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基于遗传算法的QUBE-Servo2倒立摆系统PD参数整定
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作者 孙慧慧 栾卉 +2 位作者 王沁怡 宋元春 尹佳欣 《吉林大学学报(信息科学版)》 2025年第1期58-64,共7页
针对传统试凑法选取的倒立摆PD(Proportion Differentiation)控制器参数具有主观性强,系统响应能力不佳等问题,采用遗传算法整定控制器参数,进行模型仿真分析并最终运行于QUBE-Servo2旋转倒立摆实验系统。实验表明,相比于试凑法,用遗传... 针对传统试凑法选取的倒立摆PD(Proportion Differentiation)控制器参数具有主观性强,系统响应能力不佳等问题,采用遗传算法整定控制器参数,进行模型仿真分析并最终运行于QUBE-Servo2旋转倒立摆实验系统。实验表明,相比于试凑法,用遗传算法得到的PD控制器参数能使系统的响应性能进一步优化,且不受主观经验限制,摆杆和摆臂的稳态误差都在±0.01 rad以内。 展开更多
关键词 旋转倒立摆 数学模型 pd控制 遗传算法
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共抑制分子TIGIT/CD155和PD-1在慢性淋巴细胞白血病中的表达及临床意义
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作者 张瑞 陈双 +1 位作者 骆婷婷 曲建华 《中国实验血液学杂志》 北大核心 2025年第1期54-61,共8页
目的:探讨共抑制分子TIGIT/CD155和PD-1在慢性淋巴细胞白血病(CLL)患者外周血CD4^(+)T细胞和Treg细胞上的表达,并分析其临床意义。方法:选取40例CLL患者和20例健康人员,采用流式细胞术检测CD4^(+)T细胞和Treg细胞表面抑制性分子PD-1、TI... 目的:探讨共抑制分子TIGIT/CD155和PD-1在慢性淋巴细胞白血病(CLL)患者外周血CD4^(+)T细胞和Treg细胞上的表达,并分析其临床意义。方法:选取40例CLL患者和20例健康人员,采用流式细胞术检测CD4^(+)T细胞和Treg细胞表面抑制性分子PD-1、TIGIT的表达水平,并检测受试者外周血B细胞和DC细胞上CD155的表达水平。结果:CLL患者组外周血PD-1^(+)TIGIT^(+)CD4^(+)T细胞、PD-1^(+)TIGIT^(+)Treg细胞、CD155^(+)DC细胞比例均明显高于健康对照组(P<0.05)。CLL患者的PD-1^(+)TIGIT^(+)CD4^(+)T细胞和PD-1^(+)TIGIT^(+)Treg细胞比例均明显高于PD-1^(+)TIGIT-CD4^(+)T细胞和PD-1^(+)TIGIT-Treg细胞(P<0.05)。PD-1^(+)TIGIT^(+)CD4^(+)T细胞和PD-1^(+)TIGIT^(+)Treg细胞均与CD155^(+)DC细胞水平呈正相关(r=0.742,r=0.766)。随着Binet分期进展,PD-1^(+)TIGIT^(+)CD4^(+)T细胞、PD-1^(+)TIGIT^(+)Treg细胞、CD155^(+)DC细胞比例逐渐增加(P<0.05),CD38≥30%、IGVH未突变、染色体异常的预后不良组患者的上述三种细胞比例均增高(P<0.05)。结论:PD-1和TIGIT共抑制分子可能参与了CLL晚期患者的免疫耗竭,具有临床预后参考价值。双抑制分子靶向治疗为CLL个体化治疗提供了新的方向。 展开更多
关键词 慢性淋巴细胞白血病 抑制性分子 pd-1 TIGIT
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PD-L1单抗加强紫杉醇联合香菇多糖体外抗人乳腺癌MDA-MB-231作用
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作者 李汾 平娜娜 +2 位作者 曾菊绒 胥晓丽 刘鹏 《西安交通大学学报(医学版)》 北大核心 2025年第1期94-100,共7页
目的 探讨程序性细胞死亡-配体1(PD-L1)单抗、紫杉醇(PTX)联合香菇多糖(LNT)体外对人乳腺癌细胞(MDA-MB-231)的作用。方法 将MDA-MB-231、人外周血单个核细胞(PBMC)和MDA-MB-231+PBMC共培养,随机分为对照组、PTX组、LNT组、MPDL3280A(PD... 目的 探讨程序性细胞死亡-配体1(PD-L1)单抗、紫杉醇(PTX)联合香菇多糖(LNT)体外对人乳腺癌细胞(MDA-MB-231)的作用。方法 将MDA-MB-231、人外周血单个核细胞(PBMC)和MDA-MB-231+PBMC共培养,随机分为对照组、PTX组、LNT组、MPDL3280A(PD-L1单抗)组、PTX+LNT组和PTX+LNT+MPDL3280A组。采用CCK8检测细胞的活性;流式细胞术检测MHC-I和PD-L1的表达;ELISA试剂盒检测IFN-γ和TNF-α的含量。结果 与对照组相比,PTX组、MPDL3280A组、PTX+LNT组及PTX+LNT+MPDL3280A组显著抑制MDA-MB-231的活性(P<0.01);LNT组和PTX+LNT+MPDL3280A组显著促进PBMC的免疫作用(P<0.05,P<0.01);PTX+LNT+MPDL3280A组显著抑制MDA-MB-231+PBMC共培养MDA-MB-231的活性(0.56±0.16 vs. 0.39±0.13,P<0.05);LNT显著促进MDA-MB-231上PD-L1的表达和PBMC分泌IFN-γ(P<0.05)。结论 PD-L1单抗通过阻断PD-L1与PD-1之间的作用,提高免疫,促进PTX联合LNT的体外抗三阴性乳腺癌作用。 展开更多
关键词 程序性细胞死亡-配体1(pd-L1)单抗 紫杉醇(PTX) 香菇多糖(LNT) 抗人乳腺癌MDA-MB-231
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Effects of proton pump inhibitors on inflammatory bowel disease:An updated review 被引量:2
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作者 Yu Liang Zhen Meng +1 位作者 Xue-Li Ding Man Jiang 《World Journal of Gastroenterology》 SCIE CAS 2024年第21期2751-2762,共12页
Inflammatory bowel disease(IBD)is believed to be caused by various factors,including abnormalities in disease susceptibility genes,environmental factors,immune factors,and intestinal bacteria.Proton pump inhibitors(PP... Inflammatory bowel disease(IBD)is believed to be caused by various factors,including abnormalities in disease susceptibility genes,environmental factors,immune factors,and intestinal bacteria.Proton pump inhibitors(PPIs)are the primary drugs used to treat acid-related diseases.They are also commonly prescribed to patients with IBD.Recent studies have suggested a potential association between the use of certain medications,such as PPIs,and the occurrence and progression of IBD.In this review,we summarize the potential impact of PPIs on IBD and analyze the underlying mechanisms.Our findings may provide insights for conducting further investigations into the effects of PPIs on IBD and serve as an important reminder for physicians to exercise caution when prescribing PPIs to patients with IBD. 展开更多
关键词 Drug safety Proton pump inhibitor Inflammatory bowel disease Ulcerative colitis Crohn’s disease
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血清HIF-1α、PD-L1、VEGF-C、VEGFR-3水平对非小细胞肺癌患者淋巴结转移的预测价值
