With GC-MS、LC-UV and gene analysis,we studied Pseudonomas sp.W2 metabolic pathway of bisphenol A(Bpa).It was discovered that 4'-(trimethylsiloxy)-Acetophenone、p-Hydroxy benzaldehyde and p-Hydroxy benzoic acid are medium metabolites and that the bacteria has pcaG.

Objective To study the method and therapeutic results of intra-arterial interventional treatment (selective intra-arterial fibrinolysis) in acute cerebral infarction(ACl).Methods A total of 106 patients with ACI are divided into two groups:selective intra-arterial fibrinolytic therapy group(SIAF),intra-venously thrombolysis group(IVF);SIAF is selective entered into the obliterative artery with improved Seldinger's technich,pumped urokinase(UK) in a dose of 500 000 i.u.in NS.60ml within 40 minutes;arteriography is done all the time to know if the obliterative artery is unobstruct- ed,if it remains obstructe,then pumps 300 000 i.u.of UK,as long as it unobstructed,the treatment is finished at once; IVF is injected 1000 000 i.u.of UK in NS.150 mL by intravenous drip within 40 minutes,others like SIAF.Results The artery is disobliteration after thrombolysis,48 patients in SIAF,30 patients in IVF,P

Objective:To observe the clinical effect of electroacupuncture (EA) at four sacral points on overactive bladder syndrome.Methods:A total of 120 female patients with overactive bladder syndrome were allocated to a treatment group of 80 cases and a control group of 40 cases on a voluntary basis.The patients in the treatment group received EA at four sacral points,and the treatment was given three times a week for 6 consecutive weeks,while the patients in the control group received oral administration of M-receptor antagonist tolterodine tartrate,which was given 4 mg each time,once a day for 6 consecutive weeks.Then the symptom scores were compared between the two groups before and after treatment.Results:At the end of treatment,the symptom scores showed statistical significant differences in comparing with those before treatment in both groups (both P＜0.01);the symptom score in the treatment group was lower than that in the control group,showing a statistically significant difference (P＜0.05).Conclusion:EA at four sacral points is an effective method for overactive bladder syndrome.

Molecular imprinting technique (MIT) involves the synthesis of polymer in the presence of a template to produce complementary binding sites in terms of its size, shape and functional group orientation. Such kind of polymer possesses specific recognition ability towards its template molecule. Despite the rapid development of MIT over the years, the majority of the template molecules that have been studied are small molecules, while molecular imprinting of proteins remains a significant yet challenging task due to their large size, structural flexibility and complex conformation. This review, we summarized the research findings over the past years, and discussed the nano-reinforcing materials used to prepare molecular imprinting of proteins and the perspective of these nano-reinforcing materials.
Binding Sites ; Molecular Conformation ; Molecular Imprinting ; Nanostructures ; chemistry ; Polymers ; chemistry ; Proteins ; chemistry

Diagnosis, Differential ; Ependymoma ; metabolism ; pathology ; Female ; Hemangioblastoma ; metabolism ; pathology ; Humans ; Ki-67 Antigen ; metabolism ; Meningeal Neoplasms ; metabolism ; pathology ; surgery ; Meningioma ; metabolism ; pathology ; surgery ; Middle Aged ; Mucin-1 ; metabolism ; Neoplasm Recurrence, Local ; Vimentin ; metabolism

To investigate the effects and potential mechanisms of hyperoside (Hyp) on the vascular endothelium function in middle cerebral artery (MCA) ex vivo in rats. Isolated arterial segments from MCAs of rats were used for surveying vasomotoricity in a pressurized chamber. Transmembrane potential was recorded by using glass microelectrodes to evaluate hyperpolarization. Hyp (1 x 10(-6)-1 x 10(-4) mol . L-1) was utilized to observe the effect on 1 x 10(-7) mol . L-1 U46619-preconstricted MCA in rats. The results showed that 1 x 10(-6)-1 x 10(-4) mol . L-1 Hyp significantly induced concentration-dependent vasodilatation and hyperpolarization, leading to the maximal diastolic ratio of (73. 2 ± 6. 1)% and maximal changes in membrane potentials of (-13. 2 ± 2. 2) mV. Hyp still elicited vasorelaxation and hyperpolarization by removal of endothelium in MCA of rat, which was notably attenuated as compared with vascular endothelium-intact group (P <0. 01). In the MCAs preconstricted by U46619 (1 x 10(-7) mol . L-1), Hyp (1 x 10(-6)-1 x 10(-4) mol . L-1) produced concentration-dependent vasorelaxation and hyperpolarizition that were partially attenuated by 3 x 10(-5) mol . L-1 L-NAME(a NOS inhibitor) plus 1 x 10(-5) mol . L-1 PGI2 ,(a synthetase inhibitor). The residual effects were further decreased by 1 x 10(-3) mol . L-1 TEA (an inhibitor of Ca2+-activated potassium channel) or 1 x 10(-5) mol . L-1 PPG (a blocker of endogenous H2S synthese-CSE). Similarly, 1 x 10(-5)-1 x 10(-3) mol . L-1 NaHS (a donor of exogenous H2S) or 1 x 10(-5)-1 x 10(-3) mol . L-1 L-Cys (the substrate of endogenous H2S synthesis) obviously evoked dose-dependent vasodilatation and hyperpolarization of MCA in rats. These findings indicated that Hyp may induce endothelium-dependent and endothelium-independent responses. And the endothelium-dependent vasodilatation may be related to the increases of endogenous H2S that has been promoted Hyp in the endotheliocyte of MCAs, and activated Kca and opening of Kca channels, resulting in the hyperpolarization of vascular smooth muscle cell membrane and subsequent reduction of Ca2+ influx and vasodilation.
Animals ; Endothelium, Vascular ; drug effects ; Enzyme Inhibitors ; pharmacology ; Female ; Male ; Middle Cerebral Artery ; Muscle, Smooth, Vascular ; drug effects ; Nitric Oxide ; metabolism ; Potassium Channels ; metabolism ; Quercetin ; analogs & derivatives ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Sulfides ; metabolism ; Vasodilation ; drug effects ; Vasodilator Agents ; pharmacology

