1.Investigation and control of Acinetobacter baccmannii infection in Burn Ward
Chinese Journal of Nosocomiology 2006;0(07):-
OBJECTIVE To discussion the risk factors of Acinetobacter baumannii infection in Burn ward.METHODS The A.baccmannii infection and risk factors were retrospectively reviewed.RESULTS 1326 strains were isolated of with 72 strains were A.baccmannii(5.43%) and showed serious antimicrobial.CONCLUSIONS The mult-drug resistance of A.baccmannii are high and showld be paid attention to.
2.Differential Expression of Ryanodine Receptors in the Developing Rat Cochlea
Journal of Audiology and Speech Pathology 2009;17(4):358-362
Objective Ryanodine receptor (RyR) is one of the Ca2+ release channels on the intracellular Ca2+ stores. RyR induced-Ca2+ release is activated by the voltage-dependent Ca2+ entry, that is, calcium-induced calcium release (CICR). Intracellular free Ca2+ concentration (ECa2+]i) plays a key role on cochlear function. Our study is to investigate the differential expression of RyR in the developing rat cochlea, and to analyze the relationship between the expression of RyR and auditory functional development. Methods Immature SD rats, which were 1 day (P1), 5 days (P5), 10 days (P10), 14 days (P14), 28 days (P28) after parturition, and adutl rats(5 rats for each age) were included in the study. Frozen cochlea sectioning and immunofluorescence were applied to observe the differential expression of RyR. Results The RyR expression in the Corti's organ increased during the cochlear development. It's not significant that the stain was observed on the hair cells and supporting cells in the Corti's organ of P1 and P5 rats. The appearance of the Corti's organ of P10 rats trended to maturity. In P14 rats the RyR expression on hair cells located in the synaptic area against the afferent or efferent nerve, and the strain on supporting cells was extensive. There was little different between the strain on cochlea of P14 and P28 rats. In postmature rat spiral ganglion neurons (SGN), the RyR expression verged gradually from extensive whole cell soma to the synaptic area near to the plasma membrane. Conclusion The RyR expression peaked the 14th day after parturition, which was close to that in the mature cochlea. The time course of the RyR expression during the cochlear development was coincident with that of the auditory functional development. The RyR expression on both hair cells and SGNs located in the synaptic area near to the plasmolemma, implying that RyR induced-CICR was related to the auditory functions such as neurotransmission. Extensive RyR expression in the soma of SGNs at the early stage possibly involved in apoptosis of SGNs during neuron development.
3.Characteristics and Application of Nano Adjuvant Vaccine
Herald of Medicine 2017;36(6):654-658
Nanometer material have been widely used in a number of fields because of their diversified physical and chemical effects.Owing to their good biocompatibility,well targeting property and high bioavailability,they are considered as a good support for vaccine adjuvant.In short,it has a targeting function to specific parts,can improve the immunogenicity of new vaccine,avoid first-pass metabolism in the liver and then has less side effect.With these advantages,it has shown a proved potential application for disease control and treatment.So some unique properties of nano-materials are reviewed,with a look forward to the future of their application technology in the areas of and medicine.
4.Clinical Pharmacists' Experience with the Use of Antibacterials in Retinopathy Surgical Department
Yufang YANG ; Shan LAO ; Xiaobin ZHONG
China Pharmacy 2007;0(35):-
OBJECTIVE:To discuss the working method for clinical pharmacists in the use of antibacterials in retinopathy surgical department. METHODS:The utilization of antibacterials in surgical department and the experience of the author in the use of antibacterials were analyzed. RESULTS & CONCLUSION:Clinical pharmacists can play an important role in the rational use antibacterials by participating in the perioperative use of antibacterials,treatment of infection cases,and sample collection etc in surgical department.