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作者 李敏 王媛 +1 位作者 李震 郑芝欣 《实用癌症杂志》 2025年第2期218-222,226,共6页
目的 探究非小细胞肺癌(NSCLC)患者血清缺氧诱导因子-1α(HIF-1α)、程序性细胞死亡蛋白1(PD-L1)、血管内皮生长因子C(VEGF-C)、血管内皮生长因子受体3(VEGFR-3)水平及其对淋巴结转移的预测价值。方法 收集109例NSCLC患者临床资料。依... 目的 探究非小细胞肺癌(NSCLC)患者血清缺氧诱导因子-1α(HIF-1α)、程序性细胞死亡蛋白1(PD-L1)、血管内皮生长因子C(VEGF-C)、血管内皮生长因子受体3(VEGFR-3)水平及其对淋巴结转移的预测价值。方法 收集109例NSCLC患者临床资料。依照患者淋巴结转移情况分为转移组(18例)和非转移组(91例)。比较两组基础资料、HIF-1α、PD-L1、VEGF-C、VEGFR-3水平;分析HIF-1α、PD-L1、VEGF-C、VEGFR-3与NSCLC临床特征的关系;进一步明确HIF-1α、PD-L1、VEGF-C、VEGFR-3对淋巴结转移的预测价值。结果 两组年龄、性别、病理类型、肿瘤部位、肿瘤分叶比较,差异无统计学意义,P>0.05;两组肿瘤直径、TMN分期差异显著,P<0.05。转移组HIF-1α、PD-L1、VEGF-C、VEGFR-3水平均高于非转移组,差异显著(P<0.05)。HIF-1α、PD-L1、VEGF-C、VEGFR-3水平与年龄、性别、病理类型、肿瘤部位、肿瘤分叶无关,与肿瘤直径、TMN分期可能有关,肿瘤直径≥2 cm、TMN分期为Ⅲ+Ⅳ期患者的HIF-1α、PD-L1、VEGF-C、VEGFR-3水平均高于肿瘤直径<2 cm、TMN分期为Ⅰ+Ⅱ期患者,差异显著(P<0.05)。HIF-1α、PD-L1、VEGF-C、VEGFR-3的预测阈值分别为:68.960 ng/L、361.070 pg/ml、507.730 ng/L、1202.645 ng/L。HIF-1α、PD-L1、VEGF-C、VEGFR-3联合预测NSCLC淋巴结转移的AUC最高,为0.843,灵敏度、特异度均高于单一指标。结论 HIF-1α、PD-L1、VEGF-C、VEGFR-3水平均在NSCLC淋巴结转移下异常增加,四者联合对NSCLC淋巴结转移有良好的预测价值,可作为临床上的NSCLC淋巴结转移评估因子。 展开更多
关键词 非小细胞肺癌 HIF-1Α pd-L1 VEGF-C VEGFR-3 淋巴结转移 预测
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Updates of developments in interventional therapy for elderly patients with cardiovascular diseases 被引量:1
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作者 Hua SHEN Xun-Xun FENG +1 位作者 Qian-Yun GUO Yu-Jie ZHOU 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2024年第1期1-3,共3页
Cardiovascular diseases(CVD)are the leading cause of death in the world and one of the most common diseases in the elderly,with high prevalence and poor prognosis,which seriously affect the health of the elder patient... Cardiovascular diseases(CVD)are the leading cause of death in the world and one of the most common diseases in the elderly,with high prevalence and poor prognosis,which seriously affect the health of the elder patients.One report showed that global deaths from CVD increased from 12.4 million in 1990 to 19.8 million in 2022,reflecting the global population growth and aging,as well as the impact of metabolic,environmental,and behavioral risks.[1]With the progress of aging population,the burden of CVD in the elderly in China has increased year by year,and factors including multiple complications,organ function decline,and high complication rate have made the interventional treatment of CVD in the elderly one of the difficulties and focuses in the field of cardiology in China. 展开更多
关键词 diseaseS PATIENTS PROGNOSIS
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Update in lean metabolic dysfunction-associated steatotic liver disease 被引量:1
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作者 Karina Sato-Espinoza Perapa Chotiprasidhi +1 位作者 Mariella R Huaman Javier Díaz-Ferrer 《World Journal of Hepatology》 2024年第3期452-464,共13页
BACKGROUND A new nomenclature consensus has emerged for liver diseases that were previously known as non-alcoholic fatty liver disease(NAFLD)and metabolic dysfunction-associated fatty liver disease(MAFLD).They are now... BACKGROUND A new nomenclature consensus has emerged for liver diseases that were previously known as non-alcoholic fatty liver disease(NAFLD)and metabolic dysfunction-associated fatty liver disease(MAFLD).They are now defined as metabolic dysfunction-associated steatotic liver disease(MASLD),which includes cardiometabolic criteria in adults.This condition,extensively studied in obese or overweight patients,constitutes around 30%of the population,with a steady increase worldwide.Lean patients account for approximately 10%-15%of the MASLD population.However,the pathogenesis is complex and is not well understood.AIM To systematically review the literature on the diagnosis,pathogenesis,characteristics,and prognosis in lean MASLD patients and provide an interpretation of these new criteria.METHODS We conducted a comprehensive database search on PubMed and Google Scholar between January 2012 and September 2023,specifically focusing on lean NAFLD,MAFLD,or MASLD patients.We include original articles with patients aged 18 years or older,with a lean body mass index categorized according to the World Health Organization