Pub Date : 2024-10-24DOI: 10.1016/j.ocarto.2024.100539
Patrick Weber , Kajetana Bevc , David Fercher , Sami Kauppinen , Shipin Zhang , Maryam Asadikorayem , Lucia Baixauli Marin , Tanqi Zhang , Tuomas Frondelius , Gian Salzmann , Valentino Bruhin , Jakob Hax , Gonçalo Barreto , Mikko A.J. Finnilä , Marcy Zenobi-Wong
Objective
To characterize inflammatory and mechanical changes in the collagenase-induced OA (CIOA) model in rats.
Design
Skeletally mature, 6-month-old Wistar rats received unilateral intraarticular injections of saline, 500 U or 1000 U of collagenase on days 0 and 2 of the study. Joint tissues were harvested on either day 4 or 70 to evaluate the acute and long-term changes. Blood biomarkers, gait asymmetry and mechanical hyperalgesia were assessed repeatedly up until day 70.
Results
The intraarticular injection of collagenase triggered an increase in cartilage degeneration and bone resorption over time, particularly for 1000 U. Similarly, mild synovitis was observed on day 70 with an increased number of synovial lining cells, increased fibrosis, and infiltration of peripheral macrophages. Mechanistically, these findings were linked to a dose-related mechanical weakening of the anterior cruciate ligament (ACL), which caused persistent joint destabilization throughout the study. Furthermore, the collagenase injection triggered acute inflammation and swelling of the synovium on day 4 and an acute systemic inflammatory response with increased cytokine and peripheral blood immune cell levels. While mild synovitis persisted until day 70, the systemic inflammatory response returned to control levels after 8 days. Similarly, the observed acute changes in gait and mechanical hyperalgesia also returned to baseline after 21 days.
Conclusion
By evaluating inflammatory and mechanical factors at different doses and timepoints, our characterization enables a more targeted study design and increases the clinical relevance of future studies involving the CIOA model.
{"title":"The collagenase-induced osteoarthritis (CIOA) model: Where mechanical damage meets inflammation","authors":"Patrick Weber , Kajetana Bevc , David Fercher , Sami Kauppinen , Shipin Zhang , Maryam Asadikorayem , Lucia Baixauli Marin , Tanqi Zhang , Tuomas Frondelius , Gian Salzmann , Valentino Bruhin , Jakob Hax , Gonçalo Barreto , Mikko A.J. Finnilä , Marcy Zenobi-Wong","doi":"10.1016/j.ocarto.2024.100539","DOIUrl":"10.1016/j.ocarto.2024.100539","url":null,"abstract":"<div><h3>Objective</h3><div>To characterize inflammatory and mechanical changes in the collagenase-induced OA (CIOA) model in rats.</div></div><div><h3>Design</h3><div>Skeletally mature, 6-month-old Wistar rats received unilateral intraarticular injections of saline, 500 U or 1000 U of collagenase on days 0 and 2 of the study. Joint tissues were harvested on either day 4 or 70 to evaluate the acute and long-term changes. Blood biomarkers, gait asymmetry and mechanical hyperalgesia were assessed repeatedly up until day 70.</div></div><div><h3>Results</h3><div>The intraarticular injection of collagenase triggered an increase in cartilage degeneration and bone resorption over time, particularly for 1000 U. Similarly, mild synovitis was observed on day 70 with an increased number of synovial lining cells, increased fibrosis, and infiltration of peripheral macrophages. Mechanistically, these findings were linked to a dose-related mechanical weakening of the anterior cruciate ligament (ACL), which caused persistent joint destabilization throughout the study. Furthermore, the collagenase injection triggered acute inflammation and swelling of the synovium on day 4 and an acute systemic inflammatory response with increased cytokine and peripheral blood immune cell levels. While mild synovitis persisted until day 70, the systemic inflammatory response returned to control levels after 8 days. Similarly, the observed acute changes in gait and mechanical hyperalgesia also returned to baseline after 21 days.</div></div><div><h3>Conclusion</h3><div>By evaluating inflammatory and mechanical factors at different doses and timepoints, our characterization enables a more targeted study design and increases the clinical relevance of future studies involving the CIOA model.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100539"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-24DOI: 10.1016/j.ocarto.2024.100536
Shiyi Julia Zhu , Rachel K. Nelligan , Rana S. Hinman , Alexander J. Kimp , Peixuan Li , Anurika De Silva , Jenny Harrison , Kim L. Bennell
Background
Knee osteoarthritis (OA) is a leading contributor to global disability, with exercise proven to be an effective treatment. Tai Chi is a recommended type of exercise, but it is primarily done in person which imposes an accessibility issue. This study aims to evaluate the effects of an online unsupervised program, when provided with online educational information and exercise adherence support, on changes in knee pain and physical function, when compared to online education control for people with knee OA.
Methods
A two-arm, superiority parallel-design, pragmatic randomised controlled trial will be conducted involving 178 people with a clinical diagnosis of knee OA. After completing baseline assessment, participants will be randomly assigned to either: i) “My Joint Education”, an education control website containing OA information only; or ii) “My Joint Tai Chi”, an intervention website containing the same information as the control, a 12-week unsupervised online Tai Chi program to be undertaken at home 3 times a week, and information about an exercise adherence support app. All participants will be reassessed at 12 weeks after randomisation. Primary outcomes are overall knee pain during walking and physical function using the Western Ontario and McMaster Universities Osteoarthritis Index subscale.
