Objective To express and preliminary identify scavenger receptor B2 (SCARB2)protein.Methods SCARB2 cDNA was amplified by reverse transcription-polymerase chain reaction (RT-PCR)from mRNA extracted from RD cells,and cloned into pMD19-T vector.Expression vector pET28a(+)/SCARB2 was constructed,and SCARB2 protein was expressed in prokaryotic ex-pression system.Obtained recombinant proteins were identified by detection of Western blot using His labeled monoclonal antibody.Results Recombinant SCARB2 proteins,expressed by induction of isopropy-β-D-thiogalactoside (IPTG),were success-fully purified and specifically recognized by His labeled monoclonal antibody.Conclusion SCARB2 proteins could be expressed and identified successfully,which could provide reference for researching mechanism of enterovirus type 71 (EV71)and scavenger re-ceptor protein,and for preparation of SCARB2 monoclonal antibodies.

Endocrine therapy targeting estrogen pathway is one of the ifrst-line treatment choices of advanced breast cancer. Fulvestrant is a pure estrogen antagonist that blocks and downgrades estrogen receptor, which makes it effective in the treatment of progression after prior endocrine therapy. Fulvestrant 250 mg per month regime was approved for postmenopausal women with hormone-positive advanced breast cancer after progression or recurrence on antiestrogen therapy. Fulvestrant 500 mg per month regime was approved by the EMA and the US FDA in the same population based on the CONFIRM trial which proved improved efifcacy and similar tolerance compared with 250 mg regime. Recent trials were focused in the ifrst-line treatment and combination use with other therapeutics. This review discusses the advances of fulvestrant in postmenopausal women with hormone-positive advanced breast cancer.

The mesoporous manganese dioxide (MnO2) materials were synthesized by the calcinations of manganese carbonate (MnCO3) precursors in air atmosphere at 300, 350 and 400℃. The slurries of MnO2 and binder were sprayed on the quartz electrodes. Quartz crystal microbalance (QCM) was conducted with cyclic voltammetry to analyze the electrochemical behaviors of the three MnO2 samples in 0.1 mol/L sodium sulfate (Na2SO4). The mass of the three samples were generally increased during potential cycling, especially in the first stage, which suggested that an irreversible reaction process occurred. The as-synthesized MnO2 at 300℃ had the better electrochemical stability and capacity retentivity. The three materials were assembled to (-) active carbon/MnO2 (+) supercapacitors and the charge-discharge tests were conducted. The results showed that 35％-40％ capacity loss was occurred in the initial cycling, and the total discharge capacities of MnO2 formed at 300℃, 350℃, 400℃ were 15.9, 12.9, 11.7 mA h/g, respectively. The detection results of QCM method were consistent with that of the charge-discharge tests, suggesting that this QCM method could be used for distinguishing the electrochemical performance of mesoporous MnO2 materials.

Objective The patient started from St. Louis (U. S.), and reached Chengdu (China) after 3 days of flight(St. Louis- Tokyo- Beijing - Chengdu). The patient felt unwell, so he and the two relatives took a taxi to the Emergency Center of Sichuan Provincial People' s Hospital for treatment. The epidemiological survey showed that, the patient had been living in the University of Missouri in the United States, no pigs died locally, there were no markets for the living pigs, farmers markets, farms, and slaughterhouses, and he hadn't contact with pigs. But 4 days before the onset, he closely contacted with a schoolmate, who had cold symptoms. The pa-tient had never been to virus laboratory 7 days before the onset. Clinical examinations showed that, the patient had a fever (37.8 ～ 38.8℃), WBC 7.9×10-9 L-1, N 5.475 × 10-9 L-1, L 19.5% ;the chest X-ray shewed that texture increased and the heart shadow augmented on both lungs; the result of throat swab culture was negative. The result of virus nucleic aeid detected by Sichnan Provincial Center for Disease Control showed H1N1 influenza virus, suspected. Sichuan Province Health organization organized experts on the prevention and control of H1N1 influenza for consultation, and the patient was diagnosed as the first suspected H1N1 influenza case in mainland China based on the epidemiological investigation, symptoms and signs of the patient, the results of laboratory ex-amination, and the result of virus test. Confirmed by the experts from Chinese center for disease control and pre-vention and The Ministry of Health of the People's Republic of China, the patient was diagnosed as the first H1N1 influenza case in mainland China.

Objective To observe the protective effects of enalapril on the long-term functions of the allograft in renal transplant recipients. Methods Twenty renal transplant recipients with ~survival time over one year, normal renal functions of the allograft and urine TGF-?_1 levels being more than ~250.0 pg/mg.Cr took enalapril every day for at least one year. Twenty-three recipients under the same conditions who did not receive enalapril served as control group. Three years later renal ~dysfunction cases, loss of creatinine clearance rate (Ccr) and TGF-?_1 levels in blood and urine were compared between the two groups. The changes in the expression of TGF-?_1mRNA in renal biopsy specimens were compared before and one year after enalapril therapy. Side-effects of enalapril were ~investigated in all patients in enalapril-treated group. Results Three years later, the number of renal dysfunction cases was less, the loss of Ccr was less and the level of urine TGF-?_1 was lower in ~enalapril -reated group than those in control group with the differences being significant (P~0.05 ). One year after enalapril therapy TGF-?_1mRNA expression was significantly decreased in renal biopsy specimens (P

The effects of tetramethylpy-razine (TMP) on pancreatic blood flow and survival rate were studied in sodium tarocholate-in-duced acute pancreatitis (AP) in rats. The results showed that pancreatic relative blood flow and pancreatic tissue perfusion were significantly increased and the pathologic changes and survival rate were improved in TMP treated group-s. Plasma value of TXB2?6-Keto-PGF1? and platelet aggregation rate (PAR) were also mea-sured. We found that TMP could maintain the balance between TXA2 and PGI2 and lower the elevated PAR. It was suggested that TMP has therapeutic effect on AP in rats through improving pancreatic microcirculation; which was related to the maintanance of the balance between PGI2 and TXA2.