criteria,using a cutoff of 25 kg/m2 for the general population and 23 kg/m2 for the Asian population.RESULTS We include 85 studies in our analysis.Our findings revealed that,for lean NAFLD patients,the prevalence rate varied widely,ranging from 3.8%to 34.1%.The precise pathogenesis mechanism remained elusive,with associations found in genetic variants,epigenetic modifications,and adaptative metabolic response.Common risk factors included metabolic syndrome,hypertension,and type 2 diabetes mellitus,but their prevalence varied based on the comparison group involving lean patients.Regarding non-invasive tools,Fibrosis-4 index outperformed the NAFLD fibrosis score in lean patients.Lifestyle modifications aided in reducing hepatic steatosis and improving cardiometabolic profiles,with some medications showing efficacy to a lesser extent.However,lean NAFLD patients exhibited a worse prognosis compared to the obese or overweight counterpart.CONCLUSION MASLD is a complex disease comprising epigenetic,genetic,and metabolic factors in its pathogenesis.Results vary across populations,gender,and age.Limited data exists on clinical practice guidelines for lean patients.Future studies employing this new nomenclature can contribute to standardizing and generalizing results among lean patients with steatotic liver disease. 展开更多
关键词 LEAN NON-OBESE Non-alcoholic fatty liver disease Metabolic dysfunction-associated fatty liver disease Metabolic dysfunction-associated steatotic liver disease Guidelines Diagnosis Management PATHOGENESIS Treatment
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Report on Cardiovascular Health and Diseases in China 2023:An Updated Summary 被引量:3
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作者 National Center for Cardiovascular Diseases The Writing Committee of the Report on Cardiovascular Health and Diseases in China Shengshou Hu 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第9期949-992,共44页
Since 1990,China has made considerable progress in resolving the problem of“treatment difficulty”of cardiovascular diseases(CVD).The prevalent unhealthy lifestyle among Chinese residents has exposed a massive propor... Since 1990,China has made considerable progress in resolving the problem of“treatment difficulty”of cardiovascular diseases(CVD).The prevalent unhealthy lifestyle among Chinese residents has exposed a massive proportion of the population to CVD risk factors,and this situation is further worsened due to the accelerated aging population in China.CVD remains one of the greatest threats to the health of Chinese residents.In terms of the proportions of disease mortality among urban and rural residents in China,CVD has persistently ranked first.In 2021,CVD accounted for 48.98%and 47.35%of deaths in rural and urban areas,respectively.Two out of every five deaths can be attributed to CVD.To implement a national policy“focusing on the primary health institute and emphasizing prevention”and truly achieve a shift of CVD prevention and treatment from hospitals to communities,the National Center for Cardiovascular Diseases has organized experts from relevant fields across China to compile the“Report on Cardiovascular Health and Diseases in China”annually since 2005.The 2024 report is established based on representative,published,and high-quality big-data research results from cross-sectional and cohort population epidemiological surveys,randomized controlled clinical trials,large sample registry studies,and typical community prevention and treatment cases,along with data from some projects undertaken by the National Center for Cardiovascular Diseases.These firsthand data not only enrich the content of the current report but also provide a more timely and comprehensive reflection of the status of CVD prevention and treatment in China. 展开更多
关键词 Cardiovascular disease Risk factor PREVALENCE MORTALITY Rehabilitation Basic research Medical device development Health economics
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Pd单原子和Pd纳米颗粒协同催化肉桂醛加氢制苯丙醛
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作者 任小敏 赵芋衡 +3 位作者 马颖 张啟霞 马军 刘岳峰 《低碳化学与化工》 北大核心 2025年第2期45-52,共8页
