Abstract：
OBJECTIVES:Osteoarthritis (OA) is the most prevalent chronic disease in the elderly, and it is generally diagnosed at an advanced state when treatment is difficult if not impossible. The early form of OA is characterized by an elevated water content in the cartilage tissue. The purpose of this study was to verify in vivo if changes in the water content of patellar cartilage typically occurring in early OA can be detected using T(2) mapping MRI methods. DESIGN:Twenty healthy volunteers performed 60 knee bends in order to compress their patellar cartilage thereby reducing its water content. MR images of the patellar cartilage were acquired immediately following exercise and after 45 min of rest. Patellar cartilage thickness and T(2) maps were determined and their difference between the time points evaluated. RESULTS:Cartilage thickness increased by 5.4+/-1.5% from 2.94+/-0.15 mm to 3.10+/-0.15 mm (P< 0.001) following 45 min of rest, while T(2) increased by 2.6+/-1.0% from 23.1+/-0.5 ms to 23.7+/-0.6 ms (P< 0.05). CONCLUSION:Small, physiologic changes in the water content of patellar cartilage and the concomitant change in proteoglycan and collagen density following exercise can be detected using MRI. The proposed T(2)-mapping method, together with other non-invasive MR cartilage imaging techniques, could aid in the early diagnosis of OA.
journal_name
Osteoarthritis Cartilagejournal_title
Osteoarthritis and cartilageauthors
Liess C,Lüsse S,Karger N,Heller M,Glüer CCdoi
10.1053/joca.2002.0847keywords:
subject
Has Abstractpub_date
2002-12-01 00:00:00pages
907-13issue
12eissn
1063-4584issn
1522-9653pii
S1063458402908472journal_volume
10pub_type
杂志文章abstract：OBJECTIVES:To examine the in situ distributions of vitamin D receptors (VDR) and matrix metalloproteinases (MMPs) in osteoarthritic cartilage for comparison with non-arthritic, normal cartilage; and to assess the in vitro effects of 1alpha,25 dihydroxyvitaminD(3)(1alpha,25(OH)(2)D(3)) on MMPs-1, -3 and -9 and prostagla...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2000.0408
更新日期：2001-07-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate systematically the effect of tissue load, its amplitude, time of intermittence and duration of loading on the biosynthesis and release of fibronectin by intermittently loaded mature bovine articular cartilage explants. METHODS:Cyclic compressive pressure was introduced u...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/s1063-4584(97)80037-4
更新日期：1997-09-01 00:00:00
abstract：:The efficacy and the safety of intra-articular injections of sodium hyaluronate were studied in patients with osteoarthritis of the knee in a randomized multicenter double-blind study. Two hundred and nine patients received five injections of either 25 mg hyaluronate/2.5 ml (verum, N = 102) or 0.25 mg hyaluronate/2.5 ...
journal_title：Osteoarthritis and cartilage
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s1063-4584(05)80329-2
更新日期：1993-10-01 00:00:00
abstract：PURPOSE:Our aim was to introduce a simplified MRI instrument, Rapid OsteoArthritis MRI Eligibility Score (ROAMES), for defining structural eligibility of patients for inclusion in disease-modifying osteoarthritis drug trials using a tri-compartmental anatomic approach that enables stratification of knees into different...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2019.08.005
更新日期：2020-01-01 00:00:00
abstract：OBJECTIVE:To develop flow cytometry for the study of human articular cartilage cell phenotype and to validate the method on chondrocytes cultured in different in-vitro systems. METHODS:Chondrocyte phenotype was modulated by culturing the cells under different in-vitro conditions: i.e. in monolayer and in suspension cu...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2000.0352
更新日期：2001-01-01 00:00:00
abstract：OBJECTIVE:The effect of mechanical injury on chondrocyte viability and matrix degradation was studied. It was proposed that mechanical injury to human cartilage explants results in chondrocyte apoptosis with associated loss of glycosaminoglycans. DESIGN:Full thickness human cartilage explants, 5 mm in diameter were su...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2001.0468
更新日期：2001-11-01 00:00:00
abstract：OBJECTIVE:A recent genome-wide association study reported significant associations of genetic variants within the ALDH1A2 gene with osteoarthritis (OA) of the hand in European populations. However, these findings have not been well generalized to other joints, or to other populations. METHODS:We performed a two-stage ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2017.01.003
