Anti-Hyperuricemic Effect of Iron Oxide Nanoparticles against Monosodium Urate Crystals Induced Gouty Arthritis in BALB/c Mice

2021 ◽  
Author(s):  
Mubin Mustafa Kiyani ◽  
Nurain Baig Moghul ◽  
Maisra Azhar Butt ◽  
Hamza Rehman ◽  
Ramsha Masood ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Gouty Arthritis ◽  
Oxide Nanoparticles ◽  
Monosodium Urate ◽  
Monosodium Urate Crystals ◽  
Urate Crystals

scholarly journals Tu-Teng-Cao Extract Alleviates Monosodium Urate-Induced Acute Gouty Arthritis in Rats by Inhibiting Uric Acid and Inflammation

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Rongmei Yao ◽  
Zihan Geng ◽  
Xin Mao ◽  
Yanyan Bao ◽  
Shanshan Guo ◽  
...  
Keyword(s):  
Uric Acid ◽  
Gouty Arthritis ◽  
Histological Evaluation ◽  
Therapeutic Effects ◽  
Monosodium Urate ◽  
Cell Degeneration ◽  
Acute Gouty Arthritis ◽  
Monosodium Urate Crystals ◽  
Potassium Oxonate ◽  
Urate Crystals

Gouty arthritis is an inflammatory joint disease closely related to hyperuricemia. It is characterized by deposition of monosodium urate crystals in the joints, resulting in an intense inflammatory process and pain. Control of hyperuricemia and anti-inflammation treatments are the main therapeutic approaches. However, the commonly used drugs for inhibiting uric acid and acute gouty arthritis have obvious gastrointestinal and renal toxicity; thus, there is an urgency to develop new alternative therapeutic drugs. An extract of Tu-Teng-Cao (TTC), a compound drug used in traditional Chinese medicine, has been widely applied to the clinical treatment of arthritis. In this study, we investigated the therapeutic effects of TTC on gouty arthritis. In this study, an animal model of acute gouty arthritis with hyperuricemia was established using potassium oxonate and monosodium urate crystals. After treatment with TTC, the results showed obvious therapeutic effects on the rat model of acute gouty arthritis. The treatment significantly attenuated the degree of ankle swelling, inflammation, and dysfunction index, and the levels of proinflammatory cytokines. In addition, TTC has significant antihyperuricemia activity in rats with hyperuricemia induced by potassium oxonate. Histological evaluation showed that TTC relieved pathological damage in rats with acute gouty arthritis induced by monosodium urate crystals. All the groups treated with TTC showed improvement in cartilage degeneration, cell degeneration, synovial hyperplasia, and inflammatory cell invasion in the ankle joint of rats. TTC significantly alleviated swelling, inflammation, and bleeding of the renal corpuscle and convoluted tubules of rats. The results of this study suggest that TTC is capable of treating gouty arthritis and decreasing ankle injury through the control of uric acid and inflammation.

scholarly journals Could MicroRNAs be Regulators of Gout Pathogenesis?

2015 ◽  
Vol 36 (6) ◽  
pp. 2085-2092 ◽  
Author(s):  
Yangang Wang ◽  
Donghua Xu ◽  
Bin Wang ◽  
Xu Hou
Keyword(s):  
Inflammatory Arthritis ◽  
Inflammatory Diseases ◽  
Gouty Arthritis ◽  
Noncoding Rnas ◽  
Monosodium Urate ◽  
Regulate Gene Expression ◽  
Acute Gouty Arthritis ◽  
Monosodium Urate Crystals ◽  
Urate Crystals

MicroRNAs (miRNAs) are a class of noncoding RNAs that mainly negatively regulate gene expression. miRNAs have important roles in many diseases, including inflammatory diseases. Gout is a common arthritis caused by deposition of monosodium urate crystals within joints. Recent studies suggested that miRNAs may be involved in the development of inflammatory arthritis, including acute gouty arthritis. In the present review, we systemically discuss relevant publications in order to provide a better understanding on the possible role of miRNAs in gout. miRNAs may act as regulators of gout pathogenesis via several pathways. Targeting miRNAs may be a promisingstrategy in the treatment of gout.

scholarly journals Citrobacter koseri causing osteomyelitis in a diabetic foot with concomitant acute gouty arthritis successfully treated with ertapenem

2019 ◽  
Vol 12 (7) ◽  
pp. e230432
Author(s):  
Dillon Tinevez ◽  
Nebojsa Nick Knezevic
Keyword(s):  
Septic Arthritis ◽  
Gouty Arthritis ◽  
Acute Gout ◽  
Monosodium Urate ◽  
Acute Gouty Arthritis ◽  
Monosodium Urate Crystals ◽  
X Ray ◽  
Fluid Analysis ◽  
Wound Culture ◽  
Urate Crystals

We present an elderly diabetic man with left hallux pain and drainage who was initially diagnosed with acute gouty arthritis using the diagnostic rule for acute gout and monosodium urate crystals presented on synovial fluid analysis. Further investigation with surgical debridement, plain X-ray, MRI and wound culture revealed concomitant Citrobacter koseri septic arthritis with osteomyelitis. C. koseri is considered an opportunistic infection that rarely causes musculoskeletal infections. Acute gouty arthritis and septic arthritis are rarely seen occurring concomitantly in the same joint and are often difficult to differentiate due to similar findings on exam and imaging. The present case illustrates that osteomyelitis with an opportunistic organism can present concomitantly with acute gouty arthritis, and the diagnosis of one should not exclude the other.

