In this study, the immuno-response of recombinant hCG-β and natural hCGβ was comparatively investigated by using Freund's adjuvant. The results showed that, the properties and merits of the antibodies elicited b...In this study, the immuno-response of recombinant hCG-β and natural hCGβ was comparatively investigated by using Freund's adjuvant. The results showed that, the properties and merits of the antibodies elicited by both kinds of hCG-β were similar. The antisera had high affinity for binding with hCG (Kαγβ≈5.86×108/mol/L, Kαβ≈8.18×108/mol/L), and were found to be effective in inhibiting the binding of 125I-hCG to receptors in rat testes. Results also indicated that, similar to the antisera induced by natural hCG-β, the recombinant hCG-β induced antisera had capacity of neutralizing the biological activities of hCG. Recombinant hCG-β could be used as an immunogen for contraceptive vaccine.展开更多
An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical...An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical and conservative surgical management of unruptured fallopian tube EP as an effective manner to preserve tubes to prevent secondary infertility. This study was conducted between January 1, 2010, and April 30, 2024, in Ponni Hospital, Madurai. It included 319 women, out of 6248 pregnant women diagnosed with ectopic pregnancy by using an Inexecreen kit, trans-abdominal scan, trans-vaginal scan, and doubling of beta-human chorionic gonadotropin (β-HCG) in 48 hours and Magnetic Resonance Imaging (MRI). Medical and conservative surgical management were given to those patients effectively. Out of 319 patients, 62 patients (19.4%) had a ruptured ectopic pregnancy and underwent surgical treatment;257 patients (80.6%) had an unruptured ectopic pregnancy. The conservative medical management was provided to 257 patients. Out of 257 patients, 235 patients were treated by injecting methotrexate and folic acid rescue when the criteria were met. 14 patients had salpingostomy and injection methotrexate (Inj. Methotrexate) and inj. Prostaglandin F2 alpha was administered into the tubal wall to preserve tubes. 8 patients had a live ectopic pregnancy;for those patients, Inj. Methotrexate was injected into the gestational sac through ultrasound guidance. 225 out of 257 patients reached out to us to seek fertility treatment;the remaining 32 patients were not seeking fertility. All fertility-seeking patients had successful pregnancies. We lost follow-up of 12 patients in this study. Out of 213 patients who came for fertility treatment, a 76.1% success rate was achieved with live birth, the recurrent ectopic pregnancy rate was 13.6%, the miscarriage and stillbirth rates were 10.3%. 32 patients, who were not seeking fertility, had quality life without surgical scars for ectopic pregnancy and cost-effective treatment. 25 patients out of 32 had laparoscopic sterilization later, and 7 patients followed temporary contraception as per our advice. This clinical data was retrieved from medical records.展开更多
