Objective To explore the effect of gene NDRG2 (N-myc downstream regulated gene 2) transfection on the proliferation and apoptosis of breast cancer cell. Methods Bcap37 cell line expressing low level product encoded by NDRG2 gene is transfected with recombinating adenovirus expressing high level NDRG2 gene product to improve NDRG2 gene expression level. NDRG2 expression was detected by Western blot and the proliferation activity of the cell lines was detected by MTT and flow cytometry. Results High level expression of NDRG2 inhibits cells growth and results in G_1 phase arrest in Bcap37 cell line. Compared with non-transfected Bcap37 cells and Bcap37 cells transfected by empty vector, apoptosis cells obviously increase in Bcap37 cell line transfected by recombinating adenovirus expressing high level NDRG2 gene, 12% after 48 hours and 21. 5% after 72 hours. Conclusion Overexpres-sion of NDRG2 in Bcap37 cells effectively inhibites cell proliferation and induces cell cycle arrest and apoptosis.

Purpose:To analyze the differences between prem enopausal and postmenopausal female patients with T1 primary breast cancer as to pathological classification, rate of lymphatic metastasis and some relative rec eptors, and to discuss the appropriate mode of operation to T1 breast cancer. Methods:154 patients with T1 primary breast cancer were retrosp ectively divided into premenopausal group and postmenopausal group. The clinical data of the two groups were compared. Results:There were no significant statistical differences in pr imary tumor size, but the incidence rate(62.2%) of invasive ductal cancer in po stmenopausal group was less than that(84.7%) of postmenopausal group(P

Objective To explore the effect of gene NDRG2(N-myc downstream regulated gene 2) transfection on the proliferation and apoptosis of breast cancer cell.Methods Bcap37 cell line expressing low level product encoded by NDRG2 gene is transfected with recombinating adenovirus expressing high level NDRG2 gene product to improve NDRG2 gene expression level. NDRG2 expression was detected by Western blot and the proliferation activity of the cell lines was detected by MTT and flow cytometry. Results High level expression of NDRG2 inhibits cells growth and results in G1 phase arrest in Bcap37 cell line. Compared with non-transfected Bcap37 cells and Bcap37 cells transfected by empty vector,apoptosis cells obviously increase in Bcap37 cell line transfected by recombinating adenovirus expressing high level NDRG2 gene,12% after 48 hours and 21.5% after 72 hours. Conclusion Overexpression of NDRG2 in Bcap37 cells effectively inhibites cell proliferation and induces cell cycle arrest and apoptosis.

Objective:To analyze and discuss the influence of medical ethics on the quality of life and treatment compliance for breast cancer patients in clinical application, and to expound the positivehidden value of medical ethics to dealing with the doctor-patient relationship. Methods:176 cases of breast cancer patients in a hospital from December, 2012 to December, 2014 were selected to participate in this study. They were divided into experi-mental group (n=88) and control group (n=88) using the sequence number. The subjects in control group were treated according to the NCCN guidelines for breast cancer, while the experimental group was treated with medical ethics on the basis of the routine methods. The effect and safety were explored. Result:In evaluation of the quality of life, it was found that the excellent rate of patients in the experimental group was significantly higher than those in the control group (89. 8% vs. 68. 2%, P<0. 05). The incidence of complications in the study group was sig-nificantly lower than the control group ( P<0 . 05 ) . The complication incidence in the experimental group was sig-nificantly lower than that of the control group (73. 9% vs. 96. 6%,P<0. 05). Conclusion:Medical ethics has a great influence on the quality of life and treatment compliance for breast cancer patients, and its application has a positive indirect and clinical utility.

