Bone & Joint ResearchPub Date : 2024-12-16DOI: 10.1302/2046-3758.1312.BJR-2023-0272.R2
Hao Zou, Fei Hu, Xin Wu, Bin Xu, Guifeng Shang, Dong An, Dehao Qin, Xiaolei Zhang, Aofei Yang
{"title":"LINC01089 governs the miR-1287-5p/HSPA4 axis to negatively regulate osteogenic differentiation of mesenchymal stem cells.","authors":"Hao Zou, Fei Hu, Xin Wu, Bin Xu, Guifeng Shang, Dong An, Dehao Qin, Xiaolei Zhang, Aofei Yang","doi":"10.1302/2046-3758.1312.BJR-2023-0272.R2","DOIUrl":"https://doi.org/10.1302/2046-3758.1312.BJR-2023-0272.R2","url":null,"abstract":"<p><strong>Aims: </strong>The involvement of long non-coding RNA (lncRNA) in bone marrow mesenchymal stem cell (MSC) osteogenic differentiation during osteoporosis (OP) development has attracted much attention. In this study, we aimed to disclose how LINC01089 functions in human mesenchymal stem cell (hMSC) osteogenic differentiation, and to study the mechanism by which LINC01089 regulates MSC osteogenesis.</p><p><strong>Methods: </strong>Quantitative reverse transcription polymerase chain reaction (RT-qPCR) and western blotting were performed to analyze LINC01089, miR-1287-5p, and heat shock protein family A (HSP70) member 4 (HSPA4) expression. The osteogenic differentiation of MSCs was assessed through alkaline phosphatase (ALP) activity, alizarin red S (ARS) staining, and by measuring the levels of osteogenic gene marker expressions using commercial kits and RT-qPCR analysis. Cell proliferative capacity was evaluated via the Cell Counting Kit-8 (CCK-8) assay. The binding of miR-1287-5p with LINC01089 and HSPA4 was verified by performing dual-luciferase reporter and RNA immunoprecipitation (RIP) experiments.</p><p><strong>Results: </strong>LINC01089 expression was reinforced in serum samples of OP patients, but it gradually diminished while hMSCs underwent osteogenic differentiation. LINC01089 knockdown facilitated hMSC osteogenic differentiation. This was substantiated by: the increase in ALP activity; ALP, runt-related transcription factor 2 (RUNX2), osteocalcin (OCN), and osteopontin (OPN) messenger RNA (mRNA) levels; and level of ARS staining. Meanwhile, LINC01089 upregulation resulted in the opposite effects. LINC01089 targeted miR-1287-5p, and the LINC01089 knockdown-induced hMSC osteogenic differentiation was repressed by miR-1287-5p depletion. HSPA4 is a downstream function molecule of the LINC01089/miR-1287-5p pathway; miR-1287-5p negatively modulated HSPA4 levels and attenuated its functional effects.</p><p><strong>Conclusion: </strong>LINC01089 negatively regulated hMSC osteogenic differentiation, at least in part, via governing miR-1287-5p/HSPA4 signalling. These findings provide new insights into hMSC osteogenesis and bone metabolism.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"779-789"},"PeriodicalIF":4.7,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142827337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-term hypoxic atmosphere enhances the stemness, immunoregulatory functions, and therapeutic application of human umbilical cord mesenchymal stem cells.","authors":"Qi-Ming Huang, You-Qiong Zhuo, Zhong-Xin Duan, Yin-Lin Long, Jia-Nan Wang, Zhou-Hang Zhang, Shao-Yong Fan, Yong-Ming Huang, Ke-Yu Deng, Hong-Bo Xin","doi":"10.1302/2046-3758.1312.BJR-2024-0136.R2","DOIUrl":"10.1302/2046-3758.1312.BJR-2024-0136.R2","url":null,"abstract":"<p><strong>Aims: </strong>Mesenchymal stem cells (MSCs) are usually cultured in a normoxic atmosphere (21%) in vitro, while the oxygen concentrations in human tissues and organs are 1% to 10% when the cells are transplanted in vivo. However, the impact of hypoxia on MSCs has not been deeply studied, especially its translational application.</p><p><strong>Methods: </strong>In the present study, we investigated the characterizations of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) in hypoxic (1%) and normoxic (21%) atmospheres with a long-term culture from primary to 30 generations, respectively. The comparison between both atmospheres systematically analyzed the biological functions of MSCs, mainly including stemness maintenance, immune regulation, and resistance to chondrocyte apoptosis, and studied their joint function and anti-inflammatory effects in osteoarthritis (OA) rats constructed by collagenase II.