Discussion
This randomised controlled trial will provide evidence about the effectiveness of the “My Joint Tai Chi” website compared to “My Joint Education” website on self-reported knee pain and physical function for people with knee OA.
Trial registration
Prospectively registered with the Australia New Zealand Clinical Trials Registry (ID: ACTRN12623000780651) on 18th July 2023.
{"title":"An unsupervised online Tai Chi program for people with knee osteoarthritis (“My Joint Tai Chi”): Study protocol for the RETREAT randomised controlled trial","authors":"Shiyi Julia Zhu , Rachel K. Nelligan , Rana S. Hinman , Alexander J. Kimp , Peixuan Li , Anurika De Silva , Jenny Harrison , Kim L. Bennell","doi":"10.1016/j.ocarto.2024.100536","DOIUrl":"10.1016/j.ocarto.2024.100536","url":null,"abstract":"<div><h3>Background</h3><div>Knee osteoarthritis (OA) is a leading contributor to global disability, with exercise proven to be an effective treatment. Tai Chi is a recommended type of exercise, but it is primarily done in person which imposes an accessibility issue. This study aims to evaluate the effects of an online unsupervised program, when provided with online educational information and exercise adherence support, on changes in knee pain and physical function, when compared to online education control for people with knee OA.</div></div><div><h3>Methods</h3><div>A two-arm, superiority parallel-design, pragmatic randomised controlled trial will be conducted involving 178 people with a clinical diagnosis of knee OA. After completing baseline assessment, participants will be randomly assigned to either: i) “My Joint Education”, an education control website containing OA information only; or ii) “My Joint Tai Chi”, an intervention website containing the same information as the control, a 12-week unsupervised online Tai Chi program to be undertaken at home 3 times a week, and information about an exercise adherence support app. All participants will be reassessed at 12 weeks after randomisation. Primary outcomes are overall knee pain during walking and physical function using the Western Ontario and McMaster Universities Osteoarthritis Index subscale.</div></div><div><h3>Discussion</h3><div>This randomised controlled trial will provide evidence about the effectiveness of the “My Joint Tai Chi” website compared to “My Joint Education” website on self-reported knee pain and physical function for people with knee OA.</div></div><div><h3>Trial registration</h3><div>Prospectively registered with the Australia New Zealand Clinical Trials Registry (ID: ACTRN12623000780651) on 18<sup>th</sup> July 2023.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100536"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-22DOI: 10.1016/j.ocarto.2024.100533
Stephen J. DiMartino , Jingning Mei , Thomas J. Schnitzer , Haitao Gao , Simon Eng , Christine Winslow , Tina Ho , Kenneth C. Turner , Hazem E. Hassan , Yamini Patel , John D. Davis , Ngan Trinh , Angela Manley , Garen Manvelian , Michael Fetell , Ned Braunstein , Gregory P. Geba , Paula Dakin
Background
Pain associated with osteoarthritis (OA) is frequently disabling; treatments are often ineffective or intolerable. Fasinumab selectively inhibits nerve-growth factor and has shown efficacy for the management of OA pain.
Methods
In this randomized, double-blind, phase III safety study, patients with moderate-to-severe OA pain and history of inadequate pain relief received placebo or fasinumab (at 1, 3, 6, and 9 mg every 4 weeks [Q4W] and 1 and 6 mg every 8 weeks [Q8W] for 52 weeks). Primary safety endpoints included adverse events, adjudicated arthropathies (AAs), and joint replacements (JRs). Co-primary endpoints of an efficacy sub-study were change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain and physical function scores. During the study, higher fasinumab doses were discontinued for safety; 1 mg doses continued.
Results
Of 13,945 patients screened, 5331 were randomized; 1074 were included in the efficacy sub-study. AAs and JRs occurred in all groups. Increased severity of disease at baseline was associated with higher rates of AAs and JRs. A dose-dependent risk of AA or JR was observed for fasinumab; in the 1 mg groups, only a small percentage of patients with JR had prior AA. Fasinumab significantly improved WOMAC pain and physical function scores compared with placebo; least squares mean differences versus placebo were −1.22 and −1.20 for 1 mg Q4W and −0.73 and −0.74 for 1 mg Q8W, respectively (P<0.001).
Conclusion
AAs and JRs showed a dose relationship to fasinumab and were associated with baseline OA status. Fasinumab achieved statistically significant improvements in WOMAC pain and physical function scores compared with placebo.
