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Hydrographic Characteristics and Oceanic Heat Flux in the Upper Arctic Ocean over the Alpha Ridge Observed by the DTOP Platform in 2018 and 2021

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Journal of Ocean University of China 2024年第2期23卷 304-316页

作者： wang yongjun LI Tao College of Oceanic and Atmospheric Sciences Ocean University of ChinaQingdao 266100China Frontier Science Center for Deep Ocean Multispheres and Earth System(FDOMES) and Physical Oceanography Laboratory Ocean University of ChinaQingdao 266100China Laoshan Laboratory Qingdao 266237China

In 2018 and 2021,the Drift-Towing Ocean Profilers(DTOP)provided extensive temperature and salinity data on the upper 120m ocean through their drifts over the Alpha Ridge north of the Canada Basin.The thickness and temperature maximum of Alaska Coastal Water(ACW)ranged from 20m to 40m and-1.5℃to-0.8℃,respectively,and the salinity generally maintained from 30.2 to 32.5.Comparison with World Ocean Atlas 2018’s climatology manifested a 40m-thick and warm ACW roughly ex-ceeding the temperature maximum by 0.4–0.5℃in June–August 2021.This anomalously warm ACW was highly related to the ex-pansion of the Beaufort Gyre in the negative Arctic Oscillation phase.During summer,the under-ice oceanic heat flux F_(w)^(OHF)was elevated,with a maximum value of above 25Wm^(-2).F_(w)^(OHF)was typically low in the freezing season,with an average value of 1.2Wm^(-2).The estimates of upward heat flux contributed by ACW to the sea ice bottom F_(w)^(OHF)were in the range of 3–4Wm^(-2)in June–August 2021,when ACW contained a heat content of more than 80MJm^(-2).The heat loss over this period was driven by a weak stratification upon the ACW layer associated with a surface mixed layer(SML)approaching the ACW core.After autumn,F_(w)^(OHF)was reduced(<2 Wm^(-2))except during rare events when it elevated F_(w)^(OHF)slightly.In addition,the intensive and widespread Ekman suction,which created a violent upwelling north of the Canada Basin,was largely responsible for the substantial cooling and thinning of the ACW layer in the summer of 2021.

关键词： Arctic Ocean oceanic heat flux Alaska Coastal Water Alpha Ridge

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Polyphyllin Ⅰ enhances tumor necrosis factor-related apoptosis-inducing ligand-induced inhibition of human osteosarcoma cell growth via downregulating the Wnt/β-catenin pathway

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Journal of Traditional Chinese Medicine 2024年第2期44卷 251-259页

作者： CHANG Junli ZHAO Fulai SUN Xingyuan MA Xiaoping ZHAO Peng ZHOU Chujie SHI Binhao GU Wenchao wang yongjun YANG Yanping Spine Disease Institute Longhua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200032China Department of Diagnostic and Interventional Radiology University of TsukubaIbaraki 315-0114Japan

OBJECTIVE:To investigate the synergistic effects of polyphyllin Ⅰ(PPⅠ)combined with tumor necrosis factorrelated apoptosis-inducing ligand(TRAIL)on the growth of osteosarcoma cells through downregulating the Wnt/β-catenin signaling pathway.METHODS:Cell viability,apoptosis and cell cycle distribution were examined using cell counting kit-8 and flow cytometry assays.The morphology of cancer cells was observed with inverted phase contrast microscope.The migration and invasion abilities were examined by xCELLigence real time cell analysis DP system and transwell assays.The expressions of poly(adenosine diphosphate-ribose)polymerase,C-Myc,Cyclin B1,cyclin-dependent kinases 1,N-cadherin,Vimentin,Active-β-catenin,β-catenin,p-glycogen synthase kinase 3β(GSK-3β)and GSK-3βwere determined by Western blotting assay.RESULTS:PPⅠ sensitized TRAIL-induced decrease of viability,migration and invasion,as well as increase of apoptosis and cell cycle arrest of MG-63 and U-2 OS osteosarcoma cells.The synergistic effect of PPⅠwith TRAIL in inhibiting the growth of osteosarcoma cells was at least partially realized through the inactivation of Wnt/β-catenin signaling pathway.CONCLUSION:The combination of PPⅠ and TRAIL is potentially a novel treatment strategy of osteosarcoma.

