单细胞测序技术在骨关节相关疾病中应用的研究进展

骨关节相关疾病种类较多,主要包括炎症类(如类风湿性关节炎)、外伤或生理性疾病(如骨质疏松)等,发病机制较复杂。单细胞测序主要包括转录组测序、表观基因组测序及全基因组测序,能够较精细、准确地反映组织的状态。因此,单细胞测序技术在发现和解析骨关节相关疾病发病机制方面有广阔的应用前景。文章针对单细胞测序技术在关节软骨细胞、髓核细胞、滑膜细胞和巨噬细胞中的应用进行综述,为今后骨关节疾病发病机制的临床研究和基础实验提供理论依据。

The emerging role of nitric oxide in the synaptic dysfunction of vascular dementia

With an increase in global aging,the number of people affected by cerebrovascular diseases is also increasing,and the incidence of vascular dementia-closely related to cerebrovascular risk-is increasing at an epidemic rate.However,few therapeutic options exist that can markedly improve the cognitive impairment and prognosis of vascular dementia patients.Similarly in Alzheimer’s disease and other neurological disorders,synaptic dysfunction is recognized as the main reason for cognitive decline.Nitric oxide is one of the ubiquitous gaseous cellular messengers involved in multiple physiological and pathological processes of the central nervous system.Recently,nitric oxide has been implicated in regulating synaptic plasticity and plays an important role in the pathogenesis of vascular dementia.This review introduces in detail the emerging role of nitric oxide in physiological and pathological states of vascular dementia and summarizes the diverse effects of nitric oxide on different aspects of synaptic dysfunction,neuroinflammation,oxidative stress,and blood-brain barrier dysfunction that underlie the progress of vascular dementia.Additionally,we propose that targeting the nitric oxide-sGC-cGMP pathway using certain specific approaches may provide a novel therapeutic strategy for vascular dementia.

Hydraulic fracturing behaviors of shale under coupled stress and temperature conditions simulating different burial depths

Fracture propagation in shale under in situ conditions is a critical but poorly understood mechanical process in hydraulic fracturing for deep shale gas reservoirs. To address this, hydraulic fracturing experiments were conducted on hollow double-wing crack specimens of the Longmaxi shale under conditions simulating the ground surface(confining pressure σ_(cp)=0, room temperature(Tr)) and at depths of 1600 m(σ_(cp)=40 MPa, Ti=70 ℃) and 3300 m(σ_(cp)=80 MPa, high temperature Ti=110 ℃) in the study area.High in situ stress was found to significantly increase fracture toughness through constrained microcracking and particle frictional bridging mechanisms. Increasing the temperature enhances rather than weakens the fracture resistance because it increases the grain debonding length, which dissipates more plastic energy and enlarges grains to close microdefects and generate compressive stress to inhibit microcracking. Interestingly, the fracture toughness anisotropy in the shale was found to be nearly constant across burial depths, despite reported variations with increasing confining pressure. Heated water was not found to be as important as the in situ environment in influencing shale fracture. These findings emphasize the need to test the fracture toughness of deep shales under coupled in situ stress and temperature conditions rather than focusing on either in situ stress or temperature alone.

Mechanical behaviors and rupture processes of a typical granitic stratum

Granitic veins(GVs)have a significant influence on the mechanical responses of tunnels excavated in granitic strata.Distinguishing the mechanical properties of host granites(HGs),GVs and vein-granite interfaces(VGIs)is critical.For this,this paper analyzed the mechanical behaviors and rupture processes of typical HG,GV,and VGI samples under uniaxial compression condition.For the rocks studied,although the linear axial stress‒strain relation can be identified and the deformation modulus can be determined,the transverse deformation developed nonlinearly with axial stress.As a result,the instantaneous Poisson’s ratio increases continuously and may even exceed 0.5,making it extremely difficult to accurately determine the Poisson’s ratio.In addition,the studied GV samples were found to be significantly brittle,indicating that large-scale GVs cannot be ignored when assessing rockburst hazards in granitic strata with brittle GVs.In terms of the rupture process,the HG and GV samples were gradually damaged by the formation of small-scale cracks and then ruptured by large cracks formed from smallscale cracks,whereas the VGI samples ruptured along large cracks with significant energy release.By examining the characteristic stress thresholds of these three granites,it is noted that the crack closure stress scc exceeds both the crack initiation stress sci and the crack damage stress scd for the HG and VGI samples.The transverse damage to a tested sample appears to be significantly greater than the axial damage,which is essentially related to the rock grain size and grain size distribution.