由于肉桂醛(CAL)分子中的两个不饱和化学键构成了复杂的共轭体系,CAL分子中的C==C和C==O键进行选择性加氢以生成所需产物是一项具有挑战性的工作。分别制备了Pd单原子、Pd纳米颗粒及Pd单原子和纳米颗粒共同负载在纳米金刚石(ND)的催化剂... 由于肉桂醛(CAL)分子中的两个不饱和化学键构成了复杂的共轭体系,CAL分子中的C==C和C==O键进行选择性加氢以生成所需产物是一项具有挑战性的工作。分别制备了Pd单原子、Pd纳米颗粒及Pd单原子和纳米颗粒共同负载在纳米金刚石(ND)的催化剂(分别为Pd_(1)/ND(w(Pd)=0.05%)、Pd_(NPs)/ND(w(Pd)=0.25%)和Pd_(1+NPs)/ND(w(Pd)=0.25%)),并研究了Pd的几何和电子结构对催化剂催化CAL加氢性能的影响。通过HR-TEM、XRD和XPS等方法对ND进行了表征。结果表明,ND是一种表面含有丰富氧官能团且具有单原子锚定位点的高结晶度及高表面能的载体。同时利用HADDF-STEM、AC-TEM和XPS等方法对Pd_(1+NPs)/ND的几何和电子结构进行了分析。结果表明,与Pd/C相比,Pd_(1+NPs)/ND具有更高的n(Pdδ+)/n(Pd0),进一步证实了Pd_(1+NPs)/ND上Pd单原子和Pd颗粒共存。在反应温度为40℃、H2压力为1 MPa和n(Pd)/n(CAL)为0.023%的条件下,分别考察了Pd_(1+NPs)/ND、Pd/C、Pd_(1)/ND和Pd_(NPs)/ND对CAL加氢反应的催化性能。结果表明,Pd_(1+NPs)/ND表现出远高于Pd/C的催化活性和苯丙醛(HCAL)选择性,Pd_(1)/ND和Pd_(NPs)/ND均表现出较低的催化活性。因此,在Pd_(1+NPs)/ND高效催化CAL加氢反应中,Pd单原子和Pd纳米颗粒之间存在协同效应。 展开更多
关键词 pd单原子 pd纳米颗粒 纳米金刚石 肉桂醛加氢 协同催化
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区间二型模糊PD控制器的参数设计方法
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作者 何小飞 杨盛毅 +1 位作者 陈静 刘超 《现代信息科技》 2025年第1期66-70,共5页
区间二型模糊PD控制器能够很好地克服系统不确定性带来的影响,因为区间二型模糊系统中FOU的宽度可以影响控制器性能。以往都是根据人为经验来确定FOU的宽度,但其设计难度会随着输入函数的增多而增大。因此,提出了一种利用遗传算法来设计... 区间二型模糊PD控制器能够很好地克服系统不确定性带来的影响,因为区间二型模糊系统中FOU的宽度可以影响控制器性能。以往都是根据人为经验来确定FOU的宽度,但其设计难度会随着输入函数的增多而增大。因此,提出了一种利用遗传算法来设计FOU宽度的方法,选取时间乘误差的积分与超调量的和构建目标函数,通过算法不断的迭代优化得出目标函数值最小所对应的最优FOU宽度。为了评估所提出算法的有效性,在两种典型状态下将其与传统PID控制器、常规区间二型模糊PD控制器进行比较分析。实验表明,所提出的优化策略具有较快的调节时间和较小的稳态误差。 展开更多
关键词 区间二型模糊 FOU 遗传算法 pd
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沙库巴曲缬沙坦对COPD合并心力衰竭患者心功能的影响
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作者 杨增芯 李伟章 +2 位作者 翁玉龙 陈兵 陆鑫 《临床合理用药》 2025年第1期1-3,7,共4页
目的观察沙库巴曲缬沙坦对慢性阻塞性肺疾病(COPD)合并心力衰竭(HF)患者心功能的影响。方法采用回顾性分析,选择2019年1月—2020年12月于江阴市人民医院住院治疗的COPD合并HF患者341例,依据治疗方案不同分为观察组(n=184)和对照组(n=157... 目的观察沙库巴曲缬沙坦对慢性阻塞性肺疾病(COPD)合并心力衰竭(HF)患者心功能的影响。方法采用回顾性分析,选择2019年1月—2020年12月于江阴市人民医院住院治疗的COPD合并HF患者341例,依据治疗方案不同分为观察组(n=184)和对照组(n=157)。观察组使用沙库巴曲缬沙坦治疗,对照组使用缬沙坦治疗。治疗3个月后,比较2组心功能指标[左室射血分数(LVEF)、左室收缩末期内径(LVESD)、左室舒张末期内径(LVEDD)]、肺动脉压力、脑利尿钠肽(BNP)水平、6 min步行距离(6MWD)及明尼苏达心力衰竭生活质量量表(MLHFQ)评分。结果治疗3个月后,对照组LVEF、LVESD、LVEDD及肺动脉压力较治疗前无显著变化(P>0.05),而观察组LVEF较治疗前和对照组升高,LVESD、LVEDD及肺动脉压力较治疗前和对照组降低(P<0.05或P<0.01);2组BNP水平及MLHFQ评分较治疗前降低,6MWD较治疗前延长,且观察组BNP水平及MLHFQ评分低于对照组,6MWD长于对照组(P<0.05或P<0.01)。结论沙库巴曲缬沙坦可显著改善COPD合并HF患者的心功能,提高患者的生活质量。 展开更多
关键词 慢性阻塞性肺疾病 心力衰竭 沙库巴曲缬沙坦 心功能
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Updated roles of the gut microbiota in exploring shrimp etiology, polymicrobial pathogens, and disease incidence
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作者 Jin-Bo Xiong Hao-Nan Sha Jiong Chen 《Zoological Research》 SCIE CSCD 2024年第4期910-923,共14页
Litopenaeus vannamei is the most extensively cultured shrimp species globally,recognized for its scale,production,and economic value.However,its aquaculture is plagued by frequent disease outbreaks,resulting in rapid ... Litopenaeus vannamei is the most extensively cultured shrimp species globally,recognized for its scale,production,and economic value.However,its aquaculture is plagued by frequent disease outbreaks,resulting in rapid and massive mortality.etiological research often lags behind the emergence of new diseases,leaving the causal agents of some shrimp diseases unidentified and leading to nomenclature based on symptomatic presentations,especially in cases involving co-and polymicrobial pathogens.Comprehensive data on shrimp disease statuses remain limited.In this review,we summarize current knowledge on shrimp diseases and their effects on the gut microbiome.Furthermore,we also propose a workflow integrating primary colonizers,“driver”taxa in gut networks from healthy to diseased states,disease-discriminatory taxa,and virulence genes to identify potential polymicrobial pathogens.We examine both abiotic and biotic factors(e.g.,external and internal sources and specific-disease effects)that influence shrimp gut microbiota,with an emphasis on the“holobiome”concept and common features of gut microbiota response to diverse diseases.After excluding the effects of confounding factors,we provide a diagnosis model for quantitatively predicting shrimp disease incidence using disease common-discriminatory taxa,irrespective of the causal agents.Due to the conservation of functional genes used in designing specific primers,we propose a practical strategy applying qPCR-assayed abundances of disease common-discriminatory functional genes.This review updates the roles of the gut microbiota in exploring shrimp etiology,polymicrobial pathogens,and disease incidence,offering a refined perspective for advancing shrimp aquaculture health management. 展开更多
