Objectives To observe the effectiveness of bronchoscope guided microwave heating coagutation therapy(HCT)combined with systematic chemotherapy in treating advanced lung cancer.Methods 44 patien with advanced bronchogenic carcinoma were divided into the test group(22 patients)and the control group(22 patients)randomly.Test group received HCT through needle mono pole microwave antenna guided by bronchoscope combined with the routine Carboplatin and etoposide (CE)regimen.While the control group was treated only by chemotherapy with the routine CE regimen.Results in the 22 patients,8 were completely cured and 12 showed partial recovery,the other 2 without any change.The 91% effective rate was significantly higher than 55% of the control group (P

Left ventricular noncompaction(LVNC)describes a rare cardiomyopathy of unknown etiology characterized by the presence of prominent trabeculations and deep intertrabecular recesses.It is one of the three major cardiomyopathies among children.LVNC can have different inheritance patterns, including X-linked recessive, autosomal dominant, and mitochondrial inheritance.Mutations in genes encoding sarcomere or cytoskeletal proteins have been identified as causes of LVNC.As a comprehensive cardiac event with serious complications such as life threatening arrhythmias, heart failure and thromboembolism, LVNC is mainly diagnosed through echocardiography, cardiac magnetic resonance and other examinations.Early improvement of genetic evaluation, screening of family members for the mutation, close follow-up of high-risk patients, and early management of complications will help to improve patients′ quality of life and prognosis.

Purpose:To study the effectiveness and toxicity of venorelbine combined with fluorouracil/leucovorin in patients with nasopharyngeal carcinoma(NPC) refractory to platinum based chemotherapy.Methods:The chemotherapy regimen consisted of bimonthly intravenous infusion of venorelbine 25 mg/m 2 plus 2-hour infusion of leucovorin 200 mg/m 2 followed by 48-hour infusion of 5-FU 3.0 g/m 2 using an ambulatory pump. Results:Among 30 patients entered into the study,1 patient achieved complete response,15 patients achieved partial response with an overall response rate of 53.3% and 10 had stable disease with clinical benefit rate of 86.7% respectively. 4 patients had disease progression. Median time to progression was 7 months(range:2.0-20.0 months) and the 1-year survival rate was 51%. The main toxicities were diarrhea and myelotoxicity.Conclusions:The results indicate that venorelbine combined with fluorouracil/leucovorin in patients with nasopharyngeal carcinoma refractory to platinum based chemotherapy has moderate activity but comparatively mild toxicity.

Objective The study is to evaluate autonomic nervous activity and its circadian rhythm over a 24 hour period in children with beta adrenergic receptor (? AR) hypersensitivity and hyperthyroidism by analysis of heart rate variability (HRV), and to discuss the diagnosis value of autonomic nervous tone change in children with ? AR hypersensitivity Methods Indexes of HRV are measured in 23 children with ? AR hypersensitivity, and 13 hyperthyroidism and 26 healthy control Time domain indexes and spectral indexes of HRV are derived and the night day difference of HRV is analyzed Results 1 Spectral indexes over a 24 hour period: In patients with ? AR hypersensitivity and hyperthyroidism, there are significant increases both in low frequency (LF) to high frequency (HF) ratio (LF/HF) and HF normalized units (HF UN ) compared with the control group Whereas there are no significant changes compared with ? AR hypersensitivity and hyperthyroidism 2 Spectral indexes during waking hours: In patients with? AR hypersensitivity and hyperthyroidism, there are no significant difference in LF normalized units (LF UN ), HF UN and LF/HF; whereas there are significance changes compared with normal subject 3 Spectral indexes during sleeping hours: there are no significantly differences in indexes of HF, LF UN and HF UN compared with ? AR hypersensitivity and normal subject, whereas these indexes significance changes compared with hyperthyroidism 4 Time domain indexes change over a 24 hour period: There are significant changes of the night day difference in time domain indexes with? AR hypersensitivity or control group, in which rMSSD and pNN50 are most sensitive indexes Whereas there are significant difference in patients with hyperthyroidism in any time domain indexes of HRV compared with control group or ? AR hypersensitivity, and the night day difference in HRV is significantly smaller compared with ? AR hypersensitivity or control group, the circadian rhythm is almost disappeared Conclusion It is showed that the children with? AR hypersensitivity have no difference from normal subjects in autonomic nervous system activity, but these patients respond differently to the catecholamine stimulus, which results in changes in autonomic balance, and relatively increase of sympathetic nervous activity But cardiac autonomic nervous activity still has a circadian rhythm, which is similar to normal subject The analysis of HRV may play an important role in diagnosis? AR hypersensitivity

