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https://www.readbyqxmd.com/read/28929115/anti-gouty-arthritis-and-antihyperuricemia-effects-of-sunflower-helianthus-annuus-head-extract-in-gouty-and-hyperuricemia-animal-models
#1
Lanzhou Li, Meiyu Teng, Yange Liu, Yidi Qu, Yuanzhu Zhang, Feng Lin, Di Wang
This study was performed to investigate the therapeutic effects and possible mechanisms of sunflower (Helianthus annuus) head extract (SHE) on gout. First, the components of sunflower head powder and SHE were analyzed systematically. SHE, especially SHEB (extracted with 20% ethanol and 80% double-distilled water), strongly suppressed the swelling of the ankles in rats with acute gout induced by monosodium urate (MSU) crystals and reduced the levels of uric acid and xanthine oxidase (XO) in mice with hyperuricemia induced by oteracil potassium and yeast extract powder...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28927237/augmented-association-between-blood-pressure-and-proteinuria-in-hyperuricemic-patients-with-non-nephrotic-chronic-kidney-disease
#2
K Kohagura, M Kochi, T Miyagi, R Zamami, K Nagahama, K Yonemoto, Y Ohya
Background: Hyperuricemia (HU) may enhance susceptibility to hypertensive renal damage via disrupted autoregulation of glomerular hemodynamics. The effect of HU on the association between blood pressure (BP) and proteinuria remains unknown in patients with chronic kidney disease (CKD). Methods: In total, 109 patients with non-nephrotic CKD (55 men and 54 females) who underwent renal biopsy were recruited. Arteriolar hyalinosis was semiquantitatively assessed via arteriole grading...
September 13, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28920816/urolithiasis-in-free-ranging-and-captive-otters-lutra-lutra-and-aonyx-cinerea-in-europe
#3
Monika Bochmann, Stephan Steinlechner, Albrecht Hesse, Hans Henrik Dietz, Heike Weber
Between 1996 and 1998, 477 dead otters from different Central European countries were examined for urolithiasis, including 449 free-ranging Eurasian otters (Lutra lutra) as well as 17 Eurasian otters and 11 Asian small-clawed otters (Aonyx cinerea) from captivity. In the free-ranging specimens, uroliths (sand or stones) were found in 105 animals (23.4%), with no significant difference (P = 0.77) between the sexes. Uroliths were not present in any juveniles (n = 26) and urolithiasis was not considered the main cause of death in any individual...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28915828/microrna-488-and-920-regulate-the-production-of-proinflammatory-cytokines-in-acute-gouty-arthritis
#4
Weidong Zhou, Ying Wang, Rongfeng Wu, Yan He, Qun Su, Guixiu Shi
BACKGROUND: Gout is considered one of the most painful acute conditions caused by deposition of monosodium urate (MSU) crystals within joints. Recent studies have shown that interleukin (IL)-1β is a key inflammatory mediator in acute gouty arthritis (GA), and its level is regulated by microRNAs (miRNAs). However, the molecular mechanisms of the regulation remain unclear. METHODS: A miRNA microarray was used to analyze the miRNA expression profiles in peripheral white blood cells (WBCs) of patients with GA...
September 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28915657/the-prevalence-subtypes-and-associated-factors-of-hyperuricemia-in-lupus-nephritis-patients-at-chronic-kidney-disease-stages-1-3
#5
Simeng Liu, Yijun Gong, Hong Ren, Wen Zhang, Xiaonong Chen, Tong Zhou, Xiao Li, Nan Chen
There is a high prevalence of hyperuricemia (HUA) in the chronic kidney disease (CKD) population. However, there's a dearth of research on HUA's prevalence, subtypes, early detection, and treatment strategies of HUA in lupus nephritis (LN) patients. The aim of this study is to address these knowledge gaps. LN patients presenting to the Department of Nephrology at Shanghai Rui Jin Hospital from January 2011 to January 2016 were recruited. The effective sample size was derived using the power analysis. The demographic, clinical and laboratory characteristics of the LN patients with HUA were compared with those of patients without HUA...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28911646/evaluating-the-urate-lowering-effects-of-different-microbial-fermented-extracts-in-hyperuricemic-models-accompanied-with%C3%A2-a%C3%A2-safety-study
#6
Rong-Jane Chen, Mei-Huei Chen, Yen-Lin Chen, Ching-Mao Hsiao, Hsiu-Min Chen, Siao-Jhen Chen, Ming-Der Wu, Yi-Jen Yech, Gwo-Fang Yuan, Ying-Jan Wang
Uric acid (UA) is an end product of purine metabolism by the enzyme xanthine oxidase (XOD). Hyperuricemia is characterized by the accumulation of serum UA and is an important risk factor for gout and many chronic disorders. XOD inhibitors or uricase (catalyzes UA to the more soluble end product) can prevent these chronic diseases. However, currently available hypouricemic agents induce severe side effects. Therefore, we developed new microbial fermented extracts (MFEs) with substantial XOD inhibition activity from Lactobacillus (MFE-21) and Acetobacter (MFE-25), and MFE-120 with high uricase activity from Aspergillus...