背景与骨关节炎(OA)相关的疼痛常常使人丧失工作能力,而治疗往往无效或无法忍受。方法在这项随机、双盲、III期安全性研究中,中度至重度OA疼痛且疼痛缓解不足的患者接受安慰剂或法舒单抗治疗(每4周[Q4W]1、3、6和9毫克,每8周[Q8W]1和6毫克,共52周)。主要安全性终点包括不良事件、判定的关节病(AA)和关节置换(JR)。疗效子研究的共同主要终点是西安大略和麦克马斯特大学骨关节炎指数(WOMAC)疼痛和身体功能评分的变化。研究期间,出于安全性考虑,停用了较高剂量的法西奴单抗;1 毫克剂量的法西奴单抗继续使用。所有组别都出现了AA和JR。基线时疾病严重程度的增加与较高的 AA 和 JR 发生率有关。观察到法西奴单抗的AA或JR风险与剂量有关;在1毫克组中,只有一小部分JR患者曾有过AA。与安慰剂相比,法舒单抗能明显改善WOMAC疼痛和身体功能评分;与安慰剂相比,1 mg Q4W的最小二乘法均差分别为-1.22和-1.20,1 mg Q8W的最小二乘法均差分别为-0.73和-0.74(P<0.001)。与安慰剂相比,法舒单抗对WOMAC疼痛和身体功能评分的改善具有统计学意义。
{"title":"A phase III study to evaluate the long-term safety and efficacy of fasinumab in patients with pain due to osteoarthritis of the knee or hip","authors":"Stephen J. DiMartino , Jingning Mei , Thomas J. Schnitzer , Haitao Gao , Simon Eng , Christine Winslow , Tina Ho , Kenneth C. Turner , Hazem E. Hassan , Yamini Patel , John D. Davis , Ngan Trinh , Angela Manley , Garen Manvelian , Michael Fetell , Ned Braunstein , Gregory P. Geba , Paula Dakin","doi":"10.1016/j.ocarto.2024.100533","DOIUrl":"10.1016/j.ocarto.2024.100533","url":null,"abstract":"<div><h3>Background</h3><div>Pain associated with osteoarthritis (OA) is frequently disabling; treatments are often ineffective or intolerable. Fasinumab selectively inhibits nerve-growth factor and has shown efficacy for the management of OA pain.</div></div><div><h3>Methods</h3><div>In this randomized, double-blind, phase III safety study, patients with moderate-to-severe OA pain and history of inadequate pain relief received placebo or fasinumab (at 1, 3, 6, and 9 mg every 4 weeks [Q4W] and 1 and 6 mg every 8 weeks [Q8W] for 52 weeks). Primary safety endpoints included adverse events, adjudicated arthropathies (AAs), and joint replacements (JRs). Co-primary endpoints of an efficacy sub-study were change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain and physical function scores. During the study, higher fasinumab doses were discontinued for safety; 1 mg doses continued.</div></div><div><h3>Results</h3><div>Of 13,945 patients screened, 5331 were randomized; 1074 were included in the efficacy sub-study. AAs and JRs occurred in all groups. Increased severity of disease at baseline was associated with higher rates of AAs and JRs. A dose-dependent risk of AA or JR was observed for fasinumab; in the 1 mg groups, only a small percentage of patients with JR had prior AA. Fasinumab significantly improved WOMAC pain and physical function scores compared with placebo; least squares mean differences versus placebo were −1.22 and −1.20 for 1 mg Q4W and −0.73 and −0.74 for 1 mg Q8W, respectively (<em>P<</em>0.001).</div></div><div><h3>Conclusion</h3><div>AAs and JRs showed a dose relationship to fasinumab and were associated with baseline OA status. Fasinumab achieved statistically significant improvements in WOMAC pain and physical function scores compared with placebo.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100533"},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1016/j.ocarto.2024.100535
Daniel Feller , Roxanne van den Berg , Wendy T.M. Enthoven , Edwin H.G. Oei , Sita M. Bierma-Zeinstra , Bart W. Koes , Alessandro Chiarotto
Objective
To determine the association between patient-reported spinal morning stiffness and lumbar disc degeneration (LDD) and systemic inflammation, as measured by C-reactive protein (CRP), in older patients with non-specific back pain. The ultimate objective is to help shape a future definition of spinal osteoarthritis (OA).
Design
Baseline data from the Dutch “Back Complaints in the Older Adults” (BACE) study was used. The relationship between the severity and duration of patient-reported spinal morning stiffness, LDD (i.e., multilevel disc space narrowing and multilevel osteophytes), and CRP was assessed. Regression models adjusted for confounding variables were performed.
Results
Six hundred and seventy-five patients were included. The mean age was 66.52 years (SD 7.69), with a mean CRP of 3.20 mg/L (SD 7.61). The severity of spinal morning stiffness was associated with multilevel disc space narrowing: OR 2.89 (95 % CI: 1.24 to 6.74) for ‘mild’, OR 2.97 (95 % CI: 1.18 to 7.44) for ‘moderate’, OR 3.23 (95 % CI: 1.17 to 8.90) for ‘severe’, and OR 5.62 (95 % CI: 1.70 to 18.60) for ‘extreme’ morning stiffness severity. However, spinal morning stiffness severity was not associated with multilevel osteophytes, and both multilevel features of LDD showed no associations with the duration of spinal morning stiffness. No associations were found between spinal morning stiffness severity or duration, and CRP levels.
Conclusions
Our results suggest that the severity of patient-reported spinal morning stiffness might be considered in future definitions of symptomatic spinal OA and that spinal morning stiffness is probably a symptom of a degenerative process in the spine rather than a symptom of systemic inflammation in patients with back pain.