Rydberg-Induced Topological Solitons in Three-Dimensional Rotation Spin–Orbit-Coupled Bose–Einstein Condensates

We present a novel approach for generating stable three-dimensional(3D)spatiotemporal solitons(SSs)within a rotating Bose–Einstein condensate,incorporating spin–orbit coupling(SOC),a weakly anharmonic potential and cold Rydberg atoms.This intricate system facilitates the emergence of quasi-stable 3D SSs with topological charges|m|≤3 in two spinor components,potentially exhibiting diverse spatial configurations.Our findings reveal that the Rydberg long-range interaction,spin–orbit coupling,and rotational angular frequency exert significant influence on the domains of existence and stability of these solitons.Notably,the Rydberg interaction contributes to a reduction in the norm of topological solitons,while the SOC plays a key role in stabilizing the SSs with finite topological charges.This research of SSs exhibits potential applications in precision measurement,quantum information processing,and other advanced technologies.

Acalypha australis L.extract inhibits B16 melanoma cell metastasis through PI3K/AKT signaling pathway

Background:Melanoma is a deadly skin tumor resulting from the malignant transformation of melanocytes.It is highly malignant and invasive,with the highest mortality rate among skin cancers.Acalypha australis L.(AAL),a plant with dual medicinal and culinary purposes,is commonly regarded as an edible wild vegetable in southern China.Additionally,AAL has a long history of medicinal use in China,often employed for its hemostatic,anti-diarrheal,and anti-inflammatory properties.Modern pharmacology has demonstrated that AAL possesses functions such as weight loss,antimicrobial activity,antiviral effects,and treatment for ulcerative colitis.However,there is currently no research available regarding its effectiveness and mechanisms of action on melanoma.Methods:In this investigation,we used methyl thiazolyl tetrazolium assay to detect cell viability,transwell assay to detect cell migration and invasion ability,and Western blot assay to detect relevant signaling pathways.Results:The present study reveals that 2 mg/mL AAL effectively suppresses the metastasis of B16 cells,while simultaneously triggering the expression of key apoptosis-related proteins,including Bcl-2,Bax,and cleaved caspased 3.Subsequent investigations demonstrate that AAL exerts this inhibitory effect via the PI3K/AKT signal transduction pathway,as evidenced by the observed deficits in Ras,AKT,p-AKT,and PI3K expression levels.Conclusion:These findings indicated that AAL could be a valuable therapeutic option for reducing the metastatic potential of B16 melanoma cells.

Incidence trends and age distribution of colorectal cancer by subsite in Guangzhou,2000-2011

