1.Glycolysis abnormality in neoplasm cells and the targeted therapy
Yuyang PANG ; Ting WANG ; Fangyuan CHEN
Journal of International Oncology 2012;39(10):726-728
Cancer cells display a decreased mitochondrial respiration along with an abnormal activation of glycolysis to satisfy the demand of the malignant growth even in the presence of oxygen.This phenomenon may be caused by mitochondrial dysfunction,hypoxia of microenvironment and the abnormal activation of upstream regulators of glycolysis pathway.Treatment targeted at the glycolysis pathway and its upstream regulators may provide a new therapeutic strategy of cancer.
2.Association of chronic kidney disease with clinical outcomes after revascularization for patients with multiple coronary artery disease
Zhijian WANG ; Yujie ZHOU ; Yuyang LIU
Chinese Journal of Interventional Cardiology 2003;0(06):-
Objective To compare the clinical outcomes of CABG and PCI with drug-eluting stent(DES)in patients with multivessel coronary artery disease and CKD.Methods Between January 2004 and June 2006,1,069 patients with multivessel coronary disease and CKD undergoing PCI with drug-eluting stent(DES)(n=724)or CABG(n=345)were evaluated.CKD was defined as estimated glomerular filtration rate(eGFR)
3.Effects of different intensities of swimming training on the expressions of protein kinase A after cerebral ischemia-reperfusion in rats
Yuyang WANG ; Peipei WANG ; Zhenyan ZHANG ; Qiang WANG
Chinese Journal of Physical Medicine and Rehabilitation 2013;35(7):513-518
Objective To observe the effects of intensive-swimming training at different intensities on the neurological function and the expressions of protein kinase A after cerebral ischemia-reperfusion in rats,and to explore the possible neuroprotection mechanism of intensive-swimming training after cerebral ischemia-reperfusion in rats.Methods The animal model of cerebral ischemia-reperfusion was established in rats by using the intraluminal thread method to cause left middle cerebral artery occlusion (MCAO) for 2 h and then reperfusion.A total of 120 male model Sprague-Dawley rats were randomly divided into training group 1 (swimming for 5 min once a day),training group 2 (swimming for 10 min once a day),training group 3 (swimming for 20 min once a day) and control group (no training),with 30 rats in each group.Another 30 rats who were assigned to the sham-operation group were subject to no MCAO and no training.At the 3rd,7th and 14th day post operation,10 rats randomly selected from each group were examined for their neurological function by Menzies neurobehavioral test and forelimb placing test.Expressions of protein kinase A were detected by immunohistochemistry method.Expressions of PKA-mRNA were detected by using RT-PCR.Results The neurological function in sham-operation group was normal.The differences between sham-operation group and control group with regard to Menzies test and forelimb placing test scores were statistically significant at all the time points (P < 0.05).The improvement of neurological function in all training groups,were significantly better than those in controls at the 3rd,7th and 14th d after swimming training,especially in training group 3 on the 14th day post-operation (P <0.05).At3rd,7th,and 14th days post-operation,the Menziesscores were(1.40±0.55),(1.00 ±0.71)and (0.80 ±0.45),respectively,and the forelimb placing scores were(5.20 ± 0.84),(3.80 ± 1.30) and (2.40 ± 1.14),respectively,in the training group 3.The number of positive cells and the expressions of protein kinase A mRNA were significantly higher in all training groups than those in the controls at the 3rd,7th and 14th days after swimming training,and the increase of positive cells and mRNA of PKA in the training group 3 was significantly more obvious at 14th day compared with other training groups(P < 0.05).Conclusions Exercise training can increase the expression of positive cells and mRNA of PKA in rats after cerebral ischemiareperfusion,hence,it improved the injured neurological function and promote the recover of sensory and motor function,and the more intensive the training,the better the effects.
