1.Changes and clinical significance of serum thyroid hormone and TNF-αin severe patients
Gangyin XIE ; Qiang LI ; Lin YU
Journal of Regional Anatomy and Operative Surgery 2015;(2):146-149
Objective To explore the changes of thyroid hormone and TNF-α in severe patients which occurring under critical illness and to explore the interrelation of these endocrine factors in order to direct clinical therapy. Methods Serum thyroid hormone and TNF-αin 102 severe patients and 80 healthy volunteers were detected by radioimmunoassay and enzymoimmunoassay. The results were analyzed and compared with normal subjects,groups of different prognosis,MODS group and no MODS group. Results TT3,FT4,FT3 levels in severe pa-tients were lower than that in normal subjects(P <0. 01),By contrast,TNF-α level were significantly higher than that of control group (P<0. 01). As the situation became worse,the above changes were more obvious in severe patients as compared with normal subjects. For TT3 and TNF-α level,the differences in the early stages of the disease (3 ~7rd) in the survival group and death group were significant (P<0. 05). Compared with non-MODS group,TT3,FT4,FT3 and TNF-α changed significantly in MODS group(P<0. 05). Conclusion TNF-α and thyroid hormone levels play important roles in the severe patients. The changes of TNF-αand thyroid hormone levels can be used for severe patients prediction and treatment.
2.The effection of high mobility group Box1 protein on septic shock patients with the treatment of glutamine
Gangyin XIE ; Dengwei CHEN ; Qiang LI
Chongqing Medicine 2014;(23):2994-2996
Objective To evaluate the effection of high mobility group box1protein on septic shock patients with the treatment of glutamine and to demonstrate the mechanism of the treatment of glutamine in patients with septic shock .Methods Seventy-two septic shock cases were selected in ICU of the hospital in May 2009 to July 2012 ,and then two groups were randomly divided ,just named control group and experimental group .After the traditional treatment ,such as fluid resuscitation ,antibiotic therapy and the use of breathing machine ,the control group received low-calorie parenteral nutrition and the experimental group received low-calorie parenteral nutrition combined with intravenous injection of glutamine .APACHEⅡscore ,the concentrations of serum glutamine and HMGB1 were detected at 4 different time points before treatment and the 1st ,3rd ,7th day after the treatment ,to analyze the effec-tion of the change of serum HMBD1 on septic shock patients with the treatment of glutamine .Results The serum glutamine and HMGB1 concentrations were detected with RP-HPLC and ELISA respectively .The result showed that with the intra-group com-parison ,APACHEⅡscores of both two groups after the treatment were lower than that before treatment ,and compare with the control ,the APACHEⅡscore of the experimental group was significantly lower .With disease duration increased ,the concentration of serum glutamine(409 .63 ± 158 .74)μmol/L in the control group was significantly decreased from 3 days after treatment ,that in the experimental group from 1 day (503 .92 ± 167 .66)μmol/L were gradually increased .the HMGB1 concentration in the control group did not appear change ,but that in the experimental group from 1 day (29 .24 ± 23 .91)ng/mL was decreased .Meanwhile ,the level of serum HMGB1[(34 .23 ± 23 .69)ng/mL ,(29 .24 ± 23 .91)ng/mL] concentration decreased synchronized with the changes in concentration of serum glutamine[(470 .05 ± 152 .40)μmol/L ,(503 .92 ± 167 .66)μmol/L] .Conclusion the application of Gluta-mine in treatment of septic shock existed positive significance for patients ,which can effectively increased the concentration of serum glutamine and reduced the concentration of HMGB1 ,to improve the prognosis of patients with septic shock .
3.Hemodynamics of Human Arterial Injuries Following Repair With End to End Anastomosis
Qiang XIE ; Yaotian HUANG ; Li ZHAO
Chinese Journal of Orthopaedics 1996;0(09):-
0.05). Conclusion\ The hemodynamic factors and the mean vascular wall shear stress were useful parameters for the evaluation of the effect of vascular repair. Periodical and continuous observations are helpful for predicting the outcome of vascular anastomosis repair.
