1.Expression and significance of survivin and CD44v6 protein in non-small cell lung cancer
Xia WEI ; Zhihong SHI ; Xixiang JI
Journal of International Oncology 2009;36(4):312-315
Objective To investigate the expression and significance of survivin and CD44v6 in non-small cell lung cancer (NSCLC) and their correlation. Methods SP immunohistochemical technique was used to detect the expression of survivin and CD44V6 protein in 53 cases of NSCLC and 13 cases of para-eaneer nor-mal tissues. Results The positive rate of survivin and CD44v6 in NSCLC was 60. 38% and 69. 81% respec-tively,which was higher than that of normal pulmonary tissues adjacent to carcinoma(P <0. 01). The expres-sion of survivin and CD44v6 in NSCLC was related to lymph node metastasis (P < 0. 05), but not to patients' age and gender(P>0.05). The expression of survivin was related to TNM stages and cell differentiation (P <0. 05) ,but not to histology type(P >0. 05). The expression of CD44v6 in squamous carcinoma was significantly higher than that of adenocareinoma (P <0. 05),but the expression of CD44v6 was not related to TNM stages and cell differentiation (P >0. 05). There was no correlation between the expression of survivin and C1)44v6 (r = -0. 058, P >0. 05). Conclusion Survivin might be used to evaluate NSCLC development;CD44v6 might be used for the differential diagnosis of squamous carcinoma in NSCLC;both of them might be helpful to predict the metastasis of NSCLC. They might be two independent events in the process of NSCLC genesis and develop-ment.
2.The Experience of Using Fresh Autologous Pericardium in Cardiac O peration
Zonglin SHEN ; Zhihong LIU ; Shangyi JI
Chinese Circulation Journal 2001;16(1):53-55
Objective:To introduce the experience of using the fresh autologous pericard ium in cardiac operation. Methods:Fresh autologous pericardium unprepared by 0.5% glutardaldehyde was used in cardiac operations in 321 patients.It was used not only in repair of at rial septal defect and ventricular septal defect,but also in operations of many complicated congenital heart diseases,such as tetralogy of Fallot,double outlet of right ventricle,atrioventricular canal,single atrium anomalous pulmonary veno us connection,Ebstein's anomaly,tricuspid atresia,pulmonary atresia,single vent ricle,complete transposition of the great ateries.Autologous pericardium was als o used for enlargement aortic root in rheumatic heart disease and repairing of a trial septium after resection of the left atrial myxoma. Results:Twenty patients (6.1%) died within 30 days after operation.The resi dual shunt was found in one patient with tetralogy of Fallot and three patients with ventricular septal defect.Two hundred and fourty-three patients (75.7%) w ere followed-up.No patient had hemolysis,embolism,infectious endocarditis,patch calciflcation or other complications concerned with the use of the autologous p ericardium after operation. Conclusion:The fresh autologous pericardium is a good material for repairing cardiac defects.
3.Effect of water extracts of Alpinia oxyphylla Miq. fruit on memory impairment in cerebral ischemia rats
Zhihong JI ; Xinyu YU ; Xu CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2009;18(7):580-582
Objective This report investigate the intervention effect of the water extract of Alpinia oxyphylla Miq. fruit (AOF)on memory impairment and the mechanism in cerebral ischemia rats. Methods 48 Rats were randomly divided into sham-operated group(n=12), ischemia group(n=12), AOF group Ⅰ( n= 12)and AOF group Ⅱ (n= 12). The model of transient cerebral ischemic/reperfusion was made by bilateral occlusion of common carotid arteries in rats and combination with reducing blood pressure with an abdominal injection of so-dium nitroprusside. Learning-memory ability was observed by step through test. The content of NO and the activi-ties of NOS were measured in hippocampus. Results In step through test,the latency in ischemia group[(143.8±65.2)s]significantly decreased, the number of errors (8.9±4.2 ) significantly increased compared with sham-operated group [latency: (257.2±67.1 ) s; number of errors: (1.7±1.1 ), P<0.01 ]. The latency in AOF group Ⅰ and AOF group Ⅱ[(186.5±46.2) s, (193.4±43.7 ) s ] significantly increased, the number of errors (6.1±2.9,5.2±2.1 ) significantly decreased compared with ischemia group(P<0.05, P<0.01). In hippocampus, the content of NO and the activities of NOS in ischemia group [(56.53±27.42) nmol/mg prot, (17.23±5.64) nmol/mg prot] significantly increased compared with sham-operated group[ (40.02±17.9 ) nmol/mg prot, ( 10.46±6.15)nmol/mg prot], and in AOF group Ⅰ and AOF group Ⅱ [content of NO:group Ⅰ (46.60 ±20. 26)nmol/mg prot,group Ⅱ (42.38±21.23) nmol/mg prot ;activities of NOS:group Ⅰ (13.98±5.13 ) nmol/mg pint,group Ⅱ(13.61±5.27) nmol/mg prot] significantly decreased compared with ischemia group(P<0.05). Conclu-sion AOF could significantly ameliorate the memory impairment in cerebral ischemic rats. Its effects may be in-volved in the decrease of content of NO and activities of NOS in hippocampus.
