目的探讨甲状腺乳头状癌(papillary thyroid carcinoma,PTC)术前超声及临床病理特征与侵袭性的相关性,为PTC患者手术方式选择和预后提供参考。方法回顾性分析311例PTC患者的临床特点,以病理结果为金标准,分析PTC的术前超声图像特点、临...目的探讨甲状腺乳头状癌(papillary thyroid carcinoma,PTC)术前超声及临床病理特征与侵袭性的相关性,为PTC患者手术方式选择和预后提供参考。方法回顾性分析311例PTC患者的临床特点,以病理结果为金标准,分析PTC的术前超声图像特点、临床病理特征与侵袭性表现的相关性。结果术前超声诊断颈侧区淋巴结同术后病理结果一致性较好(κ=0.554, P <0.001);术前超声诊断中央区淋巴结同术后病理结果一致性差(κ=0.006 6, P =0.863)。单因素分析显示,病灶数量、病灶大小、BRAF基因突变与甲状腺被膜侵犯相关( P <0.05);患者性别、年龄、病灶数量、病灶大小、血流、钙化、边界与淋巴结转移有相关性( P <0.05)。多因素分析显示,病灶数量、病灶大小、BRAF基因突变与被膜侵犯相关( P <0.05);患者性别、病灶大小、边界与淋巴结转移相关,差异有统计学意义( P <0.05)。结论 PTC中病灶数量、病灶大小、BRAF基因突变与被膜侵犯相关,患者性别、病灶大小、边界与淋巴结转移相关,可以为诊断提供参考。术前超声诊断PTC中央区淋巴结转移准确性差,PTC应常规清扫中央区淋巴结。展开更多
Spermatogonial stem cells(SSCs) are unique stem cells in adult body that can transmit genetic information to the next generation. They have self-renewal potential and can continuously support spermatogenesis through...Spermatogonial stem cells(SSCs) are unique stem cells in adult body that can transmit genetic information to the next generation. They have self-renewal potential and can continuously support spermatogenesis throughout life of a male animal. However, the SSC population is extremely small, isolation and purification of the SSCs is challenging, especially for livestock animals. It has been confirmed that CDH1(cadherin-1, also known as E-cadherin) can be expressed in undifferentiated SSCs of mouse and rats, but it has not been verified in sheep. Here, CDH1 was found as a novel surface marker for sheep SSCs. In this paper, sheep antiCDH1 polyclonal antibodies were prepared and its activity was checked. Using the obtained antibodies and immunohistochemistry analysis, we confirmed that CDH1 can be expressed by SSCs in sheep testis.展开更多
文摘目的探讨甲状腺乳头状癌(papillary thyroid carcinoma,PTC)术前超声及临床病理特征与侵袭性的相关性,为PTC患者手术方式选择和预后提供参考。方法回顾性分析311例PTC患者的临床特点,以病理结果为金标准,分析PTC的术前超声图像特点、临床病理特征与侵袭性表现的相关性。结果术前超声诊断颈侧区淋巴结同术后病理结果一致性较好(κ=0.554, P <0.001);术前超声诊断中央区淋巴结同术后病理结果一致性差(κ=0.006 6, P =0.863)。单因素分析显示,病灶数量、病灶大小、BRAF基因突变与甲状腺被膜侵犯相关( P <0.05);患者性别、年龄、病灶数量、病灶大小、血流、钙化、边界与淋巴结转移有相关性( P <0.05)。多因素分析显示,病灶数量、病灶大小、BRAF基因突变与被膜侵犯相关( P <0.05);患者性别、病灶大小、边界与淋巴结转移相关,差异有统计学意义( P <0.05)。结论 PTC中病灶数量、病灶大小、BRAF基因突变与被膜侵犯相关,患者性别、病灶大小、边界与淋巴结转移相关,可以为诊断提供参考。术前超声诊断PTC中央区淋巴结转移准确性差,PTC应常规清扫中央区淋巴结。
基金supported by the Program for Innovative Research of Ministry of Education, China (IRT0833)the Natural Science Foundation of Inner Mongolia, China (2009ZD05)
文摘Spermatogonial stem cells(SSCs) are unique stem cells in adult body that can transmit genetic information to the next generation. They have self-renewal potential and can continuously support spermatogenesis throughout life of a male animal. However, the SSC population is extremely small, isolation and purification of the SSCs is challenging, especially for livestock animals. It has been confirmed that CDH1(cadherin-1, also known as E-cadherin) can be expressed in undifferentiated SSCs of mouse and rats, but it has not been verified in sheep. Here, CDH1 was found as a novel surface marker for sheep SSCs. In this paper, sheep antiCDH1 polyclonal antibodies were prepared and its activity was checked. Using the obtained antibodies and immunohistochemistry analysis, we confirmed that CDH1 can be expressed by SSCs in sheep testis.