1.THE METHODS FOR QUANTIFYING CAPACITY OF BACTERIA IN DISSOLVING P COMPOUNDS
Xiaorong ZHAO ; Qimei LIN ; Yanxin SUN ; Jun YAO ; Youshan ZHANG
Microbiology 2001;(1):1-4
Three bacteria of decomposing lecithin and 4 bacteria of dissolving aptite were incubated for 4 weeks with sand media respectively. Phosphorus in the sand was extracted with distilled water and measured by different methods. It was found that the bacteria have a quite different ability to release P from the materials. Part of the P released became organic phosphorus compounds in microbial tissue. However, a large amount of the P was reserved in microbial cells in a form of phosphates. The direct measurement of P in the extract by molybdenum blue method would underestimate the capacity of the bacteria to release P from the materials. The correct approach was that the sand was fumigated with chloroform and then digested with acid before the measurement by molybdenum blue method.
2.An in-vitro study of Lovastatin's biphasic effects on proliferation and adhesion of human umbilical vein endothelial cells
Guojun ZHAI ; Guoxiang DONG ; Jun ZHAO ; Weijuan YAO
Chinese Journal of General Surgery 2010;25(8):665-667
Objective To investigate Lovastatin's effects on proliferation and adhesion of human umbilical vein endothelial cells (HUVECs). Methods Culture medium with different concentration of Lovastatin(0.001、0.01、0.1、1.0、10μmol/L) was prepared, HUVECs was cultured in 96 well-plate with the different medium. AT the point of 24,72 and 120 h, the cell's activity and quantity was assessed by MTT. HUVECs was cultured with Lovastatin in 6 well-plate for 24 hours, then collected the cells by trypsin digestion. The cells were seeded in 24 well-plate with 2×104/ml and adhering for 30 mins. Then counting the adhered cells in different wells. Results At 24 h, Lovastatin (0.01、 0.1 μmol/L ) promoted proliferation of HUVECs ( P < 0.05 ); at 72 h, Lovastatin ( 1.0μmol/L) was positive accelerating cell growth(P< 0.05 ). While Lovastatin ( 10μmol/L) inhibited the proliferation significantly ( P <0.05 ) at 120 h. As HUVECs was cultured with Lovastatin for 24 hours, Lovastatin (0.1、1μmol/L) inhanced the adhesion capability of HUVECs significantly( P< 0.05 ). Conclusion Lovastatin had biphasic effects on proliferation and adhesion of HUVECs dependent on the concentration. Lovastatin (0.1、1.0 μmol/L) could promote the proliferation and adhesion, while at higher concentration ( 10.0μmol/L) it inhibits cell proliferation and adhesion.
3.Surgical treatment for pulmonary carcinoid tumors: a single-center analysis of 62 patients
Feng YAO ; Jun ZHOU ; Chenxi ZHONG ; Yu YANG ; Heng ZHAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(4):233-236
ObjectiveTo evaluate prognostic factors and the surgical results of pulmonary carcinoid tumors.Methods We retrospectively reviewed the medical records of 62 patients who were diagnosed as pulmonary carcinoid tumors between January 2000 and October 2010 at Department of Thoracic Surgery,Shanghai Chest Hospital.The following information was available for each of the 62 patients:age,sex,pathological type,and TNM stage.ResultsThere were no operative death.The 3-year and 5-year survival rates after surgery were 92.1% and 77.8%,respectively.Of the 62 patients,42 were diagnosed as typical carcinoid tumor,and among them,4 patients (8.3%) had lymph node metastases.Their 3-year and 5-year survival rates were 97.8% and 94.7%,respectively.The remaining 20 patients were diagnosed as atypical carcinoid tumor,and among them,6 patients (37.5%) had lymph node metastases.Their 3-year and 5-year survival rates were 84.4% and 58.8%,which were statistically significant compared with typical carcinoid tumor( P =0.0047 ).There was significant difference in survival rate between the patients with lymph node metastases and the patients without lymph node metastases (P =0.0048).CondusionThe main risk factors affecting survival rate of those patients who were diagnosed as pulmonary carcinoid tumors were pathological types and lymph node metastases.
