This study was aimed to investigate the seed protein of different forms ofTrichosanthis fructus from Shandong province. UV analyzer was used to analyze the seed protein content. PAGE fingerprint was drawn by Biosens Gel Imaging System software. The Jaccard coefficient was worked out by using NTSYS-pc software. A cluster dendrogram of different samples was established based on unweighted pair-group method with arithmetic means (UPGMA). The results showed that the content of different samples was obviously different. But there were many common bands in the fingerprints of PAGE. It was concluded that the content of seed protein cannot be used as the main index to evaluate the quality ofTrichosanthis fructus. The common bands in fingerprints of PAGE can be used to identifyTrichosanthis fructus.

Objective:To develop a new type of microelectrode used to measure free fluoride in minim solution. Methods:F--ion sensitive field transistor( F--ISFET) microelectrode was developed based on H+-ISFET combined with an Ag/AgCl referential electrode of microtube. The F--ISFET was used to determine the free fluoride ions in saliva and dental plaque fluid in microliter. And its property was investigated. Results:The test limit of F--ISFET was 10 -6 mol/L-10 -1mol/L, the linear test limit was 10 -6mol/L-10 -4mol/L, the sensitivity was 30-55 mV/pF, the responding time was less than 30 seconds, r2 was 0.97, the reclamation was 94%-104%. Conclusion:F--ISFET can be used to measure free fluoride ions in dental plaque.

Objective Heart failure is due to a variety of reasons cause of the heart to lose their official duty. The heart will not be able to work properly to meet the needs of the body, it is called pump failure. It significantly reduces the patients living ability and quality of life. Appropriate exercise training as an adjuvant therapy of heart failure can make these conditions have been improved. The present study reviewed the influence of moderate exercise training to patients with heart failure′s related factors( e. g. cardiac function,quality of life, medical expenses,etc) .

This study sought to amplify the CDS region of p55-v0 and p55-v3 gene in Pneumocystis carinii (PC) and to analyze their sequences.The total RNA extracted from PC- infected lungs of rats were used as the template to amplify these genes by RT-PCR.The amplified products were connected to T-vector and transformed into E.coli DH5α.The recombinant T-vectors were selected in LB culture medium containing ampicillin.Then the positive clones of recombinants were identified by PCR and digested by restrictive endonuclease.After that the recombinant were sequenced and analyzed.It was found that the CDS region of p55-v0 gene contained 1245 bps,encoding 414 amino acids.The homology between this sequence and the one reported previously in nucleotide and amino acid were 99.8% and 100% respectively.Meanwhile,the CDS region of p55-v3 contained 1053 bps,encoding 350 amino acids.As compared with GenBank,the homology in nucleotide and amino acid was 99.9% and 100% respectively.However,the similarity in nucleotide between p55-v3 and p55-v0 was just 20.9%.In this study,the CDS regions of p55-v0 and p55-v3 gene were cloned successfully,and the high homology was found between p55-v0,p55-v3 and the one reported previously by sequence analysis,p55-v3 was different from p55-v0 in nucleotides and amino acids.This result would provide a basis for comparison of immunologic functions so as to explore the mechanism of action of the p55-v3 gene.

Objective To investigate the correlation between the CYP2E1 enzymes and alcoholic liver disease.Methods Polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP)method was used to determine polymorphism of CYP2E1.A case control study of 183 subjects was carried out including 40 cases of alcoholic liver disease,40 alcohol dependent group,40 nonalcoholic liver disease and 63 controls.Results The frequency of B genotype or C2 allele gene was significantly higher in alcoholic liver disease than in control(P

Objective To track superparamagnetic iron oxide (SPIO)-labeled pancreatic islet cells in rats using 3.0T magnetic resonance imaging (MRI), and to detect the survival and rejection of grafts after transplantation. Methods Twenty male Wistar rats and 5 male Lewis rats were included in the study. SPIO-labeled pancreatic islet cells were tracked using a GE 3.0T Signa Excite MRI scanner with an animal coil. The images of SPIO-labeled islet cells in rats after transplantation were compared with those of the unlabeled ones. FSE T2WI sequence and GRE T2*WI sequence were used for the detection. The sensitivity of images for detection of grafts was also compared. SPIO-labeled pancreatic islet cells isolated from Wistar and Lewis rats were transplanted into the liver of Wistar rats. Afterwards, the survival and rejection of islet cells were observed sequentially in these two growps. The rats in the syngeneic group were sacrificed 3 months post-transplantation, while the rats in the allogeneic group were sacrificed 3 weeks post-transplantation. MRI of the grafts were correlated with the pathological results. Results SPIO-labeled pancreatic islet cells were seen on MRI as distinct homogenous, hypointense spots in the liver. GRE T2*WI were more sensitive to the detection of SPIO-labeled islet cells than FSE T2WI. The relative count of hypointense spots in the syngeneic group were (90.03±9.52)%, (92.87±18.21)% and (86.25±24.81)%, respectively at 1 week, 2 weeks and 3 weeks after transplantation, while the relative count in the allogeneic group were (41.40±15.41)%, (33.41±14.01)% and (23.58±16.78)%, respectively. The difference between these counts was statistically significant (P<0.01). Iron particles were detected only in the SPIO-labeled cells. Three months post-transplantation, the grafts were found well-preserved in the liver of the rats of the syngeneic group, while only a few grafts were found in that of the allogeneic group. Conclusions MRI can be used to track SPIO-labeled islet cells in vivo, and has significant value in detecting the survival and rejection of grafts after transplantation in rats.

