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Objective@#To explore the correlation of non-coding RNA and the tumor-associated antigen midkine (MK) in SKOV3cells and the clinical significance for diagnosis of ovarian cancer. @*Methods@#The Agilent′s gene chips (miRNAs chip and lncRNAs chip) were used to analyze the differential expression of miRNAs and lncRNAs in both MK-overexpressing SKOV3-MK cells and the control SKOV3-Con cells to screen the potential biomarkers in ovarian cancer. The clinical significance of midkine in the serum and tissues samples was analyzed for the patients with ovarian cancer by quantitative PCR combined with clinical data. @*Results@#Compared with control SKOV3-con cells, MK overexpression significantly promoted the expressions of 11 miRNAs and 7 lncRNAs in SKOV3 cells (P＜0.01, ratio＞3 fold), reduced the expressions of 8 miRNAs and 13 lncRNAs (P＜0.01, ratio＜0.3). Results of qPCR showed that the expression level of miR489 was significantly lower in ovarian cancer tissues than that of the contralateral normal ovarian tissues, while HOTAIR was significantly elevated (P＜0.05). The expression level of HOTAIR in the serum of ovarian cancer patients was significantly higher than that in healthy controls group with same age (0.036±0.024 vs 0.019±0.020, P=0.002). ROC curve analysis of HOTAIR showed that the specificity was 66.7%, the sensitivity was 75.6% and the AUC value was 0.749 as a marker for serum detection of ovarian cancer when the cutoff value was 0.017 6. @*Conclusion@#Long-chain non-coding RNA HOTAIR may be served as a potential biomarker in serum of ovarian cancer patients.
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Objective@#To investigate the expression levels of long non-coding RNA LincROR in plasma and tissues of ovarian cancer patients and its value in the screening of ovarian cancer. @*Methods@#The plasma samples from 30 healthy women, 56 cases of ovarian cysts, 23 cases of endometriosis, 38 cases of endometrial carcinoma, 35 cases of cervical cancer, 42 cases of ovarian cancer, 21 cases of ovarian cancer after operation and 26 cases of ovarian cancer after chemotherapy were collected, and the expression levels of LincROR in these samples were detected by quantitative PCR. The diagnostic value of LincROR in common clinical gynecological diseases was evaluated combined with clinical data. @*Results@#The expression levels of LincROR in plasma of ovarian cancer patients (2.90± 4.42 ) were significantly higher than that in healthy women (0.23±0.28) and the patients with benign ovarian cysts (0.62±0.55, P ＜ 0.01 ). The results of ROC curve analysis showed that the diagnostic value of plasma LincROR in the screening of breast cancer was better than that of CA125, CA199, CA153, AFP and CEA. The sensitivity and specificity of combined screening of LincROR and CA125 for ovarian cancer were 89.7% and 86.7%, respectively (AUCROC=0.918, 95% CI :0.817-0.973). In addition, the expression levels of plasma LincROR in the postoperative patients were significantly lower than that in the ovarian cancer patients without any treatment (0.50±1.72 vs 2.90±4.42, P ＜0.01). The ROC curve analysis showed that plasma LincROR was more sensitive than CA125 in evaluating the efficacy of chemotherapy for ovarian cancer (AUCROC: 0.866 vs 0.738). @*Conclusion@#LincROR is expected to be an ideal biomarker for the screening of ovarian cancer, and has potential clinical value in evaluating the efficacy of chemotherapy for ovarian cancer. Combination of LincROR with CA125 may improve the sensitivity and specificity of the screening of ovarian cancer
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Objective To investigate the changes in histological characteristics and collagen content in uterosacral and cardinal ligaments of pefimenopausal women in relation to relaxation of pelvic supports.Methods Twenty-eight subjects undergoing hysterectomies were selected,in which 14 cases were perimenopausal women with relaxation of pelvic support as the relaxation group and 14 women at perimenopansal age with leomyoma,cervical cancer,adenomyosis as the control group.Samples of cardinal ligaments and uterosacral ligaments were obtained at hysterectomies,and the tissues were shced and stained bv Masson's trichrome technique.Histological characteristics of the samples were studied and immunohistochemistry assay was applied to demonstrate the contents of collagen types I andⅢ.Results (1)The collagen in uterosacral ligaments and cardinal ligaments were stained blue by tlle MaSson's trichome technique.In comparison to the control group,the relaxation group had milder positive stains of the collagen and the stains were distributed in unequal intensities.Collagen content was arranged in loose pattern.Focal arrangement of the collagen was dense but fragmented.Collagen fibers were atrophic. (2)In immunohistochemistry assay and image analysis,collagen was positive in light to deep brown areas.In the relaxation group,positive units of collagen types I and III in cardinal ligaments were 13.8±2.1 and 9.6±2.4 respectively.Positive units of coHagen types I and Ⅲ of cardinal ligaments in the control group were 27.4 ±3.5 and 17.7 ±4.0 respectively.Difierences between these two groups were statistically significant (P<O.01).In the relaxation group,positive units of collagen types I and IU in utero-sacral ligaments ligaments of the control group were 29.5 ±4.4 and 19.3 ±4.6 respectively.Differences between these two groups were statistically significant(P<0.01). Conclusions Reductions in collagen types I and Ⅲ occur in pelvic floor tissue of perimenopausal patients who suffer from pelvic support relaxation.Atrophic and degenerative changes of collagen fibers may be the basic pathological structural alteration in pelvic floor.
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Objective To evaluate the short-term efficacy of the use of Y-shaped mesh in the treatment of anterior vaginal wall cystocele and stress urinary incontinence. Methods A total of 34 women diagnosed as having anterior vaginal wall cystocele complicated with stress urinary incontinence underwent intravaginal slingplasty using a Y-shaped mesh from April 2003 to May 2006. Evaluations on symptom improvement and postoperative recurrence rate were made. Results All the patients could spontaneously void urine after catheter removal at 24 hours after operation, with the residual urine less than 100 ml. Follow-up checkups for 3~37 months (mean, 26 months) found no urinary retention, urinary tract infection, bladder dysfunction, or recurrence. Conclusions Use of Y-shaped mesh in the treatment of both anterior vaginal wall cystocele and strees urinary incontinence is feasible.