic autoimmune disease affecting the joints. Its first-line therapy, Methotrexate (MTX), although effective in ameliorating the progress of the disease, induces hepatotoxicity over long-term usage. Thus, seeking natural compounds with fewer side effects could be an alternative therapeutic approach. This study aimed to investigate the anti-inflammatory, antiarthritic, and antioxidative effects of synthetic trans -Δ9-tetrahydrocannabinol (Δ9-THC) dissolved in sesame oil (Dronabinol) against MTX in adjuvant-induced arthritis (AIA) rat model...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/30025850/comparative-study-of-anti-vegf-ranibizumab-and-interleukin-6-receptor-antagonist-tocilizumab-in-adjuvant-induced-arthritis
#11
Amany El-Shahawy Abdel-Maged, Amany M Gad, Amal Kamal Abdel-Aziz, Mohammad M Aboulwafa, Samar S Azab
Although the precise etiology of Rheumatoid arthritis (RA) remains obscure, heightened immune response is thought to play a vital role in provoking joint inflammation and bone erosion. This study aims at comparatively evaluating the effects of two monoclonal antibodies Ranibizumab (RANI) as anti-VEGF antibody and Tocilizumab (TCZ) as interleukin-6 receptor (IL-6R) antagonist, against adjuvant induced arthritis in rats. CFA-induced arthritic rats were treated for three consecutive weeks with Methotrexate (MTX), TCZ and RANI monotherapy...
July 17, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/30007231/triptolide-inhibits-the-inflammatory-activities-of-neutrophils-to-ameliorate-chronic-arthritis
#12
Guangrui Huang, Kai Yuan, Qingqing Zhu, Shan Zhang, Qingyi Lu, Mengmeng Zhu, Honghao Sheng, Ruipeng Yu, Guangbin Luo, Anlong Xu
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by cellular infiltration into the joints and cartilage destruction. Neutrophils play a crucial role in the pathogenesis of RA. Triptolide (TP) is a bioactive compound derived from Tripterygium wilfordii Hook F, which has been used in folk medicine as a treatment for a variety of inflammatory disorders, including RA, for many centuries. Previous studies have shown that TP possesses anti-arthritic activity. However, the anti-arthritic mechanism of TP remains to be fully defined...
July 5, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/30003114/hei-gu-teng-zhuifenghuoluo-granule-modulates-il-12-signal-pathway-to-inhibit-the-inflammatory-response-in-rheumatoid-arthritis
#13
Kang Zheng, Zexu Chen, Wen Sun, Bin Liu, Danping Fan, Qingqing Guo, Hui Luo, Jiawen Shen, Li Li, Xiaojuan He, Shuang Kou, Xiaoya Li, Guoming Pang, Hongchuan Zhao, Cheng Lu
Rheumatoid arthritis (RA) is a type of chronic systemic inflammatory disease; it has a very complicated pathogenesis, and multiple pathological changes are implicated. Traditional Chinese medicine (TCM) like Tripterygium wilfordii Hook. F. or Sinomenium acutum (Thunb.) Rehd et Wils. has been extensively used for centuries in the treatment of arthritic diseases and been reported effective for relieving the severity of RA. Hei-Gu-Teng Zhuifenghuoluo granule (HGT) which contains Periploca forrestii Schltr. , Sinomenium acutum (Thunb...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/30002993/methionine-attenuates-the-intensity-of-rheumatoid-arthritis-by-downregulating-nf-%C3%AE%C2%BAb-and-inos-expression-in-neonatal-rats
#14
Shi Wang, Shenglan Tian, Mingzhe Li, Zhichao Li
The present study investigated the anti-arthritic effects of methionine in neonatal rats. Rats were divided into four groups, with six rats in each group. The rats were administered methionine (150- or 300-mg/kg body weight) orally for 45 consecutive days. The expression levels of catalase, superoxide dismutase (SOD), reduced glutathione (GSH), lipid peroxidation, glutathione peroxidase (Gpx), prostaglandin E2 (PGE2 ), matrix metalloproteinase-3, uric acid, nitric oxide (NO), ceruloplasmin, inducible nitric oxide synthase (iNOS), and nuclear factor (NF)-κB were determined in rheumatoid arthritis-induced neonatal rats...
July 2018: 3 Biotech
https://www.readbyqxmd.com/read/30001644/acupuncture-alleviates-rheumatoid-arthritis-by-immune-network-modulation
#15
Yuan Xu, Shouhai Hong, Xue Zhao, Shenjun Wang, Zhifang Xu, Shasha Ding, Kuo Zhang, Yiping Zhang, Lianjie Xu, Nannan Yu, Tianyi Zhao, Yawen Yan, Fuming Yang, Yangyang Liu, Kun Yu, Baohu Liu, Yi Guo, Guangchang Pang
Rheumatoid arthritis (RA) is a chronic, systemic autoimmune inflammatory and debilitating disease that involves the systemic imbalance of the immune network. Previous studies have shown that acupuncture can help treat RA. However, its specific mechanisms are not fully understood. Thus, the present study was designed to clarify the mechanisms of acupuncture acted on RA via immune network modulation using complete Freund's adjuvant (CFA)-induced arthritic rats. Results revealed that manual acupuncture (MA) could alleviate the inflammation and pain of infected joints...
