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https://www.readbyqxmd.com/read/28740214/compensatory-anabolic-signaling-in-the-sarcopenia-of-experimental-chronic-arthritis
#1
Robert D Little, Iván Prieto-Potin, Sandra Pérez-Baos, Amanda Villalvilla, Paula Gratal, Flavia Cicuttini, Raquel Largo, Gabriel Herrero-Beaumont
Inflammatory activity in rheumatoid arthritis may alter the regulation of muscle mass leading to a secondary sarcopenia, commonly termed rheumatoid cachexia (RC). We characterized alterations to muscle structure and various pro-inflammatory, catabolic and regenerative markers in an animal model of RC. Antigen induced arthritis (AiA) was performed in 20 male adult rabbits. AiA animals exhibited significantly less weight gain, a markedly elevated serum C-reactive protein (CRP), lighter muscles with shorter cross-sectional diameter and increased myonuclei when compared to controls...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717843/septic-arthritis-associated-with-systemic-sepsis
#2
Sung-Weon Jung, Dong-Hee Kim, Sung-Jin Shin, Byoung-Youl Kang, Yil-Ju Eho, Seong-Wook Yang
PURPOSE: Septic arthritis presents with good joint function, but sometimes leads to poor outcomes. Concurrent systemic sepsis has been regarded as the poor outcome, and the exact cause remains unclear. This paper was performed to identify factors associated with concurrent systemic sepsis and to research results to predict poor outcomes in patients with septic arthritis. METHODS: Laboratory and medical data were reviewed for 137 adults with acute septic arthritis who underwent open or arthroscopic surgical debridement at our institution between January 2005 and December 2014...
July 17, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28712799/diagnosing-periprosthetic-joint-infection-and-the-winner-is
#3
Alisina Shahi, Timothy L Tan, Michael M Kheir, Dean D Tan, Javad Parvizi
BACKGROUND: Diagnosis of periprosthetic joint infection (PJI) remains a challenge despite a wide variety of available diagnostic tests. The question that arises is which of these tests has a better performance for diagnosing PJI. Diagnostic odds ratio (DOR) has been described as the best indicator for test performance. METHODS: To compare the performance of the standard diagnostic tests, the DOR of serum erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP), synovial fluid (SF) white blood cell (WBC) count, SF polymorphonuclear (PMN%), and leukocyte esterase (LE) were calculated...
June 10, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28695434/the-single-nucleotide-polymorphism-snp-of-tumor-necrosis-factor-%C3%AE-308g-a-gene-is-associated-with-early-onset-primary-knee-osteoarthritis-in-an-egyptian-female-population
#4
Sahar M Abdel Galil, Nillie Ezzeldin, Faten Fawzy, Mohamed El-Boshy
The objective of the present study is to investigate if there is a potential association between the single-nucleotide polymorphisms (SNPs) of the tumor necrosis factor alpha gene (TNF-α -308G/A, rs1800629) and the susceptibility to and severity of early-onset knee osteoarthritis in the Egyptian female population. Genotype distributions and allelic frequencies of TNF-α -308G/A polymorphism were investigated in 210 knee osteoarthritis (OA) patients and 210 age-, sex-, and ethnicity-matched healthy controls (HC)...
July 10, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28690466/propionibacterium-acnes-host-inflammatory-response-during-periprosthetic-infection-is-joint-specific
#5
Scott R Nodzo, K Keely Boyle, Samrath Bhimani, Thomas R Duquin, Andy O Miller, Geoffrey H Westrich
BACKGROUND: Propionibacterium acnes (P. acnes) has become increasingly recognized as a cause of periprosthetic joint infection (PJI). QUESTIONS/PURPOSES: It is not currently known if the clinical presentation of P. acnes varies depending on the joint being infected. METHODS: We retrospectively reviewed patients infected with P. acnes after total hip, knee, and shoulder arthroplasty from two institutions. Patients were classified as having a PJI based on the Musculoskeletal Infection Society criteria and were excluded if they had a polymicrobial culture...