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVE:Mesenchymal stem cells (MSCs) are a promising cell type for the repair of damaged cartilage in osteoarthritis (OA). However, OA synovial fluid and factors secreted by synovium impede chondrogenic differentiation of MSCs, and the mechanism responsible for this effect remains unclear. In this study, we sought t...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2014.05.021
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVE:To compare the population prevalence, inter-relationships, risk factor profiles and clinical characteristics of subsets of symptomatic hand osteoarthritis (OA) with a view to understanding their relative frequency and distinctiveness. METHOD:1076 community-dwelling adults with hand symptoms (60% women, mean ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2013.08.004
更新日期：2013-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the ability of full-field optical coherence tomography (FFOCT) to qualitatively and quantitatively evaluate cartilage degeneration using the qualitative evaluation of histology sections as the reference. DESIGN:Thirty-three human knee cartilage samples of variable...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2017.11.008
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVE:This study was designed to systematically determine whether and to what extent the frequency of intermittent loading modulates the biosynthesis and release of proteoglycans (PGs), and to assess chondrocyte viability within mature bovine articular cartilage explants exposed to different loading patterns. METH...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/s1063-4584(03)00007-4
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to investigate the effects of hypo-osmotically induced calcium (Ca(2+)) transients on the organization of the actin cytoskeleton in articular chondrocytes. The secondary hypothesis tested was that actin restructuring following hypo-osmotic stress is mediated by gelsolin. METHODS:Iso...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/s1063-4584(02)00347-3
更新日期：2003-03-01 00:00:00
abstract：OBJECTIVE:Slipped capital femoral epiphysis (SCFE) in adolescence is associated with increased risk of future osteoarthritis (OA). The purpose of this study was to study clinical and radiographic risk factors for early cartilage degeneration after SCFE. DESIGN:22 patients (44 hips) (mean age 24 years, range 18-27) tre...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2018.01.013
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVE:To elucidate variations in tissue ultrastructure and incidence of pathology between fibromodulin (FM)-null mice and wild-type (WT) animals. DESIGN:FM-null and WT siblings from different age groups were compared. Serial sections were made through paraffin-embedded whole knees and investigated histologically. ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2002.0527
更新日期：2002-10-01 00:00:00
abstract：OBJECTIVE:Synovitis associated with osteoarthritis (OA) is directly responsible for several clinical symptoms and reflects OA's structural progression. This study sought to analyze the expression of proinflammatory mediations, including Interleukin (IL)-17 and IL-22, which play key roles in regulating inflammatory proc...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2014.12.007
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:To explore the relationships between C-reactive protein (CRP), metabolic syndrome (MetS) and incidence of severe knee or hip osteoarthritis (OA) in a prospective study. METHODS:A population-based cohort (n=5171, mean age 57.5+/-5.9 years) was examined between 1991 and 1994. Data was collected on lifestyle ha...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2008.07.003
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVE:An age-related decline in chondrocyte production of osteogenic protein-1 (OP-1) (Bone Morphogenetic Protein-7) may contribute to cartilage loss in osteoarthritis. This study was designed to determine if increased methylation of the OP-1 promoter might serve as a mechanism for the age-related decline in OP-1 e...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2008.08.003
更新日期：2009-04-01 00:00:00
abstract：OBJECTIVE:To determine how well measures of hip geometry can predict radiological incident hip osteoarthritis (HOA) compared to well known clinical risk factors. DESIGN:The study population is part of the Rotterdam Study, a prospective population-based cohort. Baseline pelvic radiographs were used to measure hip geome...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2013.06.012
更新日期：2013-10-01 00:00:00
abstract：INTRODUCTION:Matrix metalloproteinases (MMPs) and 'aggrecanase' a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTSs) are well established to play key roles in osteoarthritis (OA) through degradation of extracellular matrix (ECM) type II collagen and aggrecan, and are thus potential targets for devel...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章,评审
