目的:探讨波及黄斑区的孔源性视网膜脱离(RRD)行巩膜扣带手术前后黄斑区三维光学相干断层扫描图像(3D-OCT)特征,分析其与视力的相关性。方法:回顾性系列病例,30例30眼波及黄斑区的RRD行巩膜扣带术治疗的临床资料,在术后2d,2wk,1、3、6mo随诊时双眼均行3D-OCT检查,观察椭圆体带(EZ)、外界膜(ELM)、黄斑区视网膜下液高度(SRFH)、黄斑中心凹视网膜厚度(CRT)的变化,分析其与术后最佳矫正视力(BCVA)的关系。结果:术前,术后2d,2wk,1、3、6mo SRFH、CRT、BCVA均有差异(P<0.01),术后SRFH、CRT都有不同程度降低,术后BCVA都有不同程度升高,组内两两对比:除SRFH(2wk vs 1mo,P>0.05)、CRT(2d vs 2wk,P>0.05)、BCVA(2d vs术前,2wk vs术前,P>0.05)无统计学意义外,其余各项间的比较均有统计学意义(P<0.05)。EZ、ELM形态可分为:A:EZ和ELM均连续(EZ+ELM+),9眼;B:EZ断裂和ELM连续(EZ-ELM+),7眼;C:EZ连续和ELM断裂:EZ+ELM-,6眼;D:EZ和ELM均断裂(EZ-ELM-),8眼,术后6mo上述4种类型的BCVA分别为0.15±0.04、0.50±0.06、0.54±0.05、0.59±0.09(F=87.210,P<0.05),两两比较:除C vs B和C vs D差异无统计学意义(P>0.05)外,其余各组间的比较差异均有统计学意义(P<0.05)。术后2d的SRF发生率为87%,术后6mo仍有46.6%患者存在持续性SRF。术后CRT与术后SRFH具有正相关关系。结论:巩膜扣带术后黄斑微结构呈动态改变,SRF影响可能表现为BCVA延迟恢复,随着SRF缓慢吸收,CRT逐渐降低,BCVA逐渐升高;ELM或EZ连续提示有较好的BCVA,而ELM断裂可能提示视觉质量更差。 相似文献
目的:进一步探讨结肠腺瘤性息肉病基因(APC基因)的失活在卵巢癌的发生、发展中的作用。方法:搜索PubMed、EMBase、Web of Science及CNKI数据库中2000年1月1日—2014年12月31日有关APC基因甲基化与卵巢上皮癌相关的文献,纳入研究均为包含病例组及对照组的随机对照试验。纳入文献采用纽卡斯尔-渥太华量表(NOS)评价标准。使用Stata 11.0软件进行OR值、异质性及发表性偏倚的相关的统计学分析。结果:共纳入9篇文献,其中包括641例卵巢癌患者和377例对照者。总病例组与总对照组的APC基因甲基化发生率差异有统计学意义(OR=6.19,95%CI:4.08~9.41,P=0.000);卵巢癌组织与正常组织的APC基因甲基化发生率差异有统计学意义(OR=5.88,95%CI:3.66~9.45,P=0.000);卵巢癌组织与良性卵巢肿瘤组织的APC基因甲基化发生率差异有统计学意义(OR=6.99,95%CI:3.12~15.64,P=0.000)。结论:APC基因甲基化可能与卵巢癌有关。 相似文献
Objective: To investigate the mRNA and protein expression of FK506-binding protein 52 (FKBP52) in the chorionic villi of patients with recurrent spontaneous abortion (RSA) and normal women during early pregnancy.
Methods: Fresh chorionic villus tissues were collected from 60 subjects. A total of 30 patients with a history of RSA were enrolled into the RSA group and 30 normal pregnant women were enrolled into the control group. The FKBP52 mRNA expression levels in chorionic villi of the RSA patients and healthy controls were measured via semiquantitative RT-PCR. The protein distribution and expression levels of FKBP52 in chorionic villi were analyzed through immunohistochemistry (IHC). The correlation between FKBP52 expression and RSA was analyzed.
Results: We demonstrated that FKBP52 mRNA is expressed in chorionic villi samples of normal pregnancy and RSA. RSA patients exhibited significantly lower FKBP52 gene expression levels compared with those in normal pregnancies (p?<?0.05). FKBP52 immunoreactivity in chorionic villi was mainly observed in trophoblast cell cytoplasm. The FKBP52 protein expression levels in the chorionic villi of RSA patients was significantly lower than in normal women during pregnancy (p?<?0.05).
Conclusions: FKBP52 protein levels were decreased in the chorionic villi of RSA patients, which indicate that the decrease in FKBP52 may be associated with RSA. The low FKBP52 mRNA expression level, which is consistent with the IHC result, may affect embryonic development and even lead to abortion. FKBP52 may be involved in the pathogenesis of RSA and new therapies that increase the FKBP52 expression may help treat RSA. 相似文献