2.Antibacterial activity and cytocompatibility of chitosan-nano-silver complex thermosensitive hydrogel
Gaoqing LI ; Qing SANG ; Kai CUI
Chinese Journal of Biochemical Pharmaceutics 2016;36(6):63-66
Objective To explore the antibacterial activity and cytocompatibility of chitosan-nano-silver complex thermosensitive hydrogel. Methods There were 4 groups: group A (containing 1 ×10-5 chitosan-nano-silver complex thermosensitive hydrogel), group B (containing 5 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group C ( containing 2 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group D ( chitosan thermosensitive hydrogel ) .The antibacterial activity of the samples against six kinds of gram-negative bacteria, one kind of gram-positive bacterium, three kinds of fungi were measured by bacteriostatic circle.The cytocompatibility of the extraction to NIH-3T3 cells was studied by SRB. Results The antibacterial activity enhanced with the increasing of nano silver concentration in chitosan-nano-silver complex thermosensitive hydrogel, whose antibacterial activity was better than chitosan thermosensitive hydrogel; its extraction has no cytotoxicity, thus showed good cytocompatibility. Conclusion The chitosan-nano-silver complex thermosensitive hydrogel is a potential novel wound dressing.
3.Study on relationship between juvenile quality of life of patients with schizophrenia
Qing SHI ; Congmei LI ; Zhonglan CUI
Chinese Journal of Primary Medicine and Pharmacy 2014;(7):989-990,991
Objective To explore the relationship between family environment and parental rearing patterns and adolescent schizophrenia , for the prevention of adolescent mental and provide scientific basis of schizophrenia . Methods In adolescent patients with schizophrenia in 101 cases( case group ) ,101 cases of the other without a histo-ry of psychosis patients as control group ,using the family environment scale ,EMBU for two groups of patients quality of life evaluation,non conditional Logistic regression analysis of related factors were analyzed .Results Intimacy, emotion expression,entertainment and father emotional warmth and understanding (F1) was a protective factor(OR=0.643,95%CI=0.235~0.863,P=0.01;OR=0.582,95%CI=0.168~0.906,P=0.01;OR=0.478,95%CI=0.174~0.834,P=0.01),but the contradiction,the father punished severely(F2),father′s refusal and denial(F5) and mother′s over interference(M2) as a risk factor(OR=1.535,95%CI=1.096~2.187,P=0.01;OR=1.516, 95%CI=1.097~2.096,P<0.01;OR=1.375,95%CI=1.034~1.989,P=0.01;OR=1.347,95%CI=1.272~1.915,P<0.01).Conclusion Good family environment and parental rearing pattern can reduce the incidence of schizophrenia .
4.Characteristics of research achievement and its transfer strategy in hospital system
Xiaomei NING ; Qing LI ; Ying CUI ; Hui LI ; Ying WANG
Chinese Journal of Medical Science Research Management 2017;30(3):203-205,208
Objective To propose new policies and strategies that will optimize the transformation of medical research achievements at hospital level.Methods In this paper,we systematically analyzed the characteristics and influencing factors of the transformation of medical research achievements based on the status quo in our hospital.Results In our hospital as an example,major problems in the transformation of medical research achievements identified as low investment,low conversion rate,complex procedures,multi-links existed and more multi disciplinary cooperation needed.Conclusions The hospital can take some measurements to optimize the transformation of medical research achievements,such as more stream lined management of scientific research project,establishing and improve the platform for scientific research transfer,increasing the funding,strengthening cooperation among different disciplinaries,building a professional team to promote the transfer and so on.
5.Papillon-Lefevre syndrome.
Sheng LI ; Cui QING ; Chang-Ai ZENG
Chinese Journal of Stomatology 2008;43(6):382-383
6.Study on Inhibitory Effect of Aqueous Extract of Taxus Chinensis var. mairei Combined Erlotnib on A549 Xenograft in Nude Mice and Its Mechanism.
Qing-li CUI ; Ping YE ; Qi-jin SHU ; Mei SHAO
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(5):572-577
OBJECTIVETo study the effect of aqueous extract of Taxus chinensis var. mairei (AETC) combined Erlotnib on the growth of A549 xenograft in nude mice and its mechanism.
METHODSThe xenograft model in nude mice was established by inoculating A549 cells subcutaneously. BALB/c nude mice bearing A549 xenograft were randomly divided into six groups, i.e., the low dose Erlotinib group (A) , the standard dose Erlotnib group (B) , the low dose Erlotinib combined AETC group (C), the standard dose Erlotnib combined AETC group (D), the AETC group (E), the control group (F), 12 in each group. Different medication was performed for 7 successive weeks after 24 h. One mL blood was withdrawn and tumor tissues taken. The tumor inhibition rate was calculated. The combined effect was analyzed by Jin's Formula [Q = Ea + b/(Ea + Eb-Ea x Eb) ]. mRNA and protein expression levels of epidermal growth factor receptor (EGFR), cyclooxygenase-2 (COX-2), and B cell lymphoma-2 (Bcl-2) in xenografts were detected using real-time RT-PCR and ELISA.
RESULTSCompared with Group F, the xenograft weight was obviously lowered in Group B-E (P < 0.05, P < 0.01). The q value was 0.92 in Group C and 0.96 in Group D, which was obtained by simple adding of the two drugs. Compared with Group F, EG- FR mRNA expression in Group D and E, COX-2 mRNA expression in Group A-E; Bcl-2 mRNA expression in Group B-D; COX-2 protein expression in Group B-E; Bcl-2 protein expression in Group C and D were obviously lowered with statistical difference (P < 0.05, P < 0.01).