4.The Effects of intensive treadmill training on neurological function and expression of kalirin-7 after cerebral ischemia-reperfusion in rats
Jingjing GAO ; Yuyang WANG ; Hao SHI ; Qiang WANG
Chinese Journal of Physical Medicine and Rehabilitation 2015;37(6):406-410
Objective To investigate the effects of treadmill training at different intensities on neurological function and expression of kalirin-7 in rats after cerebral ischemia-reperfusion,and the possible mechanism.Methods Sixty Wistar male rats were randomized into a model group,a routine training group,an intensive training group and a sham-operation group (n =15 for each group).A middle cerebral artery occlusion/reperfusion (MCAO/R) model was established in all the rats of the first three groups.The model group and sham group did no motor training,while the utine training group did treadmill training once daily,and the intensive training group did treadmill training twice a day.On the 3rd,7th and 14th day,Zausinger scores was used to evaluate the neurological deficit;reverse Transcription PCR (RT-PCR) and Western blot were adopted to detect the expression of kalirin-7 and kalirin-7 mRNA in the peri-ischemic brain tissues respectively.Results The average Zausinger scores of the model group and 2 training groups were significantly lower than that of the sham-operation group at all time points;on the 7th and 14th days,the average score of the intensive training group was significantly higher than that of the outine training group.Moreover,the expression of kalirin-7 and kalirin-7 mRNA in the MCAO rats were significantly lower than that in the sham-operation group.On days 7 and 14,the expression of kalirin-7 in the intensive training group was significantly higher than that of the routine training group,which was still significantly higher than the model group.On day 14,the expression of kalirin-7 mRNA in the intensive training group was significantly higher than that of the routine training group,which was still significantly higher than the model group.Conclusion The intensive training is superior to routine training in promoting neural functional recovery and expression of kalirin-7 in rats with cerebral ischemia-reperfusion.
5.Effect and mechanism of Gujingdan on acute renal injury induced by gentamicin
Xiulan CHEN ; Li GUO ; Yuyang ZHANG ; Minwei WANG
Chinese Traditional Patent Medicine 1992;0(06):-
AIM:To study the protective effect and mechanism of Gujingdan(Radix Astragali,Fructus Alpiniae oxyphyllae,Radix et Rhizoma Salviae miltiorrhizae,Herba Epimedii,Semen Euryales,etc.) on the acute renal injury caused by Gentamicin in rats.METHODS:90 rats were randomly divided into normal control group,pathologic model group,preventive group which included high,middle and low dosages of Gujingdan(4 g/kg,2 g/kg,1 g/kg) and positive control group which was treated with Shenkangning(2 g/kg) and treated group which included the same groups as the preventive group.The preventive groups were respectively given Gujingdan and Shenkangning for two weeks and ahead one week.On the seventh day,except the normal group the others were continuously injected gentamicin by abdominal cavity(100 mg/kg/day) seven days.At the same time,the treated group were given Gujingdan and Shenkangning by ig for seven days.When the experiment was over,the content of ?-N-acetyglocosamidase(NAG),serum creatinine(SCR) and blood urea nitrogen(BUN) were examined,and the renal histological changes were observed.RESULTS:NAG,BUN,SCR of the groups which were treated with Gujingdan were remarkly lower than that of the pathologic model group;SOD、ATP were higher and MDA was lower than that of the model group.Histological changes showed that renal tubular epithelial cells of the groups treated with Gujingdan were similar to the changes of normal group and much better than that of positive group and pathologic model group.CONCLUSION:Gujingdan has the protective effect on acute renal injury caused by Gentamicin.The mechanism may be that Gujingdan has the function of inhibiting oxidation,protecting and stabilizing cell membrane.
6.Modulating drug loading and release profile of beta-cyclodextrin polymers by means of cross-linked degree.
Qifang WANG ; Sanming LI ; Yuyang ZHANG ; Hong ZHANG
Acta Pharmaceutica Sinica 2011;46(2):221-6
The purpose of the present study is to use beta-cyclodextrin polymers (beta-CDP) with different cross-linked degree (CLD) to form inclusion complexes with ibuprofen and examine the effects of structural and compositional factors of beta-CDP on its drug loading and release behaviors. A series of beta-CDP with different CLD were synthesized and characterized by Fourier Transform Infrared Spectroscopy (FT-IR) and 13C NMR spectrum. The beta-CDP was systemically characterized for the relation between the CLD of beta-CDP and the drug loading and release as well. The results of FT-IR and 13C NMR showed that similar peak-shaped vibration of beta-CDP and beta-CD implies that the polymer keeps the original characteristic structure of beta-CD. The CLD of the beta-CDP played a critical role in the drug loading and release, increasing the CLD resulted in reduction of drug loading, but increase in drug release.
