1.Expression and significance of Skp2 and Cx43 in cervical carcinoma
Zhen LIANG ; Lixin SUN ; Hongwei ZHAO
Cancer Research and Clinic 2010;22(12):840-842
Objective To investigate the expression of Skp2 and Cx43 in cervical carcinoma and to study their relationships and clinical significance. Methods The expression of Skp2 and Cx43 was examined by immunohistochemical method in 48 cases of cervical carcinoma tissue, 84 cases of cervical intraepithelial neoplasia (CINⅠ - Ⅱ 45 cases, CINⅢ 39 cases), 28 cases of chronic cervicitis. Results Skp2 expression in cervical carcinoma was higher than that in the CINⅠ - Ⅱ and chronic cervicitis (P <0.05), Cx43 expression was lower in cervical carcinoma than that in the CINⅢ, CINⅠ - Ⅱ and chronic cervicitis (P <0.05). The expression of Skp2 was correlated with histological differentiation and lymph node metastasis (P <0.05). The expression of Cx43 was correlated with the lymph node metastasis (P <0.05). Besides, the expression of Skp2had a negative correlation with that of Cx43. Conclusion Skp2 and Cx43 may play an important role in the genesis and development of cervical carcinoma.
2.THE EXPLORATION OF STANDARDIZED PROCESSES AND METHODS OF HOSPITAL COST ACCOUNTING
Lixin XU ; Yunping LIANG ; Minji WU
Modern Hospital 2015;15(5):133-135
Based on the study of cost accounting of several large public hospitals in Guangdong Province according to the New Hospital Financial Regulations, the paper presents a detailed operational and standardized cost accounting rules, including the specific processes and methods of cost accounting.It has laid a solid foundation for cost accounting, financial management and medical service pricing in hospitals.
3.The Prevalence of Premenstrual Dysphoric Disorder in Female College Students
Jiyang PAN ; Lixin YANG ; Huajun LIANG
Chinese Mental Health Journal 1991;0(04):-
0.05).Conclusions: (1) The more severe of learning stress, the higher level of PMDD. (2) There was no difference in anxiety and depression between the students who suffered from PMDD and the who didn't. (3) The students who suffered from PMDD had more psychosomatic symptoms.
4.Process Technology for Antipyretic Mixture Screening by Orthogonal Test
Yanyan ZOU ; Liuwen LIANG ; Lixin WANG
Journal of Guangzhou University of Traditional Chinese Medicine 1999;0(02):-
[Objective] To optimize the technology for Antipyretic Mixture (AM), which is mainly composed of Herba Ephedrae, Gypsum Fibrosum (GF), Rhizoma Amenarrhenae, Radix Isatidis, Rhizoma Imperatae, Radix Puerariae, etc. . [Methods] Orthogonal test was applied for the screening of technology. Rat model of fever was induced by dried yeast and body temperature served as the screening index. [Results & Conclusion] The optimal process was as follow: (1) cleaning the herbs and smashing Gypsum Fibrosum into pieces and then soaking for one hour; (2) decocting the herbs with 10-fold water for one hour (Gypsum Fibrosum decocted first for one hour) ; (3) extracting the volatile oil, filtering and then concentrating the decoction; (4) evaporating again the volatile oil; (5) mixing the solutions and preparing as 1 kg/L oral liquid.
5.Changes in myocardial mitochondrial Ca2+ concentration and its mechanism in the early stage of severe burn
Wanyi LIANG ; Lixin TANG ; Zongcheng YANG ; Yuesheng HUANG
Chinese Journal of Pathophysiology 2001;17(6):493-495
AIM:To investigate the change in myocardial mitochondrial Ca2+ concentration ([Ca2+]m) and its mechanism in the early stage of severe burn. METHODS:An experimental model of 30%TBSA full-thickness skin scalding was reproduced in rats. [Ca2+]m, cytosolic Ca2+ concentration ([Ca2+]c) and mitochondrial Ca2+ transport velocity were determined. RESULTS: ① [Ca2+]m increased evidently at 1st hour postburn, and continuously at 3rd hour, reached the peak at 6th hour postburn, then, it decreased at 12th and 24th hour, but remained in higher level than that of the control. ② There was no significant difference in [Ca2+]c between 1st hour postburn and the control, but [Ca2+]c increased evidently at 3rd, 6th, 12th, 24th hour postburn. ③ mitochondrial Ca2+ uptake velocity at 1st hour postburn was higher than that of control, and Ca2+ release velocity didn't change obviously, but both of them were decreased at 3rd, 6th, 12th, 24th hour postburn. ④ [Ca2+]m was positive correlated with [Ca2+]c after burn, and negative correlated with mitochondrial Ca2+ release velocity at 3rd, 6th, 12th, 24th hour postburn, respectively. CONCLUSION: There was obvious Ca2+ overload in myocardial mitochondria after severe burn, the mechanism of which might include ascent of [Ca2+]c and disorder of Ca2+ transport in mitochondria.
6.The change of plasma colloid osmotic pressure and blood coaglulation in percutaneous nephrolithotripsy during anesthesia
Lixin WU ; Jingzhu LIANG ; Zhigang ZHANG ; Quan LING ; Chunyuan ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(19):2603-2604
Objective To provide basis of preventing and treating complications by monitoring plasma colloid osmotic pressure and blood clotting function during anesthesia of percutaneous nephrolithotomy (PCNL).Methods 30 patients with upper urinary calculus were equally and randomly divided into two groups according to the different anesthesia method. In General anesthesia group, Midazolam 0. 1 mg/kg、diprivan 1.5mg/kg、Vecuronium bromide 0. 15mg/kg、fentanyl 4μg/kg were used to guide and forane 1 ~ 1.3MAC were used to keep inhalation anesthesia. In lumbar-epidural anesthesia group T12~12 or T12 ~ L1 epidural anesthesia with 0.75% ropivacaine 8 ~ 10 ml and L2~4 lumbar anesthesia with bupivacaine 10mg were used. Plasma colloid osnotic pressure, central venous pressure and TEG were detected at the beginning and at the end of operation and fluid consumption were compared between the two groups. Results There was no obvious difference between the two groups. In both groups ,COP was obviously reduced and CVP was improved after the operation which significantly different with those pre-operation ( all P <0. 01 ). R value reduced significantly(P <0. 05). There were 10 patients complicated with chilling, unconffortability,or anxiety. Conclusion During anesthesia of percutaneous nephrolithotomy, with operation time going on, COP reduced obviously, which increased the risk of heart failure, pulmonary edema, etc. but had no effect on blood clotting.
7.Laparoscopic proctosigmoidectomy for cavernous hemangioma of the colorectum
Lixin QIU ; Jixiang WU ; Xiuzhi LIANG ; Ying WU
Chinese Journal of General Surgery 2010;25(9):734-736
Objective To study the clinical characteristic and treatment of colorectal cavernous angioma and laparoscopic proctosigmoidectomy in colorectal cavernous angioma. Methods Clinical data of 8 colorectal cavernous angioma cases were analyzed. Results Cavernous hemangioma located in the rectum in 4 cases,in the proctosigmoid in 3 cases,and in the proctosigmoid and descending colon in one case.Under definite diagnosis,all cases underwent laparoscopic colorectomy,the postoperative recovery was satisfactory,and there was no postoperative mortality. Conclusions Colorectal cavernous angioma is rare,and usually be misdiagnosed.It commonly involves sigmoid and rectum.Laparoscopic proctosigmoidectomy is an effective way to deal with the disease.
8.Changes in myocardial mitochondrial Ca~( 2+) concentration and its mechanism in the early stage of severe burn
Wanyi LIANG ; Lixin TANG ; Zongcheng YANG ; Yueshen HUANG
Chinese Journal of Pathophysiology 1989;0(06):-
AIM:To investigate the change in myocardial mitochondrial Ca 2+ concentration ([Ca 2+ ] m) and its mechanism in the early stage of severe burn. METHODS:An experimental model of 30%TBSA full-thickness skin scalding was reproduced in rats. [Ca 2+ ] m, cytosolic Ca 2+ concentration ([Ca 2+ ] c) and mitochondrial Ca 2+ transport velocity were determined. RESULTS: ① [Ca 2+ ] m increased evidently at 1st hour postburn, and continuously at 3rd hour, reached the peak at 6th hour postburn, then, it decreased at 12th and 24th hour, but remained in higher level than that of the control. ② There was no significant difference in [Ca 2+ ] c between 1st hour postburn and the control, but [Ca 2+ ] c increased evidently at 3rd, 6th, 12th, 24th hour postburn. ③ mitochondrial Ca 2+ uptake velocity at 1st hour postburn was higher than that of control, and Ca 2+ release velocity didn't change obviously, but both of them were decreased at 3rd, 6th, 12th, 24th hour postburn. ④ [Ca 2+ ] m was positive correlated with [Ca 2+ ] c after burn, and negative correlated with mitochondrial Ca 2+ release velocity at 3rd, 6th, 12th, 24th hour postburn, respectively. CONCLUSION: There was obvious Ca 2+ overload in myocardial mitochondria after severe burn, the mechanism of which might include ascent of [Ca 2+ ] c and disorder of Ca 2+ transport in mitochondria. [
9.Involvement of mtNOS in the Ca~(2+)-induced damages of myocardial mitochondria during the early stage after severe burns
Wanyi LIANG ; Lixin TANG ; Zongcheng YANG ; Yueshen HUANG
Chinese Journal of Pathophysiology 2000;0(07):-
AIM: To study the role of mitochondrial nitric oxide synthase (mtNOS) in the damages of myocardial mitochondria during the early stage after severe burns.METHODS: An experimental model of 30% TBSA full-thickness skin scalding was reproduced in rats. Myocardial mitochondria were isolated from control and burned rats at 1, 3, 6, 12 and 24 h postburn. The mitochondrial respiratory function, content of mitochondrial calcium([Ca 2+ ] m) and activities of mtNOS and cytochrome c oxidase were determined. RESULTS: (1) Myocardial mitochondrial respiratory control rate(RCR) at 1 h was evidently higher than that of control, but at 3, 6, 12 and 24 h postburn, it was significantly lower than that of the control. The changes in ST 3 is parallel to those of RCR, and ST 4 was evidently increased only at 3 h postburn. (2) [Ca 2+ ] m was higher at all time points postburn and the activity of mtNOS was higher significantly only at 3, 6, 12 and 24 h than that of the control. The activity of cytochrome c oxidase at the 3, 6, 12 and 24 h was low comparing to the control. (3) After severe burns, RCR was negatively correlated with mtNOS activity( r=0.9347, P
10.Independent 3D dose calculation for IMRT based on simplification of beam model and collapsed-cone convolution/superposition algorithm
Jinhan ZHU ; Bin WANG ; Jian LIANG ; Xiaowei LIU ; Lixin CHEN
Chinese Journal of Radiation Oncology 2017;26(7):795-799
Objective To realize independent 3D dose calculation for intensity-modulated radiotherapy (IMRT) by building a two-source beam model of medical linear accelerator combined with a collapsed-cone convolution/superposition (CCCS) algorithm.Methods Two-source beam models of medical linear accelerators (Varian and Elekta) were built to calculate the 3D dose distributions using the CCCS algorithm.Scp,percent depth dose,and off-axis dose distribution were compared with the scanning data of ion chamber to confirm the calculation model.Twelve intensity-modulated treatment plans from each accelerator (a total of 24 plans) were selected for comparison.The calculation results of treatment planning system (TPS) were independently validated,and further compared with the measurement results of detector matrix.Results The dose deviations at the center of rectangle fields were lower than 1%,the deviation between doses at the same position in the field was not higher than 1%,and the positional deviation in the penumbra region was not higher than 1 mm.Gamma analysis based on 3%/3 mm standard was used to compare the results calculated by detectors and TPS.The pass rates were higher than 90%.Conclusions The independent 3D dose calculation for IMRT based on two-source beam model combined with CCCS algorithm has been successfully set up.The comparison between regular field and IMRT plan indicates that this method and calculation model can be used for independent 3D dose calculation of clinical plan.