</p><p><strong>Results: </strong>We observed that long-term hypoxic culture surpassed normoxic atmosphere during hUC-MSCs culture in respect of promoting proliferation, anti-tumorigenicity, maintaining normal karyotype and stemness, inhibiting senescence, and improving immunoregulatory function and the role of anti-apoptosis in chondrocytes. Furthermore, we demonstrated that the transplantation of long-term hypoxic hUC-MSCs (Hy-MSCs) had a better therapeutic effect on OA rats compared with the hUC-MSCs cultured in the normoxic atmosphere (No-MSCs) in terms of the improved function and swelling recovery in the joints, and substantially inhibited the secretion of pro-inflammatory factors, which effectively alleviated cartilage damage by reducing the expression of matrix metallopeptidase 13 (MMP-13).</p><p><strong>Conclusion: </strong>Our results demonstrate that Hy-MSCs possess immense potential for clinical applications via promoting stemness maintenance and enhancing immunoregulatory function.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"763-777"},"PeriodicalIF":4.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11634399/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142812153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of vitamin K supplementation on bone mineral density at different sites and bone metabolism in the middle-aged and elderly population.","authors":"Chenqi Xie, Jianbao Gong, Chenglong Zheng, Junwei Zhang, Jie Gao, Chunyan Tian, Xiaofei Guo, Shiyou Dai, Tianlin Gao","doi":"10.1302/2046-3758.1312.BJR-2024-0053.R1","DOIUrl":"10.1302/2046-3758.1312.BJR-2024-0053.R1","url":null,"abstract":"<p><strong>Aims: </strong>This meta-analysis and systematic review aimed to comprehensively investigate the effects of vitamin K supplementation on bone mineral density (BMD) at various sites and bone metabolism in middle-aged and older adults.</p><p><strong>Methods: </strong>The databases of PubMed, Web of Science, and Cochrane Library were thoroughly searched from inception to July 2023.</p><p><strong>Results: </strong>The results revealed that vitamin K supplementation increased BMD at the lumbar spine (p = 0.035). Moreover, the pooled effects demonstrated a notable increase in carboxylated osteocalcin (cOC) (p = 0.004), a decrease in uncarboxylated osteocalcin (ucOC) (p < 0.001), and no significant effect on total osteocalcin (tOC) (p = 0.076). Accordingly, the ratio of cOC to ucOC (p = 0.002) significantly increased, while the ratio of ucOC to tOC decreased (p = 0.043). However, there was no significant effect of vitamin K supplementation on other bone metabolism markers, such as cross-linked telopeptide of type 1 collagen (NTx), bone alkaline phosphatase (BAP), and procollagen I N-terminal propeptide (PINP). Subgroup analysis revealed that vitamin K notably enhanced bone health in females by increasing lumbar spine BMD (p = 0.028) and decreasing ucOC (p < 0.001). Vitamin K, especially vitamin K2, exhibited effects on maintaining or increasing lumbar spine BMD, and influencing the balance of cOC and ucOC.</p><p><strong>Conclusion: </strong>This review suggests that the beneficial effects of vitamin K supplementation on bone health primarily involve enhancing the carboxylation of OC rather than altering the total amount of OC.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"750-763"},"PeriodicalIF":4.7,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11631259/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142806250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bone & Joint ResearchPub Date : 2024-12-06DOI: 10.1302/2046-3758.1312.BJR-2024-0103.R1
Morten R Blichfeldt-Eckhardt, Claus Varnum, Jørgen T Lauridsen, Lasse E Rasmussen, Winnie C P Mortensen, Hanne I Jensen, Henrik B Vaegter, Kate L Lambertsen
