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Cost-Effective Method of Gene Synthesis by Sequencing from Microchip-Derived Oligos for Droplet Cloning
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作者 Kimberly Wang 《Advances in Bioscience and Biotechnology》 CAS 2024年第8期474-485,共12页
Gene synthesis has provided important contributions in various fields including genomics and medicine. Current genes are 7 - 30 cents depending on the assembly and sequencing methods performed. Demand for gene synthes... Gene synthesis has provided important contributions in various fields including genomics and medicine. Current genes are 7 - 30 cents depending on the assembly and sequencing methods performed. Demand for gene synthesis has been increasing for the past few decades, yet available methods remain expensive. A solution to this problem involves microchip-derived oligonucleotides (oligos), an oligo pool with a substantial number of oligo fragments. Microchips have been proposed as a tool for gene synthesis, but this approach has been criticized for its high error rate during sequencing. This study tests a possible cost-effective method for gene synthesis utilizing fragment assembly and golden gate assembly, which can be employed for quicker manufacturing and efficient execution of genes in the near future. The droplet method was tested in two trials to determine the viability of the method through the accuracy of the oligos sequenced. A preliminary research experiment was performed to determine the efficacy of oligo lengths ranging from two to four overlapping oligos through Gibson assembly. Of the three oligo lengths tested, only two fragment oligos were correctly sequenced. Two fragment oligos were used for the second experiment, which determined the efficacy of the droplet method in reducing gene synthesis cost and speed. The first trial utilized a high-fidelity polymerase and resulted in 3% correctly sequenced oligos, so the second trial utilized a non-high-fidelity polymerase, resulting in 8% correctly sequenced oligos. After calculating, the cost of gene synthesis lowers down to 0.8 cents/base. The final calculated cost of 0.8 cents/base is significantly cheaper than other manufacturing costs of 7 - 30 cents/base. Reducing the cost of gene synthesis provides new insight into the cost-effectiveness of present technologies and protocols and has the potential to benefit the fields of bioengineering and gene therapy. 展开更多
关键词 cost-effectIVE Gene Synthesis MICROCHIP Oligo Droplet Cloning
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Novel miR-490-3p/hnRNPA1-b/PKM2 axis mediates the Warburg effect and proliferation of colon cancer cells via the PI3K/AKT pathway
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作者 Xiang-Hui Wan Guo-Bing Jin +8 位作者 Qun Yang Ji-Long Hu Zhi-Liang Liu Jun Rao Can Wen Peng-Ling Li Xi-Mei Yang Bo Huang Xiao-Zhong Wang 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第5期2038-2059,共22页
BACKGROUND Heterogeneous ribonucleoprotein A1(hnRNPA1)has been reported to enhance the Warburg effect and promote colon cancer(CC)cell proliferation,but the role and mechanism of the miR-490-3p/hnRNPA1-b/PKM2 axis in ... BACKGROUND Heterogeneous ribonucleoprotein A1(hnRNPA1)has been reported to enhance the Warburg effect and promote colon cancer(CC)cell proliferation,but the role and mechanism of the miR-490-3p/hnRNPA1-b/PKM2 axis in CC have not yet been elucidated.AIM To investigate the role and mechanism of a novel miR-490-3p/hnRNPA1-b/PKM2 axis in enhancing the Warburg effect and promoting CC cell proliferation through the PI3K/AKT pathway.METHODS Paraffin-embedded pathological sections from 220 CC patients were collected and subjected to immunohistochemical analysis to determine the expression of hnRNPA1-b.The relationship between the expression values and the clinicopathological features of the patients was investigated.Differences in mRNA expression were analyzed using quantitative real-time polymerase chain reaction,while differences in protein expression were analyzed using western blot.Cell proliferation