Introduction:Colorectal cancer(CRC) is the third most common cancer in China.The incidence of CRC has been increasing in recent years.The aim of this study was to explore the incidence trends and the age distribution of CRC by subsite in Guangzhou between 2000 and 2011.Methods:A total of 22,432 incident cases of CRC between 2000 and 2011 from Guangzhou Cancer Registry were identified.Crude incidence and age-standardized rates(ASRs),using the Segi’s world standard population,were calculated for CRC and CRC subsites.The incidence trend was analyzed and the annual percentage change(APC) in incidence was calculated by using JoinPoint software.Results:The crude incidence increased significantly from 23.4/10~5 in 2000 to 37.4/10~5 in 2011 for males and from20.9/10~5 to 30.5/10~5 for females.The ASRs of CRC incidence stabilized during the period of 2000-2011 for both males and females.The ages at the onset of CRC for both males and females during 2010-2011 were significantly higher compared with those during 2000-2002(males:f = 1.95,P = 0.05;females:f = 6.03,P < 0.01).For males aged50-64 years,the CRC incidence increased by 8.50%annually(P = 0.04) during 2000-2004 and by 1.68%annually(P = 0.03) during 2005-2011.For females aged 65 years and older,the CRC incidence increased by 5.77%annually(P = 0.03) during 2000-2004.There were no significant changes for the CRC incidences in males aged 49 and younger and 65 years and older and females aged 64 years and younger during 2000-2004,or for those in all females as well as males aged 49 years and younger and 65 years and older during 2005-2011.The percentage of colon cancer in all CRCs increased significantly for both males and females between the periods of 2000-2002 and 2010-2011.The ASRs of descending colon and sigmoid colon cancer incidences increased significantly for females during 2005-2011(APC,5.51%and 1.08%,respectively,both P < 0.05).Conclusions:The crude incidence of CRC increased significantly between 2000 and 2011 because of the aging,whereas the ASRs kept stable.The percentage of colon cancer in all CRCs increased significantly.Further surveillance,research,and intervention are needed to identify the causes of these changes and to reduce the incidence and mortality of CRC.

Willingness to pay for colorectal cancer screening in Guangzhou

AIM To measure the willingness to pay for colorectal cancer screening in Guangzhou, and to identify those factors associated with it. METHODS A face-to-face questionnaire survey for pre-screening population from free and non-free colonoscopy districts was used to collect information on demographic characteristics, health behaviours, the intention of the cancer screenings and willingness to pay for colorectal cancer screening. A total of 1243 participants who took part in the pre-screening for colorectal cancer in Guangzhou were collected in the study. Categorical data were compared using the χ~2 test to analyse significant differences. Non-conditional logistic regression and multi-class logistic regression were also performed for multivariate analysis and to estimate the odds ratios.RESULTS The percentage of participants willing to pay for colorectal cancer screening was 91.7%. "Unnecessary" was the dominant reason that participants gave for their unwillingness, accounting for 63.1%. Of those who were willing to pay, 29.2%, 20.7%, 14.8%, 13.0% and 22.4% of participants were willing to pay less than $100, $100-$199, $200-299, $300-$399 and more than $400, respectively. Non-logistic regression analysis showed that respondents who were male, had a high level of education, were from the family with more children/older to raise, and accepted colorectal cancer screening were willing to pay for this screening. Multi-class logistic regression analysis showed that respondents with higher annual household income per capita, from government and private enterprises, government agency/institution and peasants, and less family medical expenditure were willing to pay more.CONCLUSION Willingness to pay for colorectal cancer screening in Guangzhou is high, but the amount of willing to pay is not much.