Objective To study the outcome of a multi centred post molar pregnancy serum human chorionic gonadotrophin (hCG) surveillance programme. Methods Patients recruited into the multi centred post molar serum hCG su...Objective To study the outcome of a multi centred post molar pregnancy serum human chorionic gonadotrophin (hCG) surveillance programme. Methods Patients recruited into the multi centred post molar serum hCG surveillance programme between 1988 and 1996 were studied. The clinical data were obtained from medical records and computer database. Results There were 616 patients in the study. Twenty five (11%) of 224 patients with molar pregnancy and 28 (7%) of 392 patients with partial molar pregnancy were diagnosed to have persistent trophoblastic tumour (PTT) requiring chemotherapy. Of the 53 patients treated for PTT, 58.5% received intravenous methotrexate (MTX), 22.6% received both MTX and actinomycin D, and 19% received CHAMOC, a multiple chemotherapeutic regimen. Four patients receiving single drug had to change the regimen because of poor response, and all recovered and remained well. There were 3 cases of recurrence, one in each group of patients receiving single, dual or multiple agents. One patient died because of treatment complication. The rest were well with a mean follow up of 42 months. Conclusions Post molar serum hCG surveillance is important to detecting persistent trophoblastic activity. Early treatment of PTT by the appropriate chemotherapy has a near hundred percent cure and prevents the progression of PTT into more advanced trophoblastic malignancy such as choriocarcinoma.展开更多
目的 :探索乳酸杆菌携带表达 h CGβ避孕疫苗的抗生育作用。方法 :用 PCR从短小乳酸杆菌染色体中扩增得到 S-层蛋白的信号肽序列 ,将其与 h CGβ基因连接后克隆到乳酸杆菌整合型表达载体 p Ilac的 lac启动子下游 ,得到质粒 p Ilac h CG...目的 :探索乳酸杆菌携带表达 h CGβ避孕疫苗的抗生育作用。方法 :用 PCR从短小乳酸杆菌染色体中扩增得到 S-层蛋白的信号肽序列 ,将其与 h CGβ基因连接后克隆到乳酸杆菌整合型表达载体 p Ilac的 lac启动子下游 ,得到质粒 p Ilac h CGβ,电穿孔转化干酪氏乳酸杆菌 Lb. caseiCECT5 2 76。挑选转化后的耐药菌落 ,在含红霉素培养基中培养 ,抽提其染色体 DNA,PCR及测序鉴定证实 h CGβ基因整合到 Lb.casei的基因组中。h CG放免检测上清及细胞裂解液中的 h CGβ。结果 :h CGβ基因已经整合到 Lb.casei的基因组中 ;细菌产生的目的蛋白约有 3/ 4分泌进入培养上清 ,而加入诱导剂乳糖 2 1 h后 ,上清中的蛋白浓度达到峰值 ,为 440 m IU/ m L。重组菌在无选择压力条件下培养 5 0代后仍可分泌 h CGβ。结论 :h CGβ在乳酸杆菌中得到了稳定的。展开更多
目的确定第5批绒促性素国际标准品及其效价。方法以第4批绒促性素国际标准品(编号75/589,Calibrated in International Units)与第1批完整体绒促性素国际参考试剂(编号99/688,Calibratedin Molar Units)为基准,英国国家生物制品检定所...目的确定第5批绒促性素国际标准品及其效价。方法以第4批绒促性素国际标准品(编号75/589,Calibrated in International Units)与第1批完整体绒促性素国际参考试剂(编号99/688,Calibratedin Molar Units)为基准,英国国家生物制品检定所组织并邀请包括本实验室在内的来自全球10个国家的18个实验室,采用免疫测定法(包括免疫酶测定法、放射免疫测定法、荧光免疫测定法、酶联免疫吸附法、化学发光免疫测定法)和生物测定法(包括幼小白鼠子宫增重法、幼大白鼠精囊增重法)对第5批绒促性素国际标准品2个候选品(编号:07/364,96/608)效价进行协作标定;采用热加速降解方法研究其稳定性。结果与结论英国国家生物制品检定所最终确定候选品(编号07/364)为第5批绒促性素国际标准品,其效价为177IU.安瓿-1(0.39nmol.安瓿-1),并具有良好的稳定性。展开更多
文摘In this study, the immuno-response of recombinant hCG-β and natural hCGβ was comparatively investigated by using Freund's adjuvant. The results showed that, the properties and merits of the antibodies elicited by both kinds of hCG-β were similar. The antisera had high affinity for binding with hCG (Kαγβ≈5.86×108/mol/L, Kαβ≈8.18×108/mol/L), and were found to be effective in inhibiting the binding of 125I-hCG to receptors in rat testes. Results also indicated that, similar to the antisera induced by natural hCG-β, the recombinant hCG-β induced antisera had capacity of neutralizing the biological activities of hCG. Recombinant hCG-β could be used as an immunogen for contraceptive vaccine.