4.Estrogen receptor ERα36 gene silencing impacts the expression of growth-associated protein in PC12 cells
Zhihong JI ; Ping ZOU ; Wei ZOU
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(4):310-312
Objective To investigate the effects of ERα36 (a novel subtype of estrogen receptor alpha) on growth and proliferation in PC12 cells via examining the expression of growth-associated protein in differentiated PC12 cells after ERα36 gene silencing.Methods Transfection of ERα36-shRNA plasmid into PC12 cells was performed to establish the ERoα36 gene silencing cells model (PC12-36L1,PC12-36L2).Immunocytofluorescence was used to examine the expression of ERα36,and Western blot was used to analyze the expression of PCNA,cyclinD1 and MAPK in the PC12 cells.Results ① ERα36 was expressed in both cell types(PC12-36C1,PC12-36L1 and PC12-36L2).Compared with PC12-36C1,PC12-36L2 cells(OD value were respectively 0.95±0.05,0.78±0.10),PC12-36L1 cells significantly decreased expression of ERα36(OD value 0.47±0.12,P<0.01).② Compared with PC12 and PC12-36C1 cells,PC12-36L1 cells were significantly higher expression of PCNA,CyclinD1 and p-MAPK(P<0.01)(OD value of PCNA,CyclinD1 and p-MAPK:PC12 cells were respectively 1.00±0.05,1.00± ±0.11,1.00±0.05,PC12-36C1 cells were respectively 1.09±0.15,0.92±0.23,1.12± 0.08,PC12-36L1 cells were respectively 1.74±0.12,2.20±0.25,1.77±0.06).Conclusion ERα36 gene silencing can promote the growth and proliferation in PC12 cells.It suggests that the lower expression of ERα36 may be related to the diseases in nervous system such as brain tumor.
5.Simultaneous Determination of Four Chemical Components in Carthamus tinctorius L. by HPLC
Ting HE ; Keao LI ; Zhihong JI ; Shuge TIAN
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(4):79-82
Objective To establish an HPLC method for the simultaneous determination of hydroxysafflor yellow A, rutin, quercetin, and kaempferol in Carthamus tinctorius L..Methods The Agilent ZORBAX SB-C18 column (4.6 mm × 250 mm, 5 μm) was used with diode array detection. The mobile phase was 0.5% phosphoric acid (A) and methanol (B) to separate the four components by gradient elution at 30℃; the flow rate was 0.8 mL/min; the injection Volume was 10 μL; the detection wavelength was at 360 nm.Results The linear ranges of hydroxysafflor yellow A, rutin, quercetin, and kaempferol were 0.0776–0.7760 μg (r=0.9999), 0.0460–0.4600 μg (r=0.9996), 0.0064–0.0640 μg (r=0.9999) and 0.0128–0.1280 μg (r=0.9997), respectively. The average recoveries of four components were 99.68% with RSD=2.29% (n=6), 99.78% with RSD=1.52% (n=6), 102.03% with RSD=1.02% (n=6), 97.03% with RSD=2.05% (n=6), respectively.Conclusion The method is convenient, accurate, sensitive, stable and repeatable, which can be a method for quality control of Carthamus tinctorius L..