July 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28681656/detection-of-synovial-inflammation-in-rheumatic-diseases-using-superb-microvascular-imaging-comparison-with-conventional-power-doppler-imaging
#6
Kazuhiro Yokota, Takuma Tsuzuki Wada, Yuji Akiyama, Toshihide Mimura
AIM: Superb microvascular imaging (SMI), a novel ultrasonography, is based on the sensitivity of Doppler technology. This study evaluated power Doppler (PD) ultrasound signals in patients with rheumatic disease using SMI and conventional PD imaging (cPDI) and compared the correlations of these signals to clinical assessments. METHODS: Thirty-nine patients with rheumatic disease (27 rheumatoid arthritis [RA] and 12 non-RA) were enrolled. We investigated SMI and cPDI signals in 26 joints using an Aplio 300...
July 6, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28666043/difficult-to-detect-low-grade-infections-responsible-for-poor-outcomes-in-total-knee-arthroplasty
#7
Luis Grau, Meredith Alane Gunder, Michaela Schneiderbauer
In this article, we present the case of a patient with a stiff, painful knee after total knee arthroplasty, and with erythrocyte sedimentation rate, C-reactive protein level, and synovial fluid analysis within normal limits. Open biopsy for cultures showed Propionibacterium acnes prosthetic joint infection, which was successfully treated with 2-stage revision and intravenous antibiotics.
May 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28659662/il-34-upregulated-th17-production-through-increased-il-6-expression-by-rheumatoid-fibroblast-like-synoviocytes
#8
Bing Wang, Zijian Ma, Miaomiao Wang, Xiaotong Sun, Yawei Tang, Ming Li, Yan Zhang, Fang Li, Xia Li
Rheumatoid arthritis (RA) is a chronic autoimmune disease which is characterized by synovial inflammation and cartilage damage for which causes articular dysfunction. Activation of fibroblast-like synoviocytes (FLS) is a critical step that promotes disease progression. In this study, we aimed to explore the effect of interleukin-34 (IL-34) on RA FLS as a proinflammatory factor and IL-34-stimulated FLS on the production of Th17. We found that serum IL-34 levels were increased compared to those of the healthy controls and had positive correlations with C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), rheumatoid factor (RF), and anticyclic citrullinated peptide (CCP) antibody accordingly...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28647488/autoreactivity-to-malondialdehyde-modifications-in-rheumatoid-arthritis-is-linked-to-disease-activity-and-synovial-pathogenesis
#9
Caroline Grönwall, Khaled Amara, Uta Hardt, Akilan Krishnamurthy, Johanna Steen, Marianne Engström, Meng Sun, A Jimmy Ytterberg, Roman A Zubarev, Dagmar Scheel-Toellner, Jeffrey D Greenberg, Lars Klareskog, Anca I Catrina, Vivianne Malmström, Gregg J Silverman
Oxidation-associated malondialdehyde (MDA) modification of proteins can generate immunogenic neo-epitopes that are recognized by autoantibodies. In health, IgM antibodies to MDA-adducts are part of the natural antibody pool, while elevated levels of IgG anti-MDA antibodies are associated with inflammatory and autoimmune conditions. Yet, in human autoimmune disease IgG anti-MDA responses have not been well characterized and their potential contribution to disease pathogenesis is not known. Here, we investigate MDA-modifications and anti-MDA-modified protein autoreactivity in rheumatoid arthritis (RA)...
June 21, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28623906/correlations-between-inflammatory-cytokines-muscle-damage-markers-and-acute-postoperative-pain-following-primary-total-knee-arthroplasty
#10
Hai-Bo Si, Ti-Min Yang, Yi Zeng, Zong-Ke Zhou, Fu-Xing Pei, Yan-Rong Lu, Jing-Qiu Cheng, Bin Shen
BACKGROUND: Despite the success of total knee arthroplasty (TKA) in reducing knee pain and improving functional disability, the management of acute postoperative pain is still unsatisfactory. This study was aimed to quantitatively analyze the possible correlations between inflammatory cytokines, muscle damage markers and acute postoperative pain following primary TKA. METHODS: Patients scheduled for unilateral primary TKA were consecutively included, the serial changes of the numerical rating scale (NRS) at rest (NRSR) and at walking (NRSW), serum inflammatory cytokines and muscle damage markers were assessed before surgery (T0) and at postoperative day 1, 2, 3 and 5 (T1-T4, respectively); while pain disability questionnaire (PDQ) and synovial fluid inflammatory cytokines were evaluated at T0...
