1.Research of oxaliplatin inhibit growth in glioma U87 cells by regulating PI3K/Akt signal pathway
Youqiang DUAN ; Yifeng LIU ; Wei LI
Chinese Journal of Immunology 2017;33(3):328-332
Objective:To investigate the effect of oxaliplatin inhibit the growth in glioma U 87 cells by regulating PI3K/Akt sig-nal pathway.Methods:The glioma U87 cells were cultivated in vitro ,using 0,20,40,80 μg/ml oxaliplatin treated U87 cells 24,36, 48,72 h respectively,MTT was used to detect cell proliferation.Using 40 μg/ml oxaliplatin treated U87 cells 48 h,flow cytometry was used to detect cell cycle and apoptosis .Cells apoptosis protein and PI 3K/Akt pathway protein expression after 40 μg/ml oxaliplatin treated U87 cells 48 h was detected by Western blot .Results:MTT assay showed that compared with the 0μg/ml treatment ,oxaliplatin treatment could significantly inhibited U 87 cell survival ( P<0.01 ) ,40μg/ml oxaliplatin treatment 48 h ,the survival inhibitory was the most obvious.U87 cell cycle was arrested in S phase after 40 μg/ml oxaliplatin treatment 48 h.After 40μg/ml oxaliplatin treatment 48 h,compared with the 0 μg/ml treatment,U87 cell apoptosis rate significantly increased (P<0.01).Western blot showed that after 40μg/ml oxaliplatin treatment , anti-apoptotic factor Bcl-2 expression had significant decreased , pro-apoptotic factors Bax , Cleaved-caspase3 protein expression had significantly increased (P<0.01).PI3K,p-Akt expression was significantly decreased (P<0.01),and Akt expression had no significant change in Akt pathway (P>0.05).Conclusion:Oxaliplatin may suppress U87 cell proliferation,ar-rest cell cycle,and promote apoptosis by inhibit PI3K/Akt signaling pathway.
2.Stability of Dexamethasone Sodium Phosphate Eye Drops
Yifeng FAN ; Pengcheng ZANG ; Weiwei WEI
China Pharmacy 2005;0(19):-
OBJECTIVE: To study the stability of dexamethasone sodium phosphate(DSP) eye drops and predict its validity duration.METHODS: The content of DSP in eye drops was determined by HPLC and its validity duration was predi-cated using initial average rate method.RESULTS: The linear concentration range of DSP was 18~70 ?g?mL-1(r=0.999 9) with an average recovery rate of 99.74%(RSD=0.37%).The content of DSP in the eye drops decreased as its storing temperature increased and the storing time prolonged,but its pH was stable. The validity duration of the eye drops was computed to be 70 days at 25 ℃ and 438 days at 4 ℃.CONCLUSION: This eye drops were stable at 4 ℃.
3.Diagnosis of right ventricular outflow tract and intraoperative lesion in patients with right coronary artery sinus rupture by transthoracic echocardiography
Xiongfei LIANG ; Yifeng YANG ; Wei LIN
Journal of Central South University(Medical Sciences) 2017;42(7):796-801
Objective:To investigate the role of thoracic echocardiography in diagnosis and differential diagnosis of the right ventricular outflow tract into the right aorta with right ventricular aneurysm rupture.Methods:A total of 19 patients with sinus rupture caused by ventricular septal defect in the right ventricular outflow road were reviewed.These patients were diagnosed as aortic right coronary sinus by preoperative transthoracic echocardiography from February 2010 to September 2016 in Xiangya Second Hospital and Xiangya Medical College Affiliated Haikou Hospital.The clinical symptoms,echocardiography and intraoperative lesions were compared and analyzed among the patients.Results:The intraoperative lesions were consistent with the preoperative echocardiographic diagnosis in 16 patients.Among them,11 cases could be heard the continuous sound of the machine with systolic murmur and no tremor in left sternal rib 2-3 auscultation.The color Doppler imaging of right ventricular systolic indicated the based continuous Doppler spectrum.The preoperative echocardiography and intraoperative lesions testified the ventricular septal defect size and the right ventricular outflow tract into the right aorta with right ventricular aneurysm rupture.Among them,3 cases were complicated with other heart diseases.Other 3 cases were not accorded with the preoperative diagnosis.There were auscultation smell and noise but no tremor.The preoperative echocardiography and lesions indicated the right ruptured aneurysm of the sinus of big and long mouth,1 case with aortic valve stenosis and regurgitation,congenital aortic valve two valve malformation,1 case with aortic valve-severe reflux,1 case with pulmonary infection,and 3 cases with no intraoperative lesions in the ventricular septal defect.Conclusion:Preoperative transthoracic echocardiography is the preferred preoperative,quick and noninvasive method for ruptured aneurysm.Each stage of observation procedure and method can observe the ruptured aneurysm of aortic sinus,the location,size and adjacent ofventricular septal defect.Meanwhile,the flow spectrum characteristics of the ventricular septal defect in the right outflow tract of the right sinus aneurysm can be found by Doppler ultrasound imaging.