4.Relationship between expressions of cyclinD1, p16 and retinoblastoma gene protein and prognosis of non-small-cell lung cancer
Baosong XIE ; Qiang LI ; Zhongling LIU
Chinese Journal of Tissue Engineering Research 2005;9(38):158-160
BACKGROUND: Disturbed regulation of cell cycle is the essential mechanism on abnormal proliferation of cell and incidence of cancer. CyclinD1 /cyclin-dependent-kinase pathway involved with p16 and retinoblastoma gene protein is an important.approach on regulation of cell cycle.OBJECTIVE: To understand the expressions of cyclinD1, p16 and retinohlastoma gene protein in non-small-cell lung cancer and probe into the relationship with the prognosis of cancer.DESIGN: Immunohistochemical assay was used to measure the expressions of relevant indexes and follow-up data were utilized for comparative analysis on survival rate and prognostic factor.SETTING: Department of Respiratory Disease, Fujian Provincial Hospital PARTICIPANTS: The experiment was performed in Department of Pathology of Fujian Provincial Hospital from January to June 2002. Tissue specimens of lung cancer were from 68 cases of non-small-cell lung cancer.Histological classification of lung cancer was based on the standards implemented by WHO in 1981 and TNM staging was on the standards revised by International Union Against Cancer (UICC) in 1997.METHODS: Tissue specimens of lung cancer were stained with immunohistochemical method, the positive-stained splices of lung cancer were taken as positive control and those with 1st antibody replaced by phosphate buffer were taken as negative control. The positive was identified if tumor cell nucleus or cytoplasm presented brown-yellow granules. 5 high-power visual fields were observed at randomize in each specimen and 200 tumor cells were counted and the average was obtained. According to the perceptions of positive cell, in which, positive cell count was less by 5% or no obvious positive cell appeared "-", positive cell count was in range from 5% to 20% "+", positive cell count was in range from 21% to 50% "++"and positive cell count was over 50% "(#)", the expression of cyclinD1,p16 and retinoblastoma gene protein in 68 cases of non-small-cell lung cancer were assayed.MAIN OUTCOME MEASURES: Expressions of cyclinD1, p16 and retinoblastoma gene protein and survival phase of patients after operation.retinoblastoma gene protein: The expressive rates were 55.9%, 48.5% and 52.9% respectively. X2 was applied for analysis on the data and it was indicated that there was no remarkable correlation among their expressions.gene protein and prognosis of non-small-cell lung cancer: The average survival phase of cyclinD1 positive expression was shorter than that of negative expression [(12.40, 35.40) months, (x2=5.31 ,P =0.021)]. The average survival phase of positive case of p16 positive expression was longer than that of negative one [(27.84, 15.95) months, (X2=4.38 ,P =0.036)].The average survival phase of positive expression of retinoblastoma gene protein was not more different significantly from the negative one [(18.50,of non-small-cell lung cancer with Cox proportional hazard model: It was indicated that the prognosis of excessive expression of cyclinD1 was poor (P=0.057) and that of p16 only presented 1 prognostic protective factor (P=0.039).CONCLUSION: CyclinD1, p16 and retinoblastoma gene associated with cyclinG1-S regulation are all involved in incidence and development of non-small-cell lung cancer. The assay of expressions of cyclinD1 and p16is essentially significant for prognosis.
5.Relation between expression of cyclin D_1 and biological behavior in non small cell lung cancer
Baosong XIE ; Qiang LI ; Zhongling LIU
Academic Journal of Second Military Medical University 1999;0(12):-
0.05). Tumors metastasized in 10 of 25 primary NSCLC overexpressing cyclin D 1, but only in one of 21 cases that cyclin D 1 negatively expressed ( P
6.Preparation and Pharmacokinetics in Rats of Celecoxib Nanosuspension
Qiuyan LI ; Min WANG ; Peng XIE ; Juntao LI ; Qiang XUE
China Pharmacist 2016;19(2):258-261
Objective:To prepare celecoxib nanosuspension ( CXB-NSs) and study the pharmacokinetics of CXB-NSs in rats. Methods:CXB-NSs were prepared by an anti-solvent precipitation and high pressure homogenization method. The particle size, polydispersion index ( PdI) and zeta potential of the nanosuspension were studied. Totally 12 Wistar rats were randomly divided into CXB-NSs group and CXB suspension group, and gastric drug dose was 100 mg·kg-1 . CXB concentration in plasma was determined by HPLC and the pharmacokinetic parameters were calculated by 3P97 software. Results: The particle size, polydispersion index, zeta potential of CXB-NSs was (442. 5 ± 61. 9) nm, 0. 312 ± 0. 057 and ( -31. 6 ± 3. 9) mV, respectively. AUC (0-t) of CXB suspension and CXB-NSs was (5.13 ±0.77) and (13.51 ±3.18) mg·L-1·h, half time (t1/2) was (12.31 ±1.91) and (12.73 ±1.83) h, Tmax was (2. 48 ± 0. 37) and (1. 41 ± 0. 27) h and Cmax was (0. 94 ± 0. 31) and (2. 38 ± 0. 25) mg·L-1 , respectively. Conclusion:CXB-NSs can remarkably increase bioavailability in rats.
