1.Progress of research on the relations of GST-π and chemotherapy drug resistance for ovarian cancer
Journal of International Oncology 2010;37(3):225-227
The platinum-based chemotherapy play an important role in alleviating symptoms of advanced ovarian cancer patients and prolongation of survival time ,The multidrug resistance(MDR),however,seriously affects the chemotherapy affect, the current MDR and its Mechanism studies show that,as a phase Ⅱ detoxification enzymes ghtathione S-transferase-π(GST-π) promote tumor cell resistance to chemotherapoutic drugs by affecting the biotransformation and metabolic processes of drugs,and closely related to MDR in ovarian cancer.
2.The application of PET/CT to predict prognosis of radiotherapy of NSCLC
Chinese Journal of Radiation Oncology 2016;(3):288-291
Conventional CT plays an important role in the diagnosis, staging, radiotherapy target delineation, and prognosis of NSCLC, but it still has many limitations.PET/CT has been widely used in the diagnosis and treamtent of lung cancer.In particular, PET/CT metabolic parameters have great guiding significance in the prognosis of NSCLC patients undergoing radiotherapy, and may be superior to many clinical indices.This review summarizes the advances in the application of PET/CT in the prognostic evaluation of NSCLC patients undergoing radiotherapy.
3.Effect of Different Concentrations of Dextrose Transfusion on Cerebral Glucose Metabolism in Pediatric Neurosurgical Operations
Tianjin Medical Journal 2010;38(1):29-31
Objective: To investigate the effect of different concentrations of dextrose transfusion on cerebral glucose metabolism in pediatric neurosurgical operations. Methods: Sixty anesthetized children undergoing selective cerebral tumor resection were randomly divided into three groups: Ringer lactate solution group (A, n = 20), 2.5% dextrose lactated Ringer's solution group(B, n = 20), 1% dextrose lactated Ringer's solution group (C, n = 20). All the hemodynamic data were recorded during anesthesia. The values of blood glucose and lactic acid were collected before intubation(T_a), 2 hours after opening cerebral dura mater (T_b) and the end of operation (T_c). The catheters for microdialysis were punctured into normal brain tissue. The contents of glucose and lactic acid were determined in the collected intercellular fluid by biochemical analysis instruments at T_A and T_B respectively. Results: There were no differences in heart rate(HR), mean arterial pressure(MAP) and arterial oxygen saturation (SpO_2) among three groups(P > 0.05). There were no differences in blood glucose at T_a between three groups(P > 0.05). The values of blood glucose at T_b and T_c were B group>C group>A group(P < 0.05). The values of blood glucose were higher at T_b and T_c than that of T_a in three groups(P < 0.05). There were no differences in blood lactic acid among three groups(P > 0.05). There were no significant differences in values of glucose and lactic acid in the collected intercellular fluid among three groups(P > 0.05). Conclusion: Transfusion of Ringer lactate solution or low concentration dextrose solution will increase blood glucose in pediatric neurosurgical operations, but still in the normal range, which has a little influence on blood lactic acid, glucose and lactic acid in brain intercellular fluid. It is a safe choice during neurosurgical operation.
4.An Analysis of Conflicts in Present Medical Service
Chinese Medical Ethics 1994;0(06):-
The article introduces the properties of public health enterprise in current China and concomitant conflicts.The manifestations,causes and solutions to the conflicts are discussed so as to provide some proposals to solve relative problems for improving the physician-patient relationship and health service.
6.Study on the Effects of Arsenic Trioxide on the Encoding Protein Expressions of Metastatic Gene in Gastric Cancer Cells of Human Body
Shumei LIU ; Wei XU ; Xiangyu MENG ; Tao LIANG ; Xin MENG
China Pharmacy 2005;0(13):-
OBJECTIVE:To study the effects of arsenic trioxide(As 2 O 3 )on the encoding protein expressions of nm23and P53in gastric cancer cells and to study the anti-canecer mechanism of which in the tumor.METHODS:A control group and a test group were set up.The expressions of gene coding proteinum nm23and P53of the gastric cancer cells cultured in vitro by the action of As 2 O 3 were determined by immunohistochemistry method.RESULTS:The expression levels of nm23and P53in gastric cancer cells have been lowered compared with the control group.CONCLUSION:As 2 O 3 can exert its anti-tumor effect by decreasing the expression of gene coding proteinum of nm23and P53.