doi：10.1016/j.joca.2017.02.791
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVE:Patterns of radiographic osteoarthritis (ROA) of the hand are often examined by row, with the four joints of the thumb studied inconsistently. The objectives of this study were to determine relationships of ROA at different hand joints, use the findings to define radiographic sub-groups and investigate their ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2009.05.009
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVE:One of the main open questions in chondrocyte transplantation is the fate of the implanted cells in vivo. We intended to establish prerequisites for such studies in animal models and to show the feasibility of this approach in rabbits. Isolated articular chondrocytes were retrovirally marked using green fluor...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2001.0486
更新日期：2002-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the effects of intra-articular injections of high molecular weight (2000 kDa) sodium hyaluronate (HA) on the progression of articular cartilage degeneration in a rabbit partial medial meniscectomy model of osteoarthritis. DESIGN:Six experimental groups included norm...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2003.11.007
更新日期：2004-03-01 00:00:00
abstract：OBJECTIVE:Adult articular cartilage is a physiologically hypoxic tissue with a proposed gradient of oxygen tension ranging from <10% oxygen at the cartilage surface to <1% in the deepest layers. This gradient may be disturbed during diseases of the joint, for example in rheumatoid arthritis when synovial fluid pO(2)fal...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1053/joca.2000.0396
更新日期：2001-05-01 00:00:00
abstract：PURPOSE:The number of effective knee osteoarthritis (OA) interventions, especially those tailored to specific compartmental involvement, are small. The objective of this study was to determine the efficacy of a realigning patellofemoral (PF) brace in improving pain and function among persons with symptomatic lateral PF...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joca.2010.12.010
更新日期：2011-07-01 00:00:00
abstract：OBJECTIVE:The major complaint of Osteoarthritis (OA) patients is pain. However, due to the nature of clinical studies and the limitation of animal studies, few studies have linked function impairment and behavioral changes in OA animal models to cartilage loss and histopathology. Our objective was to study surrogate ma...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2013.06.016
更新日期：2013-09-01 00:00:00
abstract：PURPOSE:Biomarkers provide useful diagnostic information by detecting cartilage degradation in osteoarthritis (OA), reflecting disease-relevant biological activity and predicting the course of disease progression. They also serve as surrogate endpoints in the drug discovery process. The aim of this narrative review was...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章,评审
doi：10.1016/j.joca.2012.07.009
更新日期：2012-12-01 00:00:00
abstract：OBJECTIVE:Fourier transform infrared (FT-IR) spectroscopic imaging is a promising method that enables the analysis of spatial distribution of biochemical components within histological sections. However, analysis of FT-IR spectroscopic data is complicated since absorption peaks often overlap with each other. Second der...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2012.01.010
更新日期：2012-05-01 00:00:00
abstract：OBJECTIVE:To evaluate the levels of plasmatic and synovial Coll2-1, Coll2-1NO(2) and myeloperoxidase (MPO) in horses with osteochondral lesions of the tarsocrural joint and to investigate how these levels relate to arthroscopic findings of inflammation and degeneration. MATERIALS AND METHODS:Venous blood and synovial ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章
doi：10.1016/j.joca.2011.08.002
更新日期：2011-11-01 00:00:00
abstract：OBJECTIVE AND METHODS:To evaluate the immune-modulator effect of chondroitin sulfate (CS) by means of the review of the literature. RESULTS:Inflammatory reactions are primarily originated by infectious agents, immune reactions and by sterile tissue lesions that activate membrane receptors by means of pathogen-associat...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章,评审
doi：10.1016/j.joca.2010.02.017
更新日期：2010-06-01 00:00:00
abstract：OBJECTIVE:To date semiquantitative whole-organ scoring of knee osteoarthritis (OA) relies on 1.5 Tesla (T) Magnetic resonance imaging (MRI) systems. Less costly 1.0 T extremity systems have been introduced that offer superior patient comfort, but may have limitations concerning field-of-view and image quality. The aim ...
journal_title：Osteoarthritis and cartilage
pub_type： 杂志文章,多中心研究
doi：10.1016/j.joca.2009.08.017
更新日期：2010-02-01 00:00:00
