AlM: To observe the effect of dacryocystorhinostomy for the treatment of chronic dacryocystitis using nasal endoscope and discuss the operation technique. METHODS: A retrospective clinical analysis was performed on the clinical data followed up for 6 ~12mo from 140 patients (169 eyes) with dacryocystorhinostomy for the treatment of chronic dacryocystitis using nasal endoscope. The effect of the treatment was evaluated and the operation technique for the treatment of chronic dacryocystitis using nasal endoscope was discussed.RESULTS: ln all of cases 155 eyes ( 91. 7%) were recovery, 3 eyes ( 1. 8%) were improved, and 11 eyes (6. 5%) were failure. The total efficiency was 93. 5%, there was no significant difference compared with traditional dacryocystorhinostomy group (χ2=3. 743, P>0. 05). CONCLUSlON: Dacryocystorhinostomy using nasal endoscope for treatment of chronic dacryocystitis has a good curative effect. Techniques including lacrimal sac location and size, colostomy position and size, treatment of colostomy mucosal flap and nasal disease, postoperative follow - up and physical condition of patients are likely to affect the operation curative effect.

Objective To investigate the long-term prognosis an d recorery of children with juvenile rheumatoid arthritis(JRA).Methods The cases diagnosed JRA in our hospital over the period of 1988～1992 we re followed up for the conditions of disease,the deteriorated joints,the treatme nt and the living conditions of patients.Results Ninty-six ca ses were followed up(involving male 66 cases,female 29 cases,the mean age of on set 8.21?3.17 years )except for a case who died of lymphoma.There were 44 cases with systemic JRA ,2 cases of them died after 7-years onset and 23 cases developed severe destructive arthritis.There were 38 oligoarthritis cases,27 cases of them stiu had active disease during 10-year following-up and 9 cases were diagnosed sacroiliitis.There were 13 polyarthritis and 3 cases of them were RF positive, who had developed severe destructive arthritis.Conclusions The prognosis of juvenile rheumatoid arthritis is not desirable,especially in systemic JRA,whose prognostic factors are related to age of onset,the lasting of fever,the markers of phlegmasia activity and the condition of systemic involvement and treatment.Oligoarthritis about 30 % may develop into ankylosing spondylitis.The probability of destructive arthritis is hi gher in polyarthritis with more RF positive and poor prognosis.

Objective To observe the effect of three different methods for the treatment of osteoporotic vertebral compressive fractures on bone density.Methods Fifty-three patients with osteoporotic vertebral compressive fractures were retrospectively analyzed.These patients were divided into conservative treatment group,vertebroplasty(PVP)group and balloon kyphoplasty(PKP)group.Quantitative computed tomography measurement of bone density(L2-4)was performed before treatment,after treatment for 3 months,half a year,1 year,1 and half a year.Results Before and after treatment,no significant changes was found in bone density during follow-up in PVP group and PKP group.Bone density was decreased after treatment for 3 months compared with that before treatment,from(86.12 ± 8.21)mg/cm3 to (85.23 ± 8.31)mg/cm3 in PVP group,from(86.32 ± 8.38)mg/cm3 to(84.98 ± 8.26)mg/cm3 in PKP group,but there was no significant difference(P ＞ 0.05),bone density returned to pre-injury level after treatment for half a year.Bone loss was found significantly after treatment for 3 months and half a year follow-up in conservative treatment group,bone density decreased significantly[(74.42 ± 8.36),(76.10 ± 8.31)mg/cm3 vs.(86.87 ±8.27)mg/cm3],and there was significant difference(P ＜0.05),and there was no significant difference between after treatment for 1 year and before treatment(P＞ 0.05).Bone density after treatment for 3 months and half a year in PVP group and PKP group was higher than that in conservative treatment group [(85.23 ±8.31),(84.98 ± 8.26)mg/cm3 vs.(74.42 ± 8.36)mg/cm3 and(86.23 ± 8.05),(86.41 ± 8.17)mg/cm3 vs.(76.10 ± 8.31)mg/cm3],and there was significant difference(P＜ 0.05).There was no significant difference among three groups after treatment for 1 year and 1 and half a year(P ＞ 0.05).Conclusions PVP and PKP are positive treatment of osteoporotic vertebral compression fractures,which could reduce the loss of bone mass and do function exercise early.It could prevent brittle fracture and vertebral compression fracture further aggravated,which are a better clinical treatment methods.