4.Construction of legitimate interest safeguard mechanism for mental health workers
Yong DENG ; Wei LIU ; Yifeng LIU ; Zenghui HUO
Chinese Mental Health Journal 2015;(9):641-644
The legitimate rights of mental health workers don't get expected protection,which has caused negative influence on the development of mental health work.By introducing the Gantt v.Arnie Sethcase,we an-alyzed the law applicable disputes of doctors who are hurt by the patients with mental disorders,and made legal e-valuation on the views of relevant responsibility identification at home and abroad,and attempted to come up with some suggestions on construction of legitimate interest safeguard mechanism for mental-health workers from the as-pects of legislation and administrative policy.
5.Construction and application of cloud-based hospital information system
Wei ZHANG ; Xiong HAN ; Yifeng XUE ; Yijun CHEN
Chinese Medical Equipment Journal 2017;38(3):116-119
Objective To explore the construction and application of cloud-based healthcare information system (CHIS).Methods The process of CHIS employment and implementation for primary-level medical and healthcare institutions was elaborated by the example of a city after the analysis and comparison of mode difference between traditional and cloud construction.Results CHIS integrated regional medical resources and realized integrated application of medical and public healthcare resources,mobile integration of regional operation and continuous innovation in construction mode,and facilitated uniformed management,high-efficiency running and maintenance as well as business development.Conclusion CHIS contributes to enhancing medical inforrnatization in primary institutions,promoting continuous medical innovation and innovating medical informatization mode.
6.Analysis of clinical features and risk factors for adult nephrotic syndrome with pulmonary thromboembolism
Wei FENG ; Yifeng WANG ; Rongwei TANG ; Yunhua LIAO
Tianjin Medical Journal 2016;44(3):353-355,356
Objective To investigate the clinical features and risk factors of adult nephrotic syndrome with pulmonary thromboembolism (PTE). Methods Sixty patients diagnosed with nephrotic syndrome and clinically suspected with PTE were enrolled in this retrospective study. Patients were divided into PTE group (n=32) and no-PTE group (n=28) according to the results of computed tomographic pulmonary angiography (CTPA). The single factor analysis and Logistic repres?sion analysis were used to analyse risk factors including age, gender, onset time, clinical symptoms, laboratory examination and pathological types. According to the independent risk factors, the receiver-operating characteristic curve (ROC curve) was used to determine PTE threshold value based on the evaluation index in nephrotic syndrome. Results Single factor analysis showed that there were significant differences in disease duration, hemoglobin, serum albumin, total cholesterol, low-density lipoprotein cholesterol, D-dimer and physical examination in P2 hyperthyroidism between two groups (P <0.05). Logistic regression analysis showed that D-dimer was independent risk factor of PTE. The analysis of ROC curve indi?cated that D-dimer optimal threshold was 1 015.50μg/L. Conclusion D-dimer is an independent risk factor of PTE in pa?tients with nephrotic syndrome. When D-dimer is greater than 1 015.50μg/L, should pay attention to the occurrence of PTE.
7.Construction and tobacco transformation of COR and BBE genes hairpin RNA vector of Papaver somniferum.