scholarly journals Effects of Berberine on NLRP3 and IL-1βExpressions in Monocytic THP-1 Cells with Monosodium Urate Crystals-Induced Inflammation

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Ya-Fei Liu ◽  
Cai-Yu-Zhu Wen ◽  
Zhe Chen ◽  
Yu Wang ◽  
Ying Huang ◽  
...  
Keyword(s):  
Western Blot ◽  
Gouty Arthritis ◽  
Critical Factor ◽  
Mrna Levels ◽  
Monosodium Urate ◽  
Model Group ◽  
Monosodium Urate Crystals ◽  
Protein Levels ◽  
Regulatory Effects ◽  
Urate Crystals

Background.Urate crystals-induced inflammation is a critical factor during the initiation of gouty arthritis. Berberine is well known for its anti-inflammatory activity. However, the underlying effects of berberine on monosodium urate crystals-induced inflammation remain obscure.Objectives.This study is set to explore the protective effect and mechanism of berberine on monosodium urate crystals-induced inflammation in human monocytic THP-1 cells.Methods.The mRNA levels of NLRP3 and IL-1βwere measured by Real-Time PCR, and the protein levels of NLRP3 and IL-1βwere determined by ELISA, Western blot, and immunofluorescence.Results.The NLRP3 and IL-1βexpressions were significantly increased in model group compared to that in normal group (P<0.05). Meanwhile, there was significant reduction in the expressions of NLRP3 and IL-1βmRNA in groups 6.25 μM berberine and 25 μM berberine when compared with model group (P<0.05).Conclusions.Therefore, berberine alleviates monosodium urate crystals-induced inflammation by downregulating NLRP3 and IL-1βexpressions. The regulatory effects of berberine may be related to the inactivation of NLRP3 inflammasome.

scholarly journals Monosodium Urate Crystals regulate a unique JNK-dependent macrophage metabolic and inflammatory response

2021 ◽  
Author(s):  
Isidoro Cobo ◽  
Anyan Cheng ◽  
Jessica Saich ◽  
Roxana Coras ◽  
Alyssa Torres ◽  
...  
Keyword(s):  
Target Genes ◽  
Gouty Arthritis ◽  
Inflammasome Activation ◽  
Acute Gout ◽  
Monosodium Urate ◽  
Monosodium Urate Crystals ◽  
Slc Transporters ◽  
Biochemical Assays ◽  
Urate Crystals

How macrophages are programmed to respond to monosodium urate crystals (MSUc) is incompletely understood partly due to the use of a toll-like receptor-induced priming step. Here, using genome wide transcriptomic analysis and biochemical assays we demonstrate that MSUc alone induces an in vitro metabolic and inflammatory transcriptional program in both human and murine macrophages markedly distinct from that induced by LPS. Genes uniquely up-regulated in response to MSUc belonged to lipids, glycolysis, and transport of small molecules via SLC transporters pathways. Sera from individuals and mice with acute gouty arthritis provided further evidence for this metabolic rewiring. This distinct macrophage activation may explain the initiating mechanisms in acute gout flares and is regulated through JUN binding to the promoter of target genes through activation of JNK (but not by P38) in a process that is independent of inflammasome activation. Finally, pharmacological JNK inhibition limited MSUc-induced inflammation in animal models of acute gouty inflammation.

TARGETING CYCLIN B1 WITH ANTISENSE OLIGONUCLETOTIDES- COATED SUPERPARAMAGNETIC IRON OXIDE NANOPARTICLES

2018 ◽  
Vol 6 (10) ◽  
Author(s):  
Hosam Zaghloul ◽  
Doaa A. Shahin ◽  
Ibrahim El- Dosoky ◽  
Mahmoud E. El-awady ◽  
Fardous F. El-Senduny ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Cellular Uptake ◽  
Superparamagnetic Iron Oxide ◽  
Cyclin B1 ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Mcf7 Cells ◽  
M Phase ◽  
The Impact

Antisense oligonucleotides (ASO) represent an attractive trend as specific targeting molecules but sustain poor cellular uptake meanwhile superparamagnetic iron oxide nanoparticles (SPIONs) offer stability of ASO and improved cellular uptake. In the present work we aimed to functionalize SPIONs with ASO targeting the mRNA of Cyclin B1 which represents a potential cancer target and to explore its anticancer activity. For that purpose, four different SPIONs-ASO conjugates, S-M (1–4), were designated depending on the sequence of ASO and constructed by crosslinking carboxylated SPIONs to amino labeled ASO. The impact of S-M (1–4) on the level of Cyclin B1, cell cycle, ROS and viability of the cells were assessed by flowcytometry. The results showed that S-M3 and S-M4 reduced the level of Cyclin B1 by 35 and 36%, respectively. As a consequence to downregulation of Cyclin B1, MCF7 cells were shown to be arrested at G2/M phase (60.7%). S-M (1–4) led to the induction of ROS formation in comparison to the untreated control cells. Furthermore, S-M (1–4) resulted in an increase in dead cells compared to the untreated cells and SPIONs-treated cells. In conclusion, targeting Cyclin B1 with ASO-coated SPIONs may represent a specific biocompatible anticancer strategy.

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