Objective:To explore the value of tumor specific growth factor (TSGF) and combined tumor markers (AFP,CEA,Ft,TSA) in the diagnosis of malignant tumor.Methods:TSGF was measured by chemical method and combined tumor markers by chemical method and ELISA method.The results in 170 cases with malignant tumors and 60 cases with non-tumor patients were analyzed.Results:In cases of single TSGF measurement,the positive rate was 82% in liver carcinoma,87% in lung cancer,and 86% in carcinoma of stomach,colon,or rectum.The positivity rate of TSGF plus combined tumor marker determination was 97.5%,97.7%,and 97.5% respectively.Conclusion:TSGF plus combined tumor marker determination improve the positivity rate for tumor diagnosis,provide evidence for localization,and promote early diagnosis.

Objective To explore discussion medical treatment in massive hemoptysis emergency surgical treatment.Methods Hemorrhage parts,timing of surgery,pneumonectomy scope in 24 cases of massive hemoptysis were analyzed.Results 24 cases of massive hemoptysis emergency surgical treatment were successful,no death and complication rate was 8.3% (2/24).Conclusion For medical treatment ineffective massive hemoptysis determine the location of the bleeding,actively carry out preoperative preparation, choosing the best opportunity emergency resection of lung disease,can be effective in reducing mortality.

AIM: To study the effects of taurine on ATP sensitive potassium channel (IK_~-ATP ) during hypoxia in single ventricular myocyte. METHODS: The model of myocardial hypoxia was induced by unmixed and saturated nitrogen. IK_~-ATP activities were measured by whole-cell patch clamp recording. RESULTS: Activities of IK_~-ATP in the cell membrane of hypoxia ventricular myocyte significantly increased, compared to that in the normal. Extracellular injection of taurine (5,10,20 mmol/L) inhibited the increase in the IK_~-ATP activity in the hypoxia myocardium in a concentration-depend manner. Injection of taurine also recovered shorten APD during hypoxia. CONCLUSIONS: Taurine produces its cardioprotective effect by inhibiting the activity of IK_~-ATP in the hypoxia cardiomycytes of guinea pig. The results suggest that the depletion of taurine during myocardial hypoxia contributes to the early activation of the K_~ATP channel. [

Objective To analyze X-ray,CT and MRI characteristics of chondroblastoma.Methods Imaging(CT,X-ray and MRI)signs of chondroblastoma confirmed by pathology in 22 cases were analyzed.2 cases and 7 cases underwent contrast-enhanced CT and MRI examination respectivety.Results The lesions were located in tibia(n=11),femur(n=4),patella(n=2),humerus(n=1),temporal(n=1),mandibal(n=1),iliac bone with sacrum(n=1).X-ray manifestations were bone destruction(21),stripe or spotty calcification(5)and patchy sclerosis around the lesion(10).On CT,the lesions were lobular-and-oval(14),density of soft tissue(7)with stripe or spotty calcification(15),patchy sclerosis around(15)and soft tissue swelling(18).Mixed signal intensity on T2WI and FS T2WI,patchy long T1 and long T2 signal intensity around the lesions(20).Conclusion The imaging features of benign chondroblastoma are of certain characteristic and most signs on X-ray,CT and MR are corresponded with each other.

Objective To evaluate the feasibility , toxicity and clinical efficacy of intensity-modulated radiotherapy using the simultaneous integrated boost (SIB- IMRT) and concurrent chemotherapy for advanced nasopharyngeal carcinoma. Methods Thirty nsopharyngeal carcinoma were treated with full course IMRT including nasopharynx and full neck to supraclavicle. The radiotherapy dosage is 68 Gy to the target. Concurrent chemotherapy was given, and the regimen was DDP 40 mg/m2/weekly.Results The mean dose of covering gross tumor volume(PGTV) (D95) in the nasopharynx was 70.48 Gy, and the mean volume of PGTV1 receiving the 95 % dose(V95) was 98. 46 %. The mean dose of PGTV1, PGTV2, PCTV1 and PCTV2 in the targets were 70.8 Gy, 66.4 Gy, 62.3 Gy and 54.8 Gy. According to the evaluation, the acute skin,mucositis and salivary toxicity with grade Ⅲ in those patients were 3.3 %, 10 %, 6.6 %. The patients developed different blood toxicity, but didn't affect their treatment. The median follow-up time was 6.5 months, and disease free survival rate was 100 %. Conclusion SIB-IMRT yields well dose distribution and acceptable toxicity in advanced stage nasopharyngeal carcinoma. The preliminary clinical result is encouraging.