目的确定非特异性背痛老年患者中患者报告的脊柱晨僵与腰椎间盘变性(LDD)和以C反应蛋白(CRP)测量的全身炎症之间的关联。设计使用荷兰 "老年人背部不适"(BACE)研究的基线数据。评估了患者报告的脊柱晨僵的严重程度和持续时间、LDD(即多层椎间盘间隙狭窄和多层骨质增生)和 CRP 之间的关系。结果共纳入六百七十五名患者。平均年龄为 66.52 岁(SD 7.69),平均 CRP 为 3.20 mg/L(SD 7.61)。脊柱晨僵的严重程度与多级椎间盘间隙狭窄有关:轻度 "的 OR 值为 2.89(95 % CI:1.24 至 6.74),"中度 "的 OR 值为 2.97(95 % CI:1.18 至 7.44),"重度 "的 OR 值为 3.23(95 % CI:1.17 至 8.90),"极重度 "的 OR 值为 5.62(95 % CI:1.70 至 18.60)。然而,脊柱晨僵的严重程度与多层次骨质增生无关,LDD的两个多层次特征与脊柱晨僵的持续时间无关。结论我们的研究结果表明,在未来对有症状的脊柱 OA 进行定义时,可以考虑患者报告的脊柱晨僵的严重程度,脊柱晨僵可能是脊柱退行性过程的症状,而不是背痛患者全身炎症的症状。
{"title":"The association of spinal morning stiffness with lumbar disc degeneration and C-reactive protein: The back complaints in older adults (BACE) study","authors":"Daniel Feller , Roxanne van den Berg , Wendy T.M. Enthoven , Edwin H.G. Oei , Sita M. Bierma-Zeinstra , Bart W. Koes , Alessandro Chiarotto","doi":"10.1016/j.ocarto.2024.100535","DOIUrl":"10.1016/j.ocarto.2024.100535","url":null,"abstract":"<div><h3>Objective</h3><div>To determine the association between patient-reported spinal morning stiffness and lumbar disc degeneration (LDD) and systemic inflammation, as measured by C-reactive protein (CRP), in older patients with non-specific back pain. The ultimate objective is to help shape a future definition of spinal osteoarthritis (OA).</div></div><div><h3>Design</h3><div>Baseline data from the Dutch “Back Complaints in the Older Adults” (BACE) study was used. The relationship between the severity and duration of patient-reported spinal morning stiffness, LDD (i.e., multilevel disc space narrowing and multilevel osteophytes), and CRP was assessed. Regression models adjusted for confounding variables were performed.</div></div><div><h3>Results</h3><div>Six hundred and seventy-five patients were included. The mean age was 66.52 years (SD 7.69), with a mean CRP of 3.20 mg/L (SD 7.61). The severity of spinal morning stiffness was associated with multilevel disc space narrowing: OR 2.89 (95 % CI: 1.24 to 6.74) for ‘mild’, OR 2.97 (95 % CI: 1.18 to 7.44) for ‘moderate’, OR 3.23 (95 % CI: 1.17 to 8.90) for ‘severe’, and OR 5.62 (95 % CI: 1.70 to 18.60) for ‘extreme’ morning stiffness severity. However, spinal morning stiffness severity was not associated with multilevel osteophytes, and both multilevel features of LDD showed no associations with the duration of spinal morning stiffness. No associations were found between spinal morning stiffness severity or duration, and CRP levels.</div></div><div><h3>Conclusions</h3><div>Our results suggest that the severity of patient-reported spinal morning stiffness might be considered in future definitions of symptomatic spinal OA and that spinal morning stiffness is probably a symptom of a degenerative process in the spine rather than a symptom of systemic inflammation in patients with back pain.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100535"},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1016/j.ocarto.2024.100534
Robin M. Queen , Liubov Arbeeva , Daniel N. Bracey , Derek Hales , Carla Hill , Katie F. Huffman , Todd A. Schwartz , Kelli D. Allen
Objective
This pilot trial examined a Physical Activity and Symmetry (PAS) intervention focused on common deficits of physical inactivity and joint loading asymmetry following total knee arthroplasty (TKA).
Design
Participants (n = 60) were enrolled during routine physical therapy (PT) following TKA and randomized to the PAS intervention or an attention (ATT) control group. The PAS intervention included physical activity counseling and balance exercise to address joint loading symmetry; content was delivered during 2 sessions at the end of routine PT plus supplemental sessions 4-weeks and 8-weeks following PT. The ATT control condition included supplemental sessions at 4-weeks and 8-weeks focused on general evaluation of surgical recovery benchmarks. Primary outcomes were weekly minutes of moderate to vigorous physical activity (MVPA), measured with an accelerometer, and peak force loading symmetry (limb symmetry index; LSI) during a 10 m walk, measured with a 3-sensor in-shoe device. General linear mixed models compared changes in outcomes between randomized groups at 3-month and 6-month follow-up.
Results
Both PAS and ATT groups increased MVPA, but there were no clinically meaningful between-group differences at 3- or 6-month follow-up (p > 0.05). There were also no clinically meaningful between-group differences LSI at 3- or 6-month follow-up (p > 0.05).
Conclusion
The PAS intervention did not yield improvements beyond ATT control. It is possible that PAS components were being delivered as part of routine PT, and a more intensive intervention (e.g., more visits, guidance for exercise progression) or targeted approach (e.g., those with deficits at end of routine care) may be needed to further improve outcomes.