July 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28904879/renoprotective-effects-of-febuxostat-compared-with-allopurinol-in-patients-with-hyperuricemia-a-systematic-review-and-meta-analysis
#7
Sollip Kim, Hyun-Jung Kim, Hyeong-Sik Ahn, Se Won Oh, Kum Hyun Han, Tae-Hyun Um, Chong-Rae Cho, Sang Youb Han
BACKGROUND: Hyperuricemia is reported to be related to rapid progression of renal function in patients with chronic kidney disease (CKD). Allopurinol, a uric acid lowering agent, protects renal progression. However, it is not widely used in patients with CKD because of its serious adverse event. Febuxostat can be alternatively used for patients who are intolerable to allopurinol. We aimed to determine renoprotective effect and urate-lowering effect between the two drugs. METHODS: We performed a systematic review and meta-analysis of randomized controlled trials to assess the effects of febuxostat compared to allopurinol in patients with hyperuricemia...
September 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28900555/the-utility-of-dual-energy-computed-tomography-in-musculoskeletal-imaging
#8
REVIEW
Sachin Khanduri, Aakshit Goyal, Bhumika Singh, Mriganki Chaudhary, Tushar Sabharwal, Shreshtha Jain, Hritik Sharma
The objective of this article is to review the mechanisms, advantages and disadvantages of dual energy computed tomography (DECT) over conventional tomography (CT) in musculoskeletal imaging as DECT provides additional information about tissue composition and artifact reduction. This provides clinical utility in detection of urate crystals, bone marrow edema, reduction of beam hardening metallic artifact, and ligament and tendon analysis.
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28892097/ligand-mediated-cytoplasmic-retention-of-the-ah-receptor-inhibits-macrophage-mediated-acute-inflammatory-responses
#9
Gulsum E Muku, Tejas S Lahoti, Iain A Murray, Michael A Podolsky, Kayla J Smith, Troy D Hubbard, Guray Kuzu, Krishne Gowda, Shantu G Amin, Gary H Perdew
The Ah receptor (AHR) has been shown to exhibit both inflammatory and anti-inflammatory activity in a context-specific manner. In vivo macrophage-driven acute inflammation models were utilized here to test whether the selective Ah receptor modulator 1-allyl-7-trifluoromethyl-1H-indazol-3-yl]-4-methoxyphenol (SGA360) would reduce inflammation. Exposure to SGA360 was capable of significantly inhibiting lipopolysaccharide (LPS)-mediated endotoxic shock in a mouse model, both in terms of lethality and attenuating inflammatory signaling in tissues...
September 11, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28891365/gout-in-a-rheumatology-clinic-results-of-eular-acr-guidelines-compliant-treatment
#10
O Slot
OBJECTIVE: Surveys of treatment results of gout in primary care have shown that less than 25% of patients reach the recommended treatment target (serum urate < 0.36 mmol/l). The aim of this study was to measure the results of a specialized European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) guidelines-based treatment of gout in a rheumatology clinic. METHOD: Data from consecutive new crystal-proven gout patients were analysed in a prospective observational study...