eSOFA评分在脓毒症患者28、90天及1年预后评估中的作用

目的探讨电子序贯器官衰竭评分(simplified organ dysfunction criteria optimized for electronic health records,eSOFA)对急诊脓毒症患者28、90 d及1年预后的预测价值,并与序贯器官衰竭评分(sequential organ failure assessment,SOFA)、急性生理学与慢性健康状况Ⅱ评分(acute physiology and chronic health evaluationⅡ,APACHEⅡ)进行比较。方法连续纳入2018年12月1日至2021年1月31日中国康复研究中心急诊重症监护室收治的脓毒症患者。分别绘制eSOFA、SOFA和APACHEⅡ评分对患者28、90 d及1年预后的受试者工作特征(receiver operating characteristic,ROC)曲线,计算相应的曲线下面积(area under curve,AUC),并进行比较。根据eSOFA评分的截断值将患者分为eSOFA评分≤2分和eSOFA评分>2分两组,比较两组的一般临床特点。结果本研究最终纳入197例脓毒症患者,年龄为84(74~88)岁,其中男119例。纳入患者28、90 d及1年的病死率分别为38.6%(76/197)、51.8%(102/197)及58.9%(116/197)。eSOFA、SOFA和APACHEⅡ评分对脓毒症患者28、90 d及1年预后均具有预测能力,但三者差异无统计学意义(P>0.05),eSOFA评分对脓毒症患者1年死亡预测模型的拟和优度差,对1年预后预测效果不佳(P=0.01)。与eSOFA评分≤2分组相比,eSOFA评分>2分组患者死亡风险高(P<0.05),SOFA评分[分:5(4,7)vs.9(7,12)]和APACHEⅡ评分[分:23(18,27)vs.28(23,35)]更差,且更多患者发生急性肾损伤(acute kidney injury,AKI)(61.8%vs.83.6%)及接受血管活性药物(10.3%vs.59.1%)和机械通气(19.1%vs.50.8%)治疗。结论eSOFA、SOFA和APACHEⅡ评分均能有效评估脓毒症患者的中短期预后,优化患者早期治疗策略,但eSOFA评分简便易计算,更适合应用于急诊科。

临床药师参与1例左氧氟沙星致超敏反应的药学监护及文献分析

目的 分析左氧氟沙星致超敏反应的特点。方法 临床药师参与1例左氧氟沙星致超敏反应患者的治疗过程,同时参考相关标准判断左氧氟沙星与超敏反应的关联性;检索中国知网、维普网、万方数据、PubMed、Embase,收集左氧氟沙星致超敏反应的相关文献并进行分析。结果 临床药师针对患者发热、全身皮疹等症状,建议排查其既往用药史和过敏史,同时判断该超敏反应与左氧氟沙星的关联性为“可能”或“很可能”。临床医师根据临床药师的判断,给予患者对症治疗。该患者经治疗后好转。文献分析结果显示,纳入的31例患者中,男性23例,女性8例,50岁及以上18例;24例患者的潜伏期为用药后4 d及以内;不良反应主要为药物超敏反应综合征、固定性药疹、多形性红斑等;多数患者经停药和对症治疗后均好转。结论 超敏反应为左氧氟沙星较罕见的不良反应,多发生于用药后2.5 h~4 d,以中老年男性患者的发生风险较高。临床使用左氧氟沙星前应详细询问患者的药物过敏史,当其出现无明显诱因发热、皮疹时,应及时停药并对症处理,保证患者用药安全、有效。

Nonautonomous Breather and Rogue Wave in Spinor Bose–Einstein Condensates with Space-Time Modulated Potentials

To study controlled evolution of nonautonomous matter-wave breathers and rogue waves in spinor Bose–Einstein condensates with spatiotemporal modulation,we focus on a system of three coupled Gross–Pitaevskii equations with spacetime-dependent external potentials and temporally modulated gain-loss distributions.With different external potentials and gain-loss distributions,various solutions for controlled nonautonomous matterwave breathers and rogue waves are derived by the Darboux transformation method,such as breathers and rogue waves on arched and constant backgrounds which have the periodic and parabolic trajectories.Effects of the gain-loss distribution and linear potential on the breathers and rogue waves are studied.Nonautonomous two-breathers on the arched and constant backgrounds are also derived.

