1.Protection of propofoi against ischemia-reperfusion injury in isolated rat hearts
Rongzhi HE ; Yetian CHANG ; Li LI
Chinese Journal of Anesthesiology 1996;0(09):-
Objective: To investigate the effect of propofol on ischemia reperfusion injury in isolated rat heart with the modified Langredorff model. Method: Thirty rats were divided equally into five groups at random. Rat hearts were perfused with Krebs-Henseleik(K-H)buffer for 70 min at a constant pressure of 7.84kPa and constant temperature of 37℃ in control group (group C)and in the other four groups,a three-phase protocal was performed: (1)20-minute preperfusion, (2)30-minute global normothermic(37℃)ischemia, (3)30-minute reperfusion. Treatment with 50?mol/L propofol(group P1),25?mol/L propofol(group P2), 90?g/ml intralipid (group IN )dissolved in K H buffer started 10 minutes before ischemia and throughout the experiment. Only K-H buffer was perfused in the ischemia-reperfusion group(group I-R). The heart rate(HR),left ventricular pressure (IVP)and it's first derivative(?dp/dtmax) and coronory flow (CF)were recorded at the tenth and twentieth minute of preperfusion, and the 30th minute of reperfusion. Creatin kiuase (CK)activity was measured in the coronory effluent at the 30th minute of reperfusion. Result: After 30-minute reperfusion, recovery of hears treated with propofol were better than that of group I-R and group IN,indicated by better contractivity, higher coronory flow and lower CK level (P
2.Content Determination of Berberine in Fujie Lotion by RP-HPLC
Rongzhi LU ; Yunjing LI ; Xueqin LI
China Pharmacy 2007;0(27):-
OBJECTIVE:To develop an RP-HPLC method for the content determination of berberine in Fujie lotion.METHODS:The separation was performed on Agilent 1200 technologies XDB-C18(250 mm?4.6 mm,5?m)column with acetonitrile-0.02%monobasic potassium phosphate(45:55)as mobile phase at flow rate of 1.0 mL?min-1.The UV detection wavelength was set at 265nm.RESULTS:The linear range of berberine were 0.029 6~0.236 8?g(r=0.999 1)with an average recovery of 99.21%(RSD=1.10%,n=9).CONCLUSION:Established method is sensitive,simple,rapid,accurate and reproducible for the quality control of Fujie lotion.
3.Chemical Studies on Peptide-Polysaccharides of Lingzhi (Ganoderma lucidum )
Yunqing HE ; Rongzhi LI ; Tingwei CAI
Chinese Traditional and Herbal Drugs 1994;0(08):-
Two glycan peptides, GLSP2 and GLSP3 were obtained from the hot-water extract of thefruit-body of Ganoderma lucidum. Gel chromatography and HPLC showed that they are bothhomogeueous polysaccharides,with molecular weights of 12800 aud 14100 respectively. Throughthe procedures of total acidic hydrolysis, periodate oxidation, Smith degradation, and spectraldetermination, GLSP2 proved to be a glycan peptide with ? (1→3 ) (1→6 ) and (1→4 )linkage, 26.6% of which is peptide; while GLSP3 proved to be a glycan peptide with ?- (1→6 ) and (1→4 ) linkage, aud the sugar residue ratio in these two bonds is 1∶1. The chain ofGLSP3 has branches, and peptide takes 12.3% 0f it. Basic ?-elimination reaction iudicatedthat the sugar residues in the two glycan peptides are linked with O-bond to serine and threonine on the peptide chain.
4.Application of motivational interview in education on diabetes in special clinics
Min HUANG ; Rongzhi XIE ; Fenling LI ; Shue QU
Modern Clinical Nursing 2014;(7):67-70
Objective To study the effect of motivational interview on health education to patients with diabetes.Methods Fifty patients with diabetes were randomly divided into the control group and the intervention group by using random digit table.The control group was given routine health education and the latter motivational interview.The two groups were compared in terms of self-efficacy and fasting blood sugar and glycated hemoglobin indexes.Result The self-efficacy,fasting blood sugar and glycated hemoglobin indexes in the intervention group were all better than those of the control group(P<0.01).Conclusion Motivational interview can effectively improve the patients’self-efficacy,do good for controling blood sugar level and meanwhile improve the quality of health education.