Objective:To clone the human cell death-inducing DFF45-like effectors 3(CIDE3) full length cDNA for construction the eukaryotic expression vector pcDNA3.l(+)-CIDE3 and to study its bioactivity.Methods:① Total RNA was extracted from human white adipose tissues and the desired cDNA fragment was obtained by RT-PCR.After the fragment had being inserted into an eukaryotic expression vector pcDNA3.l(+),the resulted recombinant plasmid pcDNA3.l(+)-CIDE3 was transformed into DH5?.The positive clone was selected and confirmed to contain full length of CIDE3 cDNA by agarose gel and DNA sequence analysis.②After the pcDNA3.l(+)-CIDE3 plasmid was transfected into HeLa cells under lipofectamine mediation,the effect of target gene expression on growth of HeLa cells was analysed by TUNEL staining. Results:① The recombinant eukaryotic expression plasmid pcDNA3.l(+)-CIDE3 was constructed successfully and the sequence of CIDE3 was consistent with that of genebank.②After transfected pcDNA3.l(+)-CIDE3,HeLa cells presented distinguished apoptosis(about 15%),compared with that of transfected plasmid pcDNA3.l(+)(

Objective To evaluate the clinical benefits and safety of endoscopic thyroidectomy via bilat -eral-nipple approach and breast approach by comparison with conventional open thyroidectomy .Methods 59 pa-tients undergoing open thyroidectomy , 76 patients undergoing endoscopic thyroidectomy via breast approach , and 122 patients undergoing endoscopic thyroidectomy via bilateral-nipple approach were retrospectively analyzed . Patients'age, operation duration, intraoperative blood loss, the first day drainage volume after operation , postop-erative hospital stay , the incidence of complications , pain visual analogue score ( VAS) , postoperative satisfaction rate as well as the evaluation of cosmetic results were compared among different groups .Results No significant difference was observed in the intraoperative blood loss and the postoperative hospital stay among different groups . The operation duration and the first day drainage volume after operation in the endoscopic thyroidectomy groups ((103.5 ±26.2)min vs (108.1 ±23.9)min,(106.5 ±31.0)ml vs (117.4 ±38.8)ml)were significantly high-er than those in the open thyroidectomy group((65.3 ±22.4)min and (50.5 ±23.8)ml)(P<0.05, respective-ly).No significant difference was observed in the complication incidence among different groups .On the first day after operation, VAS of the endoscopic thyroidectomy groups (2.8 ±0.4 vs 2.9 ±0.4)was significantly lower than that of the open thyroidectomy group(3.8 ±0.6)(P<0.05, respectively), even though on the second and the third day no significant difference was observed among different groups .Besides, postoperative satisfaction rate and the evaluation of cosmetic results in endoscopic thyroidectomy groups were significantly higher than those in the open group(P<0.05, respectively).Furthermore, 90 days after operation, the satisfaction rate and the eval-uation of cosmetic results in the endoscopic thyroidectomy group through bilateral -nipple approach (96.7%,8.8 ± 0.9)were significantly higher than those in the endoscopic thyroidectomy group through breast approach (92.1%, 7.3 ±0.7)(P<0.05, respectively).Conclusions Endoscopic thyroidectomy is a feasible and safe procedure . Endoscopic thyroidectomy through bilateral-nipple approach has a higher long-term satisfaction rate as well as bet-ter cosmetic results , which is an ideal choice of thyroidectomy .

Objective To explore the experience of diagnosis and surgical treatment of carotid body tumor.Methods A retrospective analysis between November 2008 and November 2015 was proceeded,the clinical data of surgical treatment for 81 patients with carotid body tumor was collected,to analyze data by SPSS19.0,and summarize the diagnosis of carotid body tumor,choice of operation methods and curative effect and complications prevention.Results Seventy-four cases underwent surgery treatment:tumors of 52 cases were simply stripped,tumors of 13 cases were resected combined with ligation of external carotid artery.Tumors of 7 cases were resected with internal and external carotid artery ligation,3 cases of whom underwent artificial blood vessel internal carotid artery end to end anastomosis.Postoperative death in 1 case of acute myocardial infarction,complicated with cerebral infarction in 2 cases,6 cases of injury of cranial nerve relieved after symptomatic treatment.No hemiplegia,aphasia and other serious complications.Tumor size and the surgery time correlation analysis:the correlation coefficient was 0.226,no significant correlation.Conclusions CTA is the most commonly used method of preoperative examination.Surgical resection is an effective method in treatment of carotid body tumor.Prevention injury of carotid artery cr internal carotid or common carotid artery and their reconstruction is the key to a successful operation.Sufficient preoperative assessment,select the appropriate operation method,intraoperative careful performance can ensure the cerebral perfusion,is the key to prevent and reduce the complications.

