To find a new way to treat patients with ectopic eruption of canine or impaction canine,autogenous transplantation of those teeth was explored and had good results.

Objective To explore the significance of perioperative management of percutanous laser lumbar disc decompression. Methods Retrospective analysis was carried out in 86 patients with lumbar disc herniation in order to evaluate the results of preoperative and postoperative managements. Results All patients passed through operative period safely. Total efficiency rate reach 78%(67/86). Conclusions It can be ensuring operative effect and decreasing the operative complication for the patients with lumbar disc herniation by intensifing the perioperative managment.

Age-related macular degeneration (AMD) has become a leading cause of irreversible visual loss in senior population with serious influence to their ability of living independently.Epidemiological researches have revealed various risk factors of AMD,some of which are not controllable such as age,heredity and race ;while others are modifiable such as lifestyle,eye conditions and other systemic diseases.However,the awareness of AMD risk factors is alarmingly low in public.Meanwhile,the understanding of AMD risk factors among ophthalmologists is also unsatisfactory.Therefore,the risk factors of AMD are reviewed here in order to improve the understanding of the ophthalmologists and better guide the clinical management of AMD.

Objective: To study the Antitussive, expectorant and antiasthmatic actions of Zhisou Lixiao capsule(ZLC). Methods: The incubation period and the frequency of cough in mice induced by ammonia water, the secretion of PSP from mouse bronchus and the incubation period of asthma in guinea-pigs induced by histamine were observed. Results: ZLC 0.8～3.2g?kg-1?d-1 ig could obviously prolong the incubative period of cough and decrease the frequency, ZLC 0.8～3.2g?kg-1?d-1 ig could increase the secretion of PSP in mice, 0.5～2.0 g?kg-1?d-1 increase the bronchial secretion in rats, and 1.0～2.0 g?kg-1?d-1 could prolong the incubation period of asthma in guinea-pigs. Conclusion: ZLC exerts a good Antitussive, expectorant and antiasthmatic effect.

Objective: To investigate the chemical constituents from Euphorbia helioscopia. Methods: The compounds were isolated and purified using macroporous resin, silica gel colimu, ODS, MCI gel and Sephadex LH-20, and their structures were elucidated on the basis of spectral data and physicochemical properties. Results: Sixteen compounds were isolated from 95% ethyl alcohol extract from the whole arial of E. helioscopia and identified as four terpenoides: helioscopinolide E (1), ent-kaurane-3-oxo-16β-17-diol (2), oleanolic acid (3), betulinic acid (4); six phenolics: benzoic acid (5), ethyl gallate (6), 3, 3', 4, 4'-tetrahydroxy diphenyl (7), brevifolin (8), 6-hydroxy-7, 8-methylenedioxy coumarin (9), 3, 3'-di-O-methylellagic acid (10); and five phenolics: apigenin (11), chrysoeriol (12), hyperin (13), naringenin-7-O-β-D-glucoside (14), cannabisci-trin (15), and 3β-hydroxy-cholesta-5-ene (16). Conclusion: Compounds 7-10 and 12 are isolated from this genus for the first time. Compounds 2-5 and 14-15 are isolated from this plant for the first time.

Objective: To investigate the inhibitory effect of adenovirus-mediated VEGF-siRNA on transplanted osteo- sarcoma in nude mice.Methods: VEGF-siRNA gene was cloned into the genome of replication-deficient adenovirus to construct Ad-VEGF-siRNA;the latter was then used to infect osteosarcoma MG63 cell line in vitro;and the expression of VEGF gene was detected by RT-PCR.Osteosarcoma transplantation model was established in nude mice;VEGF expression in tumor tissue was analyzed and the inhibitory effect on tumor growth and lung metastasis were also observed.Results: The recombinant adenovirus vector Ad-VEGF-siRNA was successfully constructed.In vivo and in vitro experiment both showed that Ad-VEGF-siRNA significantly downregulated VEGF expression in MG63 cells and transplanted tumor tissue. It was found that Ad-VEGF-siRNA significantly inhibited transplanted osteosarcoma growth(P

Objective To compare the survival rate of two kinds of neurovenofasciocutaneous flaps and investigate the venous reverse flow of flaps.MethodsTen New Zealand White rabbits were randomly allocated into 2 groups of 10 flaps(group A: the lesser saphenous sural pedicled fasciocutanous flaps,blood supply provided with perforator arteries;group B: the lesser saphenous sural pedicled fasciocutanous flaps,blood supply provided with axial type artery).The survival rate of flaps in two groups was observed.Pedicles of flaps were harvested and examined histologically.ResultsThe survival rate of flaps in group A was significantly lower than that in group B[(15.2?16.7)% vs(94.1?6.4)%,P