关键词： osteosarcoma tumor necrosis factor-related apoptosis-inducing ligand Wnt signaling pathway beta-catenin polyphyllinⅠ

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Association of DNA methylation/demethylation with the functional outcome of stroke in a hyperinflammatory state

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Neural Regeneration Research 2024年第10期19卷 2229-2239页

作者： Yubo wang Ling Zhang Tianjie Lyu Lu Cui Shunying Zhao Xuechun wang Meng wang yongjun wang Zixiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina

Inflammation is closely related to stroke prognosis, and high inflammation status leads to poor functional outcome in stroke. DNA methylation is involved in the pathogenesis and prognosis of stroke. However, the effect of DNA methylation on stroke at high levels of inflammation is unclear. In this study, we constructed a hyperinflammatory cerebral ischemia mouse model and investigated the effect of hypomethylation and hypermethylation on the functional outcome. We constructed a mouse model of transient middle cerebral artery occlusion and treated the mice with lipopolysaccharide to induce a hyperinflammatory state. To investigate the effect of DNA methylation on stroke, we used small molecule inhibitors to restrain the function of key DNA methylation and demethylation enzymes. 2,3,5-Triphenyltetrazolium chloride staining, neurological function scores, neurobehavioral tests, enzyme-linked immunosorbent assay, quantitative reverse transcription PCR and western blot assay were used to evaluate the effects after stroke in mice. We assessed changes in the global methylation status by measuring DNA 5-mc and DNA 5-hmc levels in peripheral blood after the use of the inhibitor. In the group treated with the DNA methylation inhibitor, brain tissue 2,3,5-triphenyltetrazolium chloride staining showed an increase in infarct volume, which was accompanied by a decrease in neurological scores and worsening of neurobehavioral performance. The levels of inflammatory factors interleukin 6 and interleukin-1 beta in ischemic brain tissue and plasma were elevated, indicating increased inflammation. Related inflammatory pathway exploration showed significant overactivation of nuclear factor kappa B. These results suggested that inhibiting DNA methylation led to poor functional outcome in mice with high inflammation following stroke. Further, the effects were reversed by inhibition of DNA demethylation. Our findings suggest that DNA methylation regulates the inflammatory response in stroke and has an important role in the functional out

关键词： DNA demethylation DNA methylation DNMT3A functional outcome hyperinflammatory state interleukin neuroinflammation stroke TET2

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In patients who had a stroke or TIA, enlarged perivascular spaces in basal ganglia may cause future haemorrhagic strokes

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Stroke & Vascular Neurology 2024年第1期9卷 8-17,I0001-I0033页

作者： Yu Tian Mengxing wang Yuesong Pan Xia Meng Xingquan Zhao Liping Liu yongjun wang Yilong wang Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Chinese Institute for Brain Research BeijingChina National Center for Neurological Diseases BeijingChina Advanced Innovation Center for Human Brain Protection Capital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases BeijingChina

Introduction It remains unclear whether enlarged perivascular spaces(EPVS)predict poor clinical outcomes in patients with acute ischaemic stroke(AIS)or transient ischaemic attack(TIA).Method Data were obtained from the Third China National Stroke Registry study.We estimated EPVS in basal ganglia(BG)and centrum semiovale(CSO)using a semiquantified scale(Grade from 0 to 4).Using Cox and logistic regression analyses,the associations of EPVS with 3-month and 1-year adverse outcomes(including recurrent stroke,ischaemic stroke,haemorrhagic stroke,combined vascular event,disability and mortality)were explored.Sensitivity analyses of any association of cerebral small vessel disease at baseline and development of a small arterial occlusion(SAO)were conducted.Result Among 12603 patients with AIS/TIA,median age was 61.7±11.6 years,and 68.2%were men.After adjusting for all potential confounders,frequent-to-severe BG-EPVS was associated with a decreased risk of recurrent ischaemic stroke(HR 0.71,95%CI 0.55 to 0.92,p=0.01)but an increased risk of haemorrhagic stroke(HR 1.99,95%CI 1.11 to 3.58,p=0.02)at 1 year after AIS/TIA,compared with none-to-mild BG-EPVS.Patients with frequent-to-severe CSO-EPVS had a decreased risk of disability(OR 0.76,95%CI 0.62 to 0.92,p=0.004)and all-cause death(HR 0.55,95%CI 0.31 to 0.98,p=0.04)within 3-month but not 1-year follow-ups,compared with those with none-to-mild BG-EPVS.Sensitivity analyses showed that both BG-EPVS(HR 0.43,95%CI 0.21 to 0.87,p=0.02)and CSO-EPVS(HR 0.58,95%CI 0.35 to 0.95,p=0.03)were associated with a decreased risk of subsequent ischaemic stroke in patients with SAO during 1-year follow-up.Conclusion BG-EPVS increased the risk of haemorrhagic stroke in patients already with AIS/TIA within 1 year.Therefore,caution is recommended when selecting antithrombotic agents for secondary stroke prevention in patients with AIS/TIA and more severe BG-EPVS.

