Objective:To detect and analyze the membrane estrogen receptor(mER)in primary cultured interstitial cells of Cajal(ICC).Methods:Interstitial Cells of Cajal(ICC)'s surface binding sites for 17-?estradiol(E2)were detected by cell-impermeant ligand using confocal microscopy.Radioligand binding assay and Scatchard software were used to analyzed the characteristics of mER.Results:Immunofluorescence shows the staining pattern of nonfixed,nonpermeabilized ICC incubated with E2BSAFITC.The radioligand binding assay were analyzed by Scatchard software,The Bmax of mER was 45.75 fmol/mg protein and the kD was 0.717 3 nmol/L.Conclusion:A form of the estrogen receptor is present within the cell membrane of ICC and maybe capable of mediating rapid effect of estrogen.

Objective To investigate the influence of trimetazidine combined with atorvastatin on heart func-tion and the BNP level in patients with cornary heart failure.Methods The clinical data of 400 patients with cornary heart disease were retrospectively analyzed.194 patients in the control group were treated with conventional treatment, 206 patients in the observation group were treated with trimetazidine combined with atorvastatin on the basis of the control group.The treatment effect,cardiac function and BNP level were observed and compared.Results The effec-tive rate of the observation group was 91.26%,which was significantly higer than 76.29% of the control group (χ2 =16.667,P <0.05).After treatment,the cardiac index,stroke volume,cardiac output,left ventricular ejection fraction and BNP level of the two groups were significantly higher than before treatment,and those in the observation group were significantly higher than the control group(t =2.505,2.851,3.308,3.452,all P <0.05).Conclusion Trime-tazidine combined with atorvastatin in treatment of cornary heart failure has good curative effect,it can reduce the serum level of BNP,improve cardiac function significantly,which is of great value for clinical use.

Owing to the advanced age,limb hemiplegia,dehydration,and vessel wall injury,stroke may be easy to cause venous thromboembolism (VTE).VTE mainly include deep vein thrombosis (DVT) and pulmonary embolism (PE).DVT refers to abnormal blood clotting in the veins and impedes venous return.The dislodgement of emboli from the vessel wall can form a thrombotic embolism,and cause PE,myocardial infarction,and stroke; it can not only prolong hospitalization,but also increase the mortality.This article reviews the incidence,risk factors,treatment,and prevention of DVT after a stroke.

Objective To explore the distribution and characterization of class 1 integrons in E.coli from healthy feces,and to elucidate the status of gene-cassettes.Methods Routine method was used to isolate E.coli,antibiotics susceptibility was tested by the disk diffusion method;class 1 integron was detected by PCR assay;PCR products were sequenced and analyzed.Results Of 97 samples,76 isolates were identified,and 25 isolates were multiple-drug resistant.The antibiogram was sulfamethoxazole-trimethoprim,ampicillin,streptomycin,tetracycline,erythromycin.14 of 25 isolates carried class 1 integrons,and the size of integrons differed from 1 800 bp(10 strains) to 750 bp(4 strains).The sequenced PCR product demonstrated that the 1 800 bp integron laboured aadA1-dfrA14-orf gene cassette conferred the resistance to sulfamethoxazole-timethoprim,streptomycin and aminoglycoside;the 750 bp integron laboured dfrA14 gene cassette conferred the resistance to sulfamethoxazole-trimethoprim.Conclusion The different kinds of class 1 integrons exist in E.coli from the healthy students,and determine the multiple-resistant antibiotics.

Objective: To evaluate the different multi-detector computed tomography features of benign and malignant pulmonary focal ground-glass opacity (fGGO) nodules. Methods: The demographic data(sex and age), nodule location, size, and multi-detector CT (MDCT) features (shape, margin, interface, internal characteristics, and adjacent structures) of 82 fGGO patients were retrospectively analyzed. Differences between benign and malignant fGGO were analyzed by using chisquare test, Fisher exact test, and Mann-Whitney U test. Binary logistic regression analysis was also performed to draw a regression equation. Results: The 82 fGGO patients included 61 with malignant and 21 with benign nodules. No statistical differences were found between benign and malignant fGGO nodules in terms of demographic data, nodule location, or nodule size. Binary logistic regression analysis showed that lobulation, interface, and pleural indentation were the important features of malignant nodules, with the corresponding odds ratio (OR) being 8.122, 3.139, and 9.076, respectively. The sensitivity, specificity, and accuracy of the obtained equation were 93.4%, 66.7%, and 86.6%, respectively. Conclusion: An fGGO nodule with lobulation, well-defined but coarse interface, and pleural indentation in its MDCT image, is more likely to be malignant.

