Aristolochic Acids ; adverse effects ; Child ; Drugs, Chinese Herbal ; adverse effects ; Female ; Humans ; Male ; Nephrosis ; chemically induced

Objective To detect the expression of metallothionein-3 (MT-3)mRNA in human esophageal squamous cell carcinoma. Methods Five cell lines of human esophageal cancer,TE-1,TE-13,TTN,ECA-109 (cell lines of esophageal squamous cell carcinoma) and OE33 (cell lines of esophageal adenocarcinoma),were used in this study. RT-PCR was employed to detect the expression of MT-3 mRNA. Peripheral blood monouclear cells from normal subjects were served as controls. Results Sequencing of RT-PCR product certified the gene of MT-3 mRNA. It was revealed by gel electrophoresis that there was expression of MT-3 mRNA in each cell line. The relative expression of MT-3 mRNA was 0.230?0.023,0.516?0.020,0.140?0.009,0.176?0.015 and 0.085?0.011 in cell lines of TE-1,TE-13,TTN,ECA-109 and OE33,respectively,significantly lower than that in controls (0.762?0.026) (P

Three primer were designed based on the consevered area of the genetic of the ATCC VR-2332 strain and LV strain. And the nest RT-PCR of testing porcine reproductive and respiratory syndrome virus were developed. The nest RT-PCR against ATCC VR-2332 strain, LV strain and B13 strain were done by this method.The DNA fragment were obtained specially from the three strains isolated from different region. The size were 430bp (430bp) , 410bp (413bp) and 410 bp (413bp) separately. But the DNA fragment were not obtained from HCV, PPV and PRV. Its sensitivity was 10-2 TCID50. It's sensitivity increased 10000 times than one step RT-PCR. It should make the method of testing porcine reproductive and respiratory syndrome virus more sensitive, fast and accurate.

Objective To investigate the prevalence and epidemiological features of valvular heart disease (VHD)adult populations with different ethnicities in Xinjiang.Methods A total of 14 618 adults aged 35 or older were surveyed.Random sampling was employed to study valvular heart diseases in different age,gender and ethnic groups.Samples were collected fiom 7 localities (Urumqi,Ke lamayi,Fukang,Turfan Basin,Hetian,Altay,Yili Hazakh Autonomous Prefecture) in 23 municipalities and 5 autonomous counties in Xinjiang.The proportion of male to female accounted for 50％ each.Results The overall prevalence of valvular heart diseases was 7.67％ (male:7.31％ vs.female:8.00％).The prevalence rates of valvular heart diseases were 10.57％,2.36％ and 12.22％in Han,Uygur and Kazakh populations,respectively.The prevalence of valvular heart diseases was lower in Uygur than in Hazak and Han ethnic populations ( x2=3.90,P=0.000).Complications related to valvular heart diseases would include hypertension (63.20％),diabetes (7.60％),coronary heart disease (7.50％) and fibrillation atrial (3.20％).Conclusion The prevalence of valvular heart diseases had a substantial increase,parallel with age.Differences were seen on the prevelance rates of VHD among ethnic populations.

OBJECTIVETo study applied anatomy of adult mandibular ramus and condyle.

METHODSObservation and measurement were made on 16 adult mandibular rami and condyles.

RESULTSThickness became gradually greater within 15 mm from the back edge of ramus. Some adult mandibular rami had no spongy bone at the level of 10 mm above mandibular foramen.

CONCLUSIONSThese date are very important for application of lag screw osteosynthesis in condylar fracture.

Adult ; Bone Screws ; Fracture Fixation, Internal ; Humans ; Mandible ; anatomy & histology ; Mandibular Condyle ; anatomy & histology ; Mandibular Fractures ; surgery

OBJECTIVETo establish a new visual educational system of virtual reality for clinical dentistry based on world wide web (WWW) webpage in order to provide more three-dimensional multimedia resources to dental students and an online three-dimensional consulting system for patients.

METHODSBased on computer graphics and three-dimensional webpage technologies, the software of 3Dsmax and Webmax were adopted in the system development. In the Windows environment, the architecture of whole system was established step by step, including three-dimensional model construction, three-dimensional scene setup, transplanting three-dimensional scene into webpage, reediting the virtual scene, realization of interactions within the webpage, initial test, and necessary adjustment.

RESULTSFive cases of three-dimensional interactive webpage for clinical dentistry were completed. The three-dimensional interactive webpage could be accessible through web browser on personal computer, and users could interact with the webpage through rotating, panning and zooming the virtual scene.

CONCLUSIONSIt is technically feasible to implement the visual educational system of virtual reality for clinical dentistry based on WWW webpage. Information related to clinical dentistry can be transmitted properly, visually and interactively through three-dimensional webpage.