关键词： patients haemorrhagic prevention

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Tirofiban combined with Aspirin in the Treatment of Acute Penetrating Artery Territory Infarction (STRATEGY): protocol for a multicentre, randomised controlled trial

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Stroke & Vascular Neurology 2024年第1期9卷 75-81,I0047-I0052页

作者： Xiaoling Liao Shuo Feng Yicong wang Yuesong Pan Weiqi Chen Hui Qu Xingquan Zhao Liping Liu yongjun wang Yilong wang Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing TiantanHospitalCapital Medical UniversityBeijingChina Chinese Institute for Brain Research BeijingChina National Center for Neurological Diseases BeijingChina Advanced Innovation Center for Human Brain Protection Capital Medical UniversityBeijingChina Beijing Laboratory of Oral Health Capital Medical UniversityBeijingChina

Background Perforating artery territorial infarction(PAI)caused by branch atheromatous disease(BAD)is prone to recurrence and early progression without an effective and well-documented antiplatelet treatment regimen.Tirofiban,an adjunctive antiplatelet agent,has shown great potential to treat acute ischaemic stroke.However,whether the combination of tirofiban and aspirin can improve the prognosis of PAI remains unclear.Aim To explore an effective and safe antiplatelet regimen for reducing the risk of recurrence and early neurological deterioration(END)in PAI caused by BAD by comparing the tirofiban and aspirin combination with placebo and aspirin combination.Methods Tirofiban combined with Aspirin in the Treatment of Acute Penetrating Artery Territory Infarction(STRATEGY)trial is an ongoing multicentre,randomised,placebo-controlled trial in China.Eligible patients shall be randomly assigned to receive standard aspirin with tirofiban or placebo on the first day and standard aspirin from days 2 to 90.The primary endpoint is a new stroke or END within 90 days.The primary safety endpoint is severe or moderate bleeding within 90 days.Discussion The STRATEGY trial will assess whether tirofiban combined with aspirin is effective and safe in preventing recurrence and END in patients with PAI.Trial registration number NCT05310968.

关键词： Aspirin regimen centre

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A growth-regulating factor 7(GRF7)-mediated gene regulatory network promotes leaf growth and expansion in sugarcane

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The Crop Journal 2024年第2期12卷 422-431页

作者： Qiaoyu wang Yihan Li Dadong Lin Xiaoxi Feng yongjun wang Tianyou wang Hongyan Ding Jisen Zhang State Key Lab for Conservation and Utilization of Subtropical AgroBiological Resources and Guangxi Key Lab for Saccharum Biology Guangxi UniversityNanning 530005GuangxiChina Center for Genomics and Biotechnology/Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology/Key Laboratory of Saccharum Biology and Genetic Breeding/National Engineering Research Center for Saccharum Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina

Knowledge of the function of growth-regulating factors(GRFs)in sugarcane(Saccharum officinarum and S.spontaneum)growth and development could assist breeders in selecting desirable plant architectures.However,limited information about GRFs is available in Saccharum due to their polyploidy.In this study,22 GRFs were identified in the two species and their conserved domains,gene structures,chromosome location,and synteny were characterized.GRF7 expression varied among tissues and responded to diurnal rhythm.SsGRF7-YFP was localized preferentially in the nucleus and appears to act as a transcriptional cofactor.SsGRF7 positively regulated the size and length of rice leaves,possibly by regulating cell size and plant hormones.Of seven potential transcription factors binding to the SsGRF7 promoter in S.spontaneum,four showed positive expression patterns,and two showed negative expression patterns relative to SsGRF7.