AIM: To observe the effect of Chang'ankang Capsule (Radix Astragali, Rhizoma loptidis, Flos Lonicerae, etc.) on rat's colitis induced by trinitrobenzene sulfonic acid (TNBS) and investigate its mechanism. METHODS: The rat's colitis was induced by TNBS and ethanol, one week later the rats were given the medicine for 14 days. The 21st day the mucosal damage index (CMDI) and histopathology (HP) of the colon were observed. Meanwhile the level of myeloperoxidase (MPO), nitric oxide (NO), superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), maiondiadehyde (MDA), catalase (CAT) were detected. RESULTS: CMDI and HP, biochemistry in model rats showed that the models were successful. Chang'ankang groups significantly alleviated CMDI, HP, and improved the high level of MPO, NO and MDA, promoted the content of SOD, GSH-PX, CAT. CONCLUSION: Treatment with Chang'ankang shows beneficial effects on rat's ulcerative colitis by alleviating damage of free radical and NO and leukocyte.

Objective To study the genomic molecular organization and genogroup of human metapneumovirus(hMPV) infected infants in Guangzhou of China. Methods Primers were designed on the basis of the genomic sequence of hMPV 00-1 strain(AF371337) in the GenBank, and amplify hMPV genomeby RT-PCR. The PCR-products were cloned to T vector and sequenced, the genomic nucleotide sequences were analyzed with the programs Clustal W/X, DNASTAR and MEGA4. 1. Results The cloned strainhMPVgz01 genome is 13 327 bp in length, the genome contains eight open reading frames in the order 3-N-P-M-F-M2-SH-G-L-5. The genomic sequences of hMPVgz01 strain are compared with those of hMPV in GenBank, revealed that the homology with hMPV group A ranges between 92%-97%, homology with group B is 81%, and with avian metapneumovirus group C is 71%, the highest homology is with BJ1887 strain of genogroup A2b. The N, F, G genes of hMPVgz01 strain are compared with those corresponding genes of hMPV subgroups A1, A2, B1, B2, revealed that the highest homology is also with genogroup A2b. Conclusion The complete nucleotide sequence of hMPVgz01 strain isolated from Guangzhou in China is 13 327 bp in length, GenBank accession No. is GQ153651. Comparison of the genomic sequence and three genes of hMPVgz01 strain with those corresponding sequences of hMPV show the highest homology is with genogroup A2b. Sequence and phylogenetic analysis of the hMPVgz01 strain revegled that this isolate belongs to genogroupA2b.

OBJECTIVE:To study the pharmacological action of Qiweikaixin Granules.METHODS:Brain injured-olfac?tory bulb damage type was adopted,and the rats were divided into normal control group,pseudo-operation group,model group,hydrochloric acid clomipramine group and Qiweikaixin Granules(high,moderate,mild dosage)group,the behaviors of each group was observed,the contents of adrenocorticotrophic hormone corticotrophin(ACTH)and cortisol(COR)in plasma were also observed.RESULTS:In both the open field test and the heliophobic test,the behaviors of the model group had obvious changes;both the Qiweikaixin Granule group and the hydrochloric acid clomipramine group significantly resisted the change of behaviors of rats;the contents of ACTH and COR in the plasma of the model rats group increased significantly(P

Objective To investigate the factors affecting the stability of the volatile oil extracted fromYinqiaosan Decoction.Methods The main chemical compositions and the extraction repetitiveness of the compound volatile oil were determined by GC-MS, and the stability of multiple extracted volatile oil was studied. Absorbance of the compound volatile oil was used as the evaluation index, and the factors affecting the stability of the of the compound volatile oil were investigated, such as illumination, temperatures and pH values of volatile oil solution and metal ions.Results The results of the GC-MS chromatograph indicated that the main chemical compositions of the compound volatile oil extracted fromYinqiaosan Decoction twice were the same. The results of the stability of the volatile oil showed that the preservation temperature and illumination affected the stability of the volatile oil to a certain extent. The absorbance values of the compound volatile oil changed slowly when it was stored at a relatively low temperature (4℃) and shielded from light, and it was less stable when stored in normal temperature and under illumination. Meanwhile, the absorbance of the compound volatile oil changed quickly in acid or alkaline solutions and was in instability. The metal ions, such as Cu2+ and Fe3+, have chemical reactions with the compositions of the compound volatile oil and there was a big change in the UV-Vis spectrum of the compound volatile oils.Conclusion The compound volatile oil should be stored at a relatively low temperature (4℃) and shielded from light. At the same time, it should be stored avoiding acids, alkaline and the metal ions, such as Cu2+ and Fe3+, to guarantee its stability. This study provides a reference for the preservation conditions and the preparation conditions of the compound volatile oil extracted fromYinqiaosan Decoction.