Platelets最新文献

{"title":"Pre-activated lyophilized platelets show non-inferior hemostatic effect compared with fresh platelets in rabbits with traumatic bleeding and shock.","authors":"Chenglin Dai, Wenqiong Du, Na Kang, Haoyang Yang, Ting Tang, Yijun Jia, Can Chen, Zhaowen Zong","doi":"10.1080/09537104.2025.2542767","DOIUrl":"10.1080/09537104.2025.2542767","url":null,"abstract":"<p><strong>Background: </strong>A high activation level is a normal characteristic of lyophilized platelets (LPs); however, the effects of this activation level on the efficacy and safety of LPs after transfusion are debated.</p><p><strong>Objectives: </strong>We aimed to test the efficacy and safety of pre-activated LPs (PLPs) in rabbits with traumatic bleeding and shock.</p><p><strong>Methods: </strong>In vitro characteristics of PLPs, including activation level, aggregation, migration, and thromboelastography parameters, were evaluated. Limb soft tissue injury accompanied by seawater immersion and controlled hemorrhagic shock was induced in 50 rabbits, which were then divided into five groups: A (no resuscitation), B (resuscitation with Lactated Ringer's solution, LR), C (resuscitation with LR and fresh platelets), D (resuscitation with LR and LPs), and E (resuscitation with LR and PLPs pre-activated by thrombin). Blood loss, platelet count, blood urea nitrogen and lactic acid concentrations, and in vivo thromboelastography <i>R</i> value and maximum amplitude were recorded. Biotin-X-N-hydroxysuccinimide labeling and flow cytometry were used to measure the number of infused platelets left in circulation. Histology was used to assess whether aberrant thrombi were formed in the kidney, lung, or liver.</p><p><strong>Results: </strong>PLPs exhibited an increased P-selectin level, enhanced aggregation, and shortened <i>R</i> values, with no obvious changes in migration ability or maximum amplitude. PLPs transfusion had a non-inferior effect on all in vivo parameters compared with fresh platelet transfusion, and the circulation time of PLPs was much shorter than that of fresh platelets. No obvious thrombi were found.</p><p><strong>Conclusions: </strong>PLPs transfusion demonstrated non-inferior efficacy and safety compared with fresh platelet transfusion.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2542767"},"PeriodicalIF":2.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144795151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Talin autoinhibition is required for normal hemostasis.","authors":"Bhavya Venkatesh, Kalyan Golla, Felix Hong, Amanda Haage, Hugh Kim, Guy Tanentzapf","doi":"10.1080/09537104.2025.2555197","DOIUrl":"https://doi.org/10.1080/09537104.2025.2555197","url":null,"abstract":"<p><p>The integrin family of extracellular matrix (ECM) adhesion receptors plays a central role in platelet function, including adhesion and aggregation. In resting platelets, integrins exist in a low-affinity state for their ligands, and are activated upon ligand binding to the extracellular domain or binding of cytoplasmic proteins such as talin to the intracellular β-tail. Talin function is regulated through autoinhibition, which reduces its integrin-activating function. A point mutation that blocks talin autoinhibition, Tln1^E1770A, therefore increases integrin activation and disrupts cell migration in fibroblasts. Here, we show that talin autoinhibition also plays an important role during hemostasis. Tln1^E1770A mutant mice display defective hemostasis when examined using a tail bleeding assay. Furthermore, platelets isolated from Tln1^E1770A mice exhibit disrupted aggregation and delayed clot retraction, indicating a defect in integrin signaling. However, integrin activation was not increased in platelets with defective talin autoinhibition, suggesting a different role for talin in platelets, distinct from inside-out integrin signaling. Taken together, our data shows that talin autoinhibition is an important regulatory mechanism in platelets during hemostasis.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2555197"},"PeriodicalIF":2.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145016073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcriptomic and functional characterization of megakaryocytic-derived platelet-like particles: impaired aggregation and prominent anti-tumor effects.","authors":"Kaitlin Garofano, Vera Mariani, Kameron Rashid, Sumanun Suwunnakorn, Alfateh Sidahmed, Anelia Horvath, Sanjay B Maggirwar, Travis J O'Brien, Minoli A Perera, Michael Whalen, Norman H Lee","doi":"10.1080/09537104.2024.2449344","DOIUrl":"10.1080/09537104.2024.2449344","url":null,"abstract":"<p><p>Platelet-like particles (PLPs), derived from megakaryocytic cell lines MEG-01 and K-562, are widely used as a surrogate to study platelet formation and function. We demonstrate by RNA-Seq that PLPs are transcriptionally distinct from platelets. Expression of key genes in signaling pathways promoting platelet activation/aggregation, such as the PI3K/AKT, protein