September 11, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28888218/impact-of-non-adherence-on-the-safety-and-efficacy-of-uric-acid-lowering-therapies-in-the-treatment-of-gout
#11
Daniel Hill-McManus, Elena Soto, Scott Marshall, Steven Lane, Dyfrig Hughes
AIMS: Dual-urate lowering therapy (ULT) with xanthine oxidase inhibitor and uricosuric medications is a treatment option for severe gout. Uricosurics can cause hyperuricosuria, a risk factor for nephrolithiasis and acute uric acid nephropathy. The aims of this study were to simulate the relation between suboptimal drug adherence and efficacy, and to quantify the risk of hyperuricosuria in gout patients receiving mono and dual-ULTs. METHODS: The impact of poor medication adherence was studied using 2-compartment PK models based on published evidence and a semi-mechanistic, 4-compartment pharmacodynamic (PD) model...
September 9, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28885290/spinal-gout-without-spinal-symptom-in-a-junior-school-student-a-case-report
#12
Danbin Wu, Jiajian Ma, Songsong Li, Jinwei Zhao, Ling Li
STUDY DESIGN: Case report OBJECTIVES.: We report a case of a 16-year-old boy with intermittent and migratory polyarthralgia, who made a diagnostic dilemma. SUMMARY OF BACKGROUND DATA: Spinal involvement without spinal symptom in gout seems to be rare. However, the relationship of spinal gout to symptoms is poorly understood. METHODS: Description of the case report. RESULTS: Laboratory findings can't explain his symptoms, however, a computed tomography of the pelvis revealed the presence of space-occupying lesion involving the left side of spine at L5-S1level, and the later biopsy revealed that was a urate crystal, which help us make the diagnosis of spinal gout...
September 6, 2017: Spine
https://www.readbyqxmd.com/read/28880687/tnf-%C3%AE-potentiates-uric-acid-induced-interleukin-1%C3%AE-il-1%C3%AE-secretion-in-human-neutrophils
#13
Kohei Yokose, Shuzo Sato, Tomoyuki Asano, Makiko Yashiro, Hiroko Kobayashi, Hiroshi Watanabe, Eiji Suzuki, Chikako Sato, Hideko Kozuru, Hiroshi Yatsuhashi, Kiyoshi Migita
OBJECTIVE: Monosodium urate (MSU) has been shown to promote interleukin-1β (IL-1β) secretion in human monocytes, but the priming signals for NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome pathway remains elusive. In this study, we investigated the role of Tumor necrosis factor-alpha (TNF-α) on MSU-mediated IL-1β induction in human neutrophils. METHODS: Human neutrophils were stimulated with MSU, in the presence or absence of TNF-α priming...
September 7, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28874151/effects-of-mollugo-pentaphylla-extract-on-monosodium-urate-crystal-induced-gouty-arthritis-in-mice
#14
Yun Mi Lee, Eun-Jung Shon, Ohn Soon Kim, Dong-Seon Kim
BACKGROUND: Gout is an inflammatory condition induced by the deposition of monosodium urate (MSU) crystals in joints and soft tissues, and it can lead to acute or chronic arthritis. MSU are pro-inflammatory stimuli that can initiate, amplify and sustain an intense inflammatory response. In this study, we evaluated the anti-inflammatory effect of an extract of Mollugo pentaphylla (MPE) on MSU-induced gouty arthritis in a mouse model. METHOD: An MSU crystal suspension (4 mg/50 μL) was injected intradermally into the right paw...
September 6, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28870626/immunoreactivity-of-urate-transporters-glut9-and-urat1-is-located-in-epithelial-cells-of-the-choroid-plexus-of-human-brains
#15
Naoya Uemura, Ryuta Murakami, Yoichi Chiba, Ken Yanase, Ryuji Fujihara, Masato Mashima, Koichi Matsumoto, Machi Kawauchi, Gotaro Shirakami, Masaki Ueno
It has been suggested that urate plays a protective role in neurons, while hyperuricemia is correlated with atherosclerosis and cardiovascular disease. However, whether there is a system that directly transports urate into the brain remains to be clarified. In this study, the localization of glucose transporter 9 (GLUT9) and urate transporter 1 (URAT1), which are known to be representative reabsorptive urate transporters, was immunohistochemically examined in autopsied human brains. Immunoreactivity of GLUT9 was observed on the apical side of the cytoplasm of epithelial cells in the choroid plexus and in the cilia of ependymal cells of the human brain...
