1.Progress on serum tumor biomarkers of endometrial carcinoma
Journal of International Oncology 2014;41(5):364-367
Serum tumor biomarkers are significant for the early diagnosis and treatment,preoperative evaluation,prognosis prediction and relapse surveillance of endometrial carcinoma.Recently,serum CA125 and human epididymal secretory protein 4 are widely recognized as closely related with staging,metastasis and prognosis of endometrial cancer.In addition,the serum miRNAs are characterized by their features of high stability and specificity.Omics studies will be helpful for the general assessment of the initiation and progression of endometrial cancer.Insights into these two aspects will facilitate the identifications of new biomarkers with higher sensitivity and specificity for endometrial carcinoma.
2.Tumor Susceptibility and Digestic System Tumor Susceptible Gene
Basic & Clinical Medicine 1999;19(5):394-400
The carcinogenesis and development is a progress of multi-gene alterations in the human gastric cancer (HGC).In order to determine the relation between the aberration of these genes and gastric cancer,we chose c-met (7q31)、hMLH1 (3p21)、E-cadherin (16q22.1) and HLA loci DQA1、DR2、DR3、DR4、DR7、DR9 and detected their changes in 32 tumor specimens of intestinal type HGC and 4 cell lines of gastric cancer by performing analysis of SSP/PCR、PCR/SSCP and MSI technigues.Our data show that none point mutation was detected in c-met gene.We examined two microsatellites loci D3S1298 and D3S1561 in hMLH1 gene and detected that 6 cases retain MSI (Microsatellite Instability) and 2 cases of LOH (Loss of Heterozygosity) at D3S1298 and 2 cases of MSI at D3S1561.We also examined E-cadherin gene at two microsatellites loci D16S3083 and D16S3095 close to the gene and detected that 5 cases retain MSI and 1 case of LOH at D16S3083 and no change at D16S3095.The point mutation incidence of HLA-DR4 loci is 9/20 (45%),higher than the other loci in HLA-Ⅱ.High frequent deletion,expression deregulation and methylation of mts1/p16 gene were detected in cell lines and solid tumors from human gastric cancer patients. Our data showed that the point mutation of c-met gene is not the main pattern of alteration in intestinal type HGC that is consistent with the previous results.E-cadherin and hMLH1 are related to intestinal type HGC but whether they are susceptibility gene still need further study.The point mutation of the HLA-Ⅱ loci DR4 is closely related to intestinal type HGC.Methylation of mts1/p16 gene 5 CpG island might be plays an important role in the carcinogenesis in HGC.
3.EFFECTS OF SELENIUM, VITAMIN A AND E ON HUMAN BREAST CANCER CELL PROLIFERATION
Kaihua LAI ; Ruifang LU ; Dadao XU
Acta Nutrimenta Sinica 1956;0(01):-
The study was conducted in vitro with human breast cancer cells BCaP-37, to determine the effects of selenium, vitamin A, vitamin E and a combination of these three nutrients on cell proliferation and cellular nucleic acid content. Selenium as sodium selenite had two phases of effect on cancer cell proliferation: the low concentrations of selenium (less than 5 ?M) stimulated cell growth and increased the cellular nucleic acid content; the high concentrations (more than 5 ?M) depressed cell growth and reduced the cellular nucleic acid content with dose-dependence. Vitamin A acetate inhibited cancer cell growth significantly, but vitamin A acid inhibited to some extent, and was less effective than vitamin A acetate. Vitamin E had less inhibitory effect compared to vitamin A acetate and the inhibitory percentages were lower than 40% in all treatment groups. Combination of selenium (5 ?M) and vitamin E (20mg/L) or selenium and vitamin A acetate (2mg/L), no synergism for the reduction of the contents of cellular nucleic acids (DNA and RNA) were observed. The combination of selenium, vitamin A acetate and vitamin E at such levels reduced cellular DNA and RNA contents obviously; RNA content was significantly lower than any other treatment group and was reduced synergis-tically. It was indicated that the combination of selenium, vitamin A acetate, vitamin E was synergistic for inhibition of cell proliferation. Results also showed the reversible tendency in the inhibition of cell proliferation by combination of these three nutrients. It was suggested that combination of selenium, vitamin A and E might be benificial for the prevention and adjuvant treatment of human breast cancer.
4.Expression of T-lymphocytes and cytokines in the decidua of mifepristone with misoprostol for terminating early pregnancy
Shiyan LU ; Ruifang WU ; Zhenhai WANG
Chinese Journal of Obstetrics and Gynecology 2000;0(10):-
0 05) Conclusions Mifepristone with misoprostol for terminating early pnegnaney might be affect the expression of lymphocyte and cytokines and induce the disorder of decidual micro environment which might be the reason of medical abortion
5.Regulatory effects of mifepristone and progesterone on the secretion of interleukin-6 by cultured eutopic and ectopic endometrial cells
Jing LU ; Jing JIANG ; Ruifang WU
Chinese Journal of Obstetrics and Gynecology 2000;0(10):-
Objective To investigate the regulatory effects of mifepristone and progesterone on the secretion of interleukin 6 (IL 6) by endometrial and endometriosis cells in vitro. Methods Primary cultures of eutopic and ectopic endometrial cells from 9 cases of endometriosis were exposed to mifepristone (10 -6 mol/L, 10 -4 mol/L) and progesterone (1?10 -7 mol/L, 1?10 -5 mol/L) respectively. IL 6 secretion was analyzed in the culture medium by enzyme linked immunosorbent assay (ELISA). Results Mifepristone inhibited the IL 6 secretion of ectopic endometrial cells, with the concentrations of IL 6 was (1 914 33?799 28) ?g/L in the 1?10 -6 mol/L group ( P 0 05). Conclusion The inhibitory effects on the secretion of IL 6 by ectopic and (or) eutopic endometrium may provide one of the cellular therapeutic mechanisms of mifepristone and progesterone on endometriosis.