{"title":"Low-grade systemic inflammation, but not neuroinflammation, is associated with 12-month postoperative outcome after total hip arthroplasty in patients with painful osteoarthritis.","authors":"Morten R Blichfeldt-Eckhardt, Claus Varnum, Jørgen T Lauridsen, Lasse E Rasmussen, Winnie C P Mortensen, Hanne I Jensen, Henrik B Vaegter, Kate L Lambertsen","doi":"10.1302/2046-3758.1312.BJR-2024-0103.R1","DOIUrl":"10.1302/2046-3758.1312.BJR-2024-0103.R1","url":null,"abstract":"<p><strong>Aims: </strong>Better prediction of outcome after total hip arthroplasty (THA) is warranted. Systemic inflammation and central neuroinflammation are possibly involved in progression of osteoarthritis and pain. We explored whether inflammatory biomarkers in blood and cerebrospinal fluid (CSF) were associated with clinical outcome, and baseline pain or disability, 12 months after THA.</p><p><strong>Methods: </strong>A total of 50 patients from the Danish Pain Research Biobank (DANPAIN-Biobank) between January and June 2018 were included. Postoperative outcome was assessed as change in Oxford Hip Score (OHS) from baseline to 12 months after THA, pain was assessed on a numerical rating scale, and disability using the Pain Disability Index. Multiple regression models for each clinical outcome were included for biomarkers in blood and CSF, respectively, including age, sex, BMI, and Kellgren-Lawrence score.</p><p><strong>Results: </strong>Change in OHS was associated with blood concentrations of tumour necrosis factor (TNF), interleukin-8 (IL-8), interleukin-6 receptor (IL-6R), glycoprotein 130 (gp130), and IL-1β (R<sup>2</sup> = 0.28, p = 0.006), but not with CSF biomarkers. Baseline pain was associated with blood concentrations of lymphotoxin alpha (LTα), TNFR1, TNFR2, and IL-6R (R<sup>2</sup> = 0.37, p < 0.001) and CSF concentrations of TNFR1, TNFR2, IL-6, IL-6R, and IL-1Ra (R<sup>2</sup> = 0.40, p = 0.001). Baseline disability was associated with blood concentrations of TNF, LTα, IL-8, IL-6, and IL-1α (R<sup>2</sup> = 0.53, p < 0.001) and CSF concentrations of gp130, TNF, and IL-1β (R<sup>2</sup> = 0.26, p = 0.002). Thus, preoperative systemic low-grade inflammation predicted 12-month postoperative outcome after THA, and was associated with preoperative pain and disability.</p><p><strong>Conclusion: </strong>This study highlights the importance of systemic inflammation in osteoarthritis, and presents a possible path for better patient selection for THA in the future. Preoperative central neuroinflammation was associated with preoperative pain and disability, but not change in OHS after THA.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"741-749"},"PeriodicalIF":4.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11620800/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142784109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bone & Joint ResearchPub Date : 2024-12-05DOI: 10.1302/2046-3758.1312.BJR-2024-0048.R1
Jinyi Xing, Shuzhong Liu
{"title":"Application of loaded graphene oxide biomaterials in the repair and treatment of bone defects.","authors":"Jinyi Xing, Shuzhong Liu","doi":"10.1302/2046-3758.1312.BJR-2024-0048.R1","DOIUrl":"10.1302/2046-3758.1312.BJR-2024-0048.R1","url":null,"abstract":"<p><p>Addressing bone defects is a complex medical challenge that involves dealing with various skeletal conditions, including fractures, osteoporosis (OP), bone tumours, and bone infection defects. Despite the availability of multiple conventional treatments for these skeletal conditions, numerous limitations and unresolved issues persist. As a solution, advancements in biomedical materials have recently resulted in novel therapeutic concepts. As an emerging biomaterial for bone defect treatment, graphene oxide (GO) in particular has gained substantial attention from researchers due to its potential applications and prospects. In other words, GO scaffolds have demonstrated remarkable potential for bone defect treatment. Furthermore, GO-loaded biomaterials can promote osteoblast adhesion, proliferation, and differentiation while stimulating bone matrix deposition and formation. Given their favourable biocompatibility and osteoinductive capabilities, these materials offer a novel therapeutic avenue for bone tissue regeneration and repair. This comprehensive review systematically outlines GO scaffolds' diverse roles and potential applications in bone defect treatment.