7.The Study on the Influence of Liuwei Dihuang Pill on the Intelligence Level of Mice of Mental Stunting
Liang ZHAO ; Lijun CAI ; Linatutor MENG
Journal of Zhejiang Chinese Medical University 2013;(12):1426-1428,1438
[Objective] Discussion about feeding Liuwei dihuang pil to different ages of mental retardation intel igence-type mice, then test their intel igence level and mechanism. [Methods]The changes of ethology expressions are determined in healthy KunMing mice of five groups divided randomly:male mice (n=5), female mice(n=20). Group A:normal control group;Group B:the group with innate kidney deficiency and lead ingested. Group C:the group of lead poisoning, and the offspring mice are administered pil s. Group D:the group with innate kidney deficiency and lead ingested, and the adult mice are adminis-tered pil s. Group E:the group with innate kidney deficiency and lead ingested, and both the adult mice and offspring mice are administered pil s. According to the proportion of male and female mice, make them mate, remove the male mice. Before delivery, do threat means and give 0.1%Lead acetate trihydrate solution to Groups B,C,D,E.Groups D,E have tonifying the kidney. Give routine food to Groups A,B,C. Female mice wil labor in 19~22 days after mating, getting the offspring mice. The offspring mice in different periods of growth are carried out ethology determination and analyzed.[Results]Newborn rat kid-ney stand test shows rat offspring is not better than the success rate of kidney emancipated group, juvenile rat kidney tests show space group behavior test per-formance superior to that of kidney group, and long-term kidney group(offspring, mother on behalf of both rat kidney) or female offspring than only on be-half of kidney groups, multiple comparisons between groups(LSD-t statistical analysis) are statistical y significant, A group compared with B group, C group, D groups respectively(t=27.50,8.10,9.30,3.00,P<0.05), B group compared with C group, D group, E group(t=19.40,18.20,27.80, P al <0.05), C group and D group have difference statistical y significant(t=8.40, P<0.05), D group and E group difference is statistical y significant(t=9.60, P<0.05), young rats tightrope test, kidney group to some extent, is stil better than not Bushen group, multiple comparisons between groups find that:A group and D group, B group and C group, B group and E group, C group and D group, D group and E group have differences statistical y significant(t=22.01, 25.41,20.90,32.11,27.60, P<0.05). [Conclusion]Liuwei Dihuang Pil can improve the intel igence level of mice to a certain extent.
8.Significance of combined detection of serum tumor markers in the diagnosis of NSCLC
Fei MENG ; Heng WANG ; Xin LIANG
International Journal of Laboratory Medicine 2014;(19):2638-2639,2643
Objective To investigate the diagnostic significance of combined detection of neuron specific enolase (NSE ) , cytokeratin 19 fragment(CYFRA21-1) ,carcinoembryonic antigen(CEA) ,carbohydrate antigen 125(CA125) ,carbohydrate antigen 19-9(CA19-9) and serum ferritin(SF) in non-small-cell lung cancer(NSCLC) .Methods NSE ,CYFRA21-1 ,CEA ,CA125 ,CA19-9 and SF were detected by chemiluminescent immunoassay in 52 patients with NSCLC(NSCLC group) ,35 patients with benign lung diseases(benign lung diseases group) and 44 healthy controls(control group) .Results These serum tumor markers in NSCLC group were significantly higher than those in benign lung diseases group and control group(P<0 .01) .Serum level of CEA was ob-viously higher ,while CYFRA21-1 was lower in patients with adenocarcinoma than those in patients with squamous carcinoma(P<0 .05) .The sensitivity(96 .2% ) ,specificity(87 .3% ) and accuracy(90 .8% ) of combined detection of these tumor markers preceded any single ones .Conclusion The combined detection of NSE ,CYFRA21-1 ,CEA ,CA125 ,CA19-9 and SF can improve the diagnos-tic sensitivity and accuracy of NSCLC ,which could provide higher clinical value in the diagnosis of NSCLC .
9.The clinical study on valsartan combined with indapamide in the treatment of hypertension
Xianghuan MENG ; Cunliang ZHANG ; Chunhai LIANG
China Medical Equipment 2014;(10):120-122,123
Objective: To explore the clinical effect of valsartan combined with indapamide in the treatment of hypertension. Methods: In our hospital in 2012 August ~ 2013 August treatment of 280 cases of hypertensive patients, all patients had drug withdrawal for 2 weeks. Were randomly divided into observation group 100 cases and control group 1, control group 2 of the 90 cases, control group 1 given valsartan, control group 2 given indapamide, the observation group were given valsartan combined with indapamide, were treated for 8 weeks. Results:three groups of patients before treatment, the blood pressure were not significantly different, after the treatment, the observation group decreased blood pressure was significantly higher than that in control group, the total efficiency had significant difference (x2=6.472, P<0.05). Conclusion:Valsartan combined with indapamide in the treatment of hypertension has fast acting, high curative effect, long duration, few adverse reactions, is the ideal choice for the treatment of hypertension, is worth the clinical promotion and application.
10.Genetic algorithm for multi-protocol label switching
Deyu MENG ; Dong LIANG ; Yongfa LING
Journal of Pharmaceutical Analysis 2007;19(2):121-123
A new method for multi-protocol label switching is presented in this study, whose core idea is to construct model for simulating process of accommodating network online loads and then adopt genetic algorithm to optimize the model. Due to the heuristic property of evolutional method, the new method is efficient and effective, which is verified by the experiments.