5.INCREASED SENSITIVITY OF MN TYPING FOR BLOODSTAINS USING A LOW IONIC STRENGTH SOLUTION
Chunying YU ; Rongzhi YANG ; Yah LONG ; Xiaohua LI ; Qingen YANG ;
Chinese Journal of Forensic Medicine 1986;0(01):-
The absorption-elution test using low ionic strength solution (LISS) has been compared with the test using normal saline in MN typing of 258 bloodstain samples stored 1 to 6 years. The accuracy rate was 94.57% using LISS method. The present study indicated that the LISS method is more sensitive than tests carried out in normal saline.
6.Effect of Sleeping Positions Guidance on Deformational Plagiocephaly and/or Brachycephaly in Prematures
Liang MA ; Qing LI ; Lingdan MENG ; Weiwei BING ; Ling LI ; Rongzhi DONG
Chinese Journal of Rehabilitation Theory and Practice 2016;22(5):569-572
Objective To investigate the effect of sleep position guidance on deformational plagiocephaly and/or brachycephaly (DPB) in the prematures. Methods 321 preterm infants in neonatal intensive care unit from October, 2012 to September, 2015 were divided into sleep positions guidance group (n=159) and control group (n=162). The sleep positions guidance group accepted sleeping positions guidance when they were in neonatal intensive care unit and followed up in child care clinic, and the control group accepted routine treatment and nursing. The incidences of DPB were compared. Results The incidences of mild (χ2=6.591, P=0.010), moderate (χ2=4.862, P=0.027) and se-vere (χ2=11.261, P=0.001) DPB were less in the sleep positions guidance group than in the control group. Conclusion Sleeping positions guidance may reduce the incidence of DPB in prematures.
7.Evaluation of long-term-siRNA treatment with HBV transgene mice on inhibit replication of hepatitis B virus
Weiyun ZHANG ; Zhaohui SUN ; Guangli REN ; Yuling SHI ; Wei LI ; Rong ZANG ; Rongzhi TANG
Chinese Journal of Immunology 2014;(5):666-668
Objective:To investigation of the long-term-siRNA treatment with HBV transgene mice on inhibit replication of hepatitis B virus .Methods:The constructed siRNA expressed vectors was transfected HBV transgene mice by hydrodynamics -based in-jection via vena caudalis .Different groups were set including:specificity siRNA groups ( pSilencer5.1/C2,pSilencer4.1/C2,pSilenc-er3.1/C2),PBS group and negative vector group (n=10).The effect was observed in different periods (6 d,21 d,1 months,3 months, 6 months and 9 months after injection ) .HBsAg was analyzed by Chemiluminescence method , HBV-DNA was analyzed by real time quantitative PCR ( RQ-PCR) .Results:Compared with the PBS group , specificity siRNA groups showed decreased levels of HBsAg and HBV-DNA (P<0.05).Negative vector group did not show such changes ,there were no significant differences (P>0.05).Conclu-sion:The siRNA based on the expression vector can suppress the expression and replication of HBV in HBV transgene mice .The inhi-bition effects of long-term-siRNA treatment was specific .