关键词 Shrimp disease Gut microbiota Polymicrobial pathogens Diagnosis model disease common-discriminatory taxa disease prediction
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The dopaminergic system and Alzheimer's disease 被引量:1
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作者 Yuhan Zhang Yuan Liang Yixue Gu 《Neural Regeneration Research》 SCIE CAS 2025年第9期2495-2512,共18页
Alzheimer's disease is a common neurodegenerative disorder in older adults.Despite its prevalence,its pathogenesis remains unclea r.In addition to the most widely accepted causes,which in clude excessive amyloid-b... Alzheimer's disease is a common neurodegenerative disorder in older adults.Despite its prevalence,its pathogenesis remains unclea r.In addition to the most widely accepted causes,which in clude excessive amyloid-beta aggregation,tau hyperphosphorylation,and deficiency of the neurotransmitter acetylcholine,numerous studies have shown that the dopaminergic system is also closely associated with the occurrence and development of this condition.Dopamine is a crucial catecholaminergic neurotransmitter in the human body.Dopamine-associated treatments,such as drugs that target dopamine receptor D and dopamine analogs,can improve cognitive function and alleviate psychiatric symptoms as well as ameliorate other clinical manifestations.Howeve r,therapeutics targeting the dopaminergic system are associated with various adverse reactions,such as addiction and exacerbation of cognitive impairment.This review summarizes the role of the dopaminergic system in the pathology of Alzheimer's disease,focusing on currently available dopamine-based therapies for this disorder and the common side effects associated with dopamine-related drugs.The aim of this review is to provide insights into the potential connections between the dopaminergic system and Alzheimer's disease,thus helping to clarify the mechanisms underlying the condition and exploring more effective therapeutic options. 展开更多
关键词 adverse drug reaction Alzheimer's disease CATECHOLAMINE dopamine receptor dopamine receptor heterodimers dopaminergic system neurodegenerative disease NEUROTRANSMITTER signaling pathways traditional Chinese medicine TREATMENT
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Meningeal lymphatic vessel crosstalk with central nervous system immune cells in aging and neurodegenerative diseases 被引量:2
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作者 Minghuang Gao Xinyue Wang +5 位作者 Shijie Su Weicheng Feng Yaona Lai Kongli Huang Dandan Cao Qi Wang 《Neural Regeneration Research》 SCIE CAS 2025年第3期763-778,共16页
Meningeal lymphatic vessels form a relationship between the nervous system and periphery, which is relevant in both health and disease. Meningeal lymphatic vessels not only play a key role in the drainage of brain met... Meningeal lymphatic vessels form a relationship between the nervous system and periphery, which is relevant in both health and disease. Meningeal lymphatic vessels not only play a key role in the drainage of brain metabolites but also contribute to antigen delivery and immune cell activation. The advent of novel genomic technologies has enabled rapid progress in the characterization of myeloid and lymphoid cells and their interactions with meningeal lymphatic vessels within the central nervous system. In this review, we provide an overview of the multifaceted roles of meningeal lymphatic vessels within the context of the central nervous system immune network, highlighting recent discoveries on the immunological niche provided by meningeal lymphatic vessels. Furthermore, we delve into the mechanisms of crosstalk between meningeal lymphatic vessels and immune cells in the central nervous system under both homeostatic conditions and neurodegenerative diseases, discussing how these interactions shape the pathological outcomes. Regulation of meningeal lymphatic vessel function and structure can influence lymphatic drainage, cerebrospinal fluid-borne immune modulators, and immune cell populations in aging and neurodegenerative disorders, thereby playing a key role in shaping meningeal and brain parenchyma immunity. 展开更多