3D anisotropy in shear failure of a typical shale

It is inadequate to study the shear failure anisotropy of shale in only 2D space.Aiming at a 3D analysis,a series of direct shear tests was conducted on Longmaxi shale with three typical bedding orientations:arrester,divider and short-transverse orientations.During testing,acoustic emission(AE)and digital image correlation(DIC)techniques were simultaneously employed to monitor failure development,after testing,X-ray computed tomography(CT)scanning was adopted to acquire and reconstruct the fractures inside typical ruptured samples for more detailed analysis.The results indicated that the shear strength parameters exhibited 3D anisotropies and those of the arrester sample did not have equivalent shear strength parameters to the shale matrix.The maximum(minimum)shear strength and cohesion were obtained with the divider(short-transverse)orientation,and the internal friction angle reached its maximum(minimum)with the divider(arrester)orientation.Combining the AE,DIC and CT techniques,four characteristic stress levels that can capture the progressive shear failure process of shale rocks were identified,and the onset and accelerated development of shear damage-induced dilation were observed at the crack initiation and coalesce stress thresholds,respectively.During the crack coalescence stage,the dominated microcracking mechanism transferred from tensile-mode to shear-mode.For the arrester and divider orientations,more tensile-mode AE events were generated due to the microcracking along the vertical beddings.Compared with the divider samples,a more complex fracture network with a larger fracture area and volume was obtained in the arrester samples,whose strengths were smaller.

Two-Dimensional Gap Solitons in Parity-Time Symmetry Moiré Optical Lattices with Rydberg–Rydberg Interaction

Realizing single light solitons that are stable in high dimensions is a long-standing goal in research of nonlinear optical physics.Here,we address a scheme to generate stable two-dimensional solitons in a cold Rydberg atomic system with a parity-time(PT) symmetric moiré optical lattice.We uncover the formation,properties,and their dynamics of fundamental and two-pole gap solitons as well as vortical ones.The PT symmetry,lattice strength,and the degrees of local and nonlocal nonlinearity are tunable and can be used to control solitons.The stability regions of these solitons are evaluated in two numerical ways:linear-stability analysis and time evolutions with perturbations.Our results provide an insightful understanding of solitons physics in combined versatile platforms of PT-symmetric systems and Rydberg–Rydberg interaction in cold gases.

Femtosecond Fiber Laser Based on BiSbTeSe_(2)Quaternary Material Saturable Absorber

Topological insulator materials,including Bi_(2)Te_(3),Sb_(2)Te_(3),Sb_(2)Te_(3),and Bi_(2)Se_(3),have attracted some attention due to their narrow band gaps,high carrier mobility,wide spectral absorption ranges and other characteristics.We report a new multi-compound topological insulator material BiSbTeSe_(2) that,compared with the traditional topological insulator composed of two elements,can integrate the physical advantages of each element,helpful to build an experimental platform with rich physical properties.The nonlinear optical characteristics of the quaternary material BiSbTeSe_(2) is obtained in the erbium-doped fiber laser.Using the BiSbTeSe_(2) as a saturable absorber material,the passive Q-switched and mode-locked fiber lasers are achieved.The pulse duration and signal-to-noise ratio(SNR)of the Q-switched fiber laser are 854 ns and 70 dB,respectively.Meanwhile,the pulse duration and SNR of the mode-locked fiber laser are 259 fs and 87.75 dB,respectively.This work proves that the BiSbTeSe_(2) has a considerable application prospect as a saturable absorber in fiber lasers,and provides a new reference for selection of high-performance saturable absorber materials.

甲巯咪唑与丙硫氧嘧啶对甲状腺功能亢进患者肝功能影响的系统评价

目的系统评价甲巯咪唑与丙硫氧嘧啶对甲状腺功能亢进(甲亢)患者肝功能的影响。方法计算机检索CNKI、VIP、WANFANG、CBM、PUBMED、COCHRANELIBRARY、EMBASE、MEDLINE等中英文数据库,筛选比较甲巯咪唑与丙硫氧嘧啶对甲亢患者肝功能影响的随机对照试验(RCTs),检索时间为建库起至2017年10月。对纳入的文献进行资料提取和质量评价,并采用Revman5.3.5版软件进行Meta分析。结果共纳入28项RCT,甲亢患者3181例。Meta分析结果显示,丙硫氧嘧啶组肝损伤发生率高于甲巯咪唑组[RR=2.73,95%CI(2.23,3.34),P<0.00001]。且治疗前后丙硫氧嘧啶所致丙氨酸氨基转移酶(ALT)变化值、天冬氨酸氨基转移酶(AST)变化值、碱性磷酸酶(ALP)变化值、总胆红素(T-BiL)变化值均高于甲巯咪唑组[SMD=0.68,95%CI(0.46,0.90),P<0.00001;SMD=0.38,95%CI(0.17,0.59),P=0.0005;SMD=0.47,95%CI(0.23,0.72),P=0.0002;SMD=0.70,95%CI(0.45,0.95),P<0.00001],均差异有统计学意义。结论甲亢患者应用丙硫氧嘧啶导致肝损伤的风险高于应用甲巯咪唑,甲亢伴肝功能异常的患者选用甲状腺治疗药物时尤需谨慎。

