2.Progress of versican in the occurrence and development of neoplasms
Helin FENG ; Yaheng ZHAO ; Lihua ZHENG ; Jiangang FENG
International Journal of Surgery 2013;40(7):485-488
Versican comes from fibroblasts and belongs to chondroitin sulfate proteoglycan.It distributes in various tissues.The versican have functions including regulate cell growth and differentiation,promote cell proliferation,invasion and metastasis,and stimulate angiogenesis.Experiments have confirmed that the expression of versican is involved in various cancers.Here,the author do an overview of versican in the occurrence and development of breast cancer,liver cancer and chondrosarcoma aimed to further explore the pathogenesis of tumors.
3.Multi-factor binary Logistic regression for early deep venous thrombosis following total hip replacement
Xuehui ZANG ; Zhengang ZHA ; Yonghong FENG ; Lihua GAO ; Hui SUN
Chinese Journal of Tissue Engineering Research 2010;14(17):3054-3057
BACKGROUND: With further understanding of deep venous thrombosis(DVT)following total hip replacement,reduction and prevention of DVT has become hot topic in clinical studies.The reports of DVT formation factors remain controversial due to small samples,little statistical significance,confusion of basic experimental and clinical results and lacks of science.OBJECTIVE: To explore the causes and factors for the early DVT following total hip replacement and summarize measures to prevent and treat early DVT to reduce incidence of complications.METHODS: A total of 1780 cases of primary total hip replacement operation were analyzed retrospectively.The statistical indexes included sex,age,body mass,other system disease,previous hip joint operation,anesthesia,operative time,prosthetic fixation,blood transfusion,postoperative functional exercise,antithrombotics,and complication.Standardized database was built and analyzed by SPSS(version 13).Regression analysis was performed using Binary Logistic Regression.RESULTS AND CONCLUSION: Of 1780 cases,136 had DVT.Age,other system diseases,anesthesia,prosthetic fixation,blood transfusion,postoperative functional exercise and antithrombotics were correlated with early DVT(P < 0.05).Old age,hypertension or diabetes,general anesthesia,fixation of bone cement,whole blood transfusion were the risk factors for early DVT following total hip replacement,while postoperative functional exercise and antithrombotics were the protective factors for DVT.The incidence rate of early complications can be reduced by the methods such as dealing with perioperative treatment carefully,effectively controlling the chronic diseases,efficient evaluation before surgery,precise manipulation,and the postoperative prophylactic treatment and nursing.
4.Neonatal hyperinsulinism/hyperammonemia syndrome
Lihua LI ; Fang LIN ; Jinghan CHI ; Zhichun FENG
Chinese Pediatric Emergency Medicine 2014;21(9):583-585
Neonatal hyperinsulinism/hyperammonemia syndrome is a genetic disease result from glutamate dehydrogenase gene mutations.The clinical manifestations are hypoglycemia,hyperinsulinemia and mild hyperammonemia.Hypoglycemia may occur quickly due to eating protein.It is a rare neonatal disease that was easily ignored or delayed diagnosis and treatment causing serious sequelae of nervous system.This review summarized pathogenesis,clinical manifestation and diagnosis of the disease.
5.Purification and assay of flavonoids in glycyrrhiza
Junsong LI ; Desheng XU ; Yi FENG ; Lihua CHEN
Chinese Traditional Patent Medicine 1992;0(07):-
AIM:To investigate the process parameters of adsorbing and separating the total flavones of Radix et Rhizoma glycyrrhiae and its assay. METHODS: Chalcone that flavanone in Licorice root was converted into in alkaline condition was adopted as index and niaringoside as control,through polyamide treatment,alkaline colorimetty was used to determine chalcone content. RESULTS: Under the condtion,namely, ratio of quantity of Licorice root to polyamide was 2:1,ratio of column diameter to column heighth was 1:7,70%ethanol used to eluate,flavone extract was up to 45%with 90%eluting yield.The recoveny of assaying was 98.17%(RSD=2.00%). CONCLUSION: The purification and assay of Licorice flavonoids are reliable and efficacious.
6.Preparation of total glucosides in paeony sustained-release pellets by fluidized bed coating method
Lihua CHEN ; Desheng XU ; Yi FENG ; Yanlong HONG ; Yihan WANG
Chinese Traditional and Herbal Drugs 1994;0(03):-
Objective To prepare totel glucosides in paeony(TGP) pellets by extrusion-spheronization and to optimize the formulation of TGP sustained-release pellets coated with Eudragit RS 100.Methods The TGP sustained-release pellets were prepared by mini Glatt fluidized bed coating method.The factors to influence the drug release behaviors and their properties were evaluated.Results The optimal TGP sustained-release pellet was shown significant sustained-releasing at the loading weight of copolymers of 6% and the plasticizer concentration of 10%.And the curves of cumulative drug release were fit for Peppas and Higuchi equation.Conclusion The pellets showed an obviously sustained-release effect.
