1.Epstein-Barr virus infection and development of T-cell lymphoma
Journal of Leukemia & Lymphoma 2009;18(5):312-315
Epstein-Barr virus (EBV) is a kind of DNA tumor virus. Previous Studies on the tumorigenic mechanism of EBV mainly focus on human B lymphocyte. Now there are evidences that EBV exists in human T-cell lymphoma. Exploration in recent years show that EBV could infect T lymphocyte and likely play an important role in the pathogenesis of T-cell lymphoma. Investigation of molecular biological effect of LMP1 in T cell will be helpful for us to understand the approach and mode of EBV infecting T lymphocyte as well as the mechanism of T-cell lymphoma development.
2.CHANGES OF FATTY ACIDS COMPOSITION OF EEL OIL AFTER REFINING PROCESSES
Dongyang XIE ; Xiaoqiong XIE ; Lihong LIU ; Miao XIE ; Chunji GAN
Acta Nutrimenta Sinica 1956;0(01):-
Objective: To determine the changes of fatty acids composition of eel oil after refining processes. Methods: The composition of fatty acids was determined by GC-MS. Results: The purity of eel oil was increased and the content of high-unsaturated fatty acids was not influenced after deodorization by water vapor distillation at 180 ℃ and 0.01 MPa. Its nutritive value was increased, while its purity and content of unsaturated fatty acids were further increased after winterization at 10 ℃. Its quality, especially unsaturated fatty acids, distinctly decreased after water vapor distillation at 227 ℃ and 0.01 MPa.Conclusion: The nutritive value of eel oil is increased after refining processes of water vapor distillation at 180 ℃ and 0.01 MPa, and winterization at 10 ℃.
3.The application of auxiliary diagnosis expert system of biochemical analyzer
Yiwu GAN ; Qinghua XIE ; Bo WANG
China Medical Equipment 2016;13(12):160-162,163
The combination of biochemistry analyzer and medical expert system was proposed in this report. Biochemistry analyzer is one of the most important analytical instrument used in clinical detection. It could take immunological examination and biochemical analysis for blood, urine, pleural effusion and cerebrospinal fluid and other body fluids. Medical expert system is an intelligent program system with knowledge and experience of a large number of medical specialists. It could use the knowledge and method of medical experts to solve and deal with problems in the field. This system mainly includes human interface, inference engine, interpreter, knowledge acquisition procedures, integrated database and knowledge base. Some parts of system design, such as the expression and design, and interpretation mechanism of the knowledge base, have been interpreted in details. It adopts production as an expression of knowledge. Generally, knowledge was expressed as if the conditions, then the conclusion form. Interpretation mechanism use the error counter propagation of neural network to train the algorithm (BP algorithm for short).The combination could automatically conduct comprehensive analysis of various data generated by the instruments, and then obtain the science theoretical foundation and the most reasonable specialist conclusions. This report provides an overview of the system design of medical expert system.
4.The design of liquid level detection system by ultrasonic method on automatic enzyme ;immunoassay system
Yiwu GAN ; Qinghua XIE ; Xuancheng GUO
China Medical Equipment 2016;13(9):13-15
Objective:To design the liquid level detection system by ultrasonic method to meet the requirements of automatic enzyme immunoassay workstations and have a precise detection of liquid level. Methods:Because the existing sample needle should move down, liquid surface and the poor conductivity of liquid were invalid. So a method of ultrasonic liquid level detection system was designed. The control signal was launched by a microprocessor to control ultrasonic signal generator chip and the ultrasonic signal reflected when the liquid level in a test tube or microplate. Results: By receiving the reflection echo signal sent to the microprocessor for signal processing, the liquid level was detected. Conclusion: The ultrasonic method applied to the liquid level detection system to overcome the above shortcomings, improve pipetting accuracy and avoid cross pollution, so as to meet the requirement of the automatic enzyme immunoassay workstation test.
