Three candidate antisense target sites of mouse Fas gene were screened by PARASS (poly-A anchored RNA accessible sites screening) technology. They were target at Fas gene 297nt-317nt, 618nt- 638nt and 662nt-682nt. Antisense oligos (A1, A2 and A3) and DNAzymes (D1, D2, and D3) for every target site were designed and synthesized. In vitro, the validation of the sites were judged by antisense oligos included RNase H splicing and the DNAzyme degradation. The results indicated that A1, A2 and A3 introduced RNase H degradation. DNAzymes D1, D2 and D3 cleaved Fas mRNA effectively. Neither degradation observed in antisense oligo RNase H group in non-target site (1211-1231nt) and 2 bases mismatched of A3, nor splicing occurred in DNzyme group in non-target site ( 1211-1231nt) and 2 bases mismatched of D3. Site 2 and 3 were at the same positions with those of ISIS Pharmaceuticals. The effective antisense oligos and DNAzymes for Fas gene could be used for the research subsequently.

Objective To examine the expression of toll-like receptor 2(TLR2)in peripheral blood monocytes and explore its association with disease stages and clinical manifestations and to explore the patho- genesis of rheumatoid arthritis(RA).Methods The expression of toll-like receptor 2 in peripheral blood monocytes from 47 RA patientis(27 in active stage and 20 in stable stage)and 18 normal individuals were de- tected by flowcytometry and RT-PCR.Results The expression of toll-like receptor 2 in peripheral blood monocytes in patients with active disease was significantly increased compared to non-active patients and nor- mal individuals,The expression was found to correlate with the Disease Active Score(DAS),serum C-reactive protein(CRP)level and the erythrocyte sedimentation rate(ESR),but not correlate with rheumatoid factor (RF)and the anti-cyclic citrullinated peptide(CCP)antibody.Conclusion The expression of toll-like recep- tor 2 in peripheral blood monocytes of patients with active RA is significantly increased.And the expression is correlated with disease activity index.The innate immune system is activated in patients with active disease. And the increased expression may promote the activities of monocytes.

Objective To observe the effect of Xiaochaihu decoction(XCD) on experimental endometriosis in rats.Methods Rat models of endometriosis were established and the effect of XCD were evaluated by measuring the volume of ectopic endometrium (EE) and its ultrastructure with transmission electron microscopy.Results After treatment,moderate and high-dosage of XCD(10g/kg and 15g/kg respectively) could markedly inhibit endometrial explant growth and decrease the volume of EE(P 0.05).Meanwhile,the glandular cells in the endometrium after treatment in the moderate and high-dosage groups showed characteristic features of apoptosis:cellular atrophy,condensation of cytoplasm and nuclear chromatin and increase of their density,occurrence of the intercellular apoptotic bodies as well as degeneration and necrosis of stromal cell.Conclusion XCD has obvious effects in inhibiting ectopic endometrium and its mechanism may be related to the reduction of cell death (including apoptosis and necrosis) by regulating the immune function.

OBJECTIVE: To explore the applicability of integration between three-dimensional (3D) facial and dental data to evaluate the nasolabial morphology variation before and after the cross-arch fixed restoration of the maxillary implant-supported prostheses. METHODS: Twelve patients (4 women and 8 men), mean age (54.82±5.50) years (from 45 to 62 years) referred to the Department of Oral Implan-tology, Peking University School and Hospital of Stomatology, were selected and diagnosed with edentulous maxilla. For all the patients, 4 to 6 implants were inserted into the maxilla. Six months later, the final cross-arch fixed prostheses were delivered. The 3D facial images were collected before and after the final restoration. The 3D data of prostheses were also captured. All the 3D data were registered and measured in the same coordinate system. Then the displacement of all the landmarks [cheilion left (CHL), cheilion right (CHR), crista philtri left (CPHL), crista philtri right (CPHR), labrale supe-rius (LS), subnasale (SN), stomion (STO), upper incisor (UI), upper flange border of the prostheses (F-point, F)], and the variation of the distances between these landmarks (SN-LS, CPHR-CPHL, CHR-CHL, LS-STO) were analyzed and compared. RESULTS: The consistency test among three measurements of the length of F-SN indicated that the integration method of the dental prostheses and soft tissue had the good repetitiveness, ICC=0.983 (95%CI: 0.957-0.995). After wearing the final cross-arch maxillary implant-supported prostheses, all the landmarks on the soft tissue moved forward. The nasal base area changed minimally, and the shift of SN in the sagittal direction was only (0.61±0.44) mm. But the sagittal shift of LS was (3.12±1.38) mm. In the vertical direction, SN, LS, CPHL, and CPHR moved upward. But STO, CHL, and CHR moved downward a little. Except for the slight decrease of the length of philtrum (SN-LS), the length of CHL-CHR, CPHL-CPHR, and the height of upper lip were increased together (P < 0.01). In the direction of Z axis, the strong correlations were found not only between the movements of SN and F (r=0.904 3) but also between the movements of LS and UI (r=0.958 4). CONCLUSION The integration method of 3D facial and dental data showed good repetitiveness. And the strong correlations between the landmarks of prostheses and nasolabial soft tissue in the sagittal direction were found by this new method.
Female ; Humans ; Incisor ; Lip ; Male ; Maxilla/surgery* ; Middle Aged ; Mouth, Edentulous ; Prostheses and Implants