September 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28869938/mineral-and-bone-disorder-in-chronic-kidney-disease-a-case-report-from-vietnam
#16
Pham Van Bui, Nguyyen Minh Tuan, Huynh Thi Nguyen Nghia, Pham Nguyen Thanh Phuong
We report a case of calcium pyrophosphate dihydrate deposition disease (CPDD) involving a patient on maintenance hemodialysis (MHD). The 32-year-old man presented in August 2016 with a complaint of left shoulder swelling of 8 months' duration with no trauma or fever. He was diagnosed with nephrotic syndrome in 1998, which progressed to ESRD. He commenced MHD in 2012. Examination at our hospital revealed a soft nontender swelling of the left shoulder. Blood biochemistry showed elevated serum urate, phosphate, β2 microglobulin, and parathyroid hormone...
2017: Blood Purification
https://www.readbyqxmd.com/read/28857199/urate-levels-predict-survival-in-als-analysis-of-the-expanded-pro-act-database
#17
Sabrina Paganoni, Katharine Nicholson, James Chan, Amy Shui, David Schoenfeld, Alexander Sherman, James Berry, Merit Cudkowicz, Nazem Atassi
INTRODUCTION: Urate has been identified as a predictor of ALS survival in some, but not all studies. Here we leverage the recent expansion of the PRO-ACT database to study the association between urate levels and ALS survival. METHODS: Pooled data of 1,736 ALS participants from the PRO-ACT database were analyzed. Cox proportional hazards regression models were used to evaluate associations between urate levels at trial entry and survival. RESULTS: After adjustment for potential confounders (i...
August 31, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28856502/mendelian-randomization-analysis-indicates-serum-urate-has-a-causal-effect-on-renal-function-in-chinese-women
#18
Jing Liu, Hui Zhang, Zheng Dong, Jingru Zhou, Yanyun Ma, Yuan Li, Qiaoxia Qian, Ziyu Yuan, Juan Zhang, Yajun Yang, Xiaofeng Wang, Xingdong Chen, Hejian Zou, Li Jin, Jiucun Wang
PURPOSE: High levels of serum uric acid can predict the progression of stage I and II chronic kidney disease (CKD), but whether serum urate is an independent risk factor or has causal impact on serum creatinine (SCr) and renal function remains unclear. METHODS: Mendelian randomization was used to determine whether serum uric acid had a causal effect on renal function, represented by estimated glomerular filtration rate (eGFR), with potential confounding factors, in 3734 subjects from the Taizhou Longitudinal Study...
August 30, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28855312/cyclodextrin-reduces-cholesterol-crystal-induced-inflammation-by-modulating-complement-activation
#19
Siril S Bakke, Marie H Aune, Nathalie Niyonzima, Katrine Pilely, Liv Ryan, Mona Skjelland, Peter Garred, Pål Aukrust, Bente Halvorsen, Eicke Latz, Jan K Damås, Tom E Mollnes, Terje Espevik
Cholesterol crystals (CC) are abundant in atherosclerotic plaques and promote inflammatory responses via the complement system and inflammasome activation. Cyclic oligosaccharide 2-hydroxypropyl-β-cyclodextrin (BCD) is a compound that solubilizes lipophilic substances. Recently we have shown that BCD has an anti-inflammatory effect on CC via suppression of the inflammasome and liver X receptor activation. The putative effects of BCD on CC-induced complement activation remain unknown. In this study, we found that BCD bound to CC and reduced deposition of Igs, pattern recognition molecules, and complement factors on CC in human plasma...
August 30, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28845946/-nephrolithiasis-coexisting-with-type-2-diabetes-current-concept-of-the-features-of-stone-formation-and-the-effects-of-hypoglycemic-therapy-on-lithogenesis
#20
S K Yarovoi, S A Golovanov, M R Khaziakhmetova, O V Dzhalilov
The article analyzes Russian and international literature examining specific features of the pathogenesis of renal stones in the setting of carbohydrate metabolism disorders. The authors outline the renal effects of the main pharmacological groups of oral hypoglycemic drugs regarding metaphylaxis of nephrolithiasis. An increased risk of nephrolithiasis in type 2 diabetes mellitus is realized through hyperuricemia with concurrent urine acidification. Current literature is lacking studies on the effects of oral hypoglycemic drugs on urine properties...
July 2017: Urologii︠a︡
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