关键词： Expression analysis Growth-regulating factor Leaf development Sugarcane Transcription factors

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Mechanism of inflammatory response and therapeutic effects of stem cells in ischemic stroke:current evidence and future perspectives

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Neural Regeneration Research 2025年第1期20卷 67-81页

作者： Yubo wang Tingli Yuan Tianjie Lyu Ling Zhang Meng wang Zhiying He yongjun wang Zixiao Li Vascular Neurology Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Shanghai Engineering Research Center of Stem Cells Translational Medicine ShanghaiChina National Center for Healthcare Quality Management in Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Institute for Regenerative Medicine Shanghai East HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghaiChina Chinese Institute for Brain Research BeijingChina Research Unit of Artificial Intelligence in Cerebrovascular Disease Chinese Academy of Medical SciencesBeijingChina Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases BeijingChina

Ischemic stroke is a leading cause of death and disability worldwide,with an increasing trend and tendency for onset at a younger age.China,in particular,bears a high burden of stroke cases.In recent years,the inflammatory response after stroke has become a research hotspot:understanding the role of inflammatory response in tissue damage and repair following ischemic stroke is an important direction for its treatment.This review summarizes several major cells involved in the inflammatory response following ischemic stroke,including microglia,neutrophils,monocytes,lymphocytes,and astrocytes.Additionally,we have also highlighted the recent progress in various treatments for ischemic stroke,particularly in the field of stem cell therapy.Overall,understanding the complex interactions between inflammation and ischemic stroke can provide valuable insights for developing treatment strategies and improving patient outcomes.Stem cell therapy may potentially become an important component of ischemic stroke treatment.

关键词： cell therapy immune cell inflammatory ischemic stroke stem cell

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Huangqi Guizhi Wuwu Decoction suppresses inflammation and bone destruction in collagen-induced arthritis mice

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Chinese Herbal Medicines 2024年第2期16卷 274-281页

作者： Jiamin Bao Yongjia Song Minghui Hang Hao Xu Qiang Li Pengyu wang Tao Chen Mengxiong Xia Qi Shi yongjun wang Xiaoyun wang Qianqian Liang School of Rehabilitation Science Shanghai University of Traditional Chinese MedicineShanghai 201203China Longhua Hospital Shanghai University of Traditional Chinese MedicineShanghai 200032China Spine Institute Shanghai University of Traditional Chinese MedicineShanghai 200032China Key Laboratory of Theory and Therapy of Muscles and Bones Ministry of EducationShanghai University of Traditional Chinese MedicineShanghai 201203China Shanghai Research Institute of Acupuncture and Meridian Shanghai University of Traditional Chinese MedicineShanghai 200032China

Objective: Rheumatoid arthritis(RA) is a chronic inflammatory and destructive arthritis, characterized by inflammatory infiltration and bone destruction. Huangqi Guizhi Wuwu Decoction(HGWD) is traditional Chinese medicine, which has been applied in the treatment of RA in clinical. The aim of this study was to investigate the therapeutic effect of HGWD on collagen-induced arthritis(CIA) mouse model.Methods: DBA/1J female mice were used to establish the collagen-induced arthritis(CIA) model. HGWD was administered intragastrically once a day for four weeks starting on the 22nd day after the first immunization. The body weight, hind paw thickness and clinical score were measured every five days. Gait analysis, histopathological staining, enzyme-linked immunosorbent assay(ELISA), ultrasound imaging and micro-computed tomography imaging were performed to determine the effects of HGWD treatment on inflammation and bone structure in this model. Moreover, Real-time PCR and Western blot analysis were used to detect inflammatory factors m RNA and protein levels after HGWD intervention in RAW264.7 cells.Results: HGWD attenuated symptoms of arthritis, suppressed inflammatory synovium area and the serum levels of inflammatory factors, inhibited joint space enlargement in the knee and ankle joints,reduced numbers of osteoclasts, protected bone destruction, as well as improved motor function.HGWD decreased the expression of m RNA for inflammatory factors and the protein expression levels of p-NF-ΚB and IL-17.Conclusion: These results suggested that HGWD suppresses inflammation, attenuates bone erosion and maintains motor function in collagen-induced arthritis mice.