4.Comparative analysis of postoperative adjuvant radio-chemotherapy and simple chemotherapy in the treatment of advanced gastric cancer
Chunmei YAO ; Keyuan XIAO ; Shumeng MA ; Jun ZHAO
Chongqing Medicine 2016;45(17):2348-2351
Objective To analyze and compare the short-term efficacy and daverse reaction of postoperative adjuvant radio -chemotherapy versus simple chemotherapy in advanced gastric cancer .Methods A total of 64 patients with locally advanced gastric cancer were randomly but equally divided into 2 groups ,experimental group and control group .The experimental group patients ini-tially receive 4-cycles chemotherapy with Capecitabine Tablets 1 000 mg /m2 ,bid ,d1 - 14 plus Oxaliplatin 130 mg/m2 ,d1 ,and then receive Capecitabine Tablets 825 mg /m2 ,bid ,d1 - 35 plus 3DCRT 45 Gy/25 Fx /5 w concurrent radio-chemotherapy .Control group patients receive 6-cycles Capecitabine plus oxaliplatin combined chemotherapy .Then we observed the disease progression time ,toxic reaction ,1 year survival rate and 2 year survival rate simultaneously in two groups .Results The follow-up rate were 100% .The comparative results are listed as follows (experimental group and control group) :the rates of Ⅰ /Ⅱ grades of nausea and vomiting were 87 .50% and 62 .50% respectively (P< 0 .05) ,other adverse reactions were not statistically significant ;1-year overall survival rate and recurrence-free survival rate were 90 .63% ,87 .50% respectively (P > 0 .05) and 84 .38% ,62 .50% respectively (P <0 .05) ;2-year overall survival rate and recurrence-free survival rate were respectively 84 .38% ,59 .38% (P< 0 .05) and 75 .00% , 50 .00% respectively (P< 0 .05) .Conclusion The advantages of 3DCRT combined with Capecitabine Tablets chemoradiotherapy can raise the successful rate of local control in patients with advanced gastric cancer after operation and 4 cycles chemotherapy .The toxic reactions are tolerable for patients .
5.Study of regulation of miR-21 on ADAMTS-1 expression
Hong ZHAO ; Pingbo YAO ; Li DAI ; Ping ZHONG ; Jun HE
The Journal of Practical Medicine 2015;31(15):2426-2429
Objective To investigate the regulatory effect of miR-21 on ADAMTS-1 expression in pulmonary fibrosis model. Methods A mouse model of pulmonary fibrosis was established using bleomycin (BLM) anda model of pulmonary fibrosis was constructed in vitro , the expression level of miR-21 was measured by quantitative real-time polymerase chain reaction (qRT-PCR), while the protein expression of ADAMTS-1 was measured by Western blot. NIH3T3 were transfected with miR-21 mimics and inhibitor in vitro and the cellular expression of ADAMTS-1 was measured by Western blot. Results Compared with the blank group , in mouse models of pulmonary fibrosis , the miR-21 expressions in lung tissues at three time points after BLM-treatment were significantly up-regulated while an evident decrease in ADAMTS-1 expressions were observed (P < 0.01). In vitro pulmonary fibrosis model , NIH3T3 cells after TGF-β1 in concentration 5 μg/L stimulation down-regulated ADAMTS-1 expression and up-regulated miR-21 expression (P < 0.01). NIH3T3 transfected with miR-21 mimics and inhibitor, up-regulated miR-21 expression, while down-regulated ADAMTS-1 protein expression. Conclusions Up-regulation of miR-21 and Down-regulation of ADAMTS-1 might be involved in the progression of pulmonary fibrosis model; miR-21 could negatively regulate ADAMTS-1 expression.
6.Application of 3D printing technology in the repair of pelvic fracture
Xinwang WEI ; Zhi YANG ; Jun YAO ; Yilong LI ; Jinmin ZHAO
Chinese Journal of Tissue Engineering Research 2015;(44):7163-7166
BACKGROUND:3D printing technology for preoperative planning has been a trend at present. Moreover, this technology has been extensively used in bone tumor resection and maxilofacial surgery, but seldom used in fracture repair. OBJECTIVE: To explore the value of 3D printing technology application in preoperative evaluation of pelvic fracture, planning and during surgery. METHODS:Pelvic fracture patients underwent preoperative CT scan. Pelvic models of the patients were printed using 3D printing technology at 1:1. Preoperative processing was conducted, including choice of approach, design of incision exposure range, design of fracture reduction, pre-implantation position of the steel plate, optimal plastic design of steel plate, measurement of screw length and design of screw direction. Matta score of pelvic fracture reduction and Majeed score of pelvic function after repair were measured during folow-up. RESULTS AND CONCLUSION:The operation time was 55-130 minutes, averagely (84.75±20.15) minutes. Intraoperative blood loss was 200-800 mL, averagely (417.00±173.58) mL. After operation, no incision infection, fracture nonunion, fixator loosening or breakage appeared. Al patients were folowed up for 8-24 months. The fracture healing time was 10-16 weeks, averagely 12.5 weeks. Fracture reduction was assessed according to Matta scoring: excelent in 15 cases, good in 3 cases, average in 2 cases, and poor in 0 case, with an excelent and good rate of 90%. Postoperative function was assessed according to Majeed scoring: excelent in 13 cases, good in 5 cases, average in 2 cases, and poor in 0 case, with an excelent and good rate of 90%. These findings showed that the application of 3D printing technology in pelvic fracture can determine the fracture’s displacement, is helpful for accurate reduction and plate modeling, reduces surgery duration and intraoperative blood loss and complication, finaly achieves better surgical result. 3D printing technology can better evaluate and plan the pelvic fracture before repair, and can be used as a routine project preparation of pelvic fracture repair.
