ABSTRACT
To compare and analyze the clinical treatment effect of primary pterygium with amniotic membrane transplantation, autologous corneal limbus stem cell transplantation and intraoperative application of 0. 2g/L mitomycin C.METHODS: Retrospective analysis of 232 patients who were underwent primary pterygium surgery was performed. Eighty-two cases were treated with amniotic membrane transplantation, 90 with autologous corneal limbus stem cell transplantation, and 60 with intraoperative application of 0. 2g/L mitomycin C. The postoperative recurrence and complications of three operative methods were compared.RESULTS: The recurrence rate of autologous corneal limbus stem cell transplantation and intraoperative application of 0. 2g/L mitomycin C was lower than that of amniotic membrane transplantation ( P 0. 05 ). Corneal epithelium defect, tears and photophobia were higher in 0.2g/L mitomycin C group (P0. 05). Conjunctival congestion and subconjunctival hemorrhage in three groups had no statistical difference (P>0. 05).CONCLUSlON: Compared with other two operative methods, autologous corneal limbus stem cell transplantation for primary pterygium has the advantages of lower recurrence rate and less complications.
ABSTRACT
Objective To know the expression and clinical significance of Twist1,Twist2 and E -cadherin in ovarian endometrium.Methods Immunohistochemistry was used to detect the expression of Twist1,Twist2 and E -cadherin in tissues of ovarian endometrium (EMs I -II,n =24;EMs III -IV,n =30)andnormal endometriums without endometriosis (Control,n =24).Results The expression levels of Twist1,Twist2 were significantly higher in EMs I -II (4.25 ±0.79, 3.83 ±0.96 respectively)and EMs III -IV (4.67 ±0.88,4.30 ±0.95 respectively)while the values of the control group were 3.50 ±0.83,3.54 ±0.88 respectively(both P <0.05),and the group of EMs III -IV had a higher expression of Twist2 (4.30 ±0.95)than that in EMs I -II (3.83 ±0.96)(P <0.05 ).At the same time,the expression of E -cadherin were significantly lower in EMs I -II (3.79 ±0.98)and EMs III -IV (3.57 ±0.73)than the control (4.54 ± 0.93)(P <0.05).The expression of Twist1 and Twist2 was negatively related to that of E -cadherin respectively (both P<0.05),while the expression of Twist1 was positively related to that of Twist2 (P <0.05).Conclusion Twist1,Twist2 and E -cadherin are closely related to the prevalence of endometriosis,while the ability of invasion and metastasis may be associated with the high expression of Twist1 and Twist2,as well as the low expression of E -cadherin.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of aquaporin 5(AQP5) on proliferation and migration of ectopic endometrial epithelial cells.</p><p><b>METHODS</b>AQP5 shRNA interference fragments were designed and transfected into ectopic endometrial epithelial cells stably by lentivirus technology. Fluorescence quantitative RT-PCR and Western blotting were used to detect the AQP5 mRNA and protein expression, respectively. The cell proliferation and migration were determined by using MTT method and Transwell system, respectively. Levels of phosphorylated AKT(p-AKT) and total AKT were examined by Western blotting. The nude mice model of endometriosis was constructed and the endometrial cell nodule formation was observed.</p><p><b>RESULTS</b>AQP5 shRNA transfection inhibited cell proliferation and migration compared with control group (both P<0.05). The activation of AKT in AQP5 shRNA transfected cells was lower than that in control cells (P<0.01). Compared to control group, the endometrial cells nodule formation was suppressed in mice inoculated with AQP5 shRNA-silencing ectopic endometrial epithelial cells.</p><p><b>CONCLUSION</b>Down-regulation of AQP5 expression can suppress the proliferation and migration of ectopic endometrial epithelial cells and endometrial cell nodule formation in nude mice, in which AKT pathway may be involved.</p>