1.Comparison of prognostic factors and outcome of patients with advanced cervical cancer between Han and Uygur in Xinjiang district
Chinese Journal of Radiation Oncology 2012;(6):540-542
Objective To compare the treatment outcome and prognostic factors in patients with advanced cervical cervical cancer between Han and Uygur in Xinjiang district.Methods 204 patients with advanced cervical cancer were retrospectively analyzed.Eighty patients were Han 80 and 124 were Uyghur.100 patients received radiotherapy alone and 49 with concurrent radiochemotherapy,and 55 had brachytherapy followed by surgery.The survival rate was calculated by Kaplan-Meier method and the difference was compared by Logrank test.Multivariate analysis was performed using Cox regression model.Results The follow-up rate was 97.5%.The number of patients with at least 5 years of follow up was 102.The 1-,3-and 5-year overall survival rates in Han and Uygur patients were 81.2%,66.3%,51.4% and 83.4%,62.8%,49.2%,respectively (x2 =3.21,P =0.273).Univariate analysis showed that parity,geographical distribution,pathological type,clinical stage,lymph node involvement and treatment were prognostic factors for overall survival (x2 =2.35,11.34,7.12,6.73,4.79,13.60,P=0.049,0.029,0.031,0.037,0.041,0.021).Multivariate analysis showed that parity,geographical distribution,pathological type,clinical stage,lymph node involvement and treatment were independent prognostic factors for overall survival (x2 =8.36,24.94,10.69,5.63,9.50,P =0.002,0.001,0.021,0.018,0.031).Conclusions There is no significant difference in overall survival rate of patients with advanced cervical cancer between Han and Uighur.Patients with parity more than or equal to 3 times,advanced clinical stage or adenocarcinoma have poor prognoses.
2.Application of mesenchymal stem cells in articular cartilage tissue engineering
Chinese Journal of Tissue Engineering Research 2014;(45):7342-7347
BACKGROUND:The development of tissue engineering techniques provides new methods and ideas for the repair and functional reconstruction of articular cartilage defects.
OBJECTIVE:To summarize the research progress in the application of mesenchymal stem cel s, as seed cel s, in articular cartilage tissue engineering.
METHODS:A computer-based retrieval was performed to search articles describing articular cartilage tissue engineering and mesenchymal stem cel s published between January 1st, 2000 and September 30th, 2014 in PubMed database with the key words of“articular cartilage defects;cartilage tissue engineering;mesenchymal stem cel s”in English. Seventy articles were retrieved initial y, and only 49 were included in further analysis.
RESULTS AND CONCLUSION:The ability of the articular cartilage for defect self-repair is limited, and current clinical treatments cannot be satisfactory. Development of tissue engineering provides a new idea for problem-solving. In the selection of seed cel s, chondrocyte is limited to dedifferentiate, and embryonic stem cel is restricted by ethical, legal and other aspects. Autologous mesenchymal stem cel s, which are easy to be amplified
and exhibit excel ent cartilage differentiation potential, have gained widespread attention. But there is stil some controversy on the current application of tissue engineering techniques for repair of articular cartilage defects, including a certain gap between the long-term effects and the clinical applications. So the effect of mesenchymal stem cel s on biological structure and mechanical function stil needs further studies.