Objective To study the effectiveness and toxicity of ifosfamide(IFO) combined with venorelbine(VRL) in patients with nasopharyngeal carcinoma(NPC) refractory to platinum based chemotherapy. Methods The chemotherapy protocol consisted of intravenous infusion of IFO at the dose of 1200 mg/m2 from day 1 to day 5 with uroprotection of Mesna in infusion at 0,3,6 hours following initiation of IFO and VRL at the dose of 25 mg/m2 at day 1 and day 5. The protocol was repeated every 3 weeks. All patients received at least 2 cycles of chemotherapy. Results Among 25 patients enrolled into the study, 2 patients achieved complete remission, 12 patients achieved partial remission with an total remission rate of 56.0 % and 8 patients had stable disease with clinical benefit rate of 88.0 %. 3 patients had disease progression. Median time to progression was 7.1 months(range:2.0～21.0 months) and 1-year survival rate was 55 %. The main toxicities were myelotoxicity and phlebitis. Conclusion The results indicate that IFO combined with VRL in patients with NPC refractory to platinum based chemotherapy has moderate activity ascompany with tolerable toxicities.

Object To observe the effects of rehmaionoside A on mice leukopenia models induced by cyclophosphamide. Methods Mice leukopenia models were prepared by ip cyclophosphamide and then treated with rehmaionoside A. The levels of body weight, peripheral hemogram, reticulocyte count, spleen index, bone marrow karyocyte count and contents of bone marrow DNA were determined. Results Rehmaionoside A could obviously raise the counts of white blood cell, red blood cell, platelet, reticulocyte and bone marrow karyocyte, contents of bone marrow DNA, and body weight of the leukopenia model. Conclusion Rehmaionoside A has apparent leukogenic and antianemic actions.

Objective To evaluate the effect of enteral nutritional support for the liver cancer patients with precise hepatetomy under fast track process model. Methods 82 patients were prospectively randomized into enteral nutrition group (n = 41) and parenteral nutrition (n = 41). The hemoglobin (HB), total protein (TP), albumin (ALB) and total lymphocyte count (TLC) were measured on 3 days before operation and 7 days after operation respectively. The two groups were compared in terms of time for anal exhaust and defecation after surgery , the postoperative hospital stay, the gastrointestinal adverse reactions and complications after surgery. Results The nutrition and immunity indicators on day 7 after operation were significantly poorer and lower than on day 3 before operation in the parenteral nutrition group (P<0.05); the declines of TP and ALB were significantly contained in the enteral nutrition group (P<0.05). The time for anal exhaust and defecation in the enteral nutrition group was advanced 15.1 h and 27.9 h on average, compared to the parenteral nutrition group and control group, respectively. The rate of adverse reaction was significantly lowered (17.3%vs. 40.4%, P<0.05). The rate of complications in the enteral nutrition group was significantly lower than the parenteral nutrition group (P>0.05). Conclusion Enteral nutritional support under fast track process model for the liver cancer patients undergoing precise resection could improve clinical outcome.