8.In vitro degradation of concentrated growth factor fibrin versus platelet-rich fibrin
Yongbin LI ; Yingchun SUN ; Rongzhi WEI ; Jian YANG ; Haiying SHENG ; Jing CHEN
Chinese Journal of Tissue Engineering Research 2017;21(14):2234-2240
BACKGROUND: The degradation speed of biological materials is critical for the clinical use of guided bone regeneration.The partial biological characteristics and treatment efficacy of concentrate growth factor (CGF) fibrin have been explored preliminarily, but its degradation properties have not yet been reported.OBJECTIVE: To explore the degradation properties of CGF fibrin and platelet-rich fibrin (PRF) in artificial saliva and compare the degradation speed of these two biological products.METHODS: Ten volunteers were selected, and 18 mL of venous blood from each volunteer was extracted and stored in two vacuum blood collectors. The blood samples were then placed into the drum of the Medifuge centrifugal acceleration machine, to separate CGF fibrin and PRF specimens following the preparation process, respectively. Both CGF fibrin and PRF specimens were respectively made into bulk and membranoid, and were then immersed in artificial saliva under 37 ℃. The mass of the bulk specimens and area of the membranoid specimens were measured regularly, and the degradation processes of CGF and PRF were recorded. The degradation curves were drawn to compare the degradation speed of CGF fibrin and PRF.RESULTS AND CONCLUSION: The mass of CGF fibrin and PRF showed no significant difference at the 5th day (P >0.05), while the mass of CGF fibrin was higher than that of PRF at the 3rd, 4th and 6th days (P < 0.05). The residual area of CRF was significantly larger than that of PRF at posttreatment 1-6 days (P < 0.05). To conclude, the degradation speed of bulk or membranoid CRF is slow than that of PRF in artificial saliva. The higher the fibrin content is, the slower the degradation ability is, indicating the strong bioreproductive function.
9.Cervical Lymphadenitis Caused by Candida albicans:A Case Report
Hong SANG ; Rongzhi NI ; Xianping SHEN ; Bo WU ; Jie FU ; Xinhua ZHANG ; Yousheng LI ; Xiaojun ZHOU ; Guiqin SUN ; Xiaogang ZHENG
Chinese Journal of Dermatology 1994;0(05):-
Objective To report the first case of cervical l ymphadenitis caused by Candida albicans in China.Methods A series of clinical,histopatholog ic.and mycologic studies were carried out in an 8year-old-boy with cervical lymphadenitis,who had no definite underlying disease.Candida albicans was isolated fromthe patient.The lymph node was investigated by me ans of culture,pathological and tra nsmission electron microscopic examination and cellular immunology detected by flow cytometer.Results There were several enlarged,warm,a nd fluctuant cervical lymph nodes which varied fr om 1cm?1cm to 4cm?4cm in size.One swo llen node was excised,and Candida albicans was found in the culture.The histopathologic changes of the cervical lym ph node were compatible with chronic granulomatous disease.PAS and methenamine silver(PAM)stain of a touch preparation of the bi opsy specimen revealed budding spores an d pseudohyphae.Lymphopenia with a p roportionate decrease of T-helper a nd T-suppressor cells was shown with flowcytometry.The patient received a combination therapy of surgery,flu conazole,thymosin and so on.After one month,t he patient's condition was improved.Many small lymph nodes disappeared,large lymph nodes became smaller.Tw o months later,only one large lymph n ode could be touched.Conclusion It is the first case of cervical lymphad enitis caused by Candida reported in China.Combination therapy of surgery,fluconazole and thymosin is effective.
10.Expression of CXCR family proteins in different subtypes of breast cancer and their clinical prognosis
Xiaoya WANG ; Bin XIAO ; Yang LIAO ; Rongzhi TANG ; Zhaohui SUN ; Linhai LI
Practical Oncology Journal 2019;33(3):206-210
Objective The aims of this study were to determine the expression of CXCR family proteins in various subtypes and adjacent tissues of breast cancer and its relationship with prognosis,and to provide a reference for clinical diagnosis,treatment and prognosis of breast cancer. Methods The mRNA expressive profiles of CXCR family proteins in paracancerous tissues and different subtypes of breast cancer tissues were obtained from the TCGA(The Cancer Genome Atlas)database. The prognostic survival analysis of each differentially expressed protein was obtained using the PRECOG website. Results Except for CXCR1,the expression of CX-CR family proteins in breast cancer tissues and adjacent tissues was statistically different( P<0. 05). CXCR2P1,CXCR3,CXCR4, CXCR5 and CXCR6 were highly expressed in breast cancer tissues,CXCR2 and CXCR7 were lowly expressed in breast cancer tis-sues. The expressive levels of CXCR3,CXCR4 and CXCR7 were associated with the prognosis of patients. Conclusion The expres-sions of CXCR3,CXCR4 and CXCR7 in breast cancer tissues and adjacent tissues is significantly different,and its expression is related to the prognosis of breast cancer patients,which may be a potential target for molecular diagnosis or targeted therapy of breast cancer.