目的:观察乙型肝炎相关原发性肝癌患者(hepatitis B virus-related primary liver cancer,H B V-P L C)发生和进展过程中外周血T、N K、B细胞数量的变化,并初步探讨T淋巴细胞减少与胸腺功能的联系.方法:收集在首都医科大学附属北京地坛...目的:观察乙型肝炎相关原发性肝癌患者(hepatitis B virus-related primary liver cancer,H B V-P L C)发生和进展过程中外周血T、N K、B细胞数量的变化,并初步探讨T淋巴细胞减少与胸腺功能的联系.方法:收集在首都医科大学附属北京地坛医院住院的73例HBV-PLC患者,50例乙型肝炎肝硬化患者(liver cirrhosis,LC),37例慢性乙型肝炎(chronic hepatitis B,CHB)患者.收集3组患者一般资料和临床生化指标.采用流式方法检测3组患者外周血中CD3^+T淋巴细胞、CD4^+T、CD8^+T、CD3-CD16^+CD56^+NK、CD3-CD19^+B的分布情况,并检测了T淋巴细胞表面CD31、CD45RA分子的表达水平.结果:与CHB和LC患者相比,HBV-PLC患者外周血中性粒细胞升高,淋巴细胞减少(P<0.001);与CHB患者相比,HBV-PLC患者外周血NK细胞计数减少(P=0.011),T淋巴细胞、CD4^+T、C D8^+T、B细胞计数减少,纯真CD4^+和CD8^+T细胞表面CD31表达降低(P<0.001).在肝癌Child、Okuda、BCLC分期中晚期比早期淋巴细胞计数、T、CD4^+T、CD8^+T计数均降低(P<0.05).结论:随着肝癌的发生和进展,HBV-PLC患者外周血抗肿瘤免疫细胞减少,这种减少与胸腺迁出功能降低有关.展开更多
In the present paper, a new difference matrix via difference operator D is introduced. Let x = (xk) be a sequence of real numbers, then the difference operatorD is defined by D(x)n =∑kn=0(-1)k(n-kn)xk,where ...In the present paper, a new difference matrix via difference operator D is introduced. Let x = (xk) be a sequence of real numbers, then the difference operatorD is defined by D(x)n =∑kn=0(-1)k(n-kn)xk,where n = 0,1,2,3,.... Several interestingproperties of the new operator D are discussed.展开更多
文摘目的:观察乙型肝炎相关原发性肝癌患者(hepatitis B virus-related primary liver cancer,H B V-P L C)发生和进展过程中外周血T、N K、B细胞数量的变化,并初步探讨T淋巴细胞减少与胸腺功能的联系.方法:收集在首都医科大学附属北京地坛医院住院的73例HBV-PLC患者,50例乙型肝炎肝硬化患者(liver cirrhosis,LC),37例慢性乙型肝炎(chronic hepatitis B,CHB)患者.收集3组患者一般资料和临床生化指标.采用流式方法检测3组患者外周血中CD3^+T淋巴细胞、CD4^+T、CD8^+T、CD3-CD16^+CD56^+NK、CD3-CD19^+B的分布情况,并检测了T淋巴细胞表面CD31、CD45RA分子的表达水平.结果:与CHB和LC患者相比,HBV-PLC患者外周血中性粒细胞升高,淋巴细胞减少(P<0.001);与CHB患者相比,HBV-PLC患者外周血NK细胞计数减少(P=0.011),T淋巴细胞、CD4^+T、C D8^+T、B细胞计数减少,纯真CD4^+和CD8^+T细胞表面CD31表达降低(P<0.001).在肝癌Child、Okuda、BCLC分期中晚期比早期淋巴细胞计数、T、CD4^+T、CD8^+T计数均降低(P<0.05).结论:随着肝癌的发生和进展,HBV-PLC患者外周血抗肿瘤免疫细胞减少,这种减少与胸腺迁出功能降低有关.
文摘In the present paper, a new difference matrix via difference operator D is introduced. Let x = (xk) be a sequence of real numbers, then the difference operatorD is defined by D(x)n =∑kn=0(-1)k(n-kn)xk,where n = 0,1,2,3,.... Several interestingproperties of the new operator D are discussed.