成纤维细胞生长因子-21在子痫前期孕妇胎盘组织中的表达及意义

目的探讨成纤维细胞生长因子-21(FGF-21)在子痫前期孕妇胎盘组织中的表达及其与临床生化指标的相关性。方法采用免疫组织化学SP法、Western blotting、实时荧光定量聚合酶链反应(qRT-PCR)检测子痫前期组(57例)、妊娠期高血压组(60例)、对照组(60例)孕妇胎盘中FGF-21蛋白及mRNA的表达。结果 3组收缩压、舒张压、甘油三酯、尿酸、高密度脂蛋白(HDL)、分娩时BMI、胆固醇、低密度脂蛋白(LDL)、载脂蛋白B(ApoB)、载脂蛋白A1(ApoA1)、肌酐、妊娠时间比较,差异有统计学意义(P<0.05);3组年龄、尿素氮比较,差异无统计学意义(P>0.05)。免疫组织化学SP法提示FGF-21主要表达于胎盘组织滋养细胞的细胞质中,子痫前期组和妊娠期高血压组FGF-21蛋白阳性表达率、FGF-21蛋白表达量及FGF-21mRNA表达量高于对照组(P<0.05),子痫前期组与妊娠期高血压组比较,差异无统计学意义(P>0.05)。相关性分析表明子痫前期组FGF-21蛋白表达量与舒张压、甘油三酯、LDL呈正相关;妊娠期高血压组FGF-21蛋白表达量与甘油三酯、LDL呈正相关。结论 FGF-21可能通过脂代谢参与子痫前期的发病。

老年高血压患者口服一线降血压药物利用分析:全国多中心研究

目的分析2017年全国8个城市老年高血压患者5类一线降血压药物的使用特征,为老年患者合理使用降血压药物提供参考数据。方法基于2017年《医院处方分析合作项目》随机抽取的处方数据,采用药物利用分析方法,对各类降血压药物处方量前5位的药品进行处方数、药品金额和处方日剂量分析。结果共抽取8个城市101家医院处方904296张。男女比例为1.01,中位年龄76岁。钙通道阻滞药(CCB)、β受体阻断药(β-B)和血管紧张素Ⅱ受体拮抗药(ARB)是处方量前3位的降血压药。各类处方量最大的品种(构成比)依次为:氨氯地平(15.85%)、美托洛尔(14.60%)、缬沙坦(6.97%)、螺内酯(3.69%)和培哚普利(2.06%)。中位药品金额最高的品种依次为:氯沙坦(139.16元)、硝苯地平(107.80元)、阿罗洛尔(104.40元)、培哚普利(97.80元)和托拉塞米(36.40元)。血管紧张素转化酶抑制药(ACEI)、ARB和CCB类药物处方日剂量/限定日剂量(PDD/DDD)均值大于1,分别为:1.52,1.42和1.29。合并肾病的患者的5类降血压药PDD/DDD均值高于未合并肾病患者。合并肝病的患者的ACEI、ARB和利尿剂(DU)类降血压药PDD/DDD均值高于未合并肝病患者。结论CCB、β-B和ARB是老年高血压患者最常用的3类降血压药,特别是氨氯地平、美托洛尔和缬沙坦;仍需警惕老年高血压患者降压药物禁忌证,重视合并肾病、肝病患者的药物剂量管理。