{"title":"Physical activity and symmetry following total knee arthroplasty: Results of a pilot randomized trial","authors":"Robin M. Queen , Liubov Arbeeva , Daniel N. Bracey , Derek Hales , Carla Hill , Katie F. Huffman , Todd A. Schwartz , Kelli D. Allen","doi":"10.1016/j.ocarto.2024.100534","DOIUrl":"10.1016/j.ocarto.2024.100534","url":null,"abstract":"<div><h3>Objective</h3><div>This pilot trial examined a Physical Activity and Symmetry (PAS) intervention focused on common deficits of physical inactivity and joint loading asymmetry following total knee arthroplasty (TKA).</div></div><div><h3>Design</h3><div>Participants (n = 60) were enrolled during routine physical therapy (PT) following TKA and randomized to the PAS intervention or an attention (ATT) control group. The PAS intervention included physical activity counseling and balance exercise to address joint loading symmetry; content was delivered during 2 sessions at the end of routine PT plus supplemental sessions 4-weeks and 8-weeks following PT. The ATT control condition included supplemental sessions at 4-weeks and 8-weeks focused on general evaluation of surgical recovery benchmarks. Primary outcomes were weekly minutes of moderate to vigorous physical activity (MVPA), measured with an accelerometer, and peak force loading symmetry (limb symmetry index; LSI) during a 10 m walk, measured with a 3-sensor in-shoe device. General linear mixed models compared changes in outcomes between randomized groups at 3-month and 6-month follow-up.</div></div><div><h3>Results</h3><div>Both PAS and ATT groups increased MVPA, but there were no clinically meaningful between-group differences at 3- or 6-month follow-up (p > 0.05). There were also no clinically meaningful between-group differences LSI at 3- or 6-month follow-up (p > 0.05).</div></div><div><h3>Conclusion</h3><div>The PAS intervention did not yield improvements beyond ATT control. It is possible that PAS components were being delivered as part of routine PT, and a more intensive intervention (e.g., more visits, guidance for exercise progression) or targeted approach (e.g., those with deficits at end of routine care) may be needed to further improve outcomes.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100534"},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1016/j.ocarto.2024.100532
Trevor A. Lentz , Preston Roundy , Emily Poehlein , Cynthia L. Green , Richard C. Mather III , William Jiranek
Objective
Osteoarthritis management programs (OAMPs) have become a more common way to deliver patient-centered care. However, there is limited information on real-world use of these programs to guide implementation, payment policy, accessibility, and scaling in the United States. This paper describes 5-year use metrics for the Duke Joint Health Program, an OAMP embedded within a US academic health system.
Method
This analysis includes patients referred into the Program between October 2017 and April 2022. We generated descriptive statistics of referral and enrollment totals, demographics and patient-reported measures of enrollees, retention and healthcare use metrics (e.g., office visit frequency), and data capture rates for patient-reported outcomes.
Results
During the study period, 6863 patients were referred to the program and 4162 (61 %) enrolled. We observed statistically significant differences between those who did and did not enroll by age (mean difference ± SE: 2.49 ± 2.8 years), sex (70.0 % vs 67.7 % female), race (65.1 % vs 55.3 % Caucasian/White), employment status (50.0 % vs 40.2 % retired), and insurance type (53.5 % vs 47.0 % Medicare). The median (Q1, Q3) number of visits was 2 (1, 4) and ranged from 1 to 67. The median (Q1, Q3) number of days from first to last program visit was 23 (0, 84) days. Questionnaire completion rates were 72 % at baseline, 46 % at 6 weeks, 39 % at 3 months, and 40 % at 6 and 12 months.
Conclusion
Findings can guide the planning, development, and implementation of future OAMPs and inform policies to ensure programs are accessible and equitable.
{"title":"Referral, enrollment, and health care use in a comprehensive patient-centered management program for osteoarthritis of the hip and knee","authors":"Trevor A. Lentz , Preston Roundy , Emily Poehlein , Cynthia L. Green , Richard C. Mather III , William Jiranek","doi":"10.1016/j.ocarto.2024.100532","DOIUrl":"10.1016/j.ocarto.2024.100532","url":null,"abstract":"<div><h3>Objective</h3><div>Osteoarthritis management programs (OAMPs) have become a more common way to deliver patient-centered care. However, there is limited information on real-world use of these programs to guide implementation, payment policy, accessibility, and scaling in the United States. This paper describes 5-year use metrics for the Duke Joint Health Program, an OAMP embedded within a US academic health system.</div></div><div><h3>Method</h3><div>This analysis includes patients referred into the Program between October 2017 and April 2022. We generated descriptive statistics of referral and enrollment totals, demographics and patient-reported measures of enrollees, retention and healthcare use metrics (e.g., office visit frequency), and data capture rates for patient-reported outcomes.</div></div><div><h3>Results</h3><div>During the study period, 6863 patients were referred to the program and 4162 (61 %) enrolled. We observed statistically significant differences between those who did and did not enroll by age (mean difference ± SE: 2.49 ± 2.8 years), sex (70.0 % vs 67.7 % female), race (65.1 % vs 55.3 % Caucasian/White), employment status (50.0 % vs 40.2 % retired), and insurance type (53.5 % vs 47.0 % Medicare). The median (Q1, Q3) number of visits was 2 (1, 4) and ranged from 1 to 67. The median (Q1, Q3) number of days from first to last program visit was 23 (0, 84) days. Questionnaire completion rates were 72 % at baseline, 46 % at 6 weeks, 39 % at 3 months, and 40 % at 6 and 12 months.</div></div><div><h3>Conclusion</h3><div>Findings can guide the planning, development, and implementation of future OAMPs and inform policies to ensure programs are accessible and equitable.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100532"},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142538758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.ocarto.2024.100530
T. Mark-Christensen , K. Thorborg , T. Kallemose , T. Bandholm
Importance
Comparative effectiveness trials have not shown superiority of one type of physical rehabilitation over another following total hip (THA) and knee (TKA) arthroplasty. We therefore ask the fundamental effectiveness question: Does physical rehabilitation “work” better than no physical rehabilitation?
Objective
To compare the effectiveness of a 6-week program of physical rehabilitation (home-based telerehabilitation, or home-based rehabilitation) to no physical rehabilitation following THA and TKA.