关键词 central nervous system meningeal lymphatic vessels IMMUNITY myeloid cells lymphatic cells neurodegenerative disease
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PD-1单抗联合化疗对非小细胞肺癌患者淋巴细胞亚群的影响及疗效和预后的相关分析
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作者 吕青芳 张鹏 李桂香 《中国肿瘤生物治疗杂志》 北大核心 2025年第1期73-78,共6页
目的:探索淋巴细胞亚群对非小细胞肺癌(NSCLC)患者接受程序性死亡受体1(PD-1)单抗联合化疗的疗效预测及预后评估的价值。方法:回顾性分析2022年1月至2023年12月在兰州大学第二医院确诊的接受PD-1单抗联合化疗的50例NSCLC患者的临床资料... 目的:探索淋巴细胞亚群对非小细胞肺癌(NSCLC)患者接受程序性死亡受体1(PD-1)单抗联合化疗的疗效预测及预后评估的价值。方法:回顾性分析2022年1月至2023年12月在兰州大学第二医院确诊的接受PD-1单抗联合化疗的50例NSCLC患者的临床资料,收集患者治疗前及治疗2周期后的外周血淋巴细胞亚群(包括总T细胞、CD4^(+)T细胞、CD8^(+)T细胞、NK细胞、总B淋巴细胞、CD4^(+)/CD8^(+)T细胞比值等)的数据。治疗2周期后进行影像学检查评价治疗的疗效,分为疾病控制(DC)组和疾病进展(PD)组。使用卡方检验、秩和检验和Logistic回归分析淋巴细胞亚群表达水平与NSCLC患者近期疗效的关系,采用Kaplan-Meier法分析无进展生存期(PFS)预测疗效的价值。结果:PD-1单抗联合化疗对NSCLC患者的免疫状态产生了显著影响,接受免疫联合化疗后,患者外周血CD4^(+)T细胞、CD4^(+)/CD8^(+)T细胞比值均显著升高(均P<0.01),CD8^(+)T细胞下降。近期疗效显示,DC组患者血清CD4^(+)T细胞比例及CD4^(+)/CD8^(+)T细胞比值均高于PD组(均P<0.01)。Logistic多因素分析显示,CD4^(+)/CD8^(+)T细胞比值是PD-1单抗联合化疗疗效的独立影响因素。通过ROC曲线分析,CD4^(+)/CD8^(+)T细胞比值变化量AUC为0.820>0.5,截断值为0.15,CD4^(+)/CD8^(+)T细胞比值变化量≥0.15的患者的PFS更长。结论:晚期NSCLC患者外周血中CD4^(+)T细胞和CD8^(+)T细胞比例、CD4^(+)/CD8^(+)T细胞比值可以预测PD-1单抗联合化疗的疗效和预后。 展开更多
关键词 非小细胞肺癌 pd-1单克隆抗体 免疫治疗 淋巴细胞亚群 生物标志物
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Fabry Disease: Update, Focusing on Heart Disease by Multimodal Imaging
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作者 Adrian Espejel-Guzman Emily Rodríguez +6 位作者 Valente Fernandez-Badillo Javier Serrano-Roman Aldo Cabello-Ganem Alexis Daniel Aparicio-Ortiz Alberto Ramon-Rios Mariali Palacios-Cruz Nilda Espinola-Zavaleta 《World Journal of Cardiovascular Diseases》 CAS 2024年第6期351-362,共12页
Fabry disease (FD) is a rare X-linked lysosomal accumulation disorder caused by a deficiency in the enzyme alpha-galactosidase A (Gal A), resulting in excessive storage of glycosphingolipids, particularly globotriaosy... Fabry disease (FD) is a rare X-linked lysosomal accumulation disorder caused by a deficiency in the enzyme alpha-galactosidase A (Gal A), resulting in excessive storage of glycosphingolipids, particularly globotriaosylceramide (Gb3). This leads to cellular dysfunction in various organs, with cardiovascular compromise being the major cause of morbidity and mortality. This study aimed to provide a comprehensive overview of FD focusing on its genetic, epidemiological, clinical, diagnostic, and therapeutic aspects. This study explored the genetic mutations associated with FD, its epidemiology, clinical phenotypes, cardiac manifestations, diagnostic approaches, and current treatment options. Background: FD is caused by mutations in GLA on the X chromosome, with over 1000 identified variants. Neonatal screening and specific studies have shown an increased incidence of FD. The clinical presentation varies between classic and late phenotypes, with cardiac involvement being a major concern, particularly in late-onset FD. Purpose: This study aimed to summarize the current knowledge on FD, emphasizing cardiac involvement, diagnostic modalities, and treatment options. Methods: A literature review of relevant studies on FD, including genetics, epidemiology, clinical presentation, diagnostic methods, and treatment options, was conducted. Results: Cardiac manifestations of FD included left ventricular hypertrophy (LVH), heart failure, arrhythmias, and sudden death. Diagnostic approaches such as electrocardiography, echocardiography, and cardiac magnetic resonance imaging play crucial roles in the early detection and monitoring of cardiac involvement. Enzyme replacement therapy (ERT) and emerging treatments have shown promise in managing FD, although challenges remain. Conclusions: FD remains a challenging condition in cardiology, with under-diagnosis being a concern. Early detection and specific therapy are essential to improve patient outcomes. Echocardiography and cardiac MRI are valuable tools for diagnosis and follow-up. Despite the advances in treatment, accessibility remains an issue. More research is needed to deepen our understanding of FD and to improve therapeutic strategies. 展开更多