Objective To observe how brain death affects the hepatic morphology and function of pigs and explore the roles of NF-κB. Methods Under general anaesthesia twelve healthy pigs were allocated randomly to two groups:control group(6 pigs),with non-inflacted Foley balloon catheter placed in the cerebral ventricle for 24 h,and brain death group,6 pigs,with estabhshment of brain death for 24 h.The serum and hepatic tissues in the same locus were taken at 6 h,12 h,and 24 h after the initial conformation of brain death.AST and ALT were determined by automatic biochemistry analyzer.IL-1βwas determined by ELISA.The NF-κB mRNA was determined by Real-time PCR and the NF-κB p65 by immunohistochemistry. Results The AST,ALT,IL-1β in serum,the NF-κB mRNA and the NF-κB p65 in hepatic tissues in brain death group were higher than those in control group and they all increased with the time(P<0.05).In brain death group,hepatocytes were edematous lightly after 12 hours,and the swelling progressively deteriorated after 24 hours,but there were no necrosis. Conclusion The activated NF-κB by brain death promoted the synthesis and release of inflammatory mediators,resulting in the hepatic dysfunction.

Objective To investigate the feasibility of simplified intensity-modulated radiotherapy (sIMRT) and concurrent chemotherapy against neck and upper thoracic esophageal carcinoma with lymph node metastasis.Methods sIMRT plans were designed for 44 patients of neck and upper thoracic esophageal carcinoma with lymph node metastasis, 20 of which underwent high dose sIMRT (hsIMRT group) and 24 underwent conventional dose sIM RT (csIMRT group).Three target volumes were defined:PGTVnd, target volume of lymph node lesion, irradiated to 68.1 Gy ( 2.27 Gy × 30 fractions ) for the hsIMRT group, and 60 Gy (2.0 Gy ×30 fractions) the csIMRT group; PTV1, the target volume of primary lesion, to be irradiate to 63.9 Gy (2.13 Gy × 30 fractions) for the hsIMRT group and 60 Gy (2.0 Gy × 30fractions) for the csIMRT group; PTV2 , the prophylacticly irradiated volume, to be irradiated to 54 Gy (1.8 Gy ×30) for both groups.The sIMRT plan included 5 equiangular coplanar beams.All patients received DDP + 5-FU regimen concurrently with radiotherapy at 1 -5 d and 29- 33 d, respectively.Chemotherapy was repeated for two cycles 28 days after the radiotherapy was finished.Results The treatment was completed for all patients within 6 weeks.During the treatment only one patient with grade 3 acute bronchitis was observed in the hsIMRT group.The complete response (CR) rate for the lymph node lesion of the hsIMRT group was 75% ( 15/20 ), significantly higher than that of the csIMRT group [45.8% ( 11/24), x2 = 3.84, P ＜ 0.05].The 1-, 2-, and 3-year progression-free survival rates of the hsIMRT group were 60%, 40%, and 25% , respectively,all significantly higher than those of the csIMRT group (41.7%, 25%, and 8.3% respectively, x2 = 4.11,P ＜ 0.05).However, there were not significant differences in the total survival rate, and the CR and PR of the esophageal lesion between these 2 groups.The major toxicity observed was grade Ⅰ -Ⅱ leukoctyopenia.Conclusions sIMRT generates desirable dose distribution for neck and upper thoracic esophageal carcinoma.hsIMRT has a better short-term efficacy than csIMRT.High dose radiotherapy toward metastatic lymph nodes helps increase progression-free survival.