7.The mechanism innovation and practical exploration about training post-graduate research capacity
Shucui WANG ; Qing GUO ; Le LIU ; Li SUN ; Yuyang LI
Chinese Journal of Medical Education Research 2003;0(04):-
The research capacity in post-graduate education process is an important content,also an important indicator of educational outcomes.School of Medicine and Health Management of Hangzhou Normal University has done a bold exploration at this area,making the integration and innovation,from the management system to the practical operation,from the school management to the society support.Considering the compound characteristics of Social Medicine and Health Service Management specialty,the school has designed the "ladder" training research capacity programs by playing the school system,teacher roles and social support,and many other forces,in order to ensure and enhance the research capability of post-graduates.
8.The effects of nano-chitosan/bone morphogenetic protein gel on the repair of mandibular defect
Yuyang CHEN ; Fuqiang XIE ; Yun ZHANG ; Xin WANG ; Jian SUN
Journal of Practical Stomatology 2014;(5):624-628
Objective:To investigate the effects of Nano-chitosan rhBMP-2 Gel(NCS/BMP-2 Gel)on the repair of mandibular de-fect.Methods:NCS/BMP-2 Gel and NCS Gel were prepared and respectively injected into the subcutaneous space on both sides of dorsum of 9 rats.3 rats were respectively sacrificed 10,20 and 30 d after injection.The subcutaneous nodules were histologicaly ex-amined.Mandibular defect was made in 54 SD rats and the rats were divided randomly and into 3 groups(n=18):NCS/BMP-2 Gel was implanted into the defects in group 1,NCS Gel in group 2,no injection in group 3.Animals were sacrificed 3,6 and 9 weeks after transplantation.X-ray examination,pathologic observation were conducted.Results:Subcutaneous nodules were found in both sides of the rat dorsum.The residual mandibular defect area in study group 1 was apparently smaller than that in group 2 and 3(P<0.05). More new bone formation was observed in the gel injected area in group 1 than in group 2 and 3.Conclusion:Nano-CS/BMP-2 Gel is biocompatible and can accelerate the healing of mandibular defect.
9.Application progress of graphene oxide and aptamer in detection
Yanfeng LIN ; Yuyang LIU ; Shunxiang GAO ; Lianghua WANG ; Bo HU
Chinese Journal of Biochemical Pharmaceutics 2015;(8):186-188
Aptamers are oligonucleotides which can combine targets with high affinity and specificity.Graphene oxide is a kind of new material with many unique physical and chemical properties.Recently, graphene oxide is gradually applied to the field of aptamers and has made a series of progress.This review focused on the application progress of graphene oxide and aptamers in the detection of different targets including small molecules and metal ion, biomacromolecules and cells in order to provide references for the mass application of graphene oxide and aptamers in the field of detection .
10.Research report on intramural gallstones
Tie QIAO ; Ruihong MA ; Yuyang FENG ; Xingqiang WANG ; Xiaofeng WANG ; Hongying CAI ; Xiaobing LUO
Chinese Journal of Hepatobiliary Surgery 2011;17(9):741-744
ObjectiveTo investigate the relationship between intramural gallstones and intraluminal gallstones. MethodsIn this present study, the control study was applied to analysis on the gallstones from 116 cholecystolithiasis patients with intramural gallstones as well as intraluminal gallstones. All the patients were from the general surgery department and accepted gallbladder-preserving cholecystolithotomy during 2009.02-2009.08. Meanwhile, 171 patients with intraluminal gallstones were investigated the clinical traits; and gallstones from them were analyzed with FT-IR and microsopic examination. ResultsThe results showed the coincidence rate of stone type was 97.4%, and it was mainly pigment gallstones and mixed gallstones in 116 cases; the coincident detection rate of clonorchis sinensis eggs was 98.3 %, and it was much higher in the pigment gallstones and mixed gallstones than that in the cholesterol gallstones. The ratio of pigment gallstones from the 116 patients group was higher than the 171 patients group, and the detection rate of C. sinensis eggs of the two groups had no statistical difference (P>0.05). ConclusionsThe stone type of intramural gallstones was mainly pigment gallstones and mixed gallstones. Intramural gallstones and intraluminal gallstones were homologous.