CONCLUSIONSAETC combined low dose and standard dose Erlotinib had synergistic effect on tumor inhibition. Its mechanism might be associated with down-regulating mRNA and protein expression levels of COX-2 and Bcl-2.
Animals ; Antineoplastic Agents ; pharmacology ; Antineoplastic Combined Chemotherapy Protocols ; pharmacology ; Cell Line, Tumor ; Cyclooxygenase 2 ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Enzyme Inhibitors ; pharmacology ; Erlotinib Hydrochloride ; pharmacology ; Heterografts ; Lung Neoplasms ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Receptor, Epidermal Growth Factor ; metabolism ; Taxus ; Transplantation, Heterologous
8.Value of serum NT-proBNP in the clinical evaluation of heart failure
Qing WANG ; Feng LENG ; Zhi LI ; Yiwen CUI
Chinese Journal of Postgraduates of Medicine 2006;0(03):-
Objective To investigate the relationships between the concentration of serum NT-proBNP,New York Heart Association(NYHA) classification,left ventricular ejection fraction((LVEF),)and the value of serum NT-proBNP in the evaluation of cardiac function and the diagnosis of chronic heart failure.Methods One hundred and two subjects were selected,including 30 healthy controls and 72 patients with heart failure.The concentration of serum NT-proBNP was determined by an automated electrochemiluminescence immunoassayan Roche Elecsys 2010.LVEF was measured by the modified Simpson′s equation with echocardiography.The diagnosis of clinical physician was considered to be the golden standard for heart failure.Results The relationships between the concentration of serum NT-proBNP and NYHA,serum NT-proBNP levels(287.7 pg/ml) was significantly higher in heart failure patients(287.7 pg/ml) than that in healthy controls 287.7 pg/ml vs (46.1 pg/ml),P
9.Clinical Application of 16-slice Spiral CT in the Diagnosis of Vascular Diseases
Zihua QI ; Fengyu CUI ; Qing WANG ; Chuanfu LI ; Xiangxing MA
Journal of Practical Radiology 1996;0(04):-
Objective To evaluate the value of 16-slice spiral computed tomography angiography(16SCTA) and reconstruction technique in the diagnosis of vascular diseases. Methods Using 0.75 mm collimation,1mm slice thickness and 0.5mm repitition,16SCTA was performed in 100 patients with suspected vascular diseases.Reconstruction methods were multiple planar reconstruction(MPR),maximum intensity projection(MIP) and volume rendering technique(VRT). Results 65 patients were proved by pathology or DSA in 100 vascular diseases,which included cerebral aneurysm(n=8),brain arteriovenous malformation(AVM,n=2),pulmonary AVM(n=6),pulmonary artery embolism with thrombus of the lower limb vein(n=9),pulmonary sequestration(n=4),coronary artery soft plaque and / or calcification(n=20),aortic aneurysm(n=12),renal artery stenosis(n=3),superior mesenteric artery thrombus(n=2),femoral artery stenosis(n=1),soft tissue hemangioma(n=33).Three reconstruction techniques showed the size,shape and extent of the lesion and displayed the lesion in any directions.VRT could display three-dimensionally the lesion.MPR and MIP could show the thrombus of lesion,MIP and VRT could display the calcification of lesion. Conclusion Application of every 16 SCTA reconstruction technique can display clearly lesion and replace DSA in diagnosis of vascular diseases,and provides another reliable diagnostic method for patients and has clinical importance for treatment.
10.Correlation between extratemporal hypometabolism and the outcome of temporal lobectomy in patients with temporal lobe epilepsy
Haomiao QING ; Ruixue CUI ; Wanchen DOU ; Fang LI
Chinese Journal of Nuclear Medicine and Molecular Imaging 2015;35(1):18-21
Objective To explore the correlation between extratemporal hypometabolism on preoperative 18F-FDG PET imaging and the outcome after temporal lobectomy in temporal lobe epilepsy (TLE)patients.Methods A total of 96 patients with intractable TLE who underwent temporal lobectomy were recruited.The outcome was evaluated according to International League Against Epilepsy (ILAE) 2001 outcome classification (OC) criteria:OC 1-3 was considered as good outcome and OC4-6 as poor outcome.The follow-up period was more than 2 years.The 18F-FDG PET brain images were retrospectively analyzed.The preoperative extratemporal cortical hypometabolism and extratemporal subcortical hypometabolism occurred in basal ganglia and thalamus were taken as independent exposure factors of poor outcome and the odds ratios (OR) were calculated respectively.Results Thirteen of 96 cases had poor outcome.Extratemporal cortical hypometabolism was found in 12 of 83(14.5%) cases with good outcome and in 11 of 13 cases with poor outcome.Extratemporal subcortical hypometabolism was found in 25 of 83 (30.1%) cases with good outcome and in 10 of 13 cases with poor outcome.The occurrence of extratemporal hypometabolism was significantly higher in poor outcome group than that in good surgical outcome group (cortical:x2 =26.63 ;subcortical:x2 =8.70; both P<0.05).The OR of extratemporal cortical hypometabolism was 32.54,with 95% CI of 6.40-165.44,and that of extratemporal subcortical hypometabolism was 7.73,with 95% CI of 1.96-30.52.Conclusion Extratemporal cortical hypometabolism and subcortical hypometabolism in TLE patients are associated with poor outcome of temporal lobectomy in TLE patients.