was evaluated using the cell counting kit-8 and 5-ethynyl-2’-deoxyuridine assays,and cell cycle and apoptosis were detected using flow cytometric assays.The targeted binding of miR-490-3p to hnRNPA1-b was validated using a dual luciferase reporter assay.The Warburg effect was evaluated by glucose uptake and lactic acid production assays.RESULTS The expression of hnRNPA1-b was significantly increased in CC tissues and cells compared to normal controls(P<0.05).Immunohistochemical results demonstrated significant variations in the expression of the hnRNPA1-b antigen in different stages of CC,including stage I,II-III,and IV.Furthermore,the clinicopathologic characterization revealed a significant correlation between hnRNPA1-b expression and clinical stage as well as T classification.HnRNPA1-b was found to enhance the Warburg effect through the PI3K/AKT pathway,thereby promoting proliferation of HCT116 and SW620 cells.However,the proliferation of HCT116 and SW620 cells was inhibited when miR-490-3p targeted and bound to hnRNPA1-b,effectively blocking the Warburg effect.CONCLUSION These findings suggest that the novel miR-490-3p/hnRNPA1-b/PKM2 axis could provide a new strategy for the diagnosis and treatment of CC. 展开更多
关键词 Heterogeneous ribonucleoprotein A1-b MiR-490-3p Colon cancer Alternative splicing Warburg effect
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Preliminary study on the protective effect of electroacupuncture Neiguan acupoint pretreatment on rats with myocardial ischemia-reperfusion injury:role of the miR-214-3p/NCX1 axis
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作者 Hai-Long Fan Ya-Qin Liu +4 位作者 Li-Li Jiang Qi-Rong Li Li-Li Niu Li-Zhen Yang Fu-Ran Du 《Integrative Medicine Discovery》 2024年第27期1-11,共11页
Background:Ischemia-reperfusion can worsen myocardial damage and increase the risk of death.Studies have revealed that ischemic preconditioning provides the best endogenous protection against myocardial ischemia-reper... Background:Ischemia-reperfusion can worsen myocardial damage and increase the risk of death.Studies have revealed that ischemic preconditioning provides the best endogenous protection against myocardial ischemia-reperfusion injury(MIRI),and the principle of electroacupuncture(EA)preconditioning is comparable to that of myocardial ischemic preconditioning adaption.Our earlier research demonstrated that EA pretreatment inhibits the expression of calmodulin-dependent protein kinase IIδ(CaMKIIδ),sodium/calcium exchanger 1(NCX1),and cyclophilin D,hence providing protection against MIRI.However,the exact mechanism is still unknown.The expression of NCX1 mRNA is directly regulated by microRNA-214(miR-214).Moreover,it suppresses the levels of CaMKIIδand cyclophilin D.Whether these variables contribute to EA preconditioning to improve MIRI needs to be investigated,though.This study aimed to preliminarily determine whether EA pretreatment ameliorates MIRI by modulating the miR-214-3p/NCX1 axis.Methods:We used a rat MIRI model to investigate the effect of EA pretreatment on MIRI and the expression of miR-214-3p.In addition,adenovirus injection inhibited miR-214-3p expression in the rat MIRI model,and the influence of EA pretreatment towards MIRI was observed in the context of blocked miR-214-3p expression.Both the myocardial histological abnormalities and the alterations in the ST segment of the rat electrocardiogram were analyzed.NCX1 mRNA,cyclophilin D,and CaMKIIδexpression levels were also analyzed.Results:EA pretreatment improved MIRI.In rats with MIRI,EA administration increased miR-214-3p expression while decreasing NCX1 mRNA,cyclophilin D,and CaMKIIδproteins in cardiac tissues.The beneficial effect of EA pretreatment against MIRI was reversed,coupled with elevated levels of NCX1 mRNA,cyclophilin D,and CaMKIIδprotein expression,when an adenovirus injection disrupted the expression of miR-214-3p.Conclusions:Our findings preliminarily show that EA pretreatment inhibits the expression of NCX1 mRNA,cyclophilin D,and CaMKIIδproteins via miR-214-3p,hence exerting MIRI protection. 展开更多