7.THE METHODS FOR QUANTIFYING CAPACITY OF BACTERIA IN DISSOLVING P COMPOUNDS
Xiaorong ZHAO ; Qimei LIN ; Yan SUN ; Jun YAO ; Youshan ZHANG ;
Microbiology 1992;0(01):-
Three bacteria of decomposing lecithin and 4 bacteria of dissolving aptite were incubated for 4 weeks with sand media respectively. Phosphorus in the sand was extracted with distilled water and measured by different methods. It was found that the bacteria have a quite different ability to release P from the materials. Part of the P released became organic phosphorus compounds in microbial tissue. However, a large amount of the P was reserved in microbial cells in a form of phosphates. The direct measurement of P in the extract by molybdenum blue method would underestimate the capacity of the bacteria to release P from the materials. The correct approach was that the sand was fumigated with chloroform and then digested with acid before the measurement by molybdenum blue method.
8."Prelimilary Analysis on TANG Wei-yong's Experience in ""Three-solution Method"" in Treating Children Acute Tonsillitis"
Ting YAO ; Meng WANG ; Siyu CHEN ; Jun ZHAO
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):97-98
Professor TANG Wei-yong's treatment for children acute tonsillitisis from the three aspects oftreating symptoms, treating muscle and reconciliation, namely three-solution method. In addition, he modified three ancient prescriptions to create three-solution prescription. He applied the prescription into clinical practice and obtained a lot of good efficacy.
9.Signal mining for adverse drug reactions based on healthcare big data: methodology and applications
Xia ZHAO ; Yao CHEN ; Jun LIAO ; Feng YU ; Sheng LIN
Chinese Journal of Hospital Administration 2017;33(5):373-376
This paper presented the conventional methods for signal detection of adverse drug reactions (ADRs) and their applications, the research progress in ADRs signal mining based on healthcare big data, and briefed the methods and uses of ADRs prediction using machine learning technology in the era of healthcare big data.The conclusion was that deep learning, as a fast growing tool in machine learning, will become hotspot of research, expected to help with ADRs signal mining and rational clinical drug use.
10.Cyclin E and epidermal growth factor receptor expression and its correlation with the prognosis of breast carcinoma
Genyou YAO ; Jun RUAN ; Zhongsheng ZHAO ; Yunqin HU
Chinese Journal of General Surgery 2001;0(08):-
Objective To study the expression of cyclin E and epidermal growth factor receptor (EGFR) in breast carcinoma and their correlation with metastasis,relapse and survival time. [WT5”HZ]Methods Cyclin E and EGFR expressions at protein level were determined by immunohistochemistry technique in 110 patients with breast carcinoma. Results Of the 110 patients,cyclin E and EGFR positive expression were both in 60 (54.55%),and there was a positive relationship between cyclin E and EGFR expression (r s=0.823,P =0.001);Cyclin E and EGFR expression level were correlated with clinical stage (? 2=12.86,P =0.005;? 2=14.21,P =0.004),tumor histological grading (? 2=8.86,P =0.005;? 2=4.90,P =0.04),lymph node metastasis (? 2=10.22,P =0.001;? 2=9.62,P =0.002),ER expression (? 2=29.8,P =0.001;? 2=32.08,P =0.001) and PR expression (? 2=19.56,P =0.001;? 2=26.92,P =0.001). The rate of local relapse and distant metastasis in cases with positive cyclin E and EGFR expression were significantly higher than that in cases with negative expression (? 2=7.33,P =0.01;? 2=7.88,P =0.005);The mean survival time and 5-year survival rate in cases with positive cyclin E and EGFR was significantly shorter than that in cases with negative expression. [WT5”HZ]ConclusionCyclin E and EGFR expression can predict the relapse and metastasis of breast carcinoma. They can be used as markers of prognosis of breast carcinoma in clinical practice.