Computer-Assisted Instruction ; methods ; Internet ; Oral Medicine ; education ; Software

OBJECTIVETo study the efficacy and safety of Eviprostat for the treatment of benign prostatic hyperplasia (BPH).

METHODSAn open, multicentral clinical trial was conducted in 100 patients with BPH. Patients received a 12-week oral administration of Eviprostat 2 tablets per-time, 3 times a day. The main indexes of efficacy include international prostatic symptom score (IPSS), maximum urinary flow rate (Qmax), residual urine ( Ru) and prostatic volume (V). The additional indexes are quality of life score (QOL) and average urinary flow rate (Qave).

RESULTSAfter a 12-week therapy, IPSS, QOL score, Qmax and Qave were significantly improved. IPSS was averagely decreased by 5.67 (P < 0.001); QOL score was averagely decreased by 1.44 (P < 0.001); Qmax was averagely increased by 1.70 ml/s (P <0.001); Qave was averagely increased by 1.15 ml/s (P < 0.001); Ru was averagely decreased by 5.07 ml (P = 0.046) , PSA level was averagely decreased by 0.129 microg/L (P < 0.017). The clinical adverse event rate was 1%.

CONCLUSIONEviprostat is a kind of safe, effective and preferable drug for treating BPH. It can improve the subjective symptoms and objective measures of the patients.

Aged ; Aged, 80 and over ; Drug Combinations ; Ethamsylate ; adverse effects ; therapeutic use ; Humans ; Male ; Middle Aged ; Plant Extracts ; adverse effects ; therapeutic use ; Prostatic Hyperplasia ; drug therapy ; Quality of Life ; Treatment Outcome ; Urodynamics

OBJECTIVETo investigate the roles of matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMP) in dentinogenic ghost cell tumor (DGCT) and ghost cell odontogenic carcinoma (GCOC).

METHODSThe expressions of MMP-2, MMP-9, MMP-14, TIMP-1 and TIMP-2 were examined in 15 DGCT cases and 9 GCOC cases by immunohistochemistry. Their mRNA expression in one DGCT case and one GCOC case were investigated by RT-PCT.MMP-2 and MMP-9 protein activities in the two cases were analyzed by gelatin zymography.

RESULTSMMP-9 and TIMP-1 expressions elevated greatly in GCOC, and there was a significant difference (P < 0.05) in TIMP-1 expression between GCOC and DGCT.Pro-MMP-9, MMP-9 activated form, pro-MMP-2, and MMP-2 activated forms were detected in the GCOC case, while pro-MMP-9 and MMP-9 activated form were very faint in the DGCT case. The mRNA level of MMP-9 elevated obviously in the GCOC case, which was similar to that of TIMP-1.

CONCLUSIONSThe elevated expression of MMP-9 and TIMP-1 may influence the behaviour of GCOC.

Adolescent ; Adult ; Aged ; Child ; Dentin ; Humans ; Mandibular Neoplasms ; metabolism ; pathology ; Matrix Metalloproteinases ; metabolism ; Middle Aged ; Odontogenic Tumors ; metabolism ; pathology ; Tissue Inhibitor of Metalloproteinases ; metabolism ; Young Adult

OBJECTIVETo study the effect of maxillary sinus floor elevation by the Frialit-2 Bone Condenser for implantation.

METHODS11 patients underwent sinus floor lift by The Frialit-2 Bone Condenser and were inserted 14 implants. The time of following up was 10 - 21 months.

RESULTSThere were no implant loose or lost, no clinical complaint of maxillary sinus area, and X-ray exam showed well osseointegration.

CONCLUSIONSThe Frialit-2 bone condenser can be used for lifting sinus floor, and the sinus elevation without lateral access allows the insertion of implants with no additional surgical stress for the patients.

Alveolar Process ; surgery ; Bone Transplantation ; Dental Implantation ; methods ; Dental Implants, Single-Tooth ; Female ; Follow-Up Studies ; Humans ; Male ; Maxillary Sinus ; surgery

Specific primers and TaqMan MGB probes were designed with Primer Express 2.0 software according to the conserved region of the H5, H9, H7 subtype AIV hemagglutinin gene to make research of real-time fluorescent one-step PCR in the differential detection of H5, H9, H7 subtype avian influenza inactivated vaccines. The result showed that the method was specific and reproducible. No cross-reaction was discovered with other avian disease vaccines. Real-time fluorescent PCR provided a specific, sensitive, rapid and convenient method for the subtype identification of avian influenza inactivated vaccines.
Animals ; Hemagglutinin Glycoproteins, Influenza Virus ; immunology ; Humans ; Influenza A Virus, H5N1 Subtype ; immunology ; Influenza A Virus, H7N7 Subtype ; immunology ; Influenza A Virus, H9N2 Subtype ; immunology ; Influenza A virus ; classification ; immunology ; Influenza Vaccines ; analysis ; classification ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Vaccines, Inactivated ; analysis