AIM: To explore the long-term efficacy of Q-factor guided laser epithelial keratomleusis ( LASEK ) for myopia and astigmatism with positive Q-factor.
METHODS: There were 158 eyes which were myopia and astigmatism with positive Q- factor taken in two groups randomly: 86 eyes accepted Q - factor guided LASEK as observation group and 72 eyes accepted routine LASEK as control group. The difference between the two groups about all data was similar. The uncorrected visual acuity ( UCVA ) and the best corrected visual acuity ( BCVA ) as well as diopter, ocular tension, corneal topography, Keratometry value K, aspherical factor Q, Higher-order aberrations ( HOA ) , corneal thickness by ultrasound and, contrast sensitivity ( CS ) , Haze were examined and compared before and after surgery. All the cased were followed up for 14d, 1, 3, 6, 12mo. And there were no statistical difference among the data before surgery.
RESULTS: After 12mo there were no statistical difference between the two groups about UCVA and BCVA. But the safety index of observation group was 1.10, that of control group was 1. 07. The validity index of observation group was 1. 06, that of control group was 0.99. The HOA of observation group was 0. 45±0. 17μm, and that of control group was 0. 72±0.25μm, there was statistically significant difference (t=-8. 193,P=0. 000). Q factor of observation group was 0. 41±0. 17, that of control group was 0. 77±0. 22, there was significant difference (t=11. 377,P = 0. 028). The contrast sensitivity of 3mo post surgery of patients in the observation group returned to the level of before surgery. But in the control group the contrast sensitivity of the patients did not returned until 6mo.
CONCLUSION:Q-factor guided LASEK for myopia and astigmatism with positive Q-factor is stable, safe and effective. The operation allow for reducing the high order aberrations, maintaining the most asphericity of cornea, saving more in corneal tissue, which cause faster recovery of contrast sensitivity, less haze and better visual quality.

Objective Intercellular adhesion molecule-1 (ICAM-1) plays an important role in mediating pulmonary infiltration of neutrophils .The aim of the study was to observe the expression of ICAM-1 and its potential regulators MK 2/HuR in pulmonary micro-vascular endothelial cells ( PMVEC ) in mice with acute respiratory distress syndrome ( ARDS) induced by lipopolysaccharide ( LPS) . Methods Ten 6-8 weeks old healthy C57BL/6 mice were randomly divided into an LPS and a control group of equal number , the former injected intraperitoneally with LPS diluted in 100 μL PBS while the latter with PBS only , both at 5 mg per kg of the body weight .At 24 hours after injection , all the mice were sacrificed .Real-time PCR was used to determine the mRNA expressions of HuR and ICAM-1 in the PMVECs, Western bolt employed to detect the protein expressions of MK2, HuR and ICAM-1, and flow cytometry adopted to measure the ICAM-1 expression on the surface of the PMVECs and pulmonary infiltration of neutrophils . Results The W/D ratio in the lung tissue of the mice was significantly lower in the LPS than in the control group (3.61 ±0.28 vs 6.16 ±0.40, P<0.05), while the rate of neutrophil infiltration markedly higher in the former than in the latter ([13.92 ±3.23]%vs [3.24 ±1.24]%, P<0.05).The mRNA and protein expressions of ICAM-1 in the PMVECs were significantly elevated in the LPS group as compared with that in the control (P<0.05), and so was the mRNA expression of HuR (P<0.05).No remarkable changes were observed in the expressions of total MK 2 and HuR proteins, but phosphorylated MK2 (p-MK2) and cytoplasmic HuR were increased in the LPS-stimulated mice. Conclusion Specific blockage or reduction of the HuR expression in PMVECs may lower the expression of ICAM-1, reduce neutrophil infiltration , and lessen pathophysiological changes in mice with ARDS .

OBJECTIVETo evaluate the significance of extended radical resection in the treatment of pancreatic head cancer and its indication.

METHODSBetween Jan. 1995 and Dec. 1998, 56 patients with pancreatic head cancer were retrospectively reviewed, among whom 35 were treated by the Whipple operation and 21 received the extended radical resection during the same interval.

RESULTSThere was no significant difference between the mortality and morbidity rate of complication, though with more patients having higher clinical stages in the extended radical resection group. The 1-, 2- and 3-year survival rates were 84.8%, 62.8%, 39.9% in the extended radical resection group and 70.8%, 47.6%, 17.2% in the Whipple operation group with significant difference between the two groups. The total mortality rate was 51.4% in Whipple group and 42.9% in extended radical resection group with significant difference between the two. The 3-year cumulative rate of death from local recurrence decreased from 37.4% in the Whipple group to 23.8% in the extended radical operation group. Patients who survived for more than 3 years were only those in clinical stage (SC)1 in the Whipple group whereas they were found both in patients who had had CS1, CS2 lesions and also in some who had CS3 lesions in the extended radical resection group.

CONCLUSIONThe extended radical operation does benefit patients with pancreatic head carcinoma in CS1, CS2 and in a part of CS3 without too extensive exrtra-pancreatic invasion.

Aged ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Neoplasm Invasiveness ; Pancreatic Neoplasms ; mortality ; pathology ; surgery ; Retrospective Studies ; Survival Rate