Objective: To investigate the influence of lung inflation on MR perfusion imaging of human lung using an arterial spin labeling sequence called flow sensitive alternating inversion recovery (FAIR). Methods: Coronal perfusion-weighted images were obtained at different respiratory phases from 10 healthy volunteers on a 1.5T whole body scanner (GE medical system) using FAIR sequence. The changes of tagging efficiency of pulmonary parenchyma (ΔSI%), pulmonary blood flow and area of the scanning slice of different respiratory phases were analyzed. Results: (1) Significant difference was found in ΔSI% between different respiratory phases(right lung P=0.021 5, left lung P=0.008 4), with that at end expiration greater than that at end inspiration. (2) Significant difference was also found in pulmonary blood flow at different respiratory phases (right lung P= 8. 92 X 10-5, left lung P=0.000 2), with that at end expiration higher than that at end inspiration. (3) The areas of the scanning slice were also significantly different at different respiratory phases (right lung P=2.94 X 10-5, left lung P=0.000 5), with that at end inspiration larger than that at end expiration. Conclusion: Pulmonary blood flow during expiration is higher than that during inspiration, which might be due to the decreased lung volume and increased vascular density during expiration.

ObjectiveTo observe the changes of neonatal behavior neurological assessment (NBNA) and one year intellectual quotient in newborn with hypoxic ischemic encephalopathy after early intervention of rehabilitation.MethodsEighty newborns with apnea combined with hypoxic ischemic encephalopathy were divided randomly into routine group and early rehabilitation group with 40 cases in each group. Newborns in early rehabilitation group received rehabilitation treatment. All children were tested once with Chinese 20 terms NBNA before treatment and after 1 course treatment. After one-year following-up, Gesell preliminary assessment was used to test children's four items of intellectual development quotients, including abilities of action, responding to object, responding to human, and language.ResultsAfter treatment, NBNA scores of children in early rehabilitation group were significantly higher than that in routine group (P<0.01), and cases that NBNA scores over 35 in early rehabilitation group were more than that in routine group (P<0.05). After one-year following-up, the scores of intellectual development quotient of children in early rehabilitation group increased significantly compared with that in routine group (P<0.05).ConclusionEarly rehabilitation can raise NBNA sores and intellectual development quotient after one year in neonate with hypoxic ischemic encephalopathy.

Gestational diabetes refers to the first occurrence or discovery of different degrees of abnormal glucose tolerance during pregnancy, which is one of the most common complications during pregnancy. As the incidence rate increased year by year, the complications of mother and child increased significantly. In recent years, gestational diabetes mellitus has been paid more and more attention. Most of the current researches are about the diagnosis and treatment of gestational diabetes 24 weeks and later, and the theoretical basis for the screening method and treatment of early gestational diabetes is still lacking. With the further understanding of early gestational diabetes mellitus and its adverse maternal and infant pregnancy outcomes, it is imperative to actively carry out the research on the screening and treatment of early gestational diabetes mellitus.

Objective:To construct mammalian cell expression vector of human leukocyte antigen C gene and express it in JAR cell and study its functions.Methods:Total cell RNA was extracted from peripheral blood mononuclear cells and the cDNA was amplified by RT PCR;the cDNA fragments were directly inserted into Pbluescript KS(+/-) and the recombinant PBS HLA C was identified by restriction endonuclease digestion and sequencing;then the plasmid of pcDNA HLA C was transfected into JAR cells.Lactate Dehydrogenase(LDH) release assay was employed to detect the cytotoxicities of NK cells proliferated in vitro against HLA C transfectants JAR cells.Results:The recombinant mammalian cell expression vectors of pcDNA3 HLA C was constructed,the sequences of the insert was identical to the published sequences encoding HLA Cw *0602 gene.Several transfected JAR clones were obtained,which expressed HLA Cw *0602 in high level and constitutively.The specific lysis was detected for NK cells stimulated by IL 2 against JAR cells and HLA C transfectants JAR cells.But both cells were resistant to freshly isolated PBL cells.Conclusion:The recombinant mammalian cell expression vectors of pcDNA3 HLA Cw *0602 was successfully constructed,JAR cells resistance to NK lysis could involve an HLA C independent mechanism.

AIM To study the effects of cyclophosphamide (CTX) on the pharmacokinetics of buthionine sulfoximine (BSO)in Walker 256 tumor bearing rats. METHODS Walker 256 tumor bearing rats were treated ip for 4 days with saline or CTX in saline (20 mg?kg -1 ), then received iv BSO 200 mg?kg -1 . BSO concentration in rat plasma was determined by a reverse phase HPLC with fluorescence detection after precolumn derivatization with o phthaldialdehyde. Compartment model and pharmacokinetic parameters were determined by 3P87 software processed on a computer. RESULTS A single intravenous dose of BSO 200 mg?kg -1 was eliminated from plasma in a two compartment manner in tumor bearing rats. The pharmacokinetic parameters of BSO were as follows: In tumor bearing control rats, T 1/2? =(11 1?2 4) min, T 1/2? =(65?14) min, CLs=(12 8?1 3) ml?min -1 ?kg -1 , AUC=(262?26) mg?L -1 ?h; in tumor bearing CTX treated rats, T 1/2? =(8 2?1 8) min, T 1/2? =(42?3) min, CLs=(13 4?1 9) ml?min -1 ?kg -1 ,AUC=(252?35) mg ?L -1 ?h. CONCLUSION There is no significant difference between the parameters of tumor bearing control and CTX treated rats except T 1/2? .