目的:探讨HBsAg阳性孕妇在孕晚期应用乙型肝炎免疫球蛋白(hepatitis B immunoglobu-lin,HBIG)可否改善其婴儿对乙型肝炎疫苗(乙肝疫苗)的免疫应答能力.方法:291例HBsAg阳性孕妇,分为HBsAg、HBeAg均阳性的A组(83例),HBsAg阳性、HBeAg阴性...目的:探讨HBsAg阳性孕妇在孕晚期应用乙型肝炎免疫球蛋白(hepatitis B immunoglobu-lin,HBIG)可否改善其婴儿对乙型肝炎疫苗(乙肝疫苗)的免疫应答能力.方法:291例HBsAg阳性孕妇,分为HBsAg、HBeAg均阳性的A组(83例),HBsAg阳性、HBeAg阴性的B组(208例),按患者知情同意的原则,A组59例、B组116例在孕晚期应用HBIG(200 U,每4周1次),为HBIG组,其余孕晚期未应用HBIG为非HBIG组.两组孕妇所生婴儿均在出生当日、1月龄分别注射乙肝疫苗5μg.检测6月龄婴儿外周血的乙型肝炎病毒血清标志物,比较与分析各组6月龄婴儿的乙型肝炎病毒携带率及抗-HBs阳转率.结果:①非HBIG组的婴儿6月龄抗-HBs阳转率在A、B组分别为38%及64%,两组间比较差异有统计学意义(P＜0.05);HBIG组6月龄婴儿抗-HBs阳转率在A、B两组分别为81%及85%,均显高于非HBIG组(P＜0.05).②孕晚期应用3次HBIG者,其6月龄婴儿HBsAg、抗-HBs阳转率与应用1～2次HBIG者比较,差异无统计学意义.结论:HBsAg阳性(尤其是HBeAg同时阳性)孕妇的婴儿对乙型肝炎疫苗的免疫反应性较低,孕晚期应用HBIG可有效提高HBsAg阳性孕妇所生婴儿对乙型肝炎疫苗的免疫应答反应.展开更多
As silatranes and its related compounds have specific structures and have been demonstrated to show a significent biological activity, eleven new C-methylsubstituted 1-ferroceneacyloxysilatranes were synthesized via t...As silatranes and its related compounds have specific structures and have been demonstrated to show a significent biological activity, eleven new C-methylsubstituted 1-ferroceneacyloxysilatranes were synthesized via the reaction of ferrocenecarboxylic acids and C-methysubstituted 1-ethoxysilatrans. They were characterized by means of IR, 1H NMR and elemental analysis. X-ray structure determination of compound 1 indicates the presence of N→Si bond with a bond length of 0.2113(4) nm. It belongs to monoclinic system, space group P2(1)/c with a=1.4050(16) nm, b=1.2758(14) nm, c=1.1196(12) nm, α=90°, β=108.598(18)°, γ=90°, Z=4.展开更多
文摘目的:探讨HBsAg阳性孕妇在孕晚期应用乙型肝炎免疫球蛋白(hepatitis B immunoglobu-lin,HBIG)可否改善其婴儿对乙型肝炎疫苗(乙肝疫苗)的免疫应答能力.方法:291例HBsAg阳性孕妇,分为HBsAg、HBeAg均阳性的A组(83例),HBsAg阳性、HBeAg阴性的B组(208例),按患者知情同意的原则,A组59例、B组116例在孕晚期应用HBIG(200 U,每4周1次),为HBIG组,其余孕晚期未应用HBIG为非HBIG组.两组孕妇所生婴儿均在出生当日、1月龄分别注射乙肝疫苗5μg.检测6月龄婴儿外周血的乙型肝炎病毒血清标志物,比较与分析各组6月龄婴儿的乙型肝炎病毒携带率及抗-HBs阳转率.结果:①非HBIG组的婴儿6月龄抗-HBs阳转率在A、B组分别为38%及64%,两组间比较差异有统计学意义(P＜0.05);HBIG组6月龄婴儿抗-HBs阳转率在A、B两组分别为81%及85%,均显高于非HBIG组(P＜0.05).②孕晚期应用3次HBIG者,其6月龄婴儿HBsAg、抗-HBs阳转率与应用1～2次HBIG者比较,差异无统计学意义.结论:HBsAg阳性(尤其是HBeAg同时阳性)孕妇的婴儿对乙型肝炎疫苗的免疫反应性较低,孕晚期应用HBIG可有效提高HBsAg阳性孕妇所生婴儿对乙型肝炎疫苗的免疫应答反应.
文摘As silatranes and its related compounds have specific structures and have been demonstrated to show a significent biological activity, eleven new C-methylsubstituted 1-ferroceneacyloxysilatranes were synthesized via the reaction of ferrocenecarboxylic acids and C-methysubstituted 1-ethoxysilatrans. They were characterized by means of IR, 1H NMR and elemental analysis. X-ray structure determination of compound 1 indicates the presence of N→Si bond with a bond length of 0.2113(4) nm. It belongs to monoclinic system, space group P2(1)/c with a=1.4050(16) nm, b=1.2758(14) nm, c=1.1196(12) nm, α=90°, β=108.598(18)°, γ=90°, Z=4.
