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.Effect of acclimation training on physiological changes in a randomized controlled trial in hot-humid environment.
Chinese Journal of Applied Physiology 2014;30(6):544-548
OBJECTIVEThis study was aimed to explore the physiological changes and the effect of heat acclimation training via a randomized control trial study.
METHODSForty healthy male volunteers were chosen and divided into experimental group and control group randomly. Those in experimental group received heat acclimation training including but not limited to meditation, unarmed run, yoga, and stepping in hot lab environment. And then, subjective feeling, rectal temperature, average skin temperature, and sweat electrolytes concentration were detected in order to describe their physiological changes. Before and after the training, both groups received some tests and their 3 000 m run-race time, nervous reaction time and subjective perception scores were recorded to evaluate the effect of acclimation training.
RESULTS(1) There was no difference in 3 000 m between the 2 groups in the same environment. Subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in room temperature environment (t = 2.326, P < 0.05). And subjects' 3 000 m race time in experimental group was obviously shortened than that in control group in hot-humid environment (t = 4.518, P < 0.01). (2) Subjects' reaction time (RT) in experimental group was shortened than that in control group in room temperature environment (Z = 11.258, P < 0.05). And Subjects' RT in experimental group was sharply shortened than that in control group in hot-humid environment (Z = 6.519, P < 0.01). (3) No difference between the experimental and control groups was observed in subjective perception score (SPS) in room temperature environment. But subjects' SPS in experimental group was obviously lowered than that in control group and in hot-humid environment (t = 17.958, P < 0.01).(4) Anal temperature (AT) was lowered during training, while the change of mean skin temperature (MST) was not significant. Sweat sodium concentration (SSC) was lowered during training. SPS continued to decrease and entered plateau on the 13th day after training.(5) After acclimation training, the working capacity of the experimental group in hot-humid environment was over 85% of that in room temperature environment. While subjects' working capacity in control group in hot-humid environment was about 80% of that in room temperature environment.
CONCLUSIONHot-humid environment acclimation training improved the working capacity. After training, subjects' working capacity in hot-humid environment remained over 85% of that in room temperature environment, which was higher than that of those subjects who did not take part in training.
Acclimatization ; physiology ; Body Temperature ; Heart Rate ; Hot Temperature ; Humans ; Humidity ; Male ; Physical Conditioning, Human ; physiology ; Sweating
3.A comparative study of reform in the property rights of public hospitals and state-owned enterprises
Jiangbo BAO ; Yong ZHANG ; Lei ZHANG
Chinese Journal of Hospital Administration 1998;0(11):-
Objective To sum up experience and lessons in the reform of the property rights of state-owned enterprises and explore policies and measures appropriate for reform in the property rights of the medical and health system. Methods Such methods as retrospective analysis, literature search and two-level data collection were used to gather relevant information and then comparisons were made of the major differences in the reform of the property rights of public hospitals and state-owned enterprises with regard to external environment, internal structure, reform progress, and changes in property rights. Results Due to the unique features of the medical and health industry, reform in the property rights of public hospitals proved to be different from that of state-owned enterprises, with the former displaying specific characteristics in the mainstay of competition, development of the elements market, and rules and manners of competition, all of which must be handled carefully. Conclusion Improvement of the external environment of competition ought to be the focus of reform in the property rights of public hospitals.
4.Dose-dependent effects of daidzein in regulating bone formation through estrogen receptors and peroxisome proliferator-activated receptor γ.
Lei BAO ; Shien ZOU ; Shaofen ZHANG
Journal of Integrative Medicine 2011;9(2):165-72
To investigate different doses of daidzein (DAI) in regulating bone formation of osteoblasts, and the regulating mechanisms of estrogen receptors (ERs) and peroxisome proliferator-activated receptor γ (PPARγ) in bone formation.
5.Discussion on cultivation of scientific research ability of postgraduates in neurosurgery depart-ment
Bao YANG ; Lei WANG ; Maozhi ZHANG
Chinese Journal of Medical Education Research 2013;(12):1226-1228
Cultivation of scientific research ability for postgraduates in neurosurgery department find expression in morality education, scientific spirit culture, scientific research objective propagan-da, review writing, data analysis and thesis writing, etc. Cultivation of scientific research ability and cultivation of clinical skill supplement each other and both can improve the research ability of post-graduates in neurosurgery department.
6.Clinicopathologic features,surgical methods and prognosis in peripheral<2 cm(of diameter) non-small cell lung cancer
Chun-Lei SHI ; Xue-Yan ZHANG ; Bao-Hui HAN ;
China Oncology 2000;0(06):-
1.0~(?)1.5 cm(14.81%)(P=0.10).There was no lymph node metastasis in tumors less than 1.0 cm in diameter. The 5-year survival rates for cases with or without lymph node involvement were 92.31% and 60.0%,respectively,the difference was significant(P=0.000).The 5-year survival rates of 12 patients showing ground-glass opacity(GGO)on chest CT was 91.67% without any lymph node involvement.Conclusions:There is mediastinal and hilar lymph node involvement even with tumor diameter less than 2 cm.The results of the present study suggested that routine lymph node dissection is necessary even for cases with tumor diameter less than 2 cm.However,if the tumor is within 1.0 cm in diameter with obvious GGO showing on chest CT,these are good candidates for partial resection without mediastinal lymph node dissection.
7.Preliminary study on value of lymphocyte function detection in diagnosis and therapy of Henoch-Schonlein purpura
Lijuan BAO ; Wenli LI ; Lei PI ; Baidu ZHANG
International Journal of Laboratory Medicine 2017;38(7):890-891,894
Objective To investigate the changes of peripheral blood lymphocyte function in the children patients with acute phase of Henoch-Schonlein purpura(HSP),and to explore its significance in the diagnosis and therapy of HSP.Methods The peripheral blood lymphocytes subsets CD3+,CD4+,CD8+,CD4+/CD8+,CD19+ and NK cells(CD16++ CD56+) were detected in 51 children patients with acute phase of HSP and 40 children undergoing physical examination by flow cytometry(FCM Results Compared with the control group,the counts of peripheral blood CD4+,CD4+/ CD8+and NK cells CD16++ CD56+) in the acute stage of the HSP group were significantly decreased(P<0.01),while the proportions of CD8+ and CD19+cells were significantly increased(P<0.05,P<0.01).Conclusion The immunity dysfunction exists in the children patients with acute phase of HSP.The peripheral blood lymphocyte function detection has an important significance for the early diagnosis and treatment of HSP.
8.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.
9.Application of seaweed polysaccharide-agarose dressing to animal skin regeneration
Lei BAO ; Jianyan HUANG ; Lingmin ZHANG ; Bin CHU ; Shunqing TANG
Chinese Journal of Tissue Engineering Research 2010;14(8):1369-1371
BACKGROUND: It has vedfied that seaweed polysacchande-agarose modifiers have their medical application value. OBJECTIVE: To perform skin regeneration trials using sprayable activated agarose/gelatin solution, and to explore the possibility of egarose modifier as skin dressing for skin regeneration. METHODS: To prepare 3% sprayable mixture with the dissolved activated agarose and gelatin at a certain ratio, and then filtrated with millopore for sterilization to prepare activated agarose (egarose degradation for 8 hours) and gelatin degradation, and made into different ratios (1: 0, 1: 1, 1: 2, 1: 3). A total of four rabbits were obtained, and four sites were selected on the back of each rabbit, totally 16 experimental sites. The sprayable activated agarose/gelatin mixture (1: 1, 1: 2, 1: 3) was directly sprayed on the four lesion sites. Sprayable activated agarose for two sites and simple gelatin for two sites served as controls. The effects of the wounds sprayed with,dressing were observed at 4 weeks following surgery. RESULTS AND CONCLUSION: At 7 days following surgery, the cover film had broken in mixture of activated agarose and gelatin at 1: 3, and remaining three were intact. No infection or inflammation occurred in wound of four ratios. Following comparison, the wound was rapidly healed in 1: 2 ratio dressing. The additional gelatin showed promoting effects on wound healing significantly. Hematoxylin-eosin staining demonstrated that skin with the dressing was similar to autologous skin, which verified that sprayable activated agarose/gelatin have a premise in skin regeneration.
10.Expression and Correlation of Sex Hormone-binding Globulin,Insulin Signal Transduction and Glucose Transporter Proteins in the Gestational Diabetes Mellitus Placental Tissue
Bao ZHANG ; Lei SUN ; Yang ZHENG ; Jiexuan JIANG ; Zhen JIN
Journal of China Medical University 2017;46(2):97-102
Objective To study the expression of sex hormone-binding globulin(SHBG),insulin signaling pathway and glucose transporter in placenta of pregnant women with gestational diabetes mellitus(GDM),and to explore its role in the pathogenesis of GDM. Methods A total of 10 full-term and non-obese(BMI<25 kg/m2)pregnancy women diagnosed with GDM and 10 normal pregnant cases were recruited for the study. Placental tissues were collected respectively. The expression of protein and mRNA of SHBG and insulin signal transduction(IRS-1,ISR-2,PI3K p85α)and glucose transporter proteins(GLUT-1,GLUT-3,GLUT-4)in placental tissue were detected by real-time PCR and Western blotting. Pearson and linear regression analysis were used to evaluate the correlation among the related indicators. Results In the placental tissue of non-obese women,there existed a decrease(P<0.05)in the expression of protein and mRNA of SHBG with a concurrent a decrease(P<0.05)in the expression of protein and mRNA of GLUT-4 in GDM women compared with normal controls. Furthermore ,a decrease(P<0.05)of GLUT-3 and IRS-1 protein expression with lower(P<0.05)IRS-2 mRNA expression was also observed in placental tissue from GDM patients. No changes were found in PI3K p85α and GLUT-1 at both protein and mRNA levels(P>0.05). Results of linear correlation analysis showed that there were positive correlations between SHBG mRNA and IRS-2 mRNA(P<0.05),SHBG mRNA and PI3K p85α mRNA(P<0.05),and SHBG mRNA and GLUT-4 mRNA(P<0.05). There was also a remarkable positive correlation between IRS-2 mRNA and GLUT-4 mRNA(P<0.01). There existed negative correlations between IRS-1 mRNA and PI3K p85α mRNA(P<0.05),and IRS-1 mRNA and GLUT-3 mRNA(P<0.05). There existed a remarkable positive correlation between IRS-2 mRNA and GLUT-1 mRNA(P<0.01). Conclusion The defective receptors of insulin signaling pathway are present in GDM placental tissue. Decreased expression of SHBG may be involved in the regulation insulin signaling ,leading to a concomitant decrease expression of relevant insulin signaling components in placental tissue ,implying insulin resistance and developing GDM finally.