5.Effect of Smecta on the Pharmacokinetics of Levofloxacin in Rabbits
Yufang YANG ; Mei LI ; Jian LI ; Yanwen ZHOU
China Pharmacy 2007;0(28):-
0.05),but the t1/2 was longer and the AUC and the Cmax were lower in group B than in other groups(P
6.Panax notoginseng saponins can inhibit apoptosis of renal cells induced by cisplatin through path of mitochondrion
Xinwen LIU ; Zhenguang HUNAG ; Yufang YANG ; Yue QIU ; Yan WEN
Chinese Pharmacological Bulletin 2015;(2):216-220,221
Aim To investigate the effects of panax nonstaining saponins ( PNS ) on the apoptosis of renal cells induced by cisplatin through the path of mitochon-drion . Methods Male Sprague-Dawley( SD) rats were randomized divided into normal control group, cisplatin model group and the cisplatin+PNS group,with 12 rats of each group. Animals were sacrificed to determine the N-acetyl-β-D-Glucosaminidase ( NAG ) in urine, blood urea nitrogen ( BUN) and serum creatinine ( Cr) concentrations after 8d of intraperitoneal injection. HE-staining was employed to observe renal pathologies. Transmission electron microscopy ( TEM ) was em-ployed to observe the mitochondria of the rats′ injured kidney region. TUNEL staining was employed to detect the distribution of apoptotic cells. Immunnohistochem-istry was used to detect Bax and caspase-9 expression, and expression of Bcl-2 protein was detected by West-ern blot. Results Compared with the normal control group, contents of BUN, serum Cr and urinary NAG levels of rat in the cisplatin model group were increased ( P <0. 01 ) , and some mitochondria of the epithelial cells of renal tubules got injured seriously. The apopto-sis rate of kidney cell was increased ( P<0. 01 ) . The expression of Bax,caspase-9 and Bcl-2 proteins was in-creased ( P < 0. 01 ) . Compared with the cisplatin model group, contents of BUN, serum Cr and urinary NAG levels of rats in the cisplatin model group were decreased ( P <0. 01 ) , and some mitochondria of the epithelial cells of renal tubules were significantly im-proved. The apoptosis rate of kidney cell was decreased ( P<0. 01 ) . The expression of Bax and caspase-9 pro-tein was decreased (P<0. 01),but Bcl-2 protein was increased ( P < 0. 01 ) . Conclusion PNS may in-crease the expression of Bcl-2 protein and decrease the expression of Bax and caspase-9 proteins, which may play a protective role in cisplatin nephritic damage.
7.Randomized Controlled Trial on Effectiveness of Traditional Chinese Medicine Five Elements Music Therapy in Improving Quality of Life for Senior and Non-senior Advanced Cancer Patients
Juan LIAO ; Yufang HAO ; Yufei YANG ; Chunyan XIANG ; Yu WU
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(6):1379-1382
This study was aimed to evaluate effects of traditional Chinese medicine ( TCM ) five elements music therapy on the quality of life for both senior and non-senior advanced cancer patients , and improve TCM com-prehensive treatment mode . A total of 170 patients were stratified according to 70-year-old in a randomized controlled trial ( RCT ) with a parallel single-blind design . The ratio of patients among three groups was 2:2:1 . In the experimental group , TCM five elements music was given in the treatment . In the positive control group , western music was used in the treatment . And in the negative control group , no music was given in the treat-ment . The treatment was given for 30 min , 5 times per week . And the observation duration was 3 weeks . The Hospice Quality of Life Index-Revised ( HQOLI-R ) , Karnofsky Performance Scale ( KPS ) and Symptom Diary Score recorded by patients were used in the evaluation . The results showed that when comparing HQOLI-R , KPS and Symptom Diary Score before and after treatment among all advanced cancer patients in each group , there was a significant difference before and after treatment in the TCM five elements music therapy group ( P< 0 . 05 ) . But there was no significant difference before and after treatment in the western music therapy group or the negative control group ( P > 0 . 05 ) . It was concluded that TCM five elements music therapy is effective in improving quality of life and subjective symptoms for both senior and non-senior advanced cancer patients . However , the sensitivity of using the Symptom Diary Score as an evaluation index among senior patients still needs to be further proved .
8.Efficacy of rituximab in treatment of children with refractory idiopathic thrombocytopenic purpura
Yufang YUAN ; Wenxia KUAI ; Rong HE ; Xiaochun YANG
Chinese Journal of General Practitioners 2012;11(1):67-69
Fifty children with refractory idiopathic thrombocytopenic purpura (RITP) were treated with rituximab (n =26) or vincristine (n =24).The response rate,adverse reaction and recurrence rate in two groups were compared.The CD19 +/CD20 + B cells in peripheral blood were detected by flow cytometry in 26 patients before and after RITP treatment.The response rates of rituximab group was significantly higher than that of vincristine group ( 69.2% vs. 37.5%,x2 =9.74,P < 0.01 ). There was no significant difference in the rate of adverse reaction between two groups ( 11.5% vs.8.3%,x2 =0.62,P > 0.05 ).The recurrence rate of rituximab group ( 22.2% ) was significantly lower than that of vincristine group (55.6%,x2 =7.24,P < 0.05 ).In rituximab group the platelet count after treatment was significantly higher than that before treatment ( t =12.48,P <0.01 ),and the ratio of CD19 +/CD20 + B cells decreased significantly after treatment compare to that before treatment ( t =6.71,P <0.05 ).Rituximab is effective in treatment of refractory idiopathic thrombocytopenic purpura in children,which may be associated with decreased B cells in peripheral bloos.