33398例次肾移植术后高血压患者降血压药物利用分析

目的分析2015—2018年全国5个城市肾移植术后高血压患者特征及降血压药物使用情况,为临床合理用药提供参考。方法基于《医院处方分析合作项目》随机抽取的多中心处方大数据,采用世界卫生组织(WHO)推荐的药物利用分析方法,对降血压药物的使用情况进行分析。结果抽取5个城市共40家三级医院(不含军队医院)共计33398例肾移植术后高血压患者。男女比例为2.56:1。中位年龄43岁,41~64岁年龄段患者占比最高(50.93%)。患者主要来源于门诊(81.94%)。75.71%肾移植患者使用降血压药物时没有高血压诊断记录。各类降血压药物中,钙通道阻断药(CCB)[(二氢吡啶类CCB,dCCB)31.15%,非二氢吡啶类CCB(ndCCB)10.54%]、血管紧张肽Ⅱ受体拮抗剂(ARB,24.86%)、β受体阻断药(βBs,21.16%)类药物处方量位列前三。CCB与ARB类中处方量前三的药物处方日剂量(PDD)/确定限定日剂量(DDD)值均大于1。最常用的单药降血压方案为dCCB,最常用的联合用药方案是dCCB+ARB及dCCB+βB。结论各地区降血压药物使用基本合理,但在疾病诊断记录及药物剂量方面尚需进一步加强管理,在治疗时应综合考虑患者年龄、并发症、用药依从性和经济状况,遵循个体化治疗原则。

Explore potential biomarkers to provide a theoretical basis for the treatment of liver fibrosis with pirfenidone

Background:Hepatic fibrosis is a common chronic liver disease in clinic,the purpose of our study is to explore potential biomarkers to provide a theoretical basis for the treatment of liver fibrosis with pirfenidone.Methods:We downloaded a gene-sequencing dataset and a single-cell dataset from the GEO database and pirfenidone target genes from three different databases.First,we performed GO,KEGG,and DO analysis on pirfenidone target genes.Then,we grouped the liver tissue sequencing data(GSE162694)in the sequencing data set(N-F0 group and F1-F4 group)and performed gene expression differential analysis on these two groups,weighted gene co-expression network analysis and gene Enrichment analysis.Finally,we intersected the significantly upregulated genes in the F1-F4 group with the pirfenidone target genes and performed PPI network analysis.In order to further explore the expression of both pirfenidone drug target genes and liver fibrosis disease genes(PDLFG)in different immune cells of liver tissue,we used the CD45+cell data in the GSE136103 data set for further analysis.Results:A subnetwork consisting of CDC42,HNF4A,BHLHE40,CCDC71L,NR1H3,TNF,MGLL,GPT,SCD and PLIN1 was screened out,and by analysis,we finally identified the SCD as PDLFG.In single-cell sequencing analysis,we found that SCD was highly expressed in M2-polarized macrophages.Conclusion:SCD may be an important target protein to inhibit the progression of liver fibrosis.

新型冠状病毒肺炎疫情期间药师规范化培训教育的应急管理

目的 探讨新型冠状病毒肺炎(简称新冠肺炎)疫情期间药师规范化培训的应急管理,为突发公共卫生事件中学生的应急管理工作提供参考。方法 从防控知识宣传、理论学习模式、专业技能培训模式、考勤管理、个人防护、报告制度和心理干预8个方面,探讨华西医院新冠肺炎疫情期间药师规范化培训学员的应急管理工作。结果 医院所有药师规范化培训学员均已参与正常药学部门轮转工作,共收到每日健康报告30份,所有学员均无发热、咳嗽症状,无新冠肺炎确诊或疑似病例发生,教学工作顺利开展。结论 突发公共卫生事件期间,应重视学生的思想教育和心理干预工作,灵活改变教学模式,保障学员的身体和心理健康。