关键词 myocardial ischemia-reperfusion injury miR-214-3p NCX1 ELECTROACUPUNCTURE protective effect
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重庆示范性海绵型住区海绵系统长期水文-成本综合绩效优化 被引量:1
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作者 刘家琳 刘兆莉 张蕊 《风景园林》 北大核心 2024年第2期78-86,共9页
【目的】中国海绵城市建设已逐步进入优化营建与科学评估阶段。针对已建成海绵型住区,对于海绵系统的长期水文-成本综合绩效的研究较为欠缺。通过对长期水文、成本的量化评估,探讨亚热带季风性湿润气候地区中住区的海绵系统设计方式。... 【目的】中国海绵城市建设已逐步进入优化营建与科学评估阶段。针对已建成海绵型住区,对于海绵系统的长期水文-成本综合绩效的研究较为欠缺。通过对长期水文、成本的量化评估,探讨亚热带季风性湿润气候地区中住区的海绵系统设计方式。【方法】以重庆示范性海绵型住区为研究对象,构建现状水文模型,通过监测数据进行精准校验。以低成本为目标,采用雨水桶及少量生物滞留设施和渗透塘,设定比选方案S1;以高水文绩效为目标,采用生物滞留设施、雨水桶、渗渠、渗透塘、轻薄绿色屋顶等类型丰富的设施,设定比选方案S2。在校验模型基础上构建出比选方案的水文模型,量化评估各方案长期的水文绩效、成本投入及水文-成本综合绩效。【结果】现状方案的年径流总量控制率为75.3%,略低于规划控制目标,且海绵系统建造维护成本相对最高。S1的平均年径流总量控制率为87.2%,其海绵系统的总投入成本最低。S2的平均年径流总量控制率和峰值削减率最优,其长期水文-成本综合绩效相对现状方案提升3.6倍。其中,透水铺装和蓄水池的水文-成本综合绩效最低,雨水桶与渗渠组合的综合绩效最高。【结论】提出在不同应用条件下,住区适宜采用的不同海绵系统设计方式。当住区绿地率条件良好,对水文-成本综合绩效要求较高时,宜采用具有丰富设施类型的S2。对重庆以及有相似降雨条件的亚热带季风性湿润气候地区中海绵型住区的建设优化有积极参考价值。 展开更多
关键词 海绵城市 海绵型住区 水文绩效 成本效益 重庆
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阿帕替尼联合多柔比星二线治疗铂类耐药的复发性卵巢癌的成本-效果分析
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作者 詹少卿 柳小亚 +1 位作者 周佳琦 陈霞 《中国药房》 CAS 北大核心 2024年第10期1238-1242,共5页
目的从中国卫生体系角度评价阿帕替尼联合多柔比星二线治疗铂类药物耐药的复发性卵巢癌(OC)的经济性。方法基于APPROVE试验和相关文献数据构建三状态分区生存模型,模型模拟时限为10年,循环周期为4周,成本和效果的贴现率为5%。以成本和... 目的从中国卫生体系角度评价阿帕替尼联合多柔比星二线治疗铂类药物耐药的复发性卵巢癌(OC)的经济性。方法基于APPROVE试验和相关文献数据构建三状态分区生存模型,模型模拟时限为10年,循环周期为4周,成本和效果的贴现率为5%。以成本和质量调整生命年(QALYs)作为模型产出指标并计算增量成本-效果比(ICER),评价阿帕替尼联合多柔比星对比多柔比星单独化疗二线治疗铂类药物耐药的复发性OC的经济性,并采用单因素敏感性分析、概率敏感性分析以及情境分析验证基础分析结果的稳健性。结果基础分析结果表明,与单独化疗相比,阿帕替尼联合多柔比星方案的ICER为124678.25元/QALY,低于本研究设定的意愿支付(WTP)阈值(3倍我国2022年人均国内生产总值257094元)。情境分析结果显示,随着模拟时限的延长,阿帕替尼联合多柔比星方案的ICER逐渐降低,降幅逐渐减小,均低于本研究设定的WTP阈值。单因素敏感性分析结果显示,对ICER影响程度最大的因素包括疾病进展状态效用值、体表面积、贴现率和最佳支持治疗成本等。概率敏感性分析结果表明,在本研究设定的WTP阈值下,阿帕替尼联合多柔比星方案具有经济性的概率超过99%。结论从中国卫生体系角度,以3倍我国2022年人均国内生产总值为WTP阈值,阿帕替尼联合多柔比星对比多柔比星单独化疗二线治疗铂类药物耐药的复发性OC更具经济性。 展开更多
关键词 阿帕替尼 多柔比星 铂类耐药 复发性卵巢癌 分区生存模型 成本-效果分析
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他克莫司常释与缓释胶囊预防肝移植术后排斥反应成本-效果分析
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作者 王晓剑 韩宝峰 +1 位作者 刘冉佳 崔向丽 《中国药业》 CAS 2024年第18期113-116,共4页
目的评价他克莫司常释胶囊与缓释胶囊预防肝移植术后排斥反应的成本-效果。方法选取首都医科大学附属北京友谊医院肝移植门诊2016年1月1日至2023年6月30日收治的肝移植术后患者1520例。其中,1031例患者术后口服常释胶囊,489例患者口服... 目的评价他克莫司常释胶囊与缓释胶囊预防肝移植术后排斥反应的成本-效果。方法选取首都医科大学附属北京友谊医院肝移植门诊2016年1月1日至2023年6月30日收治的肝移植术后患者1520例。其中,1031例患者术后口服常释胶囊,489例患者口服缓释胶囊,并在此基础上加用吗替麦考酚酯胶囊(用法用量相同)行免疫抑制治疗。利用TreeAge Pro 2021软件构建Markov模型,研究时限设为30年。以我国医疗卫生体系视角收集成本(直接医疗成本)及效果参数,对缓释胶囊和常释胶囊预防肝移植术后排斥反应的成本-效果进行分析,并通过单因素敏感性分析和概率敏感性分析验证模型。结果与常释胶囊比较,缓释胶囊的增量成本-效果比(ICER)为159357.86元/质量调整生命年(QALY),小于意愿支付阈值(25.7094万元)。缓释胶囊的价格、贴现率和常释胶囊的价格对模型结果影响较大。肝移植术后30年,缓释胶囊具有成本-效果的概率为63.72%。结论肝移植术后30年时限内,与常释胶囊比较,缓释胶囊预防肝移植术后排斥反应更有药物经济学优势。 展开更多
关键词 肝移植 排斥反应 他克莫司 常释胶囊 缓释胶囊 成本-效果分析
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绿色信贷政策的溢出效应--基于审计定价决策视角
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作者 余怒涛 苗瑞晨 王佳妮 《审计与经济研究》 CSSCI 北大核心 2024年第3期54-63,共10页
绿色信贷在改善企业环境治理行为、推动经济社会绿色发展方面发挥了重要作用。从审计定价视角出发,探讨绿色信贷政策引致的溢出效应。以2012年《绿色信贷指引》的出台作为准自然实验,构建双重差分模型检验该政策的实施对绿色信贷限制企... 绿色信贷在改善企业环境治理行为、推动经济社会绿色发展方面发挥了重要作用。从审计定价视角出发,探讨绿色信贷政策引致的溢出效应。以2012年《绿色信贷指引》的出台作为准自然实验,构建双重差分模型检验该政策的实施对绿色信贷限制企业审计定价的影响。研究发现:绿色信贷政策能显著降低受限企业的审计收费。机制检验表明,绿色信贷政策通过引导受限企业进行绿色转型、降低其环境风险以及环境治理中的代理成本,进而降低其审计费用。企业层面的异质性检验表明,绿色信贷政策降低审计费用的正面效应在国有企业、产能利用率较低以及信息质量较差的企业中更为明显;地区层面异质性检验表明,绿色信贷政策的积极效用在银行业竞争更激烈、市场化程度更高以及政府环境规制更强的地区更为明显。结论丰富了绿色信贷政策实施经济后果的相关研究,并从环境规制视角拓展了审计费用影响因素的文献,同时为进一步修订和完善绿色信贷政策提供了经验证据。 展开更多
关键词 绿色金融 信贷政策 审计费用 溢出效应 环境风险 代理成本 绿色转型
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替雷利珠单抗联合化疗一线治疗局部晚期不可切除或转移性胃或胃食管结合部腺癌的成本-效果分析 被引量:1
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作者 冯冰 高宁 +3 位作者 高胜男 郭珊 牛梦娜 刘国强 《中国药房》 CAS 北大核心 2024年第8期967-971,共5页
目的评价替雷利珠单抗联合化疗一线治疗局部晚期不可切除或转移性胃或胃食管结合部腺癌的经济性。方法从我国卫生体系角度出发,利用RATIONALE-305试验和相关文献数据建立分区生存模型,循环周期为3周,模拟时限为10年,贴现率为5%。以质量... 目的评价替雷利珠单抗联合化疗一线治疗局部晚期不可切除或转移性胃或胃食管结合部腺癌的经济性。方法从我国卫生体系角度出发,利用RATIONALE-305试验和相关文献数据建立分区生存模型,循环周期为3周,模拟时限为10年,贴现率为5%。以质量调整生命年(QALYs)为健康产出指标,评价替雷利珠单抗联合化疗对比安慰剂联合化疗一线治疗局部晚期不可切除或转移性胃或胃食管结合部腺癌的经济性,并进行单因素敏感性分析和概率敏感性分析。结果基础分析结果显示,与安慰剂联合化疗相比,替雷利珠单抗联合化疗方案可使患者多获得0.268QALYs,但治疗成本会增加70404.81元,增量成本-效果比(ICER)为262431.62元/QALY,低于3倍2023年我国人均国内生产总值(GDP)的意愿支付阈值(268074元/QALY)。单因素敏感性分析结果显示,无进展生存效用值和替雷利珠单抗药品成本对ICER值的影响较大。概率敏感性分析结果显示,当WTP阈值为3倍2023年我国人均GDP时,替雷利珠单抗具有经济性的概率为53.3%。结论当WTP阈值为3倍2023年我国人均GDP时,与安慰剂联合化疗方案相比,替雷利珠单抗联合化疗一线治疗局部晚期不可切除或转移性胃或胃食管结合部腺癌具有经济性。 展开更多