BACKGROUND: The study of cell transplantation to repair injured cardiac muscle and improve cardiac function of dilated cardiomyopathy (DCM) has become a hotspot in recent years. However, the effect of cardiac electrophysiology following transplantation is still unknown.OBJECTIVE: To explore the influence of ailogenic implanted mesenchymal stem cells (MSCs) on cardiac function, structure and electrophysiology of rabbits with DCM.DESIGN, TIME AND SETTING: Randomized controlled animal trial was performed at Electrophysiology Laboratory of Institute of Pediatrics, Chongqing Medical University between January 2004 and May 2006.MATERIALS: Forty-three New Zealand whiterabbits, weighing 3.0-3.5 kg, irrespective of gender, were selected. Adriamycin was produced by Haizheng Medical Products Company of Zhejiang Province, China, No. 050307. The Ultrasonograph SSD-5000 came from Aloka, Japan, and RM6240 multiplying channel electrophysiolograph of Chengdu Instrument Company was applied.METHODS: All animals were randomized into normal group (n=12), cell transplantation group (n=13), and DCM model group (n=13). Except the normal group, adriamycin was applied to create rabbit DCM model, I mg/kg, twice a week for successive 8 weeks. Bone marrow solution was harvested from the remaining 5 rabbits, and MSCs were isolated, amplified and purified using attachment method. Three weeks after modeling, the MSCs were transplanted into left ventricle anterior wall at four sites in cell transplantation group, model group was injected with matching DMEM/FI2 medium, while the normal group was not given any treatment.MAIN OUTCOME MEASURES: At four weeks postoperatively, left ventricular end-diastolic dimension, end systolic dimension,left ventricular ejection fraction, and shortening fraction were monitored by ultrasonograph; the value for monophasic action potential amplitude (MAPA) and the maximum velocity in 0 phase (V,,~), the value for 50% monophasic action potential durations (MAPDs0) and 90% monophasic action potential durations (MAPDg0) were detected by electrophysiolograph. In addition, the cardiac tissues harvested from implanted region were observed by light microscope and electron microscope, and also the expression of cardiac troponin T (cTnT) and connexin 43 (Cx43) was detected through immunohistochemistry.RESULTS: Of 43 rabbits, 9 rabbits each of the transplantation group died of the acute or chronic toxic effects of Adriamycin, finally, 25 rabbits were included in final analysis. Compared with model group, the end systolic dimension was diminished, and the left ventricular ejection fraction and shortening fraction in cell transplantation group were significantly increased (P ＜ 0.05). The MAPDs0 and MAPDgo in cell transplantation group prolonged significantly compared with model group (P ＜ 0.05). In model group,cardiac myocytes appeared mitochondria swelling and hyperplasia, and their sarcomere had different lengths, arranged unevenly,accompanied by abnormal contraction bands. In addition, myolysis was found in parts of myocardium under electron microscope.However, the structural abnormalities in the cell implantation group were less than the DCM model group, and the implanted MSCs could express cTnT and Cx43.CONCLUSION: Allogenic MSCs transplantation can improve cardiac function, lessen structural abnormalities and may inhibit the progression of electrophysiology derangement.

Objective To study the changes of the transient outward K+ current (Ito),delayed rectifier K+ current(IkDR) and the inward rectifier K+ current(Ik1) of the rat bone mesenchymal stem cells (MSCs) induced by 5-Azacytidine(5-Aza) during proliferating and differentiating process in vitro. Methods MSCs were cultured according to related articles for two weeks and then some of the cells were induced by 5-Azacytidine.The experiment was divided into uninduced(cultured for 6w) and induced(1,2,3 and 4w) cell groups. Each week had twenty cells random tested by the whole-cell patch clamp technology and the K+ currents were identified by corresponding ionic blockers.Results The detection rate of the same type of K+ current during test weeks had no significant deviation;The three types of K+ current intensity were gradually augmented after being inducing cultured for 1,2,3 and 4 weeks(P

This paper is based on conflicting issues in clinical teaching between undergraduates and residents, also around cultivating goals on clinical competency. In order to enhance medicine-education collaboration and conception of continue education and improve clinical teaching management system for integration of undergraduates and residents, five measures should be put into practice. First, define the re-sponsibility of physicians at all levels. Then, accord training standards for clinical teachers' admission. Next, accord clinical teaching norms and documents. In addition, clinical teaching assistants are selected from intermediate physician for guiding clinical teachers. Finally, explore the integration of clinical teaching mood for training between undergraduates and residents, to promote the connection of clinical teaching for graduates and residents.