目的:探讨获取未成熟卵母细胞之前使用人绒毛膜促性腺激素(Human chorionic gonadotropin,HCG)能否改善未成熟卵母细胞在体外培养条件下成熟的时间、体外受精率、2细胞、4细胞发生率。方法:将HCG刺激后或未刺激所获得的小鼠生殖泡(Germi...目的:探讨获取未成熟卵母细胞之前使用人绒毛膜促性腺激素(Human chorionic gonadotropin,HCG)能否改善未成熟卵母细胞在体外培养条件下成熟的时间、体外受精率、2细胞、4细胞发生率。方法:将HCG刺激后或未刺激所获得的小鼠生殖泡(Germinal reside,GV)期卵丘-卵母细胞复合物在培养液中进行体外培养,观察未成熟卵母细胞减数分裂的恢复、核成熟、受精率以及胚胎的发育。结果:体外培养后16 h G-PR组生殖泡破裂(Germinal vesicle break down,GVBD)发生率显著高于G-UPR组(P<0.01)。体外培养后20 h G-PR组GVBD发生率明显高于G-UPR组(P<0.05)。体外培养后24 h G-PR组PBI发生率显著高于G-UPR组(P<0.01)。G-PR组受精率明显高于G-UPR组(P<0.05)。结论:HCG加快了卵母细胞的体外成熟进程,同时也增加了卵母细胞的体外受精率。展开更多
AIM： To study the relationship between the expression of human chorionic gonadotropin （HCG）, CD44v6, CD44v4/5 and the infiltration, metastasis of esophageal squamous cell carcinoma. METHODS： By labeled streptavidi...AIM： To study the relationship between the expression of human chorionic gonadotropin （HCG）, CD44v6, CD44v4/5 and the infiltration, metastasis of esophageal squamous cell carcinoma. METHODS： By labeled streptavidin-biotin technique, the expressions of HCG, CD44v6, and CD44v4/5 in 42 patients with esophageal squamous cell carcinoma were examined. RESULTS： The positive rate of HCG expression in patients with lymph node metastasis was 85.71% （18/21）, higher than that （57.14%, 12/21） in those without lymph node metastasis （P〈0.05）. The positive rate of CD44v6 expression was 71.43% （15/21） in lymph node metastasis group, and 38.09% （8/21） in nonmetastasis group; there was a significant difference between the two groups （P〈0.05）. The positive rate of CD44v4/5 expression was 76.19% （16/21） in lymph node metastasis group, and 42.86% （9/21） in non-metastasis group; there was also a significant difference between them （P〈0.05）. From grade Ⅰ to grade Ⅲ in differentiation, the positive rate of HCG expression was 84.62% （11/13）, 70.59% （12/17） and 58.33% （7/12）, respectively, there was no significant difference among them （P〉0.05）. The positive rate of CD44v6 expression in grades Ⅰ-Ⅲ of cancer tissues was 76.92% （10/13）, 52.94% （9/17）, and 33.33% （4/12） respectively; there was no significant difference among them. The positive rate of CD44v4/5 expression in grades Ⅰ-Ⅲ of cancer tissues was 69.23% （9/13）, 64.71% （11/17）, and 41.67% （5/12） respectively; there was no significant difference among the three groups. There was no correlation between the positive rates of HCG and CD44v6, CD44v4/5 expression. Cancer cells in carcinomatous emboli and those infiltrating into vascular wall strongly expressed HCG, CD44v6, and CD44v4/5. CONCLUSION： Expression of HCG, CD44v6, and CD44v4/5 in esophageal squamous cell carcinoma is related to its infiltration and metastasis. HCG, CD44v6, and CD44v4/5 have different effects on the infiltration and metastasis of esophageal squamous cell carcinoma.展开更多
文摘目的:探讨获取未成熟卵母细胞之前使用人绒毛膜促性腺激素(Human chorionic gonadotropin,HCG)能否改善未成熟卵母细胞在体外培养条件下成熟的时间、体外受精率、2细胞、4细胞发生率。方法:将HCG刺激后或未刺激所获得的小鼠生殖泡(Germinal reside,GV)期卵丘-卵母细胞复合物在培养液中进行体外培养,观察未成熟卵母细胞减数分裂的恢复、核成熟、受精率以及胚胎的发育。结果:体外培养后16 h G-PR组生殖泡破裂(Germinal vesicle break down,GVBD)发生率显著高于G-UPR组(P<0.01)。体外培养后20 h G-PR组GVBD发生率明显高于G-UPR组(P<0.05)。体外培养后24 h G-PR组PBI发生率显著高于G-UPR组(P<0.01)。G-PR组受精率明显高于G-UPR组(P<0.05)。结论:HCG加快了卵母细胞的体外成熟进程,同时也增加了卵母细胞的体外受精率。
文摘AIM： To study the relationship between the expression of human chorionic gonadotropin （HCG）, CD44v6, CD44v4/5 and the infiltration, metastasis of esophageal squamous cell carcinoma. METHODS： By labeled streptavidin-biotin technique, the expressions of HCG, CD44v6, and CD44v4/5 in 42 patients with esophageal squamous cell carcinoma were examined. RESULTS： The positive rate of HCG expression in patients with lymph node metastasis was 85.71% （18/21）, higher than that （57.14%, 12/21） in those without lymph node metastasis （P〈0.05）. The positive rate of CD44v6 expression was 71.43% （15/21） in lymph node metastasis group, and 38.09% （8/21） in nonmetastasis group; there was a significant difference between the two groups （P〈0.05）. The positive rate of CD44v4/5 expression was 76.19% （16/21） in lymph node metastasis group, and 42.86% （9/21） in non-metastasis group; there was also a significant difference between them （P〈0.05）. From grade Ⅰ to grade Ⅲ in differentiation, the positive rate of HCG expression was 84.62% （11/13）, 70.59% （12/17） and 58.33% （7/12）, respectively, there was no significant difference among them （P〉0.05）. The positive rate of CD44v6 expression in grades Ⅰ-Ⅲ of cancer tissues was 76.92% （10/13）, 52.94% （9/17）, and 33.33% （4/12） respectively; there was no significant difference among them. The positive rate of CD44v4/5 expression in grades Ⅰ-Ⅲ of cancer tissues was 69.23% （9/13）, 64.71% （11/17）, and 41.67% （5/12） respectively; there was no significant difference among the three groups. There was no correlation between the positive rates of HCG and CD44v6, CD44v4/5 expression. Cancer cells in carcinomatous emboli and those infiltrating into vascular wall strongly expressed HCG, CD44v6, and CD44v4/5. CONCLUSION： Expression of HCG, CD44v6, and CD44v4/5 in esophageal squamous cell carcinoma is related to its infiltration and metastasis. HCG, CD44v6, and CD44v4/5 have different effects on the infiltration and metastasis of esophageal squamous cell carcinoma.