3.Clinical observation of combined chemoradiotherapy treatment on advanced esophageal carcinoma
Haipeng ZHU ; Yongxing BAO ; Chun ZHANG
Cancer Research and Clinic 2007;19(z1):19-22
Objective To observe the effect of radiotherapy and chemoradiotherapy in patients with esophageal cancer and analyze the associated factors of surviving with esophageal patients.Methods 60 cases were retrospectively analyzed in the study.They were divided into two groups according to the treatment methods,radiotherapy(RT)group and chemoraidiotherapy(CRT)group.The group CRT was divided into concurrent chemoraidiotherapy(CCRT)group and sequence chemoraidiotherapy(SCRT)group.The group RT and group CRT all use 6mvX line conventional therapy,common fraction 200 Gy/f,DT 60 to 70 Gy,Group CRT combine the chemotherapy concurrent or after radiotherapy.Results The 1,2,3 year survival rate of the group CRT and the group RT are 73.30%,46.70%,16.67%and 60.30%,16.67%,6.67% respectively,2 year survival of group CRT is beaer than group RT(P<0.05).(2)The 1,2,3 year survival rate of the group SCRT and CCRT are 88.89%,55.55%,22.22% and 84.21%,47.37%,15.79% respectively.The short-term side-effect is more serious,the patients could bear.The prognosis of the esophageal carcinoma is closely associated with treatment methods and clinical stage.Conclusion Chemotherapy combined with radiotherapy for advanced esophageal cancer improved the survival.Chemoradiotherapy is an effective treatment for advanced esophageal carcinoma,diagnosis and treatments in early stage are especially important.
4.Clinical analysis of three-dimensional conformal radiotherapy plus chemotherapy for locally advanced non-small cell lung cancer:study of 56 patients
Ge SHANG ; Yongxing BAO ; Li ZHANG
Chinese Journal of Radiation Oncology 2011;20(3):189-192
Objective To analyze the efficacy,complications and prognostic factors of three-dimensional conformal radiotherapy(3 DCRT)for locally advanced non-small cell lung cancer(NSCLC).Methods 56 patients who were treated either by radiotherapy alone(14 patients)or radiotherapy plus chemotherapy(42 patients)from Jan.2005 to Feb.2008 were enrolled.The patient cohort consisted of 36 men and 20 women,median age 62,median total dose 60 Gy.Results The following-up rate was 96%.The number of patients completed follow-up were 14 and 10,respectively at 3-year and 5-year.The response rate of 3DCRT was 70%.with complete mmission 9%and partial remission 61%.The 1-、3-、and 5-.year survival rates were 62%、25% and 17%,respectively,and the median survival time(MST)was 20 months.By logrank test,clinical stage,KPS perfomance,tumor volume,radiation dose,treatment regimen and response to treatment showed statistically dramatic impact on overall survival.By Cox muhivariable regression,the independent adverse prognostic factors by both univariate analysis and multivariate analysis were clinical stage,treatment type,and response to treatment.Grade 2 acute radiation pneumonitis was observed in 1 patient and grade 3 in 1 patient.Late grade 2 lung injury developed in 1 patient,and grade 3 in 1 patient.Acute grade 1 radiation esophagitis were observed in 20 patients.and above Grade 2 in 5patients.Acute grade 1+2 hematologic toxicity developed in 15 patients,and above Grade 2 developed in 4 patients.Conclusions 3 DCRT was feasible in the treatment of locally advanced NSCLC with acceptable normal tissue toxicity.Relative early stage.radio-chemotherapy with total radiation dosage≥60 Gy and good immediate tumor response are favorable prognostic factors for overall survival.
5.Sufentanil combined with lornoxicam for analgesia after uvulopalatopharyngoplasty surgery
Yongxing SUN ; Xiangjing ZHANG ; Tianzuo LI
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(06):-
OBJECTIVE To evaluate theanalgesic efficiency and safety of patient-controlled intravenous analgesia (PCIA) with sufentanil, lornoxicam and sufentanil combined with lornoxicam after Han-uvulopalatopharyngoplasty (H-UPPP) surgery. METHODS Sixty patients after H-UPPP surgery for PCIA were randomly divided into three groups: group S (sufentanil 2.0 ?g/kg), group L (lornoxicam 0.5 mg/kg) and group SL (sufentanil 1.0 ?g/kg + lornoxicam 0.4 mg/kg). The efficiency of analgesia was assessed by VAS (visual analogue scale) and Ramsay score at 2, 6, 12, 24, 48 hours after PCIA. The MAP, HR, SpO2 and side effects were also recorded. RESULTS Group S and SL showed good pain relief and sedation. In Group L VAS score was higher but Ramsay score was lower than that of group S and SL at 2, 6, 12 hours after PCIA (P
6.Effects of intrathecal H89 on phosphorylation of cAMP element binding protein in the spinal dorsal horn neurons hiduced by chronic constriction injury to sciatic nerve in rats
Yongxing YAO ; Licai ZHANG ; Xuejun SONG
Chinese Journal of Anesthesiology 1994;0(05):-
Objective To investigate the effects of a highly selective protein kinase A (PKA) inhibitor, H89, injected intrathecally (IT) on hyperalgesia and phosphorylation of cAMP element binding protein(pCREB) in the dorsal horn neurons of the spinal cord induced by chronic constriction injury (CCI) to the sciatic nerve.Methods Fifty-eight adult female SD rats weighing 230-270 g were used in this study. CCI was produced by 4 loose ligatures place on the sciatic nerve of right hind leg at 1 mm interspace with 3-0 silk suture. The experiment was carried out in two parts. In part Ⅰ 28 animals were randomized to receive H89 1 (group H1), 2 (group H2 ) or 4 nmol (group H4) or 10 ?l of DMSO (the solvent) 10mmol?L-1 (control group) intrathecally (IT) (n = 7 each) 7 days after surgery. The paw-withdrawal latency following mechanical (MWL) and thermal stimulation (TWL) were recorded before (baseline) and 15, 30 and 60 min after drug administration. In part Ⅱ 24 rats were randomized to receive H89 1, 2 or 4 nmol or 10 ?l of DMSO 10 mmol?L-1 IT as in part Ⅰ (group H1, H2, H4 and control group, n = 6 each) . Another 6 animals received 10 ?l of DMSO 10 mmol?L IT 7 days after sham operation. The animals were killed 30 min after drug administration and lumbar (L4.5) segment of spinal cord was removed for determination of pCREB expression in the dorsal horn neurons of spinal cord using immuno-histochemical technique. Results MWL and TWL were significantly increased after drug administration in group H2(at 15min) and group H4(at 15 and 30 min) as compared to the baseline values(P
7.Influence of different P_(ET)CO_2 on the quantitative EEG and auditory evoked potential hides during inhalation anesthesia
Yongxing SUN ; Xuesong ZHANG ; Ping LI
Chinese Journal of Anesthesiology 1995;0(12):-
Objective To investigate the effect of different end-tidal PCO2 (PETCO2) on the quantitative electro-encephalogram (qEEG) and auditory evoked potential index (AAI) in patient undergoing elective general surgery under inhalation anesthesia. Methods Thirty-eight ASA Ⅰ-Ⅱ patients aged 22-48 yrs weighing 49-79 kg undergoing elective general surgery under inhalation anesthesia were studied. The intra-operative blood-loss was expected to be
8.Prophylactic cranial irradiation for non-small cell lung cancer: a systematic review
Ge BAI ; Jianqing ZHANG ; Mei YANG ; Yongxing BAO ; Li ZHANG
Chinese Journal of Radiation Oncology 2012;21(5):432-435
ObjectiveTo determine whether prophylactic cranial irradiation (PCI) has a role in the management of patients with non-small cell lung carcinoma (NSCLC)treated with radical intent.MethodsWe searched The Cochrane Library,MEDLINE,EMbase,CBM,CNKI and VIP.The quality of the includedstudieswascriticallyevaluated.Dataanalyseswereperformed usingtheCochrane Collaboration's RevMan 5.1 software.ResultsFour randomized controlled trials involving 905 patients met the inclusion criteria.The results meta-analyses showed the incidence of brain metastases was lower in PCI group compared with the observation group ( x2 =1.98,P =0.000 ) ; but there is no evidence of 1-year overall survival (OS) benefit ( x2 =1.12,P =0.880).Only RTOG 2009 provides prospective data:There were no significant differences in global cognitive function (P =0.600) or ADL ( P =0.880) after PCI,but there was a significant decline in immediate recall (P=0.030) and delayed recall (P =0.008 ) at 1 year,At 1 year,there was no significant differences in QOL after PCI ( P =0.050).Conclusions This systematic review show significantly decreases the risk of BM without improving 1-year OS in NSCLC patient receiving prophylactic cranial irradiation.There is insufficient evidence to support the use of PCI in clinical practice.Where possible,patients should be offered entry into a clinical trial.
9.Study on diffusion-weighted imaging as a predictive marker for chemoradiotherapy response in cervical canc-er patients
Shunzhuang ZHANG ; Zhoupeng MA ; Yongxing MIAO ; Jianjun ZHOU
Chinese Journal of Primary Medicine and Pharmacy 2014;(9):1305-1306
Objective To observe the relationship between diffusion-weighted imaging ( DWI) characteristics and chemoradiotherapy response in recurrence patients with radical hysterectomy .Methods 26 recurrence patients with radical hysterectomy were included .All underwent conventional MRI and DWI before and after chemoradiotherapy . Baseline tumor characteristics including recurrence site ,gross tumor volume ,necrotic area and the ADC value were re-corded.Focal regions of restricted diffusion were delineated as a separate ROI and ADC value was determined .Ima-ging features were compared between complete response group and partial response group .Results 12 patients had complete response ( CR group ) ,14 patients had partial response ( PR group ) .ADC valueafter chemoradiotherapy was significantly higher than that before chemoradiotherapy in PR patients .Compared with CR group ,PR group had a grea-ter gross tumor volume ,higher ADC value and more focal regions of restricted diffusion .Recurrence type and necrotic areas was no significant differences .Conclusion ADC value and focal regions of restricted diffusion adquired by DWI help to determine chemoradiotherapy response in recurrence patients with radical hysterectomy ,which is helpful for clinicians to predic treatment effect early .It has great significance for developing reasonable programs and impro-ving the therapeutic effect .
10.Dosimetric comparison of postoperative intensity-modulated radiotherapy for stage Ⅱ - Ⅲ rectal cancer
Rui MAO ; Ge SHANG ; Yuefen ZHANG ; Lei XIAO ; Yongxing BAO
Chinese Journal of Radiation Oncology 2011;20(5):411-413
ObjectiveTo explore the optimal method of protecting bone marrow in postoperative concurrent chemoradiotherapy of stage Ⅱ - Ⅲ rectal cancer by comparing two techniques of intensitymodulated radiotherapy (IMRT). MethodsFifteen patients with stage Ⅱ - Ⅲ rectal cancer after surgery had CT simulation. Clinical target volume, small bowel, bladder and bone marrow were contoured. Two IMRT treatment plannings with and without bone marrow-sparing (BMS-IMRT and IMRT) were separately designed. The dose distribution was compared based on that 95% of the planning target volume received the prescribed dose. ResultsBMS-IMRT had an advantage over IMRT in terms of conformity indices ( 1. 06∶1. 04, t =- 2. 61, P =0. 023 ), but inferior to I M RT for homogeneity indices ( 0. 81 : 0. 75, t =- 2. 34, P =0.037)).Compared with IMRT, BMS-IMRT reduced the V5, V10, V20, V30, V40 of bone marrow (97.09%∶98.72%, t=-2.34, P=0.037;92.38%∶96.46%, t=-2.41, P=0.033;83.36%∶91.70%, t=-3. 18, P=0.008;51.47%∶69.65%, t=-4.92, P=0.000;36.34%∶49.57%, t=-2.66, P =0. 021 ). The doses received by small bowel and bladder were similar between BMS-IMRT and IMRT, except that the V20 of bladder was lower in BMS-IMRT (77. 32%∶92. 39%, t =-3.52, P=0. 004). Conclusions BMS-IMRT reduces low dose volume of bone marrow without increasing dose to other risk organs.BMS-IMRT might reduce acute hematologic toxicity and increase the feasibility of postoperative concurrent chemoradiotherapy in stage Ⅱ -Ⅲ rectal cancer.