1.Advances in prophylactic bilateral salpingectomy
Journal of Medical Postgraduates 2015;(3):333-336
Ovarian cancer accounts for more deaths than any other cancers of the female reproductive tract .There are no ef-fective screening tests .Prophylactic bilateral salpingectomy ( PBS) in standard hysterectomy in premenopausal women with benign con-dition may be a strategy for preventing pelvic serous cancer .To evaluate this procedure , we review the advances of the effectiveness of PBS in reducing the risk of malignant or benign pelvic pathologies , surgical or perioperative complications as well as the effects of sal-pingectomy on ovarian function .
2.HPLC-UV-ELSD characteristic figure and chemical pattern recognition of Panacis Quinquefolii Radix.
Liang DONG ; Cuiying ZHANG ; Shilin CHEN
Acta Pharmaceutica Sinica 2011;46(2):198-202
The paper is to report the establishment of a method of characteristic figure analysis for the quality control of Panacis Quinquefolii Radix. Application of HPLC-UV-ELSD techniques was connected in series and applied. The separation was carried out on the Agilent Extend-C18 (250 mm x 4.6 mm, 5 microm) column. The mobile phase consisted of water and acetonitrile with gradient elution. The flow rate was 1.0 mL x min(-1) and the wavelength of measurement was 203 nm. The temperature of drift tube was maintained at 106.5 degrees C and the flow rate of air was set at 2.9 L x min(-1). Twenty batches of the Panacis Quinquefolii Radix were determined. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) were applied to study on the HPLC characteristic figure and chemical pattern recognition. The HPLC-UV and HPLC-ELSD characteristic figure of Panacis Quinquefolii Radix was developed, the ginsenosides Rg1, Re, Rb1, Rc, Rb2, Rb3, Rd and the pseudoginsenoside F11 were identified. This method is accurate and reliable, and it can be used to control the quality of the Panacis Quinquefolii Radix.
3.Short-term influence on ovarian reserve in premenopausal women with hysterectomy plus salpingectomy
Cuiying CHEN ; Keli YOU ; Guandi CHEN ; Shuyan WU ; Zhigang LI
Journal of Medical Postgraduates 2017;30(1):83-87
Objective The risk of ovarian/pelvic serous cancer can be reduced by prophylactic bilateral salpingectomy ( PBS) at the time of hysterectomy .This study was to evaluate the short-term influence of PBS plus hysterectomy on ovarian reserve in premenopausal women . Methods We retrospectively analyzed the clinical data about 60 premenopausal women treated by total lapa-roscopic hysterectomy ( TLH) for benign indications , 30 undergoing PBS at the same time ( the experimental group ) while the other 30 with the ovary preserved ( the control group ) .We compared the levels of FSH, LH, E2, and anti-Müllerian hormone ( AMH) and the inci-dence of peri-menopausal symptoms between the two groups of patients before and at 1 and 3 months after operation . Results Statistically significant differences were not observed between the two groups in the such baseline clinical characteristics as age , gravidity, parity, men-strual cycle, comorbidity, diagnosis, comorbidities, and history of abdominal surgery (P>0.05), nor in the AMH level at the baseline ([1.08±0.08] vs [1.04±0.10] ng/mL) or at 1 month ([0.86± 0.44] vs [0.81±0.48] ng/mL) or 3 months postoperatively ([0.84±0.94] vs [0.68±0.42] ng/mL) (F=0.247, P=0.746).Howev-er, the mean level of AMH was markedly reduced at 1 and 3 months after operation as compared with the baseline ( P<0.05) , though with no significant difference between 1 and 3 months ( P>0.05) .There were not any statistically significant differences in the levels FSH, LH, and E2 between the two groups before or at 1 and 3 months after surgery (P>0.05), nor in the incidence rates of peri-menopausal symptoms at 1 month (6.7%vs 3.3%, P>0.05) or 3 months postoperatively (10.0%vs 6.7%, P>0.05). Conclusion PBS at the time of total hysterectomy in premenopausal women does not affect ovarian reserve in the short term .The level of AMH has a higher sensitivity than those of FSH , LH and E2 in the assessment of postoperative ovarian function .
4.UPLC fingerprint for quality assessment of ginsenosides of ginseng radix et rhizoma.