关键词 替雷利珠单抗 胃或胃食管结合部腺癌 一线治疗方案 成本-效果分析
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美托洛尔、比索洛尔治疗伴高血压的慢性充血性心力衰竭的成本-效果比较 被引量:1
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作者 刘玲 刘文侠 《检验医学与临床》 CAS 2024年第14期2062-2065,2070,共5页
目的 比较美托洛尔、比索洛尔治疗伴高血压的慢性充血性心力衰竭(CHF)的成本-效果。方法 选取2021年12月至2022年5月该院收治的126例伴高血压的CHF患者为研究对象,按照随机数字表法分为美托洛尔组和比索洛尔组,各63例。美托洛尔组在常... 目的 比较美托洛尔、比索洛尔治疗伴高血压的慢性充血性心力衰竭(CHF)的成本-效果。方法 选取2021年12月至2022年5月该院收治的126例伴高血压的CHF患者为研究对象,按照随机数字表法分为美托洛尔组和比索洛尔组,各63例。美托洛尔组在常规药物基础上给予美托洛尔治疗,比索洛尔组在常规药物基础上给予比索洛尔治疗,30 d为1个疗程,均治疗3个疗程。对比2组治疗成本、临床疗效、不良反应,并进行成本-效果分析及敏感性分析。结果 治疗90 d,比索洛尔组和美托洛尔组的药费分别为197.46元、154.26元,比索洛尔组、美托洛尔组的平均治疗总成本分别为(4 105.47±102.48)、(4 063.52±103.61)元;比索洛尔组的疗效优于美托洛尔组,差异有统计学意义(P<0.05);2组不良反应发生率比较,差异无统计学意义(P>0.05);比索洛尔组和美托洛尔组的成本-效果比(C/E)分别为46.19、54.47,比索洛尔组的增量成本-效果比(ΔC/ΔE)为2.94;该研究将成本价格下调10%进行敏感性分析,比索洛尔组的C/E为41.57,美托洛尔组的C/E为49.02,比索洛尔组的ΔC/ΔE为2.64,敏感性分析结果与C/E分析结果一致。结论 比索洛尔治疗伴高血压的CHF临床疗效优于美托洛尔,且更具有经济性,临床可优先选择比索洛尔。 展开更多
关键词 美托洛尔 比索洛尔 高血压 慢性充血性心力衰竭 成本-效果
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恩扎卢胺治疗转移性前列腺癌的成本-效果分析
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作者 杨雷 王凤玲 +4 位作者 黄玲 李燕 郑寒蕊 郑玲利 陈力 《药物流行病学杂志》 CAS 2024年第3期269-276,共8页
目的从我国医疗卫生角度出发,评价恩扎卢胺在转移性前列腺癌治疗中的成本-效果。方法基于已发表的Ⅲ期临床随机对照试验(ENZAMET研究),将转移性前列腺癌的的疾病发展过程分为无进展生存期、进展生存及死亡三种状态,模型周期定义为28 d,... 目的从我国医疗卫生角度出发,评价恩扎卢胺在转移性前列腺癌治疗中的成本-效果。方法基于已发表的Ⅲ期临床随机对照试验(ENZAMET研究),将转移性前列腺癌的的疾病发展过程分为无进展生存期、进展生存及死亡三种状态,模型周期定义为28 d,研究时限为终生,建立Markov模型,评价恩扎卢胺与标准抗雄激素药物治疗转移性前列腺癌的成本-效果,以3倍我国2022年人均国内生产总值作为意愿支付(WTP)阈值,通过敏感性分析验证模型分析结果的稳健性。结果与标准抗雄激素治疗相比,恩扎卢胺增量效果为0.92质量调整生命年(QALYs),增量成本为311863.30元,增量成本-效果比(ICER)为338981.85元/QALY,高于WTP阈值(257094元/QALY)。单因素敏感性分析结果显示,恩扎卢胺组总成本、疾病无进展期效用值、疾病进展期状态恩扎卢胺组的成本、恩扎卢胺单价对于模型结果影响较大。概率敏感性分析结果提示,在WTP阈值范围内,恩扎卢胺治疗方案不具有经济性。结论与标准抗雄激素药物相比,恩扎卢胺治疗转移性前列腺癌不具有成本-效果优势。 展开更多
关键词 恩扎卢胺 转移性前列腺癌 MARKOV模型 成本-效果分析
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Effect of a disposable endoscope precleaning kit in the cleaning procedure of gastrointestinal endoscope:A multi-center observational study 被引量:1
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作者 Yi-Fan Wang Yu Wu +10 位作者 Xiao-Wei Liu Jian-Guo Li Yan-Qiong Zhan Bin Liu Wen-Ling Fan Zi-Heng Peng Jin-Tao Xiao Bing-Bing Li Jian He Jun Yi Zhao-Xia Lu 《World Journal of Gastrointestinal Endoscopy》 2023年第12期705-714,共10页
BACKGROUND Precleaning is a key step in endoscopic reprocessing.AIM To develop an effective and economic endoscope cleaning method by using a disposable endoscope bedside precleaning kit.METHODS Altogether,228 used ga... BACKGROUND Precleaning is a key step in endoscopic reprocessing.AIM To develop an effective and economic endoscope cleaning method by using a disposable endoscope bedside precleaning kit.METHODS Altogether,228 used gastrointestinal endoscopes were selected from five high-volume endoscopy units and precleaned by a traditional precleaning bucket(group T)or a disposable endoscope bedside precleaning kit(group D).Each group was further subdivided based on the replacement frequency of the cleaning solution,which was replaced every time in subgroups T1 and D1 and every several times in subgroups Ts and Ds.The adenosine triphosphate(ATP)level and residual proteins were measured three times:Before and after precleaning and after manual cleaning.RESULTS After precleaning,the precleaning kit significantly reduced the ATP levels(P=0.034)and has a more stable ATP clearance rate than the traditional precleaning bucket.The precleaning kit also saved a quarter of the cost of enzymatic detergent used during the precleaning process.After manual cleaning,the ATP levels were also significantly lower in the precleaning kit group than in the traditional precleaning bucket group(P<0.05).Meanwhile,the number of uses of the cleaning solution(up to four times)has no significant impact on the cleaning effect(P>0.05).CONCLUSION Considering its economic cost and cleaning effect,the use of a disposable endoscope bedside precleaning kit can be an optimal option in the precleaning stage with the cleaning solution being replaced several times in the manual cleaning stage. 展开更多
