scholarly journals 009 THE ASSOCIATION OF PREVALENT CARTILAGE DAMAGE AND CARTILAGE LOSS OVER TIME WITH INCIDENT BONE MARROWEDEMA-LIKE LESIONS AT THE TIBIOFEMORAL COMPARTMENTS: THE MOST STUDY

2010 ◽  
Vol 18 ◽  
pp. S12-S13 ◽  
Author(s):  
M.D. Crema ◽  
F.W. Roemer ◽  
K. Wang ◽  
D.T. Felson ◽  
M.D. Marra ◽  
...  
Keyword(s):  
Cartilage Damage ◽  
Cartilage Loss ◽  
And Cartilage ◽  
Over Time

COX-2, NO, and cartilage damage and repair

2000 ◽  
Vol 2 (6) ◽  
pp. 447-453 ◽  
Author(s):  
Ashok R. Amin ◽  
Mandar Dave ◽  
Mukundan Attur ◽  
Steven B. Abramson
Keyword(s):  
Cartilage Damage ◽  
Cox 2 ◽  
And Cartilage

scholarly journals Presence of MRI-detected joint effusion and synovitis increases the risk of cartilage loss in knees without osteoarthritis at 30-month follow-up: the MOST study

2011 ◽  
Vol 70 (10) ◽  
pp. 1804-1809 ◽  
Author(s):  
Frank W Roemer ◽  
Ali Guermazi ◽  
David T Felson ◽  
Jingbo Niu ◽  
Michael C Nevitt ◽  
...  
Keyword(s):  
Cartilage Damage ◽  
Multivariable Analysis ◽  
Cartilage Loss ◽  
Joint Effusion ◽  
Proton Density ◽  
Osteoarthritis Of The Knee ◽  
Radiographic Osteoarthritis ◽  
Baseline Visit ◽  
Increased Risk

ObjectiveTo evaluate if two different measures of synovial activation, baseline Hoffa synovitis and effusion synovitis, assessed by MRI, predict cartilage loss in the tibiofemoral joint at 30 months follow-up in subjects with neither cartilage damage nor tibiofemoral radiographic osteoarthritis of the knee.MethodsNon-contrast-enhanced MRI was performed using proton density-weighted fat-suppressed sequences in the axial and sagittal planes and a short tau inversion recovery sequence in the coronal plane. Hoffa synovitis, effusion synovitis and cartilage status were assessed semiquantitatively according to the WORMS scoring system. Included were knees that had neither radiographic osteoarthritis nor MRI-detected tibiofemoral cartilage damage at the baseline visit. The presence of Hoffa synovitis was defined as any grade ≥2 (range 0–3) and effusion synovitis as any grade ≥2 (range 0–3). Logistic regression was performed to examine the relation of the presence of either measure to the risk of cartilage loss at 30 months adjusting for other potential confounders.ResultsOf 514 knees included in the analysis, the prevalence of Hoffa synovitis and effusion synovitis at the baseline visit was 8.4% and 10.3%, respectively. In the multivariable analysis, baseline effusion synovitis was associated with an increased risk of cartilage loss. No such association was observed for baseline Hoffa synovitis.ConclusionsBaseline effusion synovitis, but not Hoffa synovitis, predicted cartilage loss. The findings suggest that effusion synovitis, a reflection of inflammatory activity including joint effusion and synovitic thickening, may play a role in the future development of cartilage lesions in knees without osteoarthritis.

Association of Mucoid Degeneration of the ACL with Medial Tibiofemoral Osteoarthritis Progression at MR Imaging

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Samer Mohamed Moustafa ◽  
Amany Moh. Rashad Abdel-Aziz ◽  
Mennatallah Hatem Shalaby
Keyword(s):  
Cartilage Damage ◽  
Strong Association ◽  
Pulse Sequences ◽  
Joint Damage ◽  
Radiology Department ◽  
Proton Density ◽  
Mucoid Degeneration ◽  
University Hospitals ◽  
Osteoarthritis Progression ◽  
And Cartilage

Abstract Background Using MRI, ACL mucoid degeneration is defined as a thickened ACL with increased signal intensity on all MR pulse sequences, with discrete fibers easily distinguished on fatsaturated T2-weighted or fat-saturated proton-density (PD)-weighted images but poorly differentiated on T1-weighted or non-fat-saturated PD-weighted images. Objective To assess the prevalence of ACL mucoid degeneration in a population of patients referred for routine knee MRI, and its association with age and structural joint damage. Patients and Methods Our study is a retrospective study conducted at the radiology department of Ain Shams University hospitals and Ain Shams University Specialized Hospital including 81 cases of knees with ACL mucoid degeneration by MRI and no sex predilection. Cases and controls were scored with respect to independent articular features: cartilage signal and morphology, subarticular bone marrow abnormality, subarticular cysts, subarticular bone attrition, marginal osteophytes and medial meniscal integrity. Results Patients with ACL mucoid degeneration were older than patients with a normal ACL, without statistically significant sex difference. Knees with ACL mucoid degeneration had statistically significant medial meniscal injuries and cartilage damage involving the central and posterior MTFC compared to control knees with a normal ACL frequency matched for age, sex and MR field strength. Conclusion Our study proved that there is a strong association between ACL mucoid degeneration and cartilage damage in MTFC.