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"725-740"},"PeriodicalIF":4.7,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11617066/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142779474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bone & Joint ResearchPub Date : 2024-12-04DOI: 10.1302/2046-3758.1312.BJR-2023-0217.R2
Shengxuan Cao, Yungu Chen, Yunchao Zhu, Shuyun Jiang, Yan Yu, Xu Wang, Chen Wang, Xin Ma
{"title":"Concomitant osteochondral lesion of the talus affects in vivo ankle kinetics in patients with chronic ankle instability.","authors":"Shengxuan Cao, Yungu Chen, Yunchao Zhu, Shuyun Jiang, Yan Yu, Xu Wang, Chen Wang, Xin Ma","doi":"10.1302/2046-3758.1312.BJR-2023-0217.R2","DOIUrl":"10.1302/2046-3758.1312.BJR-2023-0217.R2","url":null,"abstract":"<p><strong>Aims: </strong>This cross-sectional study aimed to investigate the in vivo ankle kinetic alterations in patients with concomitant chronic ankle instability (CAI) and osteochondral lesion of the talus (OLT), which may offer opportunities for clinician intervention in treatment and rehabilitation.</p><p><strong>Methods: </strong>A total of 16 subjects with CAI (eight without OLT and eight with OLT) and eight healthy subjects underwent gait analysis in a stair descent setting. Inverse dynamic analysis was applied to ground reaction forces and marker trajectories using the AnyBody Modeling System. One-dimensional statistical parametric mapping was performed to compare ankle joint reaction force and joint moment curve among groups.</p><p><strong>Results: </strong>The patients with OLT showed significantly increased dorsiflexion moment in the ankle joint compared with healthy subjects during 38.2% to 40.9% of the gait cycle, and increased eversion moment in the ankle joint compared with patients without OLT during 25.5% to 27.6% of the gait cycle. Compared with healthy subjects, the patients with OLT showed increased anterior force during 42% to 43% of the gait cycle, and maximal medial force (p = 0.005, ηp2 = 0.399).</p><p><strong>Conclusion: </strong>The patients with concomitant CAI and OLT exhibit increased dorsiflexion and eversion moment, as well as increased anterior and medial ankle joint reaction force during stair descent, compared with patients with CAI but without OLT and healthy subjects, respectively. Thus, a rehabilitative regimen targeting excessive ankle dorsiflexion and eversion moment may help to reduce ankle joint loading.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"716-724"},"PeriodicalIF":4.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11614499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bone & Joint ResearchPub Date : 2024-12-03DOI: 10.1302/2046-3758.1312.BJR-2024-0020.R1
Iwan G A Raza, Sarah J B Snelling, Jolet Y Mimpen
{"title":"Defining the extracellular matrix in non-cartilage soft-tissues in osteoarthritis: a systematic review.","authors":"Iwan G A Raza, Sarah J B Snelling, Jolet Y Mimpen","doi":"10.1302/2046-3758.1312.BJR-2024-0020.R1","DOIUrl":"10.1302/2046-3758.1312.BJR-2024-0020.R1","url":null,"abstract":"<p><strong>Aims: </strong>Extracellular matrix (ECM) is a critical determinant of tissue mechanobiology, yet remains poorly characterized in joint tissues beyond cartilage in osteoarthritis (OA). This review aimed to define the composition and architecture of non-cartilage soft joint tissue structural ECM in human OA, and to compare the changes observed in humans with those seen in animal models of the disease.</p><p><strong>Methods: </strong>A systematic search strategy, devised using relevant matrix, tissue, and disease nomenclature, was run through the MEDLINE, Embase, and Scopus databases. Demographic, clinical, and biological data were extracted from eligible studies. Bias analysis was performed.