6.Mifepristone following conservative surgery in the treatment of endometriosis
Jing JIANG ; Jing LU ; Ruifang WU
Chinese Journal of Obstetrics and Gynecology 2000;0(12):-
Objective To compare the efficacy and safety of mifepristone and danazol after conservative surgery in the treatment of patients with endometriosis Methods Sixty one patients with endometriosis (RAFS stage Ⅰ~Ⅳ) after conservative surgery were treated orally either with mifepristone 10 mg/d (group M, n =31) or danazol 200 mg 2~3 times/d (group D, n =30) for 3 months Changes of symptoms and signs, serum reproductive hormone levels as well as side effects were assessed before and at the end of therapy Moreover, biochemical parameters of bone metabolism: urinary deoxypyridine /creatinine (UDpd/Cr),serum alkaline phosphatase (AKP) and bone gala protein (BGP) were also measured before and after treatments Results During treatment symptoms and signs were remarkbly relieved in both groups Side effects including hot flushes, irregular vaginal bleeding, back pain, weight gain and acne, were less commnly seen in group M as compared with group D Serum luteal hormone (LH), follicular stimulating homone (FSH) levels remained in the range of follicular phase in both groups So was serum estradiol (E 2) levels in group M[(204 9?45 3 ) pmol/L], but declined to postmenopausal level in group D [(94 3?33 0) pmol/L] About two weeks after discontinuation of the thrapy, serum E 2 levels [(1 221 6? 384 2) pmol/L] was not significantly different from the normal ovulatory range in group M, but significantly lower in group D [(815 1?376 0) pmo/L, P
7.Retrospective analysis of the clinical outcomes in 12 recurrent borderline ovarian tumor patients with second fertility-sparing surgery
Ruifang CHEN ; Tingting ZHU ; Hailin YU ; Jing ZHU ; Xin LU
Chinese Journal of Obstetrics and Gynecology 2014;(4):254-259
Objective To analyse the clinical practicability and significance of fertility-sparing surgery for women with recurrent borderline ovarian tumors ( BOT).Methods The clinical and pathological recordings of 12 patients suffered from recurrent BOT in the Obstetrics and Gynecology Hospital of Fudan University from Jan.2002 to Dec.2012 were analyzed retrospectively.The menstruation situation , fertility function , recurrence rate and survival after second conservative surgery were collected and analyzed .Results The average onset age of these 12 patients was 26 years, and none of them had procreation before the second operation.The pathological diagnosis were still BOT and the recurrent sites of 10 patients were still restricted to the ovaries.Of the 12 cases, 8 cases of them had normal menstruation functions and 4 cases had less menstrual volumes or longer menstrual periods.Among 6 cases desired for pregnancy after the second operation,4 cases of them were successful.The spontaneous pregnancy rate was 4/6.The mean duration of follow-up was 53 months(range:23-97 months).All recurrent BOT, three cases developed recurrence once more,two cases of them were just be hinted by B ultrasounds and only one cases was approved to be BOT again by a once more surgical pathology.But no disease related deaths occurred.Conclusions The second fertility-sparing surgery may be feasible for women with recurrent BOT who are young and strongly desired for preservation of fertility.The spontaneous pregnancy rate is satisfactory.However, carefully follow-up is still needed.
8.Histomorphometric evaluation of ridge preservation after molar tooth extraction
Yalin ZHAN ; Wenjie HU ; Tao XU ; Min ZHEN ; Ruifang LU
Journal of Peking University(Health Sciences) 2017;49(1):169-175
Objective:To evaluate bone formation in human extraction sockets with absorbed surrounding walls augmented with Bio-Oss(R) and Bio-Gide(R) after a 6-month healing period by histologic and histomorphometric analyses.Methods:Six fresh molar tooth extraction sockets in 6 patients who required periodontally compromised moral tooth extraction were included in this study.The six fresh extraction sockets were grafted with Bio-Oss(R) particle covered with Bio-Gide(R).The 2.8 mm × 6.0 mm cylindric bone specimens were taken from the graft sites with aid of stent 6 months after the surgery.Histologic and histomorphometric analyses were performed.Results:The histological results showed Bio-0ss(R) particles were easily distinguished from the newly formed bone,small amounts of new bone were formed among the Bio-Oss(R) particles,large amounts of connective tissue were found.Intimate contact between the newly formed bone and the small part of Bio-Oss(R) particles was present.All the biopsy cylinders measurement demonstrated a high inter-individual variability in the percentage of the bone,connective tissues and BioOss(R) particles.The new bone occupied 11.54% (0-28.40%) of the total area;the connective tissues were 53.42% (34.08%-74.59%) and the Bio-Oss(R) particles were 35.04% (13.92%-50.87%).The percentage of the particles,which were in contact with bone tissues,amounted to 20.13% (0-48.50%).Conclusion:Sites grafted with Bio-Oss(R) particles covered with Bio-Gide(R) were comprised of connective tissues and small amounts of newly formed bone surrounding the graft particles.