June 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28621703/pain-sensation-in-human-osteoarthritic-knee-joints-is-strongly-enhanced-by-diabetes-mellitus
#11
Annett Eitner, Julia Pester, Franziska Vogel, Ivan Marintschev, Thomas Lehmann, Gunther O Hofmann, Hans-Georg Schaible
The major burden of knee joint osteoarthritis (OA) is pain. Since in elder patients diabetes mellitus is an important comorbidity of OA we explored whether the presence of diabetes mellitus has a significant influence on pain intensity at the end stage of knee OA, and we aimed to identify factors possibly related to changes of pain intensity in diabetic patients. In 23 diabetic and 47 non-diabetic OA patients undergoing total knee arthroplasty, we assessed the pain intensity before the operation using the "Knee injury and Osteoarthritis Outcome score" (KOOS)...
June 8, 2017: Pain
https://www.readbyqxmd.com/read/28616915/-association-of-elevated-platelet-microparticles-with-disease-activity-in-rheumatoid-arthritis
#12
Li-Jia Xue, Bei-Bei Cui, Xi Li, Qiao-Rong Huang, Yi Liu, Hui Lin
OBJECTIVES: To explore the expression of platelets microparticles (PMPs) in peripheral blood (PB) and synovial fluid (SF) of rheumatoid arthritis (RA) patients and its correlation with clinical inflammatory parameters. METHODS: The levels of PMPs in PB were detected by flow cytometry in 26 active RA patients and 15 healthy control (HC). SF was collected from 16 patients. The percentages of CD62P(+)PMPs, CD154(+)PMPs and clinical parameters (including CRP, ESR, RF and ACPA) were also measured, then the correlations of PMPs with these parameters were analyzed...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28586166/novel-serum-biomarkers-differentiate-psoriatic-arthritis-from-psoriasis-without-psoriatic-arthritis
#13
Daniela Cretu, Lisa Gao, Kun Liang, Antoninus Soosaipillai, Eleftherios P Diamandis, Vinod Chandran
OBJECTIVES: There is a high prevalence of undiagnosed psoriatic arthritis (PsA) in psoriasis patients. Identifying soluble biomarkers for PsA will help in screening psoriasis patients for appropriate rheumatology referral. We therefore aimed to investigate whether serum levels of novel markers previously discovered by quantitative mass spectrometric (MS) analysis of synovial fluid and skin biopsies, performs better than CRP in differentiating PsA patients from those with psoriasis without PsA (PsC)...
June 6, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28575001/radiographic-and-magnetic-resonance-imaging-predicts-severity-of-cruciate-ligament-fiber-damage-and-synovitis-in-dogs-with-cranial-cruciate-ligament-rupture
#14
Susannah J Sample, Molly A Racette, Eric C Hans, Nicola J Volstad, Gerianne Holzman, Jason A Bleedorn, Susan L Schaefer, Kenneth R Waller, Zhengling Hao, Walter F Block, Peter Muir
Cruciate ligament rupture (CR) and associated osteoarthritis (OA) is a common condition in dogs. Dogs frequently develop a second contralateral CR. This study tested the hypothesis that the degree of stifle synovitis and cranial cruciate ligament (CrCL) matrix damage in dogs with CR is correlated with non-invasive diagnostic tests, including magnetic resonance (MR) imaging. We conducted a prospective cohort study of 29 client-owned dogs with an unstable stifle due to complete CR and stable contralateral stifle with partial CR...
2017: PloS One
https://www.readbyqxmd.com/read/28549361/-leukocyte-esterase-as-a-diagnostic-tool-for-an-infectious-disease-of-the-knee
#15
S U Ceja-Picazo, S Fuentes-Figueroa, A H Rivera-Villa, A R Hernández-Salgado, R Torres-González, A M Pérez, J A Hernández-García, J M Pérez-Atanasio
BACKGROUND: Articular infection is an orthopedic challenge due to its difficult diagnosis and devastating results. Various diagnostic studies exist: culture, ESR, CRP, count of leukocytes, among others, but none is specific, they all take more than 30 minutes to complete, and require complex infrastructure. In this study, we determine the sensitivity and specificity of the leukocyte esterase for detection of an infectious process joint in Mexican population. MATERIAL AND METHODS: During November 2015 to April 2016, we obtained synovial fluid from two groups of patients: one with a diagnosis of synovial joint infection with or without implant, and the control group, without infection but with degenerative pathology of the knee...