Cuiying ZHANG ; Liang DONG ; Shilin CHEN ; Caixiang XIE ; Duanling CHANG
Acta Pharmaceutica Sinica 2010;45(10):1296-300
This paper is aimed to establish the method of fingerprint analysis of chemical constituents by reversed-phase ultra-performance liquid chromatography (UPLC) for the quality control of the roots and rhizomes of Panax ginseng (Ginseng Radix et Rhizoma). The method was performed on a ACQUITY UPLC BEH C18 (50 mm x 2.1 mm ID, 1.7 microm) with a mixed mobile phase of water and acetonitrile in a gradient mode. The flow rate was 0.3 mL x min(-1) and the wavelength of measurement was 203 nm. Eleven batches of the Ginseng Radix et Rhizoma were determined. The UPLC chromatographic fingerprints of chemical constituents were established from the eleven batches of the Ginseng Radix et Rhizoma and showed fifteen characteristic common peaks, among which fifteen peaks were recognized and nine compounds (ginsenosides Rg1, Re, Rf, Rg2, Rb1, Rc, Rb2, Rb3 and Rd) were determined by comparison with chromatographic behaviors and UV spectra of the authentic compounds. The eleven batches of samples were classified as two clusters by hierarchical clustering analysis (HCA) and principle component analysis (PCA), and six samples were confirmed to establish the mutual model. The quality was assessed by similarity evaluation system for chromatographic fingerprint of TCM (2004B Version). The convenient and high specific method can be used to identify and evaluate the quality of the Ginseng Radix et Rhizoma.
5.Risk factor analyses of positive margins of conization specimen and post-cone residual disease in patients with cervical intraepithelial neoplasia grade 3
Yang YANG ; Keli YOU ; Cuiying CHEN ; Zhigang LI
Journal of Medical Postgraduates 2015;(6):613-617
[Abstract ] Objective Positive margins of conization specimen for cervical intraepithelial neoplasia grade (CIN)3 is a high risk factor of continuous cervical lesions or progress to early invasive carcinoma .The aim of this study was to evaluate the risk factors of positive margins of conization specimen and post-cone residual disease in hysterectomy specimens following conization for CIN 3. Methods Clinical data from 218 patients with CIN 3 underwent hysterectomy after conization from 2001 to 2013 were analyzed retro-spectivly.Multi-factors logistic regression was performed to determine the independent risk factors for positive margins of conization specimen and post-cone residual disease. Results Fifty five cases(25.2%) had positive margin of conization specimen , and the independent risk factors were unsatisfactory colposcopy (OR:5.18,95%CI:2.49-11.10), width of conization specimen smaller than 2 cm (OR:7.68,95%CI:2.31-28.10) and pathology of CIN3 with carcinoma in situ (OR:4.38,95%CI:1.67 -12.10).Forty seven patients (21.6%) had post-cone residual disease , and the independ-ent risk factors were length of conization specimen smaller than 1.5 cm (OR:2.45,95%CI:1.12-5.69), pathology of CIN3 with carci-noma in situ (OR:4.96,95%CI:2.17-11.70) and status of coniza-tion margins (OR:4.34,95%CI:1.95-9.78). Conclusion The satisfaction of colposcopic examination, conization specimen di-ameters including width and length , CIN3 with carcinoma in situ and status of conization margins could contribute to positive margins of conization or residual disease in subsequent hysterectomy specimens .More attention should be paid to such a group of CIN 3 patients clinically.
6.Anti-fecundity Effect of Soluble Immature Egg Antigen of Schistosoma japonicum in Mice
Cuiying LI ; Fei LI ; Xuemei JIA ; Hong WANG ; Lianyong CHEN
Chinese Journal of Parasitology and Parasitic Diseases 1997;0(06):-
0.05).The eggs per gram feces and liver, eggs in uterus per female, and egg granulomas on the liver surface were(56.68?24.78),(5 826?437),(49.94?12.53) and(10.04?1.13)/0.25 cm2, respectively in immunized group, while in control group these were(89.93?32.18),(10 016?3 541),(76.54? 19.77) and(19.22?2.45)/0.25 cm2 respectively, all with significant difference(P
7.Significance of c-Myc in prognostic evaluation of gastric mucosa associated lymphoid tissue lymphoma
Jian YANG ; Guofeng SUN ; Cuiying WANG ; Chengcong LIU ; Zhiyuan XING ; Ruiyun CHEN ; Jianjun XIN ; Chen TIAN
Tianjin Medical Journal 2017;45(7):722-725
Objective To investigate the expression of c-Myc in gastric mucosa associated lymphoid tissue (MALT) lymphoma and its implications on prognosis.Methods The clinical data of 79 patients hospitalized in our hospital from 2009 to 2015 were retrospectively analyzed.In these patients,38 patients were low-grade MALT lymphoma,20 patients were high-grade MALT lymphoma,21 patients were diffused large B cell lymphoma (DLBCL).Real-time PCR was used to detect the levels of c-Myc expression in gastric MALT tissues and pair-matched adjacent normal tissues.The relationship between the expression of c-Myc and prognosis of patients was evaluated combing with the clinical data.Results Compared with the normal tissues,the expression levels of c-Myc protein were 15.7% (6/38),25% (5/20) and 28.5% (6/21)in patients with low-grade MALT lymphoma,high-grade MALT lymphoma,and DLBCL.The relative expression levels of cMyc mRNA were gradually elevated in low-grade MALT lymphoma,high-grade MALT lymphoma and DLBCL.The tumor size and depth of invasion can influence the expression level of c-Myc.Survival analysis found that the overall survival rates and relapse-free survival rates were lower in patients with c-Myc positive expression than those of patients with negative expression (P < 0.05).Conclusion C-Myc plays a key role in the malignant transformation of gastric MALT lymphoma.