2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29997506/gut-sourced-vasoactive-intestinal-polypeptide-induced-by-the-activation-of-%C3%AE-7-nicotinic-acetylcholine-receptor-substantially-contributes-to-the-anti-inflammatory-effect-of-sinomenine-in-collagen-induced-arthritis
#16
MengFan Yue, XinYu Zhang, YanNong Dou, ZhiFeng Wei, Yu Tao, YuFeng Xia, Yue Dai
Sinomenine has long been used for the treatment of rheumatoid arthritis in China. However, its anti-inflammatory mechanism is still debatable because the in vitro minimal effective concentration (≥250 μM) is hardly reached in either synovium or serum after oral administration at a therapeutic dose. Recent findings suggest that the α7 nicotinic acetylcholine receptor (α7nAChR) might mediate the inhibitory effect of sinomenine on macrophage activation, which attracts us to explore the anti-arthritis mechanism of sinomenine by taking neuroendocrine-inflammation axis into consideration...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29982962/novel-anti-arthritic-mechanisms-of-polydatin-in-complete-freund-s-adjuvant-induced-arthritis-in-rats-involvement-of-il-6-stat-3-il-17-and-nf-%C3%B0%C2%BAb
#17
Kamel M Kamel, Amany M Gad, Suzan M Mansour, Marwa M Safar, Hala M Fawzy
Articular manifestations are the main hall mark for rheumatoid arthritis; inflammation and oxidative stress are involved in its pathogenesis. This study was designed to figure out the possible therapeutic potential of polydatin on experimentally induced arthritis in rats. Polydatin (POLY) was administered (200 mg/kg, p.o.) for 21 days to complete Freund's adjuvant (CFA; 0.1 ml, s.c.)-induced arthritic rats. Meanwhile, methotrexate (MTX; 0.75 mg/kg, i.p.) was given as a reference standard disease-modifying anti-rheumatic drug (DMARD)...
July 7, 2018: Inflammation
https://www.readbyqxmd.com/read/29966420/development-of-a-janus-kinase-inhibitor-prodrug-for-the-treatment-of-rheumatoid-arthritis
#18
Xin Wei, Jianbo Wu, Gang Zhao, Josselyn Galdamez, Subodh M Lele, Xiaoyan Wang, Yanzhi Liu, Dhruvkumar M Soni, P Edward Purdue, Ted R Mikuls, Steven R Goldring, Dong Wang
While highly efficacious in treating rheumatoid arthritis (RA), the approved Janus kinase (JAK) inhibitor, Tofacitinib (Tofa, CP-690 550), has dose-dependent toxicities that limit its clinical application. In this study, we have examined whether a prodrug design that targets arthritic joints would enhance Tofa's therapeutic efficacy, which may provide an opportunity for future development of safer Tofa dosing regimens. A prodrug of Tofa (P-Tofa) was synthesized by conjugating the drug to the N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer via an acid cleavable carbamate linker...
July 16, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29932925/integrin-alpha9-subunit-blockade-suppresses-collagen-induced-arthritis-with-minimal-systemic-immunomodulation
#19
Shingo Sugahara, Kaori Hanaoka, Nobuchika Yamamoto
Integrin, alpha9 subunit (hereinafter, alpha9) has been identified as a novel putative therapeutic target for rheumatoid arthritis (RA). Support for this target comes from the observations that alpha9 is overexpressed both in the joints of RA patients and in animal models of arthritis. In the experimental models, the increase in alpha9 expression precedes the onset of arthritic symptoms. The current study presents data on the pharmacological profile of an anti-alpha9 antibody in a collagen-induced arthritis (CIA) mouse model...
August 15, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29920358/ephedra-gerardiana-aqueous-ethanolic-extract-and-fractions-attenuate-freund-complete-adjuvant-induced-arthritis-in-sprague-dawley-rats-by-downregulating-pge2-cox2-il-1%C3%AE-il-6-tnf-%C3%AE-nf-kb-and-upregulating-il-4-and-il-10
#20
Ambreen Malik Uttra, Alamgeer, Muhammad Shahzad, Arham Shabbir, Shah Jahan
ETHNOPHARMACOLOGICAL RELEVANCE: The whole plant, roots and stems of Ephedra gerardiana (Family Ephedraceae) have long been used as a folk remedy to treat rheumatism and painful joints in Northern Areas of Pakistan. AIM OF THE STUDY: The purpose of study was to observe the preventive efficacy of Ephedra gerardiana (EG) aerial parts in treating rheumatoid arthritis using Freund's complete adjuvant (FCA) induced arthritis in rat model and to determine its possible mechanism of action...
June 18, 2018: Journal of Ethnopharmacology
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