7.Characteristics and risk factors of abdominal lymph node metastasis in esophageal cancer
Tianpeng XIE ; Run XIANG ; Yue CUI ; Xiaojun YANG ; Qiang LI
Chinese Journal of Digestive Surgery 2015;14(12):1002-1005
Objective To investigate the characteristics and risk factors of abdominal lymph node metastasis in thoracic esophageal squamous cell cancer.Methods The clinical data of 586 patients with thoracic esophageal cancer who underwent surgery via transabdominal and transthoracic approaches between June 2009 and June 2014 at the Sichuan Cancer Hospital were retrospectively analyzed.All the patients received resection of esophageal cancer and lymph node dissection, and the transabdominal right thoracic approach or cervico-thoracicabdominal triple incision was selected according to the condition of patients.No.18, 19, 20 lymph nodes were dissected seperately and No.16, 17 and lesser curvature lymph nodes were separated.All the specimens of lymph nodes were detected by regular pathological examination.Measurement data with normal distribution were presented as x ± s and count data were described as rate.Comparisons of rate between 2 specimens and among the multiple specimens were respectively analyzed using the chi-square test and partition of chi-squared.The multivariate analysis was done using the logistic regression.Results The number of lymph node dissected in 586 patients was 12 524 with an average number of 20 ± 11 per case, and the rate of lymph node metastasis was 55.63% (326/586).The number of mediastinal lymph node dissected was 7 012 with an average number of 12 ± 5 per case, and a rate of mediastinal lymph node metastasis was 40.96% (240/586).The number of abdominal lymph node dissected was 5 512 with an average number of 9 ± 8 per case, and a metastasis rate was 31.74% (186/586).The abdominal lymph node metastasis rate of the upper, middle and lower thoracic esophageal cancer were 13.73% (14/102), 31.51% (92/292) and 41.67% (80/192), respectively, showing a significant difference among the above 3 indexes (x2 =25.91, P < 0.05).The lymph node metastasis rate in No.16, 17, 18,19, 20 and lesser curvature lymph nodes were 12.80% (75/586), 16.89% (99/586), 1.71% (10/586),0.68% (4/586), 1.71% (10/586) and 2.05% (12/586), respectively, with a significant difference among the above 6 indexes (x2 =287.95, P < 0.05).The results of univariate analysis showed that the tumor location,surgical procedure, T stage, N stage, G stage, pathological stage and mediastinal lymph node metastasis were risk factors affecting abdominal lymph node metastasis of thoracic esophageal cancer (x2 =24.02, 23.97, 37.87,136.85, 38.79, 7.70, 154.27, P < 0.05).The tumor in the lower thoracic portion, N3 stage and stage Ⅳ were independent risk factors affecting abdominal lymph node metastasis of thoracic esophageal cancer in the multivariate analysis (RR =5.80, 2.36, 2.76, 95% confidence interval: 1.022-1.813, 1.317-3.950, 1.652-12.351, P < 0.05).Conclusions Abdominal lymph node metastasis is common in thoracic esophageal cancer in which No.16 and 17 lymph nodes predominate, and it is easy to occur in patients with lower thoracic esophageal cancer, and advanced N stage and pathological type.