Objective To explorer the therapeutic effect of percutaneous vertebroplasty in the treatment of osteoporotic vertebral fracture.Methods Thirty patients with vertebral diseases were treated with percutaneous vertebroplasty;the therapeutic effects were analyzed statistically and retrospectively.Results The vertebral heights,Cobb angles and VAS scores were improved after operation,and 13 cases had marginal cement leakage; 30cases were followed-up for 2 to 24 months with an average of 8 months; patients with thoracolumbar lesions had obvious pain relief during follow-up.Conclu sions Percutaneous vertebroplasty has exact clinical curative effect in the treatment of elderly osteoporotic vertebral fracture.

The epitope-G1 gene of Bovine ephemeral fever virus (BEFV) glycoprotein was synthesised by PCR and cloned into expression vector pPIC9K to construct recombinant plasmid pPIC9K-G1. Then the pPIC9K-G1 was linearized and transformed into Pichia pastoris GS 115. The recombinant P. pastoris strains were selected by a G418 transformation screen and confirmed by PCR. After being induced with methanol, an expressed protein with 26 kDa molecular weight was obtained, which was much bigger than the predicted size (15.54 kDa). Deglycosylation analysis indicated the recombinant G1 was glycosylated. Western blot and ELISA tests, as well as rabbit immunization and specificity experiments indicated that the target protein had both higher reaction activity and higher immunocompetence and specificity. The recombinant G1 protein could be used as a coating antigen to develop an ELISA kit for bovine ephemeral fever diagnosis.

Animals ; Dose-Response Relationship, Drug ; Male ; Mice ; Mice, Inbred Strains ; Nickel ; toxicity ; Oxidative Stress ; physiology ; Testis ; drug effects ; metabolism

Objective The present study was to explore association of PvuⅡand XbaⅠpolymorphism in ER-?gene with genetic susceptibility for breast cancer without BRCAl/2 gene mutation. Methods 113 BRCA1/2 negative hereditary breast cancer patients from independent families and 113 agematched healthy control subjects were analyzed. Genotype analysis was conducted by polymerase chain reaction (PCR) and then DNA direct sequencing. The odd-ratios (OR) and 95% confidence intervals (CI) was calculated by unconditional logistic regression model. Results The frequency of PvuⅡpolymorphism CC(PP) ,CT(Pp) ,TT(pp) genotype in patients was found in 16 cases(14.2% ), 58 cases(51. 3% ) , and 39 cases (34. 5% ). The distribution of AA (xx) , AG (Xx) , GG (XX) genotype of XbaⅠpolymorphism were found in 76 cases ( 67. 2% ) , 34 cases ( 30. 1% ), and 3 cases ( 2. 7% ) among patients. Among premenopausal women, CT genotype of PvuⅡconfered a significantly increased risk for breast cancer compared with CC genotype ( adjusted OR = 2. 07; 95% CI, 0. 68 - 6. 30) ; Carriers of GG of XbaⅠhad a decreased risk for breast cancer (adjusted OR =0. 11; 95 % CI, 0. 01 - 1. 27) compared with AA genotype. Furthermore, combined analysis of two polymorphisms indicated individuals carrying PvuⅡCT and XbaⅠAA genotype were at increased risk for breast cancer as compared with those with PvuⅡCC and XbaⅠGG genotype (Oft = 11.43, 95% CI, 1.12-116.7) among premenopausal women. Conclusions PvuⅡand XbaⅠpolymorphisms in ER-?gene could be a candidate locus for low penetrance breast cancer susceptibility in Chinese population, especially among premenopausal women.

