Technology and technique of coronary artery stent have been developed to a certain degree, restenosis rate of metal stent reduces to 15%, but coronary artery stent is still difficult for long-term effect of interventional therapy on coronary atherosclerotic heart disease. Drug-eluting stent is newly discovered during recent years, while it is prospect for preventing restenosis postoperatively. Although clinical efficacy of drug-eluting stent is encouraged, indication is still simple. In addition, some events related to drug-eluting stent remain poorly unknown. This study was designed to compare security between drug-eluting stent and metal bared stent, analyze major factors correlated with security of drug-eluting stent, and investigate the development of drug-eluting stent.

Calcaneus ; injuries ; surgery ; Fracture Fixation, Internal ; Fractures, Bone ; surgery ; Humans

Objective In the heart,autophagy is important for the turnover of organelles at low basal levels under normal conditions,but is upregulated in response to stresses such as ischemia/reperfusion and in cardiovascular diseases such as heart failure. It can prevent the heart from injury under stress conditions. This study was designed to test the hypothesis that autophagy would be upregulated in the myocardium of children with cyanotic congenital cardiac defects. Methods Eighteen children with cyanotic (n=10) or acyanotic cardiac defects (n=8) who were admitted in our hospital from October 2008 to April 2009 and received surgical treatment were investigated. Samples from the right ventricular myocardium taken immediately after aortic clamping were morphologically studied with transmission electron microscopy for the ultrastructure. Microtubule-associated protein 1 light chain 3 (LC-3) was detected by Western blot analysis in the obtained samples. Results Children with cyanotic cardiac defects had higher oxyhemoglobin saturation before operation than those with acyanotic cardiac defects. Electron microscopy showed that the former group had more mitochondria,disordered arrangement,swollen endoplasmic reticulum and typical autophagosomes in the myocardial cytosol. LC3-II were significantly elevated in patients with cyanotic compared with those with acyanotic congenital cardiac defects (P

Objective By using ProtEx~(TM) technology to decorate target cells with an exogenous protein and observe its function for immunomodulation.Methods Donor splenocytes were decorated with chimeric SA-FasL protein.The expression of FasL and its impact on other molecules on the surface of splenocytes was detected.Heterotopic rat heart transplantation was performed from inbred WF rat to ACI rat.According to the different donor splenocytes perioperatively injected into recipients,the recipients were divided into 3 groups:SA-FasL group (n=23),SA group (n=20) and control group(n=10).Heart beating was examined by palpation on daily basis,the cessation was regarded as reiection,while surival over 100 days was considered as graft long-term survival.Diabetes models in C57BL/6 mice were induced by intravenous injection of STZ.Islets from BALB/C mice were decorated by SA-FasL protein,islets transplant was performed from BABL/c to C57BL/6 mice.Based on the different treatments of donor islets,recipients were divided into three groups:islet-FasL group (n=21),islet-SA group (n=21) and islet-untreated group(n=14).Rejection was identified while urine glucose was positive and blood glucose value was over 250 mg/ml for consecutive two days.Urine glucose negative over 100 days was regarded as graft long-term survival.Results The mean exDression rate of FasL in splenocytes was 94.49%±4.27% tested by flow cytometry and FasL showed red color 0n the surface of splenocytes by fluorescent stammg.FasL deeoration did not disturb the expression of CD3,CD4,D8,MHC I and CD80.The long-term survival rate o,f heart transplant showed significant difference between tWO groups(SA-FasL:70% vs SA:25%,P<0.05).67% FasL-decorated islets had normal function 30 days post transplant,and 29%FasL-decorated islets achieved long-term survival,which was significantly differed from the other groups(P<0.05).Conclusion ProtEx~(TM) is a simple,fast,safe and efficient approach for exogenous protein modmcation.Decoration of target cells with Chimeric FasL by this technique plays an umportant role in immunomodulatiorn.

In order to evaluate the anti-influenza virus activity of the effective monomer from Folium Isatidis (FI) in vivo, we established mice model with viral pneumonia and divided them into 3 different dose groups, then observed their lung indexes, pulmonary pathological changes, pulmonary virus hemagglitination titers, living time and death rates. The results showed that the monomer could reduce the pulmonary index from 2.64 to 1.93, 1.63 and 1.40 (P<0.01) and decrease the hemagglitination titer from 1.15 to 0.84, 0.70 and 0.59 (P<0.01). In addition,the living time from 5.1d to 6.5d, 8.4d and 8.9d respectively(P<0.01). The high dose (75 mg/kg/d) has the similar effect with 100 mg/kg/d dose of virazole(P>0.05), and more effective than 200 mg/kg/d dose of antiviral liquor (P<0.05).