Design
3-arm,randomized, controlled, superiority trial with blinded outcome assessments. 377 patients (210 THA/167 TKA) were screened for eligibility before the targeted sample size of 168 patients was reached. Outcome measures were assessed at baseline, at the end of intervention (6 weeks), and 3 and 12 months postoperatively. The primary outcome was the Hip disability and Osteoarthritis Outcome Score (HOOS)/Knee injury and Osteoarthritis Outcome Score (KOOS)-subscale: function in daily living. Secondary outcomes included: HOOS/KOOS-subscales: pain, symptoms, and quality of life, patient global assessment, analgesics, walking aids, 30-s chair stand test, 4 × 10 m fast-paced walk test, exercise adherence, and satisfaction.
Results
Comparing physical rehabilitation (home-based telerehabilitation, and home-based rehabilitation) to no physical rehabilitation, the mean group-differences for the primary outcome were 3.3 (95%CI: −1.9 to 8.6; p = 0.10) points at 6 weeks, and 1.9 (95%CI: −3.7 to 7.6; p = 0.25) and 2.6 (95%CI: −4.4 to 9.6; p = 0.23) points at the 3- and 12-months follow-ups, respectively.
Conclusion
Physical rehabilitation was not superior to the no physical rehabilitation comparator following THA or TKA in terms of self-reported function or any of the secondary outcomes.
{"title":"Clinical benefit of physical rehabilitation after total hip and knee arthroplasty: A pragmatic, randomized, controlled trial (The DRAW1 trial)","authors":"T. Mark-Christensen , K. Thorborg , T. Kallemose , T. Bandholm","doi":"10.1016/j.ocarto.2024.100530","DOIUrl":"10.1016/j.ocarto.2024.100530","url":null,"abstract":"<div><h3>Importance</h3><div>Comparative effectiveness trials have not shown superiority of one type of physical rehabilitation over another following total hip (THA) and knee (TKA) arthroplasty. We therefore ask the fundamental effectiveness question: Does physical rehabilitation “work” better than no physical rehabilitation?</div></div><div><h3>Objective</h3><div>To compare the effectiveness of a 6-week program of physical rehabilitation (home-based telerehabilitation, or home-based rehabilitation) to no physical rehabilitation following THA and TKA.</div></div><div><h3>Design</h3><div>3-arm,randomized, controlled, superiority trial with blinded outcome assessments. 377 patients (210 THA/167 TKA) were screened for eligibility before the targeted sample size of 168 patients was reached. Outcome measures were assessed at baseline, at the end of intervention (6 weeks), and 3 and 12 months postoperatively. The primary outcome was the Hip disability and Osteoarthritis Outcome Score (HOOS)/Knee injury and Osteoarthritis Outcome Score (KOOS)-subscale: function in daily living. Secondary outcomes included: HOOS/KOOS-subscales: pain, symptoms, and quality of life, patient global assessment, analgesics, walking aids, 30-s chair stand test, 4 × 10 m fast-paced walk test, exercise adherence, and satisfaction.</div></div><div><h3>Results</h3><div>Comparing physical rehabilitation (home-based telerehabilitation, and home-based rehabilitation) to no physical rehabilitation, the mean group-differences for the primary outcome were 3.3 (95%CI: −1.9 to 8.6; p = 0.10) points at 6 weeks, and 1.9 (95%CI: −3.7 to 7.6; p = 0.25) and 2.6 (95%CI: −4.4 to 9.6; p = 0.23) points at the 3- and 12-months follow-ups, respectively.</div></div><div><h3>Conclusion</h3><div>Physical rehabilitation was not superior to the no physical rehabilitation comparator following THA or TKA in terms of self-reported function or any of the secondary outcomes.</div></div><div><h3>Trial registration</h3><div>NCT03750448 (November 23, 2018), URL: <span><span>https://clinicaltrials.gov/ct2/show/NCT03750448</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100530"},"PeriodicalIF":0.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.ocarto.2024.100529
Mary A. Bucklin , Eric C. Gehrke , Jennifer C. Westrick , Michael Gottlieb , John T. Martin
Objective
Chronic low back pain (cLBP) is a complex disease with biological, psychological, and social components and the complex interactions of these components are poorly understood. Chronic psychological stress (CPS) (anxiety, depression, etc.) and pathological changes in spinal tissue (osteoporosis, disc degeneration, etc.) are frequently and independently associated with cLBP, yet their explicit relationship has not been collectively reviewed. The objective of this scoping review is to investigate the current state of research on how CPS may impact spinal tissue pathology.
Design
Five steps were utilized to conduct this scoping review: 1) identify a research objective and establish a search strategy, 2) identify research articles, 3) select research articles that meet search criteria, 4) extract data, 5) summarize and report results.
Results
We identified N = 56 articles relating CPS to spinal pathology. Of those that identified a relationship between CPS and spine pathology (N = 39), most (N = 24) described decreased lumbar vertebral bone mineral density (BMD) between depression and control groups. Animal studies (N = 8) were limited to mice and confirmed a causal relationship between CPS and lower vertebral BMD. Only a few additional human studies (N = 9) documented relationships between other various forms of CPS and spinal tissue pathologies.
Conclusion
This scoping review documents evidence of a relationship between CPS and decreased spine health in humans as well as a causal relationship between the initiation of CPS and decreased BMD in animals. As few studies evaluated disease in other spinal anatomy in relationship to CPS, future work in this area is warranted. Further exploration of CPS beyond depression is warranted as well.