Objective To detect the expression of Survivin and Caspase-9 gene in Uygur breast cancer pa-tients with different HER-2 phenotypes,to find out the difference and association of the two genes and to find out the potential roles of the two genes breast cancer pathogenesis. Methods We selected 72 Uygur patients diag-nosed as breast cancer initially and they were divided into group A with HER-2 positive(n = 39)and group B with HER-2 negative(n = 33). Another 40 Uygur patients with benign breast were involved as the controls. Immunohis-tochemistry and real-time RT-PCR were used to detect the two genes,and analyze the differences and association of each gene between the groups. Results (1)The expression of Survivin gene in group A and B were higher than that in the control group. Further analysis showed that the expression of Survivin gene was enhanced in group A when compared with that in group B(P < 0.05);while even the expression of Survivin gene in group B was higher than that in the control group but no statistical difference was found(P > 0.05).(2)The expression of Caspase-9 gene in group A and B were lower than that in the control group. Real-time RT-PCR showed that the expression of Caspase-9 gene of group A was decreased when compared with that in group B(P < 0.05);While the expression of Caspase-9 gene of group B was slightly lower that of the control group but it showed no statistical significance (P > 0.05). Immunohistochemical results showed there were no statistical differences of expression of Caspase- 9 gene in group A and B and control group(all P > 0.05). The expression of Survivin and Caspase-9 gene was nega-tively associated in group A and B(P < 0.01;P < 0.05). Conclusions In Uygur patients with HER-2 positive breast cancer,the expression of Survivin gene is enhanced but that of caspase-9 gene is decreased,and they are negatively associated. Through inhabiting caspase-9 gene,Survivin gene may potentially lead to the occurrence of HER-2 positive breast cancer.

To explore the prognostic value of heat shock protein-90α (HSP-90α) plasma levels on breast cancer and non-breast malignant tumors, monitoring the response of chemotherapy, and the predictive value of cancer recurrence and metastasis. Methods: A total of 615 female patients were enrolled between June 2016 and September 2016 in Cancer Hospital, Chinese Academy of Medical Sciences, who were divided into the examination (n=389) and control (n=216) groups. The former group consisted of static (n=289) and dynamic (n=110) groups, which were analyzed by stages, histological and molecular type, and so on. The latter group in-cluded healthy people (n=103), and those with breast benign tumors (n=51) and non-breast malignant tumors (n=62). In all the plasma samples, HSP-90α was detected using a double-antibody enzyme-linked immunosorbent assay. The receiving-operating characteristic curve was used to analyze the effectiveness of plasma HSP-90α in the diagnosis of breast cancer. Wilcoxon＇s rank test and the Kruskal-Wallis test were used to analyze the association between clinical characteristics and levels of plasma HSP-90α. Results: The levels of plasma HSP-90α were significantly higher in patients with breast cancer than in healthy controls (P<0.001). When the cut-off value was set as 59.7 ng/mL for the diagnosis of breast cancer and 43.22 ng/mL for disease recurrence, the areas under the curve were 0.834 and 0.877, sensitivities were 90.3% and 95.7%, and specificities were 78.6% and 74.5%, respectively. The levels of plasma HSP-90α sig-nificantly decreased after achieving a response to neoadjuvant chemotherapy or surgery (P<0.05). Conclusions: Plasma HSP-90α has good clinical value in the diagnosis and monitoring of response and recurrence in breast cancer.