Objective To establish an automatic synthesis method for 11C-carfentanil (CFN) as an novel opiate receptor radioligand and study its biodistribution in rats. Methods 11C-Triflate-CH3 was bubbled into 0.5 mg precursor desmethyl-CFN (which was dissolved in 0.15 ml DMSO) to generate 11C-CFN in a V-tube at room temperature. Sep-Pak C2 column was used for purification of 11C-CFN, which was eluted by 3ml binary system aqueous solution, 10 ml water thrice, and then I ml ethanol. The biodistribution (% ID/g) of 11C-CFN in SD rats was studied. SPSS 13.0 was used for statistical analysis. Non-normal distribution data were analyzed using nonparametric test. Results The synthesis time for 11C-CFN was 20 min (end of bombardment, EOB). The synthesis yield was (35.5 ± 2.2) % on average (n = 12, uncorrected)with the radiochemical purity over 98%. Biodistribution study in rats showed that the tracer had a high brain uptake, rapid blood clearance, and a metabolic pathway via liver and kidney. The highest tracer uptake was in thalamus (4.26 ± 0.89) % ID/g and striatum (4.05 ± 1.08) % ID/g at 5 min after injection, followed by cerebral cortex (2.63±0.89) %ID/g, pons (2.26 ±0.57) % ID/g, hippocampus (2. 17 ±0.55) %ID/g and cerebellum (2. 15 ±0.39) %ID/g. Conclusions The automatic synthesis of 11C-CFN is fast and reliable, and this radioligand can be used for opiate receptor imaging.

OBJECTIVETo investigate the hard and soft tissue changes following the treatment of Class II division 1 malocclusion using Twin-block appliance.

METHODS50 Class II division 1 malocclusion subjects whose handwrist radiographs were in FG-G stage were selected. One group (27 patients) was treated with Twin-block appliance, the other group (23 patients) was observed without treatment The acquired data of cephalometric of two groups were analyzed statistically with SPSS 11.0.

RESULTSSoft tissue changes, Ls-E, Li-E, U1-Stms, Stms-Stmi, NsLs-FH, LsNsLi, LsNsPg', the angle of H decreased. Sn-Stms, Stmi-Me', Ns-Me', Sn-Me', NsLi-FH, NsPg'-FH, A'Ls-FH, B'Li-FH, LiB' Pg', CmSnLs, GSnPg', the angle of Z increased, there was statistically significant difference (P < 0.05). Hard tissue changes, SNB, L1-NB, IMPA increased, ANB, U1-SN, U1-NA, FMIA decreased, there was statistically significant difference (P < 0.05).

CONCLUSIONSagittal relationship between upper- and lower-jaws is effectively improved after orthopedics with Twin-block appliance. Lower face height increases. Soft tissue profile tends to be straight-styled.

Cephalometry ; Face ; Humans ; Malocclusion ; Mandible

U937 macrophages were cultured with various concentrations of glucose and/or insulin for 24 h.Cell membrane scavenger receptor(SR)-BⅠprotein and mRNA were detected by Western blot and RT-PCR. The results showed that basal physiological insulin levels promoted SR-BⅠprotein expression of macrophages and high concentration of insulin significantly downregulated SR-BⅠ,but the transcription of SR-BⅠmRNA did not change.High glucose and high insulin accelerates atherosclerosis through synergetically downregulating SR-BⅠprotein expression,which may cause early onset and rapid progression of atherosclerosis in the patients with metabolic syndrome and type 2 diabetes mellitus.

Objective To compare the clinical effect of 2D and 3D laparoscopic radical prostectomy and summarize surgical experience of laparoscopic radical prostectomy of early prostate cancer.MethodsThe clinical data of 34 cases of prostate cancer treated in our institute from November 2015 to April 2016 were collected and analyzed retrospectively. The patients in observation group (11 cases) were treated by 3D laparoscopic radical prostectomy, while those in control group (23 cases) were given 2D laparoscopic radical prostectomy. The operation time, intraoperative bleeding volume, postoperative drainage time, quantity of drainage fluid within 24 hours postoperatively, indwelling catheter time, hospital time, positive surgical margin rate, potence rate, 30d-urinary continence rate and complications were compared between the two groups.Results All operations were successfully performed. There were no signiifcant differences in operation time, intraoperative bleeding volume, postoperative drainage time, quantity of drainage lfuid within 24 hours postoperatively, indwelling catheter time, hospital time, positive surgical margin rate, potence rate, 30d-urinary continence rate and complications between the two groups (P > 0.05). In observation group, the operation time was (153.52 ± 30.47) min and the potence rate was 50.0 %, 4 cases with uroclepsia (36.4 %), 1 case with urine leakage (9.1 %), no patient had urethral stricture or positive surgical margin, the 30d-urinary continence rate was 72.7 %. In control group, the operation time was (164.73 ± 28.65) min and the potence rate was 38.9 %, 13 cases with uroclepsia (56.5 %), 4 cases with urine leakage (17.4 %), 1 case with urethral stricture (4.3 %), 2 cases with positive surgical margin (8.7 %), 30d-urinary continence rate was 60.9 %.ConclusionLaparoscopic radical prostectomy is a safe, effective and less invasive method for treating early prostate cancer patients. Also 3D laparoscopic radical prostectomy play the similar functional results compared with 2D laparoscopic radical prostectomy, but 3D laparoscopic has the advantage in three dimensions space sense and accurate operation, it is worthy of promoting clinical application.