kinase A, phospholipase C, and α-adrenergic and GP6 receptor pathways, was missing or under-expressed in PLPs. Functionally, PLPs do not aggregate following epinephrine, collagen, or ADP stimulation. While PLPs aggregated in response to thrombin, they did not display enhanced expression of surface markers P-selectin and activated α_2bβ₃, in contrast to platelets. We have previously demonstrated that platelets physically couple to MDA-PCa-2b and RC77T/E prostate cancer (PCa) cells via specific ligand-receptor interactions, leading to platelet-stimulated cell invasiveness and apoptotic resistance, and reciprocal cell-induced platelet aggregation. In contrast, PLP interactions with PCa cells inhibited both cell invasion and apoptotic resistance while failing to promote PLP aggregation. Moreover, PLPs reduced platelet-PCa cell interactions and antagonized platelet-stimulated oncogenic effects in PCa cells. RNA-Seq analysis identified candidate ligand-transmembrane protein combinations involved in anti-tumorigenic signaling of PLPs to PCa cells. Antibody neutralization of the TIMP3-MMP15 and VEGFB-FGFR1 signaling axes reversed PLP-mediated anti-invasion and apoptotic sensitization, respectively. In summary, PLPs lack many transcriptomic, molecular and functional features of platelets and possess novel anti-tumorigenic properties. These findings indicate that PLPs may have a potential therapeutic role in targeting and disrupting the oncogenic signaling between platelets and cancer cells, offering a new avenue for anti-cancer strategies.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2449344"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11890189/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142984432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extracellular thiol isomerase ERp5 regulates integrin αIIbβ3 activation by inhibition of fibrinogen binding.","authors":"Kaifei Sun, Yaqiong Zhang, Aizhen Yang, Yuxin Zhang, Zhenzhen Zhao, Xiaofeng Yan, Yi Lu, Yue Han, Depei Wu, Freda Passam, Jingyu Zhang, Yi Wu","doi":"10.1080/09537104.2025.2455743","DOIUrl":"10.1080/09537104.2025.2455743","url":null,"abstract":"<p><p>Recent studies have shown that anti-ERp5 antibodies inhibit platelet activation and thrombus formation; Moreover, ERp5-deficient platelets exhibit enhanced platelet reactivity via regulation of endoplasmic reticulum (ER) stress. In this study, we used a new ERp5-knockout mouse model as well as recombinant ERp5 (rERp5) protein, to examine the role of ERp5 in platelet function and thrombosis. Although platelet-specific ERp5-deficient mice had decreased platelet count, the mice had shortened tail-bleeding times and enhanced platelet accumulation in FeCl₃-induced mesenteric artery injury, compared with wild-type mice. Using platelet-specific ERp5-deficient mice, we found that ERp5 deficiency increased platelet aggregation, granule secretion, and integrin αIIbβ3 activation. Wild-type recombinant ERp5 protein (rERp5-wt) and inactive mutant ERp5 protein (rERp5-mut) both inhibited human platelet aggregation and the binding of fibrinogen to human platelets, indicating that ERp5 protein interferes with the interaction between integrin αIIbβ3 and its ligand fibrinogen, and its enzymatic activity is not required for this process. Consistently, wild-type mice injected with rERp5-wt or rERp5-mut protein had prolonged tail-bleeding times. Our results provide important evidence that platelet ERp5 negatively regulates platelet activation and thrombus formation, via steric hindrance interfering with integrin αIIbβ3 ligation.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2455743"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143067537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Platelet parameters for distinguishing between inherited macrothrombocytopenia and acquired thrombocytopenia: a retrospective case-control study.","authors":"Wenlan Chen, Yajie Ding, Li Cai, Mei Xue, Abdul Rehman Arif, Heng Mei, Yadan Wang","doi":"10.1080/09537104.2025.2489025","DOIUrl":"https://doi.org/10.1080/09537104.2025.2489025","url":null,"abstract":"<p><p>Inherited macrothrombocytopenia (IMT) is characterized by increased platelet volume. Using platelet parameters, including platelet count, mean platelet volume (MPV), platelet-large cell ratio (P-LCR), and platelet distribution width, to differentiate IMT from acquired thrombocytopenia (AT) in the Chinese population is unclear. This study aimed to evaluate these parameters and determine optimal thresholds for early IMT identification. This single-center, retrospective case-control study included IMT patients from 1 January 2022 to 31 January 2024. Age- and sex-matched AT patients and healthy individuals were selected (1:3 ratio). Platelet parameters were compared using a one-way analysis of variance and the Kruskal-Wallis test. The ability of platelet parameters to identify IMT was assessed using the receiver operating characteristic curve, with the optimal threshold determined using the Youden index. This study included 13 IMT patients, 39 AT patients, and 39 controls. The MPV and P-LCR were significantly higher in IMT than in AT patients (<i>P</i> < 0.05) and strongly differentiated between groups. The area under the curve (95% confidence interval) for MPV and P-LCR were 0.865 (0.724-1.000) and 0.860 (0.719-1.000), respectively. The optimal MPV and P-LCR thresholds for IMT were 14.55 fL and 58%, respectively. The MPV was most important for distinguishing IMT from patients with thrombocytopenia.