5.THE HEART STRUCTURE AND FUNCTION CHANGES AND RELATED RISK FACTORS OF TYPE 2 DIABETIC PATIENTS
Guonan DENG ; Peizhou GAN ; Xia′nan XIE
Modern Hospital 2014;(8):27-29
Objective To investigate the changes of cardiac structure and function in type 2 diabetes mellitus (T2DM), analyze the related risk factors of heart failure, and improve the awareness of the effect of diabetes on the heart. Methods Randomly selected 170 cases of T2DM patients As the object of study, 170 cases of non diabetic patients as con-trol group, according to whether complicated with heart failure were divided into heart failure patients and non heart failure patients.Comparison of each group left ventricular posterior wall thickness, left ventricular end diastolic diameter, left ven-tricular end systolic diameter, left ventricular ejection fraction, E/A ratio Differences, analysis of the related risk factors of heart failure by logistic regressive.Results T2DM group left ventricular posterior wall thickness, left ventricular end diastolic diameter and left ventricular end systolic diameter increased , Left ventricular ejection fraction decreased, E/A ratio de-creased, were statistically significant difference compared with the control group (p <0.05).These differences are mainly come from non heart failure patients.Logistic regression showed that factors in patients with diabetes duration, HbA1c, com-pliance and complications of hypertension, coronary heart disease, is a risk factor for heart failure complicated with T2DM (all p<0.01).These may be the risk factor for diabetic patients with heart failure.Conclusion Diabetes can cause cardiac remodeling, systolic and diastolic dysfunction maybe some T2DM patients.They did not show symptoms of heart failure in the clinical, but their Cardiac structure and function are abnormal.We should pay attention to the cardiac function examination and early evaluation, prevention of risk factors, to avoid the occurrence of heart failure.
6.Diagnosis and surgical treatment for the intracardiac leiomyomatosis
Shiqiu SONG ; Jianqun ZHANG ; Jinsheng XIE ; Huili GAN ; Ping BO
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(2):76-78
Objective To investigate the diagnosis and surgical treatment for the intracardiac leiomyomatosis (ICL).Methods Retrospectively reviews the data of 18 cases of ICL from February 1995 to June 2011 in Anzhen Hospital.Preoperative diagnosis of right atrial myxoma in 2 cases,right atrium/ventricular thrombus in 2 cases,pulmonary embolism in 2 cases,the inferior vena cava and right atrial tumor in 3 cases,the inferior vena cava lesions in 9 cases.18 cases of ICL were diagnosed by echocardiography,magnetic resonance imaging ( MRI ),computer tomography (CT) and angiography.ICL were recected under anesthesia,cardiopulmonaray bypass surgery,he incisions were respectively through the chest,thoraco-abdominal or abdominal incision,cardiopulmonary bypass method were respectively at room temperature,mid-low temperature with cardiac arrest,lowflow,deep hypothermic circulatory arrest.Results There was no operative death.Right atrium,inferior vena cava,bilateral renal vein,bilater alIliac vein vascular were not found leiomyoma by vascular ultrasound.Follow-up time was 5 ~ 106 (49 ± 42 )months,1 patient died of the leiomyoma recurrence after 5 months after the primary operation,the remaining 17 patients were followed up asymptomatically.10 were in NYHA functional class Ⅰ,and 7 in class Ⅱ.The 5yrs survival rate calculated by the Kaplan-Meier survival curve was (93 ±5 )%.Conclusion The ICL preoperative diagnosis is difficult,surgical treatment of ICL can get a good mid-long term survival rate and living quality.
7.Sex differences affecting the effect of CPR in the mouse cardiac arrest model
Fengqing SONG ; Weini GAN ; Lu XIE ; Menghua CHEN
Chinese Journal of Emergency Medicine 2014;23(3):279-282
Objective Objectives To investigate the gender difference affecting the efficacy of cardiopulmonary resuscitation (CPR) in the mouse cardiac arrest (CA) model.Methods CA was induced in 30 Kunming mice (15 male and 15 female) by trans-oesophageal cardiac pacing for 4 minutes.Epinephrine was then administrated intra-artery,and CPR was performed.The time required for restoration of spontaneous circulation (ROSC) was observed,but if ROSC failed to appear at 10 minutes after CPR,resuscitation was discontinued.Blood pressure and electrocardiograms of resuscitated animals were invasively monitored for an additional 60 minutes.Blood pressure,heart rate,the restoration of spontaneous respiration (ROSR) and survival time were observed and recorded.Results All 15 female mice and 14 of 15 male mice had ROSC.There were no significant differences in the time required for ROSC,ROSR,and survival between the two groups [(50±17)svs.(46±12)s; (2.4±1)minvs.(2.5±1)min; 28 (1,72)h vs.16 (3,72)h,P > 0.05)].Moreover,neither blood pressure nor heart rate showed significant differences one hour after ROSC between the two groups.Conclusions Sex differences did not affect the efficacy of CPR,but the precise mechanism is still unclear,and further investigations are required.