关键词 Cleaning effect Economic cost ENDOSCOPE Multi-center study Precleaning
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High-resolution microendoscopy for esophageal cancer screening in China: A cost-effectiveness analysis 被引量:9
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作者 Chin Hur Sung Eun Choi +8 位作者 Chung Yin Kong Gui-Qi Wang Hong Xu Alexandros D Polydorides Li-Yan Xue Katherine E Perzan Angela C Tramontano Rebecca R Richards-Kortum Sharmila Anandasabapathy 《World Journal of Gastroenterology》 SCIE CAS 2015年第18期5513-5523,共11页
AIM:To study the cost-effectiveness of high-resolution microendoscopy(HRME)in an esophageal squamous cell carcinoma(ESCC)screening program in China.METHODS:A decision analytic Markov model of ESCC was developed.Separa... AIM:To study the cost-effectiveness of high-resolution microendoscopy(HRME)in an esophageal squamous cell carcinoma(ESCC)screening program in China.METHODS:A decision analytic Markov model of ESCC was developed.Separate model analyses were conducted for cohorts consisting of an averagerisk population or a high-risk population in China.Hypothetical 50-year-old individuals were followed until age 80 or death.We compared three different strategies for both cohorts:(1)no screening;(2)standard endoscopic screening with Lugol’s iodine staining;and(3)endoscopic screening with Lugol’s iodine staining and an HRME.Model parameters were estimated from the literature as well as from GLOBOCAN,the Cancer Incidence and Mortality Worldwide cancer database.Health states in the model included non-neoplasia,mild dysplasia,moderate dysplasia,high-grade dysplasia,intramucosal carcinoma,operable cancer,inoperable cancer,and death.Separate ESCC incidence transition rates were generated for the average-risk and high-risk populations.Costs in Chinese currency were converted to international dollars(I$)and were adjusted to 2012dollars using the Consumer Price Index.RESULTS:The main outcome measurements for this study were quality-adjusted life years(QALYs)and incremental cost-effectiveness ratio(ICER).For the average-risk population,the HRME screening strategy produced 0.043 more QALYs than the no screening strategy at an additional cost of I$646,resulting in an ICER of I$11808 per QALY gained.Standard endoscopic screening was weakly dominated.Among the high-risk population,when the HRME screening strategy was compared with the standard screening strategy,the ICER was I$8173 per QALY.For both the high-risk and average-risk screening populations,the HRME screening strategy appeared to be the most cost-effective strategy,producing ICERs below the willingness-topay threshold,I$23500 per QALY.One-way sensitivity analysis showed that,for the average-risk population,higher specificity of Lugol’s iodine(>40%)and lower specificity of HRME(<70%)could make Lugol’s iodine screening cost-effective.For the high-risk population,the results of the model were not substantially affected by varying the follow-up rate after Lugol’s iodine screening,Lugol’s iodine test characteristics(sensitivity and specificity),or HRME specificity.CONCLUSION:The incorporation of HRME into an ESCC screening program could be cost-effective in China.Larger studies of HRME performance are needed to confirm these findings. 展开更多
关键词 cost-effectIVENESS analysis Diagnostic imaging ENDOSCOPY ESOPHAGEAL SQUAMOUS cell cancer Simulation disease model
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曲妥珠单抗生物类似药与原研药治疗HER-2阳性乳腺癌的疗效与成本—效果比比较
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作者 张云 孙磊 《临床合理用药杂志》 2024年第22期13-15,20,共4页