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2489025"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144041596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Megakaryocyte phenotyping in response to SARS-CoV-2 variants.","authors":"Marcin A Sowa, Michael Tuen, Florencia Schlamp, Yuhe Xia, Marie I Samanovic, Mark J Mulligan, Tessa J Barrett","doi":"10.1080/09537104.2025.2532459","DOIUrl":"10.1080/09537104.2025.2532459","url":null,"abstract":"<p><p>SARS-CoV-2 infection is associated with platelet hyperreactivity and increased rates of arterial and venous thrombosis. SARS-CoV-2 mutations have resulted in several variants with differences in transmissibility, infectivity, and patient outcomes. This study investigates the effects of the ancestral strain of SARS-CoV-2 (WA1) and two variants of concern, Delta and Omicron, on the human megakaryocyte (MK) phenotype and transcriptome. Human CD34⁺-derived MKs were incubated with WA1, Delta or Omicron SARS-CoV-2 variants for 24 hours. MK activation markers were measured under resting and thrombin-stimulated conditions. RNA-seq and cytokine release in response to the viruses were assessed. Plasma cytokines were measured in hospitalized COVID-19 patients. Treatment of MKs with WA1, Delta or Omicron variants of SARS-CoV-2 resulted in similar increases in classical activation markers. However, SARS-CoV-2 variants mediated distinct transcriptomic changes. Across variants, 60 genes overlapped, including <i>CXCL8</i>. Consistent with transcriptomic changes, SARS-CoV-2-incubated MKs secreted significantly elevated levels of IL-8. Among hospitalized COVID-19 patients, plasma IL-8 levels were highest in COVID-19 patients who subsequently experienced thrombotic events or died. In conclusion, WA1, Delta, and Omicron similarly induce classical MK activation responses while mediating distinct transcriptomic changes. Increased IL-8 levels may serve as a biomarker to inform platelet hyperreactivity and thrombotic events associated with COVID-19.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2532459"},"PeriodicalIF":2.6,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12347718/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144699344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulation of lipid metabolism: a new strategy for platelet storage.","authors":"Jieyun Shi, Wenting Wang, Jinmei Xu, Wen Yin","doi":"10.1080/09537104.2025.2465321","DOIUrl":"10.1080/09537104.2025.2465321","url":null,"abstract":"<p><p>Transfusions of platelets are often used as prophylaxis in patients with hematologic malignancies and as treatment for active bleeding. However, platelets are in short supply due to the fact that they could only be kept for 5-7 days in vitro and they lose some of their functionality as a result of platelet storage lesions. To address this issue, refrigeration, cryopreservation and platelet additive solutions have been researched to determine their abilities to extend platelet storage duration. However, refrigerated platelets are quickly cleared after transfusion, while platelets in platelet additive solutions still present issues such as platelets quality and the risk of allergic reactions. Recent studies showed that changes in lipid metabolites during platelet storage and inadequate of fatty acid metabolism may also limit platelet shelf life and function. In this review, we address the principles of lipid metabolism during platelet storage and discuss the strategies for effective platelet storage systems. The findings of this review highlight the role of lipid metabolism during platelet storage, providing insights into future research focused on extending the preservation period and function of platelet.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2465321"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immune-induced thrombocytopenia by pembrolizumab: case report and review of literature.","authors":"Nathan El-Ghazzi, Anna Monier, Antoine Italiano, Aude Besson, Eurydice Angeli","doi":"10.1080/09537104.2025.2487767","DOIUrl":"10.1080/09537104.2025.2487767","url":null,"abstract":"<p><p>Immune-checkpoint blockades (ICBs) are now used in early-stage diseases like triple-negative breast cancer (TNBC). While effective, they can cause severe toxicities. We report the first case of life-threatening immune thrombocytopenia (ITP) induced by pembrolizumab during neoadjuvant chemo-immunotherapy for early TNBC. A 42-year-old woman with early-stage