OBJECTIVETo investigate the influence of gene transduction mediated by lentivirus vector on human CD34+ cord blood cell (CBCs) gene expression.

METHODSCD34+ cells were isolated and transduced with the third-generation self-inactivating ( SIN) lentiviral vector carrying green fluorescent protein (GFP). The total RNA from transduced cells was extracted and the differences of genotypes between the transduced and non-transduced CD34+ cells were determined with cDNA microarray analysis.

RESULTSIn 23000 genes two were upregulated and six downregulated. These changes were not confirmed by semi-quantitative RT-PCR method.

CONCLUSIONSLentiviral vector used in this study do not influence significantly on the gene expression of CD34+ CBCs, and the vector system may be a useful and safe one in clinical gene therapy.

Antigens, CD34 ; Cells, Cultured ; Fetal Blood ; cytology ; Gene Expression Profiling ; Genetic Vectors ; Humans ; Lentivirus ; genetics ; Oligonucleotide Array Sequence Analysis ; Transduction, Genetic ; Transfection

Objective: To observe the effects of electroacupuncture (EA) on the protein and gene expressions of Bax, Caspase-3 and Bcl-2 in cerebral cortex of type 2 diabetic rats with cognitive impairment (CI), and to explore the mechanism of EA in improving the learning and memory abilities. Methods: A total of 100 Sprague-Dawley (SD) rats were divided into a normal group (n=10) and a model group (n=90) by random number table method. Rats in the model group were intraperitoneally injected with a small dose of streptozotocin (STZ) to establish the type 2 diabetic models, after being fed with high-fat and high-sugar diet for 1 month. Twenty CI rats were selected from the 50 successful model rats by the Morris water maze (MWM) test and randomly divided into a model group and an EA group according to the blood glucose level and MWM data (n=10). Rats in the EA group received acupuncture at Zusanli (ST 36), Neiting (ST 44) and Yishu (Extra), of which Zusanli (ST 36) and Neiting (ST 44) were stimulated by EA apparatus, 20 min/time, once a day for 6 d a week and 4 consecutive weeks. The rats in the model and the normal groups were fixed without treatment. After 4-week treatment, the random blood glucose level of the rats was measured; the learning and memory abilities of rats were measured by MWM; terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay was used to detect apoptotic cells; Western blot (WB) and real-time quantitative polymerase chain reaction (RT-qPCR) were used to detect the protein and gene expressions of Bax, Caspase-3 and Bcl-2 in cerebral cortex. Results: After modeling, the random blood glucose level and the escape latency tested by MWM were significantly increased, and the number of crossing the platform tested by the MWM was decreased in the EA and model groups, and were significantly different from those in the normal group (P<0.05 or P<0.01), while the differences between the model group and the EA group were not statistically significant (all P>0.05). After 4-week treatment, the random glucose level and the escape latency tested by MWM were significantly increased (both P<0.05), and the number of crossing the original platform tested by the MWM was significantly reduced (P<0.01), the protein and gene expressions of Bax and Caspase-3 were significantly increased (all P<0.001), the protein and gene expressions of Bcl-2 were significantly reduced (both P<0.001), and the number of neuron apoptosis was significantly increased (P<0.001) in the model group than in the normal group; the random blood glucose level was significantly reduced (P<0.05), the escape latency tested by MWM was significantly shortened (P<0.05), and the number of crossing the original platform tested by MWM was significantly increased (P<0.05), the protein and gene expressions of Bax and Caspase-3 were significantly reduced (all P<0.001), the protein and gene expressions of Bcl-2 were significantly increased (both P<0.001), and the number of neuron apoptosis was significantly reduced (P<0.001) in the EA group than in the model group. Conclusion: EA can improve the learning and memory damages induced by type 2 diabetic model rats with CI; the action mechanism may be achieved via anti-apoptosis.