目的 比较曲妥珠单抗生物类似药与原研药治疗人表皮生长因子受体2(HER-2)阳性乳腺癌的疗效与成本—效果比。方法 选取2020年1月—2022年12月靖江市人民医院收治的HER-2阳性乳腺癌患者74例,遵循1∶1原则随机分为生物类似药组和原研药组,... 目的 比较曲妥珠单抗生物类似药与原研药治疗人表皮生长因子受体2(HER-2)阳性乳腺癌的疗效与成本—效果比。方法 选取2020年1月—2022年12月靖江市人民医院收治的HER-2阳性乳腺癌患者74例,遵循1∶1原则随机分为生物类似药组和原研药组,各37例。生物类似药组采用曲妥珠单抗生物类似药治疗,原研药组采用曲妥珠单抗原研药治疗,3周为1个疗程,2组均持续治疗6个疗程。比较2组疗效,治疗前后肿瘤标志物[癌胚抗原(CEA)、糖类抗原125(CA125)、糖类抗原153(CA153)]水平、肿瘤长径、卡氏(KPS)评分及成本—效果比。结果 生物类似药组与原研药组客观缓解率比较差异不显著(59.46%vs.62.16%,χ^(2)=0.057,P=0.812)。治疗6个疗程后,2组CEA、CA125、CA153水平低于治疗前(P均<0.01),但生物类似药组与原研药组组间比较差异不显著(P>0.05);2组肿瘤长径较治疗前缩短,KPS评分较治疗前提高(P均<0.01),但生物类似药组与原研药组组间比较差异不显著(P>0.05);生物类似药组成本/疗效优于原研药组,经济效益更高。结论 曲妥珠单抗原研药与生物类似药均可改善患者病情,促使肿瘤长径缩短,降低肿瘤标志物水平,且二者疗效相当,但曲妥珠单抗生物类似药的成本—效果比更优,其经济效益更显著。 展开更多
关键词 乳腺癌 人表皮生长因子受体2阳性 曲妥珠单抗生物类似药 曲妥珠单抗生物原研药 疗效 成本—效果比
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Cost-effectiveness analysis of colon cancer treatments from MOSIAC and No.16968 trials 被引量:3
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作者 Feng Wen Ke Yao +4 位作者 Ze-Dong Du Xiao-Feng He Peng-Fei Zhang Rui-Lei Tang Qiu Li 《World Journal of Gastroenterology》 SCIE CAS 2014年第47期17976-17984,共9页
AIM: To compare XELOX and FOLFOX4 as colon cancer adjuvant chemotherapy based on MOSAIC and No. 16968 trails from Chinese cost-effectiveness perspective. METHODS: A decision-analytic Markov model was developed to comp... AIM: To compare XELOX and FOLFOX4 as colon cancer adjuvant chemotherapy based on MOSAIC and No. 16968 trails from Chinese cost-effectiveness perspective. METHODS: A decision-analytic Markov model was developed to compare the FOLFOX4 and XELOX regimens based MOSAIC and No. 16968 trial. Five states were included in our Markov model: well (state 1), minor toxicity (state 2), major toxicity (state 3), quitting adjuvant chemotherapy (state 4), and death due to adjuvant chemotherapy (state 5). Transitions among the 5 states were assumed to be Markovian. Costs were calculated from the perspective of the Chinese health-care payer. The utility data were taken from published studies. Sensitivity analyses were used to explore the impact of uncertainty factors in this cost-effectiveness analysis. RESULTS: Total direct costs of FOLFOX4 and XELOX per patient were $ 19884.96 +/- 4280.30 and $ 18113.25 +/- 3122.20, respectively. The total fees related to adverse events per patient during the entire treatment were $ 204.75 +/- 16.80 for the XELOX group, and $ 873.72 +/- 27.60 for the FOLFOX4 group, and the costs for travel and absenteeism per patient were $ 18495.00 for the XELOX group and $ 21,352.68 for the FOLFOX4 group. The base-case analysis showed that FOLFOX4 was estimated to produce an additional 0.06 in quality adjusted life years (QALYs) at an additional cost of $ 3950.47 when compared to the XELOX regimen over the model time horizon. The cost per QALY gained was $ 8047.30 in the XELOX group, which was $ 900.98 less than in the FOLFOX4 group ($ 8948.28). The one way sensitivity analysis demonstrated that the utility for the well state and minor toxicity state greatly influenced the incremental cost-effectiveness ratio of FOLFOX4. CONCLUSION: In term of cost-comparison, XELOX is expected to dominate FOLFOX4 regimes; Therefore, XELOX provides a more cost-effective adjuvant chemotherapy for colon cancer patients in China. c 2014 Baishideng Publishing Group Inc. All rights reserved. 展开更多
关键词 cost-effectIVENESS Adjuvant chemotherapy Colon cancer FOLFOX XELOX
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日本成本-效用评估制度对我国医保目录药品准入定价的启示
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作者 王琳宁 杨盟雨 +1 位作者 虞杰 路云 《中国药房》 CAS 北大核心 2024年第8期901-905,共5页
日本于2019年开始正式对药品施行成本-效用评估政策,实现了不同品种的价格定量化调整。在评估品种上,日本采用分级分类手段遴选预计年销售额较大的品种,并根据预先设定的增量成本-效果比(ICER)阈值对现有价格构成中的溢价部分和利润部... 日本于2019年开始正式对药品施行成本-效用评估政策,实现了不同品种的价格定量化调整。在评估品种上,日本采用分级分类手段遴选预计年销售额较大的品种,并根据预先设定的增量成本-效果比(ICER)阈值对现有价格构成中的溢价部分和利润部分进行调整,从而解决了由主观差异导致的调整标准和幅度不一致的问题;同时,该政策对部分药品进行了特殊考量,给予评估豁免或提高ICER阈值的激励措施。在价格调整机制上,日本针对药品价格加算部分和营业利润部分,结合阶梯式ICER阈值和量化公式,构建了有升有降的价格调整机制。我国在医保目录准入环节,仍存在部分药品价格形成的量化机制不够明确、价格修正措施不完善、沟通环节滞后等问题。建议我国可在医保准入阶段提高特殊人群用药的ICER阈值,量化调增、调减的标准和幅度,对提交高质量疗效证据的企业给予价格激励,前置企业沟通环节,就降价幅度过大的准入品种探索建立价格兜底机制,以进一步提升我国医保目录准入过程中药品定价的科学性和公平性。 展开更多
关键词 医保目录 药品准入 定价 医保谈判 成本-效用评估 阈值
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Cost-effectiveness analysis of transcatheter arterial chemoembolization with or without sorafenib for the treatment of unresectable hepatocellular carcinoma 被引量:4