TNBC developed grade 4 thrombocytopenia, diagnosed as ITP, after 107 days of pembrolizumab treatment. She required intensive care unit (ICU) admission and high-dose steroids, and intravenous immunoglobulin therapy, leading to a rapid recovery. ITP is a rare but potentially fatal complication of immunotherapy, with an incidence of less than 1% and a mortality rate of up to 20% in affected patients. Immediate recognition and steroid therapy are critical, as platelet transfusion is usually ineffective. Diagnosis is often delayed due to its similarity to chemotherapy-induced marrow toxicity. Immunotherapy-induced ITP generally contraindicates further use of the treatment. ITP, although uncommon, is a serious complication of immunotherapy requiring immediate intervention. The growing use of immunotherapy necessitates increased awareness of its potential toxicities among healthcare providers.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2487767"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of aspirin dosage on oxidative stress and platelet reactivity in patients undergoing coronary artery bypass grafting (APRICOT): randomized controlled trial.","authors":"Aleksandra Gąsecka, Rafał Kaczorowski, Katarzyna Pomykała, Tomasz Kucharski, Magdalena Gajewska, Dominika Siwik, Katarzyna Karoń, Maciej Małyszko, Jaromir Hunia, Jakub Michal Zimodro, Paweł Kowalczyk, Oliwia Zagrocka-Stendel, Małgorzata Dutkiewicz, Katarzyna Koziak, Ceren Eyileten, Marek Postuła, Mateusz Wondołkowski, Marcin Grabowski, Mariusz Kuśmierczyk, Radosław Wilimski","doi":"10.1080/09537104.2025.2457415","DOIUrl":"10.1080/09537104.2025.2457415","url":null,"abstract":"<p><p>Coronary artery bypass grafting (CABG) triggers oxidative stress and platelet activation. High acetylsalicylic acid (ASA) dose might mitigate the transient proinflammatory state. We compared the effect of three ASA dosages on post-CABG platelet reactivity, oxidative stress, and serum CD39 and CD73 levels. Thirty-six consecutive patients undergoing elective off-pump CABG, pre-treated with ASA 1 × 75 mg for ≥7 days, were randomized to continue the prior treatment regimen, switch to ASA 1 × 150 mg, or ASA 2 × 75 mg. Blood was collected on admission, 7 days, 1 month, and 3 months after CABG. Platelet reactivity was assessed using impedance aggregometry. Platelet oxidative stress was measured as platelet mitochondria extracellular oxygen consumption rate and oxidatively damaged whole-blood DNA cleavage. Serum CD39 and CD73 levels were determined using ELISA. Platelet reactivity and oxidative stress parameters were comparable in all groups. Patients treated with ASA 2 × 75 mg had higher CD39 levels at 7 days and 1 month (<i>p</i> = .049, <i>p</i> = .033), compared to the control group. ASA 2 × 75 mg was associated a beneficial effect on serum CD39 levels after off-pump CABG, without a significant effect on oxidative stress parameters.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"36 1","pages":"2457415"},"PeriodicalIF":2.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increased circulating platelet-derived extracellular vesicles in severe COVID-19 disease.","authors":"Tuukka Helin, Mari Palviainen, Marja Lemponen, Katariina Maaninka, Pia Siljander, Lotta Joutsi-Korhonen","doi":"10.1080/09537104.2024.2313362","DOIUrl":"10.1080/09537104.2024.2313362","url":null,"abstract":"<p><p>Coagulation disturbances are major contributors to COVID-19 pathogenicity, but limited data exist on the involvement of extracellular vesicles (EVs) and residual cells (RCs). Fifty hospitalized COVID-19 patients stratified by their D-dimer levels into high (>1.5 mg/L, <i>n</i> = 15) or low (≤1.5 mg/l, <i>n</i> = 35) and 10 healthy controls were assessed for medium-sized EVs (mEVs; 200-1000 nm) and large EVs/RCs (1000-4000 nm) by high sensitivity flow cytometry. EVs were analyzed for CD61, CD235a, CD45, and CD31, commonly used to detect platelets, red blood cells, leukocytes or endothelial cells, respectively, whilst phosphatidyl serine EVs/RCs were detected by lactadherin-binding implicating procoagulant catalytic surface. Small EV detection (sEVs; 50-200 nm) and CD41a (platelet integrin) colocalization with general EV markers CD9, CD63, and CD81 were performed by single particle interferometric reflectance imaging sensor. Patients with increased D-dimer exhibited the highest number of RCs and sEVs irrespective of cell origin (<i>p</i> < .05). Platelet activation, reflected by increased CD61+ and lactadherin+ mEV and RC levels, associated with coagulation disturbances. Patients with low D-dimer could be discriminated from controls by tetraspanin signatures of the CD41a+ sEVs, suggesting the changes in the circulating platelet sEV subpopulations may offer added prognostic value during COVID progression.</p>","PeriodicalId":20268,"journal":{"name":"Platelets","volume":"35 1","pages":"2313362"},"PeriodicalIF":3.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139913275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}