文摘An ectopic pregnancy (EP) is defined as any pregnancy that occurs outside the uterine cavity. The most common site of ectopic pregnancy is the fallopian tube. The goal of this retrospective study is to address medical and conservative surgical management of unruptured fallopian tube EP as an effective manner to preserve tubes to prevent secondary infertility. This study was conducted between January 1, 2010, and April 30, 2024, in Ponni Hospital, Madurai. It included 319 women, out of 6248 pregnant women diagnosed with ectopic pregnancy by using an Inexecreen kit, trans-abdominal scan, trans-vaginal scan, and doubling of beta-human chorionic gonadotropin (β-HCG) in 48 hours and Magnetic Resonance Imaging (MRI). Medical and conservative surgical management were given to those patients effectively. Out of 319 patients, 62 patients (19.4%) had a ruptured ectopic pregnancy and underwent surgical treatment;257 patients (80.6%) had an unruptured ectopic pregnancy. The conservative medical management was provided to 257 patients. Out of 257 patients, 235 patients were treated by injecting methotrexate and folic acid rescue when the criteria were met. 14 patients had salpingostomy and injection methotrexate (Inj. Methotrexate) and inj. Prostaglandin F2 alpha was administered into the tubal wall to preserve tubes. 8 patients had a live ectopic pregnancy;for those patients, Inj. Methotrexate was injected into the gestational sac through ultrasound guidance. 225 out of 257 patients reached out to us to seek fertility treatment;the remaining 32 patients were not seeking fertility. All fertility-seeking patients had successful pregnancies. We lost follow-up of 12 patients in this study. Out of 213 patients who came for fertility treatment, a 76.1% success rate was achieved with live birth, the recurrent ectopic pregnancy rate was 13.6%, the miscarriage and stillbirth rates were 10.3%. 32 patients, who were not seeking fertility, had quality life without surgical scars for ectopic pregnancy and cost-effective treatment. 25 patients out of 32 had laparoscopic sterilization later, and 7 patients followed temporary contraception as per our advice. This clinical data was retrieved from medical records.
文摘Objective To study the outcome of a multi centred post molar pregnancy serum human chorionic gonadotrophin (hCG) surveillance programme. Methods Patients recruited into the multi centred post molar serum hCG surveillance programme between 1988 and 1996 were studied. The clinical data were obtained from medical records and computer database. Results There were 616 patients in the study. Twenty five (11%) of 224 patients with molar pregnancy and 28 (7%) of 392 patients with partial molar pregnancy were diagnosed to have persistent trophoblastic tumour (PTT) requiring chemotherapy. Of the 53 patients treated for PTT, 58.5% received intravenous methotrexate (MTX), 22.6% received both MTX and actinomycin D, and 19% received CHAMOC, a multiple chemotherapeutic regimen. Four patients receiving single drug had to change the regimen because of poor response, and all recovered and remained well. There were 3 cases of recurrence, one in each group of patients receiving single, dual or multiple agents. One patient died because of treatment complication. The rest were well with a mean follow up of 42 months. Conclusions Post molar serum hCG surveillance is important to detecting persistent trophoblastic activity. Early treatment of PTT by the appropriate chemotherapy has a near hundred percent cure and prevents the progression of PTT into more advanced trophoblastic malignancy such as choriocarcinoma.
文摘目的确定第5批绒促性素国际标准品及其效价。方法以第4批绒促性素国际标准品(编号75/589,Calibrated in International Units)与第1批完整体绒促性素国际参考试剂(编号99/688,Calibratedin Molar Units)为基准,英国国家生物制品检定所组织并邀请包括本实验室在内的来自全球10个国家的18个实验室,采用免疫测定法(包括免疫酶测定法、放射免疫测定法、荧光免疫测定法、酶联免疫吸附法、化学发光免疫测定法)和生物测定法(包括幼小白鼠子宫增重法、幼大白鼠精囊增重法)对第5批绒促性素国际标准品2个候选品(编号:07/364,96/608)效价进行协作标定;采用热加速降解方法研究其稳定性。结果与结论英国国家生物制品检定所最终确定候选品(编号07/364)为第5批绒促性素国际标准品,其效价为177IU.安瓿-1(0.39nmol.安瓿-1),并具有良好的稳定性。