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作者 Rong-Ce Zhao Jing Zhou +4 位作者 Yong-Gang Wei Fei Liu Ke-Fei Chen Qiu Li Bo Li 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2017年第5期493-498,共6页
BACKGROUND: Transcatheter arterial chemoembolization(TACE) and TACE in combination with sorafenib(TACEsorafenib) have shown a significant survival benefit for the treatment of unresectable hepatocellular carcinoma(HCC... BACKGROUND: Transcatheter arterial chemoembolization(TACE) and TACE in combination with sorafenib(TACEsorafenib) have shown a significant survival benefit for the treatment of unresectable hepatocellular carcinoma(HCC). Adopting either as a first-line therapy carries major cost and resource implications. The objective of this study was to estimate the relative cost-effectiveness of TACE against TACE-sorafenib for unresectable HCC using a decision analytic model.METHODS: A Markov cohort model was developed to compare TACE and TACE-sorafenib. Transition probabilities and utilities were obtained from systematic literature reviews, and costs were obtained from West China Hospital, Sichuan University, China. Survival benefits were reported in quality-adjusted life-years(QALYs). The incremental cost-effectiveness ratio(ICER) was calculated. Sensitive analysis was performed by varying potentially modifiable parameters of the model.RESULTS: The base-case analysis showed that TACE cost $26 951 and yielded survival of 0.71 QALYs, and TACE-sorafenib cost $44 542 and yielded survival of 1.02 QALYs in the entire treatment. The ICER of TACE-sorafenib versus TACE was $56 745 per QALY gained, which was above threshold for cost-effectiveness in China. Sensitivity analysis revealed that the major driver of ICER was the cost post TACE-sorafenib therapy with stable state.CONCLUSION: TACE is a more cost-effective strategy than TACE-sorafenib for the treatment of unresectable HCC. 展开更多
关键词 hepatocellular carcinoma transcatheter arterial chemoembolization TACE in combination with sorafenib cost-effectIVENESS
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Mass scale screening of common arboviral infections by an affordable,cost effective RT-PCR method 被引量:1
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作者 Debjani Taraphdar Arindam Sarkar Shyamalendu Chatterjee 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2012年第2期97-101,共5页
Objective:To develop a rapid,cost effective RT-PCR method for the mass scale diagnosis of such diseases at the vireraia stage to find out the actual disease burden in that area.Methods:For this purpose,cases with the ... Objective:To develop a rapid,cost effective RT-PCR method for the mass scale diagnosis of such diseases at the vireraia stage to find out the actual disease burden in that area.Methods:For this purpose,cases with the history of only short febrile illness were considered.Thus 157 samples with the history of dengue/chikungunya like illness and only 58 samples with a history of acute encephalitis syndrome(AES)were selected.Results:Out of 157 samples,42 and 74 were detected as dengue and chikungunya,respectively and out of 58 AES cases only 23 could be detected as Japanese encephalitis by this RT-PCR method.Conclusions:This cost effective RT-PCR method can detect the total positive cases that remain undetected by EL1SA method.Moreover,this method is capable to detect the viral RNA from patients'sera even after the appearance of IgM antibody at one fifth costs as compared with the other commercially available kits. 展开更多
关键词 cost effective RT-PCR METHOD MASS SCREENING ARBOVIRUS
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斯鲁利单抗联合化疗一线治疗食管鳞状细胞癌的 成本-效果分析
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作者 陈秋平 余松林 +2 位作者 孙权 邵明义 张容容 《医药导报》 CAS 北大核心 2024年第8期1270-1277,共8页