scholarly journals Effect of Moxibustion on the Intestinal Flora of Rats with Knee Osteoarthritis Induced by Monosodium Iodoacetate

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Yu Chen ◽  
Jiuheng Lv ◽  
Yejuan Jia ◽  
Ruiqing Wang ◽  
Zidi Zhang ◽  
...  
Keyword(s):  
Treatment Group ◽  
Knee Osteoarthritis ◽  
High Throughput Sequencing ◽  
Cartilage Damage ◽  
Intestinal Flora ◽  
Inflammatory Factors ◽  
Knee Cartilage ◽  
Model Group ◽  
Monosodium Iodoacetate ◽  
And Cartilage

In this study, a knee osteoarthritis (KOA) rat model induced by monosodium iodoacetate (MIA) was used to study the effect of moxibustion on improving knee cartilage damage and its effect on the intestinal flora. The experimental rats were divided into the normal group (N), model group (M), moxibustion treatment group (MS), and diclofenac sodium treatment group (DS). After 4 weeks, cartilage pathological damage in the knee joint was evaluated using hematoxylin-eosin and safranin O-fast green staining analysis. ELISAs and Western blots were used to detect the expression levels of IL-1β and TNF-α in the serum and cartilage, respectively. The total DNA of the fecal samples was extracted and subjected to high-throughput sequencing of the V3-V4 region of the 16S rRNA gene to analyze the changes in the intestinal flora. In the model group, the cartilage was obviously damaged, the expression levels of IL-1β and TNF-α in the serum and cartilage were increased, and the abundance and diversity of the intestinal flora were decreased. Moxibustion treatment significantly improved the cartilage damage and reduced the concentration of inflammatory factors in the serum and cartilage. The high-throughput sequencing results showed that compared to the model group, the moxibustion treatment regulated some specific species in the intestinal microorganisms rather than the α diversity. In conclusion, our findings suggest that moxibustion treatment may work through two aspects in rats. On one hand, it directly acts on knee cartilage to promote repair, and on the other hand, it regulates the composition of the intestinal flora and reduces the production of inflammatory factors.

scholarly journals Hexokinase 2 as a novel selective metabolic target for rheumatoid arthritis

2018 ◽  
Vol 77 (11) ◽  
pp. 1636-1643 ◽  
Author(s):  
Marta F Bustamante ◽  
Patricia G Oliveira ◽  
Ricard Garcia-Carbonell ◽  
Adam P Croft ◽  
Jeff M Smith ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Glucose Metabolism ◽  
Cartilage Damage ◽  
Critical Role ◽  
Lactate Production ◽  
Migration And Invasion ◽  
Synovial Lining ◽  
Serum Transfer ◽  
And Cartilage

ObjectivesRecent studies indicate that glucose metabolism is altered in rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS). Hexokinases (HKs) catalyse the first step in glucose metabolism, and HK2 constitutes the principal HK inducible isoform. We hypothesise that HK2 contributes to the synovial lining hypertrophy and plays a critical role in bone and cartilage damage.MethodsHK1 and HK2 expression were determined in RA and osteoarthritis (OA) synovial tissue by immunohistochemistry. RA FLS were transfected with either HK1 or HK2 siRNA, or infected with either adenovirus (ad)-GFP, ad-HK1 or ad-HK2. FLS migration and invasion were assessed. To study the role of HK2 in vivo, 108 particles of ad-HK2 or ad-GFP were injected into the knee of wild-type mice. K/BxN serum transfer arthritis was induced in HK2F/F mice harbouring Col1a1-Cre (HK2Col1), to delete HK2 in non-haematopoietic cells.ResultsHK2 is particular of RA histopathology (9/9 RA; 1/8 OA) and colocalises with FLS markers. Silencing HK2 in RA FLS resulted in a less invasive and migratory phenotype. Consistently, overexpression of HK2 resulted in an increased ability to migrate and invade. It also increased extracellular lactate production. Intra-articular injection of ad-HK2 in normal knees dramatically increased synovial lining thickness, FLS activation and proliferation. HK2 was highly expressed in the synovial lining after K/BxN serum transfer arthritis. HK2Col1 mice significantly showed decreased arthritis severity, bone and cartilage damage.ConclusionHK2 is specifically expressed in RA synovial lining and regulates FLS aggressive functions. HK2 might be an attractive selective metabolic target safer than global glycolysis for RA treatment.

The Detection of Arthrokinetic Biomarkers for Osteoarthritis in Partial Medial Meniscectomy Patients

2012 ◽  
Author(s):  
Chelsea Marsh ◽  
Jing Tang ◽  
Scott Tashman
Keyword(s):  
High Risk ◽  
Knee Osteoarthritis ◽  
Structural Damage ◽  
Cartilage Damage ◽  
Surface Damage ◽  
Cartilage Loss ◽  
Meniscal Injury ◽  
Meniscal Tears ◽  
Medial Meniscectomy ◽  
Injured Knee

Meniscal injury has been found to leave patients at high risk for the development of knee osteoarthritis (OA). Partial meniscectomy is often used to treat meniscal tears, and while this procedure adequately addresses pain and the restoration of function, it does not prevent the progression of OA in the injured knee. Often during arthroscopy, surgeons identify areas of “softened” cartilage, which do not always correlate with visible signs of surface damage or cartilage loss. This softening has been related to changes in the cartilage matrix, which could represent early structural damage that can lead to irreversible cartilage damage and OA.

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