OBJECTIVE： To evaluate the economic effectiveness of different pharmacotherapeutic schemes for the same disease.METHODS： Using pharmacoeconomical cost-effectiveness analysis， six schemes for upper urinary tract infections were compared.RESULTS： The total effective rate and cost were both the lowest in group B(70.00％ ).The cost-effectiveness ratios of A， B， C， D， E， F were 28.60、 19.13、 43.27、 29.99、 43.02、 29.14， respectively.They became 23.65、 18.01、 34.00、 24.87、 33.91、 24.20 by sensitivity.CONCLUSION： The A and F were both the most inexpensive and effective schemes.

This study was aimed to explore recognition models and to establish statistical pattern recognition methods of cold-hot property markers based on lipid components GC-MS chromatogram of Chinese materia medica (CMM). GC-MS fingerprints of lipid components contained in 60 kinds of cold or hot property of CMM were used as the research object. The database was established. Five types of model establishment strategies were compared. Optimal modeling patterns were screened for the identification of herbal property markers of lipid components GC-MS chromatogram. The results showed that support vector machine (SVM) was the best model to discriminate cold or hot property among 60 types of CMM, which were able to effectively mark the characteristic area. The strongest markers tending to cold property was at the retention time of 61.550 min, while the strongest markers tending to hot property was at the retention time of 31.395 min. It was concluded that cold or hot property of CMM had close relationship with lipid components. The lipid component was one of the material bases of CMM. The mathematical statistical model based on material base and herbal property can be used to identify and predict the cold and hot property of CMM.

Objective To investigate the effects of different doses of diphtheria toxin on cochlear structure and auditory function of adult wildtype mice.Methods The auditory-mature wild type C57BL/6J mice 4 weeks old were randomly devided into 50 ng/g group, 100 ng/g group and control group.C57BL/6J mice in the 50 ng/g or 100 ng/g group were injected 50 ng/g or 100 ng/g diphtheria toxin intraperitoneally for one time, respectively, and the control mice were injected equal volume of normal saline for one time.Then we investigated the ABR threshold change and morphological change of inner and outer hair cell and spiral ganglion neuron 7 days after the injection.Results At 7 day post diphtheria toxin injection compared with those of in control group, in the 50 ng/g group, there was no threshold elevation across frequencies(8 kHz ABR threshold was 20.0±3.78 and 20.83±2.04 dB SPL for 50 ng/g and control respectively), and no loss of inner and outer hair cells (for both groups, the HC loss rates were 0.3%~1%) or SGN (the SGN density was 39.45±3.65, 41.03±3.73/105 μm2, in 50 ng/g and control, respectively).However, the 100 ng/g group, compared with those of in control group, the ABR threshold (8 kHz ABR threshold was 63.0±4.47 dB SPL, respectively)was significantly elevated across each frequency(t=19.62,P<0.001), and there was significant loss of outer hair cell (the loss rate of IHC and OHC was 0.5%±0.1%, 10.7%±0.3%, respectively), which was 10% loss in the apical, middle and basal turn(t=42.219,P<0.001).And the loss of spiral ganglion neuron (the SGN density was 25.55±3.66/105 μm2) was 38%, which was significantly different from the control(t=10.985,P<0.001).Conclusion High dose injection of diphtheria toxin can cause loss of outer hair cell and spiral ganglion neuron in wild type auditory-mature C57BL/6J mice.

Sudden sensorineural hearing loss (SSHL),which is a common and frequently encountered disease,is considered to be a medical emergency in otolaryngology.The prevalence of SSHL is increasing in China.The pathogenesis of SSHL is not clear yet.Microcirculatory disorder of inner ear is considered as one of the most important causes of SSHL.In recent years,several reports have found the levels of serum lipids were changed in patients affected by SSHL.The relationship between SSHL and serum lipids was reviewed to provide new ideas for the diagnosis and treatment of SSHL.