Objective To investigate whether Omicron BA.1 breakthrough infection after receiving the SARS-CoV-2 vaccine could create a strong immunity barrier.Methods Blood samples were collected at two different time points from...Objective To investigate whether Omicron BA.1 breakthrough infection after receiving the SARS-CoV-2 vaccine could create a strong immunity barrier.Methods Blood samples were collected at two different time points from 124 Omicron BA.1 breakthrough infected patients and 124 controls matched for age,gender,and vaccination profile.Live virus-neutralizing antibodies against five SARS-CoV-2 variants,including WT,Gamma,Beta,Delta,and Omicron BA.1,and T-lymphocyte lymphocyte counts in both groups were measured and statistically analyzed.Results The neutralizing antibody titers against five different variants of SARS-CoV-2 were significantly increased in the vaccinated population infected with the Omicron BA.1 variant at 3 months after infection,but mainly increased the antibody level against the WT strain,and the antibody against the Omicron strain was the lowest.The neutralizing antibody level decreased rapidly 6 months after infection.The T-lymphocyte cell counts of patients with mild and moderate disease recovered at 3 months and completely returned to the normal state at 6 months.Conclusion Omicron BA.1 breakthrough infection mainly evoked humoral immune memory in the original strain after vaccination and hardly produced neutralizing antibodies specific to Omicron BA.1.Neutralizing antibodies against the different strains declined rapidly and showed features similar to those of influenza.Thus,T-lymphocytes may play an important role in recovery.展开更多
[目的]本研究运用加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者,观察分析患者的新辅助化疗毒副反应、手术效率及术后并发症发生率等,探究加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直...[目的]本研究运用加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者,观察分析患者的新辅助化疗毒副反应、手术效率及术后并发症发生率等,探究加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者有效性和安全性。[方法]选择天津市第四中心医院2021年10月—2023年2月收治可切除的局部进展期低位直肠癌患者,随机分为治疗组和对照组。对照组26例给予mFOLFOX6新辅助化疗后行腹腔镜手术治疗,治疗组在对照组基础上给予加味葛根芩连汤治疗。比较两组患者新辅助化疗相关毒副作用、手术效率、术后并发症和免疫功能等。[结果]1)新辅助化疗相关不良反应方面,治疗组骨髓抑制、恶心呕吐、腹泻以及周围神经毒性反应发生率均低于对照组(P<0.05),治疗组患者化疗结束后7 d CD3^(+)及CD4^(+)/CD8^(+)水平高于对照组(P<0.01);CD4^(+)、CD8^(+)水平低于对照组(P<0.01)。2)在手术效率及手术质量方面,治疗组在手术时间、术中出血量、住院天数、尿潴留发生率方面明显低于对照组;且术后首次肛门排气时间早于对照组,差异具有统计学意义(P<0.05或P<0.01)。3)在术后机体免疫功能方面,治疗组患者术后7 d CD3^(+)、CD4^(+)及CD4^(+)/CD8^(+)水平高于对照组;CD8^(+)水平低于对照组(P<0.01)。[结论]对于顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者,加味葛根芩连汤能降低化疗药物毒副作用,减轻免疫功能损伤,为手术创造有利条件,缩短手术时间,减少出血量,促进术后胃肠道功能快速康复,并降低尿潴留发生率。展开更多
基金funded by the Emergency prevention and cure Program of COVID-19[22ZXGBSY00010]Tianjin Medical Key Discipline Project[TJYXZDXK-50A]sponsored by Tianjin Municipal Science and Technology Bureau and Tianjin Municipal Health Commission,respectively.
文摘Objective To investigate whether Omicron BA.1 breakthrough infection after receiving the SARS-CoV-2 vaccine could create a strong immunity barrier.Methods Blood samples were collected at two different time points from 124 Omicron BA.1 breakthrough infected patients and 124 controls matched for age,gender,and vaccination profile.Live virus-neutralizing antibodies against five SARS-CoV-2 variants,including WT,Gamma,Beta,Delta,and Omicron BA.1,and T-lymphocyte lymphocyte counts in both groups were measured and statistically analyzed.Results The neutralizing antibody titers against five different variants of SARS-CoV-2 were significantly increased in the vaccinated population infected with the Omicron BA.1 variant at 3 months after infection,but mainly increased the antibody level against the WT strain,and the antibody against the Omicron strain was the lowest.The neutralizing antibody level decreased rapidly 6 months after infection.The T-lymphocyte cell counts of patients with mild and moderate disease recovered at 3 months and completely returned to the normal state at 6 months.Conclusion Omicron BA.1 breakthrough infection mainly evoked humoral immune memory in the original strain after vaccination and hardly produced neutralizing antibodies specific to Omicron BA.1.Neutralizing antibodies against the different strains declined rapidly and showed features similar to those of influenza.Thus,T-lymphocytes may play an important role in recovery.
文摘[目的]本研究运用加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者,观察分析患者的新辅助化疗毒副反应、手术效率及术后并发症发生率等,探究加味葛根芩连汤干预顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者有效性和安全性。[方法]选择天津市第四中心医院2021年10月—2023年2月收治可切除的局部进展期低位直肠癌患者,随机分为治疗组和对照组。对照组26例给予mFOLFOX6新辅助化疗后行腹腔镜手术治疗,治疗组在对照组基础上给予加味葛根芩连汤治疗。比较两组患者新辅助化疗相关毒副作用、手术效率、术后并发症和免疫功能等。[结果]1)新辅助化疗相关不良反应方面,治疗组骨髓抑制、恶心呕吐、腹泻以及周围神经毒性反应发生率均低于对照组(P<0.05),治疗组患者化疗结束后7 d CD3^(+)及CD4^(+)/CD8^(+)水平高于对照组(P<0.01);CD4^(+)、CD8^(+)水平低于对照组(P<0.01)。2)在手术效率及手术质量方面,治疗组在手术时间、术中出血量、住院天数、尿潴留发生率方面明显低于对照组;且术后首次肛门排气时间早于对照组,差异具有统计学意义(P<0.05或P<0.01)。3)在术后机体免疫功能方面,治疗组患者术后7 d CD3^(+)、CD4^(+)及CD4^(+)/CD8^(+)水平高于对照组;CD8^(+)水平低于对照组(P<0.01)。[结论]对于顺序行mFOLFOX6新辅助化疗、腹腔镜手术的低位直肠癌患者,加味葛根芩连汤能降低化疗药物毒副作用,减轻免疫功能损伤,为手术创造有利条件,缩短手术时间,减少出血量,促进术后胃肠道功能快速康复,并降低尿潴留发生率。