8.The preparation of self-microemulsifying dropping pills of paclitaxel and its drug release in vitro
Kexing WANG ; Cuiying QIN ; Jing HAN ; Rongli LI ; Rencai CHEN
Journal of Pharmaceutical Practice 2016;34(4):330-333
Objective The research is about optimization of preparation procedure of self-microemulsifying dropping pills of paclitaxel (PTX-SM-DP) .The drug release in vitro of PTX-SM-DP was investigated .Methods The ratio of SMEDDS and bases ,dropping distance ,temperature and speed of dripping were investigated by using the orthogonal test .The weight differ-ence of dropping pill ,hardness and roundness were evaluated to optimize the preparation conditions of PTX-SM-DP .Dissolu-tion of vitro was determined .Results The optimal preparation conditions were as follows :the ratio of SMEDDS and bases was 1∶3 ,dropping distance was 15 cm ,temperature of dripping preparation was 80 ℃ and dripping speed was 30 drops/min . Conclusion The optimized technical condition is stable and feasible .PTX-SM-DP can improve paclitaxel dissolution .
9.Optimization of the preparation process for echinacoside in Herba Cistanche enteric microspheres by response surface methodology
Cuiying QIN ; Rongli LI ; Yunjing LI ; Rencai CHEN ; Jing HAN
Journal of Pharmaceutical Practice 2017;35(5):411-414,432
Objective To prepare Herba Cistanche enteric release microspheres, optimize the preparation process and study the releasing characteristics of microspheres in vitro.Methods Ion gelatin-oven drying method was used to prepare Herba Cistanche enteric microspheres.The preparation process was optimized with the aid of a Box-Behnken design.Results The optimal preparation condition was 36.33 mg/ml of sodium alginate, 10.82 mg/ml of calcium chloride and 10.93 mg/ml of chitosan.Conclusion This technology is repeatable and feasible.The microspheres have high entrapment efficiency and good sustained release characteristics.
10.The A-204C Polymorphism in CYP7A1 Gene Affects Its Promoter Activity
Yujuan CHEN ; Sizhong ZHANG ; Cuiying XIAO ; Dachang TAO ; Guoping HE ; Yingcheng WANG ; Yunqiang LIU ; Yongxin MA
Chinese Journal of Biochemistry and Molecular Biology 2006;22(6):450-453
cholesterol 7α-hydroxylase gene ( CYP7A 1 ) plays a key role in the catabolism of cholesterol into bile acids. To investigate whether the A-204C polymorphism in CYP7A1 gene affects the gene expression,using luciferase as the reporter gene, four recombinants were constructed by inserting forward or reverse sequence with A or C allele at the polymorphism site into the promoter-less vector pGL3-basic. The constructs were then transfected into four cell lines and the luciferase activity of each expression vector was examined by dual luciferase reporter gene assay system. The results showed that activities of the forward sequence of both genotypes were higher than that of reverse sequence. Promoter activity of the recombinants with A allele was about one third lower than that with C allele. According to the analysis with TRANSFAC database, there may exist a Zic3 binding site when there is the C allele at -204. Our study indicates that the A-204 C polymorphism in CYP7A1 promoter region decreases its promoter activity and thus represses the gene expression, possibly due to the lack of a potential Zic3 binding site.