{"title":"Depression predicts decreased lumbar bone mineral density: A scoping review of chronic psychological stress and spinal tissue pathology","authors":"Mary A. Bucklin , Eric C. Gehrke , Jennifer C. Westrick , Michael Gottlieb , John T. Martin","doi":"10.1016/j.ocarto.2024.100529","DOIUrl":"10.1016/j.ocarto.2024.100529","url":null,"abstract":"<div><h3>Objective</h3><div>Chronic low back pain (cLBP) is a complex disease with biological, psychological, and social components and the complex interactions of these components are poorly understood. Chronic psychological stress (CPS) (anxiety, depression, etc.) and pathological changes in spinal tissue (osteoporosis, disc degeneration, etc.) are frequently and independently associated with cLBP, yet their explicit relationship has not been collectively reviewed. The objective of this scoping review is to investigate the current state of research on how CPS may impact spinal tissue pathology.</div></div><div><h3>Design</h3><div>Five steps were utilized to conduct this scoping review: 1) identify a research objective and establish a search strategy, 2) identify research articles, 3) select research articles that meet search criteria, 4) extract data, 5) summarize and report results.</div></div><div><h3>Results</h3><div>We identified N = 56 articles relating CPS to spinal pathology. Of those that identified a relationship between CPS and spine pathology (N = 39), most (N = 24) described decreased lumbar vertebral bone mineral density (BMD) between depression and control groups. Animal studies (N = 8) were limited to mice and confirmed a causal relationship between CPS and lower vertebral BMD. Only a few additional human studies (N = 9) documented relationships between other various forms of CPS and spinal tissue pathologies.</div></div><div><h3>Conclusion</h3><div>This scoping review documents evidence of a relationship between CPS and decreased spine health in humans as well as a causal relationship between the initiation of CPS and decreased BMD in animals. As few studies evaluated disease in other spinal anatomy in relationship to CPS, future work in this area is warranted. Further exploration of CPS beyond depression is warranted as well.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100529"},"PeriodicalIF":0.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-12DOI: 10.1016/j.ocarto.2024.100527
Christian S. Thudium , Sten Rasmussen , Morten A. Karsdal , Anne-Christine Bay-Jensen
Objective
The development of disease-modifying drugs is limited by OA's heterogeneity and the challenge of defining clinical endpoints. Serological biomarkers are considered potential surrogate endpoints, but their contribution from single joints to systemic levels in OA patients is unclear. In this exploratory study we longitudinally assessed systemic biomarker levels' response to tissue damage and healing before and after surgery in patients undergoing knee or hip joint replacement revision for aseptic failure. Patients with chronic pain associated with a prior hip or knee arthroplasty, but not receiving revision surgery were included as control.
Method
The serological biomarker of MMP mediated type III collagen degradation C3M, associated with synovial tissue degradation, was measured at baseline before revision surgery, after revision surgery and at a 6-month follow-up in 48 patients with aseptic loosening of a knee or hip prosthesis and in 18 patients with chronic pain from a hip or knee prosthesis. Longitudinal changes in biomarkers were modeled using linear mixed models.
Results
No differences between the aseptic loosening and chronic pain groups were observed at baseline. Revision surgery in the aseptic loosening group led to a swift increase in C3M, which normalized within 2–3 months. No changes in biomarker level were observed in chronic pain patients over three months.
Conclusion
These findings suggest that tissue damage in a single joint significantly impacts systemic biomarker levels and underscores the relevance of systemic biomarkers in assessing local tissue remodeling.
目标由于 OA 的异质性和确定临床终点的挑战性,疾病调整药物的开发受到了限制。血清学生物标志物被认为是潜在的替代终点,但它们对 OA 患者从单个关节到全身水平的贡献尚不清楚。在这项探索性研究中,我们纵向评估了因无菌手术失败而接受膝关节或髋关节置换翻修手术的患者在手术前后全身生物标志物水平对组织损伤和愈合的反应。方法在 48 名膝关节或髋关节假体无菌性松动患者和 18 名髋关节或膝关节假体慢性疼痛患者中,分别在翻修手术前基线、翻修手术后和 6 个月随访时测量与滑膜组织降解有关的 MMP 介导的 III 型胶原降解血清生物标志物 C3M。采用线性混合模型对生物标志物的纵向变化进行建模。结果无菌性松动组和慢性疼痛组在基线时未观察到差异。无菌性松动组进行翻修手术后,C3M迅速升高,并在2-3个月内恢复正常。结论这些研究结果表明,单个关节的组织损伤会显著影响全身生物标志物水平,并强调了全身生物标志物在评估局部组织重塑中的相关性。
{"title":"Association between type III collagen degradation and local tissue damage of a single joint","authors":"Christian S. Thudium , Sten Rasmussen , Morten A. Karsdal , Anne-Christine Bay-Jensen","doi":"10.1016/j.ocarto.2024.100527","DOIUrl":"10.1016/j.ocarto.2024.100527","url":null,"abstract":"<div><h3>Objective</h3><div>The development of disease-modifying drugs is limited by OA's heterogeneity and the challenge of defining clinical endpoints. Serological biomarkers are considered potential surrogate endpoints, but their contribution from single joints to systemic levels in OA patients is unclear. In this exploratory study we longitudinally assessed systemic biomarker levels' response to tissue damage and healing before and after surgery in patients undergoing knee or hip joint replacement revision for aseptic failure. Patients with chronic pain associated with a prior hip or knee arthroplasty, but not receiving revision surgery were included as control.</div></div><div><h3>Method</h3><div>The serological biomarker of MMP mediated type III collagen degradation C3M, associated with synovial tissue degradation, was measured at baseline before revision surgery, after revision surgery and at a 6-month follow-up in 48 patients with aseptic loosening of a knee or hip prosthesis and in 18 patients with chronic pain from a hip or knee prosthesis. Longitudinal changes in biomarkers were modeled using linear mixed models.</div></div><div><h3>Results</h3><div>No differences between the aseptic loosening and chronic pain groups were observed at baseline. Revision surgery in the aseptic loosening group led to a swift increase in C3M, which normalized within 2–3 months. No changes in biomarker level were observed in chronic pain patients over three months.</div></div><div><h3>Conclusion</h3><div>These findings suggest that tissue damage in a single joint significantly impacts systemic biomarker levels and underscores the relevance of systemic biomarkers in assessing local tissue remodeling.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100527"},"PeriodicalIF":0.0,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-10DOI: 10.1016/j.ocarto.2024.100528
Ernesto Canalis , Lauren Schilling , Emily Denker
Objective
To further our understanding of the role of tumor necrosis factor (TNF)α on the inflammatory response in chondrocytes.