8.Impact of intra-arterial versus intravenous administration of epinephrine on the efficacy of CPR in mice
Weini GAN ; Fengqing SONG ; Lu XIE ; Menghua CHEN
The Journal of Practical Medicine 2014;(16):2555-2557
Objective To compare the impact of intra-arterial versus intravenous administration of epinephr-ine on the efficacy CPR in mice. Methods Transoesophageal cardiac pacing was performed to induce cardiac arrest for 4 minitues in 20 Kunming male mice. The mice were then randomized to two groups (n = 10 in each group), and received epinephrine of 0.02 mg/kg via either carotid artery (IA-gro) or jugular vein (IV-gro) injection. Chest compression and ventilation were performed; and the rate of restoration of spontaneous circulation (ROSC) and survival time were recorded. CPR was stopped if spontaneous circulation was not restored within 10 minutes. Results There was no significant difference in the rates of ROSC between IA-gro and IV-gro (10/10 vs. 8/10, P>0.05), nor in the time of ROSC or survival time [51 ± 13 s vs. 62 ± 24 s; 8.5 (6.0, 17.0) h vs. 6.5 (2.8, 21.3) h, P > 0.05]. Conclusions Neither intra-arterial nor intravenous administration of epinephrine has no obvious impact on the efficacy of CPR in mice.
9.Research progress of targeted drugs in breast cancer treatment
Shaoju GAN ; Qing WANG ; Limin ZHU ; Hao XIE ; Xianfeng DING
Basic & Clinical Medicine 2015;(1):134-137
Because of its specificity , significant effect , low side effect , molecular targeted therapy has been applied in the treatment of breast cancer .Recently, various molecular targeted drugs have been exploited including targeted HER family, VEGF, multi-targeted therapeutic drugs , and drugs combination .
10.Dust mite drops by improving immune function in treating allergic rhinitis
Chunxiu WEN ; Xiaojuan XIE ; Jinmei GAN ; Yuhua MO ; Mingjing JIANG
Chinese Journal of Immunology 2016;(2):244-246
Objective:To analyze the immune function regulation and clinical effect of dust mite drops desensitization treatment on children with allergic rhinitis.Methods:80 patients with allergic rhinitis and adenoid hypertrophy treated in our department from January 2012 to June 2014 were selected and randomly divided into experimental group and control group.Control group was treated with ebastine and levocabastine treatment, the experimental group was treated with sublingual containing Dermatophagoides Farinae Drops on the basis of control group.The level of IL-2,IL-6,house dust mite specific IgE (sIgE),dust mite IgE (T-IgE),house dust mite specific IgG4 ( sIgE in) ,blood addicted eosinophile cells ( EOS) ,and induced sputum EOS level were compared between the two groups before treatment and after 2 years treatment.Results:The level of IL-2 in the two groups was significantly higher than that before treatment,the level of IL-6 was significantly lower than that before treatment ( P<0.05 ) .After treatment, the level of IL-2 in the experimental group was significantly higher than that in the control group, the level of IL-6 was significantly lower than that in the control group( P<0.05 ).After treatment, the level of sIgE, T-IgE, blood EOS and induced sputum EOS in the two groups were significantly lower than before treatment,the level of sIgG4 were significantly higher than those before treatment (P<0.05).After the treatment,the level of sIgE, T-IgE, blood EOS and induced sputum EOS in experimental group were significantly lower than control group,and the level of sIgG4 was significantly higher than that in control group ( P<0.05).After treatment,the asthma symptom scores and nasal symptom scores of the two groups were significantly lower than before treatment (P<0.05),and those index of experimental group after treatment were significantly lower than control group ( P<0.05 ).Conclusion: Combine the basis of conventional therapy plus with Dermatophagoides Farinae Drops in the treatment of allergic rhinitis and adenoid hypertrophy children can effectively regulate the immune function of the patients,has good clinical efficacy.