Objective:To compare the effects on the size and distribution of stress of different adhesives on post-core crown restored posterior stump of teeth dentin, to discover reasonable post-crown adhesive material of posterior stump of teeth post-core crown,by three dimensional finite element analyses. Methods:Establish three dimensional finite element models of maxillary first molar post-core crown by CT scanning, Mimics and Abaqus software,which include post core,crown,tooth root, pericementum,alveolar bone and adhesive material. Divide above models into experimental and control group according to the relative adhesive material. Choose three load spots on the occlusal surface of this model, and exert 80N loading strength on each. Then calculate the peak value and distribution mode of Von mises stress,max-principle stress and shear stress. Results:In the different adhesive material experimental groups,the peak value of the stress on the dentin of the composite resin group was lower than those in zinc phosphate groups. Conclusion:On the condition of this experiment,different adhesives have different effects on the peak value and distribution of the stress on the post-core crown restored posterior stump of teeth dentin.

Glycoprotein N is encoded by glycoprotein N (gN) gene of herpesviruses. The amino acid composition and expression level of this protein vary among difference species of herpesviruses. According to present studies, gN protein is expressed in cytoplasm of host cells, mainly in endoplasmic reticulum. The gN forms a complex with glycoprotein M in host cells. The complex is involved in the processes of viral replication and inter-cellular infection. Moreover, this protein plays a role in immune evasion from host immune system. The study will provide a theoretical basis for further study of herpesvirus gN gene and its encoded protein.
Animals ; Herpesviridae ; genetics ; metabolism ; Herpesviridae Infections ; virology ; Humans ; Viral Envelope Proteins ; genetics ; metabolism

?-Synuclein (?-SYN ) .previously identified as a breast cancer specific gene, has a wildly tumor expression profile mainly in advanced stage. As a special chaperone,?- SYN stimulates the proliferation and metastasis of tumor cells through interacting with estrogen receptor and (or) BubR1. Meanwhile, it is also detectable in the serum or urine from tumor patients, which indicates that?- SYN could be potential as a tumor marker for diagnosis and prognosis.

Adult ; Aspergillosis ; pathology ; surgery ; Female ; Humans ; Laryngeal Diseases ; microbiology ; pathology ; surgery ; Middle Aged ; Vocal Cords ; pathology

Adult ; Chondrosarcoma ; Female ; Humans ; Middle Aged ; Paranasal Sinus Neoplasms ; Skull Base Neoplasms ; Sphenoid Sinus

Objective To observe conditioned enhancement of antibody production against influenza vaccine. Methods 36 female BALB/c mice were injected with 3 μg/mouse influenza virus hemagglutinin (HA) as the unconditioned stimulus (UCS),and camphor odor was served as the conditioned stimulus (CS). After a CS/UCS pairing was made,animals were re-exposed to the CS at Weeks 6. Results Through one conditioned stimulus,the optical density of anti-HA antibody of the conditioned group (Weeks 9:0.68±0.06; Weeks 10:0.60±0.06)was significantly increased compared with the unconditioned group (Weeks 9:0.53±0.06; Weeks 10:0.48±0.04) ( P <0.01). The level of anti-HA antibody of the conditioned group was also significantly greater than other controlled groups( P <0.05). Conclusion Through a single exposure to camphor odor which was paired with immunization of influenza virus HA in a single trial learning protocol,a significant conditioned anti-HA IgG production occurred.

Previous work showed that there was high ratio of Mycoplasma hyorhinis infection in human gastric carcinoma. P37 protein is a membrane lipoprotein of Mycoplasma hyorhinis. It was reported that P37 inhibited cell adhesion and induced tumor invasiveness. To investigate the function of P37 in cancer development, the p37 gene was subcloned into shuttle vector of pAdTrack-CMV. Linearized pAdTrack-CMV-p37 was co-transformed into BJ5183 cells with adenoviral genomic plasmid pAdEasy-1. The identified recombinant DNA was transfected into 293 cells to package adenovirus. From the supernatant and cell lysis, the presence of recombinant adenovirus P37 was proved by PCR. And then BICR cells with this recombinant adenovirus of P37 were successfully infected. RT-PCR and Western blot demonstrated the transcription and expression of P37 in infected BICR cells. And the soluble P37 protein can be secreted into the culture supernatant of infected BICR cells. In the migration assay in vitro, the number of migration BICR cells infected with Ad-p37 was 52.03% more than that of control. The construction of recombinant adenovirus provided a good tool for studying P37 function and its molecular mechanism, which will be further used for in vivo migration and invasion experiments.

Intravascular large B-cell lymphoma (IVLBCL) is a rare non-Hodgkin lymphoma with variable clinical manifestations. Although neurological symptoms are common in patients with IVLBCL, isolated cauda equina-conus medullaris syndrome is rarely reported. We herein report a case of IVLBCL whose initial presentation was cauda equina-conus medullaris syndrome with neither dermatological nor hematological manifestations. A 54-year-old man without known immune-compromised state presented with progressive ascending numbness and weakness of bilateral legs and urine incontinence for 2 months. Lumbar-sacral magnetic resonance images showed gadolinium-enhanced conus medullaris and cauda equina nerve roots. Cerebrospinal fluid analysis revealed lymphocyte predominant pleocytosis and elevated protein level without malignant cells. Focal seizure and mental status changes followed several weeks later. Brain biopsy led to the diagnosis of IVLBCL. Conclusions: IVLBCL should be included in the differential diagnosis of patients with isolated cauda equina-conus medullaris syndrome. A survey of previously published cases in the literature also showed that early initiation of chemotherapy has better outcome.

Expressed emotion was the describing term about the guardian of patients' emotiveness tendency to patients,which reflected attitude,tolerance degree and the coping way in crisis.It was a robust predictor of relapse of schizophrenia.Studies showed that the family intervention for the high expressed emotion guardian of patients could effectively reduce the disease relapse.By summarizing the expressed emotion's concept,assessment tools,influence factors,family interventions,the paper aimed to innovate perfect interventions and promote the patients recovery.

Objective To study the effeciency of endoscopic balloon dilat ation(EBD) for benign structures of colorectal anastomosis. Methods Fifteen cas es with benign stenosis of colorectal anastomosis(BCAS) were treated with endosc opic balloon dilatation,of which sigmoidectomy was performed in one case,and ant erior resection was performed in 14 case;stapler was used in 13 case,and hand su tura was used in 2 cases.Diameters and lengths of strictures were ranging from 0 .2～ 0.7 cm and 0.5～ 2.0 cm respectively. Results Strictures of all 15 patients were dilated successfully.There were no complications in this series.Follow－ u p has been from 3～ 30 months without recurrence of symptoms. Conclusion EBD is safe,efficient and well tolerated,and should be considered as the first choice o f treatment of BCAS.