The stable and controllable quality of decoction pieces is an important factor to ensure the efficacy of clinical medicine. Considering the dilemma that the existing standardization of processing mode cannot effectively eliminate the variability of quality raw ingredients, and ensure the stability between different batches, we first propose a new strategy for Chinese medicine processing technologies that coupled with individuation processed and cybernetics. In order to explain this thinking, an individual study case about different grades aconite is provided. We hope this strategy could better serve for clinical medicine, and promote the inheritance and innovation of Chinese medicine processing skills and theories.
Chemistry, Pharmaceutical ; methods ; standards ; Cybernetics ; standards ; Drug Therapy ; standards ; Drugs, Chinese Herbal ; chemistry ; standards ; toxicity ; Humans ; Quality Control

To investigate the protective effect of preconditioning with hyperoside ( Hyp) against myocardial ischemia-reperfusion injury (MIRI) in rats and the role of PI3K/Akt signaling pathway. MIRI was established by ligation of left anterior descending coronary artery for 30 min followed by reperfusion for 120 min in rats. Male SD rats were randomly divided into five groups: sham group,model group (MIRI),Hyp preconditioning group(Hyp), Hyp preconditioning + LY294002 (a PI3K/Akt signaling pathway inhibitor) group (Hyp + LY), and LY294002 group (LY). At the end of reperfusion, hemodynamic parameters were recorded as left ventricular systolic pressure (LVSP) , left ventricular end-diastolic pressure ( LVEDP) and maximal rate of increase and decrease of left ventricular pressure (± dP/dt(max)). Myocardial infaret size, the oxidative stress markers, myocardial enzymes indicators and inflammatory factors were also analyzed. The expressions of Akt, p-Akt, Bax and Bcl-2 proteins was detected by using Western blot method. The results showed that Hyp preconditioning remarkably improved cardiac constriction and relaxation function, reduced myocardial infarct size and enhanced the activities of oxidative stress markers about correlated to MIRI, such as superoxide dismutase (SOD), catalase (CAT) and glutathione-peroxidase (GSH-Px) and decreased the contents of malondialdehyde (MDA) as compared with MIRI group. Simultaneouly, the levels of myocardial enzymes, i. e. creatine kinase ( CK) and creatine kinase MB isoenzyme (CK-MB), and inflammatory factors, for instance tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) were decreased. Hyp pretreatment apparently restrained myocardial apoptosis as evidenced by decreasing the level of Bax expression, increasing the levels of phosphorylation of Akt and Bcl-2 expression. These effects were inhibited by LY294002, a blocker of PI3K/Akt signaling pathway. These findings indicated that the cardioprotection of Hyp preconditioning against MIRI may be related to activating PI3K/Akt signaling pathway, upregulating the expression of BCL-2 protein and down-regulating the expression of Bax protein.
Animals ; Creatine Kinase ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Heart ; drug effects ; Humans ; Interleukin-6 ; genetics ; metabolism ; Ischemic Preconditioning, Myocardial ; Male ; Malondialdehyde ; metabolism ; Myocardial Reperfusion Injury ; drug therapy ; enzymology ; genetics ; prevention & control ; Phosphatidylinositol 3-Kinases ; genetics ; metabolism ; Proto-Oncogene Proteins c-akt ; genetics ; metabolism ; Quercetin ; administration & dosage ; analogs & derivatives ; Rats ; Rats, Sprague-Dawley ; bcl-2-Associated X Protein ; genetics ; metabolism

· AlM: To observe the characteristic of choroidal circulation in diabetics and investigate its changes as well as the relationship between it and the development and progression of diabetic retinopathy ( DR) .
·METHODS:All 45 diabetics were divided into 3 groups:no diabetic retinopathy ( NDR), nonproliferative diabetic retinopathy ( NPDR ) , proliferative diabetic retinopathy ( PDR);and 20 health people were selected to be control group.All subjects were examined by FFA and indocyaine green angiography ( lCGA ) ( Heidelberg retina tomography, Germany ) at the same time. The characteristics of angiograph results were comparatively observed and the feature of diabetic choroidapathy were analyzed.
· RESULTS: ( 1 ) There were no significant differences between DR groups and control group in the central retinal artery ( CRA ) filling time.There were significant decreases of the choroidal artery filling time in DR groups, compared to the control group (P<0.05).(2) ln all DR groups, the more serious DR, the bigger proportion of reverse filling.( 3 ) With more serious DR, the ratio increased gradually in early phase of choroidal filling deficiency angiograph and in the late phase of spot hyperfluorescence.
·CONCLUSlON:lCGA may be a useful adjunct to FFA in the evaluation of choroidal vascular changes in DR.The research provides that the diabetic choroidal circulation was abnormal before the occurrence of DR, which fully proved the presence of diabetic choroidopathy.

Microbiology is one of the fundamental courses in life science and its theories and application techniques are being developed rapidly, in order to arouse the students interest and help them master better the knowledge of microbiology, we have attemped an exploration and reform in the traditional teaching methods of this subject, our study would center on multimedia teaching methods of microbiology, its content were chiefly multimedia microbiology; multimedia microbiology experiment and microbiology network teaching.