Anaerobic ammonium oxidation(ANAMMOX)is a new process of nitrogen conversion that has prospect most currently.The AN- AMMOX process offers great opportunities to remove ammonia from wastewater without the addition of an external carbon source and with con- siderable less aeration costs in comparison with classical methods.ANAMMOX is a biologically mediated process.Three bacteria are identi- fied responsible for the process as new deep-branching planctomycete:Brocadia,Kuenenia and Scalindua.Described it to separate and the method,biochemistry path,the ecosystem physiology characteristic for authenticate and distribute.

Objective To explore the psychomotor development in 12 month old infants born after in vitro fertilization with a control group of infants concieved naturally.Methods A matched control study was performed on psychomotor development of 12-month-old infants concieved with use of assisted reproductive technology(in vitro fertilization only).The control group was matched according to maternal age,parity,social class and level of parental education.The suitable mothers were invited to participate at the 28th week of gestation and were followed up to delivery.The infants of the two groups were followed up to 12 months old and a formal developmental assessment was done with the Children Development Center of China(CDCC) scales of infant development.Results The incidences of preterm birth,low birth weight and twin pregnancy were significantly higher in the assisted conception group.No statistically significant difference was found in the mental development index and psychomotor development index between assisted conception and control groups.Conclusions The levels of psychomotor development in 12 months old infants born after in vitro fertilization are normal.But as the incidences of preterm birth,low birth weight and multifetation are significantly higher in vitro fertilization group,it need to follow up the ongoing development of these children.

In this study, an approach based on triple-color fluorescence probes was developed for screening potential nephro-protective bioactive substances. Three fluorescent probes (i. e. FDA, MTR and Hoechst 33342) were used to label HK-2 cells injured by doxorubicin hydrochloride, and cellular fluorescence images were subsequently acquired and analyzed by a cellular-fluorescence image microscopy platform. The established method was applied to screening 53 components of Carthami Flos, and three components C17, C18 and C19 were found to exhibit nephroprotective effects against doxorubicin hydrochloride induced injury on HK-2 cells. Eight compounds (i. e. hydroxysafflor yellow A, 6-hydroxykaempferol-3-O-rutinoside-6-O-glucoside, 6-hydroxykaempferol-3,6-di-O-gluco-side or 6-hydroxykaempferol-6, 7-di-O-glucoside, 6-hydroxykaempferol-3-O-rutinoside, 6-hydroxykaempferol-3-O-glucoside or 6-hydroxykaempferol-7-O-glucoside, rutin, isoquercetin, and kaempferol-3-O-rutinoside) in components C17, C18 and C19 were preliminarily identified by liquid chromatography-mass spectrometry (LC-MS). Isoquercetin, rutin, kaempferol-3-O-rutinoside, and hydroxysafflor yellow A were confirmed by comparing with reference substances, Further study indicated that these four compounds had moderate nephroprotective effects, while isoquercetin showed a significant nephroprotective effect in a dose-dependent manner. These results suggest that isoquercetin, rutin, kaempferol-3-O-rutinoside and hydroxysafflor yellow A might be the nephroprotective bioactive substances in Carthami Flos.
Carthamus ; chemistry ; Cell Line ; Chromatography, High Pressure Liquid ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Flowers ; chemistry ; Fluorescent Dyes ; chemistry ; Humans ; Kidney ; chemistry ; cytology ; drug effects ; Protective Agents ; chemistry ; pharmacology

Female ; Granulomatosis with Polyangiitis ; complications ; diagnosis ; Humans ; Otitis Media ; diagnosis ; etiology ; Young Adult

Purpose To characterize normal growth of the fetal fourth ventricle in the second trimester of pregnancy by standardized ultrasonography.Materials and Methods 516 cases of pregnant women with single fetus aged 18-27 weeks and 6 days were examined by conventional ultrasound.At the standard section of the fourth ventricle,the transverse dimension,anteroposterior dimension,circumference and area of the fourth ventricle were measured.Results The display rate of the fourth ventricles of fetuses aged 18-27 weeks and 6 days was up to 100％.There were no significant differences in the values of the fourth ventricles between fetuses with different gender (P＞0.05).The values of the fourth ventricle,including transverse dimension,anteroposterior dimension,circumference and area,increased linearly with the increase of gestational age,and there were positive correlations (r=0.374,0.378,0.387,0.379,P＜0.05).Conclusion The normal size of the fourth ventricle can be obtained by standardized measurement,which can be used as a reference for the clinical evaluation of the size of the fourth ventricle.