1.Advances of fulvestrant in treatment of advanced breast cancer in hormone receptor-positive postmenopausal women
China Oncology 2016;26(5):471-475
Endocrine therapy targeting estrogen pathway is one of the ifrst-line treatment choices of advanced breast cancer. Fulvestrant is a pure estrogen antagonist that blocks and downgrades estrogen receptor, which makes it effective in the treatment of progression after prior endocrine therapy. Fulvestrant 250 mg per month regime was approved for postmenopausal women with hormone-positive advanced breast cancer after progression or recurrence on antiestrogen therapy. Fulvestrant 500 mg per month regime was approved by the EMA and the US FDA in the same population based on the CONFIRM trial which proved improved efifcacy and similar tolerance compared with 250 mg regime. Recent trials were focused in the ifrst-line treatment and combination use with other therapeutics. This review discusses the advances of fulvestrant in postmenopausal women with hormone-positive advanced breast cancer.
2.The effects of tetramethylprazine on pancreatic blood flow in acute pancreatitis in rats and its therapy
Xingpeng WANG ; Yaozong YUAN ; Jiayu XU
Chinese Pharmacological Bulletin 1986;0(05):-
The effects of tetramethylpy-razine (TMP) on pancreatic blood flow and survival rate were studied in sodium tarocholate-in-duced acute pancreatitis (AP) in rats. The results showed that pancreatic relative blood flow and pancreatic tissue perfusion were significantly increased and the pathologic changes and survival rate were improved in TMP treated group-s. Plasma value of TXB2?6-Keto-PGF1? and platelet aggregation rate (PAR) were also mea-sured. We found that TMP could maintain the balance between TXA2 and PGI2 and lower the elevated PAR. It was suggested that TMP has therapeutic effect on AP in rats through improving pancreatic microcirculation; which was related to the maintanance of the balance between PGI2 and TXA2.
3.Analysis of influencing factors of mechanical ventilation time in esophageal cancer patients with lung infection after operation
Zhenjun LIU ; Jiayu WU ; Pingyao XU ; Cuanze XIONG
Chinese Journal of Primary Medicine and Pharmacy 2011;18(20):2778-2780
ObjectiveTo explore the influencing factors of mechanical ventilation time in esophageal cancer patients with lung infection after operation.Methods55 esophageal cancer patients with lung infection after operation requiring endotracheal intubation or tracheostomy and mechanical ventilation were included.According to duration of mechanical ventilation time, < 7 days for early weaned from ventilator group, > 7 days for late weaning group.60 esophageal cancer patients with lung infection after operation without mechanical ventilation served as controls.Various factors on the impact of mechanical ventilation were compared.ResultsEarly and late weaning patients were older than control group(P < 0.05), particularly in late weaning patients(P < 0.01).Compared with the control, FEV1 and MVV decreased significantly in early weaning patients(P < 0.05).NFGNB infection in late weaning patients significantly increased than in early weaning patients and the control(all P < 0.01).Logistic multivariate analysis showed that FEV1 was independent factors affecting early weaning (P < 0.01), age (P < 0.05) and NFGNB infection (P <0.01) affecting late weaning.ConclusionThe influencing factors of mechanical ventilation time in esophageal cancer patiens with lung infection after operation were FEV1 decreasing,age and NFGNB infection.
4.White matter microstructure alterations in the patients with generalized anxiety disorder: a diffusion weighted imaging study
Junyan ZHANG ; Jianan WANG ; Bin XU ; Jiayu GUO ; Wei ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(6):517-518
Objective To examine the white matter microstructure alternations in the patients with generalized anxiety disorder (GAD) with diffusion weighted imaging.Methods 19 patients with GAD and 20 matched healthy controls were assessed using apparent diffusion coefficient (ADC) and exponential apparent diffusion coefficient (eADC) in the regions of interests (ROIs) approach.The ROIs were the white matter of bilateral cingulate and bilateral hippocampus.Results Significantly increased ADC values were found in GAD patients (0.78±0.02,0.79±0.03) with respect to normal controls in the right and left anterior cingulate white matter.Significantly decreased eADC values were found in GAD patients (0.46±0.01,0.45±0.01) in the right and left anterior cingulate white matter.Conclusion Diffuse cingulate white matter alterations on DWI in GAD denote the disruption of white matter integrity.