关键词 Fabry disease Hypertrophic Cardiomyopathy ECHOCARDIOGRAPHY Cardiac Magnetic Resonance Imaging Enzyme Replacement Therapy
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索牵引并联康复机器人索力优化与PD控制
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作者 赵昆鹏 赵晓通 +1 位作者 杜凯清 杜敬利 《电子机械工程》 2025年第1期58-64,共7页
康复机器人在提高肢体运动障碍患者及老年人的生活质量方面发挥着越来越大的作用。文中提出一种索牵引并联康复机器人协助患者下肢康复训练的解决方案及对应的索力优化和控制策略。针对索力优化的多解问题,引入了备用目标函数作为索力... 康复机器人在提高肢体运动障碍患者及老年人的生活质量方面发挥着越来越大的作用。文中提出一种索牵引并联康复机器人协助患者下肢康复训练的解决方案及对应的索力优化和控制策略。针对索力优化的多解问题,引入了备用目标函数作为索力出现突变时的备选目标函数。在分析患者行进意图的基础上,将根据患者不同的行进意图,实现不同的辅助功能。基于拉格朗日方法构建了八索六自由度索牵引并联机器人的动力学模型,并在此基础上设计了比例微分(Proportional Differentiation,PD)反馈控制器。通过数值仿真,验证了动力学模型、索力优化和控制方法的有效性。 展开更多
关键词 索牵引并联机器人 动力学模型 索力优化 pd控制
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Small heat shock protein B8:from cell functions to its involvement in diseases and potential therapeutic applications 被引量:1
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作者 Marta Chierichetti Riccardo Cristofani +12 位作者 Valeria Crippa Veronica Ferrari Marta Cozzi Elena Casarotto Paola Pramaggiore Laura Cornaggia Guglielmo Patelli Ali Mohamed Margherita Piccolella Mariarita Galbiati Paola Rusmini Barbara Tedesco Angelo Poletti 《Neural Regeneration Research》 SCIE CAS 2025年第10期2872-2886,共15页
Heat shock protein family B(small)member 8(HSPB8)is a 22 kDa ubiquitously expressed protein belonging to the family of small heat shock proteins.HSPB8 is involved in various cellular mechanisms mainly related to prote... Heat shock protein family B(small)member 8(HSPB8)is a 22 kDa ubiquitously expressed protein belonging to the family of small heat shock proteins.HSPB8 is involved in various cellular mechanisms mainly related to proteotoxic stress response and in other processes such as inflammation,cell division,and migration.HSPB8 binds misfolded clients to prevent their aggregation by assisting protein refolding or degradation through chaperone-assisted selective autophagy.In line with this function,the pro-degradative activity of HSPB8 has been found protective in several neurodegenerative and neuromuscular diseases characterized by protein misfolding and aggregation.In cancer,HSPB8 has a dual role being capable of exerting either a pro-or an anti-tumoral activity depending on the pathways and factors expressed by the model of cancer under investigation.Moreover,HSPB8 exerts a protective function in different diseases by modulating the inflammatory response,which characterizes not only neurodegenerative diseases,but also other chronic or acute conditions affecting the nervous system,such as multiple sclerosis and intracerebellar hemorrhage.Of note,HSPB8 modulation may represent a therapeutic approach in other neurological conditions that develop as a secondary consequence of other diseases.This is the case of cognitive impairment related to diabetes mellitus,in which HSPB8 exerts a protective activity by assuring mitochondrial homeostasis.This review aims to summarize the diverse and multiple functions of HSPB8 in different pathological conditions,focusing on the beneficial effects of its modulation.Drug-based and alternative therapeutic approaches targeting HSPB8 and its regulated pathways will be discussed,emphasizing how new strategies for cell and tissue-specific delivery represent an avenue to advance in disease treatments. 展开更多
关键词 AGGREGATION AUTOPHAGY cancer CHAPERONE chaperone-assisted selective autophagy cognitive impairment HSPB8 NEUROINFLAMMATION neuromuscular diseases therapy
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老年COPD病人并发吞咽障碍风险预测模型的构建
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作者 陈艺萍 丁美祝 +2 位作者 邵洒云 周逊 何文芳 《护理研究》 北大核心 2025年第2期204-210,共7页