9.Studies on injury of endothelial cells by homocysteine
Yufang WANG ; Shuren WANG ; Haiyan CHEN ; Zhimei YANG ; Ling GU
Chinese Journal of Pathophysiology 2001;17(3):268-270
AIM: This study is to detail its possible mechanisms that homocysteine (Hcy) induces injury of cultured endothelial cells.METHODS: Hcy in sequential concentrations was added into the cultured human umbilial vein endothelial cells for 24 hours in serum-free medium. The lipid peroxidation, release of LDH, cell total protein content, cell apoptosis and necrosis were assessed. RESULTS: Hcy increased the apoptosis of endothelial cells.In high Hcy concentration the cells also showed obvious injurious and necrotic morphological changes. Lipid peroxidation increased, with LDH releasing up and cell total protein content down, and they showed a positive dose-effect relationship with the Hcy concentration. All the above effects of Hcy was strengthened by low density lipoprotein (LDL) which may suggest synergetic effects of Hcy and LDL.CONCLUSION: Our results indicate that Hcy has a strong oxidizing effect, which may be one of its major mechanism for injury of EC.
10.Midterm outcome of a half-blind, random, control research : a new therapy that treat hypovascular liver cancer with balloon catheter to block the main artery temporarily, and then pressurize chemoembolization
Yongbo YANG ; Hongyan CHENG ; Liang ZHANG ; Yufang CHEN
Chinese Journal of Radiology 2012;46(8):724-729
Objective To investigate efficacy and effect on liver function of the experimental therapy with balloon catheter to block the main artery temporarily and then pressurize chemoembolization to treat hypovascular liver cancer. Methods Eighty patients with hypovascular liver cancer requiring interventional therapy were randomly divided into two groups.The experimental group was treated with the new therapy and the control group was treated with traditional therapy. The lipiodol-filling status and maximum diameter of the tumor was analyzed for a midterm outcome,and the change of AFP and liver function were evaluated.Mann-Whitney test was used for data between two groups,Friedman test was used for data of each group,and Spearman nonparameter relevant analysis was used for efficacy indexes.Results ( 1 ) All Patients have confirmed diagnosis of hypocvascular liver cancer and got balanced baseline. ( 2 ) Lipiodol-filling status:the clinical efficacy and benefit rates of patients from experimental group were higher than that from control group and showed statistically significant difference in 1,3,12 months (Z =-2.135,- 2.939,- 2.686 ; P =0.034,0.004,0.007 ),but no statistically significant difference in 6 month ( Z =- 1.170,P =0.242 ).The status of lipiodol-filling of experimental group ( x2 =2.593,P =0.459 ) was more stable than control group ( x2 =10.886,P =0.012).(3) Maximum diameter of the tumor:the clinical efficacy and benefit rates of patients from experimental group were higher than that from control group and showed statistically significant difference in 3,12 months ( Z =- 2.734,- 2.733 ; P =0.006,0.006),but no statistically significant difference in 1,6 month ( Z =- 1.692,- 1.895 ;P =0.091,0.058). But neither of two groups showed statistically significant difference in change of maximum diameter of the tumor ( x2 =5.500,P =0.139 ; x2 =6.509,P =0.089 ).Relation between lipiodol-filling and maximum diameter showed positive correlation in 3 month ( r =0.257,P =0.035 ). (4) Stratified analysis was used for data of AFP according to AFP value before therapy,and two groups showed no statistically significant difference for patients belonging to 20-1000 μg/L by Pearson Chi-square test. (5)Two groups showed no statistically significant difference for data of liver function before therapy and in 1,3,6months ( Z =- 1.073,- 1.314,-0.518,-0.549;P=0.308,0.189,0.604,0.583).Conclusions According to the midterm result of this experiment,the experimental therapy increased lipiodol-filling and decreased maximum diameter of the tumor significantly in 3 and 12 months correspondingly,but no significant difference was observed in AFP and liver function between groups yet. So the long-term efficacy and its influence to lung metastasis and survival rate need further research.