5.Influence of exogenous somatostatin on pancreatic blood flow in normal rats or rats with acute necrotizing pancreatitis
Jianxin WU ; Xingpeng WANG ; Jiayu XU ; Yaozong YUAN ; Lanfe QIN
Chinese Journal of Pathophysiology 1999;0(09):-
AIM: To investigate the influence of exogenous somatostatin (stilamin) on pancreatic blood flow in normal rats or rats with acute necrotizing pancreatitis (ANP).METHODS: Pancreatic blood flow (PBF) was detected with computerized tissue blood flowmeter and rats with ANP were triggered with sodium taurocholate. Metabolites of eicosanoids in plasma were determined with radioimmunoassay. Other laboratory tests including histopathologic observation under optical or electron microscope were used. RESULTS: There was a significant decrease in PBF in normal rats after stilamin administration in comparison with that before use of the drug. There was significant decrease in PBF after onset of ANP, but, compared with that in ANP group, significant increase was shown in SS(stilamin)+ANP group. Plasma thromboxin-B 2(TXB 2) in ANP group at 6 hours after ANP was significantly higher, with increase of 4.5 times, than that in Sham(sham operated) group while TXB 2, detected each time during the course of ANP, significantly decreased in SS+ANP group. 6-Keto-prostagland in F 1? (6-Keto-PGF 1? ) at 6 h after ANP was significantly higher, and the ratio of TXB 2/6-Keto-PGF 1? , significantly lower in SS+ANP group than that in ANP group. Lessened necrosis of acinar cells, along with much fewer microthrombi in microvessels in SS+ANP group, was shown by pathologic scoring or electron microscope than that in ANP group.CONCLUSION: Administration of exogenous somatostatin leads to the decrease in PBF in physiological setting but it attenuates pancreatic ischemia in SS+ANP group, which may be attributed to correction of abnormal metabolism of eicosanoids, improvement of pancreatic microcirculation and cytoprotection of acinar cells as well.
6.Empirical study on the relationship between hospital governance structure and social responsibility
Jiayu LU ; Aijun XU ; Yanji SHI ; Jixia XIONG
Chinese Journal of Hospital Administration 2015;(4):295-299
This paper sampled 79 TCM hospitals above county level in Jiangsu Province for research.With hospital ownership,board governance and hospital directors as three dimension of internal governance structure,the multiple regression model was used to investigate the impact of such structure on its social responsibility performance.Education level,number of hospital directors,and their values are found to be significant factors on their social responsibility performance.
7.The intervention of glucagon-like peptide 1 analogue in IRE1α-JNK signaling pathway of rats with non-alcoholic fatty liver disease
Jiayu XU ; Na AO ; Jian DU ; Jing YANG ; Xiaochen WANG
Chinese Journal of Endocrinology and Metabolism 2015;31(3):272-276
Objective To explore the expressions of endoplasmic reticulum stress (ERs) related factors including inositol requiring enzyme-1α(IRE1αα),p-IRE1 α,c-jun N-terminal Kinase(JNK),and p-JNK in rats with non-alcoholic fatty liver disease,and to investigate the effect of intervention with glucagon-like peptide 1 (GLP-1) analogue.Methods Forty male Sprague-Dawley rats were divided into normal chow group(n =15) and high-fat diet group(n=25).After 12 weeks,5 rats of each group were used to assess the establishment of rat models with non-alcoholic fatty liver disease.Then the high-fat diet group rats were divided into high-fat diet group (HF,n =10) and GLP-1 group(HG,n=10) and treated with normal saline and GLP-1 analogue for4 weeks respectively.Body weight and biochemical markers in rats were measured.The expressions of IRE1α,p-IRE1α,JNK,and p-JNK were measured by Western blot.Results Compared with the NC group,the levels of body weight,plasma triglyceride (TG),total cholesterol (TC),low density lipoprotein-cholesterol (LDL-C),alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in HF group were significantly higher (all P < 0.01),high density lipoprotein-cholesterol(HDL-C) was decreased(P<0.01),and p-IRE1 α/IRE1 α and p-JNK/JNK were increased(P<0.05 and P<0.01).After GLP-1 treatment,body weight,plasma TG,TC,LDL-C,AST,ALT in HF group were significantly lowered(P<0.05 or P<0.01),HDL-C was increased(P<0.01),p-IRE1 α/IRE1 α and p-JNK/JNK were decreased (P<0.05 and P<0.01).Conclusion GLP-1 analogue may improve hepatic steatosis via regulating ERs related IRE1 α-JNK signaling pathway.
8.Donor dendritic cells-mediated recipient lymphocyte reaction after living related kidney transplantation
Chibing HUANG ; Xiaoting XU ; Jiayu FENG ; Mingqi FAN ; Genfu ZHANG ; Pingxian WANG ; Ya XIAO
Chinese Journal of Organ Transplantation 2011;32(1):39-42
Objective To explore the feasibility of mediating recipient lymphocyte reaction with donor dendritic cells (DCs) in renal allograft recipients. Methods Donor bone marrow monocytes (BMMCs) were isolated and cryopreserved in liquid nitrogen before kidney transplantation. At 0 day, 1month,3 month, 6 month and 9 month post-operation, CD34+ cells which were isolated from frozen BMMCs and cultured into DCs as well as the peripheral blood lymphocytes (PBLs) of donors were used as the stimulating cells to the PBLs of recipients and healthy volunteers. The number of viable DCs from frozen- and room temperature-preserved BMMCs was counted and the reactions of recipients'and healthy volunteers' lymphocytes to DCs and donor PBLs were measured. Results 6. 8 × 107BMMCs were isolated from each 10 ml of donor bone marrow on average while (4. 10 ± 0. 58) × 105CD34+ cells were isolated by magnetic active cell sorting (MACS). There was no significant difference in the isolating rate of recovered CD34+ cells at each observation point postoperatively. The percentage of viable BMMCs and CD34+ was decreased significantly at 1 month after surgery, then, decreased slowly and progressively. The decreasing rate of BMMCs was higher than CD34+. The rate of viable DCs was maintained stable (93. 2%-94. 8% ) in each group. The reactions of recipients' and healthy volunteers' lymphocytes to DCs were stronger than those to donor PBLs (P<0. 05). The reactions of healthy volunteers' lymphocytes to DCs were maintained stable while those of recipients' were fluctuating. Conclusion Bone marrow-derived DCs are superior to PBLs in mediating long-term lymphocyte reaction after kidney transplantation due to their stable viability and stimulating ability to lymphocytes. Only once collection of a small quality of bone marrow of donors is needed to meet the demand of immune monitoring at any time after transplantation.