目的:分析老年慢性阻塞性肺疾病(COPD)病人并发吞咽障碍的影响因素,分别构建Logistic回归模型和决策树风险预测模型。方法:选取2021年7月—2023年7月在我院住院治疗的250例老年COPD病人为研究对象,采用病人信息调查表进行调查,采用Logis... 目的:分析老年慢性阻塞性肺疾病(COPD)病人并发吞咽障碍的影响因素,分别构建Logistic回归模型和决策树风险预测模型。方法:选取2021年7月—2023年7月在我院住院治疗的250例老年COPD病人为研究对象,采用病人信息调查表进行调查,采用Logistic回归分析筛选老年COPD病人并发吞咽障碍的影响因素,构建老年COPD病人并发吞咽障碍的Logistic回归模型及决策树模型,并分析其对老年COPD病人并发吞咽障碍的预测效能。结果:250例老年COPD病人中有120例发生吞咽障碍,吞咽障碍发生率为48%。Logistic回归分析结果显示,牙齿缺失≥6颗及存在营养不良、认知障碍、口腔衰弱、中重度COPD为老年COPD病人并发吞咽障碍的危险因素(P<0.05)。构建的决策树模型合计6层、17个节点,选择牙齿缺失情况、营养状态、认知障碍、口腔衰弱以及COPD严重程度5个解释变量,其中营养状态为老年COPD病人并发吞咽障碍最重要的影响因素。老年COPD病人并发吞咽障碍的Logistic回归模型受试者工作特征曲线下面积(AUC)为0.682[95%CI(0.620,0.739)],决策树模型AUC为0.747[95%CI(0.689,0.800)],2种模型的Delong检验结果显示Z=3.118,P=0.001。结论:老年COPD病人吞咽障碍发生率较高,牙齿缺失≥6颗及存在营养不良、认知障碍、口腔衰弱、中重度COPD为老年COPD病人并发吞咽障碍的危险因素,构建的决策树模型预测效能高于国Logistic回归模型,可为老年COPD病人预防吞咽障碍的发生及制定针对性的预防性护理干预措施提供参考。 展开更多
关键词 老年人 慢性阻塞性肺疾病(COpd) 吞咽障碍 影响因素 决策树模型 预防性护理
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Copper homeostasis and neurodegenerative diseases
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作者 Yuanyuan Wang Daidi Li +2 位作者 Kaifei Xu Guoqing Wang Feng Zhang 《Neural Regeneration Research》 SCIE CAS 2025年第11期3124-3143,共20页
Copper,one of the most prolific transition metals in the body,is required for normal brain physiological activity and allows various functions to work normally through its range of concentrations.Copper homeostasis is... Copper,one of the most prolific transition metals in the body,is required for normal brain physiological activity and allows various functions to work normally through its range of concentrations.Copper homeostasis is meticulously maintained through a complex network of copper-dependent proteins,including copper transporters(CTR1 and CTR2),the two copper ion transporters the Cu-transporting ATPase 1(ATP7A)and Cu-transporting beta(ATP7B),and the three copper chaperones ATOX1,CCS,and COX17.Disruptions in copper homeostasis can lead to either the deficiency or accumulation of copper in brain tissue.Emerging evidence suggests that abnormal copper metabolism or copper binding to various proteins,including ceruloplasmin and metallothionein,is involved in the pathogenesis of neurodegenerative disorders.However,the exact mechanisms underlying these processes are not known.Copper is a potent oxidant that increases reactive oxygen species production and promotes oxidative stress.Elevated reactive oxygen species levels may further compromise mitochondrial integrity and cause mitochondrial dysfunction.Reactive oxygen species serve as key signaling molecules in copper-induced neuroinflammation,with elevated levels activating several critical inflammatory pathways.Additionally,copper can bind aberrantly to several neuronal proteins,including alphasynuclein,tau,superoxide dismutase 1,and huntingtin,thereby inducing neurotoxicity and ultimately cell death.This study focuses on the latest literature evaluating the role of copper in neurodegenerative diseases,with a particular focus on copper-containing metalloenzymes and copper-binding proteins in the regulation of copper homeostasis and their involvement in neurodegenerative disease pathogenesis.By synthesizing the current findings on the functions of copper in oxidative stress,neuroinflammation,mitochondrial dysfunction,and protein misfolding,we aim to elucidate the mechanisms by which copper contributes to a wide range of hereditary and neuronal disorders,such as Wilson's disease,Menkes'disease,Alzheimer's disease,Parkinson's disease,amyotrophic lateral sclerosis,Huntington's disease,and multiple sclerosis.Potential clinically significant therapeutic targets,including superoxide dismutase 1,D-penicillamine,and 5,7-dichloro-2-[(dimethylamino)methyl]-8-hydroxyquinoline,along with their associated therapeutic agents,are further discussed.Ultimately,we collate evidence that copper homeostasis may function in the underlying etiology of several neurodegenerative diseases and offer novel insights into the potential prevention and treatment of these diseases based on copper homeostasis. 展开更多
关键词 Alzheimer's disease amyotrophic lateral sclerosis disease copper homeostasis copper toxicity Huntington's disease Menkes'disease multiple sclerosis neurodegenerative disease Parkinson's disease Wilson's disease
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