Abstract:
OBJECTIVE:To evaluate the effects of avocado soybean unsaponifiables (ASU) on proinflammatory mediators in chondrocytes and monocyte/macrophage-like cells. DESIGN:To determine the dose response of ASU, chondrocytes (5 x 10(5) cells/well) were incubated at 5% CO(2), 37 degrees C for 72 h with (1) control media alone or (2) ASU at concentrations of 0.3, 0.9, 2.7, 8.3, and 25 microg/ml. Cells were activated with 20 ng/ml lipopolysaccharide (LPS) for 24 h and cell supernatants were analyzed for prostaglandin E(2) (PGE(2)) and nitrite content. Chondrocytes and THP-1 monocyte/macrophages (5 x 10(5) cells/well) were incubated at 5% CO(2), 37 degrees C for 72 h with (1) control media alone or (2) ASU (25 mug/ml). One set of cells was activated for 1 h with LPS (20 ng/ml) for both reverse-transcriptase PCR and real-time PCR analysis of tumor necrosis factor-alpha (TNF-alpha), interleukin-1-beta (IL-1beta), cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) expression. One set of cells was activated for 24 h to analyze secreted PGE(2) and nitrite levels in the cellular supernatant. RESULTS:ASU reduced TNF-alpha, IL-1beta, COX-2, and iNOS expression in LPS-activated chondrocytes to levels similar to nonactivated control levels. The suppression of COX-2 and iNOS expression was paralleled by a significant reduction in PGE(2) and nitrite, respectively, in the cellular supernatant. ASU also reduced TNF-alpha and IL-1beta expression in LPS-activated monocyte/macrophage-like cells. CONCLUSION:The present study demonstrates that the anti-inflammatory activity of ASU is not restricted to chondrocytes, but also affects monocyte/macrophage-like cells that serve as a prototype for macrophages in the synovial membrane. These observations provide a scientific rationale for the pain-reducing and anti-inflammatory effects of ASU observed in osteoarthritis patients.
journal_name
Osteoarthritis Cartilagejournal_title
Osteoarthritis and cartilageauthors
Au RY,Al-Talib TK,Au AY,Phan PV,Frondoza CGdoi
10.1016/j.joca.2007.07.009subject
Has Abstractpub_date
2007-11-01 00:00:00pages
1249-55issue
11eissn
1063-4584issn
1522-9653pii
S1063-4584(07)00257-9journal_volume
15pub_type
杂志文章abstract:OBJECTIVE:To evaluate ankle joint abnormalities in a knee osteoarthritis (OA) cohort. METHODS:Participants (n = 159) with symptomatic and radiographic OA in at least one knee underwent technetium-99m methylene diphosphonate bone scan (scored 0-3) of the ankles and forefeet. Knee radiographs were graded for OA features...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2013.07.008
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:To date, no approved clinical intervention successfully prevents the progressive degradation of injured articular cartilage that leads to osteoarthritis (OA). Stem/progenitor cell populations within tissues of diarthrodial joint have shown their therapeutic potential in treating OA. However, this potential ha...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2014.07.002
更新日期:2014-09-01 00:00:00
abstract:OBJECTIVE:As cartilage loss and bone marrow lesions (BMLs) are associated with knee joint pain and structural worsening, this study assessed whether non-invasive estimates of articular contact stress may longitudinally predict risk for worsening of knee cartilage morphology and BMLs. DESIGN:This was a longitudinal coh...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2012.05.013
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To devise a reliable, sensitive method to measure joint space in vivo during dynamic loading. Additionally, to determine if dynamic joint space changes were related to the severity of long-term cartilage damage. DESIGN:Subjects were 23 adult foxhounds (18 experimental, 5 control). Experimental subjects had s...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.04.019
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:To investigate the potential synergistic and differential effects of cytokine combinations on proteoglycan aggregate catabolism in cartilage. METHODS:Bovine articular cartilage explants were maintained in organ culture and subjected to stimulation with cytokine combinations including interleukin-1alpha (IL-1...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2007.05.002
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:Obesity is a highly cited risk factor for knee osteoarthritis (OA), but its role in knee OA pathogenesis and progression is not as clear. Excess weight may contribute to an increased mechanical burden and altered dynamic movement and loading patterns at the knee. The objective of this study was to examine the...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2012.08.004