8.Transforming Activity of a Novel Mutant of HPV16 E6E7 Fusion Gene
Qiang XIE ; Zhixiang ZHOU ; Zelin LI ; Yi ZENG
Virologica Sinica 2011;26(3):206-213
An optimized recombinant HPV16 E6E7 fusion gene(HPV16 ofE6E7)was constructed according to codon usage for mammalian cell expression,and a mutant of HPV16 ofE6E7 fusion gene(HPV16 omfE6E7)was generated by site-directed mutagenesis at L57G,C113R for the E6 protein and C24G,E26G for the E7 protein for HPV16 ofE6E7 [patent pending(CN 101100672)].The HPV16 omfE6E7 gene constructed in this work not only lost the transformation capability to NIH 3T3 cells and tumorigenicity in SCID mice,but also maintained very good stability and antigenicity.These results suggests that the HPV16 omfE6E7 gene should undergo further study for application as a safe antigen-specific therapeutic vaccine for HPV16-associated tumors.
9.Relationship between thyroid hormones and renal function after kidney transplantation
Juan LIU ; Wei LIU ; Daihong LI ; Lili XIE ; Qiang GAO
Chinese Journal of Organ Transplantation 2013;(1):9-12
Objective Monitoring the thyroid hormone levels in patients before and after renal transplantation to realize the relationship between thyroid hormones and renal function.Methods Fifty-seven patients were subdivided into stabled graft function group (50 cases) and delayed graft function (DGF) group (7 cases).Thirty healthy men served as control group.Serum triiodothyronine (T3),thyroxine (T4),thyroid-stimulating hormone (TSH) and serum creatinine (Scr) were determined respectably before transplantation and on different days after transplantation.Correlations between thyroid hormones and Scr at 10th day after transplantation were analyzed.Results Serum T3 and T4 levels before transplantation in the two groups were significantly lower than those in the control group (P<0.01).These four parameters levels had no significant difference between stabled graft function group and DGF group (P>0.05).In stabled graft function group:T3 level was decreased obviously by 30% in the 1st day after transplantation,which was higher than the others,elevated at the 1st week post-transplantation,reached the normal range.at the 2nd week post-operation,and higher than pre-transplantation (P < 0.01) at 3rd week; T4 revealed a decrease trend after transplantation and was elevated at 10th day post-transplantation,returned to the pre-transplantation level at 3rd week; TSH had slight decrease after operation,and had no significant difference among every period in comparing with pre-transplantation; Scr revealed a decrease trend continuously and returned to the normal level at the 7th day post-transplantation.In DGF group,Hormones levels were obviously decreased as compared with stabled graft function group; T3 reached the normal range at the 3rd week post-transplantation,whereas T4 returned to pre-transplantation levels at the 30th day; TSH had a significant decrease at the 5th day,and began to increase at the 10th day post-operation; Scr retuned to the normal range at the 30th day post-operation.The correlation coefficients between Scr and T3,T4 were 0.546 and 0.423 respectively.Conclusion There is a significant correlation between thyroid hormones and renal function (T3,T4).Monitoring the thyroid hormones,specially T3,can diagnose renal function change.
10.Radical surgery of lung cancer with chest wall invasion and reliable methods of chest wall reconstruction
Xiang ZHUANG ; Zhaohui WANG ; Qiang LI ; Yangchun XIE
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(2):92-94
Objective To study the efficacy of radical surgery for the invasion of chest wall by lung cancers and the different methods of chest wall reconstruction. Methods A retrospective analysis of clinical data was conducted in 27 cases of lung cancer with chest wall invasion in this hospital. 24 cases received lobectomy, 3 cases received pneumonectomy, and all cases received wall reconstruction. The size of chest wall defect after resection ranged from 6.5 cm × 5.4 cm × 5.0 cm to 15.5 cm × 12.5 cm ×10.0 cm. The number of rib resection for each patient ranged from 1 to 4. The reconstructive methods were as follows: using polyester fabric to reconstruct costal pleura, using plexiglass, stainless steel wire and grid-like titanium plate to reconstruct bone defect, and using nearby muscle flap and pedunculated muscle flap to reconstruct muscle defect. Results Pathologic diagnosis was non-small cell lung cancer,including 22 cases of squamous cell carcinomas and 5 adenocarcinomas. There were pulmonary infections in 6 cases, chest hemorrhage in 1 case and chest purulence in 1 case. One-year survival was 77. 9 %,3-yearsurvival was 58.3 %, and 5-year survival was 29. 1 %. Conclusion The lung cancer with chest wall invasion is advisable to make active use of radical surgery. The different methods and repair materials are chosen to reconstruct the chest wall defect, supplemented by comprehensive treatments.