</p><p><strong>Results: </strong>A total of 161 studies were included, which covered capsule, ligaments, meniscus, skeletal muscle, synovium, and tendon in both humans and animals, and fat pad and intervertebral disc in humans only. These studies covered a wide variety of ECM features, including individual ECM components (i.e. collagens, proteoglycans, and glycoproteins), ECM architecture (i.e. collagen fibre organization and diameter), and viscoelastic properties (i.e. elastic and compressive modulus). Some ECM changes, notably calcification and the loss of collagen fibre organization, have been extensively studied across osteoarthritic tissues. However, most ECM features were only studied by one or a few papers in each tissue. When comparisons were possible, the results from animal experiments largely concurred with those from human studies, although some findings were contradictory.</p><p><strong>Conclusion: </strong>Changes in ECM composition and architecture occur throughout non-cartilage soft tissues in the osteoarthritic joint, but most of these remain poorly defined due to the low number of studies and lack of healthy comparator groups.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"703-715"},"PeriodicalIF":4.7,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11611391/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In vivo reduction of biofilm seeded on orthopaedic implants.","authors":"Enrique Cordero García-Galán, Marina Medel-Plaza, José J Pozo-Kreilinger, Héctor Sarnago, Óscar Lucía, Alicia Rico-Nieto, Jaime Esteban, Enrique Gomez-Barrena","doi":"10.1302/2046-3758.1312.BJR-2024-0111.R2","DOIUrl":"https://doi.org/10.1302/2046-3758.1312.BJR-2024-0111.R2","url":null,"abstract":"<p><strong>Aims: </strong>Electromagnetic induction heating has demonstrated in vitro antibacterial efficacy over biofilms on metallic biomaterials, although no in vivo studies have been published. Assessment of side effects, including thermal necrosis of adjacent tissue, would determine transferability into clinical practice. Our goal was to assess bone necrosis and antibacterial efficacy of induction heating on biofilm-infected implants in an in vivo setting.</p><p><strong>Methods: </strong>Titanium-aluminium-vanadium (Ti6Al4V) screws were implanted in medial condyle of New Zealand giant rabbit knee. Study intervention consisted of induction heating of the screw head up to 70°C for 3.5 minutes after implantation using a portable device. Both knees were implanted, and induction heating was applied unilaterally keeping contralateral knee as paired control. Sterile screws were implanted in six rabbits, while the other six received screws coated with <i>Staphylococcus aureus</i> biofilm. Sacrifice and sample collection were performed 24, 48, or 96 hours postoperatively. Retrieved screws were sonicated, and adhered bacteria were estimated via drop-plate. Width of bone necrosis in retrieved femora was assessed through microscopic examination. Analysis was performed using non-parametric tests with significance fixed at p ≤ 0.05.</p><p><strong>Results: </strong>The width of necrosis margin in induction heating-treated knees ranged from 0 to 650 μm in the sterile-screw group, and 0 to 517 μm in the biofilm-infected group. No significant differences were found between paired knees. In rabbits implanted with sterile screws, no bacteria were detected. In rabbits implanted with infected screws, a significant bacterial load reduction with median 0.75 Log10 colony-forming units/ml was observed (p = 0.016).</p><p><strong>Conclusion: </strong>Induction heating was not associated with any demonstrable thermal bone necrosis in our rabbit knee model, and might reduce bacterial load in <i>S. aureus</i> biofilms on Ti6Al4V implants.</p>","PeriodicalId":9074,"journal":{"name":"Bone & Joint Research","volume":"13 12","pages":"695-702"},"PeriodicalIF":4.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11608107/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}