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:Epidemiological studies have shown an association between increased bone mineral density (BMD) and osteoarthritis (OA), but whether this represents cause or effect remains unclear. In this study, we used a novel approach to investigate this question, determining whether individuals with High Bone Mass (HBM) h...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2014.06.007
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVE:SIRT6, a member of the sirtuin family of nicotinamide adenine dinucleotide (NAD(+))-dependent protein deacetylases, has been implicated as a key factor in aging-related diseases. However, the role of SIRT6 in chondrocytes has not been fully explored. The purpose of this study was to examine the role of SIRT6 ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2015.03.024
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:We describe a technique to axially compress a sheep knee joint in an MRI scanner and measure articular cartilage deformation. As an initial application, tibial articular cartilage deformation patterns after 2 h of static loading before and after medial meniscectomy are compared. METHODS:Precision was establi...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2006.01.011
更新日期:2006-08-01 00:00:00
abstract::Motivated by the conceptual framework of multi-scale biomechanics, this narrative review highlights recent major advances with a focus on gait and joint kinematics, then tissue-level mechanics, cell mechanics and mechanotransduction, matrix mechanics, and finally the nanoscale mechanics of matrix macromolecules. A lit...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2015.08.018
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To examine the feasibility of a 10-week gait modification program in people with medial tibiofemoral knee osteoarthritis (OA), and to assess changes in clinical and biomechanical outcomes. DESIGN:Fifteen people with medial knee OA completed 10 weeks of gait modification focusing on increasing toe-out angle d...
journal_title:Osteoarthritis and cartilage
pub_type: 临床试验,杂志文章
doi:10.1016/j.joca.2014.04.007
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:The hip and knee joints differ biomechanically in terms of contact stresses, fluid lubrication and wear patterns. These differences may be reflected in the synovial fluid (SF) composition of the two joints, but the nature of these differences remains unknown. The objective was to identify differences in osteo...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2019.07.017
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:To compare the actions of fibroblast growth factor-basic (bFGF), insulin-like growth factor-I (IGF-I), platelet derived growth factor-AB (PDGF-AB), and transforming growth factor-beta 1 (TGF-beta1) on bovine meniscus tissue explants with and without static mechanical compression. DESIGN:Meniscus tissue expla...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2004.05.007
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:To investigate the in vivo role of the IRE1/XBP1 unfolded protein response (UPR) signaling pathway in cartilage. DESIGN:Xbp1(flox/flox).Col2a1-Cre mice (Xbp1(CartΔEx2)), in which XBP1 activity is ablated specifically from cartilage, were analyzed histomorphometrically by Alizarin red/Alcian blue skeletal pre...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2015.01.001
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE AND DESIGN:Transection of the anterior cruciate ligament 2 weeks after ipsilateral hindlimb deafferentation leads to osteoarthritis of the knee joint within 3 weeks. We analyzed the gait of six dogs that underwent this procedure in order to identify kinematic changes that could account for this rapid joint de...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/s1063-4584(97)80012-x
更新日期:1997-05-01 00:00:00
abstract:OBJECTIVE:Recently we reported that glucosamine sulphate (GS) did not have an effect on the symptoms and progression of primary care patients with hip osteoarthritis (OA). The aim of this present study was to investigate whether there are subgroups of patients with hip OA for whom GS might be an effective therapy. MET...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.joca.2008.05.022
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:The optimal therapy for femoroacetabular impingement (FAI) is unclear. The aim of this systematic review was to examine the evidence for surgical and non-surgical treatment of FAI on symptom and structural outcomes. DESIGN:MEDLINE and EMBASE were searched electronically. Surgical and non-surgical management ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2016.04.014
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To validate simple criteria that distinguish flat flexible from stable supportive walking shoes by comparing their effects on the knee adduction moment (KAM) in people with medial knee osteoarthritis (OA). DESIGN:This was a cross-sectional biomechanical study. We proposed five criteria to differentiate flat ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.joca.2016.10.001