9.Application of donor dendritic cells-mediated recipient lymphocyte reaction after living related kidney transplantation in individualized immunosuppressive therapy
Chibing HUANG ; Xiaoting XU ; Mingqi FAN ; Jiayu FENG ; Genfu ZHANG ; Pingxian WANG ; Ya XIAO
Chinese Journal of Organ Transplantation 2011;32(9):519-522
ObjectiveTo explore the feasibility of mediating recipient lymphocyte reaction with donor dendritic cells (DCs) in renal allograft recipients to guide individualized inmunosuppressive therapy. Methods From Jan. 2008 to Jan. 2010, 30 recipients received living related kidney transplantation were successively and divided into 2 groups according to the strategies of the correction of the dosage of immunosuppressant, 15 in each group. The strategy of immunosuppressive therapy in both groups was Tac + MMF + Pred. The correction of the dosage of immunosuppressant in experimental group was conducted by recipient lymphocyte reaction with donor DC (LR) combined with Tac and MPA blood concentration monitoring. Only blood concentration monitoring of drugs was applied in control group. Examinations of liver and renal function, blood and urine routine as well as blood sugar were done monthly for 1 year. ResultsDuring the follow-up period, the rate of acute rejection in experimental group and control group was 13. 3 % and 46. 7 % respectively (P<0. 05) ;the rate of infection in experimental group and control group was 6. 7% and 40. 0% (P<0. 05)respectively; the adverse reaction rate in experimental group and control group was 13. 3% and 46. 7%(P<0. 05). There was no significant difference in the serum creatinine level between the two groups at each observation point. ConclusionThe application of combined recipient LR with donor DC and blood concentration monitoring of drugs in individualized irnmunosuppressive therapy is more comprehensive and accurate.
10.Clinical and etiologic features of diarrheagenic Escherichia coli-associated diarrhea in children
Hailing CHANG ; Yuefang LI ; Mei ZENG ; Huiming JIN ; Jiayu HU ; Xuebin XU ; Zhonglin WANG
Chinese Journal of Infectious Diseases 2015;33(3):137-141
Objective To investigate the pathotypes,epidemiological characteristics and antimicrobial resistance of diarrheagenic Escherichia coli (DEC) in children with acute bacterial diarrhea in Shanghai.Methods A total of 2 071 outpatient children with probable acute bacterial diarrhea referred to the enteric clinic of Children's Hospital of Fudan University during June 2012 to June 2014 were enrolled in our study.The stool samples were processed for routine microbiologic and biochemistry tests to identify enteric bacteria,including enteropathogenic Escherichia coli (EPEC),enterotoxigenic Escherichia coli (ETEC),enteroinvasive Escherichia coli (EIEC) and enterohemorrhagic Escherichia coli (EHEC).Kirby-Bauer method was used to identify the antibiotic sensitivity.Difference of means between groups was compared by chi-square test.Results Of 2 071 enrolled children,DEC were identified in 145 (7.0 %)cases.148 strains were isolated with three of mix infection strains.All DEC isolates in this study included 106 (71.6%) EPEC,24 (16.2%) ETEC,16(10.8%) EIEC and 2(1.4%) EHEC.The median ages of diarrheal children with DEC infections were 14 months (range:3 months to 13 years) and 62.8% of them were <2 years.Among 125 DEC isolates tested for antimicrobial susceptibility,the rates of resistance to ampicillin,trimethoprim-sulfamethoxazole,cefotaxime,cefepime,gentamicin,ceftazidime,amoxicillinclavulanate,ciprofloxacin,and ofloxacin in a descending order were 55.2%,35.2%,28.0%,27.2%,23.2%,8.8%,5.6%,4.0% and 4.0%,respectively.Resistance rates of EIEC to cefotaxime,cefepime and ceftazidime were 50.0%,43.8% and 25.0%,respectively,which were higher than those of EPEC,ETEC and EHEC.Conclusion DEC is the important enteric bacteria that causes bacterial diarrhea in children in this study.