9.Radiographic evaluation of ridge preservation after molar tooth extraction:a con-trolled clinical trial
Yalin ZHAN ; Wenjie HU ; Min ZHEN ; Tao XU ; Ruifang LU
Journal of Peking University(Health Sciences) 2015;(1):19-26
Objective:To compare the bone dimensional changes following tooth extraction alone with extraction plus ridge preservation ( using deproteinized boving bone mineral Bio-Oss? and bioresorbable collagen mambrane Bio-Gide?) in periodontal compromised extraction sockets .Methods: Eighteen molars of sixteen subjects requiring tooth extraction because of periodontal destruction were enrolled in this study .The subjects were assigned to the control group ( extraction alone , EXT) or to the test group ( ridge-preservation procedure with Bio-Oss? and Bio-Gide?, RP) .Parallel periapical X-rays and cone-beam computed tomography ( CBCT ) scans were taken immediately after tooth extraction alone or plus ridge-preservation ( baseline ) and 6 months later .The changes of horizontal ridge width and vertical ridge height were assessed .Results:At the central buccal aspect , the ridge height increased 2 .9 mm in RP group, and reduced 1.0 mm in EXT group.At the distal buccal aspect , the ridge height increased 1.45 mm in RP group, and reduced 1.45 mm in EXT group.The differences between the groups reached statistical significance (P<0.05).The mean ridge width increased at the 1 mm below the crest (the horizontal ridge width was measured with grafting material at three levels at 1 mm below the most coronal aspect of the crest,HW1), which amounted to 3.40 to 5.80 mm in RP group, and 1.45 to 2.90 mm in EXT group.The mean ridge increased at the 4 mm below the crest ( the horizontal ridge width was measured with grafting material at three levels at 4 mm below the most coronal aspect of the crest ,HW4 ) , which amounted to 0.40 to 3.50 mm in RP group, and reduced 0.10 to increased 0.15 mm in EXT group.The test group and the control group were not significantly different (P>0.05).Conclusion:The ridge-preservation approach using Bio-Oss? in combination with Bio-Gide? can significantly increase vertical ridge height and horizontal ridge width after tooth extraction compared with extraction alone in periodontal compromised molars .
10.Clinical and putative periodontal pathogens’ features of different sites with probing depth reduction after non-surgical periodontal treatment of patients with aggressive periodontitis
Ruifang LU ; Xianghui FENG ; Li XU ; Huanxin MENG
Journal of Peking University(Health Sciences) 2015;(1):13-18
Objective:To evaluate the differences of clinical parameters and putative periodontal patho-gens in sites of different probing depth ( PD) reduction after non-surgical periodontal treatment in patients with aggressive periodontitis ( AgP ) .Methods: Clinical examinations including plaque index , probing depth (PD), attachment level (AL) and bleeding index (BI), and full-mouth periapical photographs were collected from 20 patients with AgP .All the patients received non-surgical periodontal treatment , including oral hygiene instruction , supra-gingival scaling , subgingival scaling and root planing ( SRP ) and were followed up for 6 months post-therapy.Gingival crevicular fluids (GCF) were collected at 1 site in each quadrant before and at the end of 6 months post-therapy .Six kinds of putative periodontal patho-gens and 6 kinds of short chain fatty acids ( SCFAs ) were detected in the GCF samples .Results: The baseline clinical parameters of PD , AL and BI , the baseline concentration of succinic acid , acetic acid , propionic acid and butyric acid , and the prevalence of Treponema denticola were significantly higher in sites with PD reduction more than 2 mm sites compared with PD reduction no more than 2 mm sites [(7.7 ±1.2) mm vs.(5.1 ±1.8) mm, (6.3 ±1.9) mm vs.(4.5 ±2.2) mm, 3.8 ±0.4 vs.3.3 ± 0.8, 1.66 mmol/L vs.1.10 mmol/L, 31.67 mmol/L vs.17.78 mmol/L, 3.31 mmol/L vs.1.95 mmol/L, 84.6%vs.56.1%, P<0.05].However, there were no significant differences in the clinical param-eters, the 6 kinds of putative periodontal pathogen detection and SCFAs concentration between the 2 groups at the end of 6 months post-treatment.In sites with PD>5 mm at the end of 6 months post-thera-py , all were found with red complex bacteria infection .Conclusion:The baseline clinical parameters are important factors in predicting PD reduction after non-surgical periodontal treatment in patients with AgP . In sites with deep pockets after non-surgical periodontal treatment , the active control of red complex bac-teria is recommended .