6.Association between chromosome 9p21 polymorphism and the large-artery atherosclerosis stroke
Ting ZHANG ; Hongwei XU ; Zhihong SHI ; Yong JI
Chinese Journal of Nervous and Mental Diseases 2016;42(2):100-103
Objective To explore the association between rs7049105, rs647188, rs1333035 of chromosome 9p21 and the LAS among Chinese Han population of Changsha;to explore the association between rs7049105, rs647188, rs1333035 and the LAS among patients with evidence of cephalic and cervical vessel atherosclerosis. Methods The present study com?prised 229 LAS patients and 233 healthy controls. The 233 controls which we defined control group 1. In the controls, 150 (64.38%)controls with evidence of atherosclerosis were defined as control group 2, 83(35.62%)controls without evidence of atherosclerosis were defined as control group 3. The sample genotyping was detected using MALDI-TOF-MS. Results There was no polymorphism of rs647188 among case group and control group 1. There was no significant difference in the polymorphism distribution of rs7049105 and rs1333035 between the case group and control group 1 and 3 (P>0.05). There may be no significant different in the polymorphism distribution of rs7049105 between the case group and control group 2 . The rs1333035 was associated with risk of LAS among patients with evidence of cephalic and cervical vessel atherosclerosis (χ2=6.502,P=0.039). Conclusions The rs10757274 and rs7049105 polymorphism in the chromosome 9p21 may not be as?sociated with risk of LAS among Han population of Changsha. There may be no polymorphism of rs647188 among Han popu?lation of Changsha. The rs1333035 polymorphism may be associated with plaque rupture and thrombosis.
7.Diagnostic experience on familial Gitelman syndrome
Wen JI ; Wei HE ; Qiqi YIN ; Luyao ZHANG ; Zhihong LIAO
Chinese Journal of Endocrinology and Metabolism 2015;31(12):1051-1054
Objective To report two cases of familial Gitelman syndrome and literature review regarding the updates of relevant genes,classification,treatment,and prognosis.Methods The clinical data of two sisters with Gitelman syndrome were retrospectively analyzed.Results Their blood pressures were within normal range.Hypokalaemic alkalosis,hypomagnesemia,and hypocalciuria were corrected almost completely after three days of intravenous magnesium and potassium infusion,spirolactone and indometacin.However,the maintenance of normal potassium was unsuccessful over one year.Conclusion Hypokalaemic alkalosis,hypomagnesemia,and hypocalciuria were normalized in Gitelman syndrome.There was some debate in regard to using PGE2 synthetase inhibitors.Tolerance of long-term medication will be the big challenge for curative effect.
8.Determination of Gallic Acid and Kaempferol-3-O-Rutinoside Contents inNymphaea Candida Presl. by HPLC
Jie LI ; Xuejia ZHANG ; Keao LI ; Zhihong JI ; Shuge TIAN
Chinese Journal of Information on Traditional Chinese Medicine 2014;(8):92-94
Objective To establish an HPLC method for the content determination of gallic acid and kaempferol-3-O-rutinoside inNymphaea candida Presl..MethodsThe separation was carried out on a Wondasil C18 column (250 mm×4.6 mm, 5μm). The mobile phase was methanol-0.1% acetic acid solution, with gradient elution;the flow rate was 1.0 mL/min;the detection wavelength was set at 270 nm;the column temperature was 30℃.Results The linear ranges of gallic acid and kaempferol-3-O-rutinoside were 0.065-0.585μg (r=0.999 1), 0.133-1.197μg (r=0.999 5), respectively. The average recoveries of gallic acid and kaempferol-3-O-rutinoside were 102.71%, 102.08%, with RSD of 1.97%, 0.46%, respectively.Conclusion This method was rapid, accurate, and reliable. It can be used for the determination of allic acid and kaempferol-3-O-rutinoside in Nymphaea candidaPresl..
9.Progress of Caveolin and Its Role in Brain
Lu WANG ; Zhihong JI ; Dongdong CHEN ; Hongxia WANG ; Wei ZOU
Progress in Biochemistry and Biophysics 2006;0(05):-
Caveolins are a family of plasmalemmal vesicles caveolae-associated integral membrane proteins and a marker protein of caveolae involved in the formation and localization that associated with vesicular transport, cellular cholesterol homeostasis and signal transduction. Recent years, strong experimental evidences indicated that caveolins play a pivotal role in the brain function such as neural development, synaptic plasticity and neurodegenerative diseases. Recent progress on studies of the structure and functions of caveolins was simply summarized. The regulatory role of caveolins in the brain functions has been reviewed and expected.
10.Allostatic load in modern stress theory
Hui MA ; Zhihong WANG ; Zhaoshen LI ; Ji YAN
Academic Journal of Second Military Medical University 1985;0(06):-
This paper introduces the conception,classification,influence on organism and indication of allostatic load in modern stress theory. [