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28545554/whipple-s-disease-mimicking-rheumatoid-arthritis-can-cause-misdiagnosis-and-treatment-failure
#16
Cornelia Glaser, Siegbert Rieg, Thorsten Wiech, Christine Scholz, Dominique Endres, Oliver Stich, Peter Hasselblatt, Walter Geißdörfer, Christian Bogdan, Annerose Serr, Georg Häcker, Reinhard E Voll, Jens Thiel, Nils Venhoff
BACKGROUND: Whipple's disease, a rare chronic infectious disorder caused by Tropheryma whipplei, may present with predominant joint manifestations mimicking rheumatoid arthritis (RA). METHODS: A retrospective single-center cohort study of seven patients was performed. Clinical symptoms were assessed by review of medical charts and Whipple's disease was diagnosed by periodic-acid-Schiff-stain and/or Tropheryma whipplei-specific polymerase-chain-reaction. RESULTS: Median age at disease onset was 54 years, six patients were male...
May 25, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28502355/how-to-diagnose-and-treat-infection-in-total-ankle-arthroplasty
#17
REVIEW
Yousef Alrashidi, Ahmed E Galhoum, Martin Wiewiorski, Mario Herrera-Pérez, Raymond Y Hsu, Alexej Barg, Victor Valderrabano
Periprosthetic infection after total ankle arthroplasty (TAA) is a serious complication, often requiring revision surgery, including revision arthroplasty, conversion to ankle arthrodesis, or even amputation. Risk factors for periprosthetic ankle infection include prior surgery at the site of infection, low functional preoperative score, diabetes, and wound healing problems. The clinical presentation of patients with periprosthetic ankle joint infection can be variable and dependent on infection manifestation: acute versus chronic...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28461959/the-role-of-biomarkers-in-the-diagnosis-of-periprosthetic-joint-infection
#18
AliSina Shahi, Javad Parvizi
The role of serum erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) as the first line for evaluating a patient with periprosthetic joint infection (PJI) has been debunked.We are living in the era of biomarkers for the diagnosis of PJI, and to that effect, several biomarkers have been introduced such as synovial fluid alpha defensin and leukocyte esterase.The synovial fluid leukocyte esterase test has a low cost, is accessible, and has provided promising results for diagnosing PJI.There is an urgent need for an accurate and reliable serum biomarker for diagnosing patients with PJI...
July 2016: EFORT Open Rev
https://www.readbyqxmd.com/read/28446208/calgizzarin-s100a11-a-novel-inflammatory-mediator-associated-with-disease-activity-of-rheumatoid-arthritis
#19
Lucie Andrés Cerezo, Barbora Šumová, Klára Prajzlerová, David Veigl, Dres Damgaard, Claus Henrik Nielsen, Karel Pavelka, Jiří Vencovský, Ladislav Šenolt
BACKGROUND: Calgizzarin (S100A11) is a member of the S100 protein family that acts in different tumors by regulating a number of biologic functions. Recent data suggest its association with low-grade inflammation in osteoarthritis (OA). The aim of our study is to compare S100A11 expression in the synovial tissues, synovial fluid and serum of patients with rheumatoid arthritis (RA) and osteoarthritis (OA) and to characterize the potential association between S100A11 and disease activity...
April 26, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28425837/calprotectin-levels-in-rheumatoid-arthritis-and-their-correlation-with-disease-activity-a-meta-analysis
#20
Sang-Cheol Bae, Young Ho Lee
OBJECTIVE: We evaluated the relationship between calprotectin levels and rheumatoid arthritis (RA), and the correlation between plasma/serum calprotectin and RA activity. METHODS: We searched PUBMED, EMBASE, and Cochrane databases and performed meta-analyses comparing plasma/serum or synovial fluid calprotectin levels in RA patients and controls, and correlation coefficients between calprotectin levels and disease activity for 28 joints (DAS28) as well as C-reactive protein (CRP) in RA patients...
June 2017: Postgraduate Medicine
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