Objective To analyze the significance of postoperative radiotherapy for lymph node positive patients after radical resection of esophageal carcinoma.Methods Two hundred and sixty patients with esophageal squamous cell cancer,aged ≤70,with the performance status score of0 -1,who had undergone radical resection were divided into 2 equal groups:surgery alone group (Group A ) and surgery plus radiotherapy group (Group B).Group A was classified into 3 sub-groups:Group A1 (n =42)without lymph node involvement,Group A2 (n =43 ) with 1 to 3 involved lymph nodes,and Group A3(n =45) with ≥4 involved lymph nodes.Group B was classified into 3 sub-groups:Group B1 (n =43 )without lymph node involvement,Group B2 (n =44) with 1 to 3 involved lymph nodes,and Group B3(n =43 ) with ≥4 involved lymph nodes.The patients were followed up till death.Results The 1-,3-,and 5-year overall survival rates of Group A were 71.5％,35.4％ and 20％,respectively,all significantly lower than those in Group B (76.2％,48.5％ and 36.2％,respectively,x2 =7.822,P ＜0.05).The 1-,3-,and 5-year survival rates of Groups A1 were 83.3％,52.3％,and 38.1％,respectively,all not significantly different from those of Group B1 (81.3％,58.1％,and 46.5％,respectively,x2 =0.283,P ＞ 0.05 ).The 1-,3-,and 5-year survival rates of Groups A2 were 69.8％,34.9％,and 18.6％,respectively,all significantly lower than those of Group B2 (77.3％,47.7％,and 40.9％,respectively,x2 =4.188,P ＜ 0.05).The 1-,3-,and 5-year survival rates of Groups A3 were 62.2％,20％,and 4.4％,respectively,all significantly lower than those of Group B3 ( 69.8％,39.5％,and 20.9％,respectively,x2 =6.168,P ＜ 0.05).The 5-year metastatic lymph node rates of Groups A1 to A3 were 30.9％,53.4％,and 66.7％,respectively,all significantly higher than those of Groups B1 to B3 ( 11.6％,22.7％,and 30.2％,respectively,x2 =4.753,8.741,and 11.682,respectively,all P ＜0.05).The 5-year distant metastasis rates of Groups A1 to A3 were 11.9％,20.9％,and 31.1％,respectively,all not significantly different from those of Groups B1 to B3 (13.9％,20.4％,and 25.6％,respectively,x2 =0.079,0.003,and 0.203,respectively,all P ＞ 0.05 ).Conclusions Postoperative radiotherapy increases the survival rate of lymph node positive patients,but shows little efficacy on the lymph node negative patients.It reduces the occurrence of lymph node metastasis,even in the lymph node negative patients,and does not increase the morbidity of complications,especially that of anastomotic stenosis.The number of metastatic lymph node is one of the important factors affecting the survival of esophageal carcinoma.Distant metastasis increases along with the number of metastatic lymph nodes.

Objective To investigate the effect of recombinant plasmid pshRNA-DNMT3b on expression of DNMT3b mRNA and protein and on the proliferation of bladder cancer T24 cells,and research the function of DNMT3b in the process of bladder tumor formation.Methods There were three groups in this study,which are blank controller,HK and pshRNA-DNMT3b(24h,48h,72h),respectively.T24 cells were cultured routinely and transfected by the recombinant plasmids with lipfectamine 2000.The cells were detected by methods of RT-PCR,western blot and MTT.The varying level of DNMT3b mRNA and expression protein,and the conditions of cellular survival rate were observed.Results The recombinant plasmids were successfully transfected into T24 cell lines.The grey valHe of RT-PCR elctrophoretogram was analyzed by the software of Gel-pro analyzer,the rate of blank controller,HK and pshRNA-DNMT3b(24h,48h,72h),was (99.56±1.24)%,(99.12±1.35)%,(75.77±1.42)%,(44.69±1.05)%and(20.52±0.89)%,respectively.The analytical resuit of western blot image was(99.43±1.28)%,(98.90±1.31)%,(67.83±1.02)%,(43.43±1.05)%and(21.92±0.89)%.There was no statistically difference in survival between blank control and HK(P＞0.05).The group of pshRNA-DNMT3b and other two groups had statistical difference only at the 72th hour and the cell inhibitory growth rate only increase 0.45%.Conclusions The recombinant ptasmid pshRNA-DNMT3b can inhibit the expression of mRNA and protein of DNMT3b effectively.However,it has slight function on inhibiting cell proliferation.

Objective:To introduce a 2-stage treatment protocol for the management of temporomandibular joint ankylosis with sec-ondary deformities in adults.Methods:24 adult patients (9 males and 15 female)(30 joints)at the average age of 26.1 years un-derwent TMJ reconstruction as the initial surgery,followed by orthodontic treatment and correction of secondary deformities as the sec-ond surgery.Clinical outcome was assessed based on maximal incisal opening,radiography and medical photography.Results:Skele-tal deformities were significantly improved in all patients,satisfactory occlusion was achieved with the orthodontic treatment,average maximal incisal opening increased from 3.4 mm to 32.5 mm(P <0.05).Conclusion:The 2-stage treatment protocol is an effective approach for management of TMJ ankylosis with secondary deformities in adult patients.