OBJECTIVETo study the expression of metallothionein (MT) and FasL in colorectal cancer and their relation to lymph node and liver metastasis.

METHODSImmunohistochemistry and quantitative RT-PCR were used to detect expression of MT and FasL in protein and mRNA levels in 93 cases of colorectal cancer.

RESULTSThe rates of MT expression in primary foci, non-cancerous colon mucosa, lymph node metastasis and liver metastasis were 58.1%, 32.3%, 81.1%, 64.3% respectively. And the rates of FasL expression were 41.9%, 19.4%, 62.3%, and 92.9% respectively. The positive rates of MT and FasL in primary foci, liver and lymph node metastasis were higher than that in non-cancerous mucosa (chi(2) = 35.2421, 57.5152, P < 0.01). MT expression rate in lymph node metastasis was higher than that in primary foci (chi(2) = 8.0565, P < 0.01). In liver metastasis, FasL expression rate was higher than in lymph node metastasis and primary foci (chi(2) = 8.6674, 22.4455, P < 0.01). The positive rates of MT and FasL in Dukes stage C and D were higher than that in Dukes stage A and B (chi(2) = 18.8871, 25.1650, P < 0.01). And higher rates of MT and FasL expression were observed in low differentiation adenocarcinoma and mucus adenocarcinoma than in middle-high differentiation adenocarcinoma (chi(2) = 11.1546, 9.2239, P < 0.05). High MT mRNA level was found in lymph node metastasis and high FasL mRNA level in liver metastasis.

CONCLUSIONSEnhanced expression of MT and FasL was associated significantly with lymph node and liver metastasis of colorectal cancer. Assay of MT and FasL expression has prognostic values for colorectal cancer patients.

Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; metabolism ; pathology ; Fas Ligand Protein ; biosynthesis ; genetics ; Female ; Humans ; Immunohistochemistry ; Liver Neoplasms ; metabolism ; secondary ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Male ; Metallothionein ; biosynthesis ; genetics ; Middle Aged ; RNA, Messenger ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVETo investigate the expression of cathepsin B (CatB) in colorectal cancer tissues and serum levels of CatB in patients with colorectal carcinoma and to study the association of CatB expression with lymph node and li ver metastasis.

METHODSImmunohistochemistry was used to detect CatB expression in tissues, and enzyme linked immunosorbent assay was applied to test CatB levels in peripheral vein blood in 83 patients with colorectal cancer.

RESULTSThe expression rates of CatB in primary lesions, normal colon mucosa, lymph node metastases and hepatic metastases were 56.6%, 31.3%, 88.4%, 85.0% respectively. The positive rates of CatB in primary lesions, hepatic and lymph node metastases were higher than that in normal mucosa (chi (2)=45.6124, P< 0.01). The CatB expression rates in lymph node and hepatic metastases were higher than that in primary lesions chi (2)=11.5982, 4.3747, P< 0.05). The positive rate of CatB was higher in Dukes C and D tumors than that in Dukes A and B tumors (chi (2)=18.8871, 25.1650, P< 0.01), higher in poorly differentiated and mucous adenocarcinomas than that in well-moderately differentiated adenocarcinomas chi (2)=14.2338, P< 0.05). The mean serum level of CatB in 83 patients with colorectal cancer was (5.9+/- 2.9) ng/ml, higher than (2.3+/- 1.1) ng/ml in the controls of 30 healthy volunteers (t=6.6975, P< 0.01). The serum level of CatB in the patients with Dukes C, D stages were higher than that with Dukes A, B stages.

CONCLUSIONSEnhanced expression of CatB in colorectal cancer tissues is associated with tumor infiltration and metastasis. Monitoring serum CatB level in patients with colorectal cancer is important in the prediction and diagnosis of lymph node and hepatic metastasis,and valuable for evaluation of the therapeutic effect.

Adult ; Aged ; Cathepsin B ; metabolism ; Colorectal Neoplasms ; metabolism ; pathology ; Female ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging