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.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.
4.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.
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.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.
7.Study on HPLC fingerprint analysis of Flos Carthami
Xiaoying ZHOU ; Lixin ZHANG ; Liang ZHANG ; Shiyu ZHOU ;
Chinese Traditional Patent Medicine 1992;0(05):-
Objective: To establish the method of fingerprint analysis on Flos Carthami by HPLC. Methods: The HPLC method was used, chromatography conditions were ODS column, CHOH 3 0.4%H 3PO 4 solution (50∶50) as mobile phase and 380nm at detective wavelength. Results: The result showed that 9 peaks (RSD≤3%, n=10 ) were common.Conclusion: This method is reliable, simple and provides a reference standard for the quality control of Flos Carthami.
8.Modeling of a controllable acute regional cerebral ischemia in rats and evaluation with CT perfusion imaging and histopathology
Chenyang LIANG ; Peiyi GAO ; Fang YUAN ; Lixin XU ;
Chinese Journal of Radiology 2001;0(03):-
Objective To establish a stable and controllable model of acute regional cerebral ischemia in rats, and to evaluate it by CT perfusion imaging and histological study. Methods Twenty eight male Wistar rats were randomly divided into 4 groups, and there were 7 rats in each group. The sham operation rats were defined as the first group, rats suffered from cerebral ischemia for 15 minutes were classified as the second group, rats suffered from cerebral ischemia for 30 minutes and then reperfusion for 1 hour as the third group, and rats suffered from hypo perfusion for 6 hours as the fourth group. Cerebral ischemia or hypo perfusion were induced by inserting a nylon thread of different diameter into right middle cerebral artery (MCA) of rats under the monitoring of regional cerebral blood flow (rCBF) by the Laser Doppler Blood Perfusion Monitor (BPM). rCBF was also examined by dynamic CT perfusion imaging. At the end of the observation time, rats were decapitated, and three rats of each group were performed 2,3,5 triphenyltetrazolium chloride (TTC) staining and four rats were performed histological study. Results In the second group, rCBF was controlled within 5% to 22% under the monitoring by BMP and CT perfusion imaging showed the decreased rCBF in 7 rats, but TTC staining showed red appearance indicating no infarction focus formed. Electronic microscopic study revealed astrocytic swelling and a few of neuronal degeneration. In the third group, rCBF was controlled within 4% to 23% under the monitoring by BMP. There were more severe astrocytic swelling and a lot of neuronal degeneration. The abnormal areas in CT perfusion images were the same as TTC staining. In the fourth group, in accordance with less decrease ment of rCBF (from 38% to 55%) in 7 rats, there were obvious astrocytic swelling and subtle neuronal degeneration. TTC stain did not show ischemia area. All these abnormal changes were not observed in the sham operation rats. Conclusion The controllable acute regional cerebral ischemic model in rats is very stable and repeatable. It can be simulated into the ischemic state of different perfusion level. This model is suitable for the research of acute cerebral infarction and regional cerebral ischemia. The facts that parallel changes existed among BMP measurement, CT perfusion imaging, and brain histology indicated that CT perfusion imaging is accurate and sensitive in evaluating acute regional ischemia.
9.Study on Development Strategies for Promoting TCM Service Trades in Gansu Province
Zhonghua LUO ; Ting LIANG ; Xiang ZHANG ; Lixin YUN
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(1):15-19
TCM service trades are an inevitable choice for TCM development, and also one of the most important levels in the national development strategy pattern. For the Belt and Road, it is necessary to promote the rapid development of TCM service trades, not only for promoting transformation cross domain development of TCM industry in Gansu, but also for promoting Gansu economic and social development. Based on the analysis of the significance and opportunities of the TCM service trades, this article proposed the specific strategies for promoting the development of TCM service trades in Gansu Province.
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.