Yanmei LU ; Jinwen ZHANG ; Yujie WEI ; Guimin WEI ; Yanhong ZHANG ; Yifeng GAO
Acta Pharmaceutica Sinica 2013;48(7):1169-77
The gene expressions of codeinone reductase (COR) and berberine bridge enzyme (BBE) in Papaver somniferum were blocked by RNA hairpin of RNA interference (RNAi). The complete sequences of COR and BBE genes were cloned by reverse transcription-polymerase chain reaction (RT-PCR), the results of homology comparison revealed that the cloned COR and BBE genes had high homology with the other gene family members reported in the GenBank. The target sequences of COR and BBE genes were screened in accordance with the design principle of RNAi, a 643 bp fusion gene was obtained by the method of overlapping PCR, then plant expression vector ihpRNA was constructed based on intermediate vector pHANNIBAL and plant expression vector pCEPSPS. With that 78 transgenic plants were obtained through Agrobacterium-mediated and 17 positive plants were screened by PCR, that could initially indicate that the target fragments of COR and BBE gene had been integrated into tobacco genome.
8.Analysis of HFRS vaccination against hemorrhagic fever with renal syndrome during 1999-2000 in Laiwu City.
Kaixiao WEI ; Yifeng XIE ; Zhanfeng YAO
Chinese Journal of Experimental and Clinical Virology 2002;16(3):283-285
OBJECTIVETo evaluate the effect the vaccine of hemorrhagic fever with renal syndrome (HFRS).
METHODSData of totally, 1095 individuals who were immunized with HFRS vaccine type produced by Shenyang Baiao Biotechnology, Ltd were analyzed. 1999-2000 in Laiwu City.
RESULTSMost of the individuals belonged to rural population. In most cases the vaccination was done in spring and autumn. Persons between ages 18-40 years dominated the series. The side effects of the vaccination were seen in 1.71% in which local reaction was 1.35%, general reaction 0.30%, abnormal reaction 0.06% and the lowest reaction rate was seen in the group between ages 7-17.
CONCLUSIONSThe vaccine was quite effective. Both antibody positive ratio and GMT level of antibody were high.
Adolescent ; Adult ; Aged ; Child ; Female ; Hantaan virus ; immunology ; Hemorrhagic Fever with Renal Syndrome ; prevention & control ; Humans ; Male ; Middle Aged ; Vaccination ; Vaccines, Inactivated ; Viral Vaccines
9.Relationship between bedtime blood glucose level and nocturnal hypoglycemia observed with continuous glucose monitoring system in type 2 diabetic patients
Guofu WU ; Yifeng MAI ; Wei WO ; Chunyan YU ; Yinhuan WU ; Jiangping JIAO
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
Blood glucose levels of 220 days were recorded in 85 type 2 diabetic patients for monitoring glycemia for 48-72 h each one by the continuous glucose monitoring system (CGMS). Frequencies of nocturnal hypoglycemia (blood glucose≤2. 8mmol/L) were estimated when bedtime blood glucose levels were≤4.4mmol/ L,≤5.0mmol/L,≤5. 6mmol/L,≤6.1mmol/L,≤6. 7mmol/L, or≤7. 2mmol/L respectively. Nocturnal hypoglycemia occurred in 39 nights of 220 days (17.7%) of 26 patients and their bedtime blood glucose level was (4.4?2.6)mmol/L with a range from 2. 2 to 12. 6 mmol/L. Using a cut-off of bedtime blood glucose at≤6. 7 mmol/L, area under the ROC curve was reached maximal value (0. 359?0. 046). The positive predictive value was 25% and the negative predictive value was 91. 7%. CCMS is a useful tool to detect unaware nocturnal hypoglycemia.
10.Community-based hypertension management for elderly patients
Li YANG ; Xiaoling XU ; Jing YAN ; Wei YU ; Yifeng ZHANG ; Jianyong LUO ; Qingmin LIU
Chinese Journal of General Practitioners 2014;13(11):923-925
Using the method of stratified random cluster sampling,8 996 elderly hypertensive patients in community were selected in the study.Patients entered the community-based hypertension program receiving stratified management,individualized treatment and health education.After 3 years of intervention,the disease awareness rate,treatment compliance rate and hypertensive control rate were increased from 68.30%,55.40% and 38.60% to 98.90%,86.70% and 77.80%,respectively (P <0.05).The systolic and diastolic pressure,body mass index,triglyceride levels and other hypertensionrelated indicators were improved significantly,the number of individuals with obesity/overweight,smoking and drinking were decreased and those with regular exercise increased (all P < 0.05).The results indicate that community-based comprehensive hypertension management is effective for hypertension control for elderly patients in community.