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:Meniscal injuries can lead to mechanical overloading of articular cartilage and eventually to knee osteoarthritis. The objective was to evaluate the potential of contrast enhanced computed tomography (CECT) to image contrast agent (CA) diffusion in human menisci with a clinical cone beam CT scanner. DESIGN:I...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2015.03.037
更新日期:2015-08-01 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 investigate the biosynthetic response of elderly human femoral head articular cartilage to mechanical stimulation in vitro and its variation with site. METHOD:Full-depth cartilage biopsies of articular cartilage were removed from defined sites on 10 femoral heads from patients aged 68-95 years. Cartilage ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.07.002
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVE:This narrative review covers original research publications related to imaging advancements in osteoarthritis (OA) published in the English language between 1st April 2016 and 30th April 2017. METHODS:Relevant human studies (excluding pre-clinical and in vitro studies), were searched and selected from PubMed...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2018.01.007
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:This study was performed to non-invasively visualize and characterize osteochondral (OC) repair in ex vivo goat stifles using an 8 T magnetic resonance imaging (MRI) scanner and to compare the MR morphology with images obtained from 1.5 T, gross morphology and histology. METHODS:Mature, neutered male goats w...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.08.006
更新日期:2006-01-01 00:00:00
abstract::The design and execution of prevention trials for OA have methodological issues that are distinct from trials designed to impact prevalent disease. Disease definitions and their precise and sensitive measurement, identification of high-risk populations, the nature of the intervention (pharmaceutical, nutraceutical, be...
journal_title:Osteoarthritis and cartilage
pub_type: 共识发展会议,杂志文章
doi:10.1016/j.joca.2010.10.031
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:This study aims to apply gene expression profiling technology to gain insight into the molecular regulation of mesenchymal chondrogenesis. METHODS:The experimental system consists of micromass cultures of C3H10T1/2 cells, a murine multipotential embryonic cell line, treated with the chondroinductive growth f...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1053/joca.2001.0478
更新日期:2002-01-01 00:00:00
abstract:OBJECTIVE:The purposes of this study were to assess whether local anesthetics (LAs), such as ropivacaine and bupivacaine, could induce apoptosis of rabbit annulus fibrosus (AF) cells in vitro and further to explore the possible underlying mechanism. METHODS:Rabbit AF cells at second passage were treated with saline so...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2015.05.013
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:To identify the prevalence of sarcopenic obesity, a phenotype of low muscle mass and high adiposity, in adults with end-stage knee osteoarthritis (OA). Various diagnostic criteria, including assessment of muscle/fat mass, muscle strength and physical function, were used to identify patients with and without s...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2019.05.026
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:To develop a reliable, valid, and responsive self-administered questionnaire to probe pain, stiffness and physical disability in patients with osteoarthritis (OA) of the hand. DESIGN:In order to assess the dimensionality of the symptomatology of hand OA, a self-administered questionnaire was developed to pro...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1053/joca.2002.0837
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:To assess the efficacy and safety of intra-articular hyaluronic acid (IAHA) injection in knee joints of patients with Kashin-Beck disease (KBD). METHODS:We searched nine electronic databases as well as unpublished data from inception until November 30th 2013 using a combination of search terms for KBD and hy...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.joca.2014.04.012
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVES:The delayed Gadolinium-Enhanced MRI of Cartilage (dGEMRIC) technique is a method proposed for non-invasive measurement of cartilage glycosaminoglycan (GAG) content. In this method, gadopentetate (Gd-DTPA²⁻) is assumed to distribute in cartilage in inverse relation to the GAG distribution, thus allowing quant...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2011.11.016
更新日期:2012-02-01 00:00:00