关键词： bone destruction collagen-induced arthritis Huangqi Guizhi Wuwu Decoction inflammation rheumatoid arthritis

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Balloon Angioplasty for Symptomatic Intracranial Artery Stenosis (BASIS): protocol of a prospective, multicentre, randomised, controlled trial

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Stroke & Vascular Neurology 2024年第1期9卷 66-74页

作者： Xuan Sun Ming Yang Dapeng Sun Guangge Peng Yiming Deng Xingquan Zhao Liping Liu Ning Ma Feng Gao Dapeng Mo Wengui Yu yongjun wang Yilong wang Zhongrong Miao Department of Interventional Neuroradiology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Neurology Beijing Luhe HospitalCapital Medical UniversityBeijingChina Department of Neurology Comprehensive Stroke&Cerebrovascular CenterUniversity of California IrvineIrvineCaliforniaUSA Chinese Institute for Brain Research BeijingChina National Center for Neurological Diseases BeijingChina Advanced Innovation Center for Human Brain Protection Capital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases BeijingChina Beijing Laboratory of Oral Health Capital Medical UniversityBeijingChina

Background The superiority of balloon angioplasty plus aggressive medical management(AMM)to AMM alone for symptomatic intracranial artery stenosis(sICAS)on efficacy and safety profiles still lacks evidence from randomised controlled trials(RCTs).Aim To demonstrate the design of an RCT on balloon angioplasty plus AMM for sICAS.Design Balloon Angioplasty for Symptomatic Intracranial Artery Stenosis(BASIS)trial is a multicentre,prospective,randomised,open-label,blinded end-point trial to investigate whether balloon angioplasty plus AMM could improve clinical outcome compared with AMM alone in patients with sICAS.Patients eligible in BASIS were 35–80 years old,with a recent transient ischaemic attack within the past 90 days or ischaemic stroke between 14 days and 90 days prior to enrolment due to severe atherosclerotic stenosis(70%–99%)of a major intracranial artery.The eligible patients were randomly assigned to receive balloon angioplasty plus AMM or AMM alone at a 1:1 ratio.Both groups will receive identical AMM,including standard dual antiplatelet therapy for 90 days followed by long-term single antiplatelet therapy,intensive risk factor management and life-style modification.All participants will be followed up for 3years.Study outcomes Stroke or death in the next 30 days after enrolment or after balloon angioplasty procedure of the qualifying lesion during follow-up,or any ischaemic stroke or revascularisation from the qualifying artery after 30 days but before 12 months of enrolment,is the primary outcome.Discussion BASIS trail is the first RCT to compare the efficacy and safety of balloon angioplasty plus AMM to AMM alone in sICAS patients,which may provide an alternative perspective for treating sICAS.Trial registration number NCT03703635;https://www.***.gov.

关键词： balloon prospective centre

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Rationale and design of Tenecteplase Reperfusion Therapy in Acute Ischaemic Cerebrovascular Events III (TRACE III): a randomised, phase III, open- label, controlled trial

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Stroke & Vascular Neurology 2024年第1期9卷 82-89页

作者： Yunyun Xiong Bruce C V Campbell Marc Fisher Lee H Schwamm Mark Parsons Hao Li Yuesong Pan Xia Meng Xingquan Zhao yongjun wang Neurology Beijing Tiantan HospitalBeijingChina China National Clinical Research Center for Neurological Diseases BeijingChina Department of Medicine and Neurology The University of MelbourneMelbourneVictoriaAustralia Neurology Beth Israel Deaconess Medical CenterBostonMassachusettsUSA Department of Neurology and Comprehensive Stroke Center Massachusetts General HospitalBostonMassachusettsUSA Department of Neurology University of New South Wales South Western Sydney Clinical SchoolLiverpoolNew South WalesAustralia

Background and purpose Recombinant human TNK tissue-type plasminogen activator(rhTNK-tPA)was not inferior to alteplase for ischaemic stroke within 4.5hours.Our study aimed to investigate the efficacy and safety of rhTNK-tPA in patients who had an ischaemic stroke due to large vessel occlusion(LVO)of anterior circulation beyond 4.5hours.Methods and design Tenecteplase Reperfusion Therapy in Acute Ischaemic Cerebrovascular Events-III(TRACE III)is a multicentre,prospective,randomised,open-label,blind endpoint,controlled clinical trial.Patients who had an ischaemic stroke due to anterior circulation LVO(internal carotid artery,middle cerebral artery M1 and M2 segments)within 4.5–24hours from last known well(including wake-up stroke and no witness stroke)and with salvageable tissue(ischaemic core volume6s at 24 hours and NIHSS score change from baseline at 7days.Safety outcomes are symptomatic intracerebral haemorrhage within 36 hours and mortality at 90 days.Discussion TRACE III will provide evidence for the efficacy and safety of rhTNK-tPA in patients who had an ischaemic strokes due to anterior circulation LVO beyond 4.5hours.Trial registration number NCT05141305.

关键词： Therapy random Rational

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