目的ASTRUM-007的结果揭示了程序性死亡配体1(PD-L1)阳性食管鳞状细胞癌(ESCC)患者的临床获益,该研究旨在从中国卫生系统的角度,分析斯鲁利单抗联合化疗一线治疗PD-L1阳性ESCC的经济性。方法建立包括无进展生存(PFS)、疾病进展(PD)和死... 目的ASTRUM-007的结果揭示了程序性死亡配体1(PD-L1)阳性食管鳞状细胞癌(ESCC)患者的临床获益,该研究旨在从中国卫生系统的角度,分析斯鲁利单抗联合化疗一线治疗PD-L1阳性ESCC的经济性。方法建立包括无进展生存(PFS)、疾病进展(PD)和死亡(D)的三状态分区生存模型,评估斯鲁利单抗联合化疗作为PD-L1阳性的晚期ESCC一线治疗方案的经济性。模型周期为2周,研究时限为终生,贴现率设置为5%。模型输出的主要结果包括总成本、质量调整生命年(QALY)和增量成本效果比(ICER)。采用单因素敏感性分析、概率敏感性分析(PSA)和情境分析来评估模型重要参数的改变对结果的影响。结果基础分析结果显示,斯鲁利单抗联合化疗方案的增量效果和增量成本分别为1.281 QALYs和266573.26元,ICER每QALY为208166.24元;单因素敏感性分析表明斯鲁利单抗的价格对ICER的影响最为敏感;PSA表明当意愿支付(WTP)阈值为3倍2022年人均国内生产总值(GDP)时,斯鲁利单抗联合化疗方案较安慰剂联合化疗方案具有显著的经济性;该研究对ASTRUM-007研究中亚组人群和斯鲁利单抗的慈善药物捐赠计划进行情境分析:在PD-L11≤综合阳性评分(CPS)<10的患者中,ICER每QALY为205056.83元;在PD-L1 CPS≥10患者中,ICER每QALY为218022.59元,ICER均值低于我国3倍人均GDP;在斯鲁利单抗患者援助计划的价格优惠下,总人群的ICER每QALY为59046.65元,PD-L11≤CPS<10的人群ICER每QALY为68294.42元,PD-L1 CPS≥10的人群ICER每QALY为44744.02元,ICER值均低于我国1倍人均GDP。结论斯鲁利单抗联合化疗比安慰剂联合化疗方案更具有经济性。 展开更多
关键词 斯鲁利单抗 程序性死亡配体1 食管鳞状细胞癌 成本-效果分析 分区生存模型
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Direct real-time PCR examination for Mycobacterium tuberculosis in respiratory samples can be cost effective 被引量:2
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作者 Bryan Joseph Renton Patricia Denise Morrell +1 位作者 Richard Peter Davidson Cooke Peter David Owen Davies 《Health》 2009年第2期63-66,共4页
Aim: To assess whether the use of direct real- time polymerase chain reaction (PCR) on smear-positive sputa can be cost-effective, by speciating mycobacteria earlier than current methods and thereby preventing unneces... Aim: To assess whether the use of direct real- time polymerase chain reaction (PCR) on smear-positive sputa can be cost-effective, by speciating mycobacteria earlier than current methods and thereby preventing unnecessary screening tests as part of the contact tracing process. Methods: A retrospective study of all patients with smear-positive sputa in a Liverpool teach-ing hospital between 2004 and 2007. All the PCRs performed on these patients were re-viewed and compared them with their myco-bacterial culture results. Unit costs for PCR, chest X-ray (CXR), tuberculin skin test (TST), interferon-gamma (IFN-γ) and medical/nursing time were conservatively estimated at £50, £11, £10, £40 and £30 respectively. The total PCR costs were compared with the costs of unnec-essary follow up of patients, negative for My-cobacterium tuberculosis (MTB) by PCR, sub-sequently confirmed to be MTB culture nega-tive. Results: 203 smear-positive patients under-went direct PCR testing. 126 (62%) patients grew Mycobacterium tuberculosis (MTB), 74 (37%) had environmental mycobacterial infection (EMI) and 3 (1%) were culture negative. Of the 126 patients’ culture positive MTB patients, 123 were PCR positive and 3 PCR negative. Of the 77 pa-tients that were culture negative for MTB, 75 were PCR negative and 2 PCR positive The sensitivity, specificity, positive and negative predictive values for direct PCR versus MTB culture were 98%, 96%, 98% and 97% respec-tively. Total costs of all PCRs performed amounted to £10,150. The cost of contact pro-cedures for PCR-negative and MTB culture- negative index cases was estimated at £19,650. This equated to a total saving of £9,500 in contact tracing costs. Conclusions: Direct PCR examination testing of smear-positive patients can be cost-effective in areas where there is a high incidence of EMI. 展开更多
关键词 TUBERCULOSIS PCR and cost effective
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厄贝沙坦氢氯噻嗪片仿制药与原研药治疗轻中度原发性高血压的成本-效果比较 被引量:1
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作者 汤雅惠 肖基达 《中国现代药物应用》 2024年第7期73-77,共5页
目的比较厄贝沙坦氢氯噻嗪片(商品名:倍悦)仿制药与厄贝沙坦氢氯噻嗪片(商品名:安博诺)原研药治疗轻中度原发性高血压的成本-效果(C/E)。方法选择88例新发轻中度高血压患者作为研究对象,采用随机数字表法分为仿制组和原研组,各44例。仿... 目的比较厄贝沙坦氢氯噻嗪片(商品名:倍悦)仿制药与厄贝沙坦氢氯噻嗪片(商品名:安博诺)原研药治疗轻中度原发性高血压的成本-效果(C/E)。方法选择88例新发轻中度高血压患者作为研究对象,采用随机数字表法分为仿制组和原研组,各44例。仿制组患者应用厄贝沙坦氢氯噻嗪片仿制药治疗,原研组患者应用厄贝沙坦氢氯噻嗪片原研药治疗。比较两组治疗效果、治疗前后血压变化、不良反应发生情况、治疗成本。结果仿制组的治疗总有效率95.45%与原研组的97.73%对比,差异无统计学意义(P>0.05)。治疗前后组内收缩压、舒张压对比差异显著(P<0.05),且治疗4、8周后两组收缩压、舒张压显著低于治疗前(P<0.05);两组治疗前后组间的收缩压、舒张压对比,差异无统计学意义(P>0.05)。仿制组的药物不良反应发生率9.09%与原研组的6.82%对比,差异无统计学意义(P>0.05)。仿制组的直接成本(52.27±9.85)元、日均费用(0.93±0.18)元均低于原研组的(374.00±103.18)、(6.68±1.84)元(P<0.05)。仿制组的C/E为0.55,优于原研组的3.83。结论厄贝沙坦氢氯噻嗪片仿制药与原研药治疗轻中度高血压的整体疗效、安全性相当,但仿制药费用更低,更适合长期用药。 展开更多
关键词 原发性高血压 厄贝沙坦氢氯噻嗪片 仿制药 原研药 成本-效果
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