7.Effect of recombinant plasmid pcEgr-p53 stable transfection in combination with X-irradiation on apoptosis and expression of apoptotic proteins in human A549 tumor cells
Lihua DONG ; Yiduo XU ; Feng LIU ; Shouliang GONG
Chinese Journal of Immunology 1985;0(06):-
Objective:To investigate the effect of recombinant plasmid pcEgr-p53 stable transfection in combination with X-ray irradiation on the apoptotic effect and the changes of Bax,Bcl-2 and caspase-3 protein expressions in human A549 tumor cells.Methods:pEgr-hp53 packaged with liposome was stably transfected into A549 cells in vitro.These cells of expressing A549-hp53 and A549-vect were irradiated with 0,0.5,2 and 5 Gy X-rays,respectively,i.e.8 experimental groups.The A549 cells responding to the apoptotic effect and the changes of Bax,Bcl-2 and caspase-3 protein expressions were measured with TUNEL assay and flow cytometry,respectively.Results:The percentage of apoptotic cells in A549-hp53 plus different dose irradiation group were significantly higher than that in 0 Gy group(P
8.Application of PBL mode in family peritoneal dialysis training
Yangxia OU ; Xiaoling FENG ; Shaofang RAO ; Xiaomei LI ; Lihua LU
Chinese Journal of Practical Nursing 2008;24(19):71-73
Objective To explore the application of PBL (Problem - Based learning) mode in fami-ly peritoneal dialysis training to improve the teaching effects of peritoneal dialysis training. Methods The PBL mode was applied in every peritoneal dialysis training lesson, the teaching effects were evalued af-ter a lesson immediately. Results The PBL mode would be helpful to inspire patients' and their family members' interest to learn the knowledge of peritoneal dialysis training.It was also helpful in knowledge un-derstanding, knowledge mastering and establishment of treatment confidence. Conclusions The PBL mode was an important way to improve the teaching effects of peritoneal dialysis training and realize the teaching objective. It is worth applying in practice of peritoneal dialysis training.
9.Bacterial infection distribution and drug sensitivity monitoring In patients with open extremity in-juries caused by Wenchuan earthquake
Du LIU ; Feng ZHANG ; Jan WANG ; Lihua WU ; Huiyu CHEN
Chinese Journal of Trauma 2008;24(7):493-495
Objective To analyze results of bacterial infection distribution and drug sensitivity monitoring in 414 patients with open extremity injuries caused by Wenchuan earthquake so as to provide advices for guiding utility of antibiotics in treatment of patients injured in natural disasters. Methods Bacterial culture of wound secretion substance and drug sensitivity monitoring were done in 414 patients with open extremity injuries. Results There were 12 patients (2.9%) with G+ coccobacteria, 66 (15.9%) with G- bacillus, 2 (0.5%)with G+ bacillus, 6 (1.5%) with multiplicitas infection(5 with dual infection and I with triplication infection). Main pathogenic bacteria were as follows: (1)G+cocco- bacteria including Staphylococcus epidermidis, Staphylococcus aureus and anthropo-staphylococci ; (2) G- bacillus including Aerobacter cloacae, banmanii, escherichia co]i, aerugo pseudomonas, proteusvul- gaffs and Ewingella americana. (3)G+ bacillus including bacillus subtilis. The drugs with high sensi0tivi- ty to G+ coccobacteria included vancomycin, rifampin, levofloxacin and cidomycin, but those with low sensitivity to G+coccobacteria included penicillin, ampicillin and erythremycin. The drugs with high sen- sitivity to G- bacillus included imipenem, amikacin, levofloxaciu and tenebrimycin, but those with low sensitivity to G-bacillus included ampicillin and piperacillin. Conclusions Patients with open ex- tremity injuries caused by earthquake have rather high bacterial infection rate, involving many kinds of in- fection strains. Therefore, we should do bacterial culture and drug sensitivity monitoring of wound excre- tion substance as early as possible to guide rational use of antibiotics.
10.Effects of bypassing the emergency department on outcomes of patients with acute myocardial infarction underwent primary percutaneous coronary intervention
Ruiwei GUO ; Lixia YANG ; Lihua MU ; Feng QI ; Hao LIU
Chinese Journal of Interventional Cardiology 2015;(11):622-625
Objective A retrospective analysis were conducted to identify the effect of bypassing the emergency department on 30-days outcomes of patients with acute myocardial infarction undergone primary percutaneous coronary intervention ( PPCI) . Methods From June 2014 to April 2015, 187 patients underwent PPCI in Kunming General Hospital were included. 13 patients were excluded owing to their incomplete follow-up data. The total 174 patients were divided into two groups: the control group (n =59) who did not bypass the emergency department, and the bypass group ( n = 115) who bypassed the emergency department and directly received PPCI. The data of all patients were collected and analyzed. Results There were no significant differences in baseline characteristics and PPCI related data (including percentage of thrombus aspiration catheter used, length or diameter of stents applied between two groups (all P ﹥ 0. 05) . The bypass group had shorter door-to-ballon ( D2B) than the control group [ (67. 7 ± 21. 5) min vs. (89. 4 ± 23. 6) min, P ﹤ 0. 001] . There were no significant differences in 30-days all-cause mortality, re-myocardial infacrtion and target ressel revascularization (TVR) between the two groups (P ﹥ 0. 05) . Total MACEs rate in the bypass group was lower than in the control group (10. 2% vs. 1. 7% , P = 0. 012) . Logistic regression analysis showed that age, diabetes, pain-to-door (PTD) time and CK peak value were the main influencing factors for 30-day MACEs rate of patients receiving PPCI ( P ﹤0. 05) . Conclusions Bypassing the emergency department can shorten D2B time and reduce 30-days MACEs post-PPCI, but reducing the total ischemic time will be more beneficial to patients with acute myocardial infarction.