Herein,a novel method for fl uorometric detection of soybean trypsin inhibitor(SBTI)activity based on a water-soluble poly(diphenylacetylene)derivative was reported.Fluorescence quenching of the polymer via p-nitroani...Herein,a novel method for fl uorometric detection of soybean trypsin inhibitor(SBTI)activity based on a water-soluble poly(diphenylacetylene)derivative was reported.Fluorescence quenching of the polymer via p-nitroaniline,produced from the trypsin-catalyzed decomposition of N-benzoyl-DL-arginine-4-nitroanilide hydrochloride(L-BAPA),was well described using the Stern-Volmer equation.SBTI activity was quantitatively assessed based on changes in the fl uorescence intensity of the polymer.This strategy has several advantages,such as high sensitivity and ease of operation.Moreover,its applicability to other biochemical analyses is promising.展开更多
目的:探讨血小板与白细胞比值(platelet and white blood cells ratio, PWR)、血小板与淋巴细胞比值(platelet and lymphocyte ratio, PLR)、中性粒细胞与淋巴细胞比值(neutrophil to lymphocyte ratio, NLR)以及尿白细胞计数(urinary l...目的:探讨血小板与白细胞比值(platelet and white blood cells ratio, PWR)、血小板与淋巴细胞比值(platelet and lymphocyte ratio, PLR)、中性粒细胞与淋巴细胞比值(neutrophil to lymphocyte ratio, NLR)以及尿白细胞计数(urinary leucocyte count, ULEU)与接受PD-1抑制剂治疗晚期尿路上皮癌(urothelial carcinoma, UC)患者预后的关系。方法:收集78例接受PD-1抑制剂治疗晚期UC患者的临床资料,利用Kaplan-Meier法计算生存率和Log-rank检验比较不同组间的生存差异,同时采用COX回归分析预后影响因素。结果:低PLR组与高PLR组的1年生存率分别为71.98%和47.63%,差异有统计学意义(P<0.05);低NLR组与高NLR组的1年生存率分别为71.36%和48.15%,差异有统计学意义(P<0.05);PWR高低两组和ULEU状态预测UC患者生存率无显著性差异(P>0.05)。单因素回归分析结果显示,N分期、M分期、TNM分期、远处转移个数、PLR、NLR是影响晚期UC患者生存情况的危险因素(P<0.05)。多因素回归分析显示,PLR是影响接受PD-1抑制剂治疗的UC患者预后的独立因素。结论:PLR、NLR为影响接受PD-1抑制剂治疗晚期UC患者预后的独立因素,PLR高值组和NLR高值组患者的预后较PLR低值组和NLR低值组的患者差。展开更多
目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影...目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影响。方法选取2019年1月—2023年7月涟水县人民医院就诊的112例晚期NSCLC二线及以上患者为研究对象,依据治疗方法分为两组,每组56例,对照组接受二线及以上单药化疗,观察组接受PD-1/PD-L1抑制剂免疫治疗,对比两组生存质量、无进展生存期、总生存期及不良反应发生率。结果化疗4个周期后,观察组生存质量评分显著高于对照组,差异有统计学意义(P<0.05)。观察组无进展生存期、总生存期显著优于对照组,差异有统计学意义(P均<0.05)。观察组不良反应发生率显著低于对照组,且观察组高血压发生人数显著少于对照组,差异有统计学意义(P均<0.05)。结论晚期NSCLC患者二线治疗中PD-1/PD-L1抑制剂免疫治疗能提升患者生存质量,降低其不良反应发生率。展开更多
目的探讨程序性细胞死亡蛋白1(programmed cell death protein 1,PD-1)单抗联合化学药物治疗(以下简称化疗)在局部晚期非小细胞肺癌新辅助治疗中的疗效和安全性。方法回顾性分析2021年6月至2023年6月于首都医科大学附属北京友谊医院胸外...目的探讨程序性细胞死亡蛋白1(programmed cell death protein 1,PD-1)单抗联合化学药物治疗(以下简称化疗)在局部晚期非小细胞肺癌新辅助治疗中的疗效和安全性。方法回顾性分析2021年6月至2023年6月于首都医科大学附属北京友谊医院胸外科43例接受新辅助免疫治疗联合化疗的局部晚期(ⅡB~ⅢB)非小细胞肺癌患者的临床资料,评估其影像学及病理学疗效,并观察免疫相关不良反应。结果影像学疗效评价显示客观缓解率为76.7%,疾病控制率为93.0%。34例(79.1%)接受手术的患者中,R0切除率97.1%、完全病理缓解率为29.4%、主要病理缓解率为55.9%。1~2级免疫相关不良反应发生率为67.4%,3级及以上不良反应发生率为7.0%。结论新辅助PD-1单抗联合化疗治疗非小细胞肺癌疗效显著,病理缓解率及R0切除率高,免疫相关不良反应及手术并发症在可接受范围内,安全性较高。展开更多
肝细胞癌(hepatocellular carcinoma,HCC)是全球高发的恶性肿瘤。程序性死亡蛋白-1(programmed death protein-1,PD-1)/程序性死亡蛋白配体-1(programmed death protein ligand-1,PD-L1)抑制剂可通过阻断T细胞负调节信号,抑制肿瘤细胞...肝细胞癌(hepatocellular carcinoma,HCC)是全球高发的恶性肿瘤。程序性死亡蛋白-1(programmed death protein-1,PD-1)/程序性死亡蛋白配体-1(programmed death protein ligand-1,PD-L1)抑制剂可通过阻断T细胞负调节信号,抑制肿瘤细胞免疫逃逸途径,重新激活抗肿瘤免疫应答过程,成为晚期HCC治疗的新手段。然而,长期临床结果显示,采用PD-1/PD-L1抑制剂单药治疗晚期HCC的病人仍存在较高的复发率和转移率。免疫联合疗法是目前针对晚期HCC患者的新的治疗策略,其中PD-1/PD-L1抑制剂联合抗血管内皮生长因子(vascular endothelial growth factor,VEGF)药物在晚期HCC治疗中显示出了良好的疗效和安全性。PD-1/PD-L1抑制剂联合抗VEGF药物可通过参与癌症免疫循环途径抑制肝癌细胞的生长。该文就PD-1/PD-L1抑制剂联合抗VEGF药物在晚期HCC治疗中的临床研究作一综述。展开更多
The proteins and trypsin inhibitors were isolated from the seeds of different varieties/accessions of an underutilized legume, Mucuna. The crude protein content of all the germplasms of Mucuna is varied from 15% - 26%...The proteins and trypsin inhibitors were isolated from the seeds of different varieties/accessions of an underutilized legume, Mucuna. The crude protein content of all the germplasms of Mucuna is varied from 15% - 26%, showed little variation and contain higher crude protein when compared with other Mucuna species reported earlier and the pulse crops commonly consumed in India. The seeds of all the varieties of Mucuna exhibited trypsin inhibitor activity. The trypsin inhibitor activity varied from 11 - 14 TIA/mg of protein. Not much variation was observed in trypsin inhibitory activities in soaked seeds compared to dry seeds. Germination of Mucuna pruriens has been carried out and the change in the protein content and trypsin inhibitors were monitored. The protein content of the endosperm increased up to 72 hrs of germination and then decreased. The trypsin inhibitory activity decreased with increase in germination time. The trypsin inhibitor activity was decreased from 14.81 TIA/mg to 2.62 TIA/mg (82% reduction in the trypsin inhibitor activity) after 144 hrs germination.展开更多
基金The authors appreciate the support from the Zhe-jiang Province Lingyan Key R&D Project(No.2022C01177)the Zhejiang Administration for Market Regulation Eyas Program Cultiva-tion Project(No.CY2022355).
文摘Herein,a novel method for fl uorometric detection of soybean trypsin inhibitor(SBTI)activity based on a water-soluble poly(diphenylacetylene)derivative was reported.Fluorescence quenching of the polymer via p-nitroaniline,produced from the trypsin-catalyzed decomposition of N-benzoyl-DL-arginine-4-nitroanilide hydrochloride(L-BAPA),was well described using the Stern-Volmer equation.SBTI activity was quantitatively assessed based on changes in the fl uorescence intensity of the polymer.This strategy has several advantages,such as high sensitivity and ease of operation.Moreover,its applicability to other biochemical analyses is promising.
文摘目的:探讨血小板与白细胞比值(platelet and white blood cells ratio, PWR)、血小板与淋巴细胞比值(platelet and lymphocyte ratio, PLR)、中性粒细胞与淋巴细胞比值(neutrophil to lymphocyte ratio, NLR)以及尿白细胞计数(urinary leucocyte count, ULEU)与接受PD-1抑制剂治疗晚期尿路上皮癌(urothelial carcinoma, UC)患者预后的关系。方法:收集78例接受PD-1抑制剂治疗晚期UC患者的临床资料,利用Kaplan-Meier法计算生存率和Log-rank检验比较不同组间的生存差异,同时采用COX回归分析预后影响因素。结果:低PLR组与高PLR组的1年生存率分别为71.98%和47.63%,差异有统计学意义(P<0.05);低NLR组与高NLR组的1年生存率分别为71.36%和48.15%,差异有统计学意义(P<0.05);PWR高低两组和ULEU状态预测UC患者生存率无显著性差异(P>0.05)。单因素回归分析结果显示,N分期、M分期、TNM分期、远处转移个数、PLR、NLR是影响晚期UC患者生存情况的危险因素(P<0.05)。多因素回归分析显示,PLR是影响接受PD-1抑制剂治疗的UC患者预后的独立因素。结论:PLR、NLR为影响接受PD-1抑制剂治疗晚期UC患者预后的独立因素,PLR高值组和NLR高值组患者的预后较PLR低值组和NLR低值组的患者差。
文摘目的探究真实世界中程序性死亡蛋白1(Programmed Death Protein 1,PD-1)/程序性死亡蛋白配体1(Programmed Death Protein Ligand 1,PD-L1)抑制剂治疗对晚期非小细胞肺癌(Non-Small Cell Lung Cancer,NSCLC)二线及以上患者预后转归的影响。方法选取2019年1月—2023年7月涟水县人民医院就诊的112例晚期NSCLC二线及以上患者为研究对象,依据治疗方法分为两组,每组56例,对照组接受二线及以上单药化疗,观察组接受PD-1/PD-L1抑制剂免疫治疗,对比两组生存质量、无进展生存期、总生存期及不良反应发生率。结果化疗4个周期后,观察组生存质量评分显著高于对照组,差异有统计学意义(P<0.05)。观察组无进展生存期、总生存期显著优于对照组,差异有统计学意义(P均<0.05)。观察组不良反应发生率显著低于对照组,且观察组高血压发生人数显著少于对照组,差异有统计学意义(P均<0.05)。结论晚期NSCLC患者二线治疗中PD-1/PD-L1抑制剂免疫治疗能提升患者生存质量,降低其不良反应发生率。
文摘目的探讨程序性细胞死亡蛋白1(programmed cell death protein 1,PD-1)单抗联合化学药物治疗(以下简称化疗)在局部晚期非小细胞肺癌新辅助治疗中的疗效和安全性。方法回顾性分析2021年6月至2023年6月于首都医科大学附属北京友谊医院胸外科43例接受新辅助免疫治疗联合化疗的局部晚期(ⅡB~ⅢB)非小细胞肺癌患者的临床资料,评估其影像学及病理学疗效,并观察免疫相关不良反应。结果影像学疗效评价显示客观缓解率为76.7%,疾病控制率为93.0%。34例(79.1%)接受手术的患者中,R0切除率97.1%、完全病理缓解率为29.4%、主要病理缓解率为55.9%。1~2级免疫相关不良反应发生率为67.4%,3级及以上不良反应发生率为7.0%。结论新辅助PD-1单抗联合化疗治疗非小细胞肺癌疗效显著,病理缓解率及R0切除率高,免疫相关不良反应及手术并发症在可接受范围内,安全性较高。
文摘肝细胞癌(hepatocellular carcinoma,HCC)是全球高发的恶性肿瘤。程序性死亡蛋白-1(programmed death protein-1,PD-1)/程序性死亡蛋白配体-1(programmed death protein ligand-1,PD-L1)抑制剂可通过阻断T细胞负调节信号,抑制肿瘤细胞免疫逃逸途径,重新激活抗肿瘤免疫应答过程,成为晚期HCC治疗的新手段。然而,长期临床结果显示,采用PD-1/PD-L1抑制剂单药治疗晚期HCC的病人仍存在较高的复发率和转移率。免疫联合疗法是目前针对晚期HCC患者的新的治疗策略,其中PD-1/PD-L1抑制剂联合抗血管内皮生长因子(vascular endothelial growth factor,VEGF)药物在晚期HCC治疗中显示出了良好的疗效和安全性。PD-1/PD-L1抑制剂联合抗VEGF药物可通过参与癌症免疫循环途径抑制肝癌细胞的生长。该文就PD-1/PD-L1抑制剂联合抗VEGF药物在晚期HCC治疗中的临床研究作一综述。
文摘The proteins and trypsin inhibitors were isolated from the seeds of different varieties/accessions of an underutilized legume, Mucuna. The crude protein content of all the germplasms of Mucuna is varied from 15% - 26%, showed little variation and contain higher crude protein when compared with other Mucuna species reported earlier and the pulse crops commonly consumed in India. The seeds of all the varieties of Mucuna exhibited trypsin inhibitor activity. The trypsin inhibitor activity varied from 11 - 14 TIA/mg of protein. Not much variation was observed in trypsin inhibitory activities in soaked seeds compared to dry seeds. Germination of Mucuna pruriens has been carried out and the change in the protein content and trypsin inhibitors were monitored. The protein content of the endosperm increased up to 72 hrs of germination and then decreased. The trypsin inhibitory activity decreased with increase in germination time. The trypsin inhibitor activity was decreased from 14.81 TIA/mg to 2.62 TIA/mg (82% reduction in the trypsin inhibitor activity) after 144 hrs germination.