Design
We explored the effects of TNFα on the transcriptome of epiphyseal chondrocytes from newborn C57BL/6 mice at the total and single cell (sc) resolution.
Results
Gene set enrichment analysis of total RNA-Seq from TNFα-treated chondrocytes revealed enhanced response to biotic stimulus, defense and immune response and cytokine signaling and suppressed cartilage and skeletal morphogenesis and development. scRNA-Seq analyzed 14,239 cells and 24,320 genes and distinguished 16 cell clusters. The more prevalent ones were constituted by limb bud and chondrogenic cells and fibroblasts comprising ∼73 % of the cell population. Genes expressed by joint fibroblasts were detected in 5 clusters comprising ∼45 % of the cells isolated. Pseudotime trajectory finding revealed an association between fibroblast and chondrogenic clusters which was not modified by TNFα. TNFα decreased the total cells recovered by 18.5 % and the chondrogenic, limb bud and mesenchymal clusters by 32 %, 27 % and 7 %, respectively. TNFα had profound effects on the insulin-like growth factor (IGF) axis decreasing Igf1, Igf2 and Igfbp4 and inducing Igfbp3 and Igfbp5, explaining an inhibition of collagen biosynthesis, cartilage and skeletal morphogenesis. Ingenuity Pathway Analysis of scRNA-Seq data revealed that TNFα enhanced the osteoarthritis, rheumatoid arthritis, pathogen induced cytokine storm and interleukin 6 signaling pathways and suppressed fibroblast growth factor signaling.
Conclusions
Epiphyseal chondrocytes are constituted by diverse cell populations distinctly regulated by TNFα to promote inflammation and suppression of matrix biosynthesis and growth.
{"title":"TNFα has differential effects on the transcriptome profile of selected populations in murine cartilage","authors":"Ernesto Canalis , Lauren Schilling , Emily Denker","doi":"10.1016/j.ocarto.2024.100528","DOIUrl":"10.1016/j.ocarto.2024.100528","url":null,"abstract":"<div><h3>Objective</h3><div>To further our understanding of the role of tumor necrosis factor (TNF)α on the inflammatory response in chondrocytes.</div></div><div><h3>Design</h3><div>We explored the effects of TNFα on the transcriptome of epiphyseal chondrocytes from newborn C57BL/6 mice at the total and single cell (sc) resolution.</div></div><div><h3>Results</h3><div>Gene set enrichment analysis of total RNA-Seq from TNFα-treated chondrocytes revealed enhanced response to biotic stimulus, defense and immune response and cytokine signaling and suppressed cartilage and skeletal morphogenesis and development. scRNA-Seq analyzed 14,239 cells and 24,320 genes and distinguished 16 cell clusters. The more prevalent ones were constituted by limb bud and chondrogenic cells and fibroblasts comprising ∼73 % of the cell population. Genes expressed by joint fibroblasts were detected in 5 clusters comprising ∼45 % of the cells isolated. Pseudotime trajectory finding revealed an association between fibroblast and chondrogenic clusters which was not modified by TNFα. TNFα decreased the total cells recovered by 18.5 % and the chondrogenic, limb bud and mesenchymal clusters by 32 %, 27 % and 7 %, respectively. TNFα had profound effects on the insulin-like growth factor (IGF) axis decreasing <em>Igf1</em>, <em>Igf2</em> and <em>Igfbp4</em> and inducing <em>Igfbp3</em> and <em>Igfbp5</em>, explaining an inhibition of collagen biosynthesis, cartilage and skeletal morphogenesis. Ingenuity Pathway Analysis of scRNA-Seq data revealed that TNFα enhanced the osteoarthritis, rheumatoid arthritis, pathogen induced cytokine storm and interleukin 6 signaling pathways and suppressed fibroblast growth factor signaling.</div></div><div><h3>Conclusions</h3><div>Epiphyseal chondrocytes are constituted by diverse cell populations distinctly regulated by TNFα to promote inflammation and suppression of matrix biosynthesis and growth.</div></div>","PeriodicalId":74377,"journal":{"name":"Osteoarthritis and